100% Original, Plagiarism Free, Tailored to your instructions

Order Now!

HW9 Due Tuesday April 25, 2017

In a p+np bipolar transistor circuit, grounded base circuit, α=0.99. The input circuit has a battery voltage of 1 V. Assume the input diode turns on at 0.6V(i.e. no IE until 0.6V, after that the diode current increases vertically without resistance) .The series resistance in the input circuit is 100 ohm. The output circuit has a battery voltage of 40 V, and a load resistance in the output is 1k ohm.

Draw the dc Q conditions for both input and output. What is the DC Q point current and             voltage  in the output collector-base circuit? Draw a load line curve for the input and         output. Show the intersection points for both.

In the above transistor, if Wb=1 micrometer, and the doping in the base is 2E17/cm3, and base and collector are equally doped, at what battery voltage in the CB circuit will the device break down? The Avalanche field  is 5E5 V/cm.
In the transistor of #2, if I reduce the base and collector doping to 1E16/cm3, at what battery voltage in the CB circuit will the transistor break down?
In problem 1, now I overdrive the transistor by reducing series resistance in the input circuit. [That drives more current in the input and therefore in the output circuit]. Assume that saturation occurs when Vcb flips sign and become +0 .4V.  What must the new series resistance in the input circuit be to achieve this? Assume that until then, α=0.99.
MOSFET amplifier. n channel. VT=1V. VGS=3 V. Z/L=40. Mobility=500 cm2/V-s. Cox=3.45E-7 F/cm2. Battery voltage in the output circuit= 40 V. RG (in the gate circuit)=100 ohm. RL in the output circuit =2k. A small ac voltage is in the input circuit.
Draw the dc and ac equivalent circuits
Draw the I-V curve on the output. Show the value of the saturation knee- point. Show the load line and intersection(Q) point. Calculate the Q point values for current(IDS) and voltage(VDS)

Calculate trans-conductance gm.

Calculate the amplification factor.


Now I use the MOSFET of #5 as a logic gate – inverter. Assume that the I-V curve only has two regions-linear from 0V to knee point for saturation, and then saturation I value (two straight lines). Using this approximation, draw IDS VDS curves (to scale) for values of VGS increasing by 1 V from 0V. A family of curves will result- 5 in all. Label each one with the VGS value. What is the value of the output voltage when the MOSFET is used as an inverter with VGS= 4V? What is the current?


Our Service Charter

  1. Excellent Quality / 100% Plagiarism-Free

    We employ a number of measures to ensure top quality essays. The papers go through a system of quality control prior to delivery. We run plagiarism checks on each paper to ensure that they will be 100% plagiarism-free. So, only clean copies hit customers’ emails. We also never resell the papers completed by our writers. So, once it is checked using a plagiarism checker, the paper will be unique. Speaking of the academic writing standards, we will stick to the assignment brief given by the customer and assign the perfect writer. By saying “the perfect writer” we mean the one having an academic degree in the customer’s study field and positive feedback from other customers.
  2. Free Revisions

    We keep the quality bar of all papers high. But in case you need some extra brilliance to the paper, here’s what to do. First of all, you can choose a top writer. It means that we will assign an expert with a degree in your subject. And secondly, you can rely on our editing services. Our editors will revise your papers, checking whether or not they comply with high standards of academic writing. In addition, editing entails adjusting content if it’s off the topic, adding more sources, refining the language style, and making sure the referencing style is followed.
  3. Confidentiality / 100% No Disclosure

    We make sure that clients’ personal data remains confidential and is not exploited for any purposes beyond those related to our services. We only ask you to provide us with the information that is required to produce the paper according to your writing needs. Please note that the payment info is protected as well. Feel free to refer to the support team for more information about our payment methods. The fact that you used our service is kept secret due to the advanced security standards. So, you can be sure that no one will find out that you got a paper from our writing service.
  4. Money Back Guarantee

    If the writer doesn’t address all the questions on your assignment brief or the delivered paper appears to be off the topic, you can ask for a refund. Or, if it is applicable, you can opt in for free revision within 14-30 days, depending on your paper’s length. The revision or refund request should be sent within 14 days after delivery. The customer gets 100% money-back in case they haven't downloaded the paper. All approved refunds will be returned to the customer’s credit card or Bonus Balance in a form of store credit. Take a note that we will send an extra compensation if the customers goes with a store credit.
  5. 24/7 Customer Support

    We have a support team working 24/7 ready to give your issue concerning the order their immediate attention. If you have any questions about the ordering process, communication with the writer, payment options, feel free to join live chat. Be sure to get a fast response. They can also give you the exact price quote, taking into account the timing, desired academic level of the paper, and the number of pages.

Excellent Quality
Zero Plagiarism
Expert Writers

Instant Quote

Single spaced
approx 275 words per page
Urgency (Less urgent, less costly):
Total Cost: NaN

Get 10% Off on your 1st order!