PWM Ring Generator Operates At Up To 325V

Generating high voltage outputs without using step-up transformers, HV430WG PWM Ring Generator operates at up to 325V with 5V CMOS logic. Ring signal voltages up to 105V_RMS for loads up to 50 RENS can be obtained, depending on the MOSFETs selected. Pulse-by-pulse over current protection is implemented on both MOSFETs, and the RESET input functions as a power-on reset and as a low voltage lock-out to allow for hot swapping. Control can be accomplished as a single-input mode with one input signal controlling both outputs in a complementary fashion, or in a dual-input mode with each output controlled independently using logic inputs to the P_IN and N_IN pins. A logic-level Enable input lets the ring generator output be placed in a high-impedance state.