A Brief Analysis of the BLDC Driver Application Solution
2024-12-12 21:29:00
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BLDC driver application solution
1.The main BLDC driver solutions currently popular in the market
Square wave control algorithm: It is simple to calculate, easy to implement, and can achieve good control effects with low-cost hardware.
The contactless FOC control algorithm: With advantages such as high efficiency, low vibration, low noise and high response speed, it is gradually becoming the mainstream trend.
Sensing SVPWM/FOC control algorithm: With the continuous iteration and update of technological development, it has evolved from square wave control to sensing SVPWM and FOC.
2. Main control chip manufacturers and the advantages and disadvantages of their chips
Peak 岹 Technology:
Advantages: The products cover all key chips for motor drive control, including motor main control chips MCU/ASIC, motor driver chips HVIC, and motor-specific power devices MOSFET, etc. Technology entrepreneurship, focusing on the research and development and sales of dedicated chips for motor drive control, with a stable core R&D team.
Disadvantage: Domestic integrated circuit design enterprises started relatively late and still lag behind international giants in terms of scale and status, and are in a stage of continuous catch-up.
Naxin Microelectronics
Advantages: The NSUC1610 supports application scenarios with a peak current of 1A and integrates a pre-drive function. Integrate the LIN bus physical layer, low-power MOSFET array, DAC and dual-channel temperature sensors; It meets the Grade 0 automotive certification, with a temperature range of -40°C to 150°C and a junction temperature of up to 175°C.
Disadvantage: There is less information and it is impossible to conduct a comprehensive assessment.
Qinheng Microelectronics
Advantages: It offers a series of semiconductor solutions, covering key technologies such as motor control chips and motor drive algorithm architectures. The CH641 control scheme integrates a professional pre-drive chip, supports 12V I/O direct drive MOS, and supports USB PD and Type-C fast charging functions.
Disadvantage: There is less information and it is impossible to conduct a comprehensive assessment.
3. Approximate cost comparison of the scheme suite materials
Low-cost FOC solution: Utilizing MCU solutions specifically designed for motor drives, such as Lingdong, Lingou, and Xuanzhi, the on-chip resources of these MCUS are dedicated to motors. Their drive circuits are extremely simple and the cost performance of the chips is very high.
High-integration solutions: Single-chip and full integration have become a new trend. This design can integrate more devices and functions on a single chip, significantly simplifying peripheral circuits, reducing the number of peripheral devices, and lowering customers' costs.
4. Reasons for becoming a mainstream solution
Performance advantages: The contactless FOC control algorithm has gradually become the mainstream trend due to its performance advantages such as high efficiency, low vibration, low noise and high response speed.
Technological development: With the advancement of technology, control algorithms are constantly being iterated and updated, evolving from square wave control to the direction of perceptive SVPWM and FOC.
5. Application scope
Household appliances: such as fans, pumps and compressors, etc.
Industrial applications: such as industrial fans, oil pumps and water pumps, power tools, etc.
Automotive field: Thermal management applications for new energy vehicles.
6. The main project companies
Peak 岹 Technology: LONG engaged in BLDC motor drive control DEDICATED CHIP research and development, design and sales business.
Naxin Microelectronics: It has made in-depth layouts in the field of automotive motor driver chips.
Qinheng Microelectronics: It offers a series of semiconductor solutions, covering key technologies such as motor control chips and motor drive algorithm architectures.
7. Future Development Trends
Single-core high integration: The trend of the BLDC drive control chip industry technology towards single-core high integration and contactless FOC control is already very clear.
Contactless FOC control: The contactless FOC control algorithm has advantages such as high efficiency, low noise, and high response speed, and it is the future development trend.
