Power Supply jumpers
i've got 115v power supply outputs 12vdc. unit pulled machine built in japan , it's possible custom built device. can't find identifying information power supply, documentation.
i plugged in , started testing output side see i'd get. there 4 terminal posts on dc output. terminals 2 , 3 jumpered -- making me think configuration is: t1 (+12v), t2 (gnd), t3 (gnd), t4 (+12v). when put multimeter on terminals 1 & 2 12v. when put on 3 & 4 -12v. obviously, reversing leads on multimeter makes +12v.
so question i've got is: why 3&4 jumpered together? think done if ground. +12v on multimeter if treat terminal post #3 positive, not ground.
i plugged in , started testing output side see i'd get. there 4 terminal posts on dc output. terminals 2 , 3 jumpered -- making me think configuration is: t1 (+12v), t2 (gnd), t3 (gnd), t4 (+12v). when put multimeter on terminals 1 & 2 12v. when put on 3 & 4 -12v. obviously, reversing leads on multimeter makes +12v.
so question i've got is: why 3&4 jumpered together? think done if ground. +12v on multimeter if treat terminal post #3 positive, not ground.
do 24v measuring 1 4?
this great analog supply, +/-12 op amps, adcs, dacs, preferred way power things, keep signal @ dc level vs running thru caps time.
this great analog supply, +/-12 op amps, adcs, dacs, preferred way power things, keep signal @ dc level vs running thru caps time.
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