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Voltage Divider

Voltage Divider
  • #: 235566
  • Price: $1.99 In Apple Store
  • Category: Utilities
  • Updated: 2012-11-05
  • Current Version: 1.0.1
  • 1.0.1
  • 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

 

Description

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 you pick from actual resistor values that exist. It's a great time saving tool for quickly selecting resistor values in a switching power supply design or any other circuit that incorporates a voltage divider.

When solving for a voltage, select two resistor values and one of the voltages. The remaining voltage will be displayed automatically. The max and min possible voltages will also be displayed based on the resistor tolerances. The current and power through the divider will be displayed at the bottom of the screen.

When solving for a resistor value, select two voltages and one resistor value. The remaining resistor value will be displayed in yellow. This is an ideal value. Use the resistor picker to select an actual resistor value close to that ideal value. You can then tell the app to solve for Vin or Vout to see if the resulting voltage meets your design requirements.

Want to see something cool? Select any two resistor values then enter this special voltage in Vin: 4696 :-)

What's New in Version 1.0.1

Bug fixes
iOS 6 support

iPhone Screenshots

Voltage Divider iPhone Screenshot 1
Voltage Divider iPhone Screenshot 2
Voltage Divider iPhone Screenshot 3
Voltage Divider iPhone Screenshot 4

Video Reviews

No video review.

Customer reviews

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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

Excellent

:
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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The information may be outdated (2017-03-08 20:53:17). For actual information go to iTunes

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