About 134 results
https://drivepatents.com/patents/1005669 · 1 Feb 2012
The device has an alternate current (AC) current engine connected to an external voltage network (11). An inverter (2) is connected to phases of the engine. A commutation unit (4) is integrated with the inverter, where the commutation unit authorizes suppl...
https://drivepatents.com/patents/1007210 · 14 Dec 2011
A power conversion device according to the present invention includes: a power module (300) that converts DC power into AC power and supplies the AC power to a motor; an electronic circuit board (22), placed above the power module (300), that drives the po...
https://drivepatents.com/patents/1008330 · 26 Oct 2011
A switch (82) sets the voltage level of a control line (81) to a first level corresponding to a first voltage by electrically coupling the control line (81) with a first node (85) when manual operation is not executed. The switch (82) sets the voltage leve...
https://drivepatents.com/patents/1008887 · 5 Oct 2011
A DC to three-phase AC inverter system includes a three-phase motor, an inverter circuit, switching elements, a capacitor, a DC power source and a control circuit. The DC power source is connected to the three-phase motor at a neutral point thereof. The co...
https://drivepatents.com/patents/1010846 · 27 Jul 2011
A rotating electric machine includes a stator having a stator coil and a rotor provided rotatably around a specific rotation axis with respect to the stator. The rotor includes a plurality of magnets, a plurality of magnetically-assisted salient pole membe...
https://drivepatents.com/patents/1011148 · 13 Jul 2011
A voltage command generation unit (240) generates a voltage command value (Vd#, Vq#), based on a current deviation (Id, Iq) relative to a current command value (Idcom, Iqcom). A dq-axis voltage filter (300) generates a voltage command value (Vdf, Vqf) subj...
https://drivepatents.com/patents/1011788 · 22 Jun 2011
Connection portions (225UP through 225W) to which upper arm control terminals (320UU through 320UW) are connected are disposed at a first edge portion of a drive circuit board (22). And connection portions (225sun through 225WN to which lower arm control t...
https://drivepatents.com/patents/1012804 · 25 May 2011
The present invention relates to a permanent magnet type rotating electrical machine comprising: a stator (10); and a rotor (20) disposed opposite to said stator (10) with a gap (30) left therebetween, said stator (10) comprising: a stator core (11); and s...
https://drivepatents.com/patents/1014611 · 30 Mar 2011
A two-wheeled electric scooter principally powered by batteries, which together provide more than 100 volts. The scooter carries an onboard recharging system to replenish the battery supply. Accordingly, the onboard recharging system is not called upon to ...
https://drivepatents.com/patents/1066959 · 31 May 2006
A control device (30) calculates a voltage command value of a voltage step-up converter (12) based on a torque command value (TR1 (or TR2)) and a motor revolution number (MRN1 (or MRN2)) and calculates the on-duty (D_ON_1) of an NPN transistor (Q1) based o...