About 52 results
https://drivepatents.com/patents/985503 · 20 Mar 2013
The system has a control device (26) controlling short circuit of stator-side terminals (U-W) of a permanent magnet synchronous machine (10). Three disconnectable power semiconductors (T12, T14, T16) of the control device are electrically connected in a st...
https://drivepatents.com/patents/993992 · 16 Jan 2013
There is provided a control system for an electric motor to which electric power is supplied from a DC power supply via a multi-phase inverter, the multi-phase inverter including switch units respectively provided on a positive side and a negative side of ...
https://drivepatents.com/patents/995408 · 5 Dec 2012
An electric power supply device (110) generates electric power having a prescribed frequency. An electric power transfer unit (130, 140, 150) receives electric power from the electric power supply device, and transfers electric power to an electric power r...
https://drivepatents.com/patents/997282 · 10 Oct 2012
A power supply apparatus (16) includes a controller (36). If the controller (36) detects that the internal resistance of a battery (20) detected by an internal resistance detecting unit (28) is relatively high, then the controller (36) switches a first swi...
https://drivepatents.com/patents/998519 · 12 Sep 2012
An inverter apparatus 2 includes a direct-current power supply 4, switching elements S and freewheel diodes D which are connected to the direct-current power supple 4, a means which converts a direct current voltage into a predetermined alternating current...
https://drivepatents.com/patents/999045 · 29 Aug 2012
A universal charging device, the device comprising: a charging pack including at least one of an AC terminal for inputting an AC power, an AC/DC converter for rectifying the AC power to a DC power, a DC terminal for outputting a DC power of a first power v...
https://drivepatents.com/patents/998938 · 29 Aug 2012
To disclose a power converting apparatus for an electric vehicle including a power converter 2 that has switching elements Gu to Gz and drives a synchronous machine 1, an opening/closing unit 4, current detectors 3a to 3c, and a controller 6 that controls ...
https://drivepatents.com/patents/1001457 · 13 Jun 2012
At the time of external charging, an external charging relay (RL1, RL2) is turned on, and a system main relay (SMR1, SMR2) is turned off. Therefore, a main battery (10) can be charged by electric power from an external power source (400), without applying ...
https://drivepatents.com/patents/1001996 · 30 May 2012
A semiconductor element control device that controls a semiconductor element that performs switching operation for converting DC power into AC power, or AC power into DC power, includes: a drive unit that outputs a drive signal for controlling the switchin...
https://drivepatents.com/patents/1003686 · 4 Apr 2012
An inverter device of the present invention includes: an inverter circuit portion that has a plurality of switching elements and that converts direct-current power into alternating-current power; and a temperature detection sensor that detects the temperat...