JPH0360878U - - Google Patents
Info
- Publication number
- JPH0360878U JPH0360878U JP11829089U JP11829089U JPH0360878U JP H0360878 U JPH0360878 U JP H0360878U JP 11829089 U JP11829089 U JP 11829089U JP 11829089 U JP11829089 U JP 11829089U JP H0360878 U JPH0360878 U JP H0360878U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- outputs
- supply circuit
- series
- output voltage
- 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
- Dc-Dc Converters (AREA)
Description
第１図は本考案による電源回路の一実施例を示
す回路図、第２図は従来の電源回路を示す回路図
である。
２…コンバータトランス、３ａ，３ｂ…一次側
巻線、３Ａ…二次側巻線、４…スイツチングトラ
ンジスタ、５…ベース電流制限抵抗、６…起動用
抵抗、７…制御回路、８ｂ，８ｃ…中間タツプ、
１２，１３，１４…整流用ダイオード、１５，１
６，１７…平滑用コンデンサ、２１…過電流保護
素子、Ｌ１，Ｌ２，Ｌ３…負荷。
FIG. 1 is a circuit diagram showing an embodiment of a power supply circuit according to the present invention, and FIG. 2 is a circuit diagram showing a conventional power supply circuit. 2...Converter transformer, 3a, 3b...Primary winding, 3A...Secondary winding, 4...Switching transistor, 5...Base current limiting resistor, 6...Starting resistor, 7...Control circuit, 8b, 8c... middle tap,
12, 13, 14... Rectifier diode, 15, 1
6, 17...Smoothing capacitor, 21...Overcurrent protection element, L1, L2, L3...Load.
Claims (1)
の一次側巻線に直列にスイツチング素子を接続し
、このスイツチング素子をオン・オフ動作させる
ことで中間タツプを設けた二次側巻線に電圧の異
なる複数の交流出力を発生させ、これら交流出力
を各整流および平滑回路によつてそれぞれ直流に
変換することで複数系統の直流出力を得るととも
に、直流出力電圧の変動を検出して上記スイツチ
ング素子を制御することで複数系統の直流出力電
圧の安定化を図るように構成された電源回路にお
いて、 複数系統の上記各整流および平滑回路の共通電
流経路に、過電流を検知して該共通電流経路を断
つ過電流保護手段を直列に接続したことを特徴と
する電源回路。[Claim for Utility Model Registration] A switching element is connected in series to the primary winding of a converter transformer to which input DC power is supplied, and this switching element is turned on and off to provide an intermediate tap on the secondary side. By generating multiple AC outputs with different voltages in the windings and converting these AC outputs to DC through each rectifier and smoothing circuit, multiple systems of DC output can be obtained, and fluctuations in the DC output voltage can be detected. In a power supply circuit configured to stabilize the DC output voltage of multiple systems by controlling the above-mentioned switching elements with A power supply circuit characterized in that overcurrent protection means for cutting off the common current path is connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11829089U JPH0360878U (en) | 1989-10-11 | 1989-10-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11829089U JPH0360878U (en) | 1989-10-11 | 1989-10-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0360878U true JPH0360878U (en) | 1991-06-14 |
Family
ID=31666466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11829089U Pending JPH0360878U (en) | 1989-10-11 | 1989-10-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0360878U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012016181A (en) * | 2010-07-01 | 2012-01-19 | Canon Inc | Power supply unit |
-
1989
- 1989-10-11 JP JP11829089U patent/JPH0360878U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012016181A (en) * | 2010-07-01 | 2012-01-19 | Canon Inc | Power supply unit |