Today, thanks to the development of MCU technology, motor products can be improved in terms of lower cost and higher efficiency. It is worth mentioning that recently, Guangdong Huaxin Weite launched swm201, swm20d, swm20p motor drive chip series and brushless DC motor application solutions, which combine technology and specialty. They can provide customers with extraordinary performance and simplicity, so as to meet their needs and enhance the market competitiveness of their products.

Today, thanks to the development of MCU technology, motor products can make progress in terms of lower cost and higher efficiency, and make a deeper breakthrough in the field of electronic control, so as to achieve the ideal state of variable speed motor control and optimization of motor efficiency, and reduce the design and cost of additional application devices.

Based on brushless DC motor, through professional MCU products, controlling brushless DC motor to eliminate brush wear and arc mechanism, to improve the working life of motor has become a consensus in the industry. But with the emergence of modern products, there are more and more new demands for high-performance motor control, such as fan lamp, lawn mower, strong exhaust fan and other emerging products.

Therefore, at present, the swm201, swm20d, swm20p motor driver chip series and brushless DC motor application solutions are launched by Guangdong Huaxin micro, which can provide customers with extraordinary performance and simplicity, so as to meet their needs and enhance the market competitiveness of their products. It is worth mentioning that in the field of motor application and solutions, Huaxin micro has rich R & D experience and professional customized solution service, which adapts to the mainstream application demand environment in the market.

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For example, swm201, swm20d, swm20p Series MCU microcontroller products can meet many motor applications in the current market, such as low-voltage 12v-24vdc floor fan, air purifier, water pump, ceiling fan and other markets; It is suitable for low voltage motor market such as 12v-24-48v-54v-120vdc.

On the one hand, MCU products based on innovative technology also have high efficiency, high torque inertia ratio, low noise, low EMI, higher speed performance and better thermal efficiency in Brushless DC motor. For example, swm201 series chips integrate independent 4-channel 16 bit PWM, and the complementary mode can be expanded to 8 channels. The hardware can complete the interaction with ADC. At the same time, a high-performance 32-bit armcortex-m0 core is built as the operation core, and the working frequency can reach up to 60MHz, which makes the developers operate more simply and quickly.

On the other hand, in many fields of motor control, MCU with fail safe clock monitor can improve the reliability of digital control and reduce the development cycle. For example, swm201 series chip has an on-chip clock source with 30MHz and 60MHz accuracy up to 1%, a 6-bit watchdog timer, overflow can trigger interrupt or reset chip, and a built-in low-power timer module, with an internal 32KB clock, sleep count and self wake-up, which allows developers to adjust their flexibility according to the requirements.

Market application

Electronic motor control in household electronic equipment has higher requirements for MCU of motor control peripheral, and it also needs to meet the mandatory national standard of motor energy efficiency. Swm201 series chip provides built-in LDO power supply voltage range of 2.5V to 5.5V, undervoltage detection, multi-stage undervoltage interrupt and reset selection. Can help engineering is to adjust the power of the motor according to the actual situation.

The power consumption of fan and fan lamp is proportional to the cube root of shaft speed, and the decrease of speed will affect the decrease of power consumption. SWM20P

The integrated p-n type mosdriver, in the use of voltage range of 8-40v, driving current capacity of 50-80ma

At the same time, the switch time is 260ns / 220ns, and the motor can be controlled with variable speed to save energy.

At present, in the product layout of many low-voltage motor markets, Huaxin micro not only integrates the high-performance armcortex-m0, but also brings higher performance and acceptable price.

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