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Something about Open Frame Power Supply ~by Astek engineer4
Astek Globe 9Fl-1., No. 428, Chung Hsiao E. Road, Xizhi Dist., New Taipei City, Taiwan
AC DC Switching Power SupplyEvery day, we need electricity to power on the daily devices. Let’s see how it work. After the power plant sends thousands of AC high voltages of 20,000 volts, it is stepped down to 100V and 200V through the transformer in the pole before being sent to the general household. The outlet in the house supplies AC power, so after the AC/DC power supply conversion circuit, the DC power is supplied to the household appliance.The type we insert into the appliance is open frame power supply. Another with a plastic case, AC plug/AC inlet and DC connector is power adaptor. As to the usages, there are IT switching power supplies, medical power supply units, battery chargers, USB chargers and DC DC car adaptors. These are on Astek’s power supplies product lists.About the switching power supplies design, at the initial stage, the required specifications must be confirmed.1. Input voltage range, output voltages/currents2. Standby power3. Max./min./cooling temperature4. The allowable area/heights in size5. Necessary protection: such as overcurrent, overvoltage, and over temperature6. Special environments/application: like used in tropic zone or with aerospace…7. CostsEvaluation and trial1. Use evaluation board / work2. Make a test board, run under preset conditions and evaluate performance3. Debugging, optimization4. Distinguish Compliance / non-compliance with specifications and safety standards.5. Reserved space for modification and upgrade by customers’ demand or when new safety standards enforced.When evaluating, carefully check the output voltage, load current, temperature upper limit, etc. If the design is not able to withstand the temperature, it is easy to deviate from the required specifications during mass production, or because the batch affects the yield. The characteristics of the components that make up the circuit are different, so it is important to understand the characteristics of the part and design an article that meets the specifications. During this period, it’s critical to choose the right components, power supply layout and circuits.After then, the design of power supplies is closed to complete and initiate the mass production. Before the shipments, our factory will inspect with Chroma and 100% burn-in tests.Any inquiries, please feel free to touch us. https://www.astekglobe.com/hot_317390.html AC DC Switching power supplies 2021-01-20 2022-01-20
Astek Globe 9Fl-1., No. 428, Chung Hsiao E. Road, Xizhi Dist., New Taipei City, Taiwan https://www.astekglobe.com/hot_317390.html
Astek Globe 9Fl-1., No. 428, Chung Hsiao E. Road, Xizhi Dist., New Taipei City, Taiwan https://www.astekglobe.com/hot_317390.html
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2021-01-20 http://schema.org/InStock $NT 0 https://www.astekglobe.com/hot_317390.html
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Something  about Open Frame PSU

 Someone asked me to talk about my works so let me have to chance to say...

 I regard my works as the matchmaker between power supplies and applications. They have some interesting philosophies.   

The open frame is the PCB power used inside without case. Thanks to inner use and power up the application, we understand it's critical to open frame technologies of quality and stability of open frame structure, components, PCB board, inside convection, electronic performance and so on. At the design stages, we also have to consider safety, efficiency, and environmental regulations, electronic characteristics among PCB powers and equipment, manufacturability. It's said, " A good start is the beginning of success."

Astek engineer are familiar with the electronic characteristic, international safety certifications, environmental regulations, the design of layout and craft of open frames. Astek open frame: small size, power supply inside use, good design, IEC60950-1, IEC62368-1, IEC60601-1. UL, CUL, CB, CE, FCC. 5~56V, 5W~500W.

If necessary, open frame SMPS envelope is also considerable. 


When inquiries, we collect the relative information about the required specifications and access to get the bull eyes. Always, customer are happy with it too because good PCB powers will save costs and avoid troubles, especially inner use. 

Best regards, 

Steven Wu

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