1. [INC 281 MULTIDISCIPLINARY WORKSHOP WEEKLY REPORT] March 15, 2012
Name-Surname RawiwanDewihok
Student ID. 53211825
Group Name Fueng
Engineering Team Arm , Por , Fam , Sanook , Kwang , Will , Mart , Nueng ,
Members Peak , Art
Product Design
P’Mhor, P’Pum , P’Mint , P’Pin, P’Best
Team Members
Weekly Progress
This week I was studied about drive circuit it consist 2 parts. 1) Triac was created to
correct defects in SCR it cannot active in negative side of AC. Triac’s properties that are
similar to SCR is that when conduct that is in current time as well. But triac it is different it
can active 2 directions. 2) op-to isolation is the device is connected light with electronics
devices. Optical transmission and light are all in the same devices on the basis of electrical
signals to optical signal and back of the optical signal into and electrical signal as it was.
Figure.1 Triac
Figure.2 op-to isolator
Engineering Analysis
Strong Point
- Current can flow in 2 directions.
- Editing shortcomings of SCR.
Weak Point
- Be careful about heat.
Next Week Job
- Study drive circuit more.
- Design and test circuit.
Department of Control System and Instrumentation Engineering
KING MONGKUT’s UNIVERSITY OF TECHNOLOGY THONBURI