About 323 results
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https://drivepatents.com/patents/1396991 · 12 Mar 2025
A power conversion device (100_1) included in a self-excited DC power transmission system (400) connected to an AC system (300) includes a self-excited converter (6_1) and a control device (5_1). The control device includes: a storage (207) to store first ...
https://drivepatents.com/patents/938139 · 7 Sep 2016
A DC/DC conversion device that includes three-level power conversion circuits in a plurality of phases. The DC/DC conversion device includes voltage detectors 21 and 22 that detect at least two voltages (Efc and EfcL) of an input DC voltage, a first divide...
https://drivepatents.com/patents/938139 · 7 Sep 2016
A DC/DC conversion device that includes three-level power conversion circuits in a plurality of phases. The DC/DC conversion device includes voltage detectors 21 and 22 that detect at least two voltages (Efc and EfcL) of an input DC voltage, a first divide...
https://drivepatents.com/patents/939164 · 17 Aug 2016
A Si diode is used as a rectifying diode on a transformer secondary side of an isolated DC/DC converter, and a high-voltage Schottky barrier diode made of a wide bandgap semiconductor is used as a free-wheeling diode arranged between a rectifier circuit an...
https://drivepatents.com/patents/940871 · 6 Jul 2016
The invention provides an angular error correction device and an angular error correction method for a position sensor that allow estimating and correcting an angular error accurately. A position sensor detects the rotational position of an electric motor,...
https://drivepatents.com/patents/943079 · 18 May 2016
A headlight unit (100) includes a light source (101), a light guide member (102), a projection lens (103), and a drive unit (112). The light source (101) emits a light beam for irradiating a forward area in a traveling direction. The light guide member (10...
https://drivepatents.com/patents/944524 · 20 Apr 2016
An inter-vehicle communication device of a vehicle 10 provided with an electrical coupler 16 that constructs a communication path with a vehicle 20 by using an electric contact with the vehicle 20, the inter-vehicle communication device comprising: a commu...
https://drivepatents.com/patents/944895 · 13 Apr 2016
The present invention provides an information display device that can display information to be provided to a user without blocking an object being viewed by the user, this display device including: an image input section 1 inputting an image corresponding...
https://drivepatents.com/patents/945379 · 30 Mar 2016
A hybrid drive system includes first and second power supply devices (11 and 21) that supply direct-current power; first and second power storage devices (13 and 23) are respectively connected to the first and second power supply devices so as to accumulat...
https://drivepatents.com/patents/945399 · 30 Mar 2016
A central device 11-1 includes an information replacing unit 8-1. When the information replacing unit 8-1 detects, on the basis of contact information acquired from an electric coupler 16-1 provided in a coupled vehicle in a formation B having a train-info...