12V to 5V Voltage Divider
In many circuit applications there is a requirement to convert 12 Volt to 5 Volt. For example, a circuit may not be able to tolerate input voltages greater than 5V. …
Analog Electronics
Do Resistors in Parallel have the Same Current?
Parallel resistors do not have the same current flowing through them. The current through each resistor depends on Example Current Calculation For a three resistor network (R1 = 10 Ω, …
Parallel Resistor Calculator in Reverse
Here we calculate the value of a resistor used in parallel with another known resistor to achieve a desired total effective resistance. Enter The tool will calculate the value of …
Capacitor Discharge Time Calculator
This tool calculates the time it takes to discharge a capacitor to a specified voltage level. The schematic consists of an RC network as shown in the title picture. As …
Capacitor Charge Time Calculator
Calculate the time it takes to charge a capacitor to the level of the input voltage. Formula Vc = Vi (1-e-t/τ) where, time constant τ = RC, where R is …
Capacitor Dissipation Factor Calculator
This tool calculates the Dissipation Factor of a Capacitor. Enter: Formula D = ESR/|Xc| D = (2π*f*C*ESR) where, Background Dissipation Factor (DF) is a measure of a capacitor’s dielectric losses. …
Bypass or Decoupling Capacitor Calculator
A Bypass Capacitor is used to bypass high frequency signals and noise from power supplies. This prevents issues with Electromagnetic Interference (EMI). The picture below shows an example of bypass …
Crest Factor Calculator
The crest factor of a waveform is given by the ratio of the peak to RMS amplitude level Enter Formula CF = Vpeak/VRMS Example Calculation If the peak value is …
Capacitor Heat Dissipation Calculator
This tool calculates the heat dissipated in a capacitor. Every capacitor has a finite amount of series resistance associated with it. This results in heat dissipation. The resulting temperature rise …
Capacitor Power Dissipation Calculator
An ideal capacitor does not dissipate any power. However there is no such thing as an ideal cap. In reality, there’s an associated series resistance called the Equivalent Series Resistance …