CN207783217U - Can unrestricted choice light-modulating mode linearity light adjusting mix colours circuit - Google Patents
Can unrestricted choice light-modulating mode linearity light adjusting mix colours circuit Download PDFInfo
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Abstract
The utility model provide it is a kind of can unrestricted choice light-modulating mode linearity light adjusting toning circuit, the ac input end of rectifier bridge is electrically connected with city；First LED light source group, the second LED light source group anode be connected to the cathode output end of rectifier bridge, the cathode of the first LED light source group is connected to the first constant current output pin D1 of driving chip U1, the cathode of the second LED light source group is connected to the second constant current output pin D2 of driving chip U1；First LED light source group, the second LED light source group cathode between connected by variable resistance R5；The gear base pin selection SEL of constant-current driven chip U1 is connected to the cathode of rectifier bridge by variable resistance R4；CS1, CS2 pin of constant-current driven chip U1 is connected to the cathode of rectifier bridge by variable resistance Rcs1 and Rcs2 respectively.To realize automatically selecting for light-modulating mode, the free switching in independent light modulation, individually between toning and light modulation toning.
Description
Technical field
The utility model is related to a kind of driving circuit more particularly to LED drive circuits.
Background technology
In the application process of LED light, some occasions need light to realize the adjusting of atmosphere, meet each one different need
It asks, it is desirable to which light can be adjusted easily with hand by power supply switch-segment, for example dim, mix colours or realize simultaneously light modulation
Toning.And in existing driving power, circuit is complicated, and adjustability is poor, and cost is higher.
LED realizes method there are two the tonings mainly of ON/OFF (switch) sectional dimming at present：1, electricity is switched using microcontroller
Source control light modulation toning.This method is mainly controlled by microcontroller, and driving power is complicated, and required device is more, of high cost.
Small product size is larger, cannot be satisfied driving spaces compact similar to filament lamp, the requirement of bulb lamp.2, linear power supply is equally used,
But two or more IC need to be used and realize light modulation and toning function to coordinate, and light-modulating mode (light modulation/toning/light modulation tune
Color), the light of segmentation, which leads to ratio, to be adjusted with peripheral components, and the materials and processing costs are high, market poor universality, it is difficult to meet not
Same customer demand.
Utility model content
Technical problem underlying to be solved in the utility model is to provide a kind of LED drive circuit, realizes light-modulating mode
It automatically selects, the free switching in independent light modulation, individually between toning and light modulation toning.
In order to solve the above technical problems, the utility model provide it is a kind of can unrestricted choice light-modulating mode linear tune
Light toning circuit, including rectifier bridge, constant-current driven chip U1, the first LED light source group, the second LED light source group；Wherein the first LED
Light source group is cold color temperature light sources, the second LED light source group is warm color temperature light sources group；
The ac input end of the rectifier bridge is electrically connected with city；The sun of the first LED light source group, the second LED light source group
Pole is connected to the cathode output end of rectifier bridge, and the cathode of the first LED light source group is connected to the first constant current of driving chip U1
Output pin D1, the second LED light source group cathode be connected to the second constant current output pin D2 of driving chip U1；Described
One LED light source group, the second LED light source group cathode between connected by variable resistance R5；
The gear base pin selection SEL of constant-current driven chip U1 is connected to the cathode of rectifier bridge by variable resistance R4；Constant current
CS1, CS2 pin of driving chip U1 is connected to the cathode of rectifier bridge by variable resistance Rcs1 and Rcs2 respectively；
When the resistance value of the variable resistance R5 is 0, and the resistance value of variable resistance Rcs1 and Rcs2 differ, and described first
There is one group of effective, another group of failure in LED light source group, the second LED light source group；Resistance value the first constant current of change for changing resistance R4 is defeated
Go out the sequence of pin D1, the second constant current output pin D2 switches, and the first constant current output pin D1, the second constant current output pin
The electric current of D2 outputs is different；Circuit is in color temperature constant, the adjustable pattern of brightness at this time；
When the variable resistance R5 is disconnected, and the resistance value of variable resistance Rcs1 and Rcs2 is identical, the first constant current output pipe
Foot D1, the electric current of the second constant current output pin D2 outputs are identical；The first constant current output pin D1 of resistance value change of change resistance R4,
The sequence of second constant current output pin D2 switch, at this time circuit be in the pattern of brightness constancy, adjustable color；
When the variable resistance R5 is disconnected, and the resistance value of variable resistance Rcs1 and Rcs2 differ, the first constant current output
Pin D1, the sequence of the second constant current output pin D2 switch and different with the difference of resistance R4 resistance values, and the first constant current
The electric current that output pin D1, the second constant current output pin D2 are exported differs, and circuit is in the adjustable mould of brightness, colour temperature at this time
Formula.
