News Column

Researchers Submit Patent Application, "Control System for Semiconductor Switches", for Approval

September 3, 2014



By a News Reporter-Staff News Editor at Electronics Newsweekly -- From Washington, D.C., VerticalNews journalists report that a patent application by the inventors TALJA, Markku (Jarvenpaa, FI); Kankkunen, Jari (Helsinki, FI), filed on February 14, 2014, was made available online on August 21, 2014.

The patent's assignee is ABB Oy.

News editors obtained the following quote from the background information supplied by the inventors: "It is known to protect semiconductor switches against overheating by using protection based on a thermal model, calculated over a time domain of, for example, approximately 0.5 ms. In a known semiconductor switch configuration, the temperature rise of a semiconductor component unit can be calculated on the basis of a thermal model by taking into account the temperature time constant of the semiconductor component unit, and by using a temperature sensor placed adjacent the semiconductor component unit.

"Protection based on a thermal model does not detect a large switching frequency burst that high current creates."

As a supplement to the background information on this patent application, VerticalNews correspondents also obtained the inventors' summary information for this patent application: "A control system is disclosed for at least one semiconductor component including at least one semiconductor switch, the control system comprising: a processor configured to calculate an estimate of an instantaneous dissipation power of at least one semiconductor component unit during an analysis period, the instantaneous dissipation power including conduction losses and switching losses of the at least one semiconductor component unit.

"A semiconductor switch configuration, comprising: at least one semiconductor component unit, the at least one semiconductor component unit including at least one semiconductor switch; and a processor configured to calculate an estimate of an instantaneous dissipation power of the at least one semiconductor component unit during an analysis period, the instantaneous dissipation power including conduction losses and switching losses of the at least one semiconductor component unit.

BRIEF DESCRIPTION OF THE DRAWINGS

"The disclosure is now described in greater detail in connection with the exemplary embodiments and with reference to the drawings, wherein:

"FIG. 1 shows a semiconductor switch configuration including a control system according to an exemplary embodiment of the disclosure."

For additional information on this patent application, see: TALJA, Markku; Kankkunen, Jari. Control System for Semiconductor Switches. Filed February 14, 2014 and posted August 21, 2014. Patent URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.html&r=3869&p=78&f=G&l=50&d=PG01&S1=20140814.PD.&OS=PD/20140814&RS=PD/20140814

Keywords for this news article include: ABB Oy, Electronics, Semiconductor.

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Source: Electronics Newsweekly


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