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公开(公告)号：US20180291549A1
公开(公告)日：2018-10-11
申请号：US15866316
申请日：2018-01-09
Applicant: Delta Electronics, Inc.
Inventor： Chin-Hao CHEN , Cheng-Chung LI , Sheng-Hua LI , Yin-Yuan CHEN
Abstract: A method for measuring sensorless brushless-DC motor load, adapted to a home appliance, including: accelerating, through the use of a driving circuit, a BLDC motor from an initial rotational speed to a first rotational speed; disabling, through the use of a control circuit, the driving circuit; obtaining, through the use of a detecting circuit, phase voltage information corresponding to each phase of the BLDC motor when the BLDC motor is decelerated from the first rotational speed to a second rotational speed; obtaining, through the use of the control circuit, a first time period during which the BLDC motor decelerates from the first rotational speed to the second rotational speed according to at least one piece of the phase voltage information; obtaining, through the use of the control circuit, a first predicted weight of a load according to the first time period and a first lookup table.
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2.发明公开公开(公告)号：US20230145202A1
公开(公告)日：2023-05-11
申请号：US17981605
申请日：2022-11-07
Applicant: DELTA ELECTRONICS, INC.
Inventor： Chih-Chia LIAO , Cheng-Chung LI , Wen-Chieh TSAI , Hsieh-Hsiung CHENG
CPC classification number: B60L53/22 , H02P27/06 , B60L53/11 , B60L2210/12
Abstract: A power integration system with motor drive and battery charging and discharging function includes a motor, a power integration circuit, and a battery. The motor includes multi-phase paths, and each path has an inductor. The power integration circuit includes an inverter and a charger. The inverter includes multi-phase bridge arms, each bridge arm has an upper switch and a lower switch, and each bridge is correspondingly coupled to each inductor of the motor. The charger a switch, the upper switch and the lower switch of at least one bridge arm of the shared inverter, and the inductor of the shared motor. The switch is coupled between any two bridge arms. The power integration circuit receives a DC power provided by a DC power apparatus, and the charger converts the DC power to charge the battery, and the battery provides power required to drive the motor through the inverter.
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3.发明公开公开(公告)号：US20230144929A1
公开(公告)日：2023-05-11
申请号：US17981579
申请日：2022-11-07
Applicant: DELTA ELECTRONICS, INC.
Inventor： Chih-Chia LIAO , Cheng-Chung LI , Wen-Chieh TSAI , Hsieh-Hsiung CHENG
IPC: H02J7/00 , H02M7/5387
CPC classification number: H02J7/0068 , H02J7/0063 , H02J7/007182 , H02M7/5387 , B60L50/60 , H02J2207/20
Abstract: A power integration system with motor drive and battery charging and discharging function includes a motor, a power integration circuit, and a battery. The power integration circuit includes an inverter and a charger. The inverter includes multi-phase bridge arms, and each bridge arm has an upper switch and a lower switch. Each bridge arm is correspondingly coupled to each phase winding of the motor. The charger includes a charging unit having at least a switch, an inductor, or a diode and the upper switch and the lower switch of at least one bridge arm of the shared inverter. The power integration circuit receives a DC power provided by a DC power apparatus, and the charger converts the DC power to charge the battery. The battery provides the required power of driving the motor through the inverter.
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公开(公告)号：US20240049366A1
公开(公告)日：2024-02-08
申请号：US18488027
申请日：2023-10-16
Applicant: DELTA ELECTRONICS, INC.
Inventor： Thiam-Wee TAN , Cheng-Chung LI , Chun CHANG , Yu-Min MENG
CPC classification number: H05B6/062 , H05B6/04 , H05B2206/02
Abstract: A heating device includes a first capacitor, a first switch, a second switch, a second capacitor, a third capacitor, a coil and a controller. The first and second switch are coupled in series at a first node, and are coupled with the first capacitor in parallel. The second capacitor is coupled to the first switch. The third capacitor is coupled to the second switch, and is coupled to the second capacitor at a second node. The coil is coupled between the first and the second node. The controller outputs a first and a second control signal to the first switch and the second switch, respectively. After the heating device received a voltage and a starting command, the controller outputs the first and the second control signal to turn on or off the first and the second switch respectively. The duty cycle of the first signal is lower than 50%.
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公开(公告)号：US20230179088A1
公开(公告)日：2023-06-08
申请号：US17582153
申请日：2022-01-24
Applicant: DELTA ELECTRONICS, INC.
Inventor： Yu-Jen LIN , Terng-Wei TSAI , Chia-Hsiong HUANG , Cheng-Chung LI , Chien-Hsi WANG
CPC classification number: H02M1/4216 , H02J7/00308 , H02M3/156 , H02J3/01 , H02J2207/20
Abstract: A power conversion system with ripple injection includes an AC-DC conversion unit, a voltage regulation unit, at least one DC-DC conversion unit, at least one load, and a first control unit. The voltage regulation unit provides a DC link and receives one portion of an input power as an energy storage power. Each DC-DC conversion unit receives the other portion of the input power as an output power. The at least one load correspondingly receives the output power for being supplied power. The first control unit is coupled to the DC link, the at least one DC-DC conversion unit, and the at least one load. The first control unit controls the at least one DC-DC conversion unit to adjust a magnitude of a ripple of the output power to perform a ripple injection operation according to a magnitude of a ripple of the input power.
