| 摘要 |
<p>Matrix converter for electrical energy conversion between voltage source(s) (1), notably a feed array, and current source(s) (2), notably a motor, comprises an interrupter array connecting the voltage sources to the current sources. Each interrupter comprises two terminals in two distinct parallel planes and a photoconductive diamond substrate (4) between the terminals. Control of each interrupter is realized by an optical source (7) irradiating the substrate. Preferred Features: The diamond substrate (4) is obtained by a chemical vapor deposition (CVD) process. The terminals are produced by metallization of the diamond substrate (4) by the successive vaporization of titanium, platinum and gold. The optical source (7) is an ultraviolet source. For each interrupter the optical source (7) is located facing one of the two terminals. This terminal comprises at least one opening allowing the passage of radiation from the source (7) towards the substrate (4) interposed between the two terminals. The diamond substrate (4) can be interposed between an assembly of terminals of the interrupter array. Each interrupter is formed of an individual diamond substrate supported on a ceramic substrate, preferably of aluminum nitride (AlN), and is connected to the ceramic substrate via an intermediate glass layer. Each interrupter comprises a terminal connected to a voltage source by a conductive track located on the surface of the ceramic substrate and a terminal connected to a current source by conductive tracks on the opposite surface of the ceramic substrate.</p> |
