JPH01127384U - - Google Patents
Info
- Publication number
- JPH01127384U JPH01127384U JP2244388U JP2244388U JPH01127384U JP H01127384 U JPH01127384 U JP H01127384U JP 2244388 U JP2244388 U JP 2244388U JP 2244388 U JP2244388 U JP 2244388U JP H01127384 U JPH01127384 U JP H01127384U
- Authority
- JP
- Japan
- Prior art keywords
- converter
- output voltage
- control circuit
- pulse width
- width modulation
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Dc-Dc Converters (AREA)
Description
第１図は本考案の一実施例を示す回路図、第２
図は従来の出力電圧制御回路の回路図である。
１，２……入力端子、３……ＤＣ―ＤＣコンバ
ータ、４……スイツチ駆動回路、５……ＰＷＭ用
ＩＣ、６……出力電圧検出回路、７……オペアン
プ、８……参照電圧源、９，１０……抵抗、１１
……ハイレベル出力端子、１２……ローレベル出
力端子。
Figure 1 is a circuit diagram showing one embodiment of the present invention;
The figure is a circuit diagram of a conventional output voltage control circuit. 1, 2... Input terminal, 3... DC-DC converter, 4... Switch drive circuit, 5... PWM IC, 6... Output voltage detection circuit, 7... Operational amplifier, 8... Reference voltage source, 9, 10...Resistance, 11
...High level output terminal, 12...Low level output terminal.
Claims (1)
路と、ＤＣ―ＤＣコンバータの出力電圧を検出し
検出結果を前記パルス幅変調用制御回路に出力す
る出力電圧検出回路とを有する、パルス幅変調方
式のＤＣ―ＤＣコンバータの出力電圧制御回路に
おいて、 ＤＣ―ＤＣコンバータのハイレベル出力電位を
、前記パルス幅変調用制御回路の基準電位とし、
ＤＣ―ＤＣコンバータのローレベル出力電位を、
前記出力電圧検出回路の基準電位としたことを特
徴とする出力電圧制御回路。[Claims for Utility Model Registration] A control circuit for pulse width modulation of a DC-DC converter, and an output voltage detection circuit that detects the output voltage of the DC-DC converter and outputs the detection result to the control circuit for pulse width modulation. In the output voltage control circuit of a pulse width modulation DC-DC converter, the high-level output potential of the DC-DC converter is set as a reference potential of the pulse width modulation control circuit,
The low level output potential of the DC-DC converter is
An output voltage control circuit characterized in that the reference potential of the output voltage detection circuit is used as a reference potential.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2244388U JPH069582Y2 (en) | 1988-02-24 | 1988-02-24 | Output voltage control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2244388U JPH069582Y2 (en) | 1988-02-24 | 1988-02-24 | Output voltage control circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01127384U true JPH01127384U (en) | 1989-08-31 |
| JPH069582Y2 JPH069582Y2 (en) | 1994-03-09 |
Family
ID=31240571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2244388U Expired - Lifetime JPH069582Y2 (en) | 1988-02-24 | 1988-02-24 | Output voltage control circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH069582Y2 (en) |
-
1988
- 1988-02-24 JP JP2244388U patent/JPH069582Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH069582Y2 (en) | 1994-03-09 |
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