Re: Voltage controlled 10V->100V DC-DC converter





Genome wrote:
"Fred Bloggs" <nospam@xxxxxxxxxx> wrote in message
news:42970E9D.4090603@xxxxxxxxxxxxx


Fred Bloggs wrote:

... 2) the steady state Vout/Vin= 1/(1-Duty)
where Duty is transistor switch duty cycle- so you would want that to be
about 0.1 or so when Vin=12V. A 50% duty cycle gives you a maximum of
24V for Vout.


Voops->(1-Duty) is about 0.1 which makes Duty=0.9 for a x10 boost...



Not if it's operating discontinuously.

Oh yeah- he said:"Output current is going to be in the low mA range, though I don't have an exact number (the load is almost entirely capacitive, with a very high R in parallel)"- so discontinuous it is.



How is Barry these days?

I suppose he's out there ripping off some gullible idiot with flash and dazzle techno babble that will amount to nothing eventually...



DNA



.



Relevant Pages

  • Re: Answer: Transformer, Girl Running for bus
    ... I read in sci.electronics.design that Genome ... orgasms out of the wife. ... do your duty. ...
    (sci.electronics.design)
  • Re: Voltage controlled 10V->100V DC-DC converter
    ... Fred Bloggs wrote: ... where Duty is transistor switch duty cycle- so you would want that to be about 0.1 or so when Vin=12V. ... A 50% duty cycle gives you a maximum of 24V for Vout. ...
    (sci.electronics.design)
  • Re: 110v transformers
    ... intermittant duty 5 min on/15 min off ... You forgot to notice the duty cycle; 5 mins on and 15 off is very crap. ...
    (uk.rec.motorcycles)
  • Using PCI CTR 05 board with xPC target
    ... I need to generate PWM signals by ... giving the duty cycle as the input. ... I get a PWM output only if I use duty ...
    (comp.soft-sys.matlab)