About 134 results
https://drivepatents.com/patents/963575 · 28 Jan 2015
A power converter includes: a first metal member; a second metal member to be connected to the first metal member to form a space in which a coolant flows; and a heating electric component main body to be housed in a concave portion formed on the first met...
https://drivepatents.com/patents/963515 · 28 Jan 2015
Provided is a method of detecting a state of a power cable of an inverter system. The method includes obtaining a value of a phase current supplied to a motor through the power cable according to a preset period, generating a mobile window having a certain...
https://drivepatents.com/patents/965637 · 31 Dec 2014
A power supply device includes: a first power supply (1a) capable of storing and discharging electric power; a second power supply (2) connected in series to the first power supply (1a) and capable of storing and discharging the electric power; and an isol...
https://drivepatents.com/patents/965899 · 24 Dec 2014
Drive control equipment for a vehicle comprises: a plurality of power conversion devices (14) respectively connected with a plurality of motors (12) that convert DC power supplied from a DC power source (19) to AC power and output this to said motors; a co...
https://drivepatents.com/patents/966151 · 17 Dec 2014
Provided is a bidirectional contactless power supply system having high-efficiency in terms of bidirectional power supply. The bidirectional contactless power supply system is equipped with: first, second, and third power converters (20, 10, 40) provided w...
https://drivepatents.com/patents/966775 · 3 Dec 2014
A control apparatus (30) for a voltage converting apparatus controls a voltage converting apparatus (12) configured to realize one-arm drive by alternatively switching on first and second switching elements (Q1, Q2). The control apparatus for the voltage c...
https://drivepatents.com/patents/966978 · 26 Nov 2014
Provided is a method of detecting a state of a power cable in an inverter system. The method includes detecting a direct current (DC)-link voltage value of a DC-link capacitor included in an inverter, detecting a battery voltage value of a battery supplyin...
https://drivepatents.com/patents/968978 · 8 Oct 2014
The present invention implements a PWM method that allows for an output of zero voltage to the maximum voltage while keeping a predetermined switching frequency and reduces alternating current ripple even if a condition of a low switching frequency. In a r...
https://drivepatents.com/patents/969402 · 1 Oct 2014
The vehicle (12) includes a motor (121) capable of producing motive power for movement; a storage battery (124) capable of supplying electric power to drive the motor (121); and a secondary coil (125) capable of performing wireless transmission of electric...
https://drivepatents.com/patents/969874 · 24 Sep 2014
The invention relates to a power conversion apparatus, comprising: a power semiconductor module 300 that has a power semiconductor element to convert a direct current into an alternating current; a flow channel formation body 12 that forms a flow channel t...