Your browser is out-of-date!

Update your browser to view this website correctly. Update my browser now


Electronics Lab has moved to Tinkercad. Copy your projects to Tinkercad to continue editing your designs. Learn More Got it!

micro h-bridge v2 | PCB Design

micro h-bridge v2
Version 1 - Last update: Oct 3, 2015

I saw this instructable: DigitalAnalog-Clock-Arduino-PaperCraft , and I thought that using 28 servos for the effect was a bit expensive and overkill, when tiny home-made solenoids could do the task for a fraction of the cost and space. However, I'm not willing to risk killing my Arduino with back-EMF, even if my tiny solenoids might not produce enough to worry about.

I thought that a tiny h-bridge, meant for low-voltage and low-amperage use for very light-weight applications, might be good to have.

micro h-bridge v2 has the same schematic as micro h-bridge v1, but changed diode footprint and pattern for about 25% smaller board. Doesn't look like an h-bridge visually anymore, but it is about as squished into a small space as I can get it without putting components on the bottom layer (which isn't supported yet that I can see).

I'll have to go digging around for different components, find even smaller diodes and resistors, maybe use the smaller 2mm headers instead of the .1 inch ones, if I want a smaller board. If I can get those, and use backside components, and probably a 4 layer board, I just might be able to halve the board space.

Yes, I might be crazy. :-)

Comments disabled