tiwari.sachin
Full Member level 6
Attached is the waveforms for P MOS and sch
Yellow is Vs
Blue is Vg
Pink is Vd
Orange is Vsg
I have a Switch (used tactile for reference but is a rocker switch) at the source as shown
The moment I press the switch I see a rise at Vd and it comes back to zero after about 20ms (Why does this happen)
Note: Q8 is off initially
Ideally Mosfet should turn ON only when Q8 is ON.
What could be causing Vd to rise and fall the moment switch is turned ON.
- - - Updated - - -
Also Note:
D45 and C136 not loaded
After the switch I have a 470uF x 2 electrolyte caps
Yellow is Vs
Blue is Vg
Pink is Vd
Orange is Vsg
I have a Switch (used tactile for reference but is a rocker switch) at the source as shown
The moment I press the switch I see a rise at Vd and it comes back to zero after about 20ms (Why does this happen)
Note: Q8 is off initially
Ideally Mosfet should turn ON only when Q8 is ON.
What could be causing Vd to rise and fall the moment switch is turned ON.
- - - Updated - - -
Also Note:
D45 and C136 not loaded
After the switch I have a 470uF x 2 electrolyte caps