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| Where to put a power-on LED |
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| Hextejas:
In this schematic. I want to have some indication that the beast is on. Thanks |
| hayatepilot:
Will the two rails be connected in series to have a symmetric voltages for a power amplifier? i.e. V+, GND, V-? Then I would put the LED across V+ and V- so each rail is equally loaded. And in this case you could also save one Bridge rectifier. Otherwise just put it across one of the rails. Judging from the grunty components you will probably not notice the tiny additional load on one rail. Greetings |
| ArthurDent:
Because you have two separate identical power supplies that can output several amps of current, I would put a resistor/LED across each output. Where the two outputs are separate you will need two indicators to show that each of the two supplies is working. |
| t1d:
--- Quote from: ArthurDent on December 05, 2018, 06:02:35 pm ---Because you have two separate identical power supplies that can output several amps of current, I would put a resistor/LED across each output. Where the two outputs are separate you will need two indicators to show that each of the two supplies is working. --- End quote --- If panel space is tight, maybe you could use a two-color LED? That would show 4 states... - Off/Both Failed - Only one color, one side operational - Only the other color, the other side operational - The two colors making an averaged color, both sides operational. |
| ArthurDent:
The problem with using one LED for 4 states is it's easy to forget which color means what. LEDs are small and cheap, use 2. |
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