Patent ID: 8471518
Filing Date: 2013-06-25
Classification: B60L,H02P,Y02T

Abstract:
1. A power conversion device, comprising: a power switching circuit that receives DC power and outputs AC power, including a plurality of series circuits in each of which a switching element that operates as an upper arm and a switching element that operates as a lower arm are connected in series; a control circuit that repeatedly calculates the states of the switching elements at a predetermined cycle on the basis of input information, and, according to the results of these calculations, generates control signals for controlling the continuity or discontinuity of the switching elements at timings based upon the phase of the AC output to be generated by the power switching circuit; and a driver circuit that generates drive signals for controlling the continuity or discontinuity of the switching elements, on the basis of the control signals from the control circuit; wherein: if the relationship between the state of a switching element in a control cycle calculated on the basis of the input information and the state of the switching element in the next control cycle is a discontinuous relationship, the control circuit additionally performs control to make the switching element continuous or discontinuous on the basis of the state of the switching element in the control cycle and the state of the switching element in the next control cycle.