Delay control circuit of DC motor

Abstract

The invention discloses a delay control circuit of a DC motor. The delay control circuit of the DC motor comprises a driving power module, a battery charging-discharging module, a motor driving module and a control module MCU; the driving power module is used for converting AC into a DC power supply which is regulated down and stabilized to be 12V; the battery charging-discharging module capable of charging and discharging a battery comprises a charging circuit, and a delay discharging circuit controlled through the MCU, and the battery charging-discharging module discharges to supply power to the motor driving module; the motor riving module is used for controlling a three-phase motor to work; the three-phase motor is controlled through six signals of the MCU, wherein the six control circuits are supplied by an internal circuit of the MCU. The delay control circuit of the DC motor has the function of charging and discharging the battery, so that the motor delaying work can be done without an external power supply, and the motor delaying work can be achieved even after the external power supply is switched off; therefore, devices can be effectively cooled to ensure the safety; the delay control circuit is simple, the energy consumption is low, so that the cost is effectively decreased, and a user can use conveniently.

Description

technical field [0001] The invention relates to a control circuit, in particular to a delay control circuit of a DC motor. Background technique [0002] The existing delay control circuit is basically an external delay control circuit, which controls the delay work of the motor through a time relay. Its premise is that there must be an external power supply and an external delay control circuit working at the same time. The circuit is relatively complex, and the volume is large, the energy consumption is high, the relative cost is increased, and it is not convenient for users to use. Contents of the invention [0003] In view of the above-mentioned problems in the prior art, the object of the present invention is to provide a delay control circuit for a DC motor that has low energy consumption and can realize delay operation without external power supply. [0004] In order to achieve the above object, the technical solution adopted in the present invention is: a delay con...

AI Technical Summary

Problems solved by technology

[0002] The existing delay control circuit is basically an external delay control circuit, which controls the delay work of the motor through a time relay. Its premise is that there must be an external power supply and an external delay control circuit working at the same time. The circuit is relatively complex, and the volume is large, the energy consumption is high, the relative cost is increased, and it is not convenient for users to use

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