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High Standard Power Supply

Eahunt will provide long-term accumulated power supply technologies for more applications, covering consumer electronics, industrial, lighting, smart home, medical and other electrical products. All the products meet the requirements of EU ERP VI and U.S. DoE VI/CEC VI (six level of energy efficiency standard) and come with safety approvals of UL、CE、 CCC、CB、ETL、GS 、BS、KC、SAA、PSE、RoHS etc. marks and reliability certifications

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product-750-413

With all the certifications UL, ETL, FCC, CE, CB, GS, CCC, CQC, PSE, KC, KCC, SAA, RCM, etc.

The 7 steps of switching power supply repair

Switching power supply repair belongs to the category of chip-level repair. The power supply part, as an important starting part of industrial equipment, is a prerequisite for the normal operation of industrial equipment, and it plays an extremely important role. The following power adapter manufacturers tell you switching power supply repair what steps?

1, check the power supply: check the power supply, not only with a multimeter to check the voltage size, but also with an oscilloscope to check the voltage waveforms

2, check the crystal: check the crystal vibration has not been vibration, you can use an oscilloscope to check the crystal pin waveform to view

3, check the reset: check the reset signal is not normal, the reset pulse has not been correctly sent to the CPU chip reset foot.

4, check the bus: data bus, address bus, control bus, any one of the open or short-circuit can lead to failure, you can test the parallel bus resistance to ground to compare a certain way to determine whether there is no failure, or observe the waveform of each bus to determine.

5, check the interface chip: interface chip is the most bad class of components, can be replaced or special instrumentation to determine whether the damage.

6, replacement components: through the line test, component detection, etc., to find out the fault for processing, including line repair, component replacement, transformation and other work.

7, test the power supply: after troubleshooting, before the machine, to carry out offline loading test. Qualified before the on-line load test and use.

Above is the power adapter manufacturers summarize the switching power supply repair 7 steps.

I hope Eahunt's information can help you.

Eahunt only do high standard power supply, product 100% aging test, life expectancy can reach 100,000 hours, to meet the 10,000 times plugging and unplugging without failure standard. Product certification is complete, with CCC CE UL CB PSE KC GS, FCC multiple international safety regulations.