12v Battery Charger circuit with Overcharge Protection This 12-battery charger circuit provides an Automatic cut-off facility when the battery gets fully charged. Before the use of this circuit, you need to adjust the Cut off-voltage range for the auto cut. This adjustment is done by the moving 10k preset and for testing of output voltage […]
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Transistor And Diode identification guide Each Semiconductor devices have a special numbering coding as per the specification of those components. All Components have a particular symbolic numbering with Alphanumeric coding for represents the characteristics of the material and other parameters. There is an international numbering system for all semiconductor devices and components. Transistor Coding System
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Small Electronic Projects for Beginners circuit diagram Simple electronic circuit There are some small, simple and effective electronic projects for beginners. These electronic projects are very easy to make and can easily construct by any beginner who have basic knowledge of electronics. Schematic diagram simple electrical circuit diagram Low battery indicator circuit diagram
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2000W Inverter circuit diagram This is the circuit diagram of a 2000w high-power inverter circuit. This is based on the mosfet3205. use 24v DC supply for operation and connect 24v 5A or more than 5A transformer. Please be careful with this circuit because of the high A voltage. Click on the image for the best
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LOGIC GATES Logic gates are the basic building elements of any digital system or circuit. The name Logic gate is derived from the sense of the making decisions ability of such a device, and after making decisions it produces one output result. We can say that Logic gates are the fundamental building blocks of any
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Remote controlled AC Load With Arduino Without Relay Arduino remote control Here I am presenting a mini project of remote control switch for any AC appliance without Relay. A homemade Arduino Remote control switch is an interesting idea. Arduino Uno board is used here but you can use any Arduino board. Download Arduino Library Proteus
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Digital thermometer design and development using Arduino UNO and LM35 temperature sensor Arduino LM35 Temperature Sensor with LCD display Thermometers enable us to read the temperature in any room, space or region. Thermometers are widely used in industries for temperature monitoring during the manufacturing process. Similarly, thermometers are of vital importance at hospitals, especially in
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Distance measuring instrument design and development using Arduino UNO and Ultrasonic Sensor SR04 Distance measurement using ultrasonic sensor Ultrasonic Sensor interfacing with Arduino Ultrasonic sensors not only offer distance measuring utility without any physical contact but enable us to measure with no noise and light, unlike laser-based distance measuring instruments. Furthermore, these instruments are cheap
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https://www.facebook.com/1828100427483348/videos/461946714311895/ How to program Arduino ir sensor code Nowadays Infrared (IR) remote is widely used as wireless communication to control any appliances. There are many advantages of wireless technology. TV/video remote controls, motion sensors, remote control toys, music player and infrared thermometers are a very prominent example of wireless communication using a remote control. In
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LED chaser using Arduino This LED Multi Pattern of Blinking effect is done by using the arduino UNO. This led chaser circuit connection is very very easy and simple because of arduino board is used. The effect is very beautiful with multi style of patterns. Here only 10 LEDs are used but you can connect
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High voltage Autocut Circuit For Stabilizer Auto cut voltage stabilizer circuit diagram Here i am presenting a circuit of auto cut that is used mostly in manual voltage stabilizers. This is a protection circuit that protects electrical appliances from high voltage. This circuit is connected to the output of the stabilizer. When the voltage increase
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2 Χ 100 watt Stereo Audio Amplifier using STK4231 II If you want to make a HI FI 100w High Power Stereo Audio Amplifier Then You can use this ic. STK4231 is a hybrid Thick film IC manufactured by SANYO ELECTRIC CO. LTD JAPAN. The STK4221II IC from is a dual high power amplifier chip, preferably
STK4231 II 100w + 100w Stereo Audio Amplifier Circuit Read More »
Dark/Light Activated Circuit using LDR The dark sensor circuit is very useful to Automatic Switch ON and OFF any appliance by Detection of Light and Dark. LDR is a photoresistor that is used for the detection of light. When Light intensity high on LDR, The Resistance through it Decrease and When Light intensity is Low
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3 LED flasher circuit using transistor Here is another type of LED flasher circuit but this circuit is also about the same as my previous led chaser, here is some change in this circuit. This is a Very Easy and beautiful LED chaser that is made using without any ic. only transistors, capacitors and resistors
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12v CFL Inverter circuit for Emergency Light This is a small power inverter circuit that produces 230v ac at the output through the transformer. The circuit is designed by T.Kalpana. This can be used as the emergency CFL lighting, CFL needs AC input for operating and this circuit provides the AC to CFL. This circuit
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12v battery charge level indicator circuit led bar graph The LM3914 is a monolithic integrated circuit that senses analog voltage levels and drives 10 LEDs, providing a linear analog display. This ic is used for Dot and Bar Display. A single pin changes the display from a moving dot to a bar graph. The current
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Power bank For Mobile/Smartphone What is a Power bank When we go away from home then I face a very common problem, that is power backup of mobile phones. During travelling, it is a very common problem to get regular power backup. If you’re traveling or out you won’t have a chance to recharge your device,
Homemade Powerbank using Li-ion 3.7v Battery Read More »
Over-voltage Protection circuit using TL431 Shunt Regulator IC This circuit protects from high voltage. Automatic Equipment disconnect when the power cross the level of a fixed voltage. This is a safety device to overvoltage. What is TL431 The TL431 is a three-terminal adjustable precision shunt regulator integrated circuit (IC). It is commonly used in electronic
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Solid State Relay/ Optocoupler Relay Solid State Relay is a type of switch to activate Load by using without any Mechanical parts. In this there is only semiconductor devices used, no Mechanical coil relay is used to Switching the Connected Load. Triac is used at the place of coil relay to switch ON and OFF.
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Delay Timer For Switch ON Supply To Any Appliance For Protection Circuit 1 power on delay timer circuit The delay timer is a device that is used to take some duration be]fore switch on the main input supply to any equipment. This is a protection circuit to protect any electrical or electronic equipment and appliance
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Dual power supply circuit Some circuits required dual power for a better operation like a power amplifier, audio amplifier, or another power circuit. That circuits made for operating with dual supply input voltage. Dual supply means- One terminal gives +ve. One terminal gives -ve and one is for ground. Two terminals give +ve and -ve
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Electret Condenser Microphone Amplifier Circuit This is Another a circuit diagram of homemade MIC Speaker Amplifier using LM386. This is small and powerful for a low power supply. This is the Best and interesting circuit for the beginner. In this circuit, a transistor is used as a preamplifier which makes input signal noiseless and gives
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