JPS6455465U - - Google Patents
Info
- Publication number
- JPS6455465U JPS6455465U JP15145587U JP15145587U JPS6455465U JP S6455465 U JPS6455465 U JP S6455465U JP 15145587 U JP15145587 U JP 15145587U JP 15145587 U JP15145587 U JP 15145587U JP S6455465 U JPS6455465 U JP S6455465U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- reference voltage
- signal
- selector
- power supply
- 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 7
- 230000002159 abnormal effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- Measurement Of Current Or Voltage (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Description
第1図は本考案の第1の実施例を示す構成ブロ
ツク図で、低電圧検出のみの場合を示し、第2図
は本考案の第2の実施例を示す構成ブロツク図で
、高電圧検出のみの場合を示し、第3図は本考案
の第3の実施例を示す構成ブロツク図で、正負の
電源電圧に対する低電圧検出及び高電圧検出の場
合を示し、第4図は本考案の第4の実施例を示す
構成ブロツク図で、正のみの電源電圧に対する低
電圧検出及び高電圧検出の場合を示してある。第
5図は従来装置の構成ブロツク図である。
10……レベル変換部、20……セレクタ、3
0……コンパレータ、Vref……基準電圧。
FIG. 1 is a block diagram showing a first embodiment of the present invention, showing only low voltage detection, and FIG. 2 is a block diagram showing a second embodiment of the present invention, in which high voltage detection is required. FIG. 3 is a configuration block diagram showing a third embodiment of the present invention, showing the case of low voltage detection and high voltage detection for positive and negative power supply voltages, and FIG. 4 is a block diagram showing the third embodiment of the present invention. FIG. 4 is a block diagram showing the configuration of the fourth embodiment, and shows the case of low voltage detection and high voltage detection for a positive only power supply voltage. FIG. 5 is a block diagram of a conventional device. 10...Level converter, 20...Selector, 3
0... Comparator, Vref... Reference voltage.
Claims (1)
号を入力して、この電圧が正常であるときは当該
基準電圧に対して警報信号をしない領域であつて
当該基準電圧と僅かな電圧離れたレベルに変換す
るレベル変換部と、 このレベル変換部から出力された信号のうち最
小若しくは最大のうち少なくとも一方を選択する
セレクタと、 このセレクタで出力された信号と前記基準電圧
とを比較し、前記セレクタが最小を選択している
場合は基準電圧よりも低い場合に警報信号を出力
し、前記セレクタが最大を選択している場合は基
準電圧よりも高い場合に警報信号を出力するコン
パレータと、 よりなることを特徴とする電源装置の異常電圧検
出回路。[Claims for Utility Model Registration] A region in which a reference voltage source and an output voltage signal of a power supply device equipped with multiple power supply voltages are input, and when this voltage is normal, an alarm signal is not issued for the reference voltage. a level converter that converts the signal to a level that is slightly different from the reference voltage; a selector that selects at least one of the minimum or maximum of the signals output from the level converter; The signal is compared with the reference voltage, and if the selector has selected the minimum, an alarm signal is output when the voltage is lower than the reference voltage, and if the selector has selected the maximum, the voltage is lower than the reference voltage. An abnormal voltage detection circuit for a power supply device, comprising: a comparator that outputs an alarm signal when the voltage is high;
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15145587U JPH0436457Y2 (en) | 1987-10-02 | 1987-10-02 | |
US07/175,924 US4862339A (en) | 1987-06-05 | 1988-03-31 | DC power supply with improved output stabilizing feedback |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15145587U JPH0436457Y2 (en) | 1987-10-02 | 1987-10-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6455465U true JPS6455465U (en) | 1989-04-05 |
JPH0436457Y2 JPH0436457Y2 (en) | 1992-08-27 |
Family
ID=31425514
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15145587U Expired JPH0436457Y2 (en) | 1987-06-05 | 1987-10-02 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0436457Y2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020016695A (en) * | 2018-07-23 | 2020-01-30 | ローム株式会社 | Abnormality detection circuit |
-
1987
- 1987-10-02 JP JP15145587U patent/JPH0436457Y2/ja not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020016695A (en) * | 2018-07-23 | 2020-01-30 | ローム株式会社 | Abnormality detection circuit |
Also Published As
Publication number | Publication date |
---|---|
JPH0436457Y2 (en) | 1992-08-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS63146775U (en) | ||
JPS59124370U (en) | Power-off detection circuit | |
JPS63137527U (en) | ||
JPS6455465U (en) | ||
JPH02113172U (en) | ||
JPH0543420Y2 (en) | ||
JPS5935050U (en) | Reset circuit that also detects power supply voltage fluctuations | |
JPH02141126U (en) | ||
JPH01129667U (en) | ||
JPH03121731U (en) | ||
JPH01129677U (en) | ||
JPH0459677U (en) | ||
JPH0436800U (en) | ||
JPS6087018U (en) | satellite power supply | |
JPS6030020U (en) | power supply | |
JPS6397349U (en) | ||
JPS59134891U (en) | gas leak alarm | |
JPS61103831U (en) | ||
JPS61120228U (en) | ||
JPS61115977U (en) | ||
JPS59180680U (en) | Logic power supply abnormality detection device | |
JPH0353038U (en) | ||
JPH02125534U (en) | ||
JPH029991U (en) | ||
JPS5892891U (en) | Inverter voltage control device |