Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Frédéric Rothan

Dominique Bergogne

Guy Waltisperger

Adrien Ramond

The present description concerns a component () of high electron mobility type, wherein: electrode connection tracks () are parallel to one another; on the tracks, at least one pair () of current collector regions () extend on either side of a separation () between the regions all the way to two opposite edges () of the regions; and the separation is oblique with respect to the tracks and the two opposite edges are orthogonal to the tracks.

Component with high electron mobility

A device for detecting the polarity of a current or voltage, the detection device including a circuit portion with a detection node configured to produce at the detection node a measurement voltage which is an image of a fraction of the detected current or voltage, and a detection circuit with transistor(s), coupled to the detection node, and provided with amplifier(s), with a comparator transistor having a source gate voltage which depends on the measurement voltage. The comparator transistor further includes a source set at a first fixed potential and a source-gate voltage which depends on the measurement voltage or a gate set at a second fixed potential and a source-gate voltage which depends on the measurement voltage, the detection circuit being configured to compare the measurement potential with a threshold and to output a binary detection signal indicating the polarity of the detected current or voltage.

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Grenoble, France

Frédéric Rothan