- #1
spikey1973
- 8
- 0
hey guys,
to be hounoust I'm kinda ashamed to be asking this, but a simple thing is turning out far less simple then anticipated and i don't seem to be able to find the solving clue.
i am in the situation that i want to switch on and off two mainboards (one pc mainboard and one soft-switch board for an hypex amplifier) with one momentairy switch.
normal situation, both board have a separate switch, upon short suppresion the board will turn on, and a second or long suppresion will turn it off.
as i would like to have both pieces of equipment to be turned on simultaneously, i intended to connect both to the momentairy switch in parrallel manner. in principle this seems to be very simple, but.. it turned out not to that case. when i added power to the soft-switch and mainboard the following situation occured:
1) the soft-switch board for the amp turned on.. and didn't turn off either, not even after 5 sec (usually it should turn off when in a normal situation a momentairy switch would be suppressed for more then 5 secs.
2) the pc mainboard didn't turn on at all.
to me the odd thing here is that neither the mainboard nor the soft-switch board give polarity on the connectors to which the switch is connected. Normally i'd expect that there would be a small current being 'shorted' upon suppressing the switch, but this would mean polarity ofcourse. If this would be true and i would mix them up one board would turn on the other board and visa-versa.
but as said, only one board turned on and the other didn't.
so basically my main / first question is: how does this switchery stuff actually work if it is not polar..
and if it is polar... what would could have been the 'cause for the odd behavior described above
and where do i go wrong with the above thought train and second (but i might be able to figure that out myself after i find the correct answer on the first question).
kind regards
Matthieu
to be hounoust I'm kinda ashamed to be asking this, but a simple thing is turning out far less simple then anticipated and i don't seem to be able to find the solving clue.
i am in the situation that i want to switch on and off two mainboards (one pc mainboard and one soft-switch board for an hypex amplifier) with one momentairy switch.
normal situation, both board have a separate switch, upon short suppresion the board will turn on, and a second or long suppresion will turn it off.
as i would like to have both pieces of equipment to be turned on simultaneously, i intended to connect both to the momentairy switch in parrallel manner. in principle this seems to be very simple, but.. it turned out not to that case. when i added power to the soft-switch and mainboard the following situation occured:
1) the soft-switch board for the amp turned on.. and didn't turn off either, not even after 5 sec (usually it should turn off when in a normal situation a momentairy switch would be suppressed for more then 5 secs.
2) the pc mainboard didn't turn on at all.
to me the odd thing here is that neither the mainboard nor the soft-switch board give polarity on the connectors to which the switch is connected. Normally i'd expect that there would be a small current being 'shorted' upon suppressing the switch, but this would mean polarity ofcourse. If this would be true and i would mix them up one board would turn on the other board and visa-versa.
but as said, only one board turned on and the other didn't.
so basically my main / first question is: how does this switchery stuff actually work if it is not polar..
and if it is polar... what would could have been the 'cause for the odd behavior described above
and where do i go wrong with the above thought train and second (but i might be able to figure that out myself after i find the correct answer on the first question).
kind regards
Matthieu