Re: 2x250 IRS2092 amp build

Lets continue the capacitor discussion with a modified scenario,lets say we have a large amount of 20,000 uf capacitors rated at 50 volts,The original specification called for a 20,000 uf capacitor at a 100 volt rating.

We have the required capacitance value but only half of the required voltage rating,we will need to wire 2 of our capacitors in series to double the voltage handling.We need to take the negative lead of 1 cap and solder to the positive lead of a second cap....nothing will be connected to this junction.This leaves us with two leads a plus and minus. Cover both series connected caps with an imaginary piece of shrink tubing :D. Now take a white marker and write our new value of 10,000 uf 100 volts.

Notice that our 20,000 uf rating is now cut in half,but we now have a 100 volt rating...We will need to make another series connected pair just like the first one...We now take the 2 pairs and connect them in parallel to obtain the final value of 20,000 uf at 100 volts. There are other potential issues with series connected caps but I won't cover them here.Connecting caps in series to obtain a higher working voltage is something you would do in a pinch ;).

I thought an "Over explanation" might help those who still a bit unsure...

Regards

Bob C.

Lets continue the capacitor discussion with a modified scenario,lets say we have a large amount of 20,000 uf capacitors rated at 50 volts,The original specification called for a 20,000 uf capacitor at a 100 volt rating.

We have the required capacitance value but only half of the required voltage rating,we will need to wire 2 of our capacitors in series to double the voltage handling.We need to take the negative lead of 1 cap and solder to the positive lead of a second cap....nothing will be connected to this junction.This leaves us with two leads a plus and minus. Cover both series connected caps with an imaginary piece of shrink tubing :D. Now take a white marker and write our new value of 10,000 uf 100 volts.

Notice that our 20,000 uf rating is now cut in half,but we now have a 100 volt rating...We will need to make another series connected pair just like the first one...We now take the 2 pairs and connect them in parallel to obtain the final value of 20,000 uf at 100 volts. There are other potential issues with series connected caps but I won't cover them here.Connecting caps in series to obtain a higher working voltage is something you would do in a pinch ;).

I thought an "Over explanation" might help those who still a bit unsure...

Regards

Bob C.

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