Product category:
Batteries and Chargers
News Release from: Young Electronics Group | Subject: Maxwell Powercache PC-48
Edited by the Electronicstalk Editorial
Team on 11 August 2005
Ultracapacitor module is battery
alternative
The Maxwell Powercache PC-48 module provides a high reliability, maintenance-free alternative to batteries for short-term backup power.
Available now from Young Electronics, the Maxwell Powercache PC-48 module provides a high reliability, maintenance-free alternative to batteries for short-term backup power The Powercache system, winner of Design News magazine's Best Product Award 2004, is designed to offer uninterruptible power supplies (UPSs) in high-reliability telecomms, industrial and medical systems
This article was originally published on Electronicstalk on 8 Nov 2004 at 8.00am (UK)
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The Powercache provides primary 48V DC power during startup or transfer to generators, micro-turbines, fuel cells or other alternative primary or backup energy sources.
The Powercache system incorporates long life, high reliability ultracapacitors, rated at 1.6 and 2.3kW-min, that require no periodic maintenance and have an expected life of 10 years.
The new system is designed as a rack-mount device to fit the majority of telecommunication and data racks and it can be either flush or centre mounted in a 19 or 23in rack.
The Powercache system also incorporates a charging circuit that can rapidly recharge using excess energy from a 48V DC bus.
Depending on the available current the module can initially charge from full discharge to full charge in less than 15min.
Typical recharge time after a discharge is dependent on available current and depth of discharge but can be from 1 or 2min up to 10min to full recharge.
The module can support in excess of 100,000 cycles regardless of depth of discharge.
The module also incorporates status indicators that provide front panel LED and relay contact closures indicating power, charging and fault status.
The Powercache system complies with Network Equipment Building System (NEBS) standards.
The Powercache incorporates a DC/DC boost convertor that will reduce the slope of the ultracapacitor discharge to mimic a typical lead acid battery slope.
Optimum bridge time for the module is between seconds to minutes and is rated in watt minutes.
A watt minute is defined as the amount of power (watts) that can be supplied across the output discharge slope for 1min.
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