GB958948A - Improvements in or relating to electric power supply circuits - Google Patents

Improvements in or relating to electric power supply circuits

Info

Publication number
GB958948A
GB958948A GB3191762A GB3191762A GB958948A GB 958948 A GB958948 A GB 958948A GB 3191762 A GB3191762 A GB 3191762A GB 3191762 A GB3191762 A GB 3191762A GB 958948 A GB958948 A GB 958948A
Authority
GB
United Kingdom
Prior art keywords
output voltage
winding
transductor
impedance
energized
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
GB3191762A
Inventor
John Phillip Clarke
Phillip Henry Squire
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB3191762A priority Critical patent/GB958948A/en
Publication of GB958948A publication Critical patent/GB958948A/en
Expired 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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/505—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M7/515—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H02M7/525—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output waveform or frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

958,948. Inverting. GENERAL ELECTRIC CO. Ltd. Aug. 24, 1962 [Aug. 24, 1961], No. 31917/62. Divided out of 958,947. Heading H2F. [Also in Division G3] The electric inverter system described in Specification 958,947 includes a series output voltage regulator, the impedance of which increases if the output voltage falls to an abnormally low value, e.g. under short circuit conditions. The output voltage is automatically maintained constant under normal conditions by a series transductor 56 having a control winding 60 which is energized by an error signal derived from a circuit including transistors 73, 76. The output voltage is applied to the primary winding 66 of a transformer 65; a voltage proportional to this output voltage is derived from a secondary winding 68, is rectified and smoothed, and is applied over a potentiometer 72 to the base of transistor 73 which, together with a reference Zener diode 74 acts as a comparator to deliver an error signal which is applied by way of transistor 76 to the control winding 60, whereby the impedance of transductor 56 is varied in dependence upon output voltage variations. If, however, the output voltage falls to a very low value, positive feedback provided by a winding 59 causes the impedance of transductor 56 to increase, whereby a finite load impedance is presented to the inverter which is thus protected against an excessive load current. The feedback winding 59 is connected to a rectifier circuit 63 so that it is energized by a rectified portion of the output of the inverter system. A circuit utilizing silicon controlled rectifiers may replace the transductor' 56. Specification 857,775 also is referred to.
GB3191762A 1961-08-24 1961-08-24 Improvements in or relating to electric power supply circuits Expired GB958948A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3191762A GB958948A (en) 1961-08-24 1961-08-24 Improvements in or relating to electric power supply circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3191762A GB958948A (en) 1961-08-24 1961-08-24 Improvements in or relating to electric power supply circuits

Publications (1)

Publication Number Publication Date
GB958948A true GB958948A (en) 1964-05-27

Family

ID=10330320

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3191762A Expired GB958948A (en) 1961-08-24 1961-08-24 Improvements in or relating to electric power supply circuits

Country Status (1)

Country Link
GB (1) GB958948A (en)

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