Transmitter-Side On–Off Keying Modulation
As mentioned in Chap. 7, transmitter-side OOK modulation can realize MEO without adding any extra components or changing any hardware of a WPT system which typically consists of an inverter in the primary side and a diode bridge rectifier in the secondary side. This chapter introduces the OOK modulation to maintain high-efficiency operation for SS WPT systems over a wide load range. By determining the optimal input voltage for a given output voltage in an SS WPT system, MEO can theoretically be achieved independently of the load.