JPH0410532U - - Google Patents
Info
- Publication number
- JPH0410532U JPH0410532U JP5165090U JP5165090U JPH0410532U JP H0410532 U JPH0410532 U JP H0410532U JP 5165090 U JP5165090 U JP 5165090U JP 5165090 U JP5165090 U JP 5165090U JP H0410532 U JPH0410532 U JP H0410532U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- supply voltage
- switching element
- turned
- measuring instrument
- 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
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 2
- 238000005259 measurement Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Measurement Of Current Or Voltage (AREA)
- Emergency Protection Circuit Devices (AREA)
Description
第１図は本考案の原理ブロツク図、第２図は本
考案の一実施例を示す回路図である。
１……入力端子、２……スイツチング素子、３
……プリアンプ、４……電源監視回路、５……ツ
エナーダイオード、６……抵抗。
FIG. 1 is a block diagram of the principle of the present invention, and FIG. 2 is a circuit diagram showing an embodiment of the present invention. 1...Input terminal, 2...Switching element, 3
... Preamplifier, 4 ... Power supply monitoring circuit, 5 ... Zener diode, 6 ... Resistor.
Claims (1)
ツシヨルドレベルとして測定器の電源電圧状態を
監視し、電源電圧状態に応じた検出信号を出力す
る電源電圧監視回路と、 この電源電圧監視回路の検出信号により駆動さ
れ、入力信号系統をオンオフするスイツチング素
子とを具備し、 電源電圧がスレツシヨルドレベルに達しない状
態では、スイツチング素子をオフにして入力信号
系統をオフにすることを特徴とする並列測定適合
入力回路。[Claim for Utility Model Registration] A power supply voltage monitoring circuit that monitors the power supply voltage state of a measuring instrument using a voltage that guarantees stable measurement operation of the measuring instrument as a threshold level, and outputs a detection signal according to the power supply voltage state. and a switching element that is driven by the detection signal of this power supply voltage monitoring circuit and turns on and off the input signal system.When the power supply voltage does not reach the threshold level, the switching element is turned off and the input signal system is turned off. Parallel measurement compatible input circuit characterized by turning off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5165090U JPH0410532U (en) | 1990-05-17 | 1990-05-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5165090U JPH0410532U (en) | 1990-05-17 | 1990-05-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0410532U true JPH0410532U (en) | 1992-01-29 |
Family
ID=31571275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5165090U Pending JPH0410532U (en) | 1990-05-17 | 1990-05-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0410532U (en) |
-
1990
- 1990-05-17 JP JP5165090U patent/JPH0410532U/ja active Pending
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