This design example report describes a 20 W high efficiency TRIAC dimmable, power factor corrected LED driver employing LYTSwitch™-4 LYT4314E. This design operates an input voltage ranging from 190 ...
To understand the technology associated with practical LED dimming we first have to look at the technology associated with triac-based incandescent lamp dimmers. The typical triac lamp dimmer circuit ...
Fig 1. This efficient pre-regulator for a dc power supply uses an optical feedback loop to minimize dissipation rather than the traditional optically isolated TRIAC drivers. Fig 2. The PSpice ...
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