CH635221B - ELECTRICAL CIRCUIT FOR OPERATING AN AC MOTOR. - Google Patents

ELECTRICAL CIRCUIT FOR OPERATING AN AC MOTOR.

Info

Publication number
CH635221B
CH635221B CH790079A CH790079A CH635221B CH 635221 B CH635221 B CH 635221B CH 790079 A CH790079 A CH 790079A CH 790079 A CH790079 A CH 790079A CH 635221 B CH635221 B CH 635221B
Authority
CH
Switzerland
Prior art keywords
motor
volts
supply voltage
operating
ptc
Prior art date
Application number
CH790079A
Other languages
German (de)
Other versions
CH635221GA3 (en
Inventor
Manfred Metzger
Original Assignee
Satchwell Birka
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 of CH635221B publication Critical patent/CH635221B/en
Application filed by Satchwell Birka filed Critical Satchwell Birka
Publication of CH635221GA3 publication Critical patent/CH635221GA3/de

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P4/00—Arrangements specially adapted for regulating or controlling the speed or torque of electric motors that can be connected to two or more different electric power supplies

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)
  • Motor And Converter Starters (AREA)
  • Control Of Electric Motors In General (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Fluid-Damping Devices (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

The present invention relates to electric circuitry for applying different supply voltages to a synchronous a.c. motor 5 for driving a clock. The voltages are applied via a series resistor, which consists of a PTC resistor 10 that is bridged by a capacitor 9. In that circuitry, a motor is used that is designed for a supply voltage of or below 24 volts. If the supply voltage is low (24 volts), the PTC resistor will have a low resistance and for this reason exerts no influence. If the supply voltage is high (220 volts), the PTC voltage will have a high resistance so that the motor current is mainly controlled by the capacitor. Zener diodes 11 may be connected across the motor. <IMAGE>
CH790079A 1978-09-02 1979-08-31 ELECTRICAL CIRCUIT FOR OPERATING AN AC MOTOR. CH635221B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE7826384 1978-09-02

Publications (2)

Publication Number Publication Date
CH635221B true CH635221B (en)
CH635221GA3 CH635221GA3 (en) 1983-03-31

Family

ID=6694822

Family Applications (1)

Application Number Title Priority Date Filing Date
CH790079A CH635221B (en) 1978-09-02 1979-08-31 ELECTRICAL CIRCUIT FOR OPERATING AN AC MOTOR.

Country Status (4)

Country Link
CH (1) CH635221B (en)
FR (1) FR2435151A1 (en)
GB (1) GB2031237B (en)
NL (1) NL7906545A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3010629C2 (en) * 1980-03-20 1983-01-05 Satchwell Birka Regelungstechnik Gmbh, 5630 Remscheid Arrangement for operating a synchronous motor fed with AC voltage

Also Published As

Publication number Publication date
FR2435151A1 (en) 1980-03-28
NL7906545A (en) 1980-03-04
CH635221GA3 (en) 1983-03-31
GB2031237A (en) 1980-04-16
FR2435151B1 (en) 1984-09-07
GB2031237B (en) 1983-01-19

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