GB1279553A - Improvements in and relating to a.c. powered stabilisers - Google Patents

Improvements in and relating to a.c. powered stabilisers

Info

Publication number
GB1279553A
GB1279553A GB1756470A GB1756470A GB1279553A GB 1279553 A GB1279553 A GB 1279553A GB 1756470 A GB1756470 A GB 1756470A GB 1756470 A GB1756470 A GB 1756470A GB 1279553 A GB1279553 A GB 1279553A
Authority
GB
United Kingdom
Prior art keywords
transistor
voltage
thyristors
circuit
tappings
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
GB1756470A
Inventor
Dieter Speck
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.)
Wandel and Golterman GmbH and Co
Original Assignee
Wandel and Golterman GmbH and 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 Wandel and Golterman GmbH and Co filed Critical Wandel and Golterman GmbH and Co
Publication of GB1279553A publication Critical patent/GB1279553A/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
    • G05F1/563—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 two stages of regulation at least one of which is output level responsive, e.g. coarse and fine regulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Rectifiers (AREA)
  • Selective Calling Equipment (AREA)
  • Control Of Electrical Variables (AREA)

Abstract

1279553 Automatic voltage and current control WANDEL U GOLTERMANN 14 April 1970 [17 April 1969] 17564/70 Heading G3R A D.C. stabilizer of the type wherein a series transistor 7 is controlled by a regulator 10 to maintain a constant output voltage at terminals 9, 9<SP>1</SP> as set by a reference circuit 13 or a constant maximum current as set by a reference circuit 14, is provided with a control circuit 30 which maintains the voltage across the transistor 7 within a predetermined range by firing or cutting off thyristors 5, so that a rectifier 1 supplied from a transformer 2 produces an upper or lower D. C. voltage determined respectively by the thyristors 5 and rectifiers 4 as connected to the ends and to tappings 3 of the secondary winding of the transformer. The upper and lower limits of the predetermined voltage range across transistor 7 are respectively determined by threshold circuits 20, 21 and 22, 23, the former functioning upon occurrence of the upper limit to drive a bistable multi-vibrator 24, 28 into the conductive state to deliver a blocking signal to the thyristor 5 via circuit members 16, 17, 25. When the lower limit is reached the multi-vibrator 24, 28 is blocked by the circuit 22, 23 to supply a firing signal to the thyristors 5. The tappings 3 are chosen so that the difference between the upper and lower D. C. voltages produced by the rectifier 1 is smaller than the predetermined voltage range across the transistor 7.
GB1756470A 1969-04-17 1970-04-14 Improvements in and relating to a.c. powered stabilisers Expired GB1279553A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691919434 DE1919434A1 (en) 1969-04-17 1969-04-17 AC voltage fed DC voltage and / or current stabilizer with a long-running, regulator-operated actuator

Publications (1)

Publication Number Publication Date
GB1279553A true GB1279553A (en) 1972-06-28

Family

ID=5731428

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1756470A Expired GB1279553A (en) 1969-04-17 1970-04-14 Improvements in and relating to a.c. powered stabilisers

Country Status (3)

Country Link
DE (1) DE1919434A1 (en)
FR (1) FR2039238A1 (en)
GB (1) GB1279553A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2125194A (en) * 1982-08-05 1984-02-29 Plessey Co Plc Regulated DC power supply
GB2206982A (en) * 1987-06-13 1989-01-18 Mitsuoka Electric Mfg Direct current power supply
GB2237903A (en) * 1989-03-11 1991-05-15 Smiths Industries Plc Regulated power supply

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2125194A (en) * 1982-08-05 1984-02-29 Plessey Co Plc Regulated DC power supply
GB2206982A (en) * 1987-06-13 1989-01-18 Mitsuoka Electric Mfg Direct current power supply
US4947313A (en) * 1987-06-13 1990-08-07 Mitsuoka Electric Manufacturing Co., Ltd. Direct current power supply
GB2206982B (en) * 1987-06-13 1992-01-02 Mitsuoka Electric Mfg Direct current power supply
GB2237903A (en) * 1989-03-11 1991-05-15 Smiths Industries Plc Regulated power supply

Also Published As

Publication number Publication date
FR2039238A1 (en) 1971-01-15
DE1919434A1 (en) 1971-01-07

Similar Documents

Publication Publication Date Title
US3213351A (en) Firing pulse generating circuit for solid state controlled rectifiers
US3375428A (en) Regulated rectifier circuit
GB1335245A (en) Hv dc networks
GB1301852A (en)
US3214599A (en) Voltage regulator for d.c. generator
GB980796A (en) Improvements in or relating to charging control circuits for electrochemical batteries or accumulators
GB1279553A (en) Improvements in and relating to a.c. powered stabilisers
GB1130532A (en) Ignition circuit with voltage regulator
GB1492187A (en) Switches for example controllable rectifiers and circuits for supplying control signals for controlling the switche
US3525033A (en) Regulated power supply utilizing a gate turn off switch
GB1474453A (en) Power supply circuits
GB1031462A (en) Voltage stabilisers
GB1048222A (en) Improvements in voltage regulators for generators
GB1032493A (en) Control circuits for electric discharge devices
US3174059A (en) Bistable circuits employing controlled rectifiers
GB1079002A (en) Regulated electric power supplies
GB1047904A (en) Improvements in and relating to a stabilised unidirectional voltage supply
GB1349148A (en) Stabilised power supply systems
GB1031461A (en) Voltage regulators
GB1045287A (en) Improvements relating to power supply systems
GB1485786A (en) Device for adjusting the power supplied to a load from a rectified alternating voltage source by suppressing half cycles
US3239691A (en) Solid state relay employing back-to-back connected scr elements
GB988586A (en) Current regulators
GB947758A (en) Ac-dc converter
FR2244299A1 (en) Voltage impulse control of inductive load - using DC current regulator and relatively high voltage extinction capacitor

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees