----- Original Message -----

From: [log in to unmask] href="mailto:[log in to unmask]">王春雨

To: [log in to unmask] href="mailto:[log in to unmask]">[log in to unmask]

Sent: Tuesday, November 15, 2011 10:00 PM

Subject: [TGAsia] 钽电容和二极管的作用

模拟器继电器板中，继电器的线圈两端反接二极管，二极管是什么作用？  在驱动继电器的MOS或者三极管关断时把线圈上的反向电压释放掉以保护管子.

继电器线圈正极接钽电容正极，但负极与电容负极不通。钽电容作用是什么？滤波还是灭弧？还是其他什么？

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