公开(公告)号：US09537434B2

公开(公告)日：2017-01-03

申请号：US14698336

申请日：2015-04-28

Applicant: Delta Electronics, Inc.

Inventor： Chia-Pin Wei ,  Wei-Shuo Tseng

IPC: H02P27/00 ,  H02P6/00 ,  H02P6/16 ,  F04D25/06 ,  H02M3/156 ,  H02M3/335 ,  H02M1/00

CPC classification number: H02P6/28 ,  F04D25/06 ,  H02M3/156 ,  H02M3/33507 ,  H02M3/33553 ,  H02M3/33561 ,  H02M2001/0006 ,  H02M2001/009 ,  H02P6/16

Abstract: A DC electric fan receiving a first direct current voltage is provided. The DC electric fan includes a motor, a fan blade, a voltage converting device and a motor controller. The motor is directly driven by the first direct current voltage. The fan blade is connected to the motor and rotated by the driving of the motor. The voltage converting device receives and converts the first direct current voltages to a second direct current voltage, wherein the magnitude of the first direct current voltages is larger than the magnitude of the second direct current voltage. The motor controller receives the second direct current voltages to control a rotation direction of the motor, wherein the motor controller is not powered by the first direct current voltage and the first direct current voltage is a fixed direct current voltage.

Abstract translation: 提供接收第一直流电压的直流电风扇。 直流电风扇包括电动机，风扇叶片，电压转换装置和电动机控制器。 电机由第一直流电压直接驱动。 风扇叶片通过电机的驱动连接到电机并旋转。 电压转换装置接收并将第一直流电压转换为第二直流电压，其中第一直流电压的大小大于第二直流电压的大小。 电动机控制器接收第二直流电压以控制电动机的旋转方向，其中电动机控制器不由第一直流电压供电，并且第一直流电压是固定的直流电压。

公开(公告)号：US10153721B2

公开(公告)日：2018-12-11

申请号：US15370345

申请日：2016-12-06

Applicant: DELTA ELECTRONICS, INC.

Inventor： Wei-Shuo Tseng ,  Chao-Chin Chuang ,  Yao-Yang Yu ,  Li-Wei Hsiao

IPC: H02P29/10 ,  H02P6/14 ,  H02P27/06 ,  H02M1/32 ,  H02P6/28 ,  H02M1/42 ,  H02M1/00

Abstract: An electronically commutated fan system includes an alternating-current-to-direct-current conversion unit, an inverter unit and a control unit. The alternating-current-to-direct-current conversion unit converts an alternating-current input power source into a first direct-current power source. The inverter unit is electrically connected between the alternating-current-to-direct-current conversion unit and a fan. The inverter unit converts the first direct-current power source into an alternating-current output power source and provides the alternating-current output power source to the fan to rotate. The control unit is electrically connected to the alternating-current-to-direct-current conversion unit and the inverter unit. The control unit controls the alternating-current-to-direct-current conversion unit and the inverter unit to adjust a rotational speed of the fan. When the control unit detects a power variation of the alternating-current input power source, the control unit controls the rotational speed of the fan to be maintained within a first error range.

公开(公告)号：US10951154B2

公开(公告)日：2021-03-16

申请号：US16409863

申请日：2019-05-12

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chih-Hung Hsiao ,  Chia-Pin Wei ,  Yu-Wei Lee ,  Wei-Shuo Tseng

IPC: H02P27/14 ,  H02P21/22 ,  H02P23/00 ,  H02M7/5387

Abstract: A motor driving circuit including a first and a second driving signal output circuit is configured to selectively output a six-step square wave driving signal from the first driving signal output circuit, or a space-vector driving signal from the second driving signal output circuit to an inverter to drive a motor according to whether an operating power exceeds a power threshold. The first driving signal output circuit is configured to generate the six-step square wave driving signal. The second driving signal output circuit is configured to generate the space-vector driving signal.

公开(公告)号：US10794388B2

公开(公告)日：2020-10-06

申请号：US16199710

申请日：2018-11-26

Applicant: DELTA ELECTRONICS, INC.

Inventor： Wei-Shuo Tseng ,  Chia-Feng Wu ,  Po-Hui Shen ,  Chia-Huang Wu ,  Chun-Chieh Tsai ,  Wen-Chih Wang

IPC: F04D27/00 ,  F04D25/06 ,  H05K7/20

Abstract: A fan failure backup apparatus includes a first fan module and a second fan module. When a second control unit of the second fan module realizes that the first fan module is failed through a first control unit of the first fan module, and the second control unit realizes that the second fan module is not failed, the second control unit controls the second fan module to additionally enhance a pressure-flow characteristic of a second fan unit of the second fan module.

公开(公告)号：US10348232B2

公开(公告)日：2019-07-09

申请号：US15689927

申请日：2017-08-29

Applicant: Delta Electronics, Inc.

