Power converter and motor vehicleA power converter includes a DC-DC converter circuit unit configured to step up or step down a voltage of direct current power supplied from a power supply, an inverter circuit unit configured to conv…DRIVE·Sep 2·1 min readFollowB60L53/24YASKAWA DENKI SEISAKUSHO KK [JP]
Motor driving apparatus and vehicleA motor driving apparatus (10, 10a) includes: a motor (3) including a first winding (3a) and a second winding (3a, 3b); a winding switcher (4) configured to switch between connection states of the fir…DRIVE·Mar 11·1 min readFollowB60L50/60YASKAWA DENKI SEISAKUSHO KK [JP]
Grid interconnection apparatusA grid interconnection apparatus 1 includes a voltage conversion section 11 including DC/DC converters 21a to 21d to step up or down output voltages of DC power sources 2a to 2d. The voltage conversio…DRIVE·Oct 29·2 min readFollowH02J3/381YASKAWA DENKI SEISAKUSHO KK [JP]
MOTOR DRIVE DEVICE AND VEHICLEA motor drive device (10) includes a motor (3) including a high-speed drive winding (3a) and a low-speed drive winding (3b), a winding switching portion (4) switching the connection states of the high…DRIVE·Aug 6·1 min readFollowB60L50/50YASKAWA DENKI SEISAKUSHO KK [JP]
MATRIX CONVERTER DEVICE FOR WIND-POWER ELECTRICITY-GENERATION, WIND-POWER ELECTRICITY-GENERATION DEVICE, WIND FARM, AND WIND TURBINE MANUFACTURING METHODA matrix converter apparatus for wind-power generation according to an embodiment includes a matrix converter and a controller. The matrix converter is controlled by the controller so as to fully conv…DRIVE·Dec 25·1 min readFollowF03D7/0272YASKAWA DENKI SEISAKUSHO KK [JP]
Power conversion apparatusA power conversion apparatus (10) according to an embodiment includes a cooling jacket (21). The cooling jacket (21) includes a mounting face on which a power module (11c) including a power semiconduc…DRIVE·Nov 13·1 min readFollowB60L15/007YASKAWA DENKI SEISAKUSHO KK [JP]
Series-connected multi-level power conversion deviceA series-connected multi-level power conversion device (1, 1A, 1B) according to an aspect of embodiments includes a multi-winding transformer (10) and a power conversion unit (20). The multi-winding t…DRIVE·May 1·1 min readFollowH02M7/4835YASKAWA DENKI SEISAKUSHO KK [JP]
Charging apparatusA charging apparatus holding an added value besides a charging function is provided. The charging apparatus 10 for charging electric power supplied from a power source to a charging target includes a …DRIVE·Jul 18·1 min readFollowB60L53/305YASKAWA DENKI SEISAKUSHO KK [JP]
Charging apparatus and operating toolA charging apparatus holding an added value besides a charging function is provided. The charging apparatus 10 for charging electric power supplied from a power source to a charging target includes an…DRIVE·Jul 18·1 min readFollowB60L53/31YASKAWA DENKI SEISAKUSHO KK [JP]
Three-level inverter, power conditioner, and power generating systemA three-level inverter includes a set of series-connected capacitors connected in parallel to a direct-current power supply; two arms connected in parallel to an output of the direct-current power sup…DRIVE·Jan 4·2 min readFollowH02J3/381YASKAWA DENKI SEISAKUSHO KK [JP]
Permanent magnet rotor of an electrical machineA rotor includes a rotor core; and first permanent magnets and second permanent magnets arranged in the rotor core so that, on a cross-sectional plane of the rotor core perpendicular to the rotation a…DRIVE·Jul 20·2 min readFollowB60K6/26YASKAWA DENKI SEISAKUSHO KK [JP]
BOOM POSITIONING DEVICE FOR HIGH-POSITION WORKINGA boom positioning device for high-position working, capable of ensuring a desired positional accuracy even in positioning a work location at the tip end of a boom from a distant place, the device com…DRIVE·Oct 30·2 min readFollowB60M1/28YASKAWA DENKI SEISAKUSHO KK [JP]
DYNAMIC BRAKE CIRCUIT AND SEMICONDUCTOR INVERTER USING DYNAMIC BRAKE CIRCUITThe invention prevents a voltage change dv/dt of an inverter from directly causing an erroneous firing of a semiconductor brake switch, which may short-circuit the inverter during operation. To brake …DRIVE·Dec 12·2 min readFollowB60L7/003YASKAWA DENKI SEISAKUSHO KK [JP]
