Transformation of a primary voltage into a secondary voltage using a switched supply

摘要

The switched power supply (10) is configured as a resonance coupler with two oscillators. Control of the primary circuit (38) is provided by a drive circuit (20) that is a transistor full bridge. In the secondary circuit there is a rectifier (57). Both oscillator circuits are magnetically decoupled by a transformer (46). The complete unit is produced as a micro integrated circuit.