HELP PLEASE!!! In need of help in picking which pots for my 12 unites that i am making.

[WillyB]

A 200 ohm pot on the PTN04050c would give you a voltage of 14.6 to 15 volts. 5 Volts on that chip starts with a open circuit ( without using the "Trick " ) I think you figured it for a 200Kohm pot

Ouch!

Well what values using the 'trick'?

 

[CapeCAD]

Looking back at the first post 9 "PTN04050C" on there way to m house and 3 "PTR08100W" I believe the 200 ohm was not used on the boost converter, it was used on the buck converter

 

[WillyB]

I understand, but he has more of the boosters to work on. Although my volts were off my point was for the OP to understand that all the pot talk and values did not apply to them.

 

[Java_Az]

Ouch!

Well what values using the 'trick'?

Resistors 47k, 75k, 150k, open) are the resistors with one open. gives you 5.6 (47k) 5.4 ( 75k) 5.2 ( 150K) 5 volts ( open) the trick just adds a resistor between v out and the adjust pins. I havent done it myself just pulled the info off the fist pack link. Looks like you use the same resistors you just add the one to drop the voltage.

CapeCAD
Looking back at the first post 9 "PTN04050C" on there way to m house and 3 "PTR08100W" I believe the 200 ohm was not used on the boost converter, it was used on the buck converter

Kinda confusing thread since we are talking about two different modules in it.

 

[Xariel Luis Hernandez]

Resistors 47k, 75k, 150k, open) are the resistors with one open. gives you 5.6 (47k) 5.4 ( 75k) 5.2 ( 150K) 5 volts ( open) the trick just adds a resistor between v out and the adjust pins. I havent done it myself just pulled the info off the fist pack link. Looks like you use the same resistors you just add the one to drop the voltage.



Kinda confusing thread since we are talking about two different modules in it.

THE POT TALK WAS FOR THE PTR08100W BUT THE 4050 WAS FOR AN OTHER 5V PROJECT FOR MY FRIENDS THAT WANTED TO TRY IT OUT. oops but also i like to know if there is a differences in battery life with out the 100uF 16v caps or its all the same with them.i know that the input is needed stop the shock of the on and off of voltage but is there a difference in run times