JPH0196735U - - Google Patents
Info
- Publication number
- JPH0196735U JPH0196735U JP19162487U JP19162487U JPH0196735U JP H0196735 U JPH0196735 U JP H0196735U JP 19162487 U JP19162487 U JP 19162487U JP 19162487 U JP19162487 U JP 19162487U JP H0196735 U JPH0196735 U JP H0196735U
- Authority
- JP
- Japan
- Prior art keywords
- abnormality detection
- input signal
- circuit
- detection circuit
- comparator 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.)
- Granted
Links
- 230000005856 abnormality Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 230000002159 abnormal effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 1
Landscapes
- Dc-Dc Converters (AREA)
- Protection Of Static Devices (AREA)
Description
第１図は本考案の原理構成を示すブロツク図、
第２図ａは本考案の一実施例を示す回路図、第２
図ｂは本考案の動作の説明図、第３図は従来方法
の一例を示す回路図。
第１図において、１は異常検出回路、１１は第
１比較回路、１２は第２比較回路、２はスイツチ
ングレギユレータ、を示す。
Figure 1 is a block diagram showing the principle configuration of the present invention.
Figure 2a is a circuit diagram showing an embodiment of the present invention;
FIG. b is an explanatory diagram of the operation of the present invention, and FIG. 3 is a circuit diagram showing an example of a conventional method. In FIG. 1, 1 is an abnormality detection circuit, 11 is a first comparison circuit, 12 is a second comparison circuit, and 2 is a switching regulator.
Claims (1)
該異常検出回路１の出力信号によりスイツチング
を行い直流電圧を昇圧するスイツチングレギユレ
ータ２を有する電源装置において、 前記異常検出回路１は、前記入力信号と所定の
基準電圧とを比較する手段を有した第１比較回路
１１と、該第１比較回路１１の出力電圧と前記入
力信号とを比較する手段を有した第２比較回路１
２とを備え、 該入力信号が異常となつたことに応じて、第２
比較回路１２の出力信号によりスイツチングレギ
ユレータ２の動作の停止を行うこと、 を特徴とするスイツチング信号異常検出回路。[Scope of Claim for Utility Model Registration] An abnormality detection circuit 1 for detecting an abnormality in an input signal;
In a power supply device having a switching regulator 2 that performs switching and boosts a DC voltage based on an output signal of the abnormality detection circuit 1, the abnormality detection circuit 1 includes means for comparing the input signal with a predetermined reference voltage. a first comparator circuit 11 comprising a first comparator circuit 11; and a second comparator circuit 1 having means for comparing the output voltage of the first comparator circuit 11 and the input signal.
2, and in response to the input signal becoming abnormal, the second
A switching signal abnormality detection circuit characterized in that the operation of the switching regulator 2 is stopped by the output signal of the comparison circuit 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987191624U JPH0623160Y2 (en) | 1987-12-16 | 1987-12-16 | Switching signal abnormality detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987191624U JPH0623160Y2 (en) | 1987-12-16 | 1987-12-16 | Switching signal abnormality detection circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0196735U true JPH0196735U (en) | 1989-06-27 |
| JPH0623160Y2 JPH0623160Y2 (en) | 1994-06-15 |
Family
ID=31482527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987191624U Expired - Lifetime JPH0623160Y2 (en) | 1987-12-16 | 1987-12-16 | Switching signal abnormality detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0623160Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55120331A (en) * | 1979-03-06 | 1980-09-16 | Fujitsu Ltd | Overcurrent protector circuit for converter power supply device |
| JPS59148528A (en) * | 1983-02-15 | 1984-08-25 | 東芝ライテック株式会社 | Power source |
-
1987
- 1987-12-16 JP JP1987191624U patent/JPH0623160Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55120331A (en) * | 1979-03-06 | 1980-09-16 | Fujitsu Ltd | Overcurrent protector circuit for converter power supply device |
| JPS59148528A (en) * | 1983-02-15 | 1984-08-25 | 東芝ライテック株式会社 | Power source |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0623160Y2 (en) | 1994-06-15 |
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