The new version of 22S can directly adjust the working voltage of 90V DC. The new version adds heat sink and confluence bar to the MOS tube, so it has better performance.

The brushless ESC is to control the speed of the motor by adjusting the duty cycle of the motor, which is to power on quickly, and then power off quickly ,usually this frequency is very fast (for examples 8kHz), so we see that the motor spin smoothly . when duty cycle is zero,the motor is stop, when the duty cycle rea……

Usually, the Flier ESC no need calibrate the throttle range, it can automatically get the throttle range. but if you insist to do, you can use the Usb linker to do, you can set the ini_point(1.0-1.5mS) or end_point(1.7mS-2.0mS) for the range of the throttle