DE2948054A1 - Power supply circuit for portable appliances - has pulsed supply switch controlled according to mains voltage level - Google Patents

Power supply circuit for portable appliances - has pulsed supply switch controlled according to mains voltage level

Info

Publication number
DE2948054A1
DE2948054A1 DE19792948054 DE2948054A DE2948054A1 DE 2948054 A1 DE2948054 A1 DE 2948054A1 DE 19792948054 DE19792948054 DE 19792948054 DE 2948054 A DE2948054 A DE 2948054A DE 2948054 A1 DE2948054 A1 DE 2948054A1
Authority
DE
Germany
Prior art keywords
voltage level
mains voltage
mains
power supply
supply circuit
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.)
Granted
Application number
DE19792948054
Other languages
German (de)
Other versions
DE2948054C3 (en
DE2948054B2 (en
Inventor
Klaus Dipl Ing Becker
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.)
BECKER, KLAUS, DIPL.-ING., 40822 METTMANN, DE
Original Assignee
Klaus Dipl Ing Becker
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 Klaus Dipl Ing Becker filed Critical Klaus Dipl Ing Becker
Priority to DE2948054A priority Critical patent/DE2948054C3/de
Priority claimed from AT80107474T external-priority patent/AT5165T/en
Priority claimed from EP80107474A external-priority patent/EP0030026B2/en
Priority claimed from DE19803047103 external-priority patent/DE3047103A1/en
Publication of DE2948054A1 publication Critical patent/DE2948054A1/en
Publication of DE2948054B2 publication Critical patent/DE2948054B2/de
Publication of DE2948054C3 publication Critical patent/DE2948054C3/de
Application granted granted Critical
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M3/00Conversion of dc power input into dc power output
    • H02M3/22Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/338Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement
    • H02M3/3385Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement with automatic control of output voltage or current
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2207/00Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20Charging or discharging characterised by the power electronics converter

Abstract

The supply circuit, for an electric razor with a choice of mains voltages, has a blocking oscillator with a transformer whose primary is coupled via a controllable semiconductor switch to the mains supply. The secondary is connected to the load e.g. an electric motor. The semiconductor switch is controlled by a control circuit. The semiconductor switch is turned on by positive feedback but turned off depending upon the current in the primary (nl) and the voltage (U1) of the mains (3,4). The primary current and the mains voltage determine the length of time for which the switch is closed.
DE2948054A 1979-11-29 1979-11-29 Expired DE2948054C3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2948054A DE2948054C3 (en) 1979-11-29 1979-11-29

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
DE2948054A DE2948054C3 (en) 1979-11-29 1979-11-29
EP80107474A EP0030026B2 (en) 1979-11-29 1980-11-29 Circuit arrangement for the regular supply to a user
AT80107474T AT5165T (en) 1979-11-29 1980-11-29 Circuit arrangement for regulated supply of a consumer.
US06/287,720 US4504775A (en) 1979-11-29 1980-11-29 Self oscillating, single-ended flyback converter with input voltage responsive control
JP50019281A JPS56501694A (en) 1979-11-29 1980-11-29
PCT/DE1980/000176 WO1981001634A1 (en) 1979-11-29 1980-11-29 Switching device for regulating the supply of a consumer apparatus
DE19803047103 DE3047103A1 (en) 1979-11-29 1980-12-13 Supply circuit for motor in electric razor - has adjustable zener diode in base circuit of transistor switch

Publications (3)

Publication Number Publication Date
DE2948054A1 true DE2948054A1 (en) 1981-06-04
DE2948054B2 DE2948054B2 (en) 1982-02-04
DE2948054C3 DE2948054C3 (en) 1988-11-10

Family

ID=6087163

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2948054A Expired DE2948054C3 (en) 1979-11-29 1979-11-29

Country Status (1)

