View Single Post
  #11   Report Post  
Posted to sci.electronics.repair
Franc Zabkar Franc Zabkar is offline
external usenet poster
 
Posts: 1,569
Default DTV decoder repair, capacitor gets too hot

On Mon, 31 May 2010 10:12:44 +1000, Grant put finger
to keyboard and composed:

Quick check for 1000/25 and 1000/35 Panasonic caps
show ESR goes from .033 down to .025 for higher volt rating.


I just tried a thought experiment, but it failed. :-(

Let's say we have four identical capacitors, each with capacitance C,
esr R, and voltage rating V.

If we connect them as follows, we would expect the equivalent
capacitor to have a capacitance C, esr R, and voltage rating 2V.

|| ||
|---||--||---|
| || || |
o---| |---o
| || || |
|---||--||---|
|| ||

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.