Inverters are electrical circuits that convert a DC supply voltage from solar panels or batteries into mains AC supply voltage upto 220 V or 120V and frequencies of 50 Hz […]
Simple Solar Ni-Cd Charger Circuit
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 […]