Patent ID: 6091288
Filing Date: 2000-07-18
Classification: H02M,H03K,Y02B

Abstract:
A circuit, comprising:a resonant circuit including a first switching element and a resonant inductive element for coupling to a load, the first switching element having a first terminal, a second terminal and a third terminal;a first control circuit coupled to the second terminal of the first switching element for controlling a conduction state of the first switching element to facilitate resonant operation of the circuit;a first diode having a first terminal and a second terminal, the first terminal of the first diode being coupled to the first terminal of the first switching element;a first inductive bias element inductively coupled to the resonant inductive element, the first bias element having a first terminal and a second terminal, the first bias element first terminal being coupled to the third terminal of the first switching element and the first bias element second terminal being coupled to the second terminal of the first diode, the first bias element for biasing the first switching element against avalanche current flow from the first terminal to the second terminal of the first switching element.