JPH0158292U - - Google Patents
Info
- Publication number
- JPH0158292U JPH0158292U JP15364087U JP15364087U JPH0158292U JP H0158292 U JPH0158292 U JP H0158292U JP 15364087 U JP15364087 U JP 15364087U JP 15364087 U JP15364087 U JP 15364087U JP H0158292 U JPH0158292 U JP H0158292U
- Authority
- JP
- Japan
- Prior art keywords
- switching
- pulse width
- output voltage
- input voltage
- switching means
- 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 1
- 238000010586 diagram Methods 0.000 description 3
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
図は従来の構成を示す回路図である。
１……パルス幅変調回路、２……ＤＣ―ＤＣコ
ンバータ、３……基準電圧（入力電圧）切換回路
、４……帰還量切換回路、Ｖｒｅｆ……直流基準
（入力）電圧、Ｑ１，Ｑ２……トランジスタスイ
ツチ。
Figure 1 is a circuit diagram showing one embodiment of the present invention, Figure 2 is a circuit diagram showing an embodiment of the present invention.
The figure is a circuit diagram showing a conventional configuration. 1... Pulse width modulation circuit, 2... DC-DC converter, 3... Reference voltage (input voltage) switching circuit, 4... Feedback amount switching circuit, Vref... DC reference (input) voltage, Q 1 , Q 2 ...Transistor switch.
Claims (1)
幅変調し、その直流出力電圧を負帰還するように
したＤＣ―ＤＣコンバータにおいて、前記パルス
幅変換回路に与える直流入力電圧を切換える入力
電圧切換手段と、前記負帰還の帰還量を切換える
帰還量切換手段とを備え、前記各切換手段により
直流出力電圧を切換えるように構成したことを特
徴とするＤＣ―ＤＣコンバータの出力電圧切換回
路。 In a DC-DC converter in which a DC input voltage is pulse width modulated by a pulse width modulation circuit and the DC output voltage is negatively fed back, an input voltage switching means for switching a DC input voltage applied to the pulse width conversion circuit; 1. An output voltage switching circuit for a DC-DC converter, comprising feedback amount switching means for switching a feedback amount of negative feedback, and configured such that each of the switching means switches a DC output voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15364087U JPH0158292U (en) | 1987-10-06 | 1987-10-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15364087U JPH0158292U (en) | 1987-10-06 | 1987-10-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0158292U true JPH0158292U (en) | 1989-04-12 |
Family
ID=31429665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15364087U Pending JPH0158292U (en) | 1987-10-06 | 1987-10-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0158292U (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5824924A (en) * | 1981-08-07 | 1983-02-15 | Nec Corp | Digital control stabilized power supply |
| JPS59144366A (en) * | 1983-01-31 | 1984-08-18 | Sanken Electric Co Ltd | Switching regulator |
| JPS59144368A (en) * | 1983-02-08 | 1984-08-18 | Ricoh Co Ltd | stabilized power supply |
| JPS6249525A (en) * | 1985-08-29 | 1987-03-04 | Fujitsu Ltd | Voltage setting circuit |
-
1987
- 1987-10-06 JP JP15364087U patent/JPH0158292U/ja active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5824924A (en) * | 1981-08-07 | 1983-02-15 | Nec Corp | Digital control stabilized power supply |
| JPS59144366A (en) * | 1983-01-31 | 1984-08-18 | Sanken Electric Co Ltd | Switching regulator |
| JPS59144368A (en) * | 1983-02-08 | 1984-08-18 | Ricoh Co Ltd | stabilized power supply |
| JPS6249525A (en) * | 1985-08-29 | 1987-03-04 | Fujitsu Ltd | Voltage setting circuit |