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    Power monitor
    1.
    发明授权
    Power monitor 有权

    公开(公告)号：US11630501B2

    公开(公告)日：2023-04-18

    申请号：US17930419

    申请日：2022-09-08

    Applicant: DELTA ELECTRONICS, INC.

    Inventor： Kuan-Sheng Wang ,  Chien-Chung Chang

    IPC: G06F1/3206 ,  G01R31/28 ,  H03K7/08 ,  H02M3/335

    Abstract: A power monitor includes a detecting circuit, a processing circuit, and a warning circuit. The detecting circuit detects a first abnormal condition of a primary side circuit and a second abnormal condition of a secondary side circuit. The processing circuit calculates a first class and a first occurring number of the first abnormal condition, and calculates a second class and a second occurring number of the second abnormal condition. The processing circuit determines whether the first occurring number is larger than a first predetermined number corresponding to the first class; if it is, the processing circuit outputs a first abnormal signal. The processing circuit determines whether the second occurring number is larger than a second predetermined number corresponding to the second class; if it is, the processing circuit outputs a second abnormal signal. The warning circuit outputs a warning signal according to the first or the second abnormal signal.

    SWITCH-MODE POWER SUPPLY HAVING REDUCED AUDIBLE NOISE
    2.
    发明申请
    SWITCH-MODE POWER SUPPLY HAVING REDUCED AUDIBLE NOISE 审中-公开
    具有减少可听噪声的开关电源

    公开(公告)号：US20130293206A1

    公开(公告)日：2013-11-07

    申请号：US13855482

    申请日：2013-04-02

    Applicant: Delta Electronics, Inc.

    Inventor： Laszlo Huber ,  Milan Jovanovic ,  Chien-Chung Chang

    IPC: H02M3/158

    CPC classification number: H02M3/158 ,  H02M3/156

    Abstract: A power supply having an input and an output, includes a power converter coupled between the input and output of the power supply including at least one switch that is controlled by comparing a sensed voltage, the sensed voltage corresponding to a current flowing through the switch, to a reference voltage. A controller, in response to a change detected in a switching frequency of the switch, reduces audible noise generated by the power supply by at least one of: adjusting the reference voltage; adjusting the current sense voltage; or adjusting a resistance used to generate the sensed voltage.

    Abstract translation: 具有输入和输出的电源包括耦合在电源的输入和输出之间的功率转换器，其包括至少一个开关，所述至少一个开关通过比较感测的电压，对应于流过开关的电流的感测电压， 到参考电压。 控制器响应于在开关的开关频率中检测到的变化，通过以下至少一个来降低由电源产生的可听噪声：调整参考电压; 调整电流检测电压; 或调整用于产生感测电压的电阻。

    Centrifugal channel device
    3.
    发明授权
    Centrifugal channel device 有权

    公开(公告)号：US09643183B2

    公开(公告)日：2017-05-09

    申请号：US14946280

    申请日：2015-11-19

    Applicant: DELTA ELECTRONICS, INC.

    Inventor： Chien-Chung Chang ,  Sheng-Yan Hu ,  Cheng-Hsien Lu

    IPC: B01L3/00

    CPC classification number: B01L3/502753 ,  B01L3/502715 ,  B01L2200/027 ,  B01L2200/04 ,  B01L2200/0652 ,  B01L2200/0689 ,  B01L2300/041 ,  B01L2300/0803 ,  B01L2300/0858 ,  B01L2300/0867 ,  B01L2300/123

    Abstract: The centrifugal channel device includes a channel body, a collecting unit and a waste liquid tank. The channel body includes a first surface and a second surface relatively disposed. The channel body includes a sample inlet, a sample channel, an isolation tank, a reagent inlet, a reagent channel and a mixing channel. The sample inlet is disposed on the first surface. The sample channel is connected to the sample inlet. The isolation tank is adjacently disposed and communicates with the sample channel. The reagent inlet is disposed on the first surface. The reagent channel is connected to the reagent inlet. One end of the mixing channel is connected with the sample channel and the reagent channel. The collecting unit has an opening and an overflow hole. The opening communicates with another end of the mixing channel. The waste liquid tank communicates with the opening of the collecting unit.

    Power converter and method of control thereof
    4.
    再颁专利
    Power converter and method of control thereof 有权

    公开(公告)号：USRE50277E1

    公开(公告)日：2025-01-21

    申请号：US16931904

    申请日：2020-07-17

    Applicant: Delta Electronics, Inc.

    Inventor： Haibin Song ,  Laszlo Huber ,  Daofei Xu ,  Alpha Zhang ,  Milan M. Jovanovic ,  Chien-Chung Chang

    IPC: H02M3/335 ,  H02M1/00 ,  H02M1/32 ,  H02M1/34

    Abstract: A flyback power converter includes a hybrid clamp circuit and a corresponding power management unit that substantially optimizes the performance of the flyback power converter in its entire line and load ranges. The clamp circuit, which is connected in parallel to a primary winding of the flyback transformer, includes a parallel combination of a capacitor and resistor that is connected in series with a parallel combination of a switch and a diode. By sensing the operating conditions, the power management circuit configures the clamp circuit either as a passive clamp or as an active clamp. In the passive-clamp configuration, the switch is kept turned off. In the active-clamp configuration, the switch operates with pulse-width modulation (PWM) which enables ZVS turn-on of the main switch.

