Pmos Definition and 13 Threads

Some of my colleagues and I captured the i_D vs V_ds/V_sd curves for the CD4007 MOSFET IC (http://www.ti.com/lit/ds/symlink/cd4007ub.pdf). We did this for the NMOS and PMOS transistors. I have attached the curves to this post. The NMOS curve is as expected. However, the PMOS curve seems to be...

Homework Statement Homework Equations Id=K*(Vsg-Vth)2 KVL The Attempt at a Solution On part A, Haven't had much experience with PMOS. Used large signal model, to find Rs. Equivalent circuit: We know that Vs=0. That means Vd=-7.5 V. If we say the voltage across Rs is Vdd-Vd, then that...

I am new to using MOSFET transistors as load switches. Here, I am trying to trigger the P-channel MOSFET to run a current through the 180 ohm resistor. I can not figure out what I am doing wrong. It is supposed to turn on for a small moment (at the zero-crossing moment of the AC phase), then...

I have a simple conceptual question rather than an actual problem so pardon me for not using the provided template. There's a question in my Microelectronic Circuits book involving this circuit: where it states that Part of the solution involves this equation: VOV4 = VD4 - VS4 (equation...

Hey guys. I am simply trying to derive the equation for Vout in a PMOS inverter (attached). I know that in an NMOS inverter (which has the resistor in top of the transistor instead of the bottom) the equation for Vout is: Vdd - id*rd. But how does the resistor being in the bottom change...

AC coupling using NMOS Hello. What does AC coupling by using NMOS and PMOS actually means?

Homework Statement Find the logic function (without body effect) Homework Equations Nmos, Pmos current equations (in each state of the transistor). The Attempt at a Solution I am looking at the circut and get confused :( don't know where to strart from... help please? ...

we know that, CMOS is used rather than NMOS and PMOS for greater speed of operation. but, using PMOS and NMOS together for CMOS structure, how can we operate it for greater speed? :::: in CMOS structure, P and NMOS are shown one beside another.(for many cases,though there are many...

Homework Statement Please tell me about NMOS and PMOS, What are their Structure and Application Homework Equations The Attempt at a Solution

Hi, I believe that to make a PMOS work, Vgs (th) needs to be negative but when I give -5V to source and connect it in a source follower mode i.e. vg = -5V, I do get an output. Can anyone tell me how and why? Thanks, - Hemant

Hi Can someone help me on how i can calculate the input common mode range for this pmos diff pair. I'd have an idea if it was an NMOS diff pair but am kinda uncertain of this. I'm looking for equations for the input signal ranges of Vmax and Vmin Thanks

Here is the problem: The PMOS transistor in the figure is conducting current. (a) Is V_TP > 0 or V_TP < 0 for this transistor? (b) Based on the value of V_TP, what type of transistor is in the circuit? (c) Is the proper symbol used in this circuit for this transistor? (d) If the symbol...

I have a PMOS transistor circuit set up. These are my parameters: Vthreshold = -0.4 V Vgs = -3 V Vgt = Vgs - Vthreshold = -3 + 0.4 = -2.6 V Vds = Vgs - Vthreshold = -2.6V I'm trying to figure out what operating region this stupid thing is in. There are so many different ways of figuring...