Running Lights
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WHAT IS LED RUNNING LIGHT? DC circuit An electronic light source Discovered in the early 20th century Made from variety of inorganic semiconductor material • Produced in an array of shapes and sizes (small area) • • • •
MECHANISM
APPLICATIONS • • • • •
Bicycle lighting Display lighting in art gallery Stage lighting Christmas lighting Automotive lighting
ADVANTAGES • Size – can be very small and easy to populated on circuit board • On/Of time- light up very quickly • Cool light- radiate very little heat • Efficiency- produce more light per watt • Lifetime- can have a long use full life
COST Materials
Price (RM)
Electronic 10-LED running lights Battery 9V
13.00
Tin
3.00
Total
4.00
20.00
Components in circuit Components LED 9v battery clip 16 pin IC Trimmer pot Resistor Transistor Capacitor
Quantity 10 1 1 1 5 2 3
Components in the circuit
Light-emitting diode (LED) • Electronic light source
Integrated circuit (IC) -called chip or microchip - Function as an amplifier ,oscillator, computer memory or microprocessor
Trimmer pot A miniature adjustable electric components - to be set correctly when installed in some device.
Resistor •
Used to limit current in circuit • Unit : Ohm (Ω)
Transistor • Semiconductor device used to amplify or switch electronic signals • PNP resistor
Capacitor • Store energy • Unit Farad (F)
MECHANISM
APPLICATIONS • • • • •
Bicycle lighting Display lighting in art gallery Stage lighting Christmas lighting Automotive lighting
ADVANTAGES • Size – can be very small and easy to populated on circuit board • On/Of time- light up very quickly • Cool light- radiate very little heat • Efficiency- produce more light per watt • Lifetime- can have a long use full life
COST Materials
Price (RM)
Electronic 10-LED running lights Battery 9V
13.00
Tin
3.00
Total
4.00
20.00
Components in circuit Components LED 9v battery clip 16 pin IC Trimmer pot Resistor Transistor Capacitor
Quantity 10 1 1 1 5 2 3
Components in the circuit
Light-emitting diode (LED) • Electronic light source
Integrated circuit (IC) -called chip or microchip - Function as an amplifier ,oscillator, computer memory or microprocessor
Trimmer pot A miniature adjustable electric components - to be set correctly when installed in some device.
Resistor •
Used to limit current in circuit • Unit : Ohm (Ω)
Transistor • Semiconductor device used to amplify or switch electronic signals • PNP resistor
Capacitor • Store energy • Unit Farad (F)
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