Power Ring Film Capacitor™ Technology

SBE has developed an innovative and novel technology like nothing the capacitor industry has seen before; the Power Ring.

We invite you to take a few minutes to explore the Power Ring, its capabilities, technology, and performance advantages.

	Power Ring Product Overview (pdf link) Provides a general overview of design and performance capabilities, terminal configurations, and photographs illustrating the range and flexibility of how the Power Ring can be designed to meet your specific requirements!
	High Temperature, High Ripple Current DC Bus Film Capacitors (pdf link) Presentation from 2008 Motor, Drive & Automation Systems Conference analyzing R&D data on testing of high crystalline structure polypropylene film
	Status Report and Technology Overview of Leading Edge Development In the field of Increased Power Density Inverter Technology and the use of 105°C Engine Coolant for the DC Link Capacitor (pdf link) SBE has developed an innovative new annular capacitor technology which when combined with integration of inverter semiconductors should provide the path to a significantly increased power density inverter capable of operating using the available HEV/PHEV 105°C engine coolant for both semiconductors and capacitors at similar or less expensive costs than today’s technology
	Improve Your Inverter Performance with SBE's Innovative Power Ring Capacitor Design (pdf link) Patent Pending designs for the use of IGBTs integrated with the SBE Power Ring for increased Power Density Inverters.
	Technical Paper: "Stacking the Power Ring for High Voltage and High Current Applications" (pdf link) Technical paper from the 2007 IEEE Pulsed Power Conference presenting data on stacking the Power Ring to achieve higher voltages.
	Presentation: "Stacking the Power Ring for High Voltage and High Current Applications" (pdf link) Presentation given at the 2007 IEEE Pulsed Power Conference providing the details of the testing and design aspects in support of the above technical paper. Provides an overview of the Power Ring stack, details on voltage grading, modularity advantages, and technical findings of the interconnect system used in the stack assembly.
	Thermal Considerations Regarding the Use of the Power Ring in High Ripple Current Applications (pdf link) Presentation from Motor & Drive Systems 2007; an overview of temperature rise, bus interconnect considerations, and the Power Ring's ability to handle extreme operating conditions.
	Power Ring Performance vs. conventional array (pdf link) How does a single Power Ring "stack-up" against an array of discrete film capacitor units? Presented at SAE Convergence 2006.
	Power Ring Optimized for Short Pulse Power (pdf link) Technical poster presented at IEEE Power Modulator Conference 2006, comparing test data of SBE's patented pulse film technology and traditional metallized polypropylene film. In addition reliability data was presented from a 1,000,000 discharge test at 10,000 Amps.
	Power Ring for embedded e-drive applications (pdf link) Presentation from Motor & Drive Systems 2006 regarding implementation of Power Ring with circular inverter design
	Technical Paper: Annular Form Factor Film Capacitors (pdf link) Presented at the 2005 Pulsed Power Conference; reports on design, testing criteria, and results
	Technical Paper: An Extremely Low ESR and ESL Annular Film Capacitor (pdf link) Presented at PowerSystems World 2005; detailing use of the Power Ring in large switching power systems.
	Video clip (mov file) (The video opens in a separate window and requires Quicktime to play. If you do not have Quicktime you can download it by visiting www.quicktime.com) Test set-up utilized to gather data in reference to the above paper, Annular Form Factor Film Capacitors. Note the capacitor in the left background and the ringout pattern captured on the scope. Refer to the paper for additional details.

© SBE 2008
All rights reserved.