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    CONTROL SYSTEMS AND METHODS FOR TURNING OFF TRANSISTORS ASSOCIATED WITH AUXILIARY WINDINGS AND TURNING ON TRANSISTORS ASSOCIATED WITH PRIMARY WINDINGS
    22.
    发明申请
    CONTROL SYSTEMS AND METHODS FOR TURNING OFF TRANSISTORS ASSOCIATED WITH AUXILIARY WINDINGS AND TURNING ON TRANSISTORS ASSOCIATED WITH PRIMARY WINDINGS 有权

    公开(公告)号：US20230099279A1

    公开(公告)日：2023-03-30

    申请号：US17949762

    申请日：2022-09-21

    Applicant: On-Bright Electronics (Shanghai) Co., Ltd.

    Inventor： Qian Fang ,  Yun Sun ,  Penglin Yang ,  Yuan Lin

    IPC: H02M3/335 ,  H02M1/00

    Abstract: System and method for controlling turning on a first transistor and turning off a second transistor. For example, a system for controlling turning on a first transistor and turning off a second transistor includes: a logic signal generator configured to: process information associated with a first voltage related to a second voltage of a first auxiliary winding, the first auxiliary winding being coupled to a primary winding, a secondary winding, and a second auxiliary winding; generate a third voltage based on at least information associated with the first voltage, the third voltage indicating a first voltage difference from a drain terminal to a source terminal of a first transistor related to the primary winding; process information associated with the third voltage and a reference voltage; and change a logic signal from a first logic level to a second logic level.

    SYSTEMS AND METHODS FOR GENERATING CURRENTS WITH VARIABLE SLOPES FOR DC-TO-DC VOLTAGE CONVERTERS
    23.
    发明申请
    SYSTEMS AND METHODS FOR GENERATING CURRENTS WITH VARIABLE SLOPES FOR DC-TO-DC VOLTAGE CONVERTERS 有权

    公开(公告)号：US20230049903A1

    公开(公告)日：2023-02-16

    申请号：US17885099

    申请日：2022-08-10

    Applicant: ON-BRIGHT ELECTRONICS (SHANGHAI) CO., LTD.

    Inventor： Fagang Wang ,  Qiang Luo

    IPC: H02M3/158 ,  H02M1/00

    Abstract: System and method for generating one or more compensation currents for a DC-to-DC voltage converter. For example, a system for generating one or more compensation currents for a DC-to-DC voltage converter includes: a voltage generator configured to receive a reference voltage and generate a first ramp voltage and a second ramp voltage based at least in part on the reference voltage; and a current generator configured to receive the first ramp voltage, the second ramp voltage, an input voltage, and an output voltage; wherein the current generator is further configured to: if the output voltage is smaller than the input voltage, generate a first compensation current based at least in part on the first ramp voltage; and if the output voltage is larger than the input voltage, generate a second compensation current based at least in part on the second ramp voltage.

    Systems and methods for providing power supply to current controllers associated with LED lighting
    24.
    发明授权
    Systems and methods for providing power supply to current controllers associated with LED lighting 有权

    公开(公告)号：US11564299B2

    公开(公告)日：2023-01-24

    申请号：US17096741

    申请日：2020-11-12

    Applicant: ON-BRIGHT ELECTRONICS (SHANGHAI) CO., LTD.

    Inventor： Zhuoyan Li ,  Ke Li ,  Liqiang Zhu

    IPC: H05B45/44 ,  H05B45/14

    Abstract: System and method for controlling one or more light emitting diodes. For example, the system includes: a power supply controller configured to receive a cathode voltage from a cathode of a diode, the diode including an anode configured to receive a rectified voltage generated by a rectifying bridge, the power supply controller being further configured to generate a first signal based at least in part on the cathode voltage; and a driver configured to receive the first signal and generate a second signal based at least in part on the first signal, the driver being further configured to output the second signal to a gate terminal of a transistor, the transistor including a source terminal coupled to the driver and a first resistor, the transistor further including a drain terminal coupled to the one or more light emitting diodes and an output capacitor connected to the cathode of the diode.

