BeePre 2 Voltage Check Terminal 1 and 11

Jimb0 · 862

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Offline Jimb0

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on: February 03, 2025, 03:34:44 PM
Hello. I just built a BeePre2 with output and TwoQuiet upgrade. All voltages checked out except for terminals 1 and 11. I'm getting a reading of 220V on each terminal.
« Last Edit: February 03, 2025, 04:22:26 PM by Jimb0 »



Offline Jimb0

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Reply #1 on: February 03, 2025, 04:10:41 PM
pics



Offline Paul Birkeland

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Reply #2 on: February 03, 2025, 05:53:50 PM
I'm getting a reading of 220V on each terminal.
What was the expected value?

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


Offline Jimb0

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Reply #3 on: February 04, 2025, 04:54:36 AM
I think I figured it out. I was looking at the TwoQuiet manual when I tested the voltages for Terminals 1 and 11. This was after I added the 5w 22ohm and 270ohm wirewound resistors between 31-39. By adding these resistors in parallel with the existing resistors, this should increase the voltage because the voltage drop will be less on those resistors. Am I correct?

My other question what does the B+ Raw mean in the output manual upgrade?

« Last Edit: February 04, 2025, 05:11:33 AM by Jimb0 »



Offline Paul Birkeland

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Reply #4 on: February 04, 2025, 06:10:24 AM
Yes, the added resistors in the power supply bump up the raw B+ a bit so it will work better with the hybrid shunt regulator circuit.  B+ raw just means the B+ before regulation.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


Offline Jimb0

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Reply #5 on: February 04, 2025, 07:22:00 AM
Thank you PB!