The San Francisco Bay Area chapter of the IEEE Power Electronics Society (IEEE SFBAC-PELS) is interested in the development of power electronics technology. This technology encompasses the effective use of electronic components, the application of circuit theory and design techniques, and the development of analytical tools toward efficient electronic conversion, control, and conditioning of electric power.

SFBAC PELS is the winner of three awards in 2017: PELS Best Chapter, Region 6 Outstanding Chapter, and SCV Section Outstanding Chapter.


Use of Power Monitor with Multiple Inputs Improves Opportunity for System Accuracy & Power Savings
San Francisco Bay Area PELS Chapter

Mitch Polonsky, Microchip

Thursday, January 25, 2018
6:30pm - 7:00pm: Dinner and networking
7:00pm - 8:00pm: Talk and questions

Texas Instruments
Building E Conference Center
2900 Semiconductor Blvd.
Santa Clara, CA 95051

Registration Required!

Admission: $5 (everyone pays at the door). Students and TI'ers: Free

Special thanks to Sponsor Microchip

Special thanks to Venue Sponsor Texas Instruments

Talk Abstract:

Having an accurate measurement of application power consumption facilitates intelligent choices between software, hardware and when to selectively turn off applications in the background. Using a power/energy monitor IC and software driver with Microsoft’s E3 service is a relatively new approach to measuring WIN10 OS system power dissipation. This approach can improve measurement accuracy by 28%. Traditionally, measuring software power has been difficult because it requires knowledge of both the active software applications and multiple active voltage rails in the system. Other solutions have attempted to estimate the power consumption without current sensors and active measurement. They have tended to rely heavily on the measurement of the CPU power consumption. The software-only approach attempts to model power dissipated by the CPU and GPU which have often have power dissipation figures that can be read by the system. Unfortunately this leaves the rest of the system with primarily software estimates to estimate energy consumed from other sources in the system. The power sensor approach uses a current sensor, sense resistor and software driver to associate specific application power to the responsible voltage rails at work in the system. We have modified a Kaby Lake PC reference design with 12 current sensors channels to prove out the system accuracy. The system showed more accurate power measurement when compared to the software only estimate

About the Speaker:

Mitch Polonsky has been a technical marketer in the semiconductor industry for 21 years. During this time he has worked for On Semiconductor, SMSC, and most recently Microchip for the last 5 years. His areas of experience and expertise include DC power monitoring, temperature sensing, fan control, capacitive sensing and USB port power.

Congratulations to the SFBAC-PELS Chapter!

2017 Worldwide PELS Best Chapter Award

2017 Region 6 Outstanding Chapter

2017 SCV Section Outstanding Chapter