JPS60104916U - power circuit - Google Patents
power circuitInfo
- Publication number
- JPS60104916U JPS60104916U JP19669783U JP19669783U JPS60104916U JP S60104916 U JPS60104916 U JP S60104916U JP 19669783 U JP19669783 U JP 19669783U JP 19669783 U JP19669783 U JP 19669783U JP S60104916 U JPS60104916 U JP S60104916U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- voltage
- power supply
- emitter
- collector
- 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
- Continuous-Control Power Sources That Use Transistors (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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の電源回路の結線図、第２図はこの考案の
電源回路の１実施例の結線図である。
１・・・交流電源ソケット、２・・・変圧器、３・・・
整流器、４・・・直流電源ソケット、５・・・切換スイ
ッチ、６・・・電源スィッチ、８・・・電源平滑用の第
２コンデンサ、９・・・直流出力端子、１０．１８・・
・第１、第２トランジスタ、１３・・・ツェナダイオー
ド、１６・・・モータ。FIG. 1 is a wiring diagram of a conventional power supply circuit, and FIG. 2 is a wiring diagram of one embodiment of the power supply circuit of this invention. 1... AC power socket, 2... Transformer, 3...
Rectifier, 4... DC power socket, 5... Selector switch, 6... Power switch, 8... Second capacitor for power supply smoothing, 9... DC output terminal, 10.18...
- First and second transistors, 13... Zener diode, 16... motor.
Claims (1)
滑した変換直流および電池などの電源直流を択一的に供
給するとともに、前記電圧安定化部の出力直流を第２の
負荷に供給する電源回路において、前記電圧安定化部に
、コレクタ、エミッタが前記第２の負荷に直列接続され
るとともに、ツェナダイオードなどにより形成された安
定化基準電圧にもとづきコレクタ、エミッタ間電圧が可
変制御され、前記変換直流の入力時に前記出力直流を定
電圧制御する第１トランジスタと、前記電流直流の入力
時にのみオンして前記第１トランジスタのコレクタ、エ
ミッタ間を短絡し、前記出力直流の定電圧制御を解除す
る第２トランジスタとを設けた電源回路。A first load and a voltage stabilizing section are selectively supplied with a converted direct current obtained by rectifying and smoothing a power supply alternating current and a power direct current such as a battery, and the output direct current of the voltage stabilizing section is supplied to a second load. In the power supply circuit, a collector and an emitter of the voltage stabilizing section are connected in series with the second load, and a voltage between the collector and the emitter is variably controlled based on a stabilizing reference voltage formed by a Zener diode or the like. a first transistor that controls the output DC at a constant voltage when the converted DC is input; and a first transistor that is turned on only when the current DC is input to short-circuit the collector and emitter of the first transistor to control the output DC at a constant voltage. A power supply circuit provided with a second transistor for canceling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19669783U JPS60104916U (en) | 1983-12-20 | 1983-12-20 | power circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19669783U JPS60104916U (en) | 1983-12-20 | 1983-12-20 | power circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60104916U true JPS60104916U (en) | 1985-07-17 |
Family
ID=30754541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19669783U Pending JPS60104916U (en) | 1983-12-20 | 1983-12-20 | power circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60104916U (en) |
-
1983
- 1983-12-20 JP JP19669783U patent/JPS60104916U/en active Pending
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