motor drive circuit

Abstract

The invention discloses a motor drive loop which is used for driving a single motor system to ensure that the single motor system can be suitable for a system designed by adopting a plurality of motors. The motor drive loop comprises a drive unit and a signal integrating unit, wherein the drive unit is coupled to a rotating speed control signal generating unit to receive a rotating speed control signal, the drive unit drives one motor to operate according to the rotating speed control signal; the signal integrating unit is coupled to the drive unit, and comprises a memory unit and an arithmetic unit which are mutually coupled, rotating speed information, respectively corresponding to different rotating speed control signals, of the plurality of motors is stored in the memory unit, the arithmetic unit is used for rotating speed values, respectively corresponding to rotating speed control signals received by the drive unit, of the plurality of motors according to the rotating speed control signals received by the drive unit and the rotating speed information in the memory unit so as to generate a plurality of motor rotating speed analog signals.

Description

technical field [0001] The present invention relates to a motor drive circuit, in particular to a motor drive circuit for driving a single motor and generating several rotational speed analog signals. Background technique [0002] Please refer to figure 1 and 2 As shown, it is an existing dual-motor fan F t , can be applied to computer mainframes, workstations, electromechanical boxes, network communication equipment or other systems that require heat dissipation. The Dual Motor Fan F t A first motor M1 and a second motor M2 are included, and the first motor M1 and the second motor M2 respectively drive a first fan wheel I1 and a second fan wheel I2 to rotate. Thereby, compared with the fan with only a single motor, the dual-motor fan F t It can generate larger static pressure and air volume, so as to make the heat dissipation effect more excellent. [0003] However, since different system configurations and computing traffic will result in widely different heat dissip...

AI Technical Summary

Problems solved by technology

Moreover, if the single-motor fan F is intended to replace the dual-motor fan F t , the rotational speed M of the motor of the single-motor fan F is bound to be different from the rotational speed of the first motor M1 or the second motor M2, so there has been no development on the market that can replace the dual-motor fan F t The single motor fan F product

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