摘要
针对实际功率放大电路中存在的反向充电的问题,提出了双向放电的优化解决方案;针对电路中耦合电容器件导致驱动信号占空比调节范围窄的问题,提出了去除耦合电容器件,增加防共态导通保护电路的解决方案,并对优化后的电路进行了仿真和试验。结果表明,优化后的驱动电路可以解决目前存在的问题,获得更优的机抖驱动信号。
Aiming at of the problem of reverse charging in the actual power amplifier circuit, an optimization solution of bidirectional discharge was proposed. And for the narrow adjustment range of the duty cycle of the driving signal caused by the coupling capacitor component in the circuit, a solution to remove the coupling capacitor and increase the anti-common conduction protection circuit was also put forward. The simulation and test of the optimized circuit are carried out. The results show that the optimized drive circuit can obtain a better dithered drive signal.
作者
徐步峰
罗延明
滕晓燕
马文宏
郑毅
XU Bu-feng;LUO Yan-ming;TENG Xiao-yan;MA Wen-hong;ZHENG Yi(Beijing Institute of Automatic Control Equipment,Beijing 100074,China;Hiwing Technology Academy of CASIC,Beijing 100074,China)
出处
《导航定位与授时》
2019年第2期105-110,共6页
Navigation Positioning and Timing
关键词
数字机抖控制
功率放大电路
机抖驱动
保护电路
Digital dithered control
Power amplifier circuit
Dithered driving
Protection circuit
