This solar night lamp will illuminate an LED automatically during evening, and switch it off during dawn break, all automatically. The unit will also charge a in-built Li-ion cell safely. […]
High Current Motor Speed Controller Driver Circuit
This straightforward circuit is developed for controlling all forms of high current DC motors that is rated up to 40 A. Fundamentally, it’s just a standard oscillator triggering a handful […]
High Current Li-Ion Charger Circuit
Want to charge a high mAh rated Li-Ion battery with high current with an auto shut off facility at full charge level. The following simple circuit can be sued for […]
Audible Spirit Level Indicator Circuit
This audible electronic spirit level circuit is extremely valuable for folks with hearing or vision imperfections. Not only that, but it is also useful for people who wish to align […]
Phase Neutral AC Socket Outlet Tester Circuit
The most common phase testers show if an AC mains voltage is present at the wall output. They are typically known as the Live (L) connection. This useful AC mains […]
Simple Voltage Controlled Oscillator Circuit
The circuit as shown in Figure below presents a 555 as an extremely simple, voltage-controlled oscillator (VCO). The VCO’s output frequency (U1) differs contrariwise with the input voltage. Using a […]