GB1529114A - Power supply circuits - Google Patents

Power supply circuits

Info

Publication number
GB1529114A
GB1529114A GB25681/76A GB2568176A GB1529114A GB 1529114 A GB1529114 A GB 1529114A GB 25681/76 A GB25681/76 A GB 25681/76A GB 2568176 A GB2568176 A GB 2568176A GB 1529114 A GB1529114 A GB 1529114A
Authority
GB
United Kingdom
Prior art keywords
circuit
load
mains
frequency
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
GB25681/76A
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.)
Diamond H Controls Ltd
Original Assignee
Diamond H Controls 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 Diamond H Controls Ltd filed Critical Diamond H Controls Ltd
Priority to GB25681/76A priority Critical patent/GB1529114A/en
Publication of GB1529114A publication Critical patent/GB1529114A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/06—Control, e.g. of temperature, of power
    • 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
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
    • H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
    • H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
    • H02M5/443—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M5/45—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Ac-Ac Conversion (AREA)
  • Inverter Devices (AREA)

Abstract

1529114 Power supply circuit for induction cooker: frequency changers DIAMOND H CONTROLS Ltd 31 March 1977 [21 June 1976] 25681/76 Headings H2H and H2F A power supply circuit for controlling the power supplied to an inductive load 5 (e.g. in an induction cooker) from an A.C. mains supply, comprises a rectifier circuit 13 for rectifying the A.C. mains supply, an inverter circuit for supplying current pulses to the inductive load from the rectifier circuit at a frequency substantially higher than the mains frequency, and a control circuit for periodically enabling the inverter circuit such that current pulses are applied to the load in groups to determine the power supplied to the load, the group repetition frequency being greater than that of flicker perceptible by the human eye. In Fig. 1, 14 is a filtering capacitor. The inverter circuit includes capacitors 3, 4 which are charged from the rectified mains, and thyristors 6, 10 enabled in turn via transformers 8, 11 to permit oscillatory discharge of the capacitors 3, 4 via the load 5. The oscillation is taken off via a transformer 7 to a circuit (Fig. 2, not shown) in which the zero-crossings, delayed, produce pulses to the transformers 8, 11 alternately, during the "up" portions of a duty-cycle pulse train. "Pan-absent" and "switch-on" inhibits are provided.
GB25681/76A 1977-03-31 1977-03-31 Power supply circuits Expired GB1529114A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB25681/76A GB1529114A (en) 1977-03-31 1977-03-31 Power supply circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB25681/76A GB1529114A (en) 1977-03-31 1977-03-31 Power supply circuits

Publications (1)

Publication Number Publication Date
GB1529114A true GB1529114A (en) 1978-10-18

Family

ID=10231595

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25681/76A Expired GB1529114A (en) 1977-03-31 1977-03-31 Power supply circuits

Country Status (1)

Country Link
GB (1) GB1529114A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2466932A1 (en) * 1979-10-01 1981-04-10 Sony Corp INDUCTION HEATING APPARATUS, WITH DETECTOR OF THE HEATING OBJECT
FR2527889A1 (en) * 1982-06-01 1983-12-02 Control Logic Pty Ltd METHOD AND APPARATUS FOR REDUCING HARMONICS IN BALLASTS OF DISCHARGE LAMP IN GAS
US4467165A (en) * 1979-09-17 1984-08-21 Matsushita Electric Industrial Co., Ltd. Induction heating apparatus
GB2197999A (en) * 1986-11-25 1988-06-02 Ti Creda Ltd Improvements in or relating to induction heating circuits for cooking appliances
GB2199453A (en) * 1986-11-25 1988-07-06 Ti Creda Ltd Inverter for induction cooker
EP0561206A2 (en) * 1992-03-14 1993-09-22 E.G.O. Elektro-Geräte Blanc und Fischer GmbH & Co. KG Induction cooking plate
CN102427626A (en) * 2011-08-30 2012-04-25 东莞市精诚电能设备有限公司 Large power induction cooker power controller

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4467165A (en) * 1979-09-17 1984-08-21 Matsushita Electric Industrial Co., Ltd. Induction heating apparatus
FR2466932A1 (en) * 1979-10-01 1981-04-10 Sony Corp INDUCTION HEATING APPARATUS, WITH DETECTOR OF THE HEATING OBJECT
FR2527889A1 (en) * 1982-06-01 1983-12-02 Control Logic Pty Ltd METHOD AND APPARATUS FOR REDUCING HARMONICS IN BALLASTS OF DISCHARGE LAMP IN GAS
NL8301951A (en) * 1982-06-01 1984-01-02 Control Logic Pty Ltd METHOD AND APPARATUS FOR REDUCING HARMONICS IN A PRE-DEVICE FOR A GAS DISCHARGE LAMP
GB2197999A (en) * 1986-11-25 1988-06-02 Ti Creda Ltd Improvements in or relating to induction heating circuits for cooking appliances
GB2199453A (en) * 1986-11-25 1988-07-06 Ti Creda Ltd Inverter for induction cooker
GB2199453B (en) * 1986-11-25 1990-11-14 Ti Creda Ltd Improvements in or relating to induction heating circuits for cooking appliances
GB2197999B (en) * 1986-11-25 1991-01-09 Ti Creda Ltd Improvements in or relating to induction heating circuits for cooking appliances
EP0561206A2 (en) * 1992-03-14 1993-09-22 E.G.O. Elektro-Geräte Blanc und Fischer GmbH & Co. KG Induction cooking plate
EP0561206A3 (en) * 1992-03-14 1993-10-13 E.G.O. Elektro-Geraete Blanc U. Fischer Induction cooking plate
US5488214A (en) * 1992-03-14 1996-01-30 E.G.O. Elektro-Gerate Blanc U. Fischer Inductive cooking point heating system
CN102427626A (en) * 2011-08-30 2012-04-25 东莞市精诚电能设备有限公司 Large power induction cooker power controller

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Legal Events

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