In a preferred embodiment：The level height of the difference of the resistance R4 resistance values, SEL pins changes therewith；One ratio
Compared with the level that device detects SEL pins, the first constant current output pin D1, the second constant current output pin D2 are adjusted according to the level
The sequence of opening and closing, to realize gear switch.
In a preferred embodiment：The circuit is in color temperature constant, the adjustable pattern of brightness, and the resistance value of resistance R4 is
0, SEL pin level is minimum；Circuit is two sections of light-modulating modes；First segment：D2 is opened, D1 is turned off, the second constant current output pin D2
The electric current Id2=V of outputRcs2/Rcs2；Second segment：D2 shutdowns, D1 are opened, the electric current Id1 of the first constant current output pin D1 outputs
=VRcs1/Rcs1；Light modulation ratio is 100%-X%, X%=Rcs1/Rcs2.
In a preferred embodiment：The circuit is in color temperature constant, the adjustable pattern of brightness, and when resistance R4 disconnections,
SEL pin level highests；Circuit is three-stage dimming pattern；First segment：D2 is opened, D1 is turned off, and the second constant current output pin D2 is defeated
The electric current Id2=V gone outRcs2/Rcs2；Second segment：D1, D2 are opened simultaneously, output current Id1+Id2=VRcs1/Rcs1+VRcs1/
Rcs1；Third section：D2 shutdowns, D1 are opened, the electric current Id1=V of the first constant current output pin D1 outputsRcs1/Rcs1；Light modulation ratio
For 100%-Y%-X%, X%=Rcs1/Rcs2, Y%=50%+Rcs2/2Rcs1.
In a preferred embodiment：The circuit is in color temperature constant, the adjustable pattern of brightness, and resistance R4 resistance values are not
0 when not turning off yet, and SEL pin level is between highest and lowest；Circuit is three-stage dimming pattern；First segment：D2 is opened, D1 is closed
It is disconnected, the electric current Id2=V of the second constant current output pin D2 outputsRcs2/Rcs2；Second segment：D2 shutdowns, D1 are opened, and the first constant current is defeated
Go out the electric current Id1=V of pin D1 outputsRcs1/Rcs1；Third section D1, D2 opens simultaneously, output current Id1+Id2=VRcs1/
Rcs1+VRcs1/Rcs1；Light modulation ratio is 100%-X%-Y%, X%=Rcs1/Rcs2, Y%=50%+Rcs2/2Rcs1.
In a preferred embodiment：The circuit is in the pattern of brightness constancy, adjustable color, and the resistance value of resistance R4 is
0, SEL pin level is minimum；Circuit is two sections of toner patterns；First segment：D2 is opened, D1 is turned off, the second constant current output pin D2
The electric current Id2=V of outputRcs2/ Rcs2, the second LED light source group are lighted；Second segment：D2 shutdowns, D1 are opened, the first constant current output
The electric current Id1=V of pin D1 outputsRcs1/ Rcs1, the first LED light source group are lighted.
In a preferred embodiment：The circuit is in the pattern of brightness constancy, adjustable color, and when resistance R4 disconnections,
SEL pin level highests；Circuit is three sections of toner patterns；First segment：D2 is opened, D1 is turned off, and the second constant current output pin D2 is defeated
The electric current Id2=V gone outRcs2/ Rcs2, the second LED light source group are lighted；Second segment：D1, D2 are opened simultaneously, output current Id1+
Id2=VRcs1/Rcs1+VRcs1/ Rcs1, the first LED light source group, the second LED light source group are lighted simultaneously；Third section：D2 shutdowns, D1
It opens, the electric current Id1=V of the first constant current output pin D1 outputsRcs1/ Rcs1, the first LED light source group are lighted.
