Leading-Edge vs. Trailing-Edge Dimmers

There are certainly advantages and disadvantages to a leading edge dimmer, and the same can be said about trailing edge dimmers. Following the two will be explored briefly. With an incandescent light bulb, domestic dimmers promote a resistance that is characterized as ideal by many. As a result, domestic dimmers are often used in support of LED lamps which act as replacements for traditional options. That said, when combining incandescent and LED worlds, designers are often confronted with challenges that were not previously anticipated. These challenges may include low current draw and a luminous response that is very quick, even in regard to minor fluctuations of power. But depending on what kind of dimmer you’re using, the kind of damper or bleeder circuits of the LED drivers in question may change; as will the necessary switching topology for operational optimization.