Re: Simple 555 PWM - disappointing performance

Terry Pinnell wrote:

[...]

> What is the main reason for its poor performance please? I didn't get
> around to trying it, but would a cap (100nf?) across the motor help?
> What other changes would get me closer to the idealised result? (BTW,
> I do get that when I swap the motor for a purely resistive load.)
> Terry Pinnell
> Hobbyist, West Sussex, UK

Needs lots more base drive to saturate the 3055.

Mike Monett
.

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