Function description: external control board, small size, great power and high efficiency. Linear HALL speed control. For different tools, the software will be different too. Electric drill is open loop controlled, several kinds and multifunction (one of the controller gets the function of fast vibration; electric saw normally is closed loop controlled and has several types.
Products from outside of China are mostly with HALL mode from which strong and powerful starting up can be achieved, but the disadvantage of this mode is obvious as medical tools need to be steam sterilized at high temperature which will cause damage to HALL device.
Our company applied advanced algorithm and found a solution for strong and powerful starting up under no HALL mode, the solution simplifies motor production and reduces cost and makes motor failure rate lower, meanwhile increases motor efficiency (increased 3%~5% more than that of motors with HALL) and performance consistency and reliability on motor mass production.

Protective functions: over current protection (only for some of the products); high voltage or low voltage protection; overheat protection; motor blocking protection; starting up protection etc.