mWSaver™ Technology from Fairchild Semiconductor Offers Best-in-Class Power Savings for Power Supplies
November 30 2010 - 2:00PM
Business Wire
As electronic applications gain in popularity, the demand for
AC-DC external power supplies is also occurring. The volume of
external power supplies is expected to increase more than 11
percent between 2009 and 2013. Today, there are between 6 and 10
billion power supplies in use worldwide which are typically plugged
in and unused for 20 hours a day, while constantly drawing power.
These numbers illustrate the growing concern of energy waste and
illustrate the profound possible impact of reducing standby
power.
While the best power supplies are more than 90 percent
efficient, some are only 20 to 40 percent efficient, wasting the
majority of electricity that passes through them. Power supplies
can account for nearly 10 percent of the total residential
electricity used yearly. Regulations and technology help to reduce
standby power, but the increase in the number of appliances and
equipment that consumes power continues to grow, especially in
developing countries.
Fairchild Semiconductor’s (NYSE: FCS) new mWSaver™ technology
offers the best-in-class power savings for power supplies, with the
fewest possible components. Devices in the mWSaver series integrate
five patented technologies: off time modulation, JFET HV start-up
and circuit, feedback impedance switch, HV discharge, and PSR
control to drop out voltage; as well as burst mode operation and
low operation current techniques. It is only by the unique
integration of these technologies, leveraged together, that the
most stringent standby specifications can be met.
Features of the mWSaver technology are:
- Best-in-class standby/no-load power
consumption per component;
- The ability to lower standby power for
external components, such as resistors, capacitors, inductors and
rectifiers;
- Excellent efficiency ratings at full
load;
- The ability to exceed all no-load
regulatory requirements worldwide;
- A reduced Bill-of-Material (BOM) and
lower overall system costs by eliminating the need for additional
circuits and components, while integrating protection functions
like brownout, under-voltage lockout (UVLO), over-voltage
protection (OVP), open-loop protection (OLP) and over-temperature
protections (OTP).
Power supply manufacturers can now achieve the ultra-low standby
power performance their customers want, while eliminating
components and lowering BOM costs with mWSaver technology.
Consider the potential impact if the United States converted to
Energy Star rated battery chargers, which are 35 percent more
efficient than conventional models. That one change would save more
than 1 billion kilowatt hours (kWh) of energy and $100 million
annually while preventing the release of more than one million tons
of greenhouse gas emissions - equivalent to taking 150,000 cars off
the road. Every mW saved further reduces the unnecessary
consumption of natural resources, enabling a cleaner
environment.
Contact Information:
For information on products, design tools and sales contacts,
please visit: http://www.fairchildsemi.com.
For more information on power supplies:
http://www.fairchildsemi.com/powersupply
About Fairchild Semiconductor:
Fairchild Semiconductor (NYSE: FCS) – global presence, local
support, smart ideas. Fairchild delivers energy-efficient,
easy-to-use and value-added semiconductor solutions for power and
mobile designs. We help our customers differentiate their products
and solve difficult technical challenges with our expertise in
power and signal path products. Please contact us on the web at
www.fairchildsemi.com.
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