    SYSTEMS AND METHODS FOR CONTROLLING GATE VOLTAGE INCREASE ON PRIMARY SIDE TO REDUCE VOLTAGE SPIKE ON SECONDARY SIDE OF SWITCHING POWER SUPPLIES
    25.
    发明申请
    SYSTEMS AND METHODS FOR CONTROLLING GATE VOLTAGE INCREASE ON PRIMARY SIDE TO REDUCE VOLTAGE SPIKE ON SECONDARY SIDE OF SWITCHING POWER SUPPLIES 有权

    公开(公告)号：US20220294355A1

    公开(公告)日：2022-09-15

    申请号：US17689860

    申请日：2022-03-08

    Applicant: ON-BRIGHT ELECTRONICS (SHANGHAI) CO., LTD.

    Inventor： YUAN LIN ,  PENGLIN YANG ,  DONGZE YANG ,  LIEYI FANG

    IPC: H02M3/335 ,  H02M1/08 ,  H02M1/44

    Abstract: Controller and method for a switching power supply. For example, a controller for a switching power supply includes: a first terminal configured to receive a feedback voltage representing an output voltage associated with a secondary winding of the switching power supply; a second terminal configured to output a drive voltage to a first transistor associated with a primary winding coupled to the secondary winding of the switching power supply; a comparator configured to receive the feedback voltage and a predetermined feedback threshold and generate a comparison signal based at least in part on the feedback voltage and the predetermined feedback threshold; a pulse-width detector configured to detect a pulse width of the drive voltage during a first switching cycle, compare the detected pulse width with a predetermined time threshold, and generate a detection signal based at least in part on the detected pulse width and the predetermined time threshold.

    SYSTEMS AND METHODS WITH TRIAC DIMMERS FOR VOLTAGE CONVERSION RELATED TO LIGHT EMITTING DIODES
    26.
    发明申请
    SYSTEMS AND METHODS WITH TRIAC DIMMERS FOR VOLTAGE CONVERSION RELATED TO LIGHT EMITTING DIODES 有权

    公开(公告)号：US20220225483A1

    公开(公告)日：2022-07-14

    申请号：US17528153

    申请日：2021-11-16

    Applicant: ON-BRIGHT ELECTRONICS (SHANGHAI) CO., LTD.

    Inventor： JIQING YANG ,  ZHUOYAN LI ,  LIQIANG ZHU ,  JUN ZHOU

    IPC: H05B45/37

    Abstract: System and method for voltage conversion to drive one or more light emitting diodes with at least a TRIAC dimmer. For example, the system includes: a phase detector configured to receive a first rectified voltage generated based at least in part on an AC input voltage processed by at least the TRIAC dimmer, the phase detector being further configured to generate a digital signal representing phase information associated with the first rectified voltage; a voltage generator configured to receive the digital signal and generate a DC voltage based at least in part on the digital signal; and a driver configured to receive the DC voltage and affect, based at least in part on the DC voltage, a current flowing through the one or more light emitting diodes; wherein the current changes with the phase information according to a predetermined function.

    SYSTEMS AND METHODS FOR CONTROLLING CURRENTS FLOWING THROUGH LIGHT EMITTING DIODES
    27.
    发明申请
    SYSTEMS AND METHODS FOR CONTROLLING CURRENTS FLOWING THROUGH LIGHT EMITTING DIODES 有权

    公开(公告)号：US20220225480A1

    公开(公告)日：2022-07-14

    申请号：US17554306

    申请日：2021-12-17

    Applicant: ON-BRIGHT ELECTRONICS (SHANGHAI) CO., LTD.

    Inventor： KE LI ,  LIQIANG ZHU

    IPC: H05B45/31 ,  H05B45/10

    Abstract: System and method for controlling one or more light emitting diodes. For example, the system includes: a phase detector configured to process information associated with a rectified voltage generated by a rectifier and related to a TRIAC dimmer, the rectified voltage corresponding to a first waveform during a first half cycle of an AC voltage and corresponding to a second waveform during a second half cycle of the AC voltage, the phase detector being further configured to generate a phase detection signal representing a first time duration during which the first waveform indicates that the rectified voltage is larger than a predetermined threshold and representing a second time duration during which the second waveform indicates that the rectified voltage is larger than the predetermined threshold; and a mode detector configured to process information associated with the rectified voltage.

