Re: capacitor ripple vs endurance & other questions




Well, somebody angered one of the caps gods, and he visited a bad electrolyte plague upon us all....

Re: capacitor ripple vs endurance & other questions

"It's not 'my' equation."


Not unless your real name is Pythagoras and you're really, really old.


But then I never called it your equation, I called it the equation which you used, meaning the equation which you used in your explanation of the circumstance under which ESR is effectively equal to impedence.

Re: capacitor ripple vs endurance & other questions



If you're talking about the one in the upper right hand corner, I've already got one domed just like that, although without the sporty splash of brown.


Discount-Merchant has a picture of one where the caps are actually going to wait until you've gone to the trouble of installing the board and applying power before going bad, but they're currently out of stock....

Re: capacitor ripple vs endurance & other questions



It's been enough years since electronics classes that I don't recall the others that involve both inductive *and* capacitive reactance, and the books aren't ready to hand, but I was only talking about the equation you actually used, which is basically the one for impedence--resistance along the X axis, starting at 0 and moving to the right, XL - XC along the Y Axis, and impedence is the hypotenuse of the resulting triangle, in other words, the Pythagorean Theorem--called for the squaring of XL-XC.
...

Re: capacitor ripple vs endurance & other questions




If XL-XC <0, then squaring that value will automatically result in a postive number, 'cause a negative number times a negative number is a negative negative (i.e., positive) number.

Now if the formula/equation called for raising it to an odd numbered power, then you would need to be sure to take the absolute value.


regards,
unitron

(who's currently screwing around with a DAC-19M015 out of a Westinghouse SK-19H210S)...