GB1289641A - - Google Patents

Info

Publication number
GB1289641A
GB1289641A GB1289641DA GB1289641A GB 1289641 A GB1289641 A GB 1289641A GB 1289641D A GB1289641D A GB 1289641DA GB 1289641 A GB1289641 A GB 1289641A
Authority
GB
United Kingdom
Prior art keywords
transistor
capacitor
april
half cycle
brightness
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
Other languages
English (en)
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 filed Critical
Publication of GB1289641A publication Critical patent/GB1289641A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S315/00—Electric lamp and discharge devices: systems
    • Y10S315/04—Dimming circuit for fluorescent lamps

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
  • Rectifiers (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
GB1289641D 1969-04-25 1970-04-13 Expired GB1289641A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691921122 DE1921122B2 (de) 1969-04-25 1969-04-25 Einrichtung zur steuerung eines aus einem wechselstromnetz gespeisten verbrauchers mittels eines leistungstransistors

Publications (1)

Publication Number Publication Date
GB1289641A true GB1289641A (enrdf_load_stackoverflow) 1972-09-20

Family

ID=5732333

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1289641D Expired GB1289641A (enrdf_load_stackoverflow) 1969-04-25 1970-04-13

Country Status (4)

Country Link
US (1) US3668434A (enrdf_load_stackoverflow)
DE (1) DE1921122B2 (enrdf_load_stackoverflow)
FR (1) FR2044741A1 (enrdf_load_stackoverflow)
GB (1) GB1289641A (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4359681A (en) * 1980-05-01 1982-11-16 Westinghouse Electric Corp. Alternating current power controller with DC transistor switching and an internal DC power supply
GB8423574D0 (en) * 1984-09-18 1984-10-24 Smiths Ind Plc Ac Switch
US4728866A (en) * 1986-09-08 1988-03-01 Lutron Electronics Co., Inc. Power control system
US5247242A (en) * 1990-01-12 1993-09-21 Toshiba Kikai Kabushiki Kaisha Output module
US20070127179A1 (en) * 2005-12-05 2007-06-07 Ludjin William R Burnout protection switch

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2935674A (en) * 1958-03-17 1960-05-03 Globe Ind Inc Motor control
US3025418A (en) * 1959-12-24 1962-03-13 United Aircraft Corp Quadrature stripping circuit
US3091704A (en) * 1960-01-21 1963-05-28 W F And John Barnes Company Bridge circuit control means with ganged switches effecting leakage compensation
US3146392A (en) * 1961-08-02 1964-08-25 Gen Electric Control circuits employing unijunction transistors for firing controlled rectifiers
US3239685A (en) * 1962-09-18 1966-03-08 Bendix Corp Control circuit

Also Published As

Publication number Publication date
US3668434A (en) 1972-06-06
FR2044741A1 (enrdf_load_stackoverflow) 1971-02-26
DE1921122B2 (de) 1972-12-07
DE1921122A1 (de) 1971-01-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees