Capacitor Discharge Resistor Calculator
This tool calculates the value of Resistance (Ω) required to discharge a capacitor in a specified amount of time. It also calculates the power requirements for the resistor (important for …
Analog Electronics
Capacitor Tolerance Calculator
This tool calculates the minimum and maximum Capacitance values from its percentage tolerance. This % number can be found from the Cap data sheet. Calculator Enter The tool will provide …
Resistor Tolerance Calculator (with Examples)
This tool calculates the minimum and maximum resistance values from its percentage tolerance. This % number can be found from the resistor data sheet. Calculator Enter The tool will provide …
ESP8266 Voltage Divider for ADC
Introduction When a voltage is input to the Analog-to-Digital Converter of the ESP8266 or ESP32, care must be taken that the max voltage spec of the ADC is not exceeded. …
ADC Voltage Divider Calculator
Introduction When a voltage is input to an Analog-to-Digital Converter, care must be taken that the max voltage spec of the ADC is not exceeded. This page provides a voltage …
5V to 4V Voltage Divider Calculator
Introduction In many circuit applications there is a requirement to drop 5 Volt down to 4 Volt. For example, a circuit may not be able to tolerate input voltages greater …
Capacitor Discharge Current Calculator
This tool calculates the discharge current, peak current and charge of a capacitor. Calculator Enter Formula Vo is the initial voltage. The capacitor voltage Vc at time t is given …
What’s the Difference Between RMS and Average Current?
RMS (Root Mean Square) current and Average current are two different ways of representing the current in an alternating current (AC) circuit. They they convey different information about the current …
RMS Current (Amp) Calculator
Root Mean Square (RMS) current, often denoted as IRMS, is equal to the value of direct current (DC) that produces the same power dissipation in a resistive load. Calculator To find …
Voltage Divider Calculator with 5 Resistors
This tool calculates the voltage across each of five (5) resistors in series. Enter the Input Voltage Vin, and resistor values R1, R2, R3, R4 and R5. Use the drop …