设计一个合适的保护开关的最难点是适合印制板上的所有布线,并保证适当的电压空间。
The hardest part of designing a properly guarded switch is to fit all the traces on the board and maintain proper voltage spacing.
保护通常是通过屏蔽继电器实现的,并且布线在印制板上。
The guard is usually implemented with shielded relays and traces on a printed circuit board.
其中包括对印制板的布线、电容性耦合、数字电路的噪声容限和传输线的探讨。
It includes wiring of printed circuit board, electric capacity coupling, tolerance of digital circuit noise, and transmission line.
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