| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To precisely detect a current value of electric current supplied to a voltage converter. <P>SOLUTION: A controller of a voltage converter (30) comprises: duty command signal generation means (210) which generates a duty command signal (DUTY); carrier signal generation means (250) which generates a carrier signal (CR); switching control signal generation means (235) which generates a switching control signal (PWC); single arm drive control means (270) which achieves a single arm drive with either one of a first arm including a first switching element (Q1) and a second arm including a second switching element (Q2); duty control means (230) which controls the duty command signal generation means to generate the duty command signal for turning both of the first and the second switching elements off for a prescribed period when switching the single arm drive therebetween; and original point learning means (290) which learns a current value detected within the prescribed period as an original point. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
