JPS61107016U - - Google Patents
Info
- Publication number
- JPS61107016U JPS61107016U JP19270284U JP19270284U JPS61107016U JP S61107016 U JPS61107016 U JP S61107016U JP 19270284 U JP19270284 U JP 19270284U JP 19270284 U JP19270284 U JP 19270284U JP S61107016 U JPS61107016 U JP S61107016U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- conversion circuit
- level mode
- voltage conversion
- semiconductor element
- 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
- 238000006243 chemical reaction Methods 0.000 claims 4
- 239000004065 semiconductor Substances 0.000 claims 3
- 229920006395 saturated elastomer Polymers 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
Description
第１図はこの考案に係る出力電圧切換電源の一
実施例を示すブロツク回路構成図、第２図は従来
の出力電圧切換電源の構成を示すブロツク回路図
である。
Ｐｓ…直流電圧源、Ｔ…トランス、Ｅ１，Ｅ２
…基準電圧源、Ａ１，Ａ２…誤差増幅器、ＶＲ１
，ＶＲ２…レベル調整用可変抵抗、ＶＣ…電圧制
御回路、Ｑ１〜Ｑ３…トランジスタ、Ｃ２，Ｃ３
…出力コンデンサ。
FIG. 1 is a block circuit diagram showing an embodiment of the output voltage switching power supply according to the present invention, and FIG. 2 is a block circuit diagram showing the configuration of a conventional output voltage switching power supply. Ps...DC voltage source, T...Transformer, E1, E2
...Reference voltage source, A1, A2...Error amplifier, VR1
, VR2...variable resistor for level adjustment, VC...voltage control circuit, Q1-Q3...transistor, C2, C3
...output capacitor.
Claims (1)
この電圧変換回路の出力レベルを安定化するスイ
ツチングレギユレータと、前記電圧変換回路の出
力電圧を外部切換信号に応じてハイレベルモード
及びローレベルモードに選択的に切換えるための
スイツチ回路と、前記電圧変換回路の出力端にス
イツチング用半導体素子を接続し、前記スイツチ
回路がハイレベルモードに設定されるとき前記半
導体素子を飽和状態に駆動制御し、前記スイツチ
回路がローレベルモードに設定されるとき前記半
導体素子をシリーズレギユレータとして駆動制御
する制御回路とを具備したことを特徴とする出力
電圧切換電源。 A voltage conversion circuit that converts input voltage to high voltage,
a switching regulator that stabilizes the output level of the voltage conversion circuit; a switch circuit that selectively switches the output voltage of the voltage conversion circuit between a high level mode and a low level mode in accordance with an external switching signal; A switching semiconductor element is connected to the output terminal of the voltage conversion circuit, and the semiconductor element is driven and controlled to a saturated state when the switch circuit is set to a high level mode, and the switch circuit is set to a low level mode. An output voltage switching power supply comprising: a control circuit for driving and controlling the semiconductor element as a series regulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19270284U JPS61107016U (en) | 1984-12-19 | 1984-12-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19270284U JPS61107016U (en) | 1984-12-19 | 1984-12-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61107016U true JPS61107016U (en) | 1986-07-07 |
Family
ID=30750109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19270284U Pending JPS61107016U (en) | 1984-12-19 | 1984-12-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61107016U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01166485U (en) * | 1988-05-09 | 1989-11-21 | ||
| WO2006013737A1 (en) * | 2004-08-06 | 2006-02-09 | Rohm Co., Ltd | Control circuit of switching regulator, and power source device and electronic device using the control circuit |
-
1984
- 1984-12-19 JP JP19270284U patent/JPS61107016U/ja active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01166485U (en) * | 1988-05-09 | 1989-11-21 | ||
| WO2006013737A1 (en) * | 2004-08-06 | 2006-02-09 | Rohm Co., Ltd | Control circuit of switching regulator, and power source device and electronic device using the control circuit |
| JP2006050843A (en) * | 2004-08-06 | 2006-02-16 | Rohm Co Ltd | Control circuit, power supply unit using the control circuit, and electronic equipment |
| JP4551155B2 (en) * | 2004-08-06 | 2010-09-22 | ローム株式会社 | Control circuit, power supply device using the control circuit, and electronic device |