Freewheeling Diodes Provide Power Supply Protection

Posted by Bill Martin on Jun 18, 2014 5:23:02 PM

Say that we have a circuit with a power supply and an inductive load on it. From the instant that electrical power is supplied to the circuit, the inductive load will accumulate stored energy. If an attempt is made to open the path with a switch, this energy will generate a high reverse voltage and arc across the contacts of the switch. This could damage the switch, load and other circuit components.

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Topics: application note, dc power, DC Power-Supplies, freewheeling diode

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