A drive circuit for a direct current motor
CN224862969UActive Publication Date: 2026-10-16CHINA HIGHWAY VEHICLE & MASCH CO LTD
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Patent Information
- Application Number
- CN202522450627.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-19
- Publication Date
- 2026-10-16
- Estimated Expiration
- 2035-11-19
AI Technical Summary
Technical Problem
若需要驱动48V电机和24V电机，通常需要配备两套不同的驱动电路，这不仅增加了设备的成本，还使得设备的体积增大，安装和维护不便
Benefits of technology
本实用新型通过设置电压检测模块和电压调节模块，结合驱动控制模块的控制作用，能够实现单套驱动电路对48V电机和24V电机的兼容驱动，无需配备多套驱动电路，有效降低了设备成本，减小了设备体积，方便安装和维护。
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model relates to a kind of driving circuit of direct current motor, it is related to motor drive technical field, including power input module, drive control module, isolation circuit module and motor drive module.Power input module adopts DC-DC conversion circuit in combination with LDO linear power supply, and the adaptive voltage is output by adjusting sliding resistance;Drive control module adopts microcontroller output PWM control signal;Isolation circuit module uses SN74LVC125APWR chip to realize signal buffering isolation;Motor drive module controls motor operation by H bridge circuit.The utility model can be single circuit compatible 48V and 24V motor drive, reduce equipment cost and volume, improve voltage conversion efficiency and motor operating stability, applicable to industrial production, transportation, smart home and multiple fields.
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