Electric lifting table control circuit capable of improving self-locking force of motor

The utility model relates to the field of electric lifting tables, and discloses an electric lifting table control circuit capable of improving the self-locking force of a motor, which comprises an overcurrent comparison circuit, an MOS (Metal Oxide Semiconductor) driving circuit, a positive and neg...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ZHOU ENYOU, SHAO ZHIQI
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The utility model relates to the field of electric lifting tables, and discloses an electric lifting table control circuit capable of improving the self-locking force of a motor, which comprises an overcurrent comparison circuit, an MOS (Metal Oxide Semiconductor) driving circuit, a positive and negative rotation interlocking circuit, a microprocessor, a current sampling circuit and the motor, the output end and the input end of the MOS drive circuit are electrically connected with the input end of the current sampling circuit and the output end of the forward and reverse rotation interlocking circuit through wires respectively. The wiring input end of the overcurrent comparison circuit is connected with the wiring output end of the reference current circuit through a wire, and the wiring output end of the overcurrent comparison circuit is connected with the input end of the trigger circuit through a wire. The novel electric lifting table control circuit can improve the self-locking capability of the motor an