To get full information or details of embedded c code for temperature controlled fan please have a look on the pages

http://seminarsprojects.net/Thread-embedded-temperature-based-fan-speed-controller-using-at89s52-microcontroller

if you again feel trouble on embedded c code for temperature controlled fan please reply in that page and ask specific fields in embedded c code for temperature controlled fan ....etc

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To get full information or details of temperature controlled fan using microcontroller please have a look on the pages

http://seminarsprojects.net/Thread-automatic-temperature-controlled-fan-using-microcontroller

http://seminarsprojects.net/Thread-automatic-temperature-control-of-vaccum-brazing-furnace-by-using-plc-full-report

http://seminarsprojects.net/Thread-temperature-controlled-fan-project

if you again feel trouble on temperature controlled fan using microcontroller please reply in that page and ask specific fields in temperature co ....etc

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plz help..its for my colg seminar..required for final year project
plz help..its for my colg seminar..required for final year project ....etc

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INTRODUCTION
0-100 C electronic temperature controlled relay is a circuit using which the temperature can be controlled with the help of a LM35 temperature sensor.
The LM35 series are precision integrated-circuit temperature sensors, whose output voltage is linearly proportional to the Celsius (Centigrade) temperature. The LM35 thus has an advantage over linear temperature sensors calibrated in Kelvin, as the user is not required to subtract a large constant voltage from its output to obtain convenient Centigrade ....etc

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Basic block diagram of microwave oven and function of each block ....etc

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HISTORY
1930: proposal for the use of electric field for heating dielectric material.
1945: Heating effect of microwaves was discovered accidentally.
1947: World s first microwave oven was discovered.
1954: An improved version came into existence.
1967: The world s first popular home model was introduced.
PERCY SPENCER- the inventor
Born in Howland, Maine, orphaned at a young age and raised by his aunt and uncle.
never graduated from school. Went to work in a mill at a age of 12.
In 1912, joined t ....etc

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How a Microwave Oven Works



What are Microwaves

Microwaves are a form of electromagnetic energy, like light waves or radio waves

Microwaves are used extensively in communications
such as to relay long-distance telephone signals, television programs and computer information across the earth or to a satellite in space.

Good for transmitting information because it can penetrate haze, light rain and snow, clouds, and smoke.

Also used in radars and in detecting speeding cars.

Microwave has becom ....etc

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to get information about the topic automatic temperature controlled fan circuit full report,ppt and related topic refer the page link bellow
http://seminarsprojects.net/Thread-automatic-temperature-controlled-fan

http://seminarsprojects.net/Thread-automatic-temperature-control-of-vaccum-brazing-furnace-by-using-plc-full-report

http://seminarsprojects.net/Thread-temperature-controlled-fan-project

http://seminarsprojects.net/Thread-fan-speed-control-circuit ....etc

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i have present you two circuit select best one from it ..

P1__22K Linear Potentiometer (See Notes)

R1__15K @ 20 C n.t.c. Thermistor (See Notes)
R2__100K 1/4W Resistor
R3,R6__10K 1/4W Resistors
R4,R5__22K 1/4W Resistors
R7__100R 1/4W Resistor
R8__470R 1/4W Resistor
R9__33K 4W Resistor

C1__10nF 63V Polyester Capacitor

D1__BZX79C18 18V 500mW Zener Diode
D2__TIC106D 400V 5A SCR
D3-D6__1N4007 1000V 1A Diodes

Q1,Q2__BC327 45V 800mA PNP Transistors
Q3__BC337 45V 800mA NPN Transistor

SK1__Female Mains socket

PL1__Male Mains plug & ....etc

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to get information about the topic temperature controlled fanfull report ppt and related topic refer the page link bellow

http://seminarsprojects.net/Thread-automatic-temperature-controlled-fan

http://seminarsprojects.net/Thread-temperature-controlled-fan-project

http://seminarsprojects.in/attachment.php?aid=15652

http://seminarsprojects.net/Thread-temperature-controlled-fan-for-home-application

http://seminarsprojects.net/Thread-temperature-controlled-dc-fan-using-pic18f452-microcontroller-full-report ....etc

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