External AC-DC power blocks meet US DoE Level VI and EU CoC Tier 2

January 25, 2016 // By Graham Prophet
XP Power has developed four external power supply series that enable products to meet new EU and US environmental and energy efficiency regulations, which come into force this year.

The VEC40, VEC50, VEC65 and VES90 series of external AC-DC power supplies all comply with the new DoE level VI (US) and CoC Tier 2 (EU) regulations, drawing less than 0.15W for the VEC50 , VEC65 & VES90 and less than 0.075Wfor the lower power VEC40 when in standby, offering average active mode efficiency of 89% or higher and exceeding the 10% load efficiency standard in the EU CoC Tier 2 requirements.

CoC Tier 2 came into force on 1st January 2016, and DoE Level VI takes effect on the 10th February 2016. These new requirements reduce the no-load power to less than 0.15W (50-250W supplies, 0.075W for 1-49W supplies) and push the market towards a flatter efficiency curve, with efficiency readings now required at 10, 25, 50, 75 and 100% of load. Single output models in the range deliver 12, 15, 19, 24 and 48 VDC.

The supplies, which measure 116.3 x 52.4 x 3.13 mm for the VEC series and 139.0 x 58.0 x 31.0 mm for the VES series, come with a common IEC320-C14 input connector, with VEC series supplies also available with an optional IEC320-C6. The VEC models are approved as an LPS (limited power source), which reduces the risk of shock if incorrectly installed.

The VEC40 and VEC50 have an operating temperature range between 0 and 65C, derating from 45C, the VEC65 and VES90 have an operating temperature range between 0 and 60C, derating from 40C. All models have CCC (China Compulsory Certification) as well as ITE 60950-1 safety approvals and meet Class B limits for both conducted and radiated EMC noise.

XP Power; www.xppower.com