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nand
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Posts posted by nand
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last question.... -
if I Connect + with - the Cicuit ist shorted ? thx for all info now i will build 4 Supply...
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How i have to connect it ? how its right ? how i can get +-30V ?
This ? OR This?
_Supply1_ _Supply2_ _Supply1_ _Supply2_
| | | | | | | |
| | | | | | | |
| | | | | | | |
|_+____- __| | __+__-__ | |_+____- __| | __-__+__|
| |__________ | | | |____________| |
| | | | | |
| | | | | |
|_Voltage?___|_Voltage?_| |_Voltage?____|_Voltage___| -
+ +- - ??
or
+ - - + ?
thx ! -
i know ...
i will build 2 Supply
and than how i have to connect the Outputs to get +-30V ? -
how i have to connect the Outputs to get +-30V ?
do you have test it ? -
can I do an series connection with 2 Supply to get +-30V ?
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now i am confused:
i will build the supply
1. I have an 24V Transformer witht 8,33A
2. I have the PCB(done) with the old circuit
3. I have to change parts in the circuit
4. I would use the TL081, BD140 in the old circuit
5. I take two 4700 -
ok i hope i can find the MC34071 OPAMP
i will use max 30V@2A
how much Volt i can get with a 24V Transformer ?
i change the OPAMP to MC34071 if i can find it.
an change the 2n2219 to BD139 on a heatsink
I build 4 Supplys in a Box i can put all the BD139 on a Heatsink
will it work fine after changing Parts i hope the ripple is not to big
can i use the shematic on the main side ?
how shematic i have to use.. i have used this
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i have a 25V 8,33A Transformator
25*1,41 = 35,25V ???
Changes:
C1 = to 4700 -
Cann I use an C1 = 4700
0-30V Stabilized Power Supply
in Projects Q/A
Posted
hmmmm...
you think i`m arent allowed to connect the the 2 GND signals on the right side when i use the left side in series connection
right ?