JPS5644859A - Sensing circuit of maximum electric current - Google Patents
Sensing circuit of maximum electric currentInfo
- Publication number
- JPS5644859A JPS5644859A JP12075979A JP12075979A JPS5644859A JP S5644859 A JPS5644859 A JP S5644859A JP 12075979 A JP12075979 A JP 12075979A JP 12075979 A JP12075979 A JP 12075979A JP S5644859 A JPS5644859 A JP S5644859A
- Authority
- JP
- Japan
- Prior art keywords
- electric current
- zeuner
- diode
- voltage
- sensing 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
Landscapes
- Measurement Of Current Or Voltage (AREA)
Abstract
PURPOSE: To sense the correct maximum electric current by taking out polyphase all-wave rectifier output sensing the maximum voltage value, through a Zeuner diode.
CONSTITUTION: Sensing voltage of an electric current sensor 3 which detects a load electric current of DC electric motor 2 is conducted to the input terminals B1WBn of an n-phase allwave rectifier 4. The maximum voltage is added to an impedance 5 through the Zeuner diode 7 and is taken out either between N and C or P and C. A differential beyond the rated electric current is obtained in the output of an insulated amplifier 6 by making the Zeuner voltage of Zeuner diode 7 correspond to the rated electric current of the DC electric motor 2.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12075979A JPS5644859A (en) | 1979-09-21 | 1979-09-21 | Sensing circuit of maximum electric current |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12075979A JPS5644859A (en) | 1979-09-21 | 1979-09-21 | Sensing circuit of maximum electric current |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5644859A true JPS5644859A (en) | 1981-04-24 |
Family
ID=14794282
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12075979A Pending JPS5644859A (en) | 1979-09-21 | 1979-09-21 | Sensing circuit of maximum electric current |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5644859A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06153303A (en) * | 1992-11-09 | 1994-05-31 | Matsushita Electric Ind Co Ltd | Leak detector |
-
1979
- 1979-09-21 JP JP12075979A patent/JPS5644859A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06153303A (en) * | 1992-11-09 | 1994-05-31 | Matsushita Electric Ind Co Ltd | Leak detector |
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