JPH0295873U - - Google Patents
Info
- Publication number
- JPH0295873U JPH0295873U JP462989U JP462989U JPH0295873U JP H0295873 U JPH0295873 U JP H0295873U JP 462989 U JP462989 U JP 462989U JP 462989 U JP462989 U JP 462989U JP H0295873 U JPH0295873 U JP H0295873U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- common potential
- transistor
- diode
- whose
- 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
- 238000012806 monitoring device Methods 0.000 claims description 2
- 230000005669 field effect Effects 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Measurement Of Current Or Voltage (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Emergency Protection Circuit Devices (AREA)
Description
第１図は本考案に係る電源監視装置の要部構成
例を示す図、第２図は従来例を示す図である。
Ｒ１〜Ｒ３……抵抗、Ｑ１……トランジスタ、
Ｑ２……ＦＥＴ、Ｄ１……ダイオード。
FIG. 1 is a diagram showing an example of the main part configuration of a power supply monitoring device according to the present invention, and FIG. 2 is a diagram showing a conventional example. R1 to R3...Resistor, Q1...Transistor,
Q2...FET, D1...diode.
Claims (1)
装置において、 前記監視対象の２つの電源電圧間を分圧する抵
抗分圧手段Ｒ１，Ｒ２と、 この抵抗分圧手段の分圧電圧をベースに導入し
、エミツタを−Ｅｖ電源に接続するトランジスタ
と、 このトランジスタのコレクタにカソードが接続
され、抵抗Ｒ３を介して共通電位にアノードが接
続されたダイオードと、 このダイオードのアノードにゲートが接続され
、ソースが共通電位に接続され、ドレインから警
報信号を出力する電界効果型トランジスタ（以下
単にＦＥＴと記す）と、 を備えた電源監視装置。[Claims for Utility Model Registration] A device for monitoring the supply stop of +Ev power supply and -Ev power supply, comprising resistive voltage dividing means R1 and R2 for dividing the voltage between the two power supply voltages to be monitored; A transistor whose emitter is connected to the -Ev power supply by introducing a divided voltage into the base, a diode whose cathode is connected to the collector of this transistor, and whose anode is connected to a common potential via a resistor R3; and an anode of this diode. A power supply monitoring device comprising: a field effect transistor (hereinafter simply referred to as FET) having a gate connected to a common potential, a source connected to a common potential, and a drain outputting an alarm signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP462989U JPH0719011Y2 (en) | 1989-01-19 | 1989-01-19 | Power supply monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP462989U JPH0719011Y2 (en) | 1989-01-19 | 1989-01-19 | Power supply monitoring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0295873U true JPH0295873U (en) | 1990-07-31 |
| JPH0719011Y2 JPH0719011Y2 (en) | 1995-05-01 |
Family
ID=31207308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP462989U Expired - Lifetime JPH0719011Y2 (en) | 1989-01-19 | 1989-01-19 | Power supply monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0719011Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010210238A (en) * | 2009-03-06 | 2010-09-24 | Renesas Electronics Corp | Probe card, semiconductor inspection device equipped with the same and method for checking fuse of probe card |
-
1989
- 1989-01-19 JP JP462989U patent/JPH0719011Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010210238A (en) * | 2009-03-06 | 2010-09-24 | Renesas Electronics Corp | Probe card, semiconductor inspection device equipped with the same and method for checking fuse of probe card |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0719011Y2 (en) | 1995-05-01 |