中文摘要：

压电陶瓷在内燃机燃油喷射，精细电火花加工等高动态应用，对压电陶瓷驱动电源响应频率、输出功率提出更高要求。该文设计并研制了一种新型高动态大功率桥式压电陶瓷驱动电源，采用桥式输出设计，实现了电源转换速率、输出功率均增加1倍，输出带宽达到10kHz。其控制部分采用直接数字频率合成技术（DDS）实现正弦、三角、锯齿和方波的输出。

英文摘要：

Due to the high-dynamic applications of the piezoelectric actuator in the fields of internal combustion engine fuel injection and fine electrical discharge machining etc. ,the higher frequency response and output power are demanded. In this paper,a new high dynamic bridge high-power piezoelectric amplifier is developed. The bridge output is designed,a power conversion rate and the output power are doubled, and the output bandwidth is of 10 kHz. Direct Digital Synthesizer（DDS） technology is applied to achieve the sine, triangle, sawtooth and square wave output.