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The OP question has been flogged to death. Thread closed.
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SUMMARY
The discussion centers around the need for a pure 5V output power bank for a spectrometer, specifically avoiding switching power supplies due to concerns over noise affecting sensitive laboratory equipment. Users suggest alternatives, including using lithium-ion batteries in series with alkaline batteries, and the professional approach of utilizing a 12V battery with a DC-DC buck converter followed by a linear regulator for smoothing. The consensus emphasizes the importance of ensuring stable voltage to prevent damage to expensive equipment, with recommendations for off-the-shelf solutions like Meanwell converters.
PREREQUISITES- Understanding of linear voltage regulators and their applications.
- Knowledge of DC-DC buck converters and their role in voltage regulation.
- Familiarity with battery chemistries, specifically lithium-ion and alkaline batteries.
- Basic principles of power supply design and noise considerations in sensitive electronics.
- Research "Meanwell DDR series power supplies" for reliable 5V output options.
- Explore "DC-DC buck converter modules" suitable for converting 12V to 5V.
- Investigate "linear voltage regulators" for smoothing power supply outputs.
- Learn about "battery configurations" to achieve stable 5V output from multiple cells.
Laboratory technicians, electrical engineers, and anyone involved in powering sensitive electronic equipment with specific voltage requirements.