The device used integrates itself the light-electronic isolation,the zero-crossing detection and the zero-cros sing triggering functions, with small size which greatly reduces the whole circ uit complexity.

• 引入 Motorola公司的新型过零器件 MOC30 61,该器件集光电隔离、过零检测、过零触发功能于一身 ,且器件尺寸小 ,极大地降低了电路的复杂程度。