A circuit for controlling a power converter includes a pulse generator generating a first pulse signal and a second pulse signal in response to an input signal, the first pulse signal being asserted at a given time interval or thereafter after the input signal has been de-asserted, a level-shift circuit shifting a level of the first pulse signal to generate a first shifted signal and to shift a level of the second pulse signal to generate a second shifted signal, a logic circuit controlling a first-side switching device in response to the first and second shifted signals, and an output node outputting an output signal. The first-side switching device is coupled to a second side-switching device at the output node.