Re: PWM controller, 0-100%, external VREF?
- From: "Tim Williams" <tmoranwms@xxxxxxxxx>
- Date: Sun, 3 Feb 2008 12:00:50 -0600
Ah, okay then. LM319. :^)
Might take up a bit of space / current though..
Tim
--
Deep Fryer: A very philosophical monk.
Website @ http://webpages.charter.net/dawill/tmoranwms
"Rob" <rob@xxxxxxx> wrote in message
news:47a5ab11$0$30704$4c368faf@xxxxxxxxxxxxxxxxx
Tim,current
I should have probably specified, looking for PWM frequency of 400 kHz+
Rob.
In article <Cndpj.2857$Zj4.251@xxxxxxxxxxxx>, tmoranwms@xxxxxxxxx
says...
Um, LM393?
OK, so it takes four more resistors than a PWM-in-a-box, so what.
Tim
--
Deep Fryer: A very philosophical monk.
Website @ http://webpages.charter.net/dawill/tmoranwms
"Rob" <rob@xxxxxxx> wrote in message
news:47a518e3$0$22583$4c368faf@xxxxxxxxxxxxxxxxx
Hi,
I'm trying to find what I thought would be very simple:
A PWM controller that can do 0-100% Duty Cycle and has an error amp
WITHOUT VREF connected (i.e. I can supply VREF). I've checked every
major supplier up and down with no luck.
I can get around current-mode control by summing OSC ramp with
Anycomparator.
Something like SG1524 that does 0-100% duty cycle would be perfect.
suggestions?
Rob.
.
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- PWM controller, 0-100%, external VREF?
- From: Rob
- Re: PWM controller, 0-100%, external VREF?
- From: Tim Williams
- Re: PWM controller, 0-100%, external VREF?
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