摘要
用函数发生器 ICL80 38在锁相环 ( PLL)中作为压控振荡器 ( VCO)产生频率高稳定的同步等幅正弦波 ,可作为 SPWM中调制信号源。此方案成功地应用于 SPWM调制式电能表检验台用工频电压源的研制中。
The high stable frequency and synchronous sine wave with constant amplitude can be obtained by using the function generator ICL8038 in PLL as VCO. This sine wave can be used as a modulation signal source in SPWM. The scheme has been successfully applied to the developing of the 50Hz sine-wave invertion voltage source which is an important component of the electric energy meter accuracy test equipment.
出处
《电子工程师》
2001年第9期41-42,共2页
Electronic Engineer
