The symmetric ternary current-mode CMOS circuits designed by using this theory not only have simpler circuit structures and correct logic functions, but also can process two-way signal.
In order to ensure A phase and B phase circuits are symmetric, digital potentiometer X9C503 with exterior pressed key in the feedback amplification circuit is designed.
在反馈放大电路设计时,采用数字电位器X9C503与外部按键配合,达到了A、B两相电路的对称性。
3
On the basis of symmetric-equivalent circuit, the high frequency equivalent circuit and transmission equations of power cable have been developed.