About 161 results
https://drivepatents.com/patents/938202 · 7 Sep 2016
A controller of a mobile terminal charging device compares a resonance frequency or a resonance voltage of each of a plurality of foreign object detection coils with a reference resonance frequency or a reference resonance voltage of each foreign object de...
https://drivepatents.com/patents/938123 · 7 Sep 2016
An objective is to detect a malfunction in a switch provided in an electric vehicle and give a notification about occurrence of the malfunction. A power conversion system (10) includes a detection circuit (32). The detection circuit (32) includes a measure...
https://drivepatents.com/patents/938202 · 7 Sep 2016
A controller of a mobile terminal charging device compares a resonance frequency or a resonance voltage of each of a plurality of foreign object detection coils with a reference resonance frequency or a reference resonance voltage of each foreign object de...
https://drivepatents.com/patents/938123 · 7 Sep 2016
An objective is to detect a malfunction in a switch provided in an electric vehicle and give a notification about occurrence of the malfunction. A power conversion system (10) includes a detection circuit (32). The detection circuit (32) includes a measure...
https://drivepatents.com/patents/938449 · 31 Aug 2016
In a case where a mobile terminal charging device stops charging due to a decrease of charging efficiency, the cause thereof is, for example, that the mobile terminal is slightly moved on the upper surface of the installation plate, due to the vibration an...
https://drivepatents.com/patents/938449 · 31 Aug 2016
In a case where a mobile terminal charging device stops charging due to a decrease of charging efficiency, the cause thereof is, for example, that the mobile terminal is slightly moved on the upper surface of the installation plate, due to the vibration an...
https://drivepatents.com/patents/938768 · 24 Aug 2016
A microphone structure has a diaphragm; a frame of which an inside is processed in a shape of a semispherical surface, a parabolic surface, or a conical surface; an acoustic transducer that converts sound pressure into an electric signal; and a wire that t...
https://drivepatents.com/patents/938746 · 24 Aug 2016
An operating panel device includes an operating ring, and a display device which is disposed to face a back surface of the operating ring. The display device includes a first portion, a second portion, and a third portion. The first portion is located insi...
https://drivepatents.com/patents/939158 · 17 Aug 2016
The purpose of the present invention is to provide a contactless charging device which reduces magnetic field leaking from an air gap between a primary coil and a secondary coil so as to suppress radiation noise in contactless electrical power transmission...
https://drivepatents.com/patents/939789 · 3 Aug 2016
Provided is a wireless power transmission device that detects an abnormality of, for example, a secondary coil and a rectifier unit independently of wireless communication and can quickly shift to a safe operation. This device comprises: a ground-side coil...