Patent ID: 9007042
Filing Date: 2015-04-14
Classification: G05F,H02M,Y02B

Abstract:
1. A DC/DC converter comprising: a low-voltage-side smoothing capacitor which retains a low-voltage-side voltage; a high-voltage-side smoothing capacitor whose negative terminal is connected to a negative terminal of the low-voltage-side smoothing capacitor and which retains a high-voltage-side voltage; a first semiconductor circuit one end of which is connected to the negative terminal of the low-voltage-side smoothing capacitor; a second semiconductor circuit one end of which is connected to another end of the first semiconductor circuit, and another end of which is connected to a positive terminal of the low-voltage-side smoothing capacitor via a reactor; a third semiconductor circuit one end of which is connected to the another end of the second semiconductor circuit; a fourth semiconductor circuit one end of which is connected to another end of the third semiconductor circuit, and another end of which is connected to a positive terminal of the high-voltage-side smoothing capacitor; a charge-discharge capacitor one end of which is connected to an intermediate connection point between the first semiconductor circuit and the second semiconductor circuit, and another end of which is connected to another intermediate connection point between the third semiconductor circuit and the fourth semiconductor circuit; and a control apparatus which controls each of the semiconductor circuits, the DC/DC converter being configured to perform at least one of a step-up operation and a step-down operation,