Circuit Project Electronic

This is a simple to build charger for single 3.7V lipo battery. The heart of the charger is TL431 shunt regulator that controls the incoming current. Charger comes with a convenient charging LED indicator. As charging current goes down so does the intensity of the LED.
Related Links
More Battery Charger Circuit
More Circuit about Li-Ion Battery [...]

Here is how you make a superregenerative circuit. Choose a regenerative amplifier circuit configuration that requires more current during oscillations than when not oscillating. Adjust the regenerative amplifier to oscillate. Add a small circuit that uses the current of the amplifier to charge a capacitor while oscillations are taking place. Once the capacitor is charged, [...]

Click to View Circuit and Read More
Related Links
More circuit about Shunt Regulator
More circuit about Power supply
More circuit by IC TL431
More circuit about DC Voltage Regulator