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LECTURE A Complex Impedance Tuesday 01-09-2024
Complex Numbers Tuesday 01-09-2024
Complementary information
Solution of the forced harmonic mechanical oscillator using phasors
Representation of harmonic waves using phasors
How the complex numbers were invented (Interesting video)
Its inventors assumed they were giving up the connection between Mathematics and reality (by
accepting areas of negative values), however complex numbers are conceived now part of a deeper
truth (the Schrodinger Eq., which describes quantum Mechanics. )
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Lab 1 RLC Series Circuit Resonance, Complex Impedance Thursday 01-11-2024
Students can continue working on Lab-1 until Tuesday 01-23-2024
Writeup required The write up report for Lab-1 due date is Thursday Feb 1st
Suggstions to ellaborate the write up Laboratory Report Guidelines
Send electronic copy to kacharat@pdx.edu (with copy to andres@pdx.du)
Complementary information
LC Parallel Circuit Resonance, complex impedance
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Lecture B Microcontrollers - Overview Thursday 01-25-2024 SRTC 228
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Lab 2 Microcontrollers: Inputs and Outputs Thursday 01-25-2024
Rubric for grading Lab-2
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Lab 3 Combinational_Logic 8-digit and Matrix displays Tuesday 01-30-2024
Application of combinational logic strategies to implement different display schemes into two hardware
units, the “7 Segment Display” and the “Dot Matrix Display”.
Verification that the outputs of the circuit block are determined only by the logical function of their
current input state.
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Lab 4 Implementation of Positive and Negative Feedback with Operational Amplifiers
4A. Positive feedback: Schmitt Trigger Comparator Tuesday 02-06-2024
4B. Negative feedback: The golden rules of an Operational Amplifier Thursday 02-08-2024
Complementary Information
Notes on Operational Amplifiers
Input and Output Impedance
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Lecture C Transfer Function and the Laplace Transformation Tuesday 02-13-2024
Complementary information
Passive RLC low-pass solved in time-domain and Laplace-domain
Active low-pass RC filter in the Laplace and the time domains
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Lab 5 Voltage controlled oscillator Writeup required Tuesday 02-20-2024 Week-7
The write up report for Lab-2 is due on Tuesday March 5
Suggstions to ellaborate the write up Laboratory Report Guidelines
Send electronic copy to kacharat@pdx.edu (with copy to andres@pdx.du)
Rubric fror grading the VCO Lab
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Lab 6 Digital to Analog Converter Thursday 02-29-2024 Week 8
Complementary information
The ADC/DAC CN0554 device
Analog-to-digital conversion: The CN0554 features the AD7124-8, a 24-bit Σ-Δ ADC
Digital c-to-analog conversion: The CN0554 features 16 single-ended, 16-bit analog
outputs using the LTC2688 voltage output DAC.
Rubric for Lab-6
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Lab 7 Hardware Interrupts and Wireless NEC Communication Protocol for Accurate Timing No required
Suggstions to ellaborate the write up Laboratory Report Guidelines
Send electronic copy to kacharat@pdx.edu ( with copy to andres@pdx.du )
Rubric for grading
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Lab 8 RC Low Pass Filter Tuesday 03-05-2024 Week 9
Rubric for Lab-8
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Lab 9 Stepper Motor Control Not required in 2024
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Lab 10 Servo Motor and Ultrasound Sensor Not required in 2024
Complementary information
Stepper Motor Control with Sequential Logic Circuit
(Alternative to the program in Fig. 27 to drive the stepper motor )
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Lab 11 Liquid Crystal Display No required in 2024
Session of Micro-controller Projects Presentation Thursday 03-14-2024 Week-10
Prepare a 5 to 10-minute presentation.
Your attendance for the full session is requested.
We will run a survey among all classmates to select the best 03 projects presented.
The accompanied project report is due on the week of final exams. Send electronic copy to
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No Lab sessions during the final-exam week
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Lab notebook
Hardcopy or electronic copies are due on Friday 03-22-2024
Electronic copies shoukd be submitted to andres@pdx.edu
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END of WINTER 2024 SESSIONS
Lecture C
Transistors (Bipolar and Field Effect Transistors)
Note on PN JUNCTIONS
TIMER INTERRUPTS: Voltage Controlled Oscillator Implemented with the Arduino
References:
Operational Amplifiers Open - loop and Closed - loop gain, op - amp model, slew rate.
Negative feedback and Applications using Operational Amplifier Amplifiers Circuits, transfer function, active low pass filters.
Transistors Bipolar junction and Field effect transistors.
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