About 325 results
Showing the first 200 results.
https://drivepatents.com/patents/993400 · 30 Jan 2013
A data transmission device 40 includes a data collection unit 47 that collects a plurality of types of data including data from a power conditioner 20 that converts direct-current power generated by a solar battery 10 into alternating-current power, a data...
https://drivepatents.com/patents/993732 · 23 Jan 2013
The purpose of the present invention is to obtain a power converter that can further improve the maintainability after the power converter is stopped without reducing the power conversion efficiency when the power converter is operating. The power converte...
https://drivepatents.com/patents/993875 · 16 Jan 2013
A power semiconductor module includes an element pair 26 formed by connecting, in anti-parallel to each other, an IGBT 25 and an FWD group 24 in which an FWD 24a, a voltage drop characteristic of which during conduction has a negative temperature coefficie...
https://drivepatents.com/patents/994189 · 9 Jan 2013
When a continuous short-circuit occurs between both terminals of a battery pack, there is a possibility of a failure, destruction and rupture of the battery due to heating; thus, flowing of electricity needs to be immediately interrupted. Further, a proble...
https://drivepatents.com/patents/994421 · 2 Jan 2013
The purpose of the present invention is to obtain a power converter that can further improve the maintainability after the power converter is stopped without reducing the power conversion efficiency when the power converter is operating. The power converte...
https://drivepatents.com/patents/995076 · 19 Dec 2012
The present application relates to a train-of-vehicle travel support device comprising: a reference data distribution device (15) adapted to distribute reference data including a three-dimensional position and data of a shape of a road surface; a preceding...
https://drivepatents.com/patents/995832 · 28 Nov 2012
The present invention reduces the operation frequency of electromagnetic valves in an air brake device of a train containing a motor car. A necessary brake force acquisition unit (12) acquires the necessary brake force necessary for each car or flatcar of ...
https://drivepatents.com/patents/995826 · 28 Nov 2012
A power semiconductor module applied to a power converting apparatus for a railway car includes an element pair 62 formed by connecting an IGBT and an SiC-FWD in anti-parallel to each other and an element pair 64 formed by connecting an Si-IGBT and an SiC-...
https://drivepatents.com/patents/996285 · 7 Nov 2012
To include a power converter 2 that drives an induction machine 1 and a control unit 5 that controls the power converter 2. The control unit 5 includes a drive stopping unit 10. The drive stopping unit 10 includes a secondary-resistance-temperature detecti...
https://drivepatents.com/patents/996283 · 7 Nov 2012
An AC motor drive control device including: an inverter INV, having a plurality of switching elements subjected to on-off control, for converting a DC voltage to an AC voltage with a desired frequency to drive an AC motor 6; a motor opening contactor MMK c...