Confused

124

01:17:27

How does a P MOSFET gets activated at zero volts  ??
It requires negative Gate voltage to induce channel 

published 9 years ago

deadall127

9 years ago

Because there is a negative gate voltage, voltage is a potential difference, not a simple value http://everycircuit.com/circuit/5695158586179584 it works also with N mosfets. hope I helped you ;)

deadall127

9 years ago

Also the little colored triangle tells you where this voltage is

selman

9 years ago

You are correct P-MOSFETS conduct when there is a negative voltage, what you missed is that the negative voltage is not between the gate and the ground (Vg) but it is between the gate and the source (Vgs). As I can see from your circuits Vgs is negative for both arrangement, so that's why the MOSFETs are conducting.

rich11292000

9 years ago

Here's my example: http://everycircuit.com/circuit/6053155640442880

2ctiby

9 years ago

@rich11292000 nice, more here : http://everycircuit.com/circuit/6233780838203392

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