- #1
RShan
- 11
- 0
Hi folks,
I would like to clarify few doubts on my mini-project as mentioned below:
I am designing a small kit using a transistor (2N3904) and an OP-AMP (LM741- Voltage follower) with few resistors connected to them. My power supply voltage value is 5V. Please refer to the below picture for your understanding. Am stuck in a situation where, I need the following logic as output but it is not the case.
I believe the above circuit will provide you a clear idea about my query. Hoping for a favorable reply from you folks.
Regards,
Shan
I would like to clarify few doubts on my mini-project as mentioned below:
I am designing a small kit using a transistor (2N3904) and an OP-AMP (LM741- Voltage follower) with few resistors connected to them. My power supply voltage value is 5V. Please refer to the below picture for your understanding. Am stuck in a situation where, I need the following logic as output but it is not the case.
- When the circuit is OPEN, # The voltage at inverting input is half of the supply voltage (i.e., +Vcc / 2) # The voltage at non- inverting input is Zero # The output of the OP-AMP is either low or negative (i.e., LED 2 – status ON)
- When the circuit is SHORT, # The voltage at inverting input is Zero # The voltage at non- inverting input is half of the supply voltage # The output of the OP-AMP is high (i.e., LED 1 – status ON)
I believe the above circuit will provide you a clear idea about my query. Hoping for a favorable reply from you folks.
Regards,
Shan