The following diagram is a simple mobile phone battery charger circuit. The design is simple, easy to build and inexpensive.…
Here the circuit diagram of simple and easy made battery level indicator. In general, in mobile phones, the battery levels…
This is the 'special' circuit design of power supply failure alarm. The vast majority of the power supply failure alarm…
This is definitely an effective 4-output stage stabilized DC power supply unit for testing electronic circuits. It delivers very well…
Automatic Switching-on Emergency Light The schematic diagram shown right here is the automatic switching-on emergency light circuit which is controlled…
Here the project report of DC/AC pure sine wave inverter. This report focuses on DC to AC electrical power inverters,…
Here is the schematic design of car cigar lighter to USB power port. Nowadays, almost all computer systems have logic…
Here the simple Mini UPS circuit diagram. This circuit can provide an uninterrupted power supply (UPS) to operate 12V, 9V…
This is the schematic diagram of solar powered mobile phone battery charger. The circuit is designed to charge the battery…
This is the circuit diagram of 5V Regulated Power Supply circuit, featured with over voltage protection. The circuit is based…