In a preferred embodiment：The circuit is in the pattern of brightness constancy, adjustable color, and resistance R4 resistance values are not
0 when not turning off yet, and SEL pin level is between highest and lowest；Circuit is three-stage dimming pattern；First segment：D2 is opened, D1 is closed
It is disconnected, the electric current Id2=V of the second constant current output pin D2 outputsRcs2/ Rcs2, the second LED light source group are lighted；Second segment：D2 is closed
Disconnected, D1 is opened, the electric current Id1=V of the first constant current output pin D1 outputsRcs1/ Rcs1, the first LED light source group are lighted；Third section
D1, D2 are opened simultaneously, output current Id1+Id2=VRcs1/Rcs1+VRcs1/Rcs1；First LED light source group, the second LED light source
It organizes while lighting.
In a preferred embodiment：Circuit is in the adjustable pattern of brightness, colour temperature, and the resistance value of resistance R4 is 0, SEL
Pin level is minimum；Circuit is two sections of light-modulating modes；First segment：D2 is opened, D1 is turned off, the second constant current output pin D2 outputs
Electric current Id2=VRcs2/ Rcs2, the second LED light source group are lighted；Second segment：D2 shutdowns, D1 are opened, the first constant current output pin D1
The electric current Id1=V of outputRcs1/ Rcs1, the first LED light source group are lighted；Light modulation ratio is 100%-X%, X%=Rcs1/
Rcs2。
In a preferred embodiment：Circuit is in the adjustable pattern of brightness, colour temperature, and when resistance R4 disconnections, SEL pins
Level highest；Circuit is three-stage dimming pattern；First segment：D2 is opened, D1 is turned off, the electric current of the second constant current output pin D2 outputs
Id2=VRcs2/ Rcs2, the second LED light source group are lighted；Second segment：D1, D2 are opened simultaneously, output current Id1+Id2=VRcs1/
Rcs1+VRcs1/ Rcs1, the first LED light source group, the second LED light source group are lighted simultaneously；Third section：D2 shutdowns, D1 are opened, and first
LED light source group is lighted, the electric current Id1=V of the first constant current output pin D1 outputsRcs1/Rcs1；Light modulation ratio is 100%-Y%-
X%, X%=Rcs1/Rcs2, Y%=50%+Rcs2/2Rcs1；
The circuit is in color temperature constant, the adjustable pattern of brightness, and resistance R4 resistance values are not 0 when also not turning off, SEL pipes
Foot level is between highest and lowest；Circuit is three-stage dimming pattern；First segment：D2 is opened, D1 is turned off, the second constant current output pipe
The electric current Id2=V of foot D2 outputsRcs2/ Rcs2, the second LED light source group are lighted；Second segment：D2 shutdowns, D1 are opened, the first constant current
The electric current Id1=V of output pin D1 outputsRcs1/ Rcs1, the first LED light source group are lighted；Third section D1, D2 opens simultaneously, output
Electric current is Id1+Id2=VRcs1/Rcs1+VRcs1/ Rcs1, the first LED light source group, the second LED light source group are lighted simultaneously；Light modulation ratio
Example is 100%-X%-Y%, X%=Rcs1/Rcs2, Y%=50%+Rcs2/2Rcs1.
Compared to the prior art, the technical solution of the utility model has following advantageous effect：
It is provided by the utility model it is a kind of can the linearity light adjusting of unrestricted choice light-modulating mode mix colours circuit, by single linear
The inside of constant current IC is detected, the MOS conductings that do not gone the same way, as long as adjusting CS resistance, when CS resistance differs, can obtain difference
Electric current plays the role of light modulation.
It is provided by the utility model it is a kind of can the linearity light adjusting of unrestricted choice light-modulating mode mix colours circuit, by single linear
The inside of constant current IC is detected, the MOS conductings that do not gone the same way, can as long as adjustment CS resistance per corresponding output light source all the way all the way
To obtain identical or different electric current, play the role of mixing colours or dimming simultaneously toning.
It is provided by the utility model it is a kind of can unrestricted choice light-modulating mode linearity light adjusting mix colours circuit, be suitable for ON/OFF
Two sections and two sections of use above.
It is provided by the utility model it is a kind of can unrestricted choice light-modulating mode linearity light adjusting mix colours circuit, single can be passed through
Chip realizes light modulation/toning/light modulation toning function, and can be adjusted by peripheral components, carries out light-modulating mode switching；Segmentation
Quantity switches (two sections or three sections)；Every section of light modulation current ratio is self-defined；Can in three of the above function free switching, meet
Different clients demand；And peripheral circuit and its it is simple, material is versatile, material and processing cost are low, electric current setting is constant,
The characteristics of good product consistency.
