GB1002049A - Improvements in regulated d.c. supplies - Google Patents

Improvements in regulated d.c. supplies

Info

Publication number
GB1002049A
GB1002049A GB1880964A GB1880964A GB1002049A GB 1002049 A GB1002049 A GB 1002049A GB 1880964 A GB1880964 A GB 1880964A GB 1880964 A GB1880964 A GB 1880964A GB 1002049 A GB1002049 A GB 1002049A
Authority
GB
United Kingdom
Prior art keywords
amplifier
output
transistor
inverter
pulse generator
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
GB1880964A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables 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
Priority claimed from AU30415/63A external-priority patent/AU262389B2/en
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB1002049A publication Critical patent/GB1002049A/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
    • 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
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/125—Conversion of dc power input into dc power output without intermediate conversion into ac 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
    • H02M3/135—Conversion of dc power input into dc power output without intermediate conversion into ac 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
    • H02M3/137—Conversion of dc power input into dc power output without intermediate conversion into ac 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 voltage or current, e.g. switching regulators

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Static Devices (AREA)
  • Inverter Devices (AREA)

Abstract

1,002,049. Transistor circuits. STANDARD TELEPHONES & CABLES Ltd. May 6, 1964 [May 8, 1963], No. 18809/64. Heading H3T. [Also in Divisions G3 and H2] In an automatic control system for maintaining the output of a D.C. to A.C. inverter at a constant value (see Division G3), an error signal derived from the comparison between the inverter output voltage and a reference voltage is applied over a D.C. amplifier 7, a pulse generator 8, a gate 9 and a pulse amplifier 10 to control the D.C. input to the inverter. The amplifier 7 includes transistors Q1, Q2, Q3 with feedback applied between the emitters thereof so that the output current is equal to the input voltage at base Q1 multiplied by a negative constant; a diode D10 in the emitter of Q1 compensates for temperature variations. The output from the amplifier 7 at collector Q3 is applied to the pulse generator 8 which is constituted by a capacitor C16 and a unijunction transistor Q4, the arrangement being such that a decrease in current from the amplifier 7, caused by an increase in the output voltage of the inverter, results in a decrease in the pulse generator frequency. The gate 9 includes a transistor Q6 over which the output from the pulse generator is applied to the pulse amplifier 10, and a transistor Q7 which, when its base becomes a few volts positive, renders transistor Q6 non-conducting, whereby protection against various limiting conditions, e.g. output overload, may be effected by applying a signal dependent on such conditions to the base Q7.
GB1880964A 1963-05-08 1964-05-06 Improvements in regulated d.c. supplies Expired GB1002049A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU30415/63A AU262389B2 (en) 1963-05-08 Improvements in regulated d. c. toa. c. static inverter systems

Publications (1)

Publication Number Publication Date
GB1002049A true GB1002049A (en) 1965-08-18

Family

ID=3718353

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1880964A Expired GB1002049A (en) 1963-05-08 1964-05-06 Improvements in regulated d.c. supplies

Country Status (2)

Country Link
DE (1) DE1463679A1 (en)
GB (1) GB1002049A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2178088A1 (en) * 1972-03-30 1973-11-09 Etter Marcel
US4473793A (en) * 1981-03-26 1984-09-25 Dbx, Inc. Bias generator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2178088A1 (en) * 1972-03-30 1973-11-09 Etter Marcel
US4473793A (en) * 1981-03-26 1984-09-25 Dbx, Inc. Bias generator

Also Published As

Publication number Publication date
DE1463679A1 (en) 1969-08-21

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