Web Based Circuit Simulation
I’ve been working on a project lately which involves building a large switch mode power supply in the range of 220 volts at 35 amps. Because components are expensive at those power levels I decided to go searching for a simulator that was easy to get started with, offered the basic components I needed and […]
Continue Reading Web Based Circuit Simulation
Some Big IGBTs
Posted on May 18th, 2014 in Copper Vapor Laser, Custom Projects, DIY Equipment, Electronics, Energy, Laser, Technology
Last week I was out shopping at one of my electronic resources and came across some big Mitsubishi CM200DY-12H 600 Volts 200 Amp IGBTs. I bought two pairs of them for my future projects. Below is a picture of a pair of them on the nicely machined heatsink. The overall length of the heatsink is about […]
Continue Reading Some Big IGBTs
Rebuild of a Powerstat 136-2 Dual Gang Autotransformer
Posted on May 18th, 2014 in Electronics, Electronics Repair, Energy, High Voltage, Technology, Video
I came across a Powerstat 136b dual gang autotransformer / variac the other day at the surplus shop. These are rated at 120V @ 22 Amps per section. It was in pretty sad shape and needed a lot of rework, but autotransformers are pretty handy pieces of equipment and it’s a real shame to leave […]
Continue Reading Rebuild of a Powerstat 136-2 Dual Gang Autotransformer
High Density WS2812B Panel Project
Posted on March 16th, 2014 in Arduino, Custom Projects, DIY Equipment, Electronics, LEDs, Lighting, Teensy, Video
The WS2812B RGB LED chip is a wonderful little device. It contains Red, Green and Blue LED elements and also a WS2811 RGB LED driver. The chip has only 4 pins. Power, Ground, Data In and Data Out and can easily be chained to another chip. With enough of these chips chained together your can […]
Continue Reading High Density WS2812B Panel Project
Toaster Oven Reflow Controller Project
I had a project I was working on which needed to be reflow soldered because there were too many parts too close to each other to solder by hand. I needed to get a reflow controller up and running quickly. I made the little controller shown below by mixing a few easily available kits and […]
Continue Reading Toaster Oven Reflow Controller Project