    SYSTEMS AND METHODS FOR BLEEDER CONTROL RELATED TO TRIAC DIMMERS ASSOCIATED WITH LED LIGHTING
    28.
    发明申请
    SYSTEMS AND METHODS FOR BLEEDER CONTROL RELATED TO TRIAC DIMMERS ASSOCIATED WITH LED LIGHTING 有权

    公开(公告)号：US20220217824A1

    公开(公告)日：2022-07-07

    申请号：US17578706

    申请日：2022-01-19

    Applicant: ON-BRIGHT ELECTRONICS (SHANGHAI) CO., LTD.

    Inventor： LIQIANG ZHU ,  JUN ZHOU

    IPC: H05B45/397 ,  H05B45/3575

    Abstract: System and method for controlling one or more light emitting diodes. For example, the system includes: a current regulator including a first regulator terminal and a second regulator terminal, the first regulator terminal being configured to receive a diode current flowing through the one or more light emitting diodes, the current regulator being configured to generate a sensing signal representing the diode current, the second regulator terminal being configured to output the sensing signal; a bleeder controller including a first controller terminal and a second controller terminal, the first controller terminal being configured to receive the sensing signal from the second regulator terminal, the bleeder controller being configured to generate a first bleeder control signal based at least in part on the sensing signal, the second controller terminal being configured to output the first bleeder control signal.

    SWITCH CONTROL SYSTEMS FOR LIGHT EMITTING DIODES AND METHODS THEREOF
    29.
    发明申请
    SWITCH CONTROL SYSTEMS FOR LIGHT EMITTING DIODES AND METHODS THEREOF 有权

    公开(公告)号：US20220209762A1

    公开(公告)日：2022-06-30

    申请号：US17520573

    申请日：2021-11-05

    Applicant: ON-BRIGHT ELECTRONICS (SHANGHAI) CO., LTD.

    Inventor： LIQIANG ZHU ,  JUN ZHOU

    IPC: H03K5/24 ,  H05B45/10 ,  H05B45/395 ,  H05B45/3575

    Abstract: System and method for controlling one or more light emitting diodes. For example, the system for controlling one or more light emitting diodes includes a current generator configured to generate a first current flowing through one or more light emitting diodes. The one or more light emitting diodes are configured to receive a rectified voltage generated by a rectifying bridge coupled to a TRIAC dimmer. Additionally, the system includes a bleeder configured to receive the rectified voltage, and a controller configured to receive a sensing voltage from the current generator and output a control signal to the bleeder. The sensing voltage indicates a magnitude of the first current.

    Systems and methods for bleeder control related to TRIAC dimmers associated with LED lighting
    30.
    发明授权
    Systems and methods for bleeder control related to TRIAC dimmers associated with LED lighting 有权

    公开(公告)号：US11297704B2

    公开(公告)日：2022-04-05

    申请号：US16944665

    申请日：2020-07-31

    Applicant: ON-BRIGHT ELECTRONICS (SHANGHAI) CO., LTD.

    Inventor： Liqiang Zhu ,  Jun Zhou

    IPC: H05B45/39 ,  H05B45/397 ,  H05B45/3575

    Abstract: System and method for controlling one or more light emitting diodes. For example, the system includes: a current regulator including a first regulator terminal and a second regulator terminal, the first regulator terminal being configured to receive a diode current flowing through the one or more light emitting diodes, the current regulator being configured to generate a sensing signal representing the diode current, the second regulator terminal being configured to output the sensing signal; a bleeder controller including a first controller terminal and a second controller terminal, the first controller terminal being configured to receive the sensing signal from the second regulator terminal, the bleeder controller being configured to generate a first bleeder control signal based at least in part on the sensing signal, the second controller terminal being configured to output the first bleeder control signal.

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