A PWM controller with table look-up for DC-DC class E buck/boost conversion

A new class E switching power regulator controller for buck/boost conversion is proposed, which it has the characteristic of programmable PID look-up table. The proposed regulator controller employs hysteresis comparators, an error process unit (EPU) for voltage regulation, a programmable PID compensator and a digital PWM (DPWM). Based on the programmable table look-up mechanism, the proposed controller is able to access external memory for different look-up tables in the applications of power regulation. The proposed controller for class E buck/boost converters has been validated with simulation results.