Power supply circuit

摘要

In a power supply circuit having at least two voltage converters which are single-ended converters, the inputs are connected to a common voltage source. All the voltage converters operate at the same switching frequency. The duty ratio is controlled by a separate control circuit in each voltage converter. The voltage converters are split into two groups in such a manner that a synchronisation circuit of each group prescribes a first time interval in push-pull operation, in which interval the voltage converters may be in the conducting phase, and prescribes a second time interval in which the voltage converters must be in the blocking phase.