差分放大器的优势 However, this influence(指RF的二次谐波和本振的二次谐波混频产生基带的二次谐波) will be negligible if a differential down-converter circuit design is employed since the common mode rejection of the differential circuits can significantly suppress the even-order distortion.   ...
电容充电电流公式 和 电容放电公式(和充电公式的区别在于初始条件不同) 电容充电过程中,充电电流越来越小,原因是: A capacitor stores electrical energy in an electric field. When a capacitor is being charged, the electric current flowing into the capacitor creates an electric field between its ...