Switching power converter with efficient switching control signal period generation

A power control system comprises a switch and a controller, the controller is a control signal of changing reacts to the time-variable voltage power supply signal by a production to as follows at least one: athe (i) control signal cycle and transmission are counter-trend with the switch rectifier connected load's determining power; the (II) control signal cycle and voltage power supply signal transient voltage layer of the counter-tendency; The direct tendency with a checking door) control signal cycle and time-variable voltage power supply signal line voltage layer. At least one example, wherein a power factor correction, the controller for realizing with a switch dipole and transmission of switch relative to the switch rectifier's efficient associated between the instantaneous power.