JPS5857293A - Device for firing discharge lamp - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention provides a device for lighting a discharge lamp.

FIG. 1 is a diagram of a typical advanced technology. The electric power from the intervening AC 'dIL' is connected to the inlet opening/closing 42,
The signal is applied to a transmitting circuit 6 and a receiving f8 circuit 7 via a block filter 3 and a branch opening 44 line 5. The transmission 4M circuit 6 outputs, for example, 100Kttz to the line 5.
A carrier wave signal of 1M degree is transmitted, and thereby the receiving circuit 7
The discharge lamp 8 is controlled accordingly. In such prior art, since the control signal of about 5K 100 KHz is directly connected to the line, it is not possible to connect other buildings etc. to which power is supplied from the pole transformer facing the AC power source 1. , it is necessary to prevent signals for its control from being sent. Therefore, a block filter 3 is required. Also, in this prior art,
The configurations of the transmitting circuit 6 and receiving circuit 7 are complicated.

Brown 2 diagram is a block diagram of another original execution technique.

The power from the music AC power supply l is supplied from the switch 9 to the light 1.
Power is supplied through the 0,1lK15 changeover switch 12;
It will be done. Switch 9//'i hand #Irm made, that hand #
! Continuously connected by I work. a# time detection circuit 13,
The comparator circuit 1 detects the time after the switch 9 is cut off.
Give to 4. Outputs from the comparison circuit 14Kfi and the reference time generation circuit 15 are also provided. In this way, the comparison circuit 14
When the switch 9 is operated for a time longer than the reference time determined by the reference time generation circuit 15, the changeover switch 12 is operated to energize the discharge lamp IO.

When the switch 9 is held '1a1th' for a time shorter than the reference time determined by the reference time generating circuit 15, the changeover switch 12 is switched to energize the discharge lamp 11. In such prior art, 1 m1 at the reference time
It is necessary to eliminate variations in the reference time determined by the generation circuit 15 so that operations can be performed without error. In addition, the operation of the switch by 90 people varies from point to point, making it difficult to control the discharge lamps 1tl and 11 to stop as desired.

SUMMARY OF THE INVENTION An object of the present invention is to provide a growing ridge lamp lighting device with a simplified circuit configuration and excellent operability.

FIG. 3 is a simplified block diagram of one embodiment of the present invention. The power of the commercial AC power source is supplied from the control switch 16 to line 17.11. By operating this transmitter circuit 19, the control switch 16 is instantaneously cut off and the sea bream light is turned on.
．． 18, the mantissa (3 in this example) is received by MA1eA2. When A3 is energized, each of the receiving circuits 1C1, AI, A2 . A load switch 512 provided in connection with A3. S22,531, discharge lamps Ll, L2. Power energization and de-energization of L3 is side-legged.

FIG. 4 is a block diagram showing the specific configuration of the control switch 16 and the transmission 1d circuit 19. What to do with the width pressure waveform shown in FIG. 5 111 in the curved AC 4IIA1.

The current from the father current is led out from the transformer 28 to the line 30 via the full-wave & wave circuit 29. The four pressure waveforms output from line 30 are plotted in the fifth section.

No. 1d from this line 30 is applied to a monostable circuit 31Vc. 41 stabilizing circuit 31 connects the (8
In response to Ft), a signal having Mcedar shown in FIG.

The output from the full-wave rectifier circuit 29 is output from the diode 33a through the smoothing capacitor 33, and then through the switches 51, B2, and B3, which can be connected to the line 34, respectively, to the trip flop Fl.

