Kinetic Remote Control
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Transcript of Kinetic Remote Control
Department Of Electrical Engineering
Minor Project Report On
Kinetic Remote
In partial fulfillment for the award of the Bachelor of Technology Degree of the Rajasthan Technical University, Kota.
Submitted To: Submitted By:School of Electrical Engineering Ajay Singh Solanki
Ajit Choudhary Abhishek Kumar Choudhary Dharmendra Goyal Imam Ul Haque
JODHPUR ENGINEERING COLLEGE AND RESEARCH CENTRE, BORANADA, JODHPUR (RAJ) 342001
ACKNOWLEDGMENT
1
I have taken efforts in this project. However, it would not have
been possible without the kind support and help of many
individuals and organizations. I would like to extend my sincere
thanks to all of them.
I am highly indebted to Mr. N. C. Purohit for their guidance and
constant supervision as well as for providing necessary information
regarding the project & also for their support in completing the
project.
I would like to express my gratitude towards my parents & friends
for their kind co-operation and encouragement which help me in
completion of this project.
My thanks and appreciations also go to my colleague in developing
the project and people who have willingly helped me out with their
abilities.
2
JODHPUR ENGINEERING
COLLEGE AND RESEARCH
CENTRE , JODHPUR 2009-2010
CERTIFICATE
Project report entitled “KINETIC REMOTE” submitted by
"AJAY SINGH SOLANKI, AJIT CHOUDHARY, ABHISHEK
KUMAR CHOUDHARY, DHARMENDRA GOYAL, IMAM
UL HAQUE" student of final year B.Tech, Electrical
Engineering in partial fulfillment for the award of bachelor degree
in electrical engineering is approved for submission.
DATE:
Signature of guide: Counter Signature:
(Mr. VIKAS RATHORE) (Mr. N.C.PUROHIT)
Asst. Professor HOD
School of Electrical Engineering School of Electrical Engineering
JECRC , Jodhpur JECRC , Jodhpur
3
INDEX
S. No. Content Page No.
1. Introduction 6
2. General Diagram 7
3. Principle 8
4. Circuit Description 9
5. Circuit Diagram 10
6. Material Used 11
7. Prize of Material Used 17
8. Procedure 18
9. Application 21
10. Advantages 22
4
KINETIC
REMOTE
CONTROL
5
INTRODCTI ON
Almost every entertainment gadgets at home, be it a TV, DVD
Player, Music System uses Infra Red Remote control. These
remote uses Infra Red Light for communication with the TV
device. Whatever the type of remote it uses batteries to power to
an Infra Rea LED, controlled by an electronic circuit that beams a
code sequence corresponding to the key that we press.
Unlike most other electronic gadgets an infra red remote has no on
off switches .the remote is always in on state, consuming very little
power when in a dormant state when a button is pressed goes into
an active state, transmit the control code and then goes into
dormant state again.
This project shows how to retro fit your regular remote control
device for battery free operation forever. This idea is not so much
is so on recurring batteries costs, but to remove batteries from the
system altogether.
6
GENERAL DIAGRAM
7
PRINCIPLE The voltage required by the remote control device is generated
using a DIY kinetic generator (shown above) that converts
mechanical power to electrical power, based on Faraday’s
principle. The device consists of a hollow tube of plastic or wood,
with a cylindrical magnet sealed inside the tube, and 1,400 turns of
enameled copper wire wound around the outer surface of the tube.
When the tube is shaken, the magnet travels the length of the tube
back and forth. This leads to a change of magnetic field as seen by
the wire, and generates an EMF (electromagnetic force) that is
proportional to the number of turns and the rate at which the
magnetic field is changed. Thus, if you shake vigorously rather
than gently, a larger EMF is generated. You can use this principle
to easily generate operating voltage for any infrared remote control
device.
8
CIRCUIT DESCRIPTION
This circuit consist of four main parts:-
1. Infrared remote control device
2. Faraday voltage generator
3. Charge storage component
4. Voltage regulator
Shown here is the schematic of the Faraday voltage generator, the
charge storage capacitor (capacitor C1 consisting of two
4700μF/16V capacitors in parallel), and the voltage regulator
circuit based on a low dropout (LDO) regulator.
9
CIRCUIT DIAGRAM
10
MATERIALS
11
Main component used in this project are as follow:-
[A] Enameled copper wire, 30 or 36 gauge:- Enough to roll
about 1,400 turns of wire. The gauge of the wire is not critical. We
used 36 gauge, but any other, preferably smaller gauge (larger
diameter), can also be us.
[B] Voltage regulator LP2950-3.3 (1):- This is a 3.3V output, low
dropout voltage regulator. The LP2950 is a micro power voltage
regulators with very low quiescent current (75μA typ.) and very
low dropout voltage (type 40mV at light loads and 380mV at
100mA).They are ideally suited for use in battery-powered
systems. Furthermore, the quiescent current of the LP2950
increases only slightly in dropout, prolonging battery life.
This device excellent choice for use in battery powered application
such as cordless telephone, radio control systems, and portable
computers.
