GB2341990A - Solid state switching device circuit - Google Patents

Solid state switching device circuit

Info

Publication number
GB2341990A
GB2341990A GB0000325A GB0000325A GB2341990A GB 2341990 A GB2341990 A GB 2341990A GB 0000325 A GB0000325 A GB 0000325A GB 0000325 A GB0000325 A GB 0000325A GB 2341990 A GB2341990 A GB 2341990A
Authority
GB
United Kingdom
Prior art keywords
switching device
circuit
solid state
state switching
primary
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
GB0000325A
Other versions
GB0000325D0 (en
GB2341990B (en
Inventor
Koichi Hayashi
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.)
HPM Industries Pty Ltd
Original Assignee
HPM Industries Pty 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 HPM Industries Pty Ltd filed Critical HPM Industries Pty Ltd
Publication of GB0000325D0 publication Critical patent/GB0000325D0/en
Publication of GB2341990A publication Critical patent/GB2341990A/en
Application granted granted Critical
Publication of GB2341990B publication Critical patent/GB2341990B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B39/04—Controlling
    • H05B39/08—Controlling by shifting phase of trigger voltage applied to gas-filled controlling tubes also in controlled semiconductor devices

Landscapes

  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

A solid state switching circuit, typically for use in dimmer control of an electric lamp (11). The switching circuit comprises a primary solid state switching device (10) in the form of a triac which is arranged to be connected in circuit with the lamp (11) across a supply voltage (12), and a gating circuit (13) arranged to apply a gating signal to the primary switching device (10) at a predetermined time during each half-cycle of the supply voltage. A secondary state switching device (14) in the form of a transistor is connected in a rectifier circuit (15) and located in parallel with the primary switching device (10), and a biasing circuit (16) is provided to apply a biasing signal to the secondary switching device (14) in intervals during which the primary switching device is non-conducting.
GB0000325A 1997-07-09 1998-07-06 Solid state switching device circuit Expired - Fee Related GB2341990B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPO7789A AUPO778997A0 (en) 1997-07-09 1997-07-09 Solid state switching device circuit
PCT/AU1998/000518 WO1999003027A1 (en) 1997-07-09 1998-07-06 Solid state switching device circuit

Publications (3)

Publication Number Publication Date
GB0000325D0 GB0000325D0 (en) 2000-03-01
GB2341990A true GB2341990A (en) 2000-03-29
GB2341990B GB2341990B (en) 2001-06-13

Family

ID=3802078

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0000325A Expired - Fee Related GB2341990B (en) 1997-07-09 1998-07-06 Solid state switching device circuit

Country Status (4)

Country Link
AU (1) AUPO778997A0 (en)
GB (1) GB2341990B (en)
NZ (1) NZ502153A (en)
WO (1) WO1999003027A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1719963A (en) * 2004-07-08 2006-01-11 皇家飞利浦电子股份有限公司 Light modulating device
ITMI20050638A1 (en) * 2005-04-14 2006-10-15 Vimar Spa POWER SUPPLY REGULATOR DEVICE

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855482A (en) * 1972-09-05 1974-12-17 Borg Warner Solid state switching system for coupling an ac power supply to a load
US4097769A (en) * 1976-11-05 1978-06-27 Electro Corporation Circuit for controllably providing power from an AC source to a load
WO1982000549A1 (en) * 1980-08-04 1982-02-18 B Joseph Electrical switching device
EP0321798A2 (en) * 1987-12-22 1989-06-28 Asea Brown Boveri Aktiengesellschaft Circuit arrangement for controlling a power triac

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855482A (en) * 1972-09-05 1974-12-17 Borg Warner Solid state switching system for coupling an ac power supply to a load
US4097769A (en) * 1976-11-05 1978-06-27 Electro Corporation Circuit for controllably providing power from an AC source to a load
WO1982000549A1 (en) * 1980-08-04 1982-02-18 B Joseph Electrical switching device
EP0321798A2 (en) * 1987-12-22 1989-06-28 Asea Brown Boveri Aktiengesellschaft Circuit arrangement for controlling a power triac

Also Published As

Publication number Publication date
WO1999003027A1 (en) 1999-01-21
NZ502153A (en) 2001-01-26
AUPO778997A0 (en) 1997-07-31
GB0000325D0 (en) 2000-03-01
GB2341990B (en) 2001-06-13

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Legal Events

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

Effective date: 20060706