Timeline for What exactly is a current source?
Current License: CC BY-SA 3.0
8 events
| when toggle format | what | by | license | comment | |
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| Jun 9, 2022 at 14:36 | comment | added | johny why | "As long as the circuit does not require more than the maximum current, the supply will supply your chosen voltage." - What happens if the load requires more than the maximum current? Will the supply maintain the same V at the max current? | |
| Mar 23, 2012 at 14:25 | comment | added | Kevin Cathcart | The output of an alternator depends pretty heavilly on what is driving it. If the driving source is constant torque, then an alternator would indeed approximate a current source. If it were constant rotational velocity then it would resemble a voltage source. As I understand it, in practice the sources of most alternators are neither, providing constant power, with torque and rotational velocity varying depending on the load. | |
| Mar 23, 2012 at 13:15 | comment | added | D_Weight | How about an alternator? I think this is about as close to a current source as you can get without a circuit controlling a voltage or resistance | |
| Mar 23, 2012 at 10:51 | comment | added | Federico Russo | @GreenNoob - Sorry, no. I'm trying to remember the part number of a 100\$\mu\$A device which I saw in the past, it looked like a diode and had a part number like (*)100. | |
| Mar 23, 2012 at 7:21 | comment | added | Green Noob | @FedericoRusso Can you mention few single component current sources you know? | |
| Mar 22, 2012 at 18:29 | comment | added | Kevin Cathcart | To the best of my knowlegde there are none that don't require external compontents like a voltage source, and which are not logically compond components (like a battery+jfet combination). | |
| Mar 22, 2012 at 18:10 | comment | added | Federico Russo | There are single component current sources, too! | |
| Mar 22, 2012 at 18:06 | history | answered | Kevin Cathcart | CC BY-SA 3.0 |