An led light circuit principle and a series of questions about it
3. The group control Multiple LED groups are grouped and controlled using simple pacers. Above 1.2. The two methods can be made no adjustable resistance knob control. As a result of the PWM module technology mature, cost reduction. It is difficult to judge from the aspects of price is to use of what way curtains. However, adjustable resistance itself is not a very reliable components. Often because of dirt to enter or not manufacturing process, the operating adjustable resistance with instantaneous jump empty fault, the light will flash. The flashing in PWM mode is not obvious, in the case of using linear current technical regulation more apparent.
Constant flow power control The analog linear technology can easily adjust the size of the current.
There are three kinds of LED dimmers Pulse Width Modulation (PWM) Digitizing the power source and controlling the air ratio of the square wave to achieve the goal of controlling the current.
