Transistor designs

1) If rd (= 1/gd) is included in an ac-equivalent of a common-base amplifier, (a) show that the appropriate expression for Avi is [(gd + gm)(RC║RL)] / [1+ gd (RC║RL)]. (b) Show that Zo is RC║[rd + (1 + rdgm)(RE║Rs║rπ)]. 2) Design a common-emitter amplifier to provide a gain |Avi | X ...continues

Power supply design

Design a half-wave unregulated power supply to give VL = 15V at IL = 10mA with v  0.1V. Assume a 120V, 60Hz supply. What is the regulation of the power supply

ss gain and time constants

The common-emitter circuit has an emiter bypass capacitor. (a) Derive the expression for the small-signal voltage gain Av(s)=Vo(s)/Vi(s). Write the expression in a form similar to that of equation 7.59 (Av=(-Gm*Rpi*Rc)(Rs+rpi+(1+Beta)Re)*((1+s*taua)/(1+s*taub)). (b) What are the expressions for taua and taub? Attached is ...continues

Bode Plots

Sketch the Bode magnitude plots for the following functions: (a) T(s)=-10s/(s+20)(s+2000) (b) T(s)=10(s+10)/(s+1000) ...Bode plots were introduced in my second circuit analysis class, but really didn't think it was important because it looked like an outdated tool no longer in use. Other than changing s to jw and plotti ...continues

Differential Amplifier with Resistor Biasing

I am currently working on a PSpice project from my Electronic Circuit Applications class and I am having some difficulties completing it because I can't find the common/differential mode gain and common/differential input impedance. I have been struggling with this project for a week and I need some guidance. I have completed mo ...continues

power electronics

i need help laying this thing out. I came up with L = 9.635 mH, and C = 18.46 mF. I have no idea if i'm even close, or if i done it right. See attachment for the problem

Power Electronics

Been having problems with some of these power electronics questions. I have run this a few times and come up with something different everytime.

Power Electronics

I need help breaking this problem down. We DO NOT use MATLAB or Spice. The JPEG shows the entire problem with the given sets. Can anyone show me the correct set?

Power Electronics

Been having problems with some of these power electronics questions. I have run this a few times and come up with something different everytime. Please DO NOT use MATLAB or Pspice. Please break this down step by step

ripple voltage in diode circuit

Determine the capacitance required in a half wave rectifier to produce a ripple voltage less than 0.2V. Assume that the input is a 60Hz signal with maximum voltage VM=100V and the load resistance R= 10kW. I'm confused. What formulas do I use and how do I solve this?