File:Battery-powered preamp - power management (as built).jpg

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English: Power management in a battery-powered, arduino-controlled preamp. There are three 3S 18650-type lithium batteries (11.1 to 12.6 V in each stack) - one for the controller and relays (3S2P), one for -12V audio rail (3S1P), one for +12V audio rail (3S1P). Each pack is wired through its own battery management (BMS) board which is tucked between the battery cradles and the PCB. See the circuit file for description
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Author Retired electrician
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Schematic (the middle section with MOS relay, switch and 7805 is on another board)

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I, the copyright holder of this work, hereby publish it under the following license:
Creative Commons CC-Zero This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.

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current10:59, 2 March 2021Thumbnail for version as of 10:59, 2 March 20213,000 × 1,500 (1.52 MB)Retired electrician (talk | contribs){{Information |Description={{en|1=Power management in a battery-powered, arduino-controlled preamp. There are three 3S 18650-type lithium batteries (11.1 to 12.6 V in each stack) - one for the controller and relays (3S2P), one for -12V audio rail (3S1P), one for +12V audio rail (3S1P). Each pack is wired through its own battery management (BMS) board which is tucked between the battery cradles and the PCB. See the circuit file for description }} |Source={{own}} |Date=2021-03-01 |Author= [[Use...

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