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How much power does the graphics card consume through the ATX connector

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The article focuses on measuring the power consumption of a graphics card through the ATX connector and attempts to solve electromagnetic interference problems. The tests were conducted on the ASUS Radeon RX 580 Dual OC 8GB graphics card, which has a power consumption of 185W and an 8-pin power connector. During the measurements, the highest (average) current that flowed through this connector was 9.2A, which gives 103.2 W at 12V. The article also discusses the challenges of using an EMI filter on the GPU power cord and presents test results using a new oscilloscope. The article concludes by showing the voltage boost by the power supply with increased power consumption by the graphics card.

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Isolation transformer in an electronics workshop

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The article discusses the applications and construction of isolation transformers, which are used to separate the load from the power source in electronic circuits. The article also covers the short-circuit current limitation and the voltage ratio of isolation transformers. While isolation transformers reduce the risk of electric shock, they do not completely eliminate it. The condition of the insulation of the transformer, network, and receiving devices should be monitored to prevent an increase in short-circuit current.

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Does the PC power supply introduce harmonics into the power grid?

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The article presents measurements of the harmonic content introduced by a PC power supply into the power grid, both under no-load and loaded conditions. The results show that the level of higher harmonics does not exceed 5%, which can be considered a good result. The article also notes that changes in the computer configuration, such as the graphics card, can affect the measurement results. The focus keyphrase for the article is “PC power supply unit harmonics.”

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