The ignition circuit can conveniently be divided into two parts. One park is known as the primary windings (low-tension circuit) and the other part is the secondary windings (high-tension circuit).
点火回路按惯例可分成两部分，一部分是初级线圈(低压回路)，另一部分是次级线圈(高压回路)。
2
Hardware design of the main parts of the Bluetooth module is divided the application circuit power module, RS232 level translation module, Bluetooth module.
In this paper, a divided driving circuit for stepping motor controlled by FPGA is put forward, based on the analysis of the principle of stepping motor divided driving.