Weekly report 2
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This weekly report summarizes the progress of the Conthai engineering team. They tested a voltage divider circuit using three resistors to regulate voltages from 0.5V to 4.5V for a microcontroller. They calculated and measured the output voltages, finding small errors between the calculated and measured values due to resistor tolerances. Their next steps are to present their rice cooking project and finish the design.
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![[INC 281 MULTIDISCIPLINARY WORKSHOP WEEKLY REPORT] April 25, 2012
Name-Surname Mr.Narubas Younuch
Student ID. 53219012
Group Name Conthai
Golf : 53211804 , Benz : 53211811 , Champ :
Engineering Team 53211819 , June : 53211831 , Bank : 53211833
Members Rin : 54261504 , Tum : 54261512 , Golf : 54261520 ,
Chai : 54261522
Product Design
P’Dukdik , P’Ake , P’L , P’Friend
Team Members
Weekly Progress
This week, I has kept and test voltage divider circuit because. The microcontroller use voltage. I
have use the three resistors circuit, its can regulate scale voltage 0.5 v to 4.5 v from calculate, It's
can regulator scale voltage 0.4 v to 4.6 v from measure because the resistor has error.
Figure 1. Tested and measurement
voltage divider circuit of sensor
Calculate Measurement
V70° = 1.9004 V V70° = 1.8838 V
V100° = 3.0788 V V100° = 3.0621 V
V120° = 3.5236 V V120° = 3.5089 V
V190° = 4.3474 V V190° = 4.3394 V
Engineering Analysis
Strong Point
- Use the voltage drop of resistance from circuit sent to microcontroller.
- Calculate and measure voltage in circuit
Week Point
- The resistor as error.
Next Week Job
- Present project.
- Finish rice cooking project
Department of Control System and Instrumentation Engineering
KING MONGKUT’s UNIVERSITY OF TECHNOLOGY THONBURI](https://image.slidesharecdn.com/weeklyreport2-120425020942-phpapp01/85/Weekly-report-2-1-320.jpg)
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Inc281-54261512_2
1) The student tested a voltage divider circuit to adjust the resistance output of a sensor from 0-100kΩ into a voltage that the microcontroller can read from 0.5-4.5V. Measurements of the voltage divider circuit matched calculations closely with some error from component tolerances.
2) The student designed a printed circuit board with the voltage divider circuit and tested it again, finding similar results. Calculated and measured voltages from the sensor at different resistances matched closely.
3) Next steps are to present the project and finish the rice cooking project.
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This weekly report summarizes the progress of the Conthai engineering team. It discusses measuring temperature from a sensor from 26 to 202 degrees Celsius using a voltage divider circuit to regulate the voltage sent to a microcontroller. Strengths included using voltage drop to send data to the microcontroller and storing sensor data. A weakness was the sensor's non-linearity. Next week's tasks are to design and test a circuit board.
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WEEK 1 Assignment Power Amplifiers Week 1 Wor.docx
WEEK 1
Assignment
Power Amplifiers
Week 1: Work Problems 10-2, 10-6, 10-10, 10-14, 10-18, 10-22, 10-26 pg. 409-411.
Scan all work and save it for upload with the title: "HW1_Student ID", with your
student id substituted in the file name. Show all work for full credit. Upload your file
here.
LAB
Power Amplifiers
INTRODUCTION
Discuss some of the basic differences between the operation of a class A, B and C
amplifiers.
EQUIPMENT
· 1 power supply: 12V
· 1 transistor: 2N3904
· 2 resistors: 1kΩ, 50kΩ
· 3 capacitors: 0.1µF, 0.01µF, 560pF
· 1 inductor: 38.07µH
· Tektronix oscilloscope
· Waveform generator
PROCEDURE
Using Multisim construct the circuit shown below:
Calculate the resonant frequency fr – show your work and record the answer in row 1 of
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a. Use the Waveform generator to produce an input: 2.5Vpk and frequency set to the
resonant frequency.
b. Use the Tektronix oscilloscope to measure fout and record it in the table
c. Take a screen shot of circuit showing the frequency measurement on the oscilloscope.
d. Repeat steps a) and c) for each input frequency in the table.
RESULTS
fin fout
1
fr =
2 1500kHz
3 300kHz
4 546kHz
5 273kHz
6 873kHz
Discuss the results.
CONCLUSION
What is the function of this circuit?
What did you learn?
Please fill out and use the following Lab Report Template when submitting your lab work.
Please read and follow the guidelines given in the
Solution
s Template in submitting all of
your lab work.
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Assignment
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Week 2: Work Problems 11-2, 11-6, 11-10, 11-14, 11-18, 11-22, 11-26, 11-30 pg.
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Scan all work and save it for upload with the title: “HW2_StudentID”, with your student
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Upload file “HW2_StudentID” here.
LAB
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INTRODUCTION
Which types of applications are field-effect transistors preferred over bipolar junction
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Explain why junction field-effect transistors are considered voltage-controlled devices.
