What is the principle of LED dimming, which dimming mode is used in LED dimming?
PWM wave width control dimming (Pulse Width Modulation): the power supply square wave digital, and control the square wave duty cycle, so as to achieve the purpose of controlling the current.
From the diagram, this dimming is controlled by silicon dimming, but do not know why it is also connected to a Power Supply, the normal LED SCR dimming drive no longer need this, whether you can provide Powe, Supply parameters.As for the dimming principle of SCR, is to change the input energy (220V sine wave cut some), concrete can be Baidu search data, noting that the SCR drive is not compatible with the triac dimmer all, incompatible often at some point or a range will cause light flash
Packet control: the grouping of multiple LED is controlled by a simple grouping device.Control mode of constant current power supply for LED dimming.
Constant current power regulation: analog linear technology can easily adjust the size of the current.
