TREX and TREX2 Transistor regulator kit

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fragletrollet
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Re: TREX and TREX2 Transistor regulator kit

Post by fragletrollet »

So if I get another 48V smps I can make bipolar 15-17V, but I need two TREX pcb's with one of the pcb's having its polarity reserved (so +48V into 0V, Vin to case ground) and exchanging regulator with tip126, and reversing all caps and zeners? Could it be done with a TREX2 alone (+2 smps)?

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Joe Malone
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Re: TREX and TREX2 Transistor regulator kit

Post by Joe Malone »

fragletrollet wrote:
Thu Nov 04, 2021 11:36 pm
So if I get another 48V smps I can make bipolar 15-17V, but I need two TREX pcb's with one of the pcb's having its polarity reserved (so +48V into 0V, Vin to case ground) and exchanging regulator with tip126, and reversing all caps and zeners? Could it be done with a TREX2 alone (+2 smps)?
You can build a reversed polarity TREX as you describe but it has to be a seperate TREX. TREX2 would have to normal or fully reversed. It cannot be half and half.

I do have a 48v rail splitter in the works which will make +/-24vdc and has 2 x regs for +/-12v to +/-18v. But it will probably not be ready until next year.
Joe :-)
JLM Audio
Capturing Audio without Injury

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