This DC to DC Adjustable Converter Circuit using IC TL497A works like small helper which can change voltage from power source. It takes low voltage and gives high voltage back like a small power adapter. Good thing is, this circuit can be changed to work in different way and it depends what voltage we want. […]
3V to 24V Variable Power Supply Circuit
3V to 24V Variable Power Supply Circuit is like a Swiss knife. One supply does many things. Turn knob to change voltage from 3V to 24V. Circuit is good for projects needing different voltage. There is no need of many adapters just use this one. Circuit Working: Parts List: Category Component Quantity Resistors 3k 1/4 […]
1.2V NiMH Cell LED Flashlight Circuit
This small and 1.2V NiMH Cell LED Flashlight Circuit works like supercharger inside flashlight. Normal flashlight with NiMH battery does not use full power from battery. But this circuit have special booster which takes low 1.2 volt and make it higher like 3.3 volt so LED can glow more bright. So we can use full […]
Simple Pulse Position Modulation Circuit using IC 555
This Simple Pulse Position Modulation Circuit using IC 555 uses one special chip with number 555. It works like messenger for your electronic things. It send info by making small burst like electric pulse. Not like Morse code with dot and dash but this one uses timing change of pulse to talk. Pulse strength and […]
Simple 3V to 9V DC Boost Converter Circuit
This Simple 3V to 9V DC Boost Converter Circuit is like a hero for battery. If battery is only 3V like from old remote then this circuit makes it strong by giving it 9V as many device need 9V to work good. So if we only have small battery with low power but still want […]
Simple Cell Phone Charger Circuit using 1.5V Battery
This Simple Cell Phone Charger Circuit using 1.5V Battery is one special charger we can take anywhere but there is no need to plug. We can charge phone anytime. It uses normal AA or AAA battery same like in TV remote. Inside, it have part which make weak battery power strong so phone can be […]