App note: Safety considerations and layout recommendations for digital isolators

Application note from Silicon Labs about end user safety against high voltage shock that are designed together with digital isolators. Link here (PDF) This application note details the creepage and clearance requirements of an isolator type component, such as a digital isolator, used to provide protection from electric shock. It also details layout recommendations to […]

WORKSHOP VIDEO #39: Magnificent Nixie tube thing

This week we try out the IN12 Nixie tube blocks we’ve been working on. They’ll be on display in the new workshop studio and at Maker Faire New York. We also light up a mini VFD we scored in Akihabara in Tokyo last year. Sorry about the poor lighting, new workshop will be up and […]

High-voltage arcs using a flyback transformer from a monitor

Hak8or uploaded a gallery of high voltage arc pictures. The setup was salvaged from an old CRT monitor. He suspects the flyback transformer produces around 30 kV. I found some old pictures of me playing around with a flyback, and I wanted to test out this awesome gallery thing I found, so I mushed them […]

Let the sparks fly with flyback transformers

Flyback transformers are used to drive the large odd shaped coils surround the neck of CRTs in TVs and computer monitors. They operate in the 15 to 150 kHz range, and can be used to generate high voltages! Uzzors2k decided to experiment with generating voltages high enough to produce arcs, driving the the transformers with […]

Bus Pirate high voltage supply with only 6 parts

We used the Bus Pirate and 6 common components to multiply 5volts to over 120volts with a boost converter, a type of switched-mode power supply. Similar circuits are commonly used to power 180volt nixie tubes from low voltage power supplies. This circuit is a simple way to build your first SMPS, but be careful because […]

Bus Pirate high voltage power supply

The crew at Robots and Dinosaurs prototyped a high voltage power supply for a geiger counter tube using the Bus Pirate pulse-width modulator. They were able to step up 5volts to 800volts+ with a simple boost converter circuit on a bread board. We always like to see new ways to use the Bus Pirate. Thanks […]