Motor controller overcurrent protection circuit

Motor controller overcurrent protection circuit

A motor controller overcurrent protection circuit relates to the technical field of motor controller protection and comprises an MOS tube V1, a hysteresis comparator, a triode V2 and a triode V3, the MOS tube V1 is connected with a motor and the hysteresis comparator, the hysteresis comparator is co...

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Hauptverfasser: HUANG RUI, LIU KAI, LONG MEIHE
Format: Patent
Sprache:chi ; eng
Schlagworte:
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
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creator HUANG RUI
LIU KAI
LONG MEIHE
description A motor controller overcurrent protection circuit relates to the technical field of motor controller protection and comprises an MOS tube V1, a hysteresis comparator, a triode V2 and a triode V3, the MOS tube V1 is connected with a motor and the hysteresis comparator, the hysteresis comparator is connected with the triode V3, the triode V3 is connected with the triode V2, and the triode V2 is connected with the MOS tube V1; the hysteresis comparator is connected with the triode V3 through the resistor R6, and the triode V3 is connected with the triode V2 through the resistor R7. Compared with the prior art, a negative feedback network is cancelled, the influence that small signal fluctuation easily generates large errors is solved, the MOS tube is used for replacing a high-precision sampling resistor, and the anti-interference capability is high; when an over-current signal is input through the voltage drop generated by the on-resistance of the MOS tube, the over-current protection action is triggered by hard
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subjects CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
title Motor controller overcurrent protection circuit
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