Cap-xx Limited · LSE:CPX

Cap-xx — Intel Developer Forum Spring 2001

14 slides from Cap-xx's conference presentation, 2001

1. Slide 1: cap-XX: Digital power for next mobile generation

   cap-XX: Digital power for next mobile generation Intel Developer Forum Spring 2001 George Paul, COO, cap-XX Rory Pynenburg, Business Development Manager, cap-XX

2. Slide 2: cap-XX supercapacitors

   cap-XX designs and manufactures the world’s most advanced supercapacitors cap-XX supercapacitors vs. vs. X5 Revolutionary combination of power and energy in one small device cap-XX: Digital power for next mobile generation

3. Slide 3: Problems for next mobile generation

   Users want longer run time from their notebook computers Problems for next mobile generation Issues Problems 1. Power surges from the Premature shut down CPU cause voltage ripple in the battery 2. Sudden current loads from Premature shut down devices cause voltage droop on the battery 3. Transient p

4. Slide 4: Key cap-XX benefits

   cap-XX supercapacitor technology improves power management Problems Key cap-XX benefits ‰ Premature shut down ‰ 86% lower voltage ripple preventing premature ‰ Decreased battery run time battery-driven shut down in ‰ Decreased battery life notebooks (demonstration) ‰ Absorption of CPU and other powe

5. Slide 5: The cap-XX mobile experience

   Specific additional benefits arising from… The cap-XX mobile experience ‰ Backup to main power rail in power-on-suspend permitting battery hot swap (demonstration) ‰ -200C operation where batteries struggle with power delivery ‰ Delivery of power surges for wireless connectivity resulting in adoptio

6. Slide 6: Battery Hot-Swap Demonstration

   Battery Hot-Swap Demonstration 1 ‰ Today’s designs typically requires – Complete system shutdown or Suspend to disk – Long Resume Time – AC Adapter presence – Inconvenient ‰ cap-XX Supercapacitor provides hold- up charge for battery swapping with much faster resume time cap-XX: Digital power for nex

7. Slide 7: Hot-Swap Demo Set Up

   Hot-Swap Demo Set Up WHIDBEY Platform Power Board Intel® Mobile Module Power Switch CPU Pentium-III Control IMVP VR Power Connector Power Connector BX Main DC-DC Northbridge Voltage Regulator PIIX4 Memory HDD Fan Grfx Battery Connector Southbridge Suspend to RAM cap-XX Supercapacitor cap -XX Superca

8. Slide 8: Mobile Power Delivery Demonstration

   Mobile Power Delivery Demonstration 2 VDC AC/DC CCFL Inverter LCD Backlight Charger CPU Core Intel® CPU VTT Pentium-III Processor CPU CLK Main 3.3V ¾6-cell (2p x 3s) Li-Ion MX Mem Clk Grfx ¾9-12.6V (15V AC/DC) ¾Pack Parameter Main 5.0V 940WHr Capacity 9105mΩ pack resistance HDD FDD DVD Fan cap-XX: D

9. Slide 9: CPU Power Delivery Model

   CPU Power Delivery Model Smart 10A Transient CPU from CPU Battery CPU VRM Pack Low-Batt ‰ Transient from CPU VREF ¾ CPU Power Management Routine ¾ StpClk (Thermal Throttling), etc.. ‰ Large Ripple Current in Battery from CPU ¾ Accidental (premature) Low-Batt Detection ¾ Premature System Shutdown Pre

10. Slide 10: CPU Power Delivery Model: Battery Transient Suppression

    Battery Transient Suppression CPU Power Delivery Model cap-XX Supercapacitor • ESR < 105 mΩ ‰ cap-XX Supercapacitor absorbs CPU transient ¾ Much reduction of battery ripple current ¾ Achieve more accurate Low-Battery Detection Supercapacitor = Increase of Battery Run Time cap-XX: Digital power for n

11. Slide 11: Mobile Power Delivery

    Mobile Power Delivery VDC AC/DC CCFL Inverter LCD Backlight Charger CPU Core Intel® CPU VTT Pentium-III™ Processor CPU CLK Main 3.3V ¾Supercapacitor filters MX Mem Clk Grfx transient at VDC Node ¾Battery Current is almost Main 5.0V “DC” HDD FDD DVD Fan cap-XX: Digital power for next mobile generatio

12. Slide 12: Transient Demo Set Up

    Transient Demo Set Up WHIDBEY Platform Power Board Intel® Mobile Module Power Switch CPU Pentium-III Control IMVP VR Power Connector Power Connector BX Main DC-DC Northbridge Voltage Regulator PIIX4 Memory HDD Fan Grfx Battery Connector Southbridge Simulating 63mΩ Bench cap-XX Power Battery Pack Sup

13. Slide 13: Test Result: Instantaneous Power Experiment

    Test Result Instantaneous Power Experiment 10000 9000 8000 7000 Power, mW 6000 5000 4000 3000 2000 1000 0 Battery Battery + Battery Battery + Battery Battery + Mk2 S/C #1 Mk1 S/C #1 Mk1 S/C #2 cap -XX Supercapacitor REDUCES cap-XX instantaneous power by 8x! cap-XX: Digital power for next mobile gene

14. Slide 14: Test Result

    Test Result Without Supercapacitor With Supercapacitor cap -XX Supercapacitor REDUCES battery cap-XX ripple voltage by 10x! cap-XX: Digital power for next mobile generation

cap-XX — Intel Developer Forum Spring 2001 on 6ix