RC Rise Time Calculator
This tool calculates the Rise Time of a simple RC low pass filter network. Enter Formula tr = 2.197*RC Rise time in this formula represents the time it takes to …
Analog Electronics
Capacitor Reactance Calculator
This tool calculates the capacitive reactance Xc Enter Formula Xc = 1/(2π*f*C) Example Calculation At a frequency of 10 kHz, with a Capacitance value of 1 μF has a reactance …
24V LED Resistor Calculator
This calculator finds the resistor value to be used with an LED and a +24 Volt supply. It also provides the power dissipation in the resistor – an important number …
5V LED Resistor Calculator (with Examples)
This calculator finds the resistor value to be used with an LED and a +5 Volt supply. It also provides the power dissipation in the resistor – an important number …
Arduino LED Resistor Calculator
The Arduino [1] Input/Output (I/O) pins can be used to control an LED and make it blink. It does this, by turning the output pin on and off. Arduino Resistor …
12V LED Resistor Calculator
This calculator finds the resistor value to be used with an LED and a +12 Volt supply. It also provides the power dissipation in the resistor – an important number …
Why is a Resistor Required for an LED?
A current limiting resistor is used in series with a Light Emitting Diode (LED). In this post we will explain why we need this resistor. LED Current and Voltage Specifications …
Parallel Circuit Voltage Calculator
Use this tool to calculate the equivalent impedance of any number of resistors in parallel, the voltage drop across each and the total current. There are two configurations considered in …
Vpp to Vp Calculator
This tool converts a peak-to-peak voltage to peak voltage for an AC waveform. Referring to the picture of a sine wave above, there are three different voltage levels: Formula Vp …
Total Resistance Calculator
This calculator determines the total effective resistance of any number of resistors in series and parallel configurations. Contents1 Series Resistance Calculator2 Series Resistance Formula3 Example Calculation4 Parallel Resistance Calculator5 Parallel …