Question.4
Kevin needs to control the LED brightness smoothly and accurately from 0 to 100% brightness, continuously. But he started observing LED flickering especially in lower brightness range! What should he do?
Select Answer
Increase PWM resolution.
Increase PWM frequency.
Increase the PWM waveform amplitude.
Decrease resistor value used in series with the LED.
All of the options.
LED needs to be replaced.