| Abstract |
One of the main objectives on the design of power converters working at high frequencies is the
reduction of the switching losses in the semiconductor devices, looking for a better efficiency or a
further increase in the working frequency. The resonant techniques have been developed as a way of
reducing these losses.
This paper describes two DC/DC converters based on the forward scheme but including nondissipative
snubbers that greatly reduce the switching losses, allowing an increase in both the
switching frequency and the rated power. The operation of the converters is analysed, with a special
emphasis on the energy balances.
The paper analyses the working conditions of the switching devices, explaining the special features of
the control strategy, derived from the resonant behaviour of the converter. |
