connect the base of the transistor to a variable resistor and to a normal resistor
connect the base of the transistor to a variable resistor and to a normal resistor
The 2N5777 is a Darlington silicon NPN photo detector, or, if you prefer a photoDarlington. A link is provided to a bit of data on this device.
Why do you consider it neccessary to bias transistor?
1st pin is emitter then collector and base
Photo transistor always work with solar power
Photo transistor always work with solar power
Eric Wolfendale has written: 'Transistor bias tables (germanium)' 'Transistor bias tables'
A silicon transistor needs about 0.65 v of forward bias on the base to begin to conduct.
Reverse bias
we do bias field effect transistor because FET works if its Q point lies into active reason .If we bias FET ,the Q point lies in active reason
temperature
The emitter bias circuit is called self-bias because the bias voltage across the emitter-resistor is based on the transistor's own characteristics. The bias voltage adjusts itself based on the varying collector current to stabilize the operating point of the transistor. It is a self-adjusting mechanism that helps maintain a stable bias point for the transistor.