F2. Set F3 respectively. Switch 5152.
53tj, receiving circuit AI, A2. It corresponds to A3 in terms of feed. When the switch Sl is operated to conduct as shown in @5 Figure 147, the Aritub prop Fl is connected to the line 35.
In addition to deriving a signal as a set output Q having the waveform shown in FIG.
, F2, F3, the OR gate 36 receives the set output Q from line 37! A signal having a waveform shown at 61 in FIG. 5 is derived. Gate 38 is OR gate 36
48 through the line 37' and the inverted signal from the line 30, the te1 signal shown in FIG.
Set. As a result, the set output Q of the 7-1 block flop 40 is set to line 4! 85 (sub) is derived. The gate 42 is connected to the set output Q via the line 41 of the Aritz prop 40 and the monostable circuit 31.
and an inverted signal on line 32 from
A signal is provided from line 43 to monostable circuit 44 and reset flip-flop 40 via inverter circuit 45 .

Analog switch Bl for monostable circuit $44.

B2. Resistors R1, R2, and R3 are connected via B3, respectively. The lv1 work of this monostable circuit 44 is the 6th
As shown in the figure. Output waveform ri of opening AC m section l 6th
This is shown in Figure (1). Analog switch Bl, B2. B
3 is selectively conducted, the monostable circuit 44/I or line 46 ic s 6 sections, FIG. 6 13+ and @
In this way, the signals Pj derived from the line 46 of the monostable circuit 44 and the resistances of the resistors R1, R2 and R3 are respectively derived. Confronted time limit Wl.

w2. war=has n. analog switch Bl,
B2. B5Kr1, flip 7o7bu Fl.

F2. The set output Q of F3 is applied via lines 35, 47 and 48, respectively. This time Wl.

W2. W3 is a receiving circuit AI, A2 . A3, therefore the discharge lamp L1. L2. Each corresponds to L3.

The waveform of the signal derived from the gate 42 to the line 43 is @
As shown in Fig. 5 (1111K), since the analog switch Bl becomes conductive due to the switching of switch Sl, the monostable circuit 44 derives a signal on line 46 with a time limit Wl shown in Fig. 5 (1u). do. The signal from this line 46 is passed through a resistor 49 to a light emitting diode 5.
0, which causes the light emitting diode 50 to shut off for a timed period of -Wl. Therefore, phototransistor 5
1H1 The time W when the source is not received from the source diode 50
The control switch 16, which includes the diode bridge 52, is thus cut off for a time limit 1djWl. 4FIJP) from the line 46, and also from the differential capacitor 53 and the resistor 54 connected to the differential capacitor 53 via the line 55 & to the terminal 70 terminal Fl, F2. Reset F3. The waveform of the signal derived on line 55 is shown in Figure 5. In this way, power is supplied to the line 17 to produce the voltage waveform shown in FIG. 5 114.

FIG. 7 is a concrete block diagram of the receiving circuit At.

It is. A transformer 60 follows between the lines 17 and 18. The output from the transformer 60 is the full wave 4 & current circuit 6.
1 and taken out on line 62. The output from line 62 is provided to time control circuit 65 via resistor 63 and buffer 645r. The time constant circuit 65 is
It consists of a resistor 66 and a ramp type capacitor "r67.The output from the specific number circuit 65 is level discriminated by a level discrimination circuit 68 consisting of a unit circuit, etc., and the level discrimination output of 7 is sent from line θ9 to a monostable circuit 98. At the same time, the AND gate 69tζ is also applied.

ANDG) 69K is also given the output from the monostable circuit 98. Output 7Jr from AND gate 69 through line 701) to flip-flop 71ff) '7
CK input terminal CK is applied. flip 70 tube 7
1 reset output ηri resistor 72 to transistor 73
Given to 0 pace. This reset output Q#:t, data input D [given. Thus flip flop 7
1ij, each time a pulse is input to the input terminal C, the level of the reset output terminal is alternately Kf. A relay coil 75 of a relay 74 is connected in series to the transistor 73 , and the relay coil 75 is supplied with power smoothed by a capacitor 77 via a full-wave rectifier circuit 62 and a diode 76 . to relay 74. When the relay coil 75 is energized, the purchase switch 512 is made conductive to energize the discharge lamp Ll, and the relay coil 75 turns on the M
When it is magnetized, the negative switch S2 is cut off to turn off the discharge lamp L.
Turn off the l.