Description of the drawings
Fig. 1 is the circuit diagram of the preferred embodiment in the utility model.
Specific implementation mode
The utility model is described further below by way of attached drawing, but the utility model is not limited only to this embodiment.
In conjunction with shown in Fig. 1, it is a kind of can the linearity light adjusting of unrestricted choice light-modulating mode mix colours circuit, including rectifier bridge, constant current
Driving chip U1, the first LED light source group, the second LED light source group；Wherein the first LED light source group is cold color temperature light sources, the 2nd LED
Light source group is warm color temperature light sources group；
The ac input end of the rectifier bridge is electrically connected with city；The sun of the first LED light source group, the second LED light source group
Pole is connected to the cathode output end of rectifier bridge, and the cathode of the first LED light source group is connected to the first constant current of driving chip U1
Output pin D1, the second LED light source group cathode be connected to the second constant current output pin D2 of driving chip U1；Described
One LED light source group, the second LED light source group cathode between connected by variable resistance R5；
The gear base pin selection SEL of constant-current driven chip U1 is connected to the cathode of rectifier bridge by variable resistance R4；Constant current
CS1, CS2 pin of driving chip U1 is connected to the cathode of rectifier bridge by variable resistance Rcs1 and Rcs2 respectively；
The level height of the difference of the resistance R4 resistance values, SEL pins changes therewith；One comparator detects SEL pins
Level adjusts the first constant current output pin D1, the sequence that the second constant current output pin D2 is opened and closed according to the level,
To realize gear switch.
When the resistance value of the variable resistance R5 is 0, and the resistance value of variable resistance Rcs1 and Rcs2 differ, at this point, the
There is one group of effective, another group of failure in one LED light source group, the second LED light source group；The resistance value for changing resistance R4 changes the first constant current
The sequence of output pin D1, the second constant current output pin D2 switches, and the first constant current output pin D1, the second constant current output pipe
The electric current of foot D2 outputs is different；Circuit is in color temperature constant, the adjustable pattern of brightness at this time；
When the variable resistance R5 is disconnected, and the resistance value of variable resistance Rcs1 and Rcs2 is identical, the first constant current output pipe
Foot D1, the electric current of the second constant current output pin D2 outputs are identical；The first constant current output pin D1 of resistance value change of change resistance R4,
The sequence of second constant current output pin D2 switch, at this time circuit be in the pattern of brightness constancy, adjustable color；
When the variable resistance R5 is disconnected, and the resistance value of variable resistance Rcs1 and Rcs2 differ, the first constant current output
Pin D1, the sequence of the second constant current output pin D2 switch and different with the difference of resistance R4 resistance values, and the first constant current
Output pin D1, the electric current of the second constant current output pin D2 outputs are different, and circuit is in the adjustable mould of brightness, colour temperature at this time
Formula.
Hereafter above three pattern is specifically described：
1. for color temperature constant, the adjustable pattern of brightness, the first LED light source group fails under this pattern, the second LED light source group
Effectively, it is always warm colour temperature to go out light color temperature.The first LED light source group fails, and the second LED light source group is effectively meant that,
First LED light source group is extinguished always, the second LED light source group effectively normally can be lighted or extinguish；Alternatively, the first LED light source group
It does not place directly.
1) when the resistance value of resistance R4 is that 0, SEL pin level is minimum；Circuit is two sections of light-modulating modes；First segment：D2 unlatchings,
D1 is turned off, the electric current Id2=V of the second constant current output pin D2 outputsRcs2/Rcs2；Second segment：D2 shutdowns, D1 are opened, and first is permanent
Flow the electric current Id1=V of output pin D1 outputsRcs1/Rcs1；Light modulation ratio is 100%-X%, X%=Rcs1/Rcs2.
2) when resistance R4 is disconnected, SEL pin level highests；Circuit is three-stage dimming pattern；First segment：D2 unlatchings, D1
Shutdown, the electric current Id2=V of the second constant current output pin D2 outputsRcs2/Rcs2；Second segment：D1, D2 are opened simultaneously, output current
For Id1+Id2=VRcs1/Rcs1+VRcs1/Rcs1；Third section：D2 shutdowns, D1 are opened, the electricity of the first constant current output pin D1 outputs
Flow Id1=VRcs1/Rcs1；Light modulation ratio is 100%-Y%-X%, X%=Rcs1/Rcs2, Y%=50%+Rcs2/2Rcs1.
