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Вопрос 395

What is the purpose of connecting equal-value resistors across power supply filter capacitors connected in series?

  1. Equalize the voltage across each capacitor
  2. Discharge the capacitors when voltage is removed
  3. Provide a minimum load on the supply
  4. All these choices are correctПравильный ответ

Объяснение

Equal resistors across series filter capacitors do all three jobs at once: they force the DC voltage to divide equally despite unequal leakage, they bleed the capacitors down after power is removed, and they present a minimum load to the supply.

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Вопрос 395: What is the purpose of connecting equal-value resistors… · FCC Amateur Extra Class (Element 4) · Questena