random running lights, seminar project
DESCRIPTION
random running lights on a disk using small LEDs in effective way....TRANSCRIPT
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SUBMITTED BY:-SMRUTI RANI PATRO6TH SEM, E&TCF1001203058
SUBMITTED TO:-Er. AMULYA KUMAR PANDA(H.O.D, E&TC)
A PROJECT SEMINAR ON
RANDOM RUNNING LIGHTS
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Introduction Block diagram Circuit diagram Component Layout
Transformer Rectifier Resistors Capacitors LED 556 Dual timer IC Switch
LED arrangement Front panel of the project Conclusion
contents
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Many types of lamps are used for turn signal, brake lamps, side and clearance marker lamps, and interior lamps.
The simple, inexpensive but reliable electronic device may find numerous application such as warning indicators, exit door indicator in an auditorium, house number flasher, seat number indicator etc.
introduction
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Block diagram
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circuit diagram
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Following are the different components used in this project.
1. Transformer2. Rectifier3. Resistors4. Capacitors5. LED6. NE 556 IC7. ON-OFF switch8. Connecting Wires
components
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Transformer
It is a static electromagnetic device which transfers electrical energy(power) from one magnetic circuit to another magnetic circuit keeping frequency constant.
components
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Rectifier• converts AC to DC.• Here bridge rectifier is used.
components
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Resistors1. A resistor is a passive two-terminal electrical component that
implements electrical resistance as a circuit element.
Capacitors A capacitor (originally known as condenser) is a passive two-
terminal electrical component used to store energy in an electric field.
components
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LEDA light-emitting diode (LED) is a semiconductor light source. LEDs are used as indicator lamps in many devices and are increasingly used for other lighting.
components
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Switch• In electrical engineering, a switch is an electrical
component that can break an electrical circuit, interrupting the current or diverting it from one conductor to another.
556 Dual timer IC• It is dual version of 555 timer IC. So it can be called as dual
timer IC. • It can be substituted by NE 566 F, NE 566 N, LM 556, MC
3456, SE 556, TDB 0556.The dual timer 556 can be used with a supply voltage (Vs) in the range 4.5 to 15V (18V absolute maximum).
components
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(PinDescription)
components
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Led arrangement
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Random Running Lights consumes very little Electricity.
It is an simple, inexpensive project.
It has many applications such as exit door indicators, house number flasher, seat number indicators, warning indicators etc.
conclusion
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ANY QUERIES ?
??