A High-Voltage Fast-Speed Pulse Generator With Current-Mode Dead-Time Control Comparator for Shoot-Through Current Suppression

This letter presents a high-voltage fast-speed pulse generator with the suggested current-mode dead-time control (DTC) comparator. Measurements show that the propagation delay is in the range from 8.09 to 14.63 ns between the input pulse VIN and the output pulse VOUT and the rising and falling times of output pulses are 5.64 and 2.86 ns, respectively, for 20-V output pulses with the capacitive load of 22 pF. The integrated wide-band I–V converter for easy monitoring of shoot-through currents reveals that shoot-through currents during high-to-low output transition can be effectively suppressed with the DTC comparator. The total power consumption of the suggested pulse generator is reduced to 154.0 mW with the DTC comparator enabled in comparison with the power consumption of 264.5 mW when the DTC comparator is disabled at the operation frequency of 7 MHz with the output load of 22 pF and the supply voltage of 20 V.