Patent ID: 8912764
Filing Date: 2014-12-16
Classification: B60L,H02M,Y02T

Abstract:
1. A power control unit comprising: a converter that outputs a voltage higher than or equal to a voltage on one side from the other side whereas outputs a voltage lower than or equal to the voltage on said other side from said one side; a first capacitor connected onto said one side of said converter; a second capacitor connected onto said other side of said converter; a controller that operates to control said converter with power reserved in said first capacitor and supplied to the controller; and a casing that houses therein said first capacitor, said second capacitor, said converter, and said controller; said converter including: a first switching element connected between a positive electrode terminal and a negative electrode terminal in said first capacitor; and a second switching element connected between the positive electrode terminal in said first capacitor and a positive electrode terminal in said second capacitor; and said controller controlling said converter so as to alternately turn on said first switching element and said second switching element and prolong a time at which said second switching element is ON more than a time at which said first switching element is ON, in order to electrically discharge said first capacitor and said second capacitor.