The .000001% of use cases for a simple passive VGA to HDMI is for when the video source is designed especially to output both VGA and HDMI. In these cases the cable will accompany the video source when you buy it. This is so rare, I almost regret writing this much about it. Analog vs Digital.
Definition - What does Pulse Width Modulation (PWM) mean? Pulse-width modulation (PWM) is a modulation process or technique used in most communication systems for encoding the amplitude of a signal right into a pulse width or duration of another signal, usually a carrier signal, for transmission.
Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a modulation technique used to encode a message into a pulsing signal.PWM (Sineâtriangle pulse width modulation) signals are used in micro-inverter design (used in solar or wind power applications). These switching signals are fed to the FETs that are used in the device. The device's efficiency depends on the harmonic content of the PWM signal.