About 13 results
https://drivepatents.com/patents/949196 · 2 Sep 2015
A power converter includes a DC-DC converter circuit unit configured to step up or step down a voltage of direct current power supplied from a power supply, an inverter circuit unit configured to convert direct current power supplied from the power supply ...
https://drivepatents.com/patents/951928 · 11 Mar 2015
A motor driving apparatus (10, 10a) includes: a motor (3) including a first winding (3a) and a second winding (3a, 3b); a winding switcher (4) configured to switch between connection states of the first winding and the second winding of the motor; and a po...
https://drivepatents.com/patents/967942 · 29 Oct 2014
A grid interconnection apparatus 1 includes a voltage conversion section 11 including DC/DC converters 21a to 21d to step up or down output voltages of DC power sources 2a to 2d. The voltage conversion section 11 combines DC power outputs from the DC/DC co...
https://drivepatents.com/patents/971731 · 6 Aug 2014
A motor drive device (10) includes a motor (3) including a high-speed drive winding (3a) and a low-speed drive winding (3b), a winding switching portion (4) switching the connection states of the high-speed drive winding and the low-speed drive winding of ...
https://drivepatents.com/patents/980557 · 25 Dec 2013
A matrix converter apparatus for wind-power generation according to an embodiment includes a matrix converter and a controller. The matrix converter is controlled by the controller so as to fully convert electric power generated in a generator by rotating ...
https://drivepatents.com/patents/981983 · 13 Nov 2013
A power conversion apparatus (10) according to an embodiment includes a cooling jacket (21). The cooling jacket (21) includes a mounting face on which a power module (11c) including a power semiconductor device is mounted, a plurality of radiation fins (21...
https://drivepatents.com/patents/991181 · 1 May 2013
A series-connected multi-level power conversion device (1, 1A, 1B) according to an aspect of embodiments includes a multi-winding transformer (10) and a power conversion unit (20). The multi-winding transformer (10) has a relationship that n secondary wind...
https://drivepatents.com/patents/1000241 · 18 Jul 2012
A charging apparatus holding an added value besides a charging function is provided. The charging apparatus 10 for charging electric power supplied from a power source to a charging target includes an operating tool 50 configured to operate charging to the...
https://drivepatents.com/patents/1000212 · 18 Jul 2012
A charging apparatus holding an added value besides a charging function is provided. The charging apparatus 10 for charging electric power supplied from a power source to a charging target includes a station section 30 configured to supply the electric pow...
https://drivepatents.com/patents/1006436 · 4 Jan 2012
A three-level inverter includes a set of series-connected capacitors connected in parallel to a direct-current power supply; two arms connected in parallel to an output of the direct-current power supply and each having an alternating-current output termin...