(Bipolar Junction) Transistors versus MOSFETs: both have their obvious niches. FETs are great for relatively high power applications because they have such a low on-resistance, but transistors are often easier to drive from low voltage microcontrollers because all they require is a current. It’s uncanny, though, how often we find ourselves in the middle between these extremes. What we’d really love is a part that has the virtues of both.
Abstract: An integrated circuit with a metal thin film resistor with an overlying etch stop layer. A process for forming a metal thin film resistor in an integrated circuit with the addition of one lithography step.
Inventor(s): Koichiro Yoshimoto (Irving, TX) Assignee(s): Littlefuse, Inc. (Chicago, IL) Law Firm: No Counsel Application No., Date, Speed: 15406065 on 01/13/2017 (725 days app to issue)
Klein Tools introduces Padded Leather Quick-Release Belts, which combine comfort and safety with extra cushion for all-day use. Several models from Klein’s battery-operated tool product line now feature 4-amp-hour DeWALT® lithium-ion batteries, helping line crews get the job done with greater efficiency.
Inventor(s): Giovanni Frattini (Travaco Siccomario, IT), Maurizio Granato (Milan, IT), Roberto Massolini (Pavia, ,IT) Assignee(s): Texas Instruments Incorporated (Dallas, TX) Law Firm: No Counsel Application No., Date, Speed: 15089752 on 04/04/2016 (1009 days app to issue)
Any really significant power switching is going to require a significant gate drive at say 10-12V or so. Even if the gate-source threshold voltage is small enough for the microcontroller, running the gate right down at the threshold will give high resistance – not good for high power jobs.
Related Brookfield companies went on a billion-dollar buying spree for energy assets last year: Brookfield Infrastructure paid $4.3 billion for Enbridge's western Canada pipelines and processing plants and $4.3 billion for heating and cooling service firm Enercare.
Inventor(s): Felix Bednar (Laval, CA), Jacques Dionne (Saint-Andr-d”Argenteuil, CA), Richard Gingras (Montreal, CA), Sylvain Tessier (Fassett, CA) Assignee(s): Bell Helicopter Textron Inc. (Fort Worth, TX) Law Firm: No Counsel Application No., Date, Speed: 15264410 on 09/13/2016 (847 days app to issue)
Dallas Invents is a weekly look at U.S. patents granted with a connection to the Dallas-Fort Worth-Arlington metro area. Listings include patents granted to local assignees and/or those with a North Texas inventor. Patent activity can be an indicator of future economic growth, as well as the development of emerging markets and talent attraction. By tracking both inventors and assignees in the region, we aim to provide a broader view of the region’s inventive activity. Listings are organized by Cooperative Patent Classification (CPC).
Inventor(s): Jennifer Hendrix (Waxahachie, TX) Assignee(s): UNASSIGNED Law Firm: Law Office of Jeff Williams PLLC (Local + 690 other metros) Application No., Date, Speed: 15410410 on 01/19/2017 (719 days app to issue)
With the addition of the resistor, this becomes a much more difficult equation and we can't just "guess" a solution. However, it shouldn't be too difficult to modify our numerical calculation above to solve this problem. Really, the only thing that changes is the line in which the second derivative of the charge is calculated. I have added a term in there to account for the resistance (but not the First Order). Using a resistance of 3 Ohms, I get the following (again, press play to run it).
Abstract: A person can use a portable electronic device to electronically purchase or otherwise request a product, service or other deliverable related to audio programming to which the person is listening at the time they initiate the request. The request is fulfilled by a service that analyzes the audio content to identify the deliverable the person desires.
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