This beneficial solar Ni-Cd circuit functions to prevent overcharging of batteries compared to conventional charger circuits which are ordinarily built by employing only one Schottky diode and a solar panel. […]
Zero Crossing 220V AC Light Dimmer Circuit using IC 555
The post explains a high efficiency and versatile IC 555 based light dimmer circuit which works by phase control through zero crossing, thus eliminating noise and other issues associated with […]
Battery Saver Circuit
Commonly found in simple devices like an IR remote control unit and calculators, the battery protection circuit serves to limit the over-exhaustion of battery power in the event you forgot […]
Prevent Battery Self-Discharge using this Circuit
The simple circuit presented in this article safeguards a lead acid battery from self-discharging, especially when the battery is not being used or charged for long periods of time. The […]
How to Make a Simple Musical Greeting Card
It is fairly simple to construct a ‘singing’ melodious greeting card, as explained in the following article. You can replicate this greeting card design through matching chips which carry about […]
Switch ON/OFF any Appliance Remotely using Mains Wiring
Using the explained transmitter and receiver circuits, you can quickly exploit the existing mains home AC wiring to send signals across different rooms, for remotely switching ON/OFF any desired appliance […]