My Light Diagram

This is an automatic emergency lamp with day light sensing, means it senses darkness/night and turns ON automatically. Similarly it senses day light and turns OFF automatically. A simple emergency lamp which does not require any special equipment; even a multimeter to assemble and use. Any individual who can do a good quality soldering must be able to build this circuit successfully. This can be easily accommodated in the defunct two 6 watt tube National Emergency Lamp or any PL tube type emergency lamp. The difference will be in the working; it will work non stop for more than 8 hours. Deep discharge is taken care by the LED characteristic and over charge protection is taken care by the fixed voltage regulator.This uses a simple 3Pin fixed regulator which has a built in current limiting circuit. Simple Emergency Light Circuit Diagram: The only required adjustment is the preset which has to be set to ensure the LEDs just light up (it should be left at that position). The 5mm LDR is jus...

The below circuit is an LED light solar emergency very simple to make the project cheaper, it was created for a working voltage of 6V and has a LED power 3watts In the circuit, you can see a solar panel 12 volts per 5watt, the LM7806 is used to charge the battery of 6 volts. The system is automatic, at dusk the lights turn on automatically with a help of an LDR and transistor. Solar Emergency Light Circuit Diagram

The series of emergency lights on this one is a series of emergency lighting is quite simple and not difficult to make.  Frankly this circuit is not my own design, but at least this series can add to your collection of electronic circuits. The circuit is actually almost the same as the battery charger circuit, it's just that in this emergency coupled switching circuit as a circuit breaker when the circuit load is connected to the supply voltage of 220 volts or in other words on the charging position. Meanwhile, when the voltage of 220 volts is lost (PLN lights off), then automatically switches the load switching circuit and turn on emergency lights, where the supply that is used is derived from batteries that have been installed in stand-by position. In a series of emergencies over the use of LED as a lighting load emergency. And indeed these days we find a lot of emergency lights that are sold in the market that use LEDs, but the LED is used instead led carelessly but has led a gl...

The big fear of every developer of a microcontroller or computer-driven control system is that the computer or controller could crash while it is in the middle of controlling some-thing and that the output signal will remain on ‘full throttle’. In this scenario motors could continue to spin faster and faster or a heating element could become red hot, without the system taking any corrective action. In reality, any control system needs some sort of emergency stop, which will turn everything off the moment something goes wrong. Microcontrollers or computers will usually have a spare TTL output, which can be used for this purpose. By adding a few lines of code to the program, this additional output can be made to toggle high and low periodically. This can save a lot of trouble and dam-age. Should the computer or controller crash, then the toggle signal on this output will stop as well. The circuit then, does little more than check whether this toggling (TTL-) signal is still present. The...

Powered by two AA NI-CD batteries Four switchable options Circuit diagram Parts: R1 220K 1/4W Resistor R2 470R 1/2W Resistor R3 390R 1/4W Resistor R4 1K5 1/4W Resistor R5 1R 1/4W Resistor R6 10K 1/4W Resistor R7 330K 1/4W Resistor R8 470R 1/4W Resistor R9 100R 1/4W Resistor C1 330nF 400V Polyester Capacitor C2 10µF 63V Electrolytic Capacitor C3 100nF 63V Polyester Capacitor C4 10nF 63V Polyester Capacitor D1-D5 1N4007 1000V 1A Diodes D6 LED Green (any shape) D7 1N4148 75V 150mA Diode Q1,Q3,Q4 BC547 45V 100mA NPN Transistors Q2,Q5 BC327 45V 800mA PNP Transistors SW1,SW2 SPST Switches SW3 SPDT Switch LP1 2.2V or 2.5V 250-300mA Torch Lamp SPKR 8 Ohm Loudspeaker B1 2.5V Battery (two AA NI-CD rechargeable cells wired in series) PL1 Male Mains plug Device purpose: This circuit is permanently plugged into a mains socket and NI-CD batteries are trickle-charged. When a power outage occurs, the lamp automatically illuminates. Instead of illuminating a lamp, an alarm sounder can be chosen. When p...