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Results tagged with pwm
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user 245632
Pulse-width modulation, is varying the duty cycle of a rectangle wave, usually with a constant frequency.
0
votes
1N4148 Diode for 3V-5V PWM
If you don't mind adding another IC, you could use a CMOS OR gate. Run from 5V, it will switch on 3.3V logic levels. There are varieties with different power levels, output current (fanout), and some …
- 71
0
votes
PWM control of air core motor
I think using PWM to drive inductors is what is causing your problem.
When the PWM on the X axis is close to 100%, there is more time for current to build up and reach the maximum. … PWM percentages only work correctly in resistive circuits that reach maximum current essentially instantly, with respect to PWM frequency. …
- 71
1
vote
Reducing LED PWM Noise: Which is the best option?
Edit: a comment makes a good point about the capacitor current spike on the first PWM pulse, so I will add this to my answer:
I must admit I was thinking of "steady state" with the PWM already running, …
- 71