TI: parasitic effects and PCB design

Wedecon Electronic Design located this post on the Texas Instruments blog highlighting the problems presented in PCB design by parasitic effects caused by rapid high current transients and high frequencies. You can view the post Everything is Part of the Circuit on the TI blog. Via the contact form.

PCB a Week 9: MrRef voltage and current reference

Mats continues his challenge of designing one PCB every week. This tool helps check the accuracy of your multimeter: The design might be interesting anyways since it has remote sensing for compensating for voltage drop in the cables. But if your meter is drawing enough current to cause more than a 1 mV drop you […]

PCB a Week 8: NU-FitHole hole size helper

Mats continues his challenge of designing one PCB every week.  This tool helps to determine exact hole dimensions for screws and other parts. This weeks PAW will be extremely simple – it’s not even a breakout board, but it might still come in handy for people making PCBs. The FitHole is a tool for testing […]

PCB a Week 7: Mains log sensor

Mats continues his challenge of designing one PCB every week. In week 7 he designed a voltage and frequency logger for household mains power supply. The device is designed around the ATtiny45 microcontroller which records the frequency and voltage, and passes measurements through an onto-coupler to an isolated logging board. This week I’ll just finalize […]

PCB a Week 6: GolGrid Conway’s game of life emulator 4×4 LED modules

Mats continues his challenge of designing one PCB every week. In week 6 he came up with GolGrid, a Conwat’s game of life emulator 4×4 LED modules. The modules are designed to accept commands over the UART protocol, and set or clear the corresponding LEDs. This weeks PAW will be a similar board, but SMD […]

Double sided vinyl sticker PCB toner transfer

Mincior made a tutorial on DIY double sided PCBs using vinyl stickers as your toner transfer substrate. We wrote about his vinyl sticker method in an earlier post, but this one covers synchronization between the two layers as well. This is a different way of making a double sided PCB, having one feature in common […]

Seeed sends $10 Fusion PCB service coupons with every PCB order

Seeed Studios is currently (17.1.2013-20.1.2013) running a promotion where you get a $10 Fusion PCB service coupon with every PCB order. This is a push to promote the recent changes made to the ordering process. The service is now made through an automated online ordering process. You just upload your files, chose the specs and […]

PCB a Week 5: Oledy generic OLED breakout board

Mats continues his challenge of designing one PCB every week. In week 5 he came up with Oledy, a breakout board featuring 8 most common pitches for OLED display connectors, spanning from 0.5mm to 1mm. The Oledy board is a 5×5 cm board meant to be cut in half ending up with two boards 2.5 […]

PCB assembly tips: the making of the AASaver

Last March Ray presented his design of a portable breadboard power supply with a selectable voltage using the Microchip MCP1640 boost converter he dubbed the AASaver. After receiving and assembling batches of AASaver PCBs he wrote this tutorial explaining the techniques he uses to manually assemble the boards into a finished, functional product. This is […]

What happens when a V-groove hits your copper pour

Panelizing multiple PCBs onto a single panel is a cost effective way of prototyping. V-groves are usually used to separate the different PCBs, making it easy to snap them off. The picture above depicts what happens when the V-grove hits a copper pour such as a ground plane. Anyway, back to the topic. You usually […]