The document is a weekly progress report from a multidisciplinary workshop group. It discusses the group's presentation last week on the function of an electric rice cooker. The report summarizes the basic principles of transformers, including how a changing current in the primary coil induces a voltage in the secondary coil. It notes strengths of using easily available transformers but also weaknesses such as unequal voltages and current not being suitable for microcontrollers. The group's next steps are to use a transformer with a control circuit and microcontroller.

1. [INC 281 MULTIDISCIPLINARY WORKSHOP WEEKLY REPORT] January 20, 2012
Name-Surname SUTIPONG KUNKUA
Student ID. 53211831
Group Name Khon-tai
Bank (53211830)
Engineering Chanp (53211819)
Team Members Golf (53211804)
Benz (53211811)
Product Design
P’Duk-dikP’friendP’akeP’Elle
Team Members
Weekly Progress
In the last week Mygroupconducted a presentation on function of
product“electricricecooker” I’m design transformerswithThe Basic principles
transformer is based on two principles: first, that an electric current can produce a
magnetic field (electromagnetism) and second that a changing magnetic field within a
coil of wire induces a voltage across the ends of the coil (electromagnetic induction).
Changing the current in the primary coil changes the magnetic flux that is developed.
The changing magnetic flux induces a voltage in the secondary coil.The first type of
transformer to see wide use was the induction coil,The ideal transformer model
assumes that all flux generated by the primary winding links all the turns of every
winding, including itself. In practice, some flux traverses paths that take it outside the
windings.
Engineering Analysis
Strong Point
- We can easy to buy transformer.
Week Point
- Current can use for microcontroller.
- The voltage isn’tequal.
Next Week Job
- I’m use transformer control circuit and microcontroller.
Department of Control System and Instrumentation Engineering
KING MONGKUT’s UNIVERSITY OF TECHNOLOGY THONBURI