Patent ID: 9647572
Date: 2017-05-09
CPC Classifications: H02J,H02M,Y02B

Claim:
1. A method of controlling a converter, including a resonant circuit having an inductor in which a direction of a current through the inductor is dependent on a state of at least a first control switch and a second control switch, the method comprising: a. switching the first control switch into a first state upon occurrence of a first zero crossing event, wherein the first zero crossing event occurs when a voltage across the first control switch reaches zero; b. switching the first control switch into a second state in response to expiration of a first predetermined time interval, wherein the first predetermined time interval is triggered to begin upon the second control switch switching to the second state; c. switching the second control switch into the first state upon occurrence of a second zero crossing event, wherein the second zero crossing event occurs when a voltage across the second control switch reaches zero; and d. switching the second control switch into the second state in response to expiration of a second predetermined time interval, wherein the second predetermined time interval is triggered to begin upon the first control switch switching to the second state.