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US 8,531,121 B2Granted
Driver circuit particularly suited for lighting devices
OwnerNelson Caldani, Tielei Zhanginventors
Life of this patent
Estimating the term…
Abstract
Disclosed are various embodiments of driver circuits that operate to excite devices for light emissions therefrom regardless of the impedance ratings thereof. The driver circuits are particularly suited to service both low impedance light emitting diode lighting devices and high impedance halogen lamps.
Claims11
A driver circuit comprising:
- a) receiving means having input and output stages, a charge storage means, and means for discharging said charge storage means across said output stage of said receiving means upon reaching a predetermined voltage, said input stage of said receiving means receiving a d.c. voltage that is routed to said charge storage means;
- b) a switching coupler arranged in a bridged configuration having arms with each arm having input and output stages with the input stage thereof connected to said output stage of said receiving means, said switching coupler having a network in each of its arms and said network being comprised of a first resistor, a first inductor, and a first, capacitor, said switching coupler further having a second inductor in each arm of the switching coupler and connected to a respective network and which provides induced and reversing currents at the output stage of said switching coupler;
- and
- c) a transformer having input and output stages with the input stage connected to said output stage of said switching coupler.
1 more element
A driver circuit comprising:
- a) receiving means having input and output stages, a charge storage means, and means for discharging said charge storage means across said output stage upon reaching a predetermined voltage, said input stage receiving a d.c. voltage that is routed to said charge storage means;
- b) a switching coupler arranged in a bridged configuration having arms with each arm having input and output stages with the input stage thereof connected to said output stage of said receiving means, said switching coupler having a first resistor, a second resistor, and a first capacitor network along with a second inductor in each arm of the switching coupler and connected to a respective network and which provides induced and reversing currents at the output stage of said switching coupler;
- and
- c) a transformer having input and output stages with the input stage connected to said output stage of said switching.
1 more element
Dependencies are inferred from the claim text.