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Voltage Divider

Voltage Divider
  • Price: $1.99 In Apple Store
  • Category: Utilities
  • Updated: 2010-05-20
  • Current Version: 1.0
  • 1.0
  • Size: 0.30 MB
  • Language: English
  • Seller: Carson Whitsett
  • Requirements: Compatible with iPhone, iPod touch, and iPad. Requires iOS 2.0 or later
  • © 2010 Carson Whitsett
  •  Add to Favorite apps



A handy engineering utility that solves for voltages or resistor values in a common voltage divider circuit. Enter three terms (out of Vin, Vout, R1 or R2) and this app will solve for the fourth term automatically. The resistor picker will only let….. Read more

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Customer reviews

Rated 4/5 based on 3 customer reviews.


4/5 stars
more than a solver

I design power supplies so I often have to calculate the feedback voltage divider. Sure, it is easy enough in a calculator but having all the standard 1% and 5% values in this app makes things easy. I normally have to solve for a R value and then look up the closest real 1% value. Then I solve to find my actual output voltage only to find that it isn't close enough so I have to do it again with another R value. With this App I can just have the it solve for the ideal value and then the resistor selction wheel shows me the closes real value resistors. I can easily see what my output voltage would be using those values.

Pros: works well and looks pretty good. It is cool to see the color bands on the resistors change with value
Cons: On my 2G iPhone the resistors had black splotches on them. All is good with my iPhone4 (I think 3G and up don't have this problem).

5/5 stars

This is an excellent app with a nice, clean GUI that will prove to be a favorite when building your next circuit.

5/5 stars
Simply Beautiful

Elegant in form and function, so fun to use it makes me want to start a new electronics project just to play with it.

We need more apps like this, I'd love one for playing with transistors or analog ic's.

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