JPH02115179U - - Google Patents
Info
- Publication number
- JPH02115179U JPH02115179U JP2490689U JP2490689U JPH02115179U JP H02115179 U JPH02115179 U JP H02115179U JP 2490689 U JP2490689 U JP 2490689U JP 2490689 U JP2490689 U JP 2490689U JP H02115179 U JPH02115179 U JP H02115179U
- Authority
- JP
- Japan
- Prior art keywords
- operational amplifier
- converter
- resistors
- input
- connection point
- 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 2
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の一実施例の回路図、第２図は
従来のＤＣ−ＤＣ変換装置の回路図である。
１……入力電源、２……ＤＣ−ＤＣ変換器、３
……負荷、４，５……オペアンプ、６〜１０，１
２……抵抗、１１……基準電源。
FIG. 1 is a circuit diagram of an embodiment of the present invention, and FIG. 2 is a circuit diagram of a conventional DC-DC converter. 1...Input power supply, 2...DC-DC converter, 3
...Load, 4,5...Operational amplifier, 6-10,1
2...Resistor, 11...Reference power supply.
Claims (1)
をオペアンプで検出するＤＣ−ＤＣ変換装置にお
いて、前記ＤＣ−ＤＣ変換器の出力電圧の両端に
第１及び第２及び第３の抵抗を直列に接続し、第
１及び第２の抵抗の接続点を低電圧検出用の第１
のオペアンプの一方の入力に接続し、第２及び第
３の抵抗の接続点を過電圧検出用の第２のオペア
ンプの一方の入力に接続し、基準電源の出力を第
１及び第２のオペアンプのそれぞれ他方の入力に
接続することを特徴とするＤＣ−ＤＣ変換装置。 In a DC-DC converter that detects overvoltage and undervoltage of an output voltage of a DC-DC converter using an operational amplifier, first, second, and third resistors are connected in series across the output voltage of the DC-DC converter. and connect the connection point of the first and second resistors to the first resistor for low voltage detection.
The connection point of the second and third resistors is connected to one input of the second operational amplifier for overvoltage detection, and the output of the reference power supply is connected to one input of the operational amplifier of the first and second operational amplifier. A DC-DC conversion device characterized in that each is connected to the input of the other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2490689U JPH02115179U (en) | 1989-03-03 | 1989-03-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2490689U JPH02115179U (en) | 1989-03-03 | 1989-03-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02115179U true JPH02115179U (en) | 1990-09-14 |
Family
ID=31245164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2490689U Pending JPH02115179U (en) | 1989-03-03 | 1989-03-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02115179U (en) |
-
1989
- 1989-03-03 JP JP2490689U patent/JPH02115179U/ja active Pending