JPS62115671U - - Google Patents
Info
- Publication number
- JPS62115671U JPS62115671U JP422686U JP422686U JPS62115671U JP S62115671 U JPS62115671 U JP S62115671U JP 422686 U JP422686 U JP 422686U JP 422686 U JP422686 U JP 422686U JP S62115671 U JPS62115671 U JP S62115671U
- Authority
- JP
- Japan
- Prior art keywords
- current
- diode
- rectifier
- output
- detection 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
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Measurement Of Current Or Voltage (AREA)
Description
第1図は本考案の一実施例の要部構成を示す接
続図、第2図は従来例の要部構成を示す接続図で
ある。
1…母線、2…交流変流器(変流器)、3…整
流器、4,7…抵抗器、5,9…コンデンサ、6
…電源、8…ダイオード。
FIG. 1 is a connection diagram showing the main structure of an embodiment of the present invention, and FIG. 2 is a connection diagram showing the main structure of a conventional example. 1... Bus bar, 2... AC current transformer (current transformer), 3... Rectifier, 4, 7... Resistor, 5, 9... Capacitor, 6
...power supply, 8...diode.
Claims (1)
器出力を整流するダイオードブリツジからなる整
流器と、該整流器出力を電圧量に変換する検出用
抵抗器とを備えてなる電流検出回路において、定
電源から通流されるダイオードおよび該ダイオー
ドに並列接続されたコンデンサからなる定電圧回
路を、前記ダイオードブリツジのダイオード順電
圧降下を打ち消す極性に前記整流器と検出用抵抗
器との間に設けたことを特徴とする電流検出回路
。 In a current detection circuit comprising an AC current transformer that transforms a bus current, a rectifier consisting of a diode bridge that rectifies the output of the AC current transformer, and a detection resistor that converts the output of the rectifier into a voltage amount. A constant voltage circuit consisting of a diode and a capacitor connected in parallel to the diode, which is supplied with current from a constant power source, is provided between the rectifier and the detection resistor with a polarity that cancels out the diode forward voltage drop of the diode bridge. A current detection circuit characterized by:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP422686U JPS62115671U (en) | 1986-01-16 | 1986-01-16 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP422686U JPS62115671U (en) | 1986-01-16 | 1986-01-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS62115671U true JPS62115671U (en) | 1987-07-23 |
Family
ID=30784703
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP422686U Pending JPS62115671U (en) | 1986-01-16 | 1986-01-16 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62115671U (en) |
-
1986
- 1986-01-16 JP JP422686U patent/JPS62115671U/ja active Pending