103 Projects Using LED's

	103 Projects Using LED's T.R. Mishra BPB
	Reseña
	Electroluminescent semiconductor devices are assuming a great importance in electronic world. There are now many devices related to this family. The electroluminescent panels, laser diode, infra red diode, light emitting diode (LED) and LED Displays are some of the important members of this family. The electroluminescence is a phenomenon occurring when a semiconductor material emits light under the influence of electric field. We are concerned here with the LEDs and the LED Displays which are now increasingly used by the equipment manufacturers. The LEDs have very wide variety of applications, especially in read-out circuits and indicators. They are now used where fast and low power devices of the greatest possible life—10, 000 to 10, 00, 000 hours—are required.
Los dispositivos electroluminiscentes de semiconductores están asumiendo una gran importancia en el mundo de la electrónica. Ahora hay muchos dispositivos relacionados con esta familia. Los paneles electroluminiscentes, diodo láser, diodos infrarrojos, diodos emisores de luz (LED) y Displays LED son algunos de los importantes miembros de esta familia. La electroluminiscencia es un fenómeno que ocurre cuando un material semiconductor emite luz bajo la influencia del campo eléctrico. Nos ocupamos aquí de los LED y las pantallas de LED, que son cada vez más utilizados por los fabricantes de equipos. Los LEDs tienen muy amplia variedad de aplicaciones, especialmente en lectura fuera circuitos e indicadores. Ahora se usan en dispositivos de potencia rápidos y de bajo del mayor número posible de la vida-10000 a 1000000 horas son requeridos.
INDICE
Common LED Symbols LED Pilot Lamp Test Instruments Using LEDs LED Indicators Voltage Monitors LED Flashers LED as a Reference Voltage Element LED with Logic Elements OPTO-EIectronic Projects LED Display Projects LED Games & Novelty Projects Miscellaneous LED Application Circuits                        Consulta el Libro (23 MB) por TurboBit y MediaFire:
INDICE GENERAL
Common LED Symbols. Electrical Characteristics. Driving LED with D.C. Voltage Source. Driving LED with A.C. Source. Experimental Power Supply Unit. 5 Volt Logic Power Supply Unit. Verifying LED's Characteristics. Experimental Set up..  LED Pilot Lamp. Pilot Lamp in Battery Eliminators. Pilot Lamp for Battery Powered Equipment-. Milli-watt Flashing Pilot Lamp. Low Power Flashing Pilot Lamp. Flashing Pilot Lamp. LED Pilot for A.C. Mains. LED Night Lamp. Low Current ON/OFF Indicator. Low Current Flashing Pilot Lamp Using.  CMOS Timer Mains Operated LED.  Test Instruments Using LEDs. D.C. Continuity Checker. Versatile Diode Tester. Diode Polarity Senser cum Continuity Checker. Junction Verifier. Simple PNP/NPN Transistor Checker. LED Tester and Evaluator. Ultra-mini Logic Probe. Operational Amplifier Checker. SCR Tester Using D.C. Gate Control. SCR Tester with A.C. Gate Control. Electrolytic Capacitance Meter. Soil Moisture Meter..  LED Indicators. Blown Fuse Indicator. Water Level Indicator. Sound Source Indicator. Add-on Recording Level Indicator Using.  Timer NE 555 Level Indicator. Polarity Reversal Indicator. Current Flow Indicator. F.M. Tuning Indicator. Zero Beat Indicator.  Null Indicator.  Voltage Monitors. Simple Battery Voltage Monitor. LED/Zener Voltage Monitor. Battery Voltage Warning Device. Efficient Battery Voltage Monitor. Under Voltage Indicator. CMOS Voltage Monitor. Nicad Battery Indicator.  LED Flashers. Complementary Transistor Flasher. Low Current Flasher Unit. Collector Coupled Multivibrator Flasher. Twin LED Flasher. Unijunction UJT Flasher. Flasher Using P.U.T.. Logic LED Flasher. Dual Flasher with TTL 74123.  Low Power CMOS Flasher. NE555 Emergency Flasher. LED as a Reference Voltage Element. LED as a Low Voltage Zener Diode. Stable Reference Voltage Source. Regulated Power Supply Unit (1.5V). Stabilised Bench Power Supply. Simple Nicad Battery Charger. Full wave Nicad Battery Charger. Constant Current Nickel Battery Charger. Stable Reference Voltage Source. Compensated Reference Voltage Source. Multiple Reference Voltage Source.  LED with Logic Elements. Monostable Multivibrator. Flip-Flop. Astable Multivibrator. Random Output Generator. LED Pulser. Low Cost Logic Probe. Precedence Detector.  OPTO-EIectronic Projects. LDR Probe. Opto-Isolator. Light Sensing Probe. LED Triggered SCR. LED Photo Timer. Light Switch. Darkness Detector. LED/LDR Compressor/Expander Unit. LED/LDR Solid State Relay. LED Power Controller. LED Display Projects. Number Displaying Toy.  Logic Probe Displays Logic Level "1" or '0'. Tri-State Logic Probe. Sequence Generator and Timer. Simple Binary Counter..  LED Games & Novelty Projects. Strength Meter. Flashing Seconds Display. CMOS Die. Simple Touch Plate. Novel Sequential LED Flasher. Head or Tail Using CMOS Counter. Head or Tail Using 555 Timer. Novel Disco Display. Who Won the Toss. Wheel of Fortune.  Miscellaneous LED Application Circuits. LED Metronome. Live Circuit Tester. Magnet Operated LED. Telephone Memory. LED Light Sequential Display. LED Level Indicator. Three-way Remote LED Control. LED RF Indicator. Crystal Checker. LED Function Indicator.  Protection Circuit for Battery Operated Equipment. Psychedelic Light Display.  Appendix.