A DC motor control circuit capable of interactive communication with the outside world

Abstract

The invention discloses a direct current motor control circuit capable of interactively communicating with the outside. The direct current motor control circuit comprises a first triode, a second triode, a relay, a diode, a CMOS (complementary metal oxide semiconductor) power tube, a first capacitor, a second capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor and a motor controller, wherein the relay is a contact set type relay. The direct current motor control circuit also comprises a third triode, a fourth triode, a fifth triode, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor and a twelfth resistor. The direct current motor control circuit has the beneficial effects that the direct current motor control circuit can interactively communicate with the outside only by additionally arranging a plurality of triodes and resistors based on a conventional direct current motor control circuit under the condition of no additional communication module, and is low in manufacturing cost and high in practicability and signal interactivity.

Description

technical field [0001] The invention relates to the technical field of motor control, in particular to a DC motor control circuit capable of interactive communication with the outside world. Background technique [0002] see figure 1 , an existing DC motor control circuit shown in the figure, including transistors Q1, Q2, relay U1, diode D1, power tube CMOS, capacitors C1, C2 and resistors R1, R2, R3, R4, R5, R6, R7 and the motor controller, the relay U1 is a contact group relay. The base of the transistor Q1 is connected to the control signal input port COM1, and its collector is connected to the static contact 3 of the relay U1 through the resistor R1, and then connected to the motor power supply VCC, and its emitter is connected to one end 2 of the coil of the relay U1, and the resistor R2 One end of the capacitor C1 and one end of the capacitor C1 are connected in parallel and grounded; one end 1 of the coil of the relay U1 is connected to the common connection end of ...

AI Technical Summary

Problems solved by technology

[0005] However, the existing DC motor control circuit only has the function of controlling the motor and has no communication function. In the absence of a communication module, the circuit cannot achieve the communication purpose of human-computer interaction, which causes great difficulties for product after-sales tracking and maintenance.

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