This circuit, which only works with incandescent lamps, was obtained in an American documentation from 1977. With it we can decrease the brightness of one lamp while the brightness of the other increases. Control can be done with a PWM signal applied to the input. The maximum power of the lamps depends on the SCR being around 200 W for those of the TIC series and the circuit also works on 220 V.
| Clique na imagem para ampliar |
