A crowbar is a circuit which is used to protect a_____________?
Correct answer: A. voltage sensitive load from excessive dc power supply output voltages
- A. voltage sensitive load from excessive dc power supply output voltages
- B. current sensitive load from excessive dc power supply output voltages
- C. voltage sensitive load from excessive ac power supply output voltages
- D. current sensitive load from excessive ac power supply output voltages
Explanation
A crowbar rapidly short-circuits or clamps an excessive DC supply voltage, causing protection circuitry to disconnect the supply before the voltage-sensitive load is damaged. It is commonly used against DC overvoltage transients.
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