1. [INC 281 MULTIDISCIPLINARY WORKSHOP WEEKLY REPORT] March 28, 2012
Name-Surname Tossaphon Khunthom
Student ID. 53211813
Group Name IS Company
Engineering Team
Thananya(15) , Pannipa(22) , Mudchima(24)
Members
Product Design
P’zatang ,P’tip , P’erng , P’fon , P’ped , P’best , P’mild
Team Members
Weekly Progress
The working principle of the circuit. Is on 220 volt AC power to the transformer T1 to
convert AC current to drop to 9-12 volts, then the change of AC current. Power switch is to DC
current the D1-D4 connected to is a circuit the Bridge-Rectifier is filter is smoothed by the capacitor
C1.
The point of the output level at 1 (9-12) V is the electric current flowing into pin 1 of the LM7805
The LM7805 will Regulate makes the voltage of 5 volts output. pin 3 of the LM7805, the output
level 2. The capacitors C2 and C3 as a filter is a smooth flow of R is limited current to the LM7805
and the drive current to the BJT. If you do not want to have or without all right to Vout 5V DC to the
connected micro next.
Figure 1. circuit Regulation
Engineering Analysis
Strong Point
In this work we are doing it at the DC power supply to go into the micro and the diodes and
transformer tools to help
Week Point
If we have not put together the parts that do work that is being calculated.
Next Week Job
The test section was calculated to work out or not.
Department of Control System and Instrumentation Engineering
KING MONGKUT’s UNIVERSITY OF TECHNOLOGY THONBURI