Newbie: Voltage reading for this.. HELP!

B

blink01

New Member

• Mar 2, 2011

• #1

refer to this picture:

**broken link removed**

Newbie here, what should be the actual volt
measure of G, D, and S in Q27 Regulator when
I measure it for me to say its not shorted? As you can
see there are two voltage connected to D (5v and 3.3v), & S (1.5v and Ground),
what suppose to be the right voltage reading when I measure each feet with Multimeter?

 

ronv

Well-Known Member

Most Helpful Member

• Mar 2, 2011

• #2

No picture.

 

K

KeepItSimpleStupid

Well-Known Member

Most Helpful Member

• Mar 2, 2011

• #3

I see it. It takes a little while to appear for some reason.

 

B

BrownOut

Banned

• Mar 2, 2011

• #4

It's there big as day. Looks like homework.

Hint: Vs is 1.5V.

 

Last edited: Mar 2, 2011

MikeMl

Well-Known Member

Most Helpful Member

• Mar 2, 2011

• #5

Cant answer the question without knowing the values of R419 and R420.

The gate will be about Vt more than the source.

 

Last edited: Mar 2, 2011

B

BrownOut

Banned

• Mar 2, 2011

• #6

Take another look at R420.

 

MikeMl

Well-Known Member

Most Helpful Member

• Mar 3, 2011

• #7

Trick question