Myself HARSHITA TIWARI, B.TACH FINAL YEAR student and i want more information about the project named speed control of radiator fan using differential gear arrangement. I know only the basics related to this topic but i don't know that how to make a working model of above topic and how much cost is associated with this task..................etc

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presented by:
Wayne_Chen


DC Fan Speed Control PWM Signal Introduction
1. Speed Control Fan Structure
1-1. Use ON/OFF contr
Advantage：
Easy design and control method
Price cheaper
Disadvantage :
I. Power Dissipation is a design issue.
II. Not use friendly.
2. What is PWM Signal ?
PWM(Pulse Width Modulation): It’s a fixed frequency and pulse modulated for fan speed control.
Whenever change the duty cycle, the fan speed will be changed by system requirement
 The Purpose are :
..............etc

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Please show the project with circuit diagram and parts list..............etc

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PLEASE SEND FURTHER MORE INFORMATION ABOUT PROJECT NAMED SPEED CONTROL OF RADIATOR FAN USING DIFFERENTIAL GEAR ARRANGEMENT..............etc

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i am my first year project about clap operated speed control fan.please give me some advices.i am planning to use 555 IC and 4017 counter ic some one pz post me.
anil.waglesharma@gmail .com ..............etc

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Circuit Generates Analog Fan-Speed Control


Abstract:
A linear circuit measures temperature and controls the speed of a cooling fan by generating a variable supply voltage for the fan. Fan noise is becoming a larger issue as more electronic equipment enters the office and the home. A variable speed fan permits slower, and quieter, fan speed when temperature conditions allow. Fan-control circuits range from simple switches that boost the fan speed at a certain temperature, to digitally controlled fans with ..............etc

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clap operated robot using transistor pdf including different materials to make the project..............etc

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i want project report of this automatic fan control with clap..............etc

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fan speed control system
INTRODUCTION
Fan Tachometer
The embedded controller registers 0x84 (LSB), 0x85 (MSB) are the main fan tachometer, and report fan speed in RPM in everything since the A31 and maybe a little earlier. Not much is know about the tachometer in earlier models, or even whether they had one or not.
On the X61/X61s, one must select through EC register 0x31 bit 0 which fa..............etc

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speed control of exhaust fan using rf remote
speed control of exhaust fan using rf remote
speed control of exhaust fan using rf remote..............etc

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