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Calculator

EV Wireless Battery Charger Calculator Tool

Last Updated on May 17, 2026 by Swagatam Leave a Comment

This calculator helps estimate resonant frequency or compensation capacitor for a wireless EV charging primary coil. It is for first-step design and learning, not final tuning… Calculator by homemade-circuits.com EV Wireless LC Resonance Calculator EV Wireless LC Resonance Calculator Calculate: Resonant Frequency (Hz)Capacitance (µF)Inductance (µH) First Value: Primary Inductance µHCapacitance µFFrequency Hz Second Value: Primary […]

Filed Under: Automobile Electronics, Battery Charger Circuits Tagged With: Battery, Calculator, Charger, EV, Tool, Wireless

How to Make a Simple Math Calculator using Arduino

Last Updated on May 14, 2026 by Swagatam 2 Comments

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In this post, I will show how to construct a calculator using Arduino, which can perform far complex arithmetical calculation than an ordinary calculator. Program: //——————-Program Developed by R.Girish—————// #include<math.h> float a = 500; float b = 105.33; float add; float sub; float divide; float mul; void setup() { Serial.begin(9600); Serial.println(“Simple Arduino Calculator:”); Serial.println(“n”); Serial.print(“a […]

Filed Under: Arduino Projects Tagged With: Arduino, Calculator, Math, Simple

Passive Power Factor Correction (PFC) Calculator

Last Updated on April 15, 2026 by Swagatam Leave a Comment

This passive PFC calculator does not use any MOSFET or PWM or switching frequency. It only uses 50 Hz mains and it only works with inductors and capacitors, so the only thing that matters is the reactance of the inductor and the reactance of the capacitor at the mains frequency. That is why the calculator […]

Filed Under: Voltage Control and Protection Tagged With: Calculator, Correction, Factor, PFC, Power

RC Snubber Calculator for MOSFETs, Relay Contacts and Triacs

Last Updated on September 15, 2025 by Swagatam 8 Comments

This calculator is basically finding out two things: …so that we can make a perfect RC snubber for killing high voltage spikes across: Now let us break down everything it’s calculating. RC Snubber Calculator Application Type: MOSFETTRIACRelay Contact Peak Voltage (V): Peak Current (A): Rise Time (µs): Calculate Snubber © homemade-Circuits.com Basic Snubber Formula Logic […]

Filed Under: Voltage Control and Protection Tagged With: Calculator, Contacts, MOSFETs, RC, Relay, Snubber

SMPS Flyback Boost Converter Calculator

Last Updated on September 15, 2025 by Swagatam 4 Comments

This calculator tool supports a Boost Converter Flyback setup which means now the code considers: Corrected turns ratio and primary voltage logic since the flyback works by storing energy during “ON” time and transferring to secondary during “OFF” time. Flyback boost topology where output voltage is higher than input. An accurate duty cycle formula for […]

Filed Under: SMPS and Converters Tagged With: Boost, Calculator, Converter, Flyback, SMPS

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