The time failure caused by the resistor 66 and capacitor 67 of the time constant circuit 65 is caused by the receiving circuits Al, A2. Each A3 is different,
Time limit mal, W2. V3 (see FIG. 6) corresponds to K-υ, and these time limits W1, W2 . What signal is sent to W3 in each receiving circuit At?

A2. When given from the buffer 64 of A3, each receiving circuit AI, A2 . The level valve υ circuit 68 of A3 is used to perform the discrimination operation.

Switches Sl, S2 . The operation when none of S3 is operated will be explained. The output waveform from the full-wave rectifier circuit 61 in the receiving circuit AIK is shown in FIG. 8+31, and the output waveform from the buffer 64 is shown in FIG. When the polarity of the output of the buffer 64i is reversed, that is, t
J (When the number is zero and 180, a low level pulse is derived. When the circuit is 65 #, Fig. 8 + 31 K
A high level signal as shown is derived. As a result, a low level signal 8 is derived from the level discrimination circuit 68 [, 188 as shown in figure (4), and therefore the output from the AND gate 69 to line 70 is as shown in figure s8 (
5) remains at a low level, which is disappointing.

Referring to Figure 9, it is assumed that the switch Sl of the transmitting circuit 19 is turned off. The output waveform from the full-wave rectifier circuit 61 in the receiving <ta circuit AIK is a pulse p that is at a low level for a time limit Wl, as shown by Il+ in FIG.
Contains l. In this'@9 figure/ll, sui yf8
2, the pulse p2. obtained when S3 is operated.
p3 and its opposite (1')/<Rus p21.
p31 is also shown.

As a result, the signal applied to the buffer 64 and the time constant circuit 65 becomes as shown in FIG. 121. The level discrimination circuit 68 discriminates the level of the output from the timer circuit 65 shown in the ninth section at level l, and outputs a signal having a waveform shown in FIG. 141 onto a line 99. As a result, a pulse shown by tb+ in FIG. 189 is derived in the monostable circuit 98. The time-limited opening W4 of the monostable circuit 98 is larger than the pulse width of the pulse pH output from the level discrimination circuit #l1I68, and is significantly smaller than the pulse width of the pulses p21 and I)31. This causes AND gate 69 to derive a pulse on line 70 having the waveform shown in Figure 9, 6). Therefore, 7 lips, 7 u tubes, 7.1 female fixed conditions are @
9) as shown in FIG. 17), the switching spoon of the load switch Sll deteriorates, and the energization state of the discharge lamp Ll deteriorates.

Referring to FIG. 1O, discharge lamps Ll, L2. In order to control one of L3, for example Ll, the control switch 16 is controlled by the g circuit 19, and power having the voltage waveform shown in the diagram Ill is supplied between lines 17 and 18. Assume that the instantaneous open wt/'i shown by I'll in FIG. 1O is equal to the time limit fftlW1 when the discharge lamp Ll is controlled. A voltage shown in FIG. 121 is applied across Ll.

When the first switch 16 is cut off, the discharge lamp Ll
The voltage VPI generated at the FIJ terminal is the maximum voltage 11IV that occurs when the control switch remains conductive.
Compared to P2, non'/IK is higher than that of discharge lamp L.
There is a risk that the light will disappear.

The phenomenon of causing the discharge lamp Ll to go out was obtained through the inventor's experience as shown in FIG. 11. 11th
The figure shows the start phase of momentary interruption of the voltage of AC power supply l, that is, the first
The phase indicated by the reference symbol θ in FIG. 111 and its momentary interruption W
Showing the ceramic body. Line 91 has a rated voltage of 200V, 4
00W and Enoshita'-Kosha product name 4002HA-8
Shows the characteristics of water and silver stroke. Line 92t'i, 360W
This shows the characteristics of a high-pressure sodium lamp. AC II source l is 60
It is Hz.

