- #1
zak8000
- 74
- 0
hi there
i just have a question about diodes say for example we have the following cct:
the circuit with the diodes with the 5V supply, one of the diodes is on and the other off and i understand why this happens but when dealing with the circuit the opamp and the diode i am confused. the output voltage of the diode and opamp cct is 5volts and this is because the postive terminal of the opamp is at a higher potential than the negative terminal and as a result the output of the opamp heads toward its positive rail which is 5 volts but then i assume that the diode would not conduct as the cathode is more positive than the anode and so the output voltage should be zero volts but the simulation says its 5 volts. so could someone please help me with this confusion and also if the output is 5 volts then what is the point of putting that diode in the cct when it doesn't change the voltage coming from the output of the opamp to the output of the cct?
i just have a question about diodes say for example we have the following cct:
the circuit with the diodes with the 5V supply, one of the diodes is on and the other off and i understand why this happens but when dealing with the circuit the opamp and the diode i am confused. the output voltage of the diode and opamp cct is 5volts and this is because the postive terminal of the opamp is at a higher potential than the negative terminal and as a result the output of the opamp heads toward its positive rail which is 5 volts but then i assume that the diode would not conduct as the cathode is more positive than the anode and so the output voltage should be zero volts but the simulation says its 5 volts. so could someone please help me with this confusion and also if the output is 5 volts then what is the point of putting that diode in the cct when it doesn't change the voltage coming from the output of the opamp to the output of the cct?