IT7949761A0 - Circuito di segnali ad alta frequenza per un impianto oscuratore di lampada - Google Patents
Circuito di segnali ad alta frequenza per un impianto oscuratore di lampadaInfo
- Publication number
- IT7949761A0 IT7949761A0 IT7949761A IT4976179A IT7949761A0 IT 7949761 A0 IT7949761 A0 IT 7949761A0 IT 7949761 A IT7949761 A IT 7949761A IT 4976179 A IT4976179 A IT 4976179A IT 7949761 A0 IT7949761 A0 IT 7949761A0
- Authority
- IT
- Italy
- Prior art keywords
- high frequency
- frequency signal
- signal circuit
- dimming system
- lamp dimming
- Prior art date
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
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/36—Controlling
- H05B41/38—Controlling the intensity of light
- H05B41/39—Controlling the intensity of light continuously
- H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
- H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
- H05B41/3927—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations by pulse width modulation
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/64—Generators producing trains of pulses, i.e. finite sequences of pulses
- H03K3/66—Generators producing trains of pulses, i.e. finite sequences of pulses by interrupting the output of a generator
- H03K3/70—Generators producing trains of pulses, i.e. finite sequences of pulses by interrupting the output of a generator time intervals between all adjacent pulses of one train being equal
-
- 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
- Y10S315/07—Starting and control circuits for gas discharge lamp using transistors
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/936,883 US4220895A (en) | 1978-08-25 | 1978-08-25 | Non-interfering, overlapping high frequency signalling for lamp dimmer circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
IT7949761A0 true IT7949761A0 (it) | 1979-07-16 |
Family
ID=25469193
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT7949761A IT7949761A0 (it) | 1978-08-25 | 1979-07-16 | Circuito di segnali ad alta frequenza per un impianto oscuratore di lampada |
Country Status (10)
Country | Link |
---|---|
US (1) | US4220895A (it) |
AU (1) | AU521450B2 (it) |
BE (1) | BE878422A (it) |
CA (1) | CA1114886A (it) |
DE (1) | DE2932702A1 (it) |
ES (1) | ES481585A1 (it) |
FR (1) | FR2434521A1 (it) |
GB (1) | GB2029133B (it) |
IT (1) | IT7949761A0 (it) |
MX (1) | MX146569A (it) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4441063A (en) * | 1980-05-06 | 1984-04-03 | Square D Company | Pulse generating system |
US4560909A (en) * | 1982-09-28 | 1985-12-24 | General Electric Company | Dual load remote power control for a ceiling fan |
US4651060A (en) * | 1985-11-13 | 1987-03-17 | Electro Controls Inc. | Method and apparatus for dimming fluorescent lights |
US4866350A (en) * | 1988-04-04 | 1989-09-12 | Usi Lighting, Inc. | Fluorescent lamp system |
HU201193B (en) * | 1988-06-21 | 1990-09-28 | Jozsef Ladanyi | Process and switchgear for regulating the light intensity of gas-discharge tubes |
US6034488A (en) * | 1996-06-04 | 2000-03-07 | Lighting Control, Inc. | Electronic ballast for fluorescent lighting system including a voltage monitoring circuit |
US5949197A (en) * | 1997-06-30 | 1999-09-07 | Everbrite, Inc. | Apparatus and method for dimming a gas discharge lamp |
US6208122B1 (en) * | 1999-09-28 | 2001-03-27 | Triatek, Inc. | High frequency pulse width modulation of AC current for control of lighting load power |
DE10001530A1 (de) * | 2000-01-15 | 2001-07-19 | Mannesmann Rexroth Ag | Elektrische Schaltungsanordnung zur Umformung einer elektrischen Eingangsgröße in eine eingeprägte elektrische Ausgangsspannung |
DE10162941C1 (de) * | 2001-12-20 | 2003-08-14 | Appel Elektronik Gmbh | Beleuchtungssystem mit separat dimmbaren Niedervolt-Halogenlampen |
DE10239370A1 (de) * | 2002-08-28 | 2004-03-18 | Harman Becker Automotive Systems (Becker Division) Gmbh | Ansteuereinrichtung für Leuchtstoffröhren |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3766431A (en) * | 1967-10-23 | 1973-10-16 | Thorn Electrical Ind Ltd | A lighting control system including an analogue to digital converter |
US3548342A (en) * | 1968-10-15 | 1970-12-15 | Ibm | Digitally controlled amplitude modulation circuit |
US3803452A (en) * | 1972-01-20 | 1974-04-09 | S Goldschmied | Lamp control circuit |
US3816794A (en) * | 1972-03-28 | 1974-06-11 | Esquire Inc | High intensity, gas discharge lamp dimmer system |
US3894265A (en) * | 1974-02-11 | 1975-07-08 | Esquire Inc | High intensity lamp dimming circuit |
-
1978
- 1978-08-25 US US05/936,883 patent/US4220895A/en not_active Expired - Lifetime
-
1979
- 1979-05-24 CA CA328,264A patent/CA1114886A/en not_active Expired
- 1979-06-14 GB GB7920794A patent/GB2029133B/en not_active Expired
- 1979-06-15 ES ES481585A patent/ES481585A1/es not_active Expired
- 1979-07-16 IT IT7949761A patent/IT7949761A0/it unknown
- 1979-08-11 DE DE19792932702 patent/DE2932702A1/de not_active Withdrawn
- 1979-08-17 FR FR7921311A patent/FR2434521A1/fr not_active Withdrawn
- 1979-08-20 AU AU50090/79A patent/AU521450B2/en not_active Ceased
- 1979-08-23 MX MX179040A patent/MX146569A/es unknown
- 1979-08-24 BE BE0/196877A patent/BE878422A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
FR2434521A1 (fr) | 1980-03-21 |
ES481585A1 (es) | 1980-01-16 |
CA1114886A (en) | 1981-12-22 |
DE2932702A1 (de) | 1980-03-06 |
US4220895A (en) | 1980-09-02 |
BE878422A (fr) | 1979-12-17 |
GB2029133A (en) | 1980-03-12 |
GB2029133B (en) | 1982-11-10 |
AU521450B2 (en) | 1982-04-01 |
MX146569A (es) | 1982-07-07 |
AU5009079A (en) | 1980-02-28 |
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