Radio Amateur Quiz Canadian License

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Question A-004-001-010

In a high voltage power supply, why should a resistor and capacitor be wired in parallel with the power-supply rectifier diodes?

Correct Answer

To equalize voltage drops and guard against transient voltage spikes

Explanation

When diodes are in series (for higher PIV), parallel R-C networks across each diode help equalize voltage distribution due to differing reverse leakage currents and protect against fast voltage transients (spikes) that could exceed a single diode's PIV.

Warning: Generated by AI