| ??? 04/26/06 14:35 Read: times |
#115064 - Circuit Analysis |
Dear all,
I would like to clear few things with the circuit i have. http://www.8052.com/users/Sur...design.pdf I am not clear with the DAC(AD7548) connected to the OPA 547 through a LF412. This setup is used for driving a coil for Reed Switch closure. I found that the DAC being the current o/p one, delivers .2777A when the input data are all logic 'high'. So, the voltage at the output of LM412(U4A)pin 1 = Vo = .2777 * 33 = 9.1641 V. If what i described above is correct then, here, iam not sure of what is the current that would be sourced by LM412U4A pin 1. Also, in the OPA547 part iam not sure of what is the o/p voltage(at coil+, coil-) i would get with such a setup and having the current limit being set. I would like to have some discussions on it. Thanking you, Suresh. |
| Topic | Author | Date |
| Circuit Analysis | 01/01/70 00:00 | |
| it might be easier to help if we knew | 01/01/70 00:00 | |
| Reply | 01/01/70 00:00 | |
| last time | 01/01/70 00:00 | |
| I second that | 01/01/70 00:00 | |
| Erik, This is not the only work iam carr | 01/01/70 00:00 | |
| comments | 01/01/70 00:00 | |
| It amazes me | 01/01/70 00:00 | |
| old soldiers never die | 01/01/70 00:00 | |
| Sorry, mine has an electron gun! | 01/01/70 00:00 | |
| son of a(n electronic) gun | 01/01/70 00:00 | |
| Exactly. Its what iam trying ... | 01/01/70 00:00 | |
| HUH? | 01/01/70 00:00 | |
| LM412 source current for a particular .. | 01/01/70 00:00 | |
| Zilch | 01/01/70 00:00 | |
| The basics..... | 01/01/70 00:00 | |
| Reply to :comments | 01/01/70 00:00 | |
| Reverse engeering?? | 01/01/70 00:00 | |
| Let me give all the informations i have | 01/01/70 00:00 | |
| Well, I wasted my time then! | 01/01/70 00:00 | |
| Faulty design? | 01/01/70 00:00 | |
| Thanks and few more.... | 01/01/70 00:00 | |
| Please! | 01/01/70 00:00 | |
| reply | 01/01/70 00:00 | |
| When "inheriting" a complex design, you | 01/01/70 00:00 | |
and sometimes ... | 01/01/70 00:00 |