Lectures at 2pm on Monday zoom 93320674236

Assignments submission at Gradescope

Section | Instructor | TA | Zoom link |
---|---|---|---|

Tuesday, 2pm | Eugeniy E. Mikhailov, Ran Yang | William Miyahira | zoom 93143887882 |

Wednesday, 2pm | Eugeniy E. Mikhailov | Ziqi Niu | zoom 93143887882 |

Thursday, 2pm | Ran Yang | Robert Behary | zoom 97369875209 |

- Prof. Mikhailov hosts office hours every Monday at 1pm zoom 91864157431
- Ziqi Niu 1-2pm on Tuesdays zoom 4811294862
- William Miyahira 1-2pm on Wednesdays zoom 97650003970
- Robert Behary 1-2pm on Thursdays zoom 95069177936

Everyone has a favorite plotting software. Though if you are using Excel and similar things, then you are riding a bicycle in the space exploration time.

The university provide license for Matlab but you need to request it. Proceed to W&M Matlab page to request it.

Matlab comes comes with many toolboxes, among them for this class you need

- Curve Fitting Toolbox

The rest is optional and can be installed later.

Matlab should be installed in every campus computer lab and there is also web based version. But it might be good to have your own.

There is also one page Matlab tutorial for a very quick introduction to Matlab fitting.

If you need a more advance/nonlinear fitting hints. Have a look at fitting introduction materials of Phys-256 class which I taught. You will probably find super useful the fitting chapter from my book “Programming with MATLAB for Scientists: A Beginner’s Introduction” book which is available at amazon and at the CRC Press.

Examples of plots with python at Prof. Yang page

- Syllabus
- DC Circuits Basics
- Voltage divider

lecture 01 slides, lecture 01 slides with marks

Reading material - manual DC_circuit_basics.pdf

HW and Lab assignment, make sure that you have an account at Multisim circuit simulator

- Kirchhoff’s Laws
- Thevenin’s and Norton’s theorems

- Capacitors
- Inductors
- Complex impedances
- Voltage and current phase shifts on capacitors and inductors

Reading material - manual LabManual_Chpt3.pdf skip part about Transformer, and just glance how to use complex impedance to solve RC circuit.

- Power dissipation
- Fourier transform
- Transfer function and Bode plots
- Filters

Reading material - manual LabManual_Chpt4.pdf skip part about LC filters and transmission lines

- How AC scope setting works. Possible issues.
- Cascaded connections
- Rule of 10
- Higher order filters
- Low and high pass shelved filters
Software simulators

- Lecture 05 video at panopto

- Op-amps introduction
- Buffer and follower circuit
- Non-inverting amplifier circuit
- Inverting amplifier circuit
- Gain Band Width product property
- Reading data sheets

- Superposition principle
- Summing inverting amplifier
- Naive differential amplifier
- Differential amplifier
- Note about tunable input impedances in differential circuits
- OpAmp stands for operational amplifier
- Example of a circuit which does arithmetic with OpAmps

- Integrator
- Differentiator

- Comparator
- Schmitt trigger: comparator with a hysteresis
- Relaxation oscillator

Note that the manual discusses uni-polar comparators. In the lecture, we derive a more general case for bi-polar comparators based on OpAmps.

For the period of oscillations refer to the slides. I made a factor of 2 mistake in the video.

- Diodes
- Diodes applications
- Half-wave rectifier
- Full-wave rectifier
- Frequencies doubling and summing
- Photodiodes

- Feedback
- Proportional feedback
- Positive and negative feedback
- PID: Proportional, Integral, and Derivative controller

run it in Matlab as

```
S0 = .1; Sd = 1; tau = 10; Gp = -10; Gi = -2; Gd = 0;
[t,S] = pid_dynamics(S0, Sd, tau, Gp, Gi, Gd);
```

**extra materials:** Feedback for physicists: A tutorial essay on control if you want a deeper knowledge about feedbacks.

Please see the blackboard site. Possibly outdated files

- OpAmp feedback - new view
- OpAmp output resistance
- OpAmp driving capacitive loads
- Emitter follower

- Final project description adjusted deadlines on 04/23 at 1:15pm

Read the assignment carefully. There are multiple deadlines. It is OK to start assembling a team and to discuss strategies ahead of time.

Use office hours wisely, we are here to help.