Industry White Papers

Dimming Control using a PWM Signal

April 01, 2018 by Infineon Technologies AG

This White Paper explains how a Pulse Width Modulation (PWM) signal can be used for analog dimming of the output current of a Light Emitting Diode (LED) lighting controller. This White Paper provides information about how the PWM duty cycle maps to the output current and how the PWM duty cycle is measured in a digital controller. Possible faults are discussed which can cause flicker in light and solutions to these faults are provided.

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