JPS55139072A - Discharge circuit of capacitor - Google Patents

Discharge circuit of capacitor

Info

Publication number
JPS55139072A
JPS55139072A JP4501579A JP4501579A JPS55139072A JP S55139072 A JPS55139072 A JP S55139072A JP 4501579 A JP4501579 A JP 4501579A JP 4501579 A JP4501579 A JP 4501579A JP S55139072 A JPS55139072 A JP S55139072A
Authority
JP
Japan
Prior art keywords
capacitor
parallel
discharge circuit
fet
connection point
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
Application number
JP4501579A
Other languages
Japanese (ja)
Inventor
Mamoru Hizawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP4501579A priority Critical patent/JPS55139072A/en
Publication of JPS55139072A publication Critical patent/JPS55139072A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Power Conversion In General (AREA)
  • Motor And Converter Starters (AREA)

Abstract

PURPOSE:To reduce the power consumption by connecting a depression FET to a capacitor, which is charged through a charging resistance, in parallel and by controlling its impedance. CONSTITUTION:The P-channel depression FET is connected to the capacitor C1 in parallel, its source electrode is connected to the connection point between the capacitor C1 and the charging resistance R2, the gate electrode is done to the power supply Vcc, the Zener diode ZD2 is put in parallel with the capacitor C1 and its cathode is connected to the connection point between the capacitor C1 and the resistance R2.
JP4501579A 1979-04-13 1979-04-13 Discharge circuit of capacitor Pending JPS55139072A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4501579A JPS55139072A (en) 1979-04-13 1979-04-13 Discharge circuit of capacitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4501579A JPS55139072A (en) 1979-04-13 1979-04-13 Discharge circuit of capacitor

Publications (1)

Publication Number Publication Date
JPS55139072A true JPS55139072A (en) 1980-10-30

Family

ID=12707519

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4501579A Pending JPS55139072A (en) 1979-04-13 1979-04-13 Discharge circuit of capacitor

Country Status (1)

Country Link
JP (1) JPS55139072A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS622390U (en) * 1985-06-20 1987-01-08
JPH03212185A (en) * 1990-01-13 1991-09-17 Matsushita Electric Works Ltd Curtain drive unit
JPH03212186A (en) * 1990-01-13 1991-09-17 Matsushita Electric Works Ltd Motor curtain drive unit
JPH03273887A (en) * 1990-03-20 1991-12-05 Matsushita Electric Works Ltd Equipment for driving motor-driven curtain

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS622390U (en) * 1985-06-20 1987-01-08
JPH0528954Y2 (en) * 1985-06-20 1993-07-26
JPH03212185A (en) * 1990-01-13 1991-09-17 Matsushita Electric Works Ltd Curtain drive unit
JPH03212186A (en) * 1990-01-13 1991-09-17 Matsushita Electric Works Ltd Motor curtain drive unit
JPH03273887A (en) * 1990-03-20 1991-12-05 Matsushita Electric Works Ltd Equipment for driving motor-driven curtain

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