Inventor： Chih-Hung Hsiao ,  Yu-Wei Lee ,  Wei-Shuo Tseng

IPC: H02P21/18 ,  H02P21/22 ,  H02P21/26 ,  H02P25/03 ,  H02P27/08

Abstract: A motor system with a current sensorless control includes a motor, a drive module, and a motor control module. The motor control module controls the motor to rotate through the drive module. The motor control module includes a command generation module, a command conversion module, and an angle generation module. The command generation module generates speed information and transmits the speed information to the angle generation module, and the command generation module generates a voltage command and transmits the voltage command to the command conversion module. The angle generation module generates an electrical angle. The command conversion module converts the voltage command and the electrical angle into a control signal. The motor control module adjusts a phase of a motor input voltage to meet a phase of a motor input current according to the control signal.

公开(公告)号：US11658589B2

公开(公告)日：2023-05-23

申请号：US17474898

申请日：2021-09-14

Applicant: Delta Electronics, Inc.

Inventor： Yu-Wei Lee ,  Shang-Wen Hsu ,  Wei-Shuo Tseng

IPC: H02P6/17 ,  H02P6/28 ,  H02H7/08 ,  G01R19/165 ,  H02P29/024 ,  H02H7/09 ,  H02P6/12 ,  H02H7/093

CPC classification number: H02P6/17 ,  G01R19/16528 ,  H02H7/0833 ,  H02H7/09 ,  H02P6/28 ,  H02P29/027 ,  H02H7/093 ,  H02P6/12

Abstract: An electronically commutated motor driving module for driving a motor includes a voltage detector, an electronically commutated motor driver, a current detector, a voltage converter, and a controller. The voltage detector detects supply voltage to generate a voltage detection signal. The electronically commutated motor driver is supplied by the supply voltage to generate, according to an electronically commutated signal, an operating current for driving the motor. The current detector detects the operating current to generate a current detection signal. The voltage converter converts the supply voltage into an internal voltage. The controller is supplied by the internal voltage and generates the electronically commutated signal according to a plurality of control parameters. When the controller determines that a specific event has happened according to the control parameters, the controller stops generating the electronically commutated signal and then stores the control parameters.

公开(公告)号：US10103676B2

公开(公告)日：2018-10-16

申请号：US15335804

申请日：2016-10-27

Applicant: Delta Electronics, Inc.

Inventor： Wei-Shuo Tseng ,  Chia-Feng Wu ,  Yi-Chieh Cho ,  Yun-Hua Chao ,  Po-Tsun Chen

IPC: H02P3/12 ,  H02P27/08 ,  F04D25/06 ,  F04D27/00 ,  H02P6/08 ,  H02P6/16 ,  H02P6/24

Abstract: A fan motor braking apparatus includes a fan motor, a conversion circuit and a motor driver circuit. The conversion circuit is respectively and electrically connected to the fan motor and the motor driver circuit. The conversion circuit includes bridge structures. After the fan motor starts operating, the motor driver circuit receives at least one fan status signal and determines whether the fan motor braking apparatus enters a braking status or not according to the at least one fan status signal. When the fan motor braking apparatus enters the braking status, the motor driver circuit outputs a braking control signal to the conversion circuit so that the bridge structures of the conversion circuit generate a brake effect on fan motor, wherein the at least one fan status signal includes an external speed-control signal and a transition voltage signal of the fan motor.

公开(公告)号：US09762059B2

公开(公告)日：2017-09-12

申请号：US14711250

申请日：2015-05-13

Applicant: DELTA ELECTRONICS, INC.

Inventor： Wei-Shuo Tseng ,  Chao-Chin Chuang ,  Chih-Hsiang Kuo ,  Yi-Kuan Hsu

IPC: G05F1/70 ,  H02J3/00 ,  H02M7/04 ,  F04D25/06 ,  F04D27/00 ,  H02P27/06 ,  H02M1/10 ,  H02J3/01 ,  H02J4/00 ,  H02M1/42 ,  H02J1/00

CPC classification number: H02J3/005 ,  F04D25/06 ,  F04D25/0613 ,  F04D27/00 ,  F04D27/008 ,  H02J3/01 ,  H02J4/00 ,  H02J2001/002 ,  H02M1/10 ,  H02M1/4225 ,  H02M7/04 ,  H02P27/06 ,  Y02B70/126 ,  Y02E40/40 ,  Y10T307/391

Abstract: A voltage stabilizing module for multi power source input is compatible with multiple input power sources including DC power source and/or AC power source and comprises a plurality of receiving ends, a power source selection unit and a voltage conversion unit. The receiving ends receive the input power sources. The power source selection unit is coupled with the receiving ends to receive the input power sources and sets at least one of the input power sources as a working power source. The voltage conversion unit receives the working power source and keeps the working power source at a working voltage level to act as a voltage signal outputted to a loading.