Summary of New DCH3 AC-DC Power Adapters from Emerson Network Power Comply With Efficiency Requirements of Ecodesign Directive 2009/125/EC
Emerson Network Power launched the DCH3 series, a new line of 3W ultra-high efficiency wall-mount AC-DC power adapters. These adapters meet international Level V standards and EU Ecodesign Directive Tier 2 requirements for mandatory CE marking. Redesigned with a new PCB layout and PWM transformer, they feature universal input (100–254 Vac) and provide regulated 5Vdc at 0.55A output. Available in six models with mini-USB or micro-USB connectors and three regional plug options, they are ideal for recharging low-power devices like mobile phones and digital cameras while maintaining extremely low leakage current.
Parts used in the DCH3 Series Power Adapters:
- PCB layout
- PWM transformer
- Mini-USB 2.0 output connector
- Micro-USB 2.0 output connector
- AC input plugs
Carlsbad, CA (PRWEB) April 26, 2011
Emerson Network Power, a business of Emerson and the global leader in enabling Business-Critical Continuity, today launched a new series of 3 W ultra high efficiency wall-mount ac-dc power adapters that meet the international efficiency Level V standard. The new DCH3 series power adapters also comply with the even more stringent Tier 2 Energy-related Products (ErP) requirements of Ecodesign Directive 2009/125/EC. Compliance with this Ecodesign Directive becomes mandatory in European Union countries on April 27, 2011. After this date, all external power supplies for consumer electronics and office equipment must meet this efficiency standard in order to gain a CE mark of approval which is a prerequisite to sales in the European marketplace.
Emerson Network Power has extensively redesigned its entire DCH3 range of ac-dc power adapters to comply with the Level V standard and to meet the additional ErP requirements of the European market, which sets even more rigorous criteria for conversion efficiency and standby power, said Chris Jones, product marketing director, Embedded Power, Emerson Network Power. Similar efficiency standards and conditions on sales are likely to be imposed by energy regulators in other countries. Key design changes include an entirely new PCB layout and a new type of PWM (pulse width modulation) transformer for the power switching stage.
The new efficiency Level V versions of the Emerson Network Power DCH3 have a universal 100 to 254 Vac input and generate a regulated 5 Vdc output, capable of delivering 0.55 A. The power adapters are primarily intended for recharging low power portable consumer electronic devices such as mobile phones and digital cameras.
There is a choice of six models; three are fitted with mini-USB 2.0 output connectors, and three are fitted with micro-USB 2.0 connectors, which are used extensively by most of the worlds leading mobile phone manufacturers. Each of these two categories is available with a choice of three different AC input plugs, to suit the region of the world in which they are intended to be used.
All efficiency Level V versions of the Emerson Network Power DCH3 power adapter produce a constant voltage, constant current output and have an extremely low safety ground leakage current of just 10
- What efficiency standard do the new DCH3 power adapters meet?
The adapters meet the international efficiency Level V standard. - Can these adapters be used in European Union countries after April 27, 2011?
Yes, they comply with the mandatory ErP requirements needed for CE mark approval in the EU. - What key design changes were made to achieve higher efficiency?
Design changes include an entirely new PCB layout and a new type of PWM transformer. - What is the input voltage range for the DCH3 series?
The adapters have a universal 100 to 254 Vac input. - How much current can the power adapters deliver?
They are capable of delivering 0.55 A at a regulated 5 Vdc output. - Which types of devices are primarily intended for these adapters?
They are primarily intended for recharging low power portable consumer electronic devices such as mobile phones and digital cameras. - Are there different connector options available for the DCH3 series?
Yes, there are models fitted with either mini-USB 2.0 or micro-USB 2.0 output connectors. - Does the DCH3 series offer different plug options for various regions?
Each category is available with a choice of three different AC input plugs to suit the region of use.
