【摘要】 压电晶体执行器的电容特性决定了它与电磁阀有着不同的驱动方式,在分析优化前驱动电路所存在缺陷的基础上,对该电路进行了优化设计,将优化后的压电晶体充电、放电核心驱动电路进行了Pspice仿真,并对充放电限流电感值进行了Pspice参数扫描分析。仿真结果与实际驱动电路输出基本吻合,且给出了限流电感的合理参数值,达到了优化的目标。更多还原

【Abstract】 The capacitance characteristic of piezoelectric injector made its driving mode different from the electromagnetic valve.Based on the disadvantage of driving circuit,the hardware circuit was optimized,the Pspice simulation of optimized piezoelectric crystal charging and discharging driving circuit was done,and the Pspice parameter sweep analysis of limit current inductance value was carried out.The simulation result basically coincided with the real output of the driving circuit and the reasonable value of limit current inductance were determined,which reached the optimization purpose.更多还原