5 ms·
> Motor controllers tried to make motors happy by providing a sine wave, or something close to one. Gradually it was realized that motors could be purpose desig
by segfaultbuserr 5y ago
> Motor controllers tried to make motors happy by providing a sine wave, or something close to one. Gradually it was realized that motors could be purpose designed for chopped waveforms.
Marginally related: it was quite a shock to me when I first learned a rocket engine's thrust can be PWM-controlled.
- Animats 5y agoit was quite a shock to me when I first learned a rocket engine's thrust can be PWM-controlled. The thrust of the pistons of a steam locomotive is PWM-controlled. That's what all the elaborate levers and cranks on the side of the locomotive do. They control the "cutoff" point in the cycle, where steam is turned off. Look up "valve gear" if interested.