JPS5743568A - Switching power source circuit - Google Patents

Switching power source circuit

Info

Publication number
JPS5743568A
JPS5743568A JP11752280A JP11752280A JPS5743568A JP S5743568 A JPS5743568 A JP S5743568A JP 11752280 A JP11752280 A JP 11752280A JP 11752280 A JP11752280 A JP 11752280A JP S5743568 A JPS5743568 A JP S5743568A
Authority
JP
Japan
Prior art keywords
noise
transformer
prevented
power source
switching power
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP11752280A
Other languages
Japanese (ja)
Other versions
JPS627770B2 (en
Inventor
Akio Koizumi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP11752280A priority Critical patent/JPS5743568A/en
Publication of JPS5743568A publication Critical patent/JPS5743568A/en
Publication of JPS627770B2 publication Critical patent/JPS627770B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of DC power input into DC power output
    • H02M3/22—Conversion of DC power input into DC power output with intermediate conversion into AC
    • H02M3/24—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters
    • H02M3/28—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC
    • H02M3/325—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)
  • Power Conversion In General (AREA)

Abstract

PURPOSE:To obtain steady operational characteristics without malfunctioning, by a method wherein an external noise preventing filter and a switching noise preventing filter are provided to the input side of the circuit. CONSTITUTION:Normal noise of switching noise is prevented by a transformer 5, a coil 6 and capacitors 11, 12. The normal noise of the external noise is prevented by the transformer 5 and the capacitor 11. Common noise of the switching noise and the external noise are prevented by the transformer 5 and capacitors 9, 11. The input voltage is divided by resistors 13, 14 before the time constant circuit with the coil 6 and the capacitor 12. The devided voltage is supplied to a pulse width limiting circuit 15 as an input signal.
JP11752280A 1980-08-26 1980-08-26 Switching power source circuit Granted JPS5743568A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11752280A JPS5743568A (en) 1980-08-26 1980-08-26 Switching power source circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11752280A JPS5743568A (en) 1980-08-26 1980-08-26 Switching power source circuit

Publications (2)

Publication Number Publication Date
JPS5743568A true JPS5743568A (en) 1982-03-11
JPS627770B2 JPS627770B2 (en) 1987-02-19

Family

ID=14713852

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11752280A Granted JPS5743568A (en) 1980-08-26 1980-08-26 Switching power source circuit

Country Status (1)

Country Link
JP (1) JPS5743568A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5992588U (en) * 1982-12-14 1984-06-23 株式会社京三製作所 Switching regulator circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5992588U (en) * 1982-12-14 1984-06-23 株式会社京三製作所 Switching regulator circuit

Also Published As

Publication number Publication date
JPS627770B2 (en) 1987-02-19

Similar Documents

Publication Publication Date Title
EP0032737A3 (en) Electrical filter circuit using at least one simulated inductance, comprising controlled switches, capacitors and amplifiers
JPS5789325A (en) Method of removing influence of intrinsic offset voltage and voltage comparator
JPS5785110A (en) Dc stabilized power supply circuit
SE7611979L (en) ELECTRONIC FILTER CIRCUIT
JPS5743568A (en) Switching power source circuit
JPS5748826A (en) Circuit for converting input pulse duty ratio into analog voltage
JPS56103532A (en) Power supply device
JPS5648186A (en) Photodetector
JPS5672523A (en) Shaping method of signal waveform
JPS5715573A (en) Afc circuit
JPS56110406A (en) Filter device for electric vehicle
JPS5546881A (en) Inverter
JPS56156012A (en) Phase shifter
JPS5395553A (en) Capacitance circuit
JPS55147835A (en) Frequency dividing circuit
JPS5423462A (en) Timer circuit
JPS55120368A (en) Overvoltage suppression circuit of transistor chopper
JPS55141832A (en) Phase synchronous circuit
JPS5787618A (en) Switched capacitor filter
JPS5676662A (en) Pulse reception circuit
JPS6443063A (en) Switching drive circuit
JPS5615181A (en) Motor drive circuit
JPS55105711A (en) Power supply unit
JPS5583321A (en) Filter available for selective variation in frequency characteristic
JPS5615934A (en) Electrospark machining device