The HBS758S high-voltage digital hybrid servo drive is a new hybrid servo drive developed by Leisai Company based on more than ten years of stepper and servo development experience. It adopts the latest dedicated motor control DSP chip and applies vector closed-loop control technology, which can completely overcome the problem of open-loop stepper motor loss. At the same time, it can also significantly improve the motor's high-speed performance, reduce the motor's heat generation and reduce the motor's vibration, thereby improving the machine's processing speed and accuracy as well as reducing the machine's power consumption. In addition, when the motor is continuously overloaded, the drive will output an alarm signal, which has the same reliability as an AC servo system. The HBS758S is compatible with the installation dimensions of the traditional 86 series stepper motors, and the traditional stepper driver scheme is easy to upgrade, and the cost is only equivalent to that of the traditional AC servo system.