About 170 results
https://drivepatents.com/patents/949995 · 22 Jul 2015
In the present invention, the connection between an external power supply and a unit for detecting welding of a relay is disestablished at least when a short circuit is detected, thereby preventing the short circuit from being falsely detected in the event...
https://drivepatents.com/patents/950139 · 15 Jul 2015
The power transmission coil (10) of a power-supply device (1) and the power-receiving coil (20) of a power-receiving device (2) are configured so as to satisfy the equation (L2/L1)1/2=G/K, where L1 is the self-inductance of the power transmission coil (10)...
https://drivepatents.com/patents/959701 · 24 Jun 2015
A power transmission apparatus oscillates alternating current power at a first frequency (f1) which is lower than a resonant frequency (fr) of the second resonator and at a second frequency (f2) which is higher than the resonant frequency (fr). The power t...
https://drivepatents.com/patents/960124 · 17 Jun 2015
A provided electric vehicle can prevent a significant increase in manufacturing cost and a severe deterioration of performance and safety while satisfactorily using a charging device that conforms to a predetermined standard in CAN communications. The elec...
https://drivepatents.com/patents/960090 · 17 Jun 2015
A contactless power transmission device (1) is provided with: a washstand (10) that includes a primary coil (24); and an electric toothbrush (30) that includes a secondary coil (41), a rectifier circuit (42), and a feed control unit (43). The electric toot...
https://drivepatents.com/patents/960007 · 17 Jun 2015
This wireless charging device is configured such that after charging of a portable terminal by a charging coil (8) is completed, a controller (10) drives motors (28, 33) to move the charging coil (8) to a position where the center of the charging coil devi...
https://drivepatents.com/patents/960362 · 3 Jun 2015
During charging of a mobile device by a charging coil, a charge controller acquires information of the seating position of the owner of the mobile device, through a short-range wireless communicating section, and therefore issues an alarm when a person who...
https://drivepatents.com/patents/960815 · 13 May 2015
A proximity alarm device includes a control unit, an amplifying unit, an output terminal, a ground terminal, a detection unit, and a determining apparatus. The control unit receives an input of a referencing signal. An output of the control unit is electri...
https://drivepatents.com/patents/960956 · 6 May 2015
A heat pump device for a vehicle, capable of effectively utilizing the heat of structural members. This heat pump device for a vehicle comprises: an electric compressor for compressing and discharging refrigerant; and a high-temperature water-refrigerant h...
https://drivepatents.com/patents/961266 · 29 Apr 2015
The alarm drive circuit according to the present invention includes a control unit, a voltage detection unit to measure a power supply voltage, a temperature detection unit to measure an ambient temperature of a sound generator, and a current detection uni...