| ??? 08/25/10 01:19 Read: times |
#178300 - Drop of photodiode? Responding to: ???'s previous message |
M said:
D1 is to simulate drop on the photodiode. Hhm, usually there's another reason for this diode: To be able to reliably turn-off the LED of opto when being driven by an OPamp that is not Rail-to-Rail capable at the output. Kai Klaas |
| Topic | Author | Date |
| Wrong concept yields wrong simulation? | 01/01/70 00:00 | |
| GIGO indeed | 01/01/70 00:00 | |
| COntrol loop | 01/01/70 00:00 | |
| Simulation circuit | 01/01/70 00:00 | |
| Bias needed | 01/01/70 00:00 | |
| OP07... | 01/01/70 00:00 | |
| It's a correct feedback loop | 01/01/70 00:00 | |
| Biasing and dual supply for opamp | 01/01/70 00:00 | |
| Find out Why.. | 01/01/70 00:00 | |
| Not required | 01/01/70 00:00 | |
Drop of photodiode? | 01/01/70 00:00 | |
| You don't need the additional parts | 01/01/70 00:00 |