CALCULATORS & CONVERTERS

usb e kits presents
online calculator,converters and generators

This calculator allows you to do an approximate conversion between millicandelas (or candelas) and lumens!

This program calculates the missing parameter value.
Parametrs Input Voltage, R1 and R2, Output Voltage.

Inches,mm,feet and other converter

You can use this Voltage Regulator to calculate the output voltage for the LM317 / LM338 / LM350 family

The LED series/parallel array wizard is a calculator that will help you design large arrays of LEDs.

an online zener diode calculator.
just enter the values needed and find the resistor and the zener.

HELICAL COIL CALCULATOR

The calculators give suggestions for appropriate choking coils and high frequency transformers.

A simple online calculator for the hysterisis in an opamp as a comparator.

Fill in the form and push "Calculate" to get an updated schematic