EQUIPMENT
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Electronics II:
Lab 3 Report Linear Voltage Regulators
Discrete Linear Regulator , Adjustable Voltage Regulator
Neeraj kumar
This document provides a report on the design of a wireless battery charger that converts RF/microwave signals to DC power. The design consists of three main parts: a transmitter, antennas, and a receiver charging circuit. The transmitter operates at 900MHz and the receiver uses a full-wave rectifier followed by a capacitor and resistor to smooth the output into DC power to charge an AAA battery. Testing showed the voltage, current, and power output decrease exponentially with distance between the transmitting and receiving antennas, with the slope smoothing out around 4 feet of separation. The design aims to provide wireless battery charging without wires or need to replace batteries.
Neeraj kumar
This document summarizes the design of a wireless battery charger that converts RF/microwave signals to DC power. The design consists of three main parts: a transmitter, antennas, and a receiver charging circuit. The transmitter operates at 900MHz and the receiver uses a full-wave rectifier followed by a capacitor and resistor to smooth the output into DC power to charge an AAA battery. Testing showed that voltage, current, and power output decrease exponentially with distance between the transmitting and receiving antennas, leveling off around 4 feet of range. The design provides a proof-of-concept for wirelessly charging batteries without physical connections.
Physics project chirag
This document describes a physics investigatory project to construct a full wave bridge rectifier. The aim is to show that alternating current (AC) can be rectified into direct current (DC). The project includes an introduction to rectifiers, materials required like diodes and a transformer, a circuit diagram, procedures to construct the circuit, an explanation of how the circuit works to rectify AC to DC, observations from testing the circuit, and conclusions. Safety precautions and uses of rectifiers are also discussed.
Physics investigatory project on RECTIFIER
This document describes a student's physics investigatory project to construct a full wave bridge rectifier. The aim is to show that an alternating current (AC) is rectified into a direct current (DC). The materials, circuit diagram, procedure, and working of the rectifier are explained. When tested, the rectifier output 12V of direct current, demonstrating that the AC input was successfully rectified. Common uses of rectifiers are also listed.
Mmm lab manual_10_mel47b
This document provides instructions for calibrating a pressure gauge in the Mechanical Measurements and Metrology laboratory. The procedure involves connecting a pressure gauge to a pressure indicator and dead weight pressure tester. Pressure is applied in steps using the tester and readings from the gauge and indicator are recorded. Percentage error is calculated and graphs of indicated pressure vs actual pressure and indicated pressure vs percentage error are plotted. Calibrating the pressure gauge ensures accurate pressure measurement in industrial applications.
Variable power supply with digital control with seven segments display
Variable power supply with digital control with seven segments displaypoornima college of engg. jaipur
Variable Power Supply with Digital Control with seven segments display is one of the applications of electronics to increase the facilities of life. It is facilitates the operation of voltage regulators around the electronics lab. It provides a system that is simple to understand and also to operate, a system that would be cheaper and affordable.Aceeptance testing and commisioning data measurement for photon beam
This document describes the acceptance testing and commissioning process for a Varian 2300 C/D linear accelerator. It outlines the objectives, which are to prepare documentation, perform safety and dosimetry measurements, and configure the machine for clinical use. The materials and methods used are described, including safety checks, mechanical tests, radiation surveys, and output calibration measurements. Results of percentage depth dose curves, beam profiles, and wedge profiles are shown. The study helps medical physics staff understand the importance of acceptance testing and commissioning to ensure safe and accurate machine performance before clinical use.
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Weekly report 2
- 1. [INC 281 MULTIDISCIPLINARY WORKSHOP WEEKLY REPORT] April 25, 2012 Name-Surname Mr.Narubas Younuch Student ID. 53219012 Group Name Conthai Golf : 53211804 , Benz : 53211811 , Champ : Engineering Team 53211819 , June : 53211831 , Bank : 53211833 Members Rin : 54261504 , Tum : 54261512 , Golf : 54261520 , Chai : 54261522 Product Design P’Dukdik , P’Ake , P’L , P’Friend Team Members Weekly Progress This week, I has kept and test voltage divider circuit because. The microcontroller use voltage. I have use the three resistors circuit, its can regulate scale voltage 0.5 v to 4.5 v from calculate, It's can regulator scale voltage 0.4 v to 4.6 v from measure because the resistor has error. Figure 1. Tested and measurement voltage divider circuit of sensor Calculate Measurement V70° = 1.9004 V V70° = 1.8838 V V100° = 3.0788 V V100° = 3.0621 V V120° = 3.5236 V V120° = 3.5089 V V190° = 4.3474 V V190° = 4.3394 V Engineering Analysis Strong Point - Use the voltage drop of resistance from circuit sent to microcontroller. - Calculate and measure voltage in circuit Week Point - The resistor as error. Next Week Job - Present project. - Finish rice cooking project Department of Control System and Instrumentation Engineering KING MONGKUT’s UNIVERSITY OF TECHNOLOGY THONBURI