DELTA V2I1, a stripped down prototype FE PCB for LHCb UT

A flex thin 5 layer board with lots of caps and wire-bonding pads: LHCb UT’s front end PCB prototype.

40 GPIO I2C expander with the PCA9698

There are lots of MCUs with many GPIOs, but apparently, they’re never enough. Wanna 40 more?

NE555 and Digital potentiometer based pulse delay generator: trigger it and get a pulse back after some delay!

Triac control circuit with built-in zero crossing detection and open collector output

AC-DC SMPS converter with <0.3W standby consumption and 4200 Vrms Pri-Sec. isolation in a 42 x 42 x 22 mm package!