Patent ID: 7944715
Filing Date: 2011-05-17
Classification: H02M,Y02B

Abstract:
1. A controller adapted for use in a resonant direct current/direct current converter for controlling a switch of the resonant direct current/direct current converter, said controller comprising: a pulse width modulation controlling unit adapted to be coupled electrically to the resonant direct current/direct current converter for detecting an output voltage of the resonant direct current/direct current converter, and for generating a pulse width modulation signal according to the output voltage detected thereby; a fixed frequency signal generating unit coupled electrically to said pulse-width modulation controlling unit for generating a fixed frequency signal; and a logic synthesizing unit coupled electrically to said pulse width modulation controlling unit and said fixed frequency signal generating unit for synthesizing the pulse width modulation signal and the fixed frequency signal so as to generate a driving signal that is adapted to drive the switch of the resonant direct current/direct current converter.