Hai everyone...im looking to modify the optocoupler that use NPN transistor like in below diagram.
My aim is to modify above circuit to become optocoupler that same funtion as optocoupler that use phototransistor. My question here is
- if the base of NPN transistor in not to connect to any compenent(opened based), are there same function like photoransistor?
- if yes, i want to build the above circuit ( at part NPN transistor) to become darlintong circuit without use the base pin at pin 6. Then what suitable transistor that i should choose?i will use 12 V DC supply voltage to darlington circuit.
TQ..
My aim is to modify above circuit to become optocoupler that same funtion as optocoupler that use phototransistor. My question here is
- if the base of NPN transistor in not to connect to any compenent(opened based), are there same function like photoransistor?
- if yes, i want to build the above circuit ( at part NPN transistor) to become darlintong circuit without use the base pin at pin 6. Then what suitable transistor that i should choose?i will use 12 V DC supply voltage to darlington circuit.
TQ..
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