The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 16, 2015

Filed:

Jan. 14, 2014
Applicant:

Kabushiki Kaisha Toshiba, Tokyo, JP;

Inventors:

Masatsugu Shoji, Tokyo, JP;

Kenji Kanamaru, Kanagawa, JP;

Masayoshi Takahashi, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 17/687 (2006.01); B23K 11/24 (2006.01); H03K 17/16 (2006.01);
U.S. Cl.
CPC ...
H03K 17/165 (2013.01);
Abstract

A switching circuit includes a plurality of switching elements connected between an input node and an output node and each comprising a first and second electrode connected to the input node and output node, respectively. The switching elements include a control electrode for controlling electrical conductance between the first and second electrodes such the switching element can be switched between an ON conductance state and an OFF conductance state. A detection circuit in the switching circuit outputs a detection value corresponding to an output current at the output node. A control circuit changes the conductance state of at least one switching element such that the summed total of the parasitic capacitances of all switching elements in the ON state decreases as the output current decreases as indicated by the detection value.


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