Patent application number | Description | Published |
20090237904 | Power Converter Apparatus - A power converter apparatus includes a substrate | 09-24-2009 |
20120313184 | SWITCHING CIRCUIT - A switching circuit ( | 12-13-2012 |
20130242631 | POWER CONVERTER APPARATUS - A power converter apparatus includes a first substrate and a second substrate closely arranged to face each other, switching elements mounted on respective mounting surfaces of the first and second substrates, a primary and a secondary bus bars extending between the first and second substrates, an output terminal electrically connected to the primary bus bar, and two input terminals provided on the second substrate. The direction in which current flows into the first substrate and the direction in which current flows into the second substrate via the input and the output terminals are opposite to each other, and the direction in which the current flows into the primary bus bar and a direction in which the current flows into the secondary bus bar are opposite to each other. | 09-19-2013 |
20140015452 | INVERTER DEVICE - An inverter device includes a substrate, upper arm elements, lower arm elements, positive and negative input electrodes, and an output electrode. The upper arm elements serve as an upper switching element and are arranged along a first direction. The lower arm elements serve as a lower arm switching element and are arranged along the first direction. At least one of bus bars of the positive and negative input electrodes and the output electrode extends parallel to the first direction. At least one of the bus bars of the positive and negative input electrodes and the output electrode has a length in the longitudinal direction that is greater than a width between two ends of the upper arm elements and the lower arm elements in the first direction. | 01-16-2014 |
20140015461 | INVERTER - An inverter includes a warm-up control section and a switching control section. In a state in which an electric motor is not operating, the warm-up control section controls switching elements of an inverter circuit to perform warm-up control, in which direct currents are supplied to the coils of the respective phases of the electric motor, when the temperature of the capacitor is lower than a prescribed temperature. When a warm-up control is switched to a normal operation control, the switching control section sets initial phases of alternating currents such that the relationship between the values of the alternating currents supplied to the coils of the electric motor in the normal operation control matches with the relationship between the values of the direct currents that have been supplied to the corresponding coils of the electric motor in the warm-up control. | 01-16-2014 |
20150206860 | Semiconductor Device - A plurality of arm elements is arrayed along a first direction of a substrate. Each arm element includes a plurality of semiconductor elements connected in parallel. Each arm element is configured such that a plurality of semiconductor elements is arrayed along a second direction of the substrate which is perpendicular to the first direction and separated into a first element group and a second element group. The substrate includes a first region where the semiconductor element included in the first element group is arranged and a second region where the semiconductor element included in the second element group is arranged, and the first region and the second region are separated along the second direction. An input electrode unit and an output electrode unit are arranged along the first direction in a region provided between the first region and the second region on the substrate. | 07-23-2015 |
20150295490 | INVERTER DEVICE - An inverter device includes an inverter circuit, which has switching elements in a bridge connection, a capacitor, which is connected in parallel to the input side of the inverter circuit, a control device, which controls the inverter circuit, a temperature detector, which detects the temperature of the capacitor, a degree-of-deterioration determiner, which determines the degree of deterioration of the capacitor, and a warm-up controller. When the temperature of the capacitor detected by the temperature detector is lower than a prescribed temperature, the warm-up controller controls the switching elements of the inverter circuit to supply a direct current set based on the degree of deterioration and the temperature of the capacitor to the coil of an electric motor connected to the output side of the inverter circuit. | 10-15-2015 |