Rectifier circuit
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United States of America Patent
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Oct 28, 2014
Grant Date -
Dec 26, 2013
app pub date -
Feb 28, 2013
filing date -
Jun 22, 2012
priority date (Note) -
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Abstract
A rectifier circuit has a rectifier element and a unipolar field-effect transistor connected in series between a first terminal and a second terminal. The rectifier element comprises a first electrode and a second electrode disposed in a direction of a forward current flowing from the first terminal to the second terminal. The field-effect transistor has a gate electrode having a potential identical to a potential at the first electrode, and a source electrode and a drain electrode connected in series to the rectifier element and passing a current depending on the potential at the gate electrode. A breakdown voltage between the gate electrode and drain electrode of the field-effect transistor in a reverse bias mode, where a potential at the second terminal is higher than a potential at the first terminal, being set higher than a breakdown voltage of the rectifier element.
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