JPH0275576U - - Google Patents
Info
- Publication number
- JPH0275576U JPH0275576U JP1988154505U JP15450588U JPH0275576U JP H0275576 U JPH0275576 U JP H0275576U JP 1988154505 U JP1988154505 U JP 1988154505U JP 15450588 U JP15450588 U JP 15450588U JP H0275576 U JPH0275576 U JP H0275576U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- thyristor
- measuring device
- measurement
- filter 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.)
- Pending
Links
- 238000005259 measurement Methods 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Measurement Of Current Or Voltage (AREA)
- Control Of Direct Current Motors (AREA)
- Power Conversion In General (AREA)
Description
第１図はこの考案の一実施例を示す回路図、第
２図はこの考案の装置に入力する直流電圧波形の
推移を示す波形図、第３図はサイリスタ制御によ
る直流モータの回路におけるサイリスタ電圧の測
定点を示す図である。
１１…分圧回路、１２…フイルタ回路、１３…
切換スイツチ、１７…アイソレーシヨンアンプ。
Fig. 1 is a circuit diagram showing an embodiment of this invention, Fig. 2 is a waveform diagram showing the transition of the DC voltage waveform input to the device of this invention, and Fig. 3 is a thyristor voltage in a DC motor circuit controlled by a thyristor. FIG. 3 is a diagram showing measurement points. 11... Voltage dividing circuit, 12... Filter circuit, 13...
Changeover switch, 17...Isolation amplifier.
Claims (1)
の直流電圧を一定の電圧まで落とす分圧回路と、
前記直流電圧のリツプルを除去するフイルタ回路
と、入力側と出力側とが電気的に絶縁されたアイ
ソレーシヨンアンプとを備え、前記フイルタ回路
の出力を前記アイソレーシヨンアンプの入力側に
導入し、その出力側から測定電圧を得ることを特
徴とするサイリスタ電圧測定装置。 ２ サイリスタ電圧の測定において、測定点から
の直流電圧を一定の電圧まで落とす分圧回路と、
前記直流電圧のリツプルを除去するフイルタ回路
と、入力側と出力側とが電気的に絶縁されたアイ
ソレーシヨンアンプと、前記直流電圧を直接前記
アイソレーシヨンアンプの入力側に導入するか前
記分圧回路、フイルタ回路を介して前記入力側に
導入するかを切換る切換スイツチとを備え、前記
アイソレーシヨンアンプの出力側から測定電圧を
得ることを特徴とするサイリスタ電圧測定装置。[Claims for Utility Model Registration] 1. A voltage divider circuit that reduces the DC voltage from the measurement point to a constant voltage in the measurement of thyristor voltage;
A filter circuit that removes ripples in the DC voltage and an isolation amplifier whose input side and output side are electrically isolated are provided, and the output of the filter circuit is introduced into the input side of the isolation amplifier. A thyristor voltage measuring device characterized in that a measured voltage is obtained from the output side of the thyristor voltage measuring device. 2. In the measurement of thyristor voltage, a voltage divider circuit that reduces the DC voltage from the measurement point to a constant voltage,
a filter circuit for removing ripples in the DC voltage; an isolation amplifier whose input side and output side are electrically isolated; 1. A thyristor voltage measuring device, characterized in that the thyristor voltage measuring device is equipped with a changeover switch for switching whether to introduce the voltage to the input side via a pressure circuit or a filter circuit, and obtains the measurement voltage from the output side of the isolation amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988154505U JPH0275576U (en) | 1988-11-28 | 1988-11-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988154505U JPH0275576U (en) | 1988-11-28 | 1988-11-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0275576U true JPH0275576U (en) | 1990-06-08 |
Family
ID=31431296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988154505U Pending JPH0275576U (en) | 1988-11-28 | 1988-11-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0275576U (en) |
-
1988
- 1988-11-28 JP JP1988154505U patent/JPH0275576U/ja active Pending