3PDT Charge Pump Breakout Board Flying Blind!!!

[bassrep]

How is it that there appears to be a total lack of documentation on the 3PDT Charge Pump Breakout Board? Anyone have a pdf or something scribbled on a White Castle napkin? Thanks all.

 

[Robert]

For selectable voltage you install a mini SPDT slide switch into the pads on the far right.

Mini Slide Switch 1P2T Through Hole 0.2A 24VDC

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www.taydaelectronics.com

The three "FIXED" pads at the bottom deliver constant voltages as marked regardless of the voltage switch setting.

 

[darwin999]

Anyone have ... something scribbled on a White Castle napkin?

Love it!

 

[aechcutt]

For selectable voltage you install a mini SPDT slide switch into the pads on the far right.

Mini Slide Switch 1P2T Through Hole 0.2A 24VDC

EXCEL CELL ELECTRONIC - Get It Fast - Same Day Shipping

www.taydaelectronics.com

The three "FIXED" pads at the bottom deliver constant voltages as marked regardless of the voltage switch setting.


View attachment 64193

This is an amazing help, thank you!

Regarding the fixed pads. If you were to use them, would you instead wire the + lead that goes to the PCB to one of the three options and then leave the - lead in the same place in the picture above?

 

[bassrep]

Here is my diagram for the LED. I'm not sure if this is what the designer had in mind, but it's the only way my brain could get it to work! Thanks to all for your help and consideration.

 

[Kroars]

Here is my diagram for the LED. I'm not sure if this is what the designer had in mind, but it's the only way my brain could get it to work! Thanks to all for your help and consideration.

Great diagram. Although, you may want to throw a CLR in there You could also just use the fixed +9v.

 

[ftumch]

I'm guessing some of the parts can be omitted if only inverting or only doubling?

Edit: this question was answered here

 

[ftumch]

This might be for another thread but would a trimmer in place of the mini switch give a continual sweep between 9v and 18v?

 

[ftumch]

Last question, if I feed this 12v to get -12v will the IC explode?

 

[Sturdag Lagernathy]

Max voltage for the TC1044 is 12Vdc, so you're good. It is max input voltage, though, so it's kinda running on the edge. It'll put out +12v,-12v and something around >+22v I believe? If someone knows better, chime in!

 

[Robert]

Last question, if I feed this 12v to get -12v will the IC explode?

You could use LTC1144 instead of TC1044, it can handle up to 18V.

In either case, just make sure the voltage rating of your electrolytic caps is high enough.