Phototransistor
Schematic symbol
Transistor switched by light instead of base current: more light lets more current flow from collector to emitter. Connect the collector through a resistor to the positive supply and the emitter to ground, then read the collector voltage, which drops as light increases. Common in IR sensors and line followers. Learn more about phototransistors
light
sensor
Details
- Reference Character
- Q
- Default Value
- —
- Author
- Circuit Canvas
- License
- Circuit Canvas Parts License
- Library
- Circuit Canvas Library
