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Topic: 32 MOSFET board for high currents (Read 333 times) previous topic - next topic

CrossRoads

Jul 07, 2014, 04:41 am Last Edit: Jul 07, 2014, 05:00 am by CrossRoads Reason: 1
Finally got some loads wired up and had my college age son write some code - so here's 1/ 4 of the board doing its thing!
Four 74HC595's daisy chained to drive 32 AOI518, very low Rds, logic level N-channel MOSFETs. Parts selected & power traces designed for an amp per channel.
http://www.crossroadsfencing.com/BobuinoRev17/
Short clip of it working with OE set to 1/255: http://www.crossroadsfencing.com/BobuinoRev17/MVI_2864.AVI
And my son's fade up & down code while moving around the channels
http://youtu.be/hAVf1D1L-7c
Kits available for $38, plus shipping (US: $5.35) and 4% paypal fee.
Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
Arduino for Teens available at Amazon.com.

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