Tag Archives: calculator

New online calculator: Snubber capacitor calculator

Calculate the needed snubber capacitance in order to protect your inverters IGBT/MOSFETs from too high swithcing transients, depending on your busbar layout and stray inductance. Try the new online calculator at: http://kaizerpowerelectronics.dk/calculators/snubber-capacitor-calculator/

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New online calculator for IGBT gate drive

I added a new online calculator that will help you do the calculations for IGBT gate drive. It is useful for continues wave operation and has a optional input and output for use with Tesla coils like DRSSTCs. Check it … Continue reading

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IGBT gate drive calculator

To insure that we switch our IGBT fast enough to lessen losses, slow enough to avoid ringing and the drive circuitry is stable we have to calculate the power, current and peak currents in our drive circuit. Detailed explanation further … Continue reading

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Spiral coil calculator

Here you can calculate the inductance for a given size of a spiral coil wound in one layer. It is optional to add the capacitance for f.ex. a primary tank capacitor or topload capacitance to find the resonant frequency of … Continue reading

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Helical coil calculator

Here you can calculate the inductance for a given size of helical coil wound in one layer. It is optional to add the capacitance for f.ex. a primary tank capacitor or topload capacitance to find the resonant frequency of the … Continue reading

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TI-83 calculator repair

Introduction I bought my Texas Instruments TI-83 calculator back in 1999 for when I took my HTX degree (Higher Technical Exam). Since 2012 it began showing various symptoms of ageing that just got worse as time went on. It could … Continue reading

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Transistor base resistor calculator

Here is a calculator for transistor base resistor values. Its IMPORTANT that you read the following. Calculate the current you need to pass through the transistor when its on, that is your collector current. The current gain, beta, Hfe, is … Continue reading

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