Patent ID: 7804196
Filing Date: 2010-09-28
Classification: B60L,H02J,H02M,Y02T

Abstract:
1. A multiple input-output power converter comprising: at least two input-output circuits to be connected to electric units; a plurality of power converting circuits, each of the plurality of power converting circuits including switches, at least an inductor, and a plurality of capacitors; and a control circuit controlling switching of the switches in a plurality of operation modes to selectively use the inductor and the capacitors to operate the power converting circuits in one of a voltage stepping up operation, a voltage stepping down operation, or a conducting operation, wherein the capacitors comprise a first capacitor and a second capacitor connected in series, the connected first and second capacitors being shared among the plurality of power converting circuits as elements of the plurality of the power converting circuits, wherein at least one of the power converting circuits comprises a step up and down converting circuit; the input-output circuits comprise first and second input-output circuits; the switches comprise: a first switch selectively connecting a positive terminal of the first input-output circuit to a positive terminal of the first capacitor and a positive terminal of the second input-output circuit; a second switch selectively connecting the positive terminal of the first input-output circuit to a negative terminal of the first capacitor and a positive terminal of the second capacitor; a third switch selectively connecting a negative terminal of the first input-output circuit to the negative terminal of the first capacitor and the positive terminal of the second capacitor; and a fourth switch selectively connecting the negative terminal of the first input-output circuit to a negative terminal of the second capacitor and the negative terminal of the second input-output circuit.