Zero crossing Control的意思|示意

One kind of sensorless control system for brushless DC motor based on DSP was introduced and the principle of back-EMF zero-crossing detection and realization method was discussed in detail.

介绍了反电动势过零位置检测的原理及实现方法，并采用了数字式转速、电流双闭环控制。

They include signal sampling circuit, man-machine interface circuit and control circuit, main chip interface circuit, zero-crossing triggering circuit, and communication circuit, etc.

它们包括信号采样电路、人机接口电路、主控芯片接口电路、过零触发电路及通讯电路等。

In this paper, the control distortion near the zero crossing point is magnified; a method to minimize the distortion is proposed.

本文中，在接近零交叉点附近的控制畸变被放大，提出了一种减小这种畸变的方法。

Through adding a zero-crossing comparator and optimizing the inverter switching logic, this method which is based on the traditional two-state hysteresis control can achieve three-state outputs.

该方法是在传统的两态滞环控制的基础上，增加过零比较器，通过优化逆变器的开关逻辑，从而实现滞环控制下并网逆变器的三态输出。

In this regulator system, a DSP controls bi-directional IGBT triggered and turn-off at zero-crossing to control different combination of secondary coil and realize AC voltage stabilization.

通过DSP作为控制器，利用补偿变压器输出可以正负补偿的电压与电网串联，从而实现输出稳定的交流电压。