Country Link
DE (1) DE2948054C3 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2949421A1 (en) * 1979-12-08 1981-07-02 Braun Ag CIRCUIT FOR CHARGING A BATTERY
DE3040875A1 (en) * 1980-10-30 1982-06-09 Klaus Dipl Ing Becker Controlled supply circuit for razor flashlight etc. - has two transistors determining supply current and voltage controlling output power of blocking oscillator
DE3047103A1 (en) * 1979-11-29 1982-07-15 Klaus Dipl Ing Becker Supply circuit for motor in electric razor - has adjustable zener diode in base circuit of transistor switch
DE3111432A1 (en) * 1981-03-24 1982-10-07 Braun Ag Circuit arrangement for regulated supply of a load
DE3218594A1 (en) * 1982-05-17 1983-12-22 Braun Ag ELECTRONIC SWITCHING POWER SUPPLY
US4441147A (en) * 1981-01-17 1984-04-03 Braun Aktiengesellschaft Circuit arrangement for the controlled supply to a load
DE3300285A1 (en) * 1983-01-07 1984-07-19 Braun Ag Electronic switched-mode power supply
US4464619A (en) * 1981-02-05 1984-08-07 Braun Aktiengesellschaft Circuit arrangement for the controlled supply to a load

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT387875B (en) * 1983-03-31 1989-03-28 Schrack Elektronik Ag Circuit arrangement for operating a load
DE3700298A1 (en) * 1986-01-10 1987-07-16 Murata Manufacturing Co HIGH VOLTAGE SUPPLY DEVICE

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4005351A (en) * 1974-12-06 1977-01-25 Robert Bosch G.M.B.H. Voltage-regulated and overcurrent-protected power supply
DE2543371A1 (en) * 1975-09-29 1977-03-31 Siemens Ag Feedback controlled single stage blocking inverter - is used for generation of controlled output voltage using transformer and Zener diode
DE2713347A1 (en) * 1976-03-26 1977-09-29 Thomson Brandt Power unit working with chopping
DE2751578A1 (en) * 1976-11-20 1978-05-24 Toko Inc TOGGLE CIRCUIT ARRANGEMENT FOR PROVIDING A VOLTAGE
GB2000394A (en) * 1977-06-13 1979-01-04 Philips Nv Flyback converter for energizing a dc motor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4005351A (en) * 1974-12-06 1977-01-25 Robert Bosch G.M.B.H. Voltage-regulated and overcurrent-protected power supply
DE2543371A1 (en) * 1975-09-29 1977-03-31 Siemens Ag Feedback controlled single stage blocking inverter - is used for generation of controlled output voltage using transformer and Zener diode
DE2713347A1 (en) * 1976-03-26 1977-09-29 Thomson Brandt Power unit working with chopping
DE2751578A1 (en) * 1976-11-20 1978-05-24 Toko Inc TOGGLE CIRCUIT ARRANGEMENT FOR PROVIDING A VOLTAGE
GB2000394A (en) * 1977-06-13 1979-01-04 Philips Nv Flyback converter for energizing a dc motor

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
VALVO Technische Informationen für die In- dustrie, Nr.761027 (Okt. 1976) und Nr.770415 (Apr. 1977) *
Zeitschrift Electrical Design News, 15.1.1970, S.65-67 *
Zeitschrift Electronics, Bd.51, Nr.26, S.100-104 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3047103A1 (en) * 1979-11-29 1982-07-15 Klaus Dipl Ing Becker Supply circuit for motor in electric razor - has adjustable zener diode in base circuit of transistor switch
DE2949421A1 (en) * 1979-12-08 1981-07-02 Braun Ag CIRCUIT FOR CHARGING A BATTERY
DE3040875A1 (en) * 1980-10-30 1982-06-09 Klaus Dipl Ing Becker Controlled supply circuit for razor flashlight etc. - has two transistors determining supply current and voltage controlling output power of blocking oscillator
US4441147A (en) * 1981-01-17 1984-04-03 Braun Aktiengesellschaft Circuit arrangement for the controlled supply to a load
US4464619A (en) * 1981-02-05 1984-08-07 Braun Aktiengesellschaft Circuit arrangement for the controlled supply to a load
DE3111432A1 (en) * 1981-03-24 1982-10-07 Braun Ag Circuit arrangement for regulated supply of a load
DE3218594A1 (en) * 1982-05-17 1983-12-22 Braun Ag ELECTRONIC SWITCHING POWER SUPPLY
US4523139A (en) * 1982-05-17 1985-06-11 Braun Aktiengesellschaft Electronic switching power supply
DE3300285A1 (en) * 1983-01-07 1984-07-19 Braun Ag Electronic switched-mode power supply

Also Published As

Publication number Publication date
DE2948054B2 (en) 1982-02-04
DE2948054C3 (en) 1988-11-10

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