This weekly report summarizes the progress of a student group working on a mosquito killing machine product. In the report, the student discusses having issues with the power supply not providing enough current for all parts of the product, including the LED function they are working on. The student learned it is better to design based on the desired power of the LED first before calculating the needed current and voltage. While they gained knowledge on transistor circuits, the group still needs to resolve the power supply issue to balance the demands of all parts. Next steps are to determine the voltage to be used.

1. [INC 281 Multidisciplinary workshop weekly report]
April 20, 2012
Name-Surname Mr. Thitiwute Suwanmalee
Student ID. 53219006
Group Name Habithai
Gangs53211833 Art53211839
EngineeringTeam
Toss 53211841 O53211846
Members
Boon 53211806 Tob53211808
Product Design
P”pete,P”ice,P”pae,P”tuang
Team Members
Weekly Progress
My group makes the product “Mosquito’s killer machine”. In my part scope of work
is LED function. On this week we have a problem about power supply. All of the current in every
part of product are over than power supply. In my part “LED function” a problem is about current
that use over too much. Because we use the current is point to calculate but teacher teach me to
think we should to set the power of LED that we want then we will calculate current and voltage
that we should to use. If we change power supply we will have problem because it’s bigger than old
supply and can’t get it into product.
Engineering Analysis
Strong Point
-I get knowledge about transistor circuit that used to make LED function.
-I should set power of LED that I want to use then calculate voltage and current for use in
circuit.
Week Point
-We have problem about power supply that we want to use are unbalanced with all of part in
product.
Next Week Job
-We will conclude about voltage that we want to used.
Department of Control System and Instrumentation Engineering
KING MONGKUT’s UNIVERSITY OF TECHNOLOGY THONBURI