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单词 overvoltage crowbar
释义 overvoltage crowbar
[¦ō·vǝr¦vōl·tij `krō´bär]
ELECTRICITY
A circuit that monitors the output of a power supply and prevents the output voltage from exceeding a preset voltage, under any failure condition, by having a low resistance (crowbar) placed across the output terminals when an overvoltage occurs.
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