3) when resistance R4 resistance values do not turn off for 0 yet, SEL pin level is between highest and lowest；Circuit is three sections
Light-modulating mode；First segment：D2 is opened, D1 is turned off, the electric current Id2=V of the second constant current output pin D2 outputsRcs2/Rcs2；Second
Section：D2 shutdowns, D1 are opened, the electric current Id1=V of the first constant current output pin D1 outputsRcs1/Rcs1；Third section D1, D2 is beaten simultaneously
It opens, output current Id1+Id2=VRcs1/Rcs1+VRcs1/Rcs1；Light modulation ratio is 100%-X%-Y%, X%=Rcs1/
Rcs2, Y%=50%+Rcs2/2Rcs1.
In different situations, hop count switching is to be carried out as the transfer sequence of switch recycles, and work as certain time not
After being operated, again when Operation switch, acquiescence is started with first segment.
2. for the pattern of brightness constancy, adjustable color
1) when the resistance value of resistance R4 is that 0, SEL pin level is minimum；Circuit is two sections of toner patterns；First segment：D2 unlatchings,
D1 is turned off, the electric current Id2=V of the second constant current output pin D2 outputsRcs2/ Rcs2, the second LED light source group are lighted；Second segment：D2
Shutdown, D1 are opened, the electric current Id1=V of the first constant current output pin D1 outputsRcs1/ Rcs1, the first LED light source group are lighted.
2) when resistance R4 is disconnected, SEL pin level highests；Circuit is three sections of toner patterns；First segment：D2 unlatchings, D1
Shutdown, the electric current Id2=V of the second constant current output pin D2 outputsRcs2/ Rcs2, the second LED light source group are lighted；Second segment：D1、
D2 is opened simultaneously, output current Id1+Id2=VRcs1/Rcs1+VRcs1/ Rcs1, the first LED light source group, the second LED light source group
It lights simultaneously；Third section：D2 shutdowns, D1 are opened, the electric current Id1=V of the first constant current output pin D1 outputsRcs1/ Rcs1, first
LED light source group is lighted.
3) when resistance R4 resistance values do not turn off for 0 yet, SEL pin level is between highest and lowest；Circuit is three sections
Light-modulating mode；First segment：D2 is opened, D1 is turned off, the electric current Id2=V of the second constant current output pin D2 outputsRcs2/ Rcs2, second
LED light source group is lighted；Second segment：D2 shutdowns, D1 are opened, the electric current Id1=V of the first constant current output pin D1 outputsRcs1/
Rcs1, the first LED light source group are lighted；Third section D1, D2 opens simultaneously, output current Id1+Id2=VRcs1/Rcs1+VRcs1/
Rcs1；First LED light source group, the second LED light source group are lighted simultaneously.
In different situations, hop count switching is to be carried out as the transfer sequence of switch recycles, and work as certain time not
After being operated, again when Operation switch, acquiescence is started with first segment.
3. for the adjustable pattern of brightness, colour temperature
1) when the resistance value of resistance R4 is that 0, SEL pin level is minimum；Circuit is two sections of light-modulating modes；First segment：D2 unlatchings,
D1 is turned off, the electric current Id2=V of the second constant current output pin D2 outputsRcs2/ Rcs2, the second LED light source group are lighted；Second segment：D2
Shutdown, D1 are opened, the electric current Id1=V of the first constant current output pin D1 outputsRcs1/ Rcs1, the first LED light source group are lighted；Light modulation
Ratio is 100%-X%, X%=Rcs1/Rcs2.
2) when resistance R4 is disconnected, SEL pin level highests；Circuit is three-stage dimming pattern；First segment：D2 unlatchings, D1
Shutdown, the electric current Id2=V of the second constant current output pin D2 outputsRcs2/ Rcs2, the second LED light source group are lighted；Second segment：D1、
D2 is opened simultaneously, output current Id1+Id2=VRcs1/Rcs1+VRcs1/ Rcs1, the first LED light source group, the second LED light source group
It lights simultaneously；Third section：D2 shutdowns, D1 are opened, and the first LED light source group is lighted, the electric current of the first constant current output pin D1 outputs
Id1=VRcs1/Rcs1；Light modulation ratio is 100%-Y%-X%, X%=Rcs1/Rcs2, Y%=50%+Rcs2/2Rcs1；
3) when resistance R4 resistance values do not turn off for 0 yet, SEL pin level is between highest and lowest；Circuit is three sections
Light-modulating mode；First segment：D2 is opened, D1 is turned off, the electric current Id2=V of the second constant current output pin D2 outputsRcs2/ Rcs2, second
LED light source group is lighted；Second segment：D2 shutdowns, D1 are opened, the electric current Id1=V of the first constant current output pin D1 outputsRcs1/
Rcs1, the first LED light source group are lighted；Third section D1, D2 opens simultaneously, output current Id1+Id2=VRcs1/Rcs1+VRcs1/
Rcs1, the first LED light source group, the second LED light source group are lighted simultaneously；Light modulation ratio is 100%-X%-Y%, X%=Rcs1/
Rcs2, Y%=50%+Rcs2/2Rcs1.
