JPH0260484U - - Google Patents
Info
- Publication number
- JPH0260484U JPH0260484U JP13883388U JP13883388U JPH0260484U JP H0260484 U JPH0260484 U JP H0260484U JP 13883388 U JP13883388 U JP 13883388U JP 13883388 U JP13883388 U JP 13883388U JP H0260484 U JPH0260484 U JP H0260484U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- power supply
- supply circuit
- flyback transformer
- error
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Television Receiver Circuits (AREA)
- Dc-Dc Converters (AREA)
Description
第１図は本考案を実施した電源回路の回路図で
ある。第２図、第３図はいずれも従来例の回路図
である。
２０……スイツチング電源回路、２４……スイ
ツチングトランジスタ、３１……フライバツクト
ランス、４２……フオトカプラ、ＺＤ……ツエナ
ーダイオード、Ｑ１，Ｑ２，Ｑ３……第１、第２
、第３トランジスタ。
FIG. 1 is a circuit diagram of a power supply circuit implementing the present invention. Both FIGS. 2 and 3 are circuit diagrams of conventional examples. 20...Switching power supply circuit, 24...Switching transistor, 31...Flyback transformer, 42...Photocoupler, ZD...Zener diode, Q1 , Q2 , Q3 ...First, second
, third transistor.
Claims (1)
回路の出力電圧を動作電源電圧とするフライバツ
クトランスと、該フライバツクトランスの負荷に
電力を供給したときのフライバツクトランスの出
力電圧を基準電圧と比較して誤差電圧を発生する
比較手段と、前記誤差電圧を制御電圧として前記
スイツチング電源回路を与える手段と、から成る
電源回路。 A switching power supply circuit, a flyback transformer whose operating power supply voltage is the output voltage of the switching power supply circuit, and an error by comparing the output voltage of the flyback transformer with a reference voltage when power is supplied to the load of the flyback transformer. A power supply circuit comprising comparison means for generating a voltage, and means for applying the error voltage to the switching power supply circuit using the error voltage as a control voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13883388U JPH0260484U (en) | 1988-10-25 | 1988-10-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13883388U JPH0260484U (en) | 1988-10-25 | 1988-10-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0260484U true JPH0260484U (en) | 1990-05-02 |
Family
ID=31401539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13883388U Pending JPH0260484U (en) | 1988-10-25 | 1988-10-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0260484U (en) |
-
1988
- 1988-10-25 JP JP13883388U patent/JPH0260484U/ja active Pending