Building an LDR Comparator Circuit using IC LM339 is useful and important in many electronic jobs like sensing and control. Using LDR, resistors, LED and LM339 IC we can make a simple circuit to check light level and show light change. LDR works like light sensor and its resistance changes when light changes. Using preset […]
Battery Charger Circuit using IC TP5000
This Battery Charger Circuit using IC TP5000 charges lithium and LiFePO4 battery. It uses TP5000 IC and this IC work as buck converter and gives fast charge with no over heat. Circuit is small, simple and safe for battery. Circuit Working: Parts List: Component Value Quantity Resistors 1k 1/4 watt 1 0Ω 1/4 watt 1 […]
Designing a High Current, Low Voltage Regulator Circuit with the MIC29302WT
Modern electronics need good power control especially for high current and low voltage use. MIC29302WT is strong LDO regulator and it gives high current with small voltage drop. It is good for battery devices, car electronics and microcontroller power. It gives up to 3A current, so it can handle heavy circuits. Output voltage is from […]
Build Our Own Solder Fume Extractor Circuit
Soldering make bad smoke which is not good for health. So every work table need good smoke remover. To Build Our Own Solder Fume Extractor Circuit uses few easy parts to remove bad smoke. It uses BC547 transistor, small DC fan, preset resistor, capacitor and NTC thermistor to make air clean and safe. NTC thermistor […]
Simple Arduino Based Electromagnetic Field Detector Circuit
EMFs (electromagnetic fields) are invisible energy from electricity and lights which are natural and man made. Some EMFs are safe and some are bad if used too much for long time. We can use simple Arduino tool to find EMFs around us. Moving electric charge make EMFs. EMFs have two parts: electric field and magnetic […]
3 Ways to Build a 12V to 5V Converter Circuit using IC LM7805
Stable 5V power needed for many electronics like sensors, microcontrollers and digital parts. LM7805 voltage regulator IC is used in 12V to 5V converter which is very useful. This circuit takes 230V AC and gives 5V DC and keeps device working good and stable. Main parts of the circuit are transformer, bridge rectifier, filter capacitors, […]