GB1439454A - Stabilised power supply systems - Google Patents

Stabilised power supply systems

Info

Publication number
GB1439454A
GB1439454A GB1251372A GB1251372A GB1439454A GB 1439454 A GB1439454 A GB 1439454A GB 1251372 A GB1251372 A GB 1251372A GB 1251372 A GB1251372 A GB 1251372A GB 1439454 A GB1439454 A GB 1439454A
Authority
GB
United Kingdom
Prior art keywords
current
output voltage
voltage
amplifier
power supply
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
GB1251372A
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.)
ELECTRO AUTOMAT Ltd
Original Assignee
ELECTRO AUTOMAT 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 ELECTRO AUTOMAT Ltd filed Critical ELECTRO AUTOMAT Ltd
Priority to GB1251372A priority Critical patent/GB1439454A/en
Publication of GB1439454A publication Critical patent/GB1439454A/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

Landscapes

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

Abstract

1439454 Automatic control of voltage and current ELECTRO AUTOMAT Ltd 7 June 1973 [17 March 1972] 12513/72 Heading G3R A stabilized D.C. power supply has output current controlled by a switch according to a comparison of actual current and current reference signals, and if the supply output voltage is above a pre-set value the current reference is modified by the comparison of the output voltage with a further reference. As shown, a charger for battery 32 uses an unstabilized D.C. source 1 and chopping switch 2 e.g. a transistor, which is controlled by amplifier 40 that compares a measured current, from amplifier 12 using the voltage across a sampling resistor 21, with a current reference 50, to provide current regulation. If, for example, the measured current exceeds reference 50, switch 2 is opened and current from battery 32 flows through sampling resistor 21, choke 5 and commutating diode 4. The output voltage, as sensed by divider 29, 30 is compared by amplifier 24 with a voltage reference 27 so that, if the output voltage exceeds the pre-set value, diode 80 conducts to modify the current reference provide output voltage regulation with variable current.
GB1251372A 1972-03-17 1972-03-17 Stabilised power supply systems Expired GB1439454A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1251372A GB1439454A (en) 1972-03-17 1972-03-17 Stabilised power supply systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1251372A GB1439454A (en) 1972-03-17 1972-03-17 Stabilised power supply systems

Publications (1)

Publication Number Publication Date
GB1439454A true GB1439454A (en) 1976-06-16

Family

ID=10005998

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1251372A Expired GB1439454A (en) 1972-03-17 1972-03-17 Stabilised power supply systems

Country Status (1)

Country Link
GB (1) GB1439454A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4278930A (en) * 1979-09-27 1981-07-14 Gte Automatic Electric Laboratories, Inc. Current sensing circuit for power supply with series control transistor
GB2155709A (en) * 1984-03-13 1985-09-25 William George Battery charging

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4278930A (en) * 1979-09-27 1981-07-14 Gte Automatic Electric Laboratories, Inc. Current sensing circuit for power supply with series control transistor
GB2155709A (en) * 1984-03-13 1985-09-25 William George Battery charging

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee