3 ms·

Can’t we low pass filter PWM ambient lights, to make them time-continuous?

• DrNosferatu 1y ago
  I guess not at the circuit level because the higher peak signals are necessary to drive the light emission? Anyone care to weigh in on this?
  • davrosthedalek 1y ago
    You totally can, but the target quantity is average current, not average voltage. Since the LED is a diode, that's not the same.
    • DrNosferatu 1y ago
      "higher peak current signals", that is. Thanks for the clarification.
  • DrNosferatu 1y ago
    In the meantime, it occurred to me PWM stimulate a light-emiting phosphor for continuous-time ambient light applications - CRT style.