Recent content by pforpashya

Homework Statement Find output voltage of differential amplifier having differential gain of 100 and common mode gain 0.1 if input voltages are v1=2+0.55sinwt and v2=0.5-0.005sinwt Homework Equations The Attempt at a Solution well, from sedra smith book i found the formula for...

can anybody tell me how to attach file here?

Hi all, I am studying cs_mosfet amplifier and i have simulate one simple amplifier with VDD=+12v Vs=1v ID=0.5mA gm=1mA/v Vd=6v. I am getting a signal that is amplified by gain -11.3 by calculation and also on simulation but when doing on hardware i am getting gain around -40 to -45 I...

can someone through light on "why we have to include Boltzmann constant in calculation of VT" in simple words?

Thanks alot...I have to solve one unsolved problem on darlington pair before saturday. I hope i will get right answer as i have to just multiply gm by output resistance of darlington pair.

ok. thank you for your reply. to find overall gm (i.e. gm2 as gm1 of first pair in darlington is very small) of the device should i divide Ic2 by VT1+VT2 i.e. 52mV?

For BJT single stage amplifier we write gm=Ic/VT where VT is Thermal voltage whose value is 26mv. Now if we have a Darlington pair i.e. two transistor connected in CC-CC mode what will be overall gm. Will the collector current Ic be divided by 52mv or 26mv. (Because in gain equation gm comes)...

I have to implement CD,CS,CG MOSFET amplifiers. I have discrete IC's such as 2N4351 and BS170. I also have CD4007 IC. How to use CD4007 to implement single stage MOSFET amplifiers. I have seen Datasheet of CD4007, it has 3 NMOS and 3 PMOS transistors connected in cmos fashion. As I will be...

Can somebody tell me exactly what is 'S' in frequency domain? I know that s=σ+jw where σ is neper frequency and jw is complex frequency but i want the precise information on s you can suggest me a book in which it is clearly explained. Thank you.

Thnks for your reply. i have to verify answer with Nodal analysis. When I am applying nodal analysis in the middle node what will be the equation of current flowing through capacitor? if i consider node to be v1 then current through capacitor is 0.5 d/dt(v1-3)? or 0.5d/dt (V1)?...the...

Homework Statement =137200878&filters[recent]=1&sort=1&o=0"]http://s741.photobucket.com/user/pforpashya/media/studybitch/untitled_zps4cac3f38.png.html?filters[user]=137200878&filters[recent]=1&sort=1&o=0 Homework Equations The Attempt at a Solution Well I already got the solution and also...

please help me solving 2 electrical network problems file:///C:/Documents%20and%20Settings/user/My%20Documents/My%20Pictures/From%20RSPC_Pashya/Camera%20roll/WP_000127.jpg In first problem I have to find current through 5Ω resistor using Thevinins eq. So, in first step i removed 5Ω...