    Power monitor
    5.
    发明授权
    Power monitor 有权

    公开(公告)号：US11507168B2

    公开(公告)日：2022-11-22

    申请号：US16257020

    申请日：2019-01-24

    Applicant: DELTA ELECTRONICS, INC.

    Inventor： Kuan-Sheng Wang ,  Chien-Chung Chang

    IPC: G06F1/3206 ,  G01R31/28 ,  H03K7/08

    Abstract: A power monitor includes a detecting circuit, a processing circuit, and a warning circuit. The detecting circuit detects a first abnormal condition of a primary side circuit and a second abnormal condition of a secondary side circuit. The processing circuit calculates a first class and a first occurring number of the first abnormal condition, and calculates a second class and a second occurring number of the second abnormal condition. The processing circuit determines whether the first occurring number is larger than a first predetermined number corresponding to the first class; if it is, the processing circuit outputs a first abnormal signal. The processing circuit determines whether the second occurring number is larger than a second predetermined number corresponding to the second class; if it is, the processing circuit outputs a second abnormal signal. The warning circuit outputs a warning signal according to the first or the second abnormal signal.

    Switch-mode power supply having reduced audible noise
    7.
    发明授权
    Switch-mode power supply having reduced audible noise 有权
    开关模式电源具有降低的可闻噪音

    公开(公告)号：US08970198B2

    公开(公告)日：2015-03-03

    申请号：US13855482

    申请日：2013-04-02

    Applicant: Delta Electronics, Inc.

    Inventor： Laszlo Huber ,  Milan Jovanovic ,  Chien-Chung Chang

    IPC: G05F1/00 ,  H02M3/158 ,  H02M3/156

    CPC classification number: H02M3/158 ,  H02M3/156

    Abstract: A power supply having an input and an output, includes a power converter coupled between the input and output of the power supply including at least one switch that is controlled by comparing a sensed voltage, the sensed voltage corresponding to a current flowing through the switch, to a reference voltage. A controller, in response to a change detected in a switching frequency of the switch, reduces audible noise generated by the power supply by at least one of: adjusting the reference voltage; adjusting the current sense voltage; or adjusting a resistance used to generate the sensed voltage.

    Abstract translation: 具有输入和输出的电源包括耦合在电源的输入和输出之间的功率转换器，其包括至少一个开关，所述至少一个开关通过比较感测的电压，对应于流过开关的电流的感测电压， 到参考电压。 控制器响应于在开关的开关频率中检测到的变化，通过以下至少一个来降低由电源产生的可听噪声：调整参考电压; 调整电流检测电压; 或调整用于产生感测电压的电阻。

    Composite product testing system and testing method
    8.
    发明授权
    Composite product testing system and testing method 有权

    公开(公告)号：US10677841B2

    公开(公告)日：2020-06-09

    申请号：US15861441

    申请日：2018-01-03

    Applicant: Delta Electronics, Inc.

    Inventor： Chien-Chung Chang ,  Hung-Pin Yu ,  Yu-Jen Chen ,  Wen-Jen Lo ,  Chih-Yen Liu

    IPC: G01R31/28 ,  H01L21/00 ,  G01R1/00

    Abstract: A composite product testing system including a main management system, a test equipment and a burn-in apparatus is disclosed. The test equipment and the burn-in apparatus are both arranged in a burn-in chamber of the testing system. First, multiple tested products are respectively inserted in multiple gauges of the burn-in chamber, and a burn-in procedure is activated for providing an aging environment. The main management system controls one of the gauges to connect with the test equipment for the test equipment to perform testing on the tested product upon the connected gauge. After the testing is completed, the main management system then controls the gauge to disconnect from the test equipment and re-connect with the burn-in apparatus, so as to monitor the tested product upon the gauge during the burn-in procedure.

    Power converter and method of control thereof
    9.
    发明授权
    Power converter and method of control thereof 有权

    公开(公告)号：US10141853B2

    公开(公告)日：2018-11-27

    申请号：US15428885

    申请日：2017-02-09

    Applicant: DELTA ELECTRONICS, INC.

    Inventor： Haibin Song ,  Laszlo Huber ,  Daofei Xu ,  Alpha Zhang ,  Milan M. Jovanovic ,  Chien-Chung Chang

    IPC: H02M3/335 ,  H02M1/32 ,  H02M1/00

    Abstract: A flyback power converter includes a hybrid clamp circuit and a corresponding power management unit that substantially optimizes the performance of the flyback power converter in its entire line and load ranges. The clamp circuit, which is connected in parallel to a primary winding of the flyback transformer, includes a parallel combination of a capacitor and resistor that is connected in series with a parallel combination of a switch and a diode. By sensing the operating conditions, the power management circuit configures the clamp circuit either as a passive clamp or as an active clamp. In the passive-clamp configuration, the switch is kept turned off. In the active-clamp configuration, the switch operates with pulse-width modulation (PWM) which enables ZVS turn-on of the main switch.

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