In different situations, hop count switching is to be carried out as the transfer sequence of switch recycles, and work as certain time not
After being operated, again when Operation switch, acquiescence is started with first segment.
It is above-mentioned can the linearity light adjusting of unrestricted choice light-modulating mode mix colours circuit, be suitable for two sections and two sections of ON/OFF or more
Using.Light modulation/toning/light modulation toning function can be realized by single chip, and can be adjusted by peripheral components, carried out
Light-modulating mode switches；Number of fragments switches (two sections or three sections)；Every section of light modulation current ratio is self-defined；It can be in three of the above work(
Free switching in energy meets different clients demand；And peripheral circuit and its it is simple, material is versatile, material and be processed into
The characteristics of this is low, electric current setting is constant, good product consistency.
The preferable specific implementation mode of the above, only the utility model, but the scope of protection of the utility model is not
It is confined to this, any one skilled in the art within the technical scope disclosed by the utility model, can readily occur in
Change or replacement, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should
It is subject to the protection scope in claims.
Claims (10)
1. can unrestricted choice light-modulating mode linearity light adjusting mix colours circuit, it is characterised in that：Including rectifier bridge, constant-current driven chip
U1, the first LED light source group, the second LED light source group；Wherein the first LED light source group is cold color temperature light sources group, the second LED light source group
To warm up color temperature light sources group；
The ac input end of the rectifier bridge is electrically connected with city；The anode company of the first LED light source group, the second LED light source group
It is connected to the cathode output end of rectifier bridge, the cathode of the first LED light source group is connected to the first constant current output of driving chip U1
Pin D1, the second LED light source group cathode be connected to the second constant current output pin D2 of driving chip U1；Described first
LED light source group, the second LED light source group cathode between connected by variable resistance R5；
The gear base pin selection SEL of constant-current driven chip U1 is connected to the cathode of rectifier bridge by variable resistance R4；Constant current drives
CS1, CS2 pin of chip U1 is connected to the cathode of rectifier bridge by variable resistance Rcs1 and Rcs2 respectively；
When the resistance value of the variable resistance R5 is 0, and the resistance value of variable resistance Rcs1 and Rcs2 differ, the first LED light source
There is one group of effective, another group of failure in group, the second LED light source group；The resistance value for changing resistance R4 changes the first constant current output pin
The sequence of D1, the second constant current output pin D2 switches, and the first constant current output pin D1, the second constant current output pin D2 outputs
Electric current it is different；Circuit is in color temperature constant, the adjustable pattern of brightness at this time；
When the variable resistance R5 is disconnected, and the resistance value of variable resistance Rcs1 and Rcs2 is identical, the first constant current output pin D1,
The electric current of second constant current output pin D2 outputs is identical；The resistance value for changing resistance R4 changes the first constant current output pin D1, second
The sequence of constant current output pin D2 switch, at this time circuit be in the pattern of brightness constancy, adjustable color；
When the variable resistance R5 is disconnected, and the resistance value of variable resistance Rcs1 and Rcs2 differ, the first constant current output pin
D1, the sequence of the second constant current output pin D2 switch and different with the difference of resistance R4 resistance values, and the first constant current output
Pin D1, the electric current of the second constant current output pin D2 outputs are different；Circuit is in the adjustable pattern of brightness, colour temperature at this time.
2. it is according to claim 1 it is a kind of can unrestricted choice light-modulating mode linearity light adjusting mix colours circuit, it is characterised in that：
The level height of the difference of the resistance R4 resistance values, SEL pins changes therewith；One comparator detects the level of SEL pins, according to
The sequence that the height of level adjusts the first constant current output pin D1, the second constant current output pin D2 is opened and closed, to realize shelves
Position switching.
