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Gallery View: Switching power supplies adopt AC-to-DC, DC-to-AC conversion
Global SourcesUpdated on 2023/12/01
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Releases come in 30kHz to 1GHz and 12W to 1kW models.
Mainland China's selection consists of switching power supplies using AC-to-DC or DC-to-AC conversion and 30kHz to 1GHz frequency.
Products have rated power of 12W to 1kW, and efficiency surpassing 85 percent. The typical operating temperature range is -10 to 60 C.
Most units bear CE, RoHS and TÜV approval.
The major components used in the manufacture of switching power supplies include ICs, MOSFETs, capacitors, inductors and PCBs. For the first, companies turn mainly to foreign providers from the US and Taiwan. TI, Fairchild, National Semiconductor and On Semiconductor are the key sources.
Prices have been stable since last year. This trend will prevail in coming months.
Here is a selection of switching power supplies from China:
Open-frame switching power supply has 24VDC, 8.3A output
Shenzhen City Jinrui Energy Technology Co. Ltd's model JRO200-240-830 open-frame switching power supply provides 24VDC, 8.3A and 200W output. Its power factor exceeds 0.95.
The 127x76x38mm unit has 90 to 264VAC input voltage.
The minimum order is 500 units. Delivery lead time is 30 days.
Open-frame switching power supply with 75 percent efficiency
The model GP196Power25W-1 open-frame switching power supply from Shenzhen Gospell Digital Technology Co. Ltd boasts 75 percent efficiency. It has 3.3V, 7A and 25W output. It runs on 90 to 264VAC, 1A. The input frequency is 47/63Hz±5 percent.
The unit integrates overvoltage and short-circuit protection features.
The maker requires a minimum order of 1,000 units. Delivery takes 10 days.
Open-frame switching power supply accepts universal AC input voltage
XP Power Electronics Co. Ltd's model OP-40-70 open-frame switching power supply supports universal AC input voltage. It has built-in overload and short-circuit protection.
The CE-approved unit features a power status indicator. It measures 195x55x23mm. The product undergoes burn-in testing at full load.
The minimum order is 100 units for delivery within 7 days.
Switching power supply provides 12VDC, 40A
This switching power supply from Yueqing Hengwei Electric Co. Ltd, model NES-500W, delivers 12VDC, 40A and 500W output. It operates on 100 to 120VAC, 6.5A or 200 to 240VAC, 4A.
The unit meets CCC, CE, KC, RoHS and TÜV.
The order quantity is negotiable. Delivery is within 7 days.
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