JPS6274494U - - Google Patents

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Publication number
JPS6274494U
JPS6274494U JP16512785U JP16512785U JPS6274494U JP S6274494 U JPS6274494 U JP S6274494U JP 16512785 U JP16512785 U JP 16512785U JP 16512785 U JP16512785 U JP 16512785U JP S6274494 U JPS6274494 U JP S6274494U
Authority
JP
Japan
Prior art keywords
overcurrent detection
output
secondary windings
detection circuit
detection means
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.)
Pending
Application number
JP16512785U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP16512785U priority Critical patent/JPS6274494U/ja
Publication of JPS6274494U publication Critical patent/JPS6274494U/ja
Pending legal-status Critical Current

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  • Protection Of Static Devices (AREA)
  • Dc-Dc Converters (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は、本考案の多出力スイツチングレギユ
レータの回路図で、第２図は、従来の多出力スイ
ツチングレギユレータの回路図である。 ３……出力変圧器、４……１次巻線、５，６…
…２次巻線、７……トランジスタ、８，９……ダ
イオード、１０，１１……コンデンサ、１４，１
５……負荷、１８……制御回路、１９，２０……
抵抗、２１……過電流検出回路、２２，２３……
ダイオード、２４，２５……抵抗、２６……基準
電圧電源、Ｃ……比較器。 FIG. 1 is a circuit diagram of a multi-output switching regulator of the present invention, and FIG. 2 is a circuit diagram of a conventional multi-output switching regulator. 3... Output transformer, 4... Primary winding, 5, 6...
...Secondary winding, 7...Transistor, 8,9...Diode, 10,11...Capacitor, 14,1
5...Load, 18...Control circuit, 19, 20...
Resistor, 21... Overcurrent detection circuit, 22, 23...
Diode, 24, 25...Resistor, 26...Reference voltage power supply, C...Comparator.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 出力変圧器の１次巻線にスイツチング素子を接
続し、前記出力変圧器に複数の２次巻線を設ける
と共に、前記２次巻線の各々に過電流検出手段を
接続し、該過電流検出手段から得られる信号に基
いて過電流検出回路を動作させ前記スイツチング
素子を制御して前記複数の２次巻線からの出力電
流を制限する多出力スイツチングレギユレータに
おいて、前記過電流検出手段から得られる各々の
信号をダイオードを介して共通に印加する一方の
入力端子と、基準電圧を印加する他方の入力端子
とを有する比較器を前記過電流検出回路に設けた
ことを特徴とする多出力スイツチングレギユレー
タ。 A switching element is connected to a primary winding of an output transformer, a plurality of secondary windings are provided to the output transformer, and an overcurrent detection means is connected to each of the secondary windings to detect the overcurrent. In the multi-output switching regulator, the overcurrent detection means operates an overcurrent detection circuit based on a signal obtained from the overcurrent detection means to control the switching element to limit the output current from the plurality of secondary windings. The overcurrent detection circuit is provided with a comparator having one input terminal to which respective signals obtained from the overcurrent detection circuit are commonly applied via a diode, and the other input terminal to which a reference voltage is applied. Output switching regulator.
JP16512785U 1985-10-29 1985-10-29 Pending JPS6274494U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16512785U JPS6274494U (en) 1985-10-29 1985-10-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16512785U JPS6274494U (en) 1985-10-29 1985-10-29

Publications (1)

Publication Number Publication Date
JPS6274494U true JPS6274494U (en) 1987-05-13

Family

ID=31094874

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16512785U Pending JPS6274494U (en) 1985-10-29 1985-10-29

Country Status (1)

Country Link
JP (1) JPS6274494U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0217860A (en) * 1988-07-06 1990-01-22 Sony Corp Switching power supply device
JP2011151935A (en) * 2010-01-21 2011-08-04 Ricoh Co Ltd Power supply device, electric apparatus, and image forming apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5688516A (en) * 1979-12-21 1981-07-18 Fujitsu Ltd Control circuit for voltage droop of multiple-output constant-voltage power source

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5688516A (en) * 1979-12-21 1981-07-18 Fujitsu Ltd Control circuit for voltage droop of multiple-output constant-voltage power source

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0217860A (en) * 1988-07-06 1990-01-22 Sony Corp Switching power supply device
JP2011151935A (en) * 2010-01-21 2011-08-04 Ricoh Co Ltd Power supply device, electric apparatus, and image forming apparatus

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