Portable emergency LED lamp circuit with simple components and easy to make, here ten super flux white LEDs are used …
Here this circuit constructed with bridge rectifier and zener regulator. we can use this circuit as 12 volt power supply …
Now a days computers are uses USB ports to interface external peripherals. If we wish to connect a microcontroller with …
This circuit gives regulated DC power supply from USB port by using zener diode as a regulating component. USB port …
The USB power mobile charger circuit constructed by using zener diode (4.7V/400mW) and switching transistor SL100. before trying this circuit …
This simple desktop lamp circuit gives enough light during night time work without disturbing others. Here the circuit constructed with …
By using this circuit we can charge nickel – cadmium battery through USB port available in computer. Here the DC …
USB ports available in computer, laptop provides 5V DC supply through VCC and GND pin. If we need more than …
This circuit helps you to charge your mobile phone battery and also some rechargeable battery with solar energy, before trying …
What is Zener diode? A zener diode or Breakdown diode is a PN diode specially designed for operation in the …