目的 研究开发喷墨印刷过程中压电陶瓷的驱动电源。 方法 提出以单片机 AT89C52 和 CPLD为控制核心的驱动电源设计方案， 设计考虑了抗干扰、纹波和相位补偿的影响， 开发控制电路板和编写控制软件， 并进行实验测试。 结果 得到了 ± 100 V 的电压脉冲， 输出电流 0~5 A， 脉冲宽度数字可调。 结论 电源具有精度高、纹波小、驱动能力强和稳定性好的特点， 为开发能应用于喷墨印刷的驱动电源设计提供了理论和技术支持。

Objective To study and develop a driving power for piezoelectricity used in ink-jet printer. Methods In this paper, the circuit design method of piezoelectricity ceramic power supply was proposed， which was based on AT89C52 and CPLD. The effects of anti-interference, ripple and phase compensation were taken into account during the designing process. The control circuit board was developed and the control software was programmed. At last, experimental validation was conducted. Results The maximal output voltage was ±100 V( peak to peak) and its output current was in the range of 0-5 A. The width of driving pulse was digital adjustable. Conclusion The unique features of this design included high precision, low ripple, strong driving capability and high stability. This study could provide theoretical and technical support for design of inkjet printing drive power.