ZA762167B - Improvements in chopped electrical power supplies to load - Google Patents

Improvements in chopped electrical power supplies to load

Info

Publication number
ZA762167B
ZA762167B ZA762167A ZA762167A ZA762167B ZA 762167 B ZA762167 B ZA 762167B ZA 762167 A ZA762167 A ZA 762167A ZA 762167 A ZA762167 A ZA 762167A ZA 762167 B ZA762167 B ZA 762167B
Authority
ZA
South Africa
Prior art keywords
load
electrical power
power supplies
chopped electrical
chopped
Prior art date
Application number
ZA762167A
Inventor
A Clark
Original Assignee
Mawdsleys 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 Mawdsleys Ltd filed Critical Mawdsleys Ltd
Publication of ZA762167B publication Critical patent/ZA762167B/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
    • H03K17/081—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit
    • H03K17/0814—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the output circuit
    • H03K17/08146—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the output circuit in bipolar transistor switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
    • H01H47/32—Energising current supplied by semiconductor device
    • H01H47/325—Energising current supplied by semiconductor device by switching regulator
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electronic Switches (AREA)
  • Dc-Dc Converters (AREA)
ZA762167A 1976-04-06 1976-04-09 Improvements in chopped electrical power supplies to load ZA762167B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB19279/75A GB1528023A (en) 1976-04-06 1976-04-06 Chopped electrical power supplies to loads

Publications (1)

Publication Number Publication Date
ZA762167B true ZA762167B (en) 1977-04-27

Family

ID=10126758

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA762167A ZA762167B (en) 1976-04-06 1976-04-09 Improvements in chopped electrical power supplies to load

Country Status (2)

Country Link
GB (1) GB1528023A (en)
ZA (1) ZA762167B (en)

Also Published As

Publication number Publication date
GB1528023A (en) 1978-10-11

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