Pulse ultrasonic transmitting circuit is designed based on Boost principle

and the transient response model of the circuit is established.The selecting basis of the circuit parameters is presented according to the analysis of the model.The circuit can generate pulse voltage more than 100V by a power supply of 5V without high voltage DC transformer.The power consumption of the circuit is low with the average current of 30 mA.This circuit also has the properties of high load capacity by using a transformer with the turn ratio 6/15 to achieve impedance matching

tunable width of the transmitting voltage pulse and repetitive frequency is tunable.