Charger for Portable Devices
This is a simple charger you can build for devices. It can be modified for any device. This may need no modification for devices that are charged using PC USB port.
Tagged: Schoodles
Mains Powered China Emergency Bulb
A typical Mains Powered China Lamp. On power down, LED light turns on for around 1/2 hr. Gets damaged on lightning activity and wide (uS not nS) transients above 300V. Drawing may have error.
Torch or Flashlight Circuit Improvements
I fixed a China Torch with New LEDs and a Diode, it failed probably on a drop shock, the battery wire cut … then when put on charge Few LEDs went bad, as battery...
Mains Adapter 230V AC 50 Hz to Rectified DC
Mains Adapter Converts 230V AC 50 Hz to Rectified DC which replaces a Battery Pack. It was also called Battery Eliminator by older generations as it was used to save Battery Cost in AM...
