公开(公告)号：US20190100406A1

公开(公告)日：2019-04-04

申请号：US16082127

申请日：2017-03-03

Applicant: OTIS ELEVATOR COMPANY

Inventor： David Ginsberg ,  Suman Dwari ,  Xin Wu

IPC: B66B1/34

Abstract: An elevator system includes an elevator car (28) disposed in and constructed and arranged to move along a hoistway (26) generally defined by a stationary structure. A short-range communication system of the elevator system is configured to provide communication between the elevator car and the stationary structure, and may include a transceiver (62, 64) carried by the elevator car and a plurality of transceivers (66) spaced along the hoistway. A network coordinator (68) of the communication system is operatively coupled to the plurality of hoistway transceivers to provide uninterrupted communication.

公开(公告)号：US20160079904A1

公开(公告)日：2016-03-17

申请号：US14785023

申请日：2013-04-17

Applicant: OTIS ELEVATOR COMPANY

Inventor： Shashank Krishnamurthy ,  Xin Wu ,  William A. Veronesi ,  Kyle W. Rogers ,  Daryl J. Marvin

IPC: H02P27/06 ,  B66B1/46 ,  B66B11/04 ,  H03K17/081 ,  H03K17/16

CPC classification number: H02P27/06 ,  B66B1/46 ,  B66B11/04 ,  H02M1/08 ,  H03K17/08104 ,  H03K17/08116 ,  H03K17/08142 ,  H03K17/122 ,  H03K17/162 ,  H03K17/163 ,  H03K17/164 ,  H03K17/168 ,  Y02B70/1483

Abstract: A switching assembly for use in a drive unit for driving a motor. The switching assembly includes a gallium nitride switch having a gate terminal, drain terminal and source terminal; a gate driver generating a drive signal; a gate drive circuit including a turn on resistor in series with the gate driver and the gate terminal and a clamping circuit connected across the gate terminal and the source terminal, a turn on drive signal from the gate driver being applied to the gate terminal through the turn on resistor; and a snubber circuit connected across the drain terminal and source terminal.

Abstract translation: 一种用于驱动电动机的驱动单元的开关组件。 开关组件包括具有栅极端子，漏极端子和源极端子的氮化镓开关; 产生驱动信号的栅极驱动器; 栅极驱动电路，其包括与栅极驱动器和栅极端子串联的导通电阻器和连接在栅极端子和源极端子之间的钳位电路，来自栅极驱动器的导通驱动信号通过该栅极驱动器施加到栅极端子 打开电阻; 以及连接在漏极端子和源极端子之间的缓冲电路。

公开(公告)号：US11840423B2

公开(公告)日：2023-12-12

申请号：US16713979

申请日：2019-12-13

Applicant: Otis Elevator Company

Inventor： Suman Dwari ,  Stephen Savulak ,  Enrico Manes ,  Ronnie E. Thebeau ,  Xin Wu

IPC: H04L12/931 ,  H04L29/08 ,  B66B11/02 ,  H02J7/34 ,  H02J50/12

CPC classification number: B66B11/0226 ,  H02J7/345 ,  H02J50/12 ,  H02J2207/20

Abstract: A hybrid energy storage system for an elevator car includes a converter disposed on the elevator car and receives power from a power source and provides a first DC voltage to a first DC bus and a second DC voltage to a second DC bus, a first energy storage device connected to the converter receives the first DC voltage on the first DC bus, and a second energy storage device connected to the converter receives the second DC voltage on the second DC bus. The system also includes a first load connected to the first DC bus and a second DC bus, and a second load connected to the second DC bus. Power is provided from the first energy storage device to the first load under a first selected condition and power is supplied from the second energy storage device to the first load under second selected condition.