Referring to this graph, the instantaneous interruption start phase θ is the coil 9
It can be seen that when using the slow phase type ballast 97 consisting of 0 and a capacitor 96, it is difficult for the discharge lamp to go out in the range of 60 to 120 degrees.

In the present invention, a slow phase type stable -97 is used, and the instantaneous interruption start phase of the switch 16 is set in the range of 60 to 120 degrees,
The momentary interruption W#:t is selected to be less than about 30 B sec, for example, when the load Ll is a mercury lamp. The mercury lamps Ll, L2 . L3 is prevented from disappearing.

Fig. 12 shows another embodiment of the uninvented mercury lamp LIK
FIG. 7 is an electrical circuit diagram in the case where a phase-leading type ballast 95 consisting of a coil 93 and a capacitor 94 is used in series. According to the inventor's experiments, when this more advanced phase ballast is used, the AC power supply l shown in Fig. 13 is 1 fcrt.
The instantaneous interruption start phase θ is selected in the range of 16 υ to υ degrees for 1 pressure. As a result, the four-light Ll using the phase advance type ballast 95 will not go out due to a momentary interruption of the control switch 16.

As described above, according to the present invention 14), the load supplied by the four power sources through the control switch is controlled by temporarily cutting off the control switch, so that the load supplied with the four power is controlled by the control switch. The discharge lamp connected to the source side is an
The present invention eliminates the possibility of erroneous octopus production as in the prior art described above. In addition, the control switch is activated instantaneously at a time or time related to the phase of the output of the AC UL power supply, and the operation of such a control switch can be performed by a relatively simple circuit control by the V engineering electronic circuit. 13T& is what can be realized and improve the masterpiece quality. Furthermore, even if the control switch is momentarily cut off due to i1+IJd of the discharge lamp, the lit discharge lamp is prevented from going out.

[Brief explanation of the drawing]

Figures 1 and 2 are block diagrams each showing the preceding fft technique, and Figure 3 is a block diagram of an example of the present invention.
Fig. 4 is a block diagram showing the specific configuration of the transmitting circuit 19 and Lurie switch 16 in Fig. 3, Fig. 5 is a waveform diagram for explaining the operation of the transmitting circuit 19, and Fig. 6 is a monostable circuit. 7 is a block diagram showing the specific configuration of the receiver circuit A1, and FIGS. 8 and 9 are waveform diagrams for explaining the operation of the receiver circuit A1. Figure 1 is a waveform diagram for explaining one operation when using the slow phase ballast 97.
Figure 812 is a graph showing the results of the inventor's test, Figure 812 is a partial electric circuit diagram of the embodiment of the pond of the present invention, and Figure 13 is the first
When the ballast 95 of Shinsosugi shown in Fig. 2 is removed, KL-keruhon f
It is a waveform diagram showing the f-setter's test book button. l...AC power supply, 16...control switch, 19...
・Transmission circuit, AI, A2, A3...Reception circuit, L
l-L3...Discharge lamp, S12.522.532.j
a What switch, 95...Shinsosugi ballast, 97...
Slow phase type ballast agent Patent attorney Shikyo Kei Part 1m Figure 2 Electricity 1 Voltage Nol1lIII! r start phase (deg) 12th
Figure 7 Figure 13

Claims (1)

[Claims] Power is supplied from the AC power supply to the load via a common control switch and load switches for each discharge lamp, and the control switch is connected to the phase of the output of the AC power supply for each discharge lamp for a period of time. Or instantaneously shredded by the transmitting circuit at the time, the receiving circuit controls the switch! The switching time of the load switch connected to the corresponding discharge lamp by detecting all llr time or cut-off time! il yomata s =+
The cut-off time described in J and the continuous cut-off time in e are based on the discharge lamp lighting device that is based on the fact that the lit discharge lamp does not go out.