3. it is according to claim 2 it is a kind of can unrestricted choice light-modulating mode linearity light adjusting mix colours circuit, it is characterised in that：
The circuit is in color temperature constant, the adjustable pattern of brightness, and the resistance value of resistance R4 is that 0, SEL pin level is minimum；Circuit is
Two sections of light-modulating modes；First segment：D2 is opened, D1 is turned off, the electric current Id2=V of the second constant current output pin D2 outputsRcs2/Rcs2；
Second segment：D2 shutdowns, D1 are opened, the electric current Id1=V of the first constant current output pin D1 outputsRcs1/Rcs1；Light modulation ratio is
100%-X%, X%=Rcs1/Rcs2.
4. it is according to claim 2 it is a kind of can unrestricted choice light-modulating mode linearity light adjusting mix colours circuit, it is characterised in that：
The circuit is in color temperature constant, the adjustable pattern of brightness, and when resistance R4 disconnections, SEL pin level highests；Circuit is three sections
Light-modulating mode；First segment：D2 is opened, D1 is turned off, the electric current Id2=V of the second constant current output pin D2 outputsRcs2/Rcs2；Second
Section：D1, D2 are opened simultaneously, output current Id1+Id2=VRcs1/Rcs1+VRcs1/Rcs1；Third section：D2 shutdowns, D1 are opened,
The electric current Id1=V of first constant current output pin D1 outputsRcs1/Rcs1；Light modulation ratio is 100%-Y%-X%, X%=Rcs1/
Rcs2, Y%=50%+Rcs2/2Rcs1.
5. it is according to claim 2 it is a kind of can unrestricted choice light-modulating mode linearity light adjusting mix colours circuit, it is characterised in that：
The circuit is in color temperature constant, the adjustable pattern of brightness, and resistance R4 resistance values are not 0 when also not turning off, and SEL pin level exists
Between highest and lowest；Circuit is three-stage dimming pattern；First segment：D2 is opened, D1 is turned off, the second constant current output pin D2 outputs
Electric current Id2=VRcs2/Rcs2；Second segment：D2 shutdowns, D1 are opened, the electric current Id1=of the first constant current output pin D1 outputs
VRcs1/Rcs1；Third section D1, D2 opens simultaneously, output current Id1+Id2=VRcs1/Rcs1+VRcs1/Rcs1；Light modulation ratio
For 100%-X%-Y%, X%=Rcs1/Rcs2, Y%=50%+Rcs2/2Rcs1.
6. it is according to claim 2 it is a kind of can unrestricted choice light-modulating mode linearity light adjusting mix colours circuit, it is characterised in that：
The circuit is in the pattern of brightness constancy, adjustable color, and the resistance value of resistance R4 is that 0, SEL pin level is minimum；Circuit is
Two sections of toner patterns；First segment：D2 is opened, D1 is turned off, the electric current Id2=V of the second constant current output pin D2 outputsRcs2/ Rcs2,
Second LED light source group is lighted；Second segment：D2 shutdowns, D1 are opened, the electric current Id1=V of the first constant current output pin D1 outputsRcs1/
Rcs1, the first LED light source group are lighted.
7. it is according to claim 2 it is a kind of can unrestricted choice light-modulating mode linearity light adjusting mix colours circuit, it is characterised in that：
The circuit is in the pattern of brightness constancy, adjustable color, and when resistance R4 disconnections, SEL pin level highests；Circuit is three sections
Toner pattern；First segment：D2 is opened, D1 is turned off, the electric current Id2=V of the second constant current output pin D2 outputsRcs2/ Rcs2, second
LED light source group is lighted；Second segment：D1, D2 are opened simultaneously, output current Id1+Id2=VRcs1/Rcs1+VRcs1/ Rcs1, first
LED light source group, the second LED light source group are lighted simultaneously；Third section：D2 shutdowns, D1 are opened, the first constant current output pin D1 outputs
Electric current Id1=VRcs1/ Rcs1, the first LED light source group are lighted.
