Tag Archives: Circuit Protection

Ears and Speakers Protector

Posted on December 2, 2011 by Rend

Sometimes the output volume of amplifier is too high and hurts our ears. As well as hurting your ears, this incident could damage your loudspeaker. The circuit below can be used to protect both our ears and our loudspeakers from … Continue reading →

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TRIAC Crowbar For AC Or DC Lines

Posted on April 7, 2011 by Rend

A TRIAC Crowbar circuit which works for both AC and DC voltage is shown in the schematic diagram below. This circuit provide overvoltage protection for electronic or electrical equipment against excessive supply voltage.  Crowbar circuit provide two level of protection. … Continue reading →

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Transistor Overvoltage Crowbar Protector

Posted on March 2, 2011 by Rend

This is a transistor crowbar circuit for overvoltage protection. This circuit is used to protect any devices, when the overvoltage occurs. This circuit consist of diode, transistor, and resistor, and a fuse.  The device that needs to be protected should … Continue reading →

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