FEATURES
● High accuracy output voltage
● Guaranteed 100 mA output
● Very low quiescent current
● Extremely tight load and line regulation
● Very low temperature coefficient
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● Current and thermal limiting
● Low dropout voltage
● Need only 1uF for stability
● Error flag warns of output dropout
APPLICATIONS
● High-efficiency linear regulator, voltage reference
● Battery powered systems
● Portable consumer equipment
● Desktop / Notebook computers
● Portable Instrumentation, cordless telephones Adjustable)
● Automotive Electronics, Radio control systems
● SMPS Post-Regulator, Avionics
13
[C] 1N5819 Schottky diodes (4):- A Schottky diode is a special
type of diode with a very low forward-voltage drop. When current
flows through a diode there is a small voltage drop across the diode
terminals. A normal silicon diode has between 0.6–1.7 volt drops,
while a Schottky diode voltage drop is between approximately
0.15–0.45 volts. This lower voltage drop can provide higher
switching speed and better system efficiency
APPLICATIONS
Voltage clamping
Discharge protection
Power supply
[D] 4700μF/25V Electrolytic Capacitors (2):- Two of these
capacitors are used in parallel. An electrolytic capacitor is a type
of capacitor that uses an electrolyte, an ionic conducting liquid, as
one of its plates, to achieve a larger capacitance per unit volume
than other types. They are often referred to in electronics usage
simply as "electrolytic".
14
They are used in relatively high-current and low-frequency
electrical circuits, particularly in power supply filters, where they
store charge needed to moderate output voltage and current
fluctuations in rectifier output.
They are also widely used as coupling capacitors in circuits where
AC should be conducted but DC should not. There are two types of
electrolytic, aluminum and tantalum.
Electrolytic capacitors are capable of providing the highest
capacitance values of any type of capacitor. However they have
drawbacks which limit their use
The electrolyte is usually boric acid or sodium borate in aqueous
solution, together with various sugars or ethylene glycol which are
added to retard evaporation
CIRCUIT SYMBOL
15
Electrolytic capacitors are polarized and they must be connected
the correct way round, at least one of their leads will be marked +
or -. They are not damaged by heat when soldering.
[E] Rare earth magnets (4):- cylindrical shape, 1T strength, ½"
diameter. Rare-earth magnets are strong permanent magnets
made from alloys of rare earth elements. Rare-earth magnets are
the strongest type of permanent magnets made, substantially
stronger than ferrite or alnico magnets. The magnetic field
typically produced by rare-earth magnets can be in excess of 1.4
tesla, whereas ferrite or ceramic magnets typically exhibit fields of
0.5 to 1 tesla. There are two types: neodymium magnets and
samarium-cobalt magnets. Rare earth magnets are extremely
brittle and also vulnerable to corrosion, so they are usually plated
or coated to protect them from breaking and chipping.
APPLICATIONS
Common applications of rare-earth magnets include:
computer hard drives
audio speakers / headphones
bicycle dynamos
fishing reel brakes
permanent magnet motors in cordless tools
self-powered torches, employing rare earth magnets for
generating electricity in a shaking motion
16
Prize of Components Used:-
Name of component Quantity Prize(Rs.)
Copper Wire 45 gm 25
Glass Tube 1 10
PCB 1 20
Schottky Diode 4 40
Electrolytic Capacitor 2 40
Low Drop Out Regulator 1 30
Rare Earth Magnet 7 20
Remote 1 50
Remote Tester 1 150
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PROCEDURE
1. Groove the tube (optional). The groove is where you’ll wrap
the wire. If you don’t have access to a lathe with which to cut
a groove, the wire can be wound directly onto the plain
tubing. Just use plenty of masking tape to ensure the wire
doesn’t unwind.
2. Wind the wire. Fill the groove with 1,400 turns of 36 SWG
enameled copper wire. If you have a coil-winding machine, it
will be a lot easier. If not, you can improvise with a power
drill and a helper: use the drill to slowly rotate the tube while
a friend, wearing work gloves, feeds the wire to you. Leave
about 6" of wire free on each end. When you’re done, cover
the wire coil with masking tape, and use 1mm-diameter heat-
shrink tubing to cover the 2 free ends of the wire. If you didn’t
groove the tube, just wind the copper wire directly onto the
plain acrylic tube. Be sure to use plenty of masking tape to
ensure that the wire doesn’t unwind.
3. Place the magnets inside the Faraday generator tube, stacking
all 7 to make 1 big magnet and seal the ends.
18
4. Remove the batteries from the remote control and file down
the entire battery compartment to remove all extrusions. Also
file a notch in the side of the battery compartment and the
compartment cover, so you can run the wires from the
Faraday generator inside.
5. Assemble the components from the circuit diagram
(capacitors, diodes, and LDO voltage regulator) on a
perfboard as shown in below figure. You can test the
continuity with a multi meter.
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6. Solder the output of the voltage regulator circuit onto 2
hookup wires on one end of the perfboard. You’ll eventually
solder these hookup wires to the battery terminals of the
remote control.
7. Connect the Faraday generator. First solder 2 hookup wires in
the middle of the perfboard to the input of the bridge rectifier
(cathodes of diodes D3 and D4, respectively, in the circuit
diagram). Then solder the wires from the Faraday generator to
these hookup wires.
8. Reassemble the TV remote, and fit the circuit board inside the
battery compartment.
9. On the remote control’s original circuit board, cut down the
battery terminals so that they can be soldered to the voltage
regulator circuit board. Solder them to your voltage regulator
output wires.
10. Tie the Faraday generator temporarily to the TV remote body
using cable ties, and shoot more hot glue between the remote
and the Faraday tube. Now you’re ready to shake!
20
APPLICATION
This type of remote can be used for any type of electronic gadget
like TV, DVD Player, Music Player, Air Conditioner etc. means
these type of remote can be used anywhere, where we used remote
control.
We can also implement this idea for Robotics. This can also be
used for security system of the cars or any other four wheeler.
ADVANTAGES
21
By using this type of remote we are not depend upon the batteries.
By some manual effort (shaking) the remote can be used for about
15-20 times. It turns out that it’s easy to bag the batteries, as long
as you are willing to put in a little manual effort.
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