Patent ID: 6069804
Filing Date: 2000-05-30
Classification: H02J,H02M,Y02B

Abstract:
A bi-directional power converter having an input coupled to an input voltage source and an output coupled to a first output voltage source comprising:an input bi-directional switch, a FET, having a conduction channel and a control terminal, andan output bi-directional switch, a FET, having a conduction channel and a control terminal,a coupled inductor having an input winding and an output winding, the coupled inductor input winding being coupled to the output winding,the coupled inductor input winding being connected in series with the input voltage source and the input bi-directional switch conduction channel,the coupled inductor output winding being connected in series with the first output voltage source and the output bi-directional switch conduction channel,a clock circuit providing first and second control signals, each control signal having a first and second state, the second control signal having a state that is the complement of the first control signal,the first control signal first state duration followed by the second control signal first state duration forming a substantially fixed clock period, the first control signal being coupled to the input bi-directional switch control terminal and the second control signal being coupled to the output bi-directional switch control terminal,the input bi-directional switch conduction channel being driven into a conductive state in response to the first control signal being in a first state and into a non-conductive state in response to the first control signal being in a second state,the output bi-directional switch conduction channel being, driven into a conductive state in response to the second control signal being in a first state and into a non-conductive state in response to the second control signal being in a second state.