JPS59144475U - voltage detection circuit - Google Patents
voltage detection circuitInfo
- Publication number
- JPS59144475U JPS59144475U JP3497083U JP3497083U JPS59144475U JP S59144475 U JPS59144475 U JP S59144475U JP 3497083 U JP3497083 U JP 3497083U JP 3497083 U JP3497083 U JP 3497083U JP S59144475 U JPS59144475 U JP S59144475U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- series
- detected
- detection circuit
- voltage detection
- 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
Landscapes
- Measurement Of Current Or Voltage (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来における電圧検出回路の構成図および第２
図は本考案の一実施例における電圧検出回路の構成図で
ある。
図はおいてＺＤ、 ＺＤ□〜ＺＤ工〜３はツェナダイオ
ード、ＰｌはホトカップラおよびＲｏ、 Ｒ１，Ｒ３，
Ｒｃは抵抗である。Figure 1 shows a configuration diagram of a conventional voltage detection circuit and a diagram of a conventional voltage detection circuit.
The figure is a configuration diagram of a voltage detection circuit in an embodiment of the present invention. In the figure, ZD, ZD□~ZD~3 are Zener diodes, Pl is a photocoupler and Ro, R1, R3,
Rc is a resistance.
Claims (1)
流を流して基準電圧を発生する手段を同一または異なる
基準電圧を有する組合せによって複数回路縦続し、該縦
続直列回路の一端にホトカップラの発光ダイオードを順
方向直列に接続してなり、発光ダイオードの他端を基準
とし複数の基準電圧に対応する各直列回路毎に設けた引
出端子に被検出電圧を印加し、該被検出電圧が基準電圧
の低電圧側よりまたは高電圧側より基準電圧をよぎると
き、ホトカップラにおける受光トランジスタの出力に得
られる電圧変化により該被検出電圧−の電圧変化を検出
することを特徴とする電圧検出回路。A means for generating a reference voltage by passing current through a series circuit consisting of a Zener diode and its series resistance is connected in series by a combination of the same or different reference voltages, and a light emitting diode of a photocoupler is connected to one end of the series circuit in the forward direction. The voltage to be detected is applied to the extraction terminal provided for each series circuit that is connected in series and corresponds to multiple reference voltages with the other end of the light emitting diode as a reference, and the voltage to be detected is on the low voltage side of the reference voltage. 1. A voltage detection circuit that detects a voltage change in the detected voltage by a voltage change obtained at the output of a light-receiving transistor in a photocoupler when the reference voltage crosses the reference voltage from the higher or higher voltage side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3497083U JPS59144475U (en) | 1983-03-11 | 1983-03-11 | voltage detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3497083U JPS59144475U (en) | 1983-03-11 | 1983-03-11 | voltage detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59144475U true JPS59144475U (en) | 1984-09-27 |
Family
ID=30165684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3497083U Pending JPS59144475U (en) | 1983-03-11 | 1983-03-11 | voltage detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59144475U (en) |
-
1983
- 1983-03-11 JP JP3497083U patent/JPS59144475U/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6118636U (en) | Waveform shaping circuit device | |
| JPS59144475U (en) | voltage detection circuit | |
| JPS60108148U (en) | charging device | |
| JPS6083971U (en) | current detector | |
| JPS59104218U (en) | Constant voltage power supply circuit with current limit | |
| JPS6042970U (en) | current detection circuit | |
| JPS58175415U (en) | sensor circuit | |
| JPS5956930U (en) | power display device | |
| JPS60181676U (en) | Window comparator circuit | |
| JPH02103289U (en) | ||
| JPS6087017U (en) | Constant current circuit with voltage limit | |
| JPS5866364U (en) | AC input detection circuit | |
| JPS59128195U (en) | Lamp burnout detection circuit | |
| JPS59161089U (en) | Photo micro sensor | |
| JPS6082315U (en) | Window comparator circuit | |
| JPS5822352U (en) | Disconnection detection device for vehicle lamps | |
| JPS6022027U (en) | reset circuit | |
| JPS5866895U (en) | Protection circuit for DC motor control circuit | |
| JPS5980762U (en) | Small current detection device | |
| JPS5917862U (en) | Voltage drop detection circuit | |
| JPH0394043U (en) | ||
| JPS6062198U (en) | Two-wire pulse transmission device | |
| JPS59178730U (en) | reset circuit | |
| JPS6183337U (en) | ||
| JPS59142816U (en) | Constant voltage circuit output short circuit prevention circuit |