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Question:

Electromagnetic relay switching frequency can reach 100HZ or so?

Electromagnetic relay switching frequency can reach 100HZ or so?

Answer:

can not be used. 1s / 100Hz = 10ms, 10 milliseconds switching time, has been demanding, the relay switching time in tens of milliseconds or so, by the electromagnet and armature mechanical structure can not meet the long time so fast frequency switch action, the other , Such a frequent switch off the power of the coil will not be able to withstand the intense current and voltage changes fever burn short circuit, AC-driven electromagnetic relay is likely to burn a while. Want to meet such a fast switching frequency, it is best to use power transistors, transistors and other power electronic original, although the solid-state relay can be used, it is estimated that it will take too long.
May 9, 2017
Reed relays may be able to reach. But the contact capacity is very small.
May 9, 2017
That is it not a bitterness? Use solid state relays
May 9, 2017

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