- Functional Requirement
The bulb turns on when ambient light intensity is low, and turns off when intensity is high.
- Voltage Requirement
The circuit must meet the working voltage requirements of the IGBT and the lighting devices. A 10V power supply is sufficient for this equipment.
- Circuit Construction
Build the circuit as shown in the left top diagram. The right top diagram is the schematic diagram. (Note: Due to different lighting devices, this equipment uses 5W/1.2W bulbs as the light emitters.)
- Ambient Light Consideration
Due to the uncertainty of ambient light intensity, the bulb's on/off state may require manually covering or exposing the photoresistor to light for calibration.
