Increase Software Power Measurement Accuracy to 99 Percent in Windows 10 Devices with New Power Monitoring IC from Microchip
September 19 2017 - 8:03AM
The PAC1934, a precision power and energy monitoring chip, is now
available from Microchip Technology Inc. (NASDAQ:MCHP). The chip
works in conjunction with a Microchip software driver that is fully
compatible with the Energy Estimation Engine (E3) built into the
Windows 10 operating system to provide 99 percent accuracy on all
Windows 10 devices that have batteries. Combining Microchip’s
PAC1934 and Windows 10 driver with Microsoft’s E3 service can
improve the measurement of battery usage from different software
applications by up to 29 percent.
“With its wide measurement range, Microchip’s
PAC1934 can measure power of the display, CPU, storage, network,
total and other system components with high accuracy,” said Jessie
Labayen, principal program manager at Microsoft. “This is a
significant enhancement to the Windows 10 Energy Estimation
Engine’s software estimation and it is a big step forward for
system providers and everyday consumers.”
The PAC1934 is designed to measure voltage rails as
low as 0V and as high as 32V. It is this ability that allows the
chip to accurately measure power usage from simple Core Processing
Unit (CPU) tasks all the way up to software running on devices that
connect through a USB Type-C™ connector. The PAC1934 is a
four-channel device with 16-bit power measurement and a 17 minute
plus accumulation register, making it ideal for determining power
consumption and energy usage without the need for voltage or
current range adjustments.
“Windows 10 devices need a power monitoring IC that
is accurate and easy to adopt in order to display the most accurate
information about software power usage,” said Bryan Liddiard, vice
president of marketing for Microchip’s Mixed Signal and Linear
Division. “Consumers won’t necessarily know Microchip is behind the
scenes, but people across the globe will have more reliable battery
life statistics because of this new device.”
The device has capabilities that could also make it
an integral part in future software upgrades. Through bidirectional
measurement—meaning it has the ability to measure both battery
charging and battery discharge—it is well suited for upcoming USB
Type-C charging topologies as they are developed and become more
widely used. In addition, the device functions as a standard
high-side current sensor for use in server, networking, automotive
and industrial applications. Microchip is also actively working to
support the PAC1934 in Linux® for various applications.
For more information, visit:
www.microchip.com/PAC1934
Pricing and AvailabilityThe
PAC1934 power monitoring IC is available now for sampling and in
volume production starting at $1.22 each in 10,000 unit
quantities.
For additional information, contact any Microchip
sales representative or authorized worldwide distributor, or visit
Microchip’s website. To purchase products mentioned in this press
release, go to Microchip’s easy-to-use online sales channel
microchipDIRECT or contact one of Microchip’s
authorized distribution partners.
ResourcesHigh-resolution images
available through Flickr or editorial contact (feel free to
publish):
- PR graphic:
www.flickr.com/photos/microchiptechnology/36908298370/in/dateposted/
- Chip Graphic:
www.flickr.com/photos/microchiptechnology/37306757385/in/dateposted/
Video available through YouTube or editorial
contact (feel free to post):
www.youtube.com/watch?v=yYxB_49TUL8&feature=youtu.be
About Microchip
TechnologyMicrochip Technology Inc. (NASDAQ:MCHP) is a
leading provider of microcontroller, mixed-signal, analog and
Flash-IP solutions, providing low-risk product development, lower
total system cost and faster time to market for thousands of
diverse customer applications worldwide. Headquartered in
Chandler, Arizona, Microchip offers outstanding technical support
along with dependable delivery and quality. For more
information, visit the Microchip website at
www.microchip.com.
Note: The Microchip name and logo and the
Microchip logo are registered trademarks of Microchip Technology
Incorporated in the U.S.A. and other countries. All other
trademarks mentioned herein are the property of their respective
companies.
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