Where To Get “Free” TO-247 IGBTs and MOSFETs

A look at a box of IGBTs and MOSFETs that I have salvaged from household electronics like microwave ovens, induction stoves, solar inverters, welding machines, car and battery charges and other common high power electronics with switching inverters. The TO-247 …

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Belkin Regulator PRO Silver 650VA UPS Teardown

This is a short teardown of the smallest UPS I have yet found thrown out. The Belkin Regulator PRO Silver UPS 650VA (model F6C650-SER-SB) uses the battery type CSB HC1221W which has been discontinued. If not obvious, my daughter helped …

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Victron Energie Atlas Combi 12V/800W Battery Charger/Inverter Teardown

I do a teardown and test of a Victron Energie Atlas Combi 12-800. It is a combined battery charger and 230VAC inverter. The battery charger of the Atlas Combi is suitable for a 230 VAC, (50 Hz) mains voltage. The …

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Chinese 1800 Watt Induction Heater – Horizontal Oven Heat Insulation Test

Test with using regular mineral wool for house insulation, to insulate the work coil in order to achieve higher steel temperatures. Here is another try, unlike the induction heater vertical oven, just with the induction heater horizontal oven. To contain …

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Chinese 1800 Watt Induction Heater – Heat Insulation Test

Test with using regular mineral wool for house insulation, to insulated the work coil in order to achieve higher steel temperatures.

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2200 Watt server power supply for induction heating

I have constructed a 2200 Watt server power supply made from three individual server power supplies, put in series. This video shows your how to make them run and avoid short-circuit between grounded negative rails. You can check out all …

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Unboxing a Chinese 1800 Watt Induction Heater

I finally got around to get the IH out of the box and repair it, here is part 1 of a series of videos on this IH. Watch part 2 and the following parts here. This is a 1800 Watt …

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TL494 Flyback Driver

It took some years and someone recently bumping up my old thread about this project for me to write up a article. I had to dig around a bit to find the pictures, make a video and get it on …

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