Direct drive ballast with starting circuit

H - Electricity – 05 – B

Patent

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Details

321/2, 315/37, 3

H05B 41/26 (2006.01) H05B 41/282 (2006.01)

Patent

CA 1097729

-13- ABSTRACT An electronic ballast circuit includes a direct drive high frequency inverter circuit with a tuned output circuit and a drive circuit dependent upon current flow in a load circuit. The high frequency inverter circuit is coupled to a DC potential source which is derived from a pulsed DC potential source by way of a charge storage and charge isolating circuit. An oscillator provides a starting capability for the high frequency inverter circuit and is essentially removed from the active circuitry upon energization of the high frequency inverter circuit. -21,484

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