Electrical
Relationships of DC line voltage, three-phase 6-step wave output, SPWM output and SVPWM output.
Relationships of DC line voltage, three-phase 6-step wave output, SPWM output and SVPWM output. Assuming `$$V_\mathrm{dc}$$` is DC voltage.
Digital Controller
让单片机（如STM32）在编译时自动嵌入固件CRC32，以实现Bootloader对固件的完整性检查
Let the microcontroller (such as STM32 MCU) compiler automatically embed the CRC32 value for firmware integrity check in bootloader. 通过在FLASH存储空间的最末尾设置两个int32大小的crc32Value和crc32Value2来实现嵌入式程序Bootloader自检。检查过程可以统一为，检查crc32Value的值是否正确，若不正确，检查crc32Value2的值是否正确。若都不正确，则程序错误，进行bootloader错误处理阶段。
Motor
The modulation index of pulse width modulation (PWM)
For the three-phase PWM inverter, there are three commonly used coefficients to indicate the DC voltage utilization level, i.e. Modulation Level (调制度) M = \cfrac{V_R}{V_T} where V_R is the magnitude (note, not fundamental amplitude) of modulation wave, V_T is the magnitude of carrier wave. When M \leq 1, there is Read more…