Patents Assigned to Delta Electronics, Inc.
  • Patent number: 11041614
    Abstract: A lighting device includes a wavelength conversion unit, a driving unit, and a light source. The wavelength conversion unit includes a main body and a fluorescent powder layer. The main body has a cylindrical outer surface. The fluorescent powder layer is disposed on the cylindrical outer surface. The driving unit is configured to drive the wavelength conversion unit to rotate around an axis. The cylindrical outer surface surrounds the axis. The light source is configured to emit light toward the fluorescent powder layer.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: June 22, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Jih-Chi Li, Wen-Cheng Huang
  • Patent number: 11041508
    Abstract: An air mover is provided. The air mover includes a housing, a spacer, a co-axial motor, a first fan and a second fan. The housing includes a first housing member and a second housing member. A first inlet, a second inlet and an outlet are formed on the housing. The first inlet is formed on the first housing member and the second inlet is formed on the second housing member. The spacer is disposed between the first housing member and the second housing member. The co-axial motor includes a shaft, wherein the co-axial motor is disposed on the spacer. The shaft includes a first free end and a second free end. The first free end extends in a first direction, and the second free end extends in a second direction.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: June 22, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: En-Feng Chen, Hsu-Fan Al, Wen-Hsiang Lin
  • Patent number: 11044438
    Abstract: A projection display apparatus includes a processing circuit and an image projection display device. The processing circuit is configured to perform a dynamic motion compensation based on two successive first frame and second frame in a first video signal, in order to generate a complement frame between the first frame and the second frame. The processing circuit is further configured to combine the first frame and the complement frame into a third frame, and to decompose the third frame to generate a plurality of fourth frames and to output the fourth frames as a second video signal. A resolution of the first video signal is higher than a resolution of the second video signal. The image projection display device is configured to project and display the second video signal, in which the imaging device has an original resolution equal to the resolution of the second video signal.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: June 22, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventor: Fu-Jen Chiang
  • Patent number: 11037723
    Abstract: A transformer includes a magnetic core, a first winding and at least one second winding. The magnetic core has a window through which the first winding passes through without contacting the magnetic core. The second winding passes through the window of the magnetic core and is wound on the magnetic core. The second winding has a distance from the first winding, and a semi-conductive part is disposed between the second winding and the magnetic core. The present disclosure can effectively lower the risk of partial discharge between the second winding and the magnetic core, and thus the transformer of the present disclosure has high reliability.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: June 15, 2021
    Assignee: Delta Electronics, Inc.
    Inventors: Jianxing Dong, Jianping Ying, Teng Liu
  • Patent number: 11038327
    Abstract: An inverter box structure includes an inverter accommodating box of an inverter circuit and a junction box. A first quick connector, disposed on the inverter accommodating box, includes a first connection end and a second connection end. The first connection end of the first quick connector is electrically with the inverter circuit. A second quick connector, disposed on the junction box or in the junction box, includes a third connection end and a fourth connection end. The third connection end of the second quick connector is connected to an inner wire of the junction box. A casing of the inverter accommodating box equipped with the first quick connector is opposite to a casing of the junction box equipped with the second quick connector, and the second connection end of the first quick connector matches with and is electrically connected to the fourth connection end of the second quick connector.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: June 15, 2021
    Assignee: Delta Electronics, Inc.
    Inventors: Xiangwei Wang, Jie Zhang
  • Patent number: 11036119
    Abstract: A projection device includes a prism set, a digital micro-mirror device, a reflective component and a heat dissipation module. The prism set includes a light-incident side and a mirror-corresponding side opposite to each other, and includes a first light-emitting side and a second light-emitting side adjacent to each other. The digital micro-mirror device spatially corresponds to the mirror-corresponding side. An incident light is transmitted through the light-incident side to irradiate the digital micro-mirror device. When the digital micro-mirror device generates an on-state light, the on-state light is outputted through the first light-emitting side. When the digital micro-mirror device generates an off-state light, the off-state light is transmitted toward the reflective component and outputted through the second light-emitting side. The heat dissipation module spatially corresponding to the second light-emitting side is configured to absorb and convert the off-state light for heat dissipation.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: June 15, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventor: Yi-Ting Tsai
  • Patent number: 11031808
    Abstract: A power supply system is connected to a load, and the power supply system includes a power supply apparatus and a backup apparatus. When an input power is normal, the power supply apparatus converts the input power into a first output power, provides the first output power to the power bus, and selectively provides the first output power to charge the backup apparatus, in which the first output power has a first rated upper-limit value. When the input power is normal and a required power of the load is greater than the first rated upper-limit value, the backup apparatus provides a second output power to the power bus so that the sum of the first output power and the second output power meets the required power of the load.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: June 8, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventor: Shih-Chieh Chang
