Thanks also to Jae Park and Kien Pham, and NSF for sponsorship as part of the OMA project.
B# (pronounced B-sharp) is a battery emulator. It is an intelligent power supply whose voltage response to current load mimics that of a real battery. Currently we use dualfoil as the simulator for lithium ion batteries. Details of this board can be found here.
[news 7/14/03] B# is a winner of this year's ISLPED 2003 Low Power Design Contest.
- Technical Paper:
- Data Files:
- FullChargeLongRun.txt (1.2MB) -- voltage and current samples taken by B# (@33ms/sample over 27 minutes). This is an iPaq from fully charged to fully drained. The variation in load was achieved by changing the backlight brightness over four levels. Five levels available: A(super bright) > B (high bright) >C (Medium bright) > D (Low bright) >E(Power Save, which is actually same as off); we use levels A,B,C,E.
E(1min), A(1min), C(1min), B(1min), A(1min), E(1min), A(1min), C(1min), B(1min), E(2mins), A(2mins), C(2mins), B(2mins), E(3mins), A(3mins), C(3mins), A(less than 1min)