Lamp Fader schematic

The sunset lamp comes on at full brightness and then slowly fades out over 1.5 hours time and stays off until power is recycled. More: You can use 12 Volt 25 Watt lamps.

The described sunset lamp operates on a 12 Volt power supply, utilizing a 25 Watt incandescent or LED lamp. The circuit is designed to provide an automatic dimming feature, simulating a natural sunset effect.

The core of the circuit likely includes a microcontroller or a timer circuit that manages the brightness of the lamp. Upon activation, the circuit powers the lamp at full brightness. The dimming process can be achieved through pulse-width modulation (PWM) or by using a variable resistor in conjunction with a transistor to gradually decrease the current flowing to the lamp over a period of 1.5 hours.

To implement this, a relay or a MOSFET may be utilized to control the power to the lamp, allowing for smooth transitions in brightness. The microcontroller can be programmed to decrease the duty cycle of the PWM signal or adjust the resistance in the circuit gradually over the specified time frame.

After the sunset effect is completed, the lamp remains off until the power is recycled, which can be managed through a simple switch or a timer that resets the microcontroller. The entire circuit should be designed with appropriate heat dissipation methods, especially if using incandescent lamps, to ensure safety and longevity of the components.

Additionally, capacitors may be included in the circuit to smooth out any voltage fluctuations and ensure stable operation, while resistors can be used to limit current and protect sensitive components. Overall, this design provides a simple yet effective way to create a relaxing ambiance by mimicking the natural fading of sunset light.The sunset lamp comes on at full brightness and then slowly fades out over 1.5 hours time and stays off until power is recycled. You can use 12 Volt 25 Watt lamps. 🔗 External reference