JPS59126590U - Auxiliary power supply circuit for switching regulator - Google Patents
Auxiliary power supply circuit for switching regulatorInfo
- Publication number
- JPS59126590U JPS59126590U JP1792883U JP1792883U JPS59126590U JP S59126590 U JPS59126590 U JP S59126590U JP 1792883 U JP1792883 U JP 1792883U JP 1792883 U JP1792883 U JP 1792883U JP S59126590 U JPS59126590 U JP S59126590U
- Authority
- JP
- Japan
- Prior art keywords
- rectifying
- output
- switching
- power supply
- transformer
- 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
Links
Landscapes
- Protection Of Static Devices (AREA)
- Dc-Dc Converters (AREA)
- Power Conversion In General (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のスイッチング・レギュレータの補助電源
供給回路の例を示す図、第２図は本考案の１実施例を示
す図である。
１・・・・・・スイッチング・コントロール回路、■Ｔ
１・・・・・・出カドランス、ＶＴ２・・・・・・商用
トランス、ＲＦｌとＲＦ２・・・・・・整流回路、ＴＲ
１ないしＴＲ３・・・・・・トランジスタ、Ｒ１ないし
Ｒ６・・・・・・抵抗、Ｃ１ないしＣ４・・・・・・コ
ンデンサ、ＤｌないしＲ５・・・・・・ダイオード、Ｌ
・・・・・・リアクトル、ｚＤ・・・・・・ツェナーダ
イオード。FIG. 1 is a diagram showing an example of a conventional auxiliary power supply circuit for a switching regulator, and FIG. 2 is a diagram showing an embodiment of the present invention. 1...Switching control circuit, ■T
1... Output transformer, VT2... Commercial transformer, RFl and RF2... Rectifier circuit, TR
1 to TR3...Transistor, R1 to R6...Resistor, C1 to C4...Capacitor, Dl to R5...Diode, L
...Reactor, zD...Zener diode.
Claims (1)
イッチングするスイッチング手段、上記出カドランスの
二次側出力を整流平滑する整流平滑手段、上記スイッチ
ング手段のスイッチングを制御する制御手段、及び−次
側に商用電源が供給される商用トランスと該商用トラン
スの二次側出力を整流する整流手段と該整流手段の出力
を上記制御手段に供給するための第１の整流素子と上記
整流平滑手段の出力を上記制御手段に供給するための第
２の整流素子とを有する補助電源供給回路を備えたスイ
ッチングレギュレータにおいて、上記補助電源供給回路
は、上記整流手段と上記第１の整流素子との間に接続さ
れるスイッチング素子、上記整流手段の出力により上記
スイッチング素子に４通のためのバイアスを与えるバイ
アス手段、上記整流平滑手段の出力電圧が所定値に達し
たか否かを検出する電圧検出手段、及び該電圧検出手段
により上記出力電圧が所定値に達したことが検出される
と上記スイッチング素子を非導通にするようにバイアス
を制御するバイアス制御手段を有することを特徴とする
スイッチング・レギュレータの補助電源供給回路。an output transformer, a switching means for switching the power supply on the primary side of the output transformer, a rectifying and smoothing means for rectifying and smoothing the secondary side output of the output transformer, a control means for controlling switching of the switching means, and a - next side; A commercial transformer to which commercial power is supplied, a rectifying means for rectifying the secondary output of the commercial transformer, a first rectifying element for supplying the output of the rectifying means to the control means, and an output of the rectifying and smoothing means. In the switching regulator, the auxiliary power supply circuit is connected between the rectification means and the first rectification element. a switching element, biasing means for biasing the switching element for four times based on the output of the rectifying means, voltage detecting means for detecting whether the output voltage of the rectifying and smoothing means has reached a predetermined value; Auxiliary power supply for a switching regulator, comprising bias control means for controlling a bias so that the switching element becomes non-conductive when the voltage detection means detects that the output voltage reaches a predetermined value. circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1792883U JPS59126590U (en) | 1983-02-09 | 1983-02-09 | Auxiliary power supply circuit for switching regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1792883U JPS59126590U (en) | 1983-02-09 | 1983-02-09 | Auxiliary power supply circuit for switching regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59126590U true JPS59126590U (en) | 1984-08-25 |
Family
ID=30149150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1792883U Pending JPS59126590U (en) | 1983-02-09 | 1983-02-09 | Auxiliary power supply circuit for switching regulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59126590U (en) |
-
1983
- 1983-02-09 JP JP1792883U patent/JPS59126590U/en active Pending
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