公开(公告)号：US10366935B2

公开(公告)日：2019-07-30

申请号：US14782377

申请日：2013-04-09

Applicant: OTIS ELEVATOR COMPANY

Inventor： Shashank Krishnamurthy ,  Xin Wu ,  William A. Veronesi ,  Kyle W. Rogers ,  Daryl J. Marvin

IPC: H01L23/495 ,  H01L23/552 ,  H05K1/16 ,  H01L23/367 ,  H02M7/00 ,  H01L25/07 ,  H01L29/20 ,  H02K9/22 ,  H05K1/02 ,  H05K1/11 ,  H05K1/18 ,  H03K17/0412 ,  H02K11/33

Abstract: A drive unit for a motor includes a printed circuit board (PCB); a first gallium nitride switch having a gate, the first gallium nitride switch mounted to the PCB; a second gallium nitride switch having a gate, the second gallium nitride switch mounted to the PCB; a gate driver generating a turn-off drive signal to turn off the first gallium nitride switch and turn off the second gallium nitride switch; a first turn-off trace on the PCB, the first turn-off trace directing the turn-off drive signal to the gate of the first gallium nitride switch; and a second turn-off trace on the PCB, the second turn-off trace directing the turn-off drive signal to the gate of the second gallium nitride switch; wherein an impedance of the first turn-off trace is substantially equal to an impedance of the second turn-off trace.

公开(公告)号：US20160043616A1

公开(公告)日：2016-02-11

申请号：US14782377

申请日：2013-04-09

Applicant: OTIS ELEVATOR COMPANY

Inventor： Shashank Krishnamurthy ,  Xin Wu ,  William A. Veronesi ,  Kyle W. Rogers ,  Daryl J. Marvin

IPC: H02K11/00 ,  H01L25/07 ,  H02K9/22 ,  H05K1/02 ,  H05K1/11 ,  H05K1/18 ,  H01L29/20 ,  H01L23/367

CPC classification number: H01L23/3675 ,  H01L25/072 ,  H01L29/2003 ,  H01L2924/0002 ,  H02K9/22 ,  H02K11/33 ,  H02M7/003 ,  H03K17/04123 ,  H03K2217/0036 ,  H05K1/0206 ,  H05K1/025 ,  H05K1/0251 ,  H05K1/112 ,  H05K1/115 ,  H05K1/18 ,  H05K2201/10166 ,  H05K2201/10416 ,  Y02B70/1483 ,  H01L2924/00

Abstract: A drive unit for a motor includes a printed circuit board (PCB); a first gallium nitride switch having a gate, the first gallium nitride switch mounted to the PCB; a second gallium nitride switch having a gate, the second gallium nitride switch mounted to the PCB; a gate driver generating a turn-off drive signal to turn off the first gallium nitride switch and turn off the second gallium nitride switch; a first turn-off trace on the PCB, the first turn-off trace directing the turn-off drive signal to the gate of the first gallium nitride switch; and a second turn-off trace on the PCB, the second turn-off trace directing the turn-off drive signal to the gate of the second gallium nitride switch; wherein an impedance of the first turn-off trace is substantially equal to an impedance of the second turn-off trace.

Abstract translation: 电动机的驱动单元包括印刷电路板（PCB）; 具有栅极的第一氮化镓开关，所述第一氮化镓开关安装到所述PCB; 具有栅极的第二氮化镓开关，所述第二氮化镓开关安装到所述PCB; 产生关闭驱动信号的栅极驱动器，以关闭第一氮化镓开关并关闭第二氮化镓开关; PCB上的第一关断迹线，第一截止迹线将关断驱动信号引导到第一氮化镓开关的栅极; 和PCB上的第二截止迹线，第二截止迹线将关断驱动信号引导到第二氮化镓开关的栅极; 其中所述第一截止迹线的阻抗基本上等于所述第二截止迹线的阻抗。

公开(公告)号：US11345567B2

公开(公告)日：2022-05-31

申请号：US16082127

申请日：2017-03-03

Applicant: OTIS ELEVATOR COMPANY

Inventor： David Ginsberg ,  Suman Dwari ,  Xin Wu

IPC: B66B1/34

Abstract: An elevator system includes an elevator car (28) disposed in and constructed and arranged to move along a hoistway (26) generally defined by a stationary structure. A short-range communication system of the elevator system is configured to provide communication between the elevator car and the stationary structure, and may include a transceiver (62, 64) carried by the elevator car and a plurality of transceivers (66) spaced along the hoistway. A network coordinator (68) of the communication system is operatively coupled to the plurality of hoistway transceivers to provide uninterrupted communication.