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LGKT003: High-Intensity, Energy-efficient LED Light
This kit there is power available, the LED matrix will glow with the help of it and sideways the battery will also get charged which is of 12v but when the power will get off the LED matrix will be still turn ON but the power source will be battery which will be charge previously.

 1 Days
 Beginner
 519

LGKT013: Short-Circuit Protection
The main circuit is protected from any damage due to short-circuit in the additional power supply circuit by cutting off the derived supply voltage. The derived supply voltage restores automatically when shorting is removed.

 1 Days
 Intermediate
 239

LGKT028: Flasher For Dipawali using BT136
The objective of the kit Flasher for Deepawali is to design a circuit for a portable electric lamp-cum-LED flasher. It uses a 25W, 230V AC bulb and nine LEDs. When the bulb glows all the LEDs remain 'off, 'and when the LEDs glow the bulb remains 'off.'. In this kit Flasher for Deepawali .

 1 Days
 Advanced
 509

LGKT038: DC Motor Speed Controller
The aim of this kit to control speed of a small 12 volt DC motor. They is simple circuit because used a little piece of component. By has a Nand gate Digital cmos IC number CD4011 is main of circuit.

 1 Days
 Intermediate
 839

LGKT043: Positive to Negative Voltage Converter
The advantage of the kit Positive to Negative Voltage Converter is that, the negative voltage together with the original positive supply can be used to simulate a dual supply.

 1 Days
 Beginner
 249

LGKT049: Simple Water Level Indicator
The kit Simple Water Level Indicator Using Transistor is very easy to build four led for indication of levels in sequence and a buzzer is used to indicate over flow condition, for using the circuits attach the six wires or probes in the water tank at your desired level.

 1 Days
 Beginner
 279

LGKT051: Voltage Doubler
Most of this project is circuit used for doubling the voltage uses the principle of charging and discharging the capacitor. The voltage doubler circuit described below is used to double the input DC power by using IC 555 timer with capacitors and diodes.

 1 Days
 Beginner
 289

LGKT055: Over/Under Voltage Protection
The Objective of the kit Over/Under Voltage Protection is to design a system to protect the system from the over voltage and under voltage condition. As the voltage increases the supply is cut off. In this there is also provision for under voltage protection.

 1 Days
 Advanced
 659

LGKT057: Blown Fuse Indicator
In the kit Blown Fuse Indicator Fuse is a common device that is used in every electrical or electronics equipments or devices. Fuse is a protective element of every device which protects the electrical equipments against high voltage

 1 Days
 Expert
 509

LGKT091: DC Stabilized With Short Circuit Indication
In the kit Stabilized Power Supply with Short Circuit Indication here is an efficient 4-stage stabilized power supply unit for testing electronic circuits. It provides well regulated and stabilized output, which is essential for most electronic circuits to give proper results.

 1 Days
 Intermediate
 609

LGKT056: AC Volatge level display
In this kit his simple test gadget gives visual indication of AC mains voltage from 160 volts to 270 volts in steps of 10 volts. There are twelve LEDs numbered LED1 to LED12 to indicate the voltage level.

 1 Days
 Intermediate
 589

LGKT070: Self switching power supply
The main concept of this project is to design a circuit which is used to turn off the power supply automatically when no current is drawn by the load. The current drawn by the load can be varied by using the potentiometer setting. The proposed system uses a rectifier and other electronic devices. Based on the condition of the load, the power supply is controlled by the relay and transistor arrangement in the circuit.

 1 Days
 Expert
 589

LGKT084: USB-Powered PC Lamp
This white LED lamp lets you use your PC or laptop at night without disturbing others’ sleep. It produces a soft white light just enough to see the keyboard in darkness as well as when the ambient light is poor during daytime. The circuit is powered by regulated 5V DC available from the USB socket of the PC.

 1 Days
 Intermediate
 199

LGKT097: Flashing Beacon
Here we present a flashing beacon that uses well-known regulator IC LM317T. As LM317T regulator can deliver more than 1 amp. A small 12V, 10W bulb with a high-quality reflector can serve as a good visible blinker.

 1 Days
 Expert
 459

LGKT103: AC Power Supply fail alarm
Here is a simple mains power failure alarm/detector circuit that produces an alarm whenever the mains supply fails. Lot of such circuits are available, but the peculiarity of this circuit is that it requires no backup power source like a battery to power the alarm when the mains is absent.

 1 Days
 Expert
 519

LGKT104: DC Over Voltage Trip
This voltage protection circuit is designed to develop a high-voltage tripping mechanism to protect a load from any damage. In many of the homes and industries fluctuations in DC supply take place frequently.

 1 Days
 Expert
 249