  • Patent number: 11031871
    Abstract: Embodiments of the present disclosure provide an LLC resonant converter system. The LLC resonant converter system includes: a first resonant circuit including a first switch circuit, a first LC resonant circuit, a first transformer, and a first rectifier circuit; and a second resonant circuit including a second switch circuit, a second LC resonant circuit, a second transformer, and a second rectifier circuit; where one secondary side winding of the first transformer is connected in series with one secondary side winding of the second transformer to form a first series branch, and the other secondary side winding of the first transformer is connected in series with the other secondary side winding of the second transformer to form a second series branch. The LLC resonant converter system achieves current equilibrium or voltage equilibrium in a two-branch resonant circuit, thereby simplifying a control circuit and improving current equilibrium or voltage equilibrium effects.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: June 8, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Xingkuan Guo, Xinwei Liu
  • Patent number: 11031878
    Abstract: A resonant converter and a manufacturing method of a transformer thereof are provided. The resonant converter includes a full bridge circuit, an element, a first branch circuit, a second branch circuit and a secondary winding. The full bridge circuit includes a first node and a second node. The element includes an inductor or a capacitor. The first branch circuit includes a first primary winding. The second branch circuit includes a second primary winding, and the first and second primary windings have the same turn number. The transformer is constructed by the first and second primary windings and the secondary winding. The first branch circuit, the element and the second branch circuit are sequentially coupled in series between the first and second nodes. The first branch circuit and the second branch circuit are symmetrically located with respect to the element. The first and second branch circuits have the same impedance.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: June 8, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Da Jin, Yahong Xiong, Qinghua Su
  • Patent number: 11025304
    Abstract: The present disclosure provides a wireless power transmission system and a data transmission method, where the system includes: a first processing module configuring a first communication module according to a block of first preset configuration information, output a first digital signal according to the block of first preset configuration information, and input the first digital signal to the driving module and a second processing module detecting a power signal of the second circuit, obtaining a block of second preset configuration information according to the power signal, and configuring the second communication module according to the block of second preset configuration information. The wireless power transmission system and the data transmission method provided in the present disclosure reduce structural complexity of the device in the case that one-to-one communications is realized.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: June 1, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Shuailin Du, Jian Zhou, Yongkai Liao, Xuecong Xu, Kaining Tan
  • Patent number: 11026338
    Abstract: A waterproof casing for packaging a circuit board having an antenna includes a housing, a waterproof gasket, and an end cover. The housing has an accommodation space and a side opening communicating with each other. The accommodation space is configured to accommodate the circuit board. The waterproof gasket includes a main body and an extending portion. The main body covers the side opening. The extending portion extends from the main body. The end cover abuts against a side of the main body away from the accommodation space, and is fixed to the housing to form a box with the housing. The box has a communication opening positioned corresponding to the antenna. The extending portion hermetically covers the communication opening.
    Type: Grant
    Filed: February 17, 2019
    Date of Patent: June 1, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Ching-Ho Chou, Po-Heng Chao, Hung-Chi Chen
  • Patent number: 11022136
    Abstract: A fan includes a motor base, a bearing, an impeller, a stator and a magnetic element. The motor base has a bearing stand in a center portion thereof. The bearing is accommodated within the bearing stand. The impeller includes a metallic case, a hub, plural blades and a rotating shaft. The metallic case has a top wall and a sidewall. The hub is sheathed around the metallic case. The blades are disposed around an outer periphery of the hub. The rotating shaft is inserted into a central opening of the top wall and penetrated through the bearing stand, wherein no raised ring structure is formed in the top wall of the metallic case, and the rotating shaft and the metallic case are jointed together by a laser welding process. The magnetic element is disposed on an inner wall of the metallic case and aligned with the stator.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: June 1, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Chiu-Kung Chen, Chao-Wen Lu
  • Patent number: 11025172
    Abstract: A three-level modulation for an isolated multilevel DC/DC resonant converter offers output voltage regulation capability with fixed switching frequency and achieves high efficiency along with soft-switching of the power switches. The three-level modulation enables current balance in all power devices, therefore, realizes better thermal performance and longer circuit life. An efficient control method that combines the three-level modulation with conventional frequency modulation achieves a wide output voltage range with a narrow switching frequency range. At any given time, a control circuit selects one of two different modulation schemes to operate the primary-side switches of the resonant converter based on an output voltage, or to one or more external control signals. Together with a selected device switching frequency and duty cycles, the two modulation schemes generate different voltage waveforms to a primary-side transformer, which are coupled to the secondary-side to provide different output voltages.
