Patents Assigned to Guangzhou On-Bright Electronics Co., Ltd.
  • Patent number: 11012032
    Abstract: Method and system for temperature-dependent frequency compensation. For example, the method for temperature-dependent frequency compensation includes determining a first frequency compensation as a first function of temperature using one or more crystal oscillators, processing information associated with the first frequency compensation as the first function of temperature, and determining a second frequency compensation for a crystal oscillator as a second function of temperature based on at least information associated with the first frequency compensation as the first function of temperature. The one or more crystal oscillators do not include the crystal oscillator, and the first frequency compensation as the first function of temperature is different from the second frequency compensation as the second function of temperature.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: May 18, 2021
    Assignee: Guangzhou On-Bright Electronics Co., Ltd.
    Inventors: Rusheng Zhou, Jiapeng Zhang
  • Patent number: 10879951
    Abstract: System and method for processing an analog signal. For example, a demodulator for processing an analog signal includes one or more analog-to-digital converters configured to receive an analog signal and generate a digital signal based at least in part on the analog signal, and a correlator coupled to the one or more analog-to-digital converters and configured to generate a stream of correlation results including a first plurality of correlation results, a second plurality of correlation results, and a third plurality of correlation results. The first plurality of correlation results is different from the second plurality of correlation results by at least one correlation result, and the second plurality of correlation results is different from the third plurality of correlation results by at least another correlation result.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: December 29, 2020
    Assignee: Guangzhou On-Bright Electronics Co., Ltd.
    Inventors: Jiaqiang