Super charged Led Joule Thief circuit
#joule thief
#LED
#energy efficient
#low voltage
#battery powered
#DIY electronics
#circuit design
#power saving
#electronics project
#lighting
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one transistor led flasher
This is a one-transistor LED flasher circuit designed to flash a super bright LED. The circuit employs a single transistor as a driver, which receives the flash rate from LED 2, a self-flashing LED. The flash rate can be adjusted...
Nite Rider LED Lights
IC4, C1, R1 and R2 are used for the clock pulse which is fed to both the counters IC2 and IC3 Pin 14. IC1 is a Flip Flop and is used as a switch to enable either IC2 or IC3...
led protection
All optical transmitters will include circuitry designed to limit the current to a safe value that protects the LED during short-term incidents. Red, Red-Orange, and Amber Luxeon I LEDs have a peak current rating of approximately 550 mA. At this...
simple emergency led light circuit
This emergency LED light is simple, inexpensive, and easy to build. The circuit connects to the battery, activating when the main power source is unavailable, such as during brownouts. White LEDs turn on automatically. Initially, the output voltage from a...
LED voltmeter schematic needed
A simple LED-based voltmeter is required to monitor the voltage of a variable power supply.
The proposed LED voltmeter circuit utilizes a series of light-emitting diodes (LEDs) to visually represent the voltage level of a variable power supply. This circuit...
Two-LED Pilot Light
This circuit was designed on request and can be useful to those wishing to have, say, a red LED illuminated when an appliance is on and a green LED illuminated when the same appliance is off. Any mains operated appliance...
Led bar-dot level meter
A simple power meter can be configured to provide a bar or dot display for a hi-fi system. Green LEDs are used for levels 0 to 7, yellow for level 8, and red for levels 9 to indicate peak power....
2SC1815 Flip Flop LED Flasher Suite
2SC1815 Flip Flop LED Flasher is a very simple and easy-to-understand circuit.
The 2SC1815 Flip Flop LED Flasher circuit utilizes a 2SC1815 transistor, which is a general-purpose NPN transistor, to create a basic LED flasher. This circuit operates on the principle...
LED Flashlight circuit with MAX1811
White LEDs have a rated current at a voltage drop of about 3.3 to 3.4 V. It is ideal to be powered from the battery voltage which is slightly larger. Then there is the best energy used. In this I...