# impedance

1. ### Input & Output Impedances of Common Emitter BJT Amplifier

I want to study about "finding Input & Output Impedances of Common Emitter BJT Amplifier" However, I could not find a decent source & document about it. Could someone supply me with some documents for that. Then that would be gorgeous for my study. Thanks :)
2. ### Input and Output Impedance of the Common Emitter Amplifier

Hi, I just have solved one of the bjt common emitter question below. However, I'm curious that how can I additionally find those things below: 1) Input and Output Impedance 2) AC Gain Here is the example and my hand draw solution. However, the question only asked to find Vout/Vin... Also, my...
3. ### Final Project - Bioimpedance Spectroscopy | Finding the right development kit

Hello, My name is Daniel and I'm a student for E&E. I started a final project about bioimpedance spectroscopy using electrodes. I found this kit - Spectra Bioimpedance and EIT Complete Kit – Mindseye Biomedical and got one. Sadly, the DFT sample rate is way too slow to achieve a smooth image...
4. ### Battery impedance measurement

For the past few days I have been trying to buy a proper battery impedance measurement device that is good and also falls under my budget of 1000 dollars. I will be mostly using it to test 3.7V Lithium ion batteries. Could anyone suggest a good measurement device for that
5. ### Impedance

If you have a common circuit with 1 resistor, 1 capacitor, and 1 inductor. Inousoidal voltage and current is applied with angular frequency, ω. Then you want to use the jω-method and express the total complex Impedance, Z, of the above circuit in terms of R,L,C and ω. Answer in the form Z = a +...
6. ### Voltage Magnitude, Phases, Current for Bus (Load Flow)

Say there are 3 buses of: Bus 1: Slack bus with a voltage source of E=1.0 and phase of 0° Bus 2: a generator and a load. Bus 3: a load. The line impedance are given below: z12 = 0.05 + j0.1 z13 = 0.02 + j0.05 z23 = j0.05 z11 = -j100 z22 = infinity z33 = -j40 The generators and loads are given...
7. ### Given 3 buses with line impedance, generators and loads provided, where must the protection circuit be allocated?

The 3 buses are Bus 1: Slack bus with a voltage source of E=1.0 and phase of 0° Bus 2: a generator and a load. Bus 3: a load. The line impedance are given below: z12 = 0.05 + j0.1 z13 = 0.02 + j0.05 z23 = j0.05 z11 = -j100 z22 = infinity z33 = -j40 The generators and loads are given below...
8. ### How to change trace width and spacing of diff pairs in the design using MentorGraphics Hyperlynx SI

Hi, I am simulating my postgraduate project using Hyperlynx SI tool. I am testing on PCIe traces of my design. I did my design using Altium and I exported to Hyperlynx file to do the simulation. But I cannot change the trace width and spacing of Differential pairs using Hyperlynx SI tool. Is...
9. ### Calculation of power factor in a RLC-circuit

Hello, I got a homework exercise about the calculation of the power factor in a RL-circuit and in a RLC-circuit. The question consists of 3 sub questions, I have managed to calculate the first 2 however I am struggling with the third one. For the calculation of the third question, the other 2...