Electric lamp and discharge devices: systems – Current and/or voltage regulation
Reexamination Certificate
2006-09-05
2006-09-05
Wong, Don (Department: 2163)
Electric lamp and discharge devices: systems
Current and/or voltage regulation
C315S20900T
Reexamination Certificate
active
07102299
ABSTRACT:
An electronic circuit for providing a high voltage alternating current supply from a DC supply to an electroluminescent lamp. The circuit includes an inductive element and an output switching element arranged in series. The output switching element is operable to alternate, in use, between a first state and a second state, whereby in the first state a current path is provided through the inductive element and the output switching element, which current path is interrupted in the second state, such that when the output switching element changes from the first state to the second state, the inductive element generates a voltage at an output of the circuit for charging the electroluminescent lamp. The circuit includes an output diode arranged to prevent current flowing back from the output while the output switching element is in the first state.
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Fryer Christopher James Newton
Jones Philip Matthew
Cabucos Marie Antoinette
Pelikon Limited
Sutherland & Asbill & Brennan LLP
Wong Don
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