Permanent magnet synchronous motor (PMSM) is widely used due to its advantages such as high efficiency, small size, simple structure and fast dynamic response. For the application of power tools, the overall scheme adopts intelligent power controller (SPC5L18A)+ power MOS(SVT042R5NL). The high speed holeless comparator algorithm is used for motor control, and the cost of electronic control is reduced by the Holeless scheme. At the same time, it has the advantages of small volume, large power and so on.

SPC5L18A is a high-performance controller developed specifically for motor control and CNC power control. It uses a single cycle 52 kernel, embedded 16K byte Flash memory, 256 byte internal data memory and 1K byte external data memory. It integrates six NMOS Pre-driver, two LDOs, two high-speed operational amplifiers, four comparators, high-speed ADC and multiplication and division unit (MDU). At the same time, the built-in 16MHz high-precision oscillator, multiple general timers, UART, SPI and special timer T6L for motor control so that users can design such systems with maximum flexibility and minimum overall cost.

Topology

The overall scheme topology of hand-held power tools is as follows:

電動工具拓撲（新）.png

大香蕉网视频_香蕉影视网站APP_91香蕉色网站_91香蕉视频污网站 日韩免费一区二区在线观看,小泽玛利亚无码,失踪少女,揉搓校花雪乳高耸娇喘,男女怕怕心态图片

大香蕉网视频_香蕉影视网站APP_91香蕉色网站_91香蕉视频污网站日韩免费一区二区在线观看,小泽玛利亚无码,失踪少女,揉搓校花雪乳高耸娇喘,男女怕怕心态图片