GB1044906A - Oscillating back electromotive force unit - Google Patents

Oscillating back electromotive force unit

Info

Publication number
GB1044906A
GB1044906A GB2971563A GB2971563A GB1044906A GB 1044906 A GB1044906 A GB 1044906A GB 2971563 A GB2971563 A GB 2971563A GB 2971563 A GB2971563 A GB 2971563A GB 1044906 A GB1044906 A GB 1044906A
Authority
GB
United Kingdom
Prior art keywords
load
choke
transistor
conductive
switching device
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
GB2971563A
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
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB1044906A publication Critical patent/GB1044906A/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
    • 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
    • H02M3/145—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 triode or transistor type requiring continuous application of a control signal
    • H02M3/155—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 triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—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 triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/1563—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 triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators without using an external clock

Landscapes

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

Abstract

1,044,906. Automatic voltage control systems. STANDARD TELEPHONES & CABLES Ltd. July 26, 1963 [Aug. 1, 1962], No. 29715/63. Heading G3R A regulated power supply comprises a source of D.C. 1 having a tapped choke 2, 2a and a controlled switching device such as a transistor in series with a load 6, a capacitor 3 connected across part of the choke 2, and in parallel with the load and electronic voltage sensing means 4 which renders the switching device 7 conductive and non- conductive when the voltage across the load drops below and rises above predetermined values. When the switch 7 opens the magnetic energy in the choke 2 is fed back into the circuit by the winding 2a, which energy would otherwise destroy the transistor. The switching frequency varies with the load current and is high to reduce the size of any smoothing current provided.
GB2971563A 1962-08-01 1963-07-26 Oscillating back electromotive force unit Expired GB1044906A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT622462A AT237115B (en) 1962-08-01 1962-08-01 Pendulum counter cell

Publications (1)

Publication Number Publication Date
GB1044906A true GB1044906A (en) 1966-10-05

Family

ID=3584125

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2971563A Expired GB1044906A (en) 1962-08-01 1963-07-26 Oscillating back electromotive force unit

Country Status (3)

Country Link
AT (1) AT237115B (en)
CH (1) CH417748A (en)
GB (1) GB1044906A (en)

Also Published As

Publication number Publication date
AT237115B (en) 1964-11-25
CH417748A (en) 1966-07-31

Similar Documents

Publication Publication Date Title
GB987590A (en) Improvements in or relating to the control of current in plasma
GB968512A (en) Improvements relating to switching circuits
GB1362702A (en) Circuits for electronic commultation
GB1088210A (en) Electrical appliance with a power control circuit
GB1031780A (en) Switching circuit for controlling the effective power applied to a load from a source of alternating supply voltage
ES416182A1 (en) Voltage regulator with protection circuit for an alternating current generator
GB1144480A (en) Constant electrical power regulator
GB1130532A (en) Ignition circuit with voltage regulator
GB1152295A (en) Improvements in or relating to Switched-Voltage Regulated DC Voltage Supply Arrangements
ES365686A1 (en) Constant frequency inverter with frequency override
GB1044906A (en) Oscillating back electromotive force unit
ES281950A1 (en) Improvements in ignition systems (Machine-translation by Google Translate, not legally binding)
ES8102427A1 (en) Improvements in or Relating to Electronic Trigger Systems
GB1052861A (en)
GB1096622A (en) Improvements in and relating to inductive electrical apparatus
GB1164204A (en) Improvements in High Voltage D.C. Transmission Systems
JPS56159716A (en) Direct-current electric power device
GB1366264A (en) Electric personal protection device
ES416770A1 (en) Device for charging an electric power storage element to a predetermined voltage
GB947758A (en) Ac-dc converter
GB872776A (en) Improvements relating to variable d.c. transformer circuits
GB1019007A (en) Apparatus for regulating the supply of direct current power to a load
JPS5671334A (en) Control device
GB1181262A (en) Inductive Electric Apparatus
JPS57191721A (en) Power supply circuit