Principle of dimming switch

- Oct 14, 2017-

Dimming switch is a convenient electronic device, through the knob or slider can be brightness from almost no light gradually adjust to the maximum brightness, dimming switch is by adjusting the size of the resistance inside it to control the height of the voltage through the lamp, its most basic principle is to change the voltage added to the load, by single or bidirectional SCR to complete, By manually adjusting the potentiometer to change the phase angle of the control level to control the conduction degree of SCR, that is, to complete the purpose of changing the voltage.