An inductive rotary joint system has a one phase rectifier for receiving a one phase AC input, generating a comparatively lower DC voltage, and a three phase rectifier for receiving a three phase input, generating a comparatively higher DC voltage. An AC p...

The switch has a power generator (23) for generating a pulsed direct current (DC) voltage or alternating current (AC) voltage from an input DC voltage (24). A resonance circuit comprises a resonance capacitor (28) and an inductive power transmitter for cou...

The method involves generating a short sequence of pulse of direct voltage, and short-circuiting a series-resonant circuit. Frequency of oscillation generated in the resonant circuit is measured, and a long sequence of more pulses of direct voltage is gene...

An inductive coupled power transmission circuit has a rotating transformer, comprising an AC voltage supply for feeding an AC voltage via a series capacitor into the primary winding of said rotating transformer and a load being coupled to the secondary win...