Search Results - electronics

6 Results

Sort By:

Optoelectronic Materials: Facile Method Enables Exploration of New Organic-Soluble Graphene

Technology Description: An exciting method has been discovered that enables facile synthesis of novel azaborine (i.e., nitrogen and boron containing) compounds. These new compounds include polycyclic aromatic molecules (e.g., graphene-like novel compounds) wherein a number of benzene rings have been replaced by six-membered rings in which a boron-...

Published: Apr 5, 2013 | Inventor(s): Suning Wang, Jiasheng Lu, Sean McDonald, Soo-Byung Ko

Keywords(s): Chemistry, Electronics, Advanced Materials, PAN - Direct Investor, Life Sci - Bio materials, Engineering, Chem., Media Physical Science

Category(s): Chemicals, Electrical, Electronics, Energy, Imaging, Materials, Optics, Semiconductor

Calibration Free Eye Gaze Secure Entry System

Biometric security systems are highly secure, however they are costly and may be considered an invasion of privacy by employees. Manual keypad and proximity devices are more user friendly, however their security capability is often lacking. With the current product mix for secured access systems, a product line featuring secured access based on ey...

Published: Jan 5, 2012 | Inventor(s): Roel Vertegaal, Changuk Sohn, Daniel Cheng, Victor MacFarlane

Keywords(s):

Category(s): Electronics, Security

Low Cost Current-Source Gate Driver

Current source gate drivers provide greatly improved power converter performance compared to standard voltage mode drivers, but they typically require 4 on-chip MOSFETs to control each power MOSFET, making the drivers more costly. Researchers in the department of Electrical Engineering at Queen’s University in Kingston, Ontario, Canada have dev...

Published: Jan 4, 2012 | Inventor(s): Yan-Fei Liu, Zhiliang Zhang

Keywords(s):

Category(s): Power Electronics, Electronics, Computer Hardware

Advanced Current Source Gate Driver for Buck Converters

Buck converters are still the most commonly used technique for power conversion in PCs, for producing the high current low voltage supplies for CPUs. Researchers in the Department of Computer and Electrical Engineering at Queen’s University in Kingston Ontario Canada have developed a high performance Current Source Gate Driver that greatly im...

Published: Jan 4, 2012 | Inventor(s): Yan-Fei Liu, Zhiliang Zhang, Jizhen Fu, Jiahong Wei

Keywords(s):

Category(s): Electronics, Power Electronics

Novel Efficiency Boost Technology for Smart SR Drivers in LLC based DC-DC Converters

Today’s PC and Server power supplies employ 400VDC à 12VDC LLC power converters which typically have 91-92% efficiencies when using standard schottky diodes for rectification. Using MOSFETs as synchronous rectifiers increases efficiency to 94-95% due mainly to their very low ON resistance. Researchers in the Department of Electrical Engineerin...

Published: Mar 31, 2010 | Inventor(s): Yan-Fei Liu, Dong Wang

Keywords(s):

Category(s): Electronics, Power Electronics

Low Cost Single Stage Dimmable Electronic Ballast for Compact Fluorescent Lamps

(A PDF with additional information may be downloaded here.) There is a global trend to eliminate incandescent bulbs in favor of CFLs due to their higher efficiency and longer lifetime. Most CFLs today for the consumer market are not compatible with standard dimmers, causing major dissatisfaction with consumers. Additionally consumer elect...

Published: Nov 17, 2009 | Inventor(s): Praveen Jain, John C.W. Lam

Keywords(s):

Category(s): Electronics