Recent content by Corey Spruit

I am trying to work out a value of capacitance required to 'ride out' interruptions in the incoming supply before it is fed into a DC-DC Regulator. So the Reg has a min/max input voltage range, looking at how to maintain this in case of a dropout in the supply. That's a handy equation too when...

meBigGuy: Yeah, it's clear now. Sorry my response was a bit vague too, I was referring to "(a-b)^2 is a^2 - 2ab +b^2." Having looked at it again just now, I instantly noticed the -ve should be a +ve; I guess I hadn't reviewed what I entered that closely. When I went off and did the calcs for...

Yes, totally understand that. I'm intending on this cap to feed a DC-DC switching regulator which will compensate the current drawn due to the drooping voltage, but I might verify with an experiment. Thanks.

Thanks guys. Ah, this is the trouble with being an engineer, sometimes you use high-school maths and you end up looking like a 6th grader.. This is not relevant, I went off and tried this, and ended up solving a quadratic equation (for fun, digging up old high-school maths again). But x^2-y^2...

Hi All, (First post, be nice). I'm analysing the discharge of a capacitor. Starting from the energy in a capacitor: E = \frac{1}{2} CV^2 This can be represented as follows (seen this elsewhere, there is nothing wrong with this): \Delta E = P \Delta t = \frac{1}{2} C(V^2_s-V^2_f) Where \Delta...