Close

AZ_Mosfet

A project log for Patriot Companion

My Digital Electronics class is building a programmable test board with various sensors and controllers. Our school mascot is the Patriot.

azue92azue92 03/30/2017 at 16:032 Comments

Discussions

K.C. Lee wrote 03/30/2017 at 17:18 point

Also LM358 does not have rail to rail output.  So your MOSFET might be on.

VOH: RL ≥ 2 kΩ (25°C)         VCC − 1.5 (min)

Vgs = -0.4V (min), 0.8V (typ), -1.5V(Max)

  Are you sure? yes | no

K.C. Lee wrote 03/30/2017 at 16:59 point

If +5V is after Q1 , what powers your U1 initially that eventually drives the MOSFET?

Never mind... Your schematic resolution is not enough to see body diode direction.  Might also want to crop the pictures and turn off the grids.

  Are you sure? yes | no