JPH01175311U - - Google Patents
Info
- Publication number
- JPH01175311U JPH01175311U JP6928988U JP6928988U JPH01175311U JP H01175311 U JPH01175311 U JP H01175311U JP 6928988 U JP6928988 U JP 6928988U JP 6928988 U JP6928988 U JP 6928988U JP H01175311 U JPH01175311 U JP H01175311U
- Authority
- JP
- Japan
- Prior art keywords
- control element
- voltage control
- output voltage
- voltage
- detection circuit
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Control Of Electrical Variables (AREA)
Description
第１図はこの考案に係る電源回路の実施例を示
した回路図、第２図は従来例の回路図である。
主な符号、番号の説明、１：入力端子、２：出
力端子、Ｑ１：電圧制御用トランジスタ、Ｑ２：
スイツチングトランジスタ、Ｑ３：電圧検出用ト
ランジスタ、Ｄ１：ツエナーダイオード、Ｄ２：
放電防止用ダイオード、ＲＬ：負荷、Ｖｉ：入力
電圧、ＶＯ：出力電圧、ＶＺ：ツエナー電圧、Ｖ
Ｆ：順方向電圧、Ｉ：出力電流。
FIG. 1 is a circuit diagram showing an embodiment of the power supply circuit according to this invention, and FIG. 2 is a circuit diagram of a conventional example. Explanation of main symbols and numbers: 1: Input terminal, 2: Output terminal, Q1: Voltage control transistor, Q2:
Switching transistor, Q3: Voltage detection transistor, D1: Zener diode, D2:
Discharge prevention diode, RL: load, Vi: input voltage, VO: output voltage, VZ: Zener voltage, V
F: forward voltage, I: output current.
Claims (1)
定電圧電源回路において、 出力電圧制御素子の降下電圧を検出する検出回
路と、この検出回路によつて電源回路の入力端子
と出力端子を結合するスイツチング回路とで構成
したことを特徴とする電源回路。[Scope of Claim for Utility Model Registration] In a constant voltage power supply circuit composed of an output voltage control element and a reference voltage element, there is a detection circuit for detecting the voltage drop of the output voltage control element, and a detection circuit that detects the voltage drop of the output voltage control element, and a detection circuit that detects the voltage drop of the output voltage control element. A power supply circuit comprising a switching circuit that connects a terminal and an output terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6928988U JPH01175311U (en) | 1988-05-27 | 1988-05-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6928988U JPH01175311U (en) | 1988-05-27 | 1988-05-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01175311U true JPH01175311U (en) | 1989-12-13 |
Family
ID=31294570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6928988U Pending JPH01175311U (en) | 1988-05-27 | 1988-05-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01175311U (en) |
-
1988
- 1988-05-27 JP JP6928988U patent/JPH01175311U/ja active Pending
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