GB1014258A - Improvements in switching circuits - Google Patents

Improvements in switching circuits

Info

Publication number
GB1014258A
GB1014258A GB1228964A GB1228964A GB1014258A GB 1014258 A GB1014258 A GB 1014258A GB 1228964 A GB1228964 A GB 1228964A GB 1228964 A GB1228964 A GB 1228964A GB 1014258 A GB1014258 A GB 1014258A
Authority
GB
United Kingdom
Prior art keywords
capacitor
energized
march
impedance
voltage
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.)
Expired
Application number
GB1228964A
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.)
Tecumseh Products Co
Original Assignee
Tecumseh Products Co
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 Tecumseh Products Co filed Critical Tecumseh Products Co
Publication of GB1014258A publication Critical patent/GB1014258A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/72—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
    • H03K17/725—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region for ac voltages or currents
    • 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
    • H02M1/081—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters wherein the phase of the control voltage is adjustable with reference to the AC source
    • 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
    • H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
    • H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
    • H02P1/42—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual single-phase induction motor
    • H02P1/44—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual single-phase induction motor by phase-splitting with a capacitor
    • H02P1/445—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual single-phase induction motor by phase-splitting with a capacitor by using additional capacitors switched at start up

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor And Converter Starters (AREA)
  • Control Of Ac Motors In General (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

1,014,258. Control of A.C. motors. TECUM SEH PRODUCTS CO. March 24, 1964 [March 25, 1963], No. 12289/64. Heading H2J. A capacitor 20 in the phase winding 16 of a single-phase induction motor is connected to the supply 14 through two rectifiers 22, 24 connected in opposition, one of which is a thyristor. As shown, triggering voltage is produced across an impedance 26 by the main winding current; when this drops with the attainment of running speed the voltage is insufficient to trigger and so the capacitor 20, being energized through rectifier 22 only, is rendered inoperative. The impedance 26 may be replaced by an impulse transformer. The phase winding may continue to be energized after starting through a " run " capacitor 18.
GB1228964A 1963-03-25 1964-03-24 Improvements in switching circuits Expired GB1014258A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26760363A 1963-03-25 1963-03-25

Publications (1)

Publication Number Publication Date
GB1014258A true GB1014258A (en) 1965-12-22

Family

ID=23019474

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1228964A Expired GB1014258A (en) 1963-03-25 1964-03-24 Improvements in switching circuits

Country Status (6)

Country Link
BE (1) BE645632A (en)
DE (1) DE1538178B2 (en)
ES (1) ES298009A1 (en)
GB (1) GB1014258A (en)
LU (1) LU45732A1 (en)
NL (1) NL6403186A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0035411A2 (en) * 1980-03-05 1981-09-09 Pico Electronics Limited Switching circuit for a remote control system
JP2017229225A (en) * 2016-06-20 2017-12-28 株式会社荏原製作所 Single-phase induction motor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0035411A2 (en) * 1980-03-05 1981-09-09 Pico Electronics Limited Switching circuit for a remote control system
EP0035411A3 (en) * 1980-03-05 1981-09-23 Pico Electronics Limited Switching circuit for a remote control system
JP2017229225A (en) * 2016-06-20 2017-12-28 株式会社荏原製作所 Single-phase induction motor
EP3474435A4 (en) * 2016-06-20 2020-01-01 Ebara Corporation Single-phase induction motor

Also Published As

Publication number Publication date
DE1538178B2 (en) 1971-10-14
LU45732A1 (en) 1964-05-25
BE645632A (en) 1964-07-16
NL6403186A (en) 1964-09-28
DE1538178A1 (en) 1970-06-11
ES298009A1 (en) 1964-06-01

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