piezoelectric ultrasonic transducer drive generator

Piezoelectric transducer is a kind of transducer of acoustic energy and electrical energy. Its working efficiency directly affects the performance of the whole ultrasonic measurement system. The design of driving circuit of piezoelectric transducer involves impedance matching and pulse transformer design, which needs not only a certain theoretical basis, but also a technology of practical experience. It brings certain difficulties to the design of researchers and researchers. At present, the driving circuit of piezoelectric transducer in China is mainly designed by two methods: One is direct drive: using a fixed frequency, high-power semiconductor switching devices, such as field effect transistors, controllable direct drive piezoelectric transducer work, the transducer is directly powered by the power supply voltage.