Patent attributes
A system for contactless energy and data transfer has mobile and base parts. The mobile part contains a mobile part transmitter/receiver device transmitting and receiving a data signal, a mobile part transceiver and a current supply having a mobile part resonant circuit receiving an energy signal. The base part contains a base part resonant circuit for emitting the energy signal from an energy signal generator to provide a supply voltage to the current supply, a base part transmitter/receiver device receiving and transmitting the data signal, a base part transceiver, and a pulse width modulator. An impulse width modulator provides the pulse width-modulated signal which cyclically operates the energy signal generator to emit the energy signal in pulse bundles. A parameter specification provides a control signal setting at least one parameter of the pulse width-modulated signal to a value where sufficient energy transfer occurs to provide the supply voltage.
