This article is a summary of a YouTube video "How Power Supplies Are Made (2020) | PSU Factory Tour, ft. Cooler Master" by Gamers Nexus

The Process of Making a Power Supply: Physical Assembly

TLDRIn this video, we explore the physical assembly process of making a power supply. We visit a factory in Tainan, Taiwan, where Coolermaster and other brands assemble and test their power supplies. The assembly process includes service mount technology (SMT) lines, automated and optical inspection, pick and place machines, soldering, reflow ovens, and manual assembly. The power supplies undergo thorough testing and burn-in to ensure quality and reliability.

Key insights

🔌The power supply assembly process includes service mount technology (SMT) lines, automated and optical inspection, pick and place machines, and soldering.

🔧The power supplies undergo thorough testing and burn-in to ensure quality and reliability.

💡The factory assembles power supplies for Coolermaster and other brands, while R&D and some components are sourced from factories in China.

🌡️The burn-in process involves heavily loading the power supplies and raising their temperature to test their reliability.

Electrostatic discharge (ESD) measures are taken throughout the factory to protect the sensitive components of the power supplies.

Q&A

What is the purpose of the burn-in test?

The burn-in test is conducted to stress the power supplies and check their reliability by subjecting them to a worst-case scenario.

How are power supplies tested for quality?

Power supplies undergo thorough testing, including high amperage tests, high voltage tests, IEC compliance tests, and burn-in tests.

Where are power supply components sourced from?

Some components and chassis are sourced from factories in China, while the assembly and testing are done at the Tainan, Taiwan factory.

What measures are taken to protect against electrostatic discharge?

The factory uses an ESD-resistant coating on the conveyor belts and floor, and workers wear half gloves to minimize fingerprints on the power supply casings.

What brands have their power supplies assembled at this factory?

Coolermaster and other brands have their power supplies assembled and tested at this factory, although specific brand names cannot be disclosed.

Timestamped Summary

00:00Introduction to the factory and its role in assembling and testing power supplies for Coolermaster and other brands.

02:56Explanation of the service mount technology (SMT) lines, automated and optical inspection, and pick and place machines used in the assembly process.

04:56Overview of the reflow oven process, where solder paste is melted into liquid solder to create strong joints on the PCBs.

08:30Insight into the manual assembly process, including the placement of heat sinks and large components.

10:25Details of the testing and burn-in process, including high amperage tests, high voltage tests, and temperature stress tests.

11:53Explanation of the measures taken to protect against electrostatic discharge (ESD) and ensure component reliability.