8. it is according to claim 2 it is a kind of can unrestricted choice light-modulating mode linearity light adjusting mix colours circuit, it is characterised in that：
The circuit is in the pattern of brightness constancy, adjustable color, and resistance R4 resistance values are not 0 when also not turning off, and SEL pin level exists
Between highest and lowest；Circuit is three-stage dimming pattern；First segment：D2 is opened, D1 is turned off, the second constant current output pin D2 outputs
Electric current Id2=VRcs2/ Rcs2, the second LED light source group are lighted；Second segment：D2 shutdowns, D1 are opened, the first constant current output pin
The electric current Id1=V of D1 outputsRcs1/ Rcs1, the first LED light source group are lighted；Third section D1, D2 opens simultaneously, and output current is
Id1+Id2=VRcs1/Rcs1+VRcs1/Rcs1；First LED light source group, the second LED light source group are lighted simultaneously.
9. it is according to claim 2 it is a kind of can unrestricted choice light-modulating mode linearity light adjusting mix colours circuit, it is characterised in that：
Circuit is in the adjustable pattern of brightness, colour temperature, and the resistance value of resistance R4 is that 0, SEL pin level is minimum；Circuit is two sections of tune
Optical mode；First segment：D2 is opened, D1 is turned off, the electric current Id2=V of the second constant current output pin D2 outputsRcs2/ Rcs2, second
LED light source group is lighted；Second segment：D2 shutdowns, D1 are opened, the electric current Id1=V of the first constant current output pin D1 outputsRcs1/
Rcs1, the first LED light source group are lighted；Light modulation ratio is 100%-X%, X%=Rcs1/Rcs2.
10. it is according to claim 2 it is a kind of can the linearity light adjusting of unrestricted choice light-modulating mode mix colours circuit, feature exists
In：Circuit is in the adjustable pattern of brightness, colour temperature, and when resistance R4 disconnections, SEL pin level highests；Circuit is three sections of tune
Optical mode；First segment：D2 is opened, D1 is turned off, the electric current Id2=V of the second constant current output pin D2 outputsRcs2/ Rcs2, second
LED light source group is lighted；Second segment：D1, D2 are opened simultaneously, output current Id1+Id2=VRcs1/Rcs1+VRcs1/ Rcs1, first
LED light source group, the second LED light source group are lighted simultaneously；Third section：D2 shutdowns, D1 are opened, and the first LED light source group is lighted, and first is permanent
Flow the electric current Id1=V of output pin D1 outputsRcs1/Rcs1；Light modulation ratio be 100%-Y%-X%, X%=Rcs1/Rcs2,
Y%=50%+Rcs2/2Rcs1；
The circuit is in color temperature constant, the adjustable pattern of brightness, and resistance R4 resistance values are not 0 when also not turning off, SEL pin electricity
It puts down between highest and lowest；Circuit is three-stage dimming pattern；First segment：D2 is opened, D1 is turned off, the second constant current output pin D2
The electric current Id2=V of outputRcs2/ Rcs2, the second LED light source group are lighted；Second segment：D2 shutdowns, D1 are opened, the first constant current output
The electric current Id1=V of pin D1 outputsRcs1/ Rcs1, the first LED light source group are lighted；Third section D1, D2 opens simultaneously, output current
For Id1+Id2=VRcs1/Rcs1+VRcs1/ Rcs1, the first LED light source group, the second LED light source group are lighted simultaneously；Light modulation ratio is
100%-X%-Y%, X%=Rcs1/Rcs2, Y%=50%+Rcs2/2Rcs1.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108135055A (en) * | 2018-01-12 | 2018-06-08 | 厦门恩耐照明技术有限公司 | It is a kind of can unrestricted choice light-modulating mode linearity light adjusting toning circuit |
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2018
- 2018-01-12 CN CN201820055603.5U patent/CN207783217U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108135055A (en) * | 2018-01-12 | 2018-06-08 | 厦门恩耐照明技术有限公司 | It is a kind of can unrestricted choice light-modulating mode linearity light adjusting toning circuit |
| CN108135055B (en) * | 2018-01-12 | 2024-06-04 | 厦门阳光恩耐照明有限公司 | Linear dimming and toning circuit capable of freely selecting dimming mode |
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Effective date of registration: 20200420 Address after: Xinyang Industrial Park Haicang District of Xiamen City, Fujian province 361000 after Cheung Road No. 88 Patentee after: XIAMEN YANKON ENERGETIC LIGHTING Co.,Ltd. Address before: 361000, Xiamen District, Haicang District, Fujian Province Road, No. 88, science building, two floor, A District Patentee before: Xiamen Energetic Lighting Co.,Ltd. |
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