[go: up one dir, main page]

GB937506A - Improvements relating to power transistors and voltage regulating circuits therefor - Google Patents

Improvements relating to power transistors and voltage regulating circuits therefor

Info

Publication number
GB937506A
GB937506A GB4130860A GB4130860A GB937506A GB 937506 A GB937506 A GB 937506A GB 4130860 A GB4130860 A GB 4130860A GB 4130860 A GB4130860 A GB 4130860A GB 937506 A GB937506 A GB 937506A
Authority
GB
United Kingdom
Prior art keywords
transistors
divider
voltage regulating
power transistors
improvements relating
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
GB4130860A
Inventor
Kenneth Michael Watkins
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.)
Siemens Mobility Ltd
Original Assignee
Westinghouse Brake and Signal Co Ltd
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 Westinghouse Brake and Signal Co Ltd filed Critical Westinghouse Brake and Signal Co Ltd
Priority to GB4130860A priority Critical patent/GB937506A/en
Publication of GB937506A publication Critical patent/GB937506A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current 
    • G05F1/46—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC
    • G05F1/56—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices
    • G05F1/59—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices including plural semiconductor devices as final control devices for a single load
    • G05F1/595—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices including plural semiconductor devices as final control devices for a single load semiconductor devices connected in series

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Continuous-Control Power Sources That Use Transistors (AREA)

Abstract

937,506. Automatic voltage control systems. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Nov. 6, 1961 [Dec. 1, 1960], No. 41308/60. Class 38 (4). [Also in Group XL (c)] In a series voltage control system having a plurality of transistors VT1-VT4 with their input and output electrodes in a series chain with VT4 as the control transistor, transistors VT1-VT3 are connected to a potential divider and equalizing network R1-R4 through amplifying transistors VT5-VT7 to compensate for variations in drive signal due to variations of current in the potential divider. The transistors VT5-VT7 may, in turn, be controlled by further amplifying transistors, connected to the divider, which allows the resistance of the divider to be increased.
GB4130860A 1960-12-01 1960-12-01 Improvements relating to power transistors and voltage regulating circuits therefor Expired GB937506A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4130860A GB937506A (en) 1960-12-01 1960-12-01 Improvements relating to power transistors and voltage regulating circuits therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4130860A GB937506A (en) 1960-12-01 1960-12-01 Improvements relating to power transistors and voltage regulating circuits therefor

Publications (1)

Publication Number Publication Date
GB937506A true GB937506A (en) 1963-09-25

Family

ID=10419093

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4130860A Expired GB937506A (en) 1960-12-01 1960-12-01 Improvements relating to power transistors and voltage regulating circuits therefor

Country Status (1)

Country Link
GB (1) GB937506A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0331253A1 (en) * 1988-03-04 1989-09-06 Philips Composants Current source with a wide range of output voltages
EP1118922A1 (en) * 2000-01-19 2001-07-25 ELMOS Semiconductor AG Electrical circuit to control a load with two transistors

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0331253A1 (en) * 1988-03-04 1989-09-06 Philips Composants Current source with a wide range of output voltages
FR2628230A1 (en) * 1988-03-04 1989-09-08 Radiotechnique Compelec CURRENT SOURCE WITH EXTENDED RANGE OF OUTPUT VOLTAGES
EP1118922A1 (en) * 2000-01-19 2001-07-25 ELMOS Semiconductor AG Electrical circuit to control a load with two transistors

Similar Documents

Publication Publication Date Title
ES397069A1 (en) Synchronous detector control
GB1220538A (en) Voltage protection circuit for transistor regulaters
GB937506A (en) Improvements relating to power transistors and voltage regulating circuits therefor
ES376097A1 (en) Power multiplexing system
GB1251379A (en)
GB965311A (en) Proportional control a.c. servomotor amplifier
GB1288305A (en)
GB1246815A (en) Marginal switching arrangement
GB1325027A (en) Circuit arrangement for forming the means value of several input voltages
GB834367A (en) Circuit arrangement for current-regulation with the aid of transistors
GB1072568A (en) Improvements in or relating to filter circuit arrangements
GB1127268A (en) Improvements in or relating to d.c. amplifiers
GB1044461A (en) Improvements in and relating to transistor amplifiers
GB968475A (en) Improvements in or relating to transistor amplifier circuits
GB1227233A (en)
GB923428A (en) Circuit arrangement for controlling the amplification in a transistor amplifier stage
GB1147078A (en) Improvements in or relating to electrical apparatus
GB1073289A (en) A circuit for preoviding an output signal which reproduces the waveform of an input signal
GB864408A (en) Electrical control system
GB1111931A (en) Electrical circuits
JPS5272445A (en) Chopper type constant voltage power source system
GB1273975A (en) Improvements in or relating to waveform generators
JPS5566128A (en) Analog signal transmission circuit
GB1033372A (en) d.c monitoring circuit
GB887015A (en) Improvements in or relating to magnetic amplifier circuits