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Patent Agency Ranking
6.发明公开公开(公告)号：US20230143231A1
公开(公告)日：2023-05-11
申请号：US17981560
申请日：2022-11-07
Applicant: DELTA ELECTRONICS, INC.
Inventor： Chih-Chia LIAO , Cheng-Chung LI , Wen-Chieh TSAI , Hsieh-Hsiung CHENG
CPC classification number: H02J7/1438 , H02J7/007182 , H02J7/34 , H02J2207/20
Abstract: A power integration system with motor drive and battery charging and discharging function includes a motor, a power integration circuit, and a battery. The power integration circuit includes an inverter and a charger. The inverter includes multi-phase bridge arms, and each bridge arm has an upper switch and a lower switch. Each bridge arm is correspondingly coupled to each phase winding of the motor. The charger includes a front-end DC conversion path, and the upper switch and the lower switch of at least one bridge arm of the shared inverter. The battery is coupled to the power integration circuit. The power integration circuit receives a DC power provided by a DC power apparatus, and the charger converts the DC power to charge the battery. The battery provides the power required to drive the motor by the inverter.
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公开(公告)号：US20220015199A1
公开(公告)日：2022-01-13
申请号：US17037599
申请日：2020-09-29
Applicant: DELTA ELECTRONICS, INC.
Inventor： Thiam-Wee TAN , Cheng-Chung LI , Chun CHANG , Yu-Min MENG
Abstract: A heating device includes a first capacitor, a first switch, a second switch, a second capacitor, a third capacitor, a coil and a controller. The first and second switch are coupled in series at a first node, and are coupled with the first capacitor in parallel. The second capacitor is coupled to the first switch. The third capacitor is coupled to the second switch, and is coupled to the second capacitor at a second node. The coil is coupled between the first and the second node. The controller outputs a first and a second control signal to the first switch and the second switch, respectively. After the heating device received a voltage and a starting command, the controller outputs the first and the second control signal to turn on or off the first and the second switch respectively. The duty cycle of the first signal is lower than 50%.
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公开(公告)号：US20200220486A1
公开(公告)日：2020-07-09
申请号：US16555815
申请日：2019-08-29
Applicant: DELTA ELECTRONICS, INC.
Inventor： Chin-Hao CHEN , Cheng-Chung LI , Yu-Min MENG
Abstract: A motor control method adapted for use in the startup process of a sensorless brushless DC (BLDC) motor includes the following steps. A phase voltage signal and a driving voltage signal are generated according to the startup current signal with a first predetermined value and a phase current signal. A driving current signal is generated according to the driving voltage signal to drive the BLDC to rotate. The driving current signal is sensed to generate the corresponding phase current signal. The load state of the shaft end of the BLDC is determined according to the phase voltage signal with the change of the corresponding phase current signal and the startup current signal. The magnitude of the startup current signal is adaptively adjusted according to the load state of the shaft end and/or according to the electric rotation angular velocity and the torque demand of the BLDC motor.
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公开(公告)号：US20240049365A1
公开(公告)日：2024-02-08
申请号：US18488011
申请日：2023-10-16
Applicant: DELTA ELECTRONICS, INC.
Inventor： Thiam-Wee TAN , Cheng-Chung LI , Chun CHANG , Yu-Min MENG
CPC classification number: H05B6/062 , H05B6/04 , H05B2206/02
Abstract: A heating device includes a first capacitor, a first switch, a second switch, a second capacitor, a third capacitor, a coil and a controller. The first and second switch are coupled in series at a first node, and are coupled with the first capacitor in parallel. The second capacitor is coupled to the first switch. The third capacitor is coupled to the second switch, and is coupled to the second capacitor at a second node. The coil is coupled between the first and the second node. The controller outputs a first and a second control signal to the first switch and the second switch, respectively. After the heating device received a voltage and a starting command, the controller outputs the first and the second control signal to turn on or off the first and the second switch respectively. The duty cycle of the first signal is lower than 50%.
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公开(公告)号：US20240049364A1
公开(公告)日：2024-02-08
申请号：US18488007
申请日：2023-10-16
Applicant: DELTA ELECTRONICS, INC.
Inventor： Thiam-Wee TAN , Cheng-Chung LI , Chun CHANG , Yu-Min MENG
CPC classification number: H05B6/062 , H05B6/04 , H05B2206/02
Abstract: A heating device includes a first capacitor, a first switch, a second switch, a second capacitor, a third capacitor, a coil and a controller. The first and second switch are coupled in series at a first node, and are coupled with the first capacitor in parallel. The second capacitor is coupled to the first switch. The third capacitor is coupled to the second switch, and is coupled to the second capacitor at a second node. The coil is coupled between the first and the second node. The controller outputs a first and a second control signal to the first switch and the second switch, respectively. After the heating device received a voltage and a starting command, the controller outputs the first and the second control signal to turn on or off the first and the second switch respectively. The duty cycle of the first signal is lower than 50%.
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