Print Page - Question about Charge pump, probably an easy one

Title: Question about Charge pump, probably an easy one
Post by: chromesphere on April 30, 2012, 05:59:12 AM

Hi all!

I notice on the inverted (-9v) output of the roadrage there is a 1n4001. I was going to use this to power a rangemaster, and also noticed that it has a 1n4001 to ground (as usual), same orientation where the road rage plugs into.

I was just thinking, couldnt you omit one of the 1n4001's? Is the road rage 1n4001 there to ensure that if its connected to a circuit without polarity protection, its covered? So you could just leave it off?

I think i already answered my own question lol

Thanks for any help!!

Charge Pump Project file:
http://www.madbeanpedals.com/projects/RoadRage/docs/RoadRage.pdf (http://www.madbeanpedals.com/projects/RoadRage/docs/RoadRage.pdf)

Rangemaster Project file:
http://www.madbeanpedals.com/projects/Rangemaster/Rangemaster.pdf (http://www.madbeanpedals.com/projects/Rangemaster/Rangemaster.pdf)

Title: Re: Question about Charge pump, probably an easy one
Post by: mgwhit on April 30, 2012, 12:05:06 PM

Yes, you they are polarity protection diodes and you can be safe omitting one of them.

Title: Re: Question about Charge pump, probably an easy one
Post by: chromesphere on April 30, 2012, 12:14:02 PM

Only took 5 years but i think some of this stuffs starting to stick :o

Cheers mgwhit ;)

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Projects => General Questions => Topic started by: chromesphere on April 30, 2012, 05:59:12 AM