In this post you will find circuit on how we can light up white LED on 1.5 v supply. Heart of the circuit is the transformer winded on 2.5mm by 0.5 mm core using 0.095 mm wire.
2 White LED on 1.5 v Supply
The circuit below uses only 1.5v to light up 2 white LED.
Components required:
- T1 – BC338
- R1 – 2.7 K
- C1 – 10 n
- D1,D2 – Super bright LED
- Transformer – 60 T, 40 T
- S1 – On/off Switch
- Battery 1.5 V
White LED Flasher
Below circuit uses only 1.5v to flash a white LED.
Components required
- T1 – BC338
- T2 – 2N2222
- R1 – 2.7 K
- R2 – 47 R
- R3 – 330 R – 1K
- C1 – 10 n
- C2 – 100
- D2 – 1N4148
- Battery 1.5 v
For more post on LED click here.