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Isolated Battery | DiyMobileAudio.com Car Stereo Forum
https://www.diymobileaudio.com/threads/isolated-battery.92767/
6,393 Posts. #2 · Nov 22, 2010. You need to test the battery, it should be at least 12.5v at rest and hold 12v with some load maybe some lights on, but not a huge load like a giant sub amp. If it can't do that its junk. If a cell dies it will be 2v down its junk.
Your own audio isolator - Audio | Video | Circuits
https://www.epanorama.net/documents/groundloop/audio_isolator_building.html
How to build your own audio isolator. Building yourself an audio isolation transformers. If you want to build one yourself, you have to get two audio transformers which have 1:1 transformation ratio and greater than 1 kohm impedance. There are high quality audio transformers in the markes that meet those specs, but those can be quite expensive.
Audio Amplifier Circuit - UC Santa Barbara
https://web.ece.ucsb.edu/Faculty/rodwell/Classes/ece2c/labs/Lab%201a%20-%202C%202007.pdf
In the first part of lab#1 you will construct a low-power audio amplifier/speaker driver based on the LM386 IC from National Semiconductor. The audio amplifier will be a self-contained, battery-operated component. In the second part of the lab you will construct a microphone circuit using a compact electret condenser microphone cartridge.
Any Advantage to Isolating a Battery ... - All About Circuits
https://forum.allaboutcircuits.com/threads/any-advantage-to-isolating-a-battery-during-charge.156330/
EDIT: The P-mosfet and direct connection to V-USB would be deleted from the circuit without isolation. Details: The system will be powered by a single lipo battery and operating voltage will be 3.3V. The battery charger will be a Microchip MCP73831/2. The system regulator (VR) will be an LDO MIC5319 or similar with an enable function.
Dual Battery Isolator Schematic (simplified) Diagram
https://www.custombatterycables.com/battery-isolators/
The Diode Battery Isolator. The diode type battery isolator uses semiconductor diodes to split the current from the alternator or generator and charge 2 or more batteries at the same time. One battery is used to start the engine and the other is used to run the accessories. The load on the accessory battery does not drain the starting battery ...
Finally isolated the circuit that was causing drain on battery
https://www.reddit.com/r/MechanicAdvice/comments/l9pqre/finally_isolated_the_circuit_that_was_causing/
I removed the subwoofer and wiring a few years ago and never had battery issue. I unplugged the radio when I was troubleshooting but it was still causing battery to die. I guess I will need to trace wires down. I also isolated the wire-harness behind the fuse box to one harness that I am assuming controls the fuse that is on the circuit.
Isolated Battery Drain Issue Now What? - Cadillac Owners Forum
https://www.cadillacforums.com/threads/isolated-battery-drain-issue-now-what.1071398/
I have a 2006 CTS that will drain the battery overnight. It will continue to pull 2.7 amps constantly till its dead. If I pull the audio fuse the amp draw goes down to 1.6 amps. If I pull the amp fuse the amp draw goes down to 1.6 amps. If I pull both the Amp and Audio fuses the amp draw goes...
Circuit-Two 12v Battery Isolator uses a LTC4412Hobby Circuit
http://www.discovercircuits.com/H-Corner/bat-iso.htm
Two 12v Battery Isolator Circuit with a LTC4412 designed by David A. Johnson, P.E. Linear Technology has just announced a neat little chip (LTC4412). It has been designed to be used in conjunction with an external P-channel power FET, to form an ideal diode function with a very low 0.05v voltage drop.
Reduction of DC-Link Capacitance in Single-Phase Non ...
https://jpels.org/digital-library/manuscript/file/15904/06-JPE-18-10-015.pdf
(LV) battery is used to supply power for electrical equipment such as the lights, audio system, and ECUs [15]. Unlikely conventional vehicles which use an alternator, these LV batteries are charged from a high-voltage (HV) battery through an isolated …
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