    Type: Grant
    Filed: May 25, 2020
    Date of Patent: June 1, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Chi Zhang, Peter Barbosa, Yang Jiao
  • Patent number: 11018596
    Abstract: A power converter device includes a power element module, a conductor, and a magnetic-conductive assembly. The power element module includes at least two electrodes and a power semiconductor unit. Voltage among these electrodes is AC voltage. The power semiconductor unit includes at least one pure die, and the pure die includes plural surfaces. The surface which occupies the most area of the pure die is the pure die surface. The conductor is coupled to the power element module. A current loop forms between the power element module and the conductor. A magnetic loop forms in the magnetic-conductive assembly. The magnetic-conductive assembly includes a chamber. The current loop passes through the chamber and intersects the magnetic loop to form inductance which the current loop needs. A part of the power element module is disposed in the chamber.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: May 25, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Jian-Hong Zeng, Xiao-Ni Xin, Rui Wu, Min Zhou, Hao-Yi Ye
  • Patent number: 11016030
    Abstract: A detection method with a compensation function includes the following steps. After a sample is added to a first cassette, a first triggering instruction is provided to define a first time point. The start position of the reaction area of the first cassette is detected, and a second time point is defined when a first light detecting signal greater than or equal to a predetermined value is obtained. After a predetermined time, a second light detecting signal is obtained from a color band of the reaction area. The time difference between the first time point and the second time point is calculated and the time difference is designated as a first retention time. A compensation value is obtained in a lookup table according to the first retention time and the second detecting signal and the second detecting signal is compensated by the compensation value.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: May 25, 2021
    Assignee: Delta Electronics, Inc.
    Inventors: Ying-Ting Chen, Peng-Hsiang Wu
  • Patent number: 11011989
    Abstract: A power supply circuit includes an energy storage element, a first switch, a voltage signal converter, a second switch, a third switch and a power supply. The first switch is coupled to the energy storage element at a first voltage output terminal. The voltage signal converter is coupled to, respectively, the energy storage element and the first switch at a first converter output terminal and a second converter output terminal. The second switch is coupled to the first switch. The third switch is coupled to the second switch at a second voltage output terminal. The power supply is coupled to the second switch and the third switch. The energy storage element, the first switch, the voltage signal converter, the second switch, the third switch and the power supply cooperate and generate a output voltage. A method of operating the power supply circuit is also disclosed herein.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: May 18, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Wei-Hsun Lai, Chien-Yu Wang, Po-Cheng Chiu, Wei-Cheng Lin
  • Patent number: 11009301
    Abstract: A heat dissipating fin assembly includes a bottom, a plurality of first heat dissipating fins, a plurality of second heat dissipating fins, an inner cover and an outer cover. The first heat dissipating fins extend from an inner end toward an outer end. The second heat dissipating fins are arranged between two of the first heat dissipating fins in staggered. The inner cover is disposed near the inner end and connected to the first heat dissipating fins. The outer cover is disposed near the outer end and connected to the second heat dissipating fins. The inner cover and the outer cover are separated to form an opening, and the dusts entering the heat dissipating fin assembly through the inner end are ejected via the opening. The second heat dissipating fins extend from around the opening to the outer end.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: May 18, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Shu-Cheng Yang, Shih-Chou Chen
  • Patent number: 11012175
    Abstract: An intelligence-defined optical tunnel network system includes a plurality of pods. Any one of the pods includes a plurality of optical add-drop sub-systems (OADS), which are configured to perform data transmission, respectively, through a plurality of Top-of-Rack (ToR) switches between a corresponding plurality of servers. Any one of the OADSs includes a first transmission module and a second transmission module. The first transmission module is configured to perform data transmission at a first frequency band, and the first transmission module of any one of the OADSs connected to the first transmission module of the adjacent OADSs to form a first transmission ring. The second transmission module is configured to perform data transmission at a second frequency band differed to the first frequency band, and the second transmission module of any one of the OADSs connected to the second transmission module of the adjacent OADSs to form a second transmission ring.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: May 18, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Po-Lung Tien, Maria Chi-Jui Yuang, Ching-Nien Chen, Tien-Chien Lin
  • Patent number: 11005268
    Abstract: The present disclosure provides an optimizer for a photovoltaic system, a control method for an optimizer, and an optimizer parallel arrangement thereof. In the method, a DC bus voltage output by the optimizer is acquired; and the optimizer is controlled to switch among an MPPT mode, a limited power mode and a fast shutdown mode based on the DC bus voltage.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: May 11, 2021
    Assignee: Delta Electronics, Inc.
    Inventors: Xuancai Zhu, Bingwen Weng, Jiao Zhang, Yanlong Li, Jinfa Zhang
  • Patent number: 11002562
    Abstract: An encoder includes a magnet, an optical coded disc, a magnetic sensing assembly, an optical sensing assembly and a signal processing unit. The optical coded disc has a first incremental pattern track and a second incremental pattern track. The magnet and the optical coded disc are structurally coaxial and rotatable. The magnet sensing assembly senses the magnet rotation to obtain an absolute position signal. The optical sensing assembly senses the optical coded disc rotation to obtain a first incremental position signal and a second incremental position signal. The signal processing unit receives and integrates those signals to obtain a high precision absolute position information.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: May 11, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Horng-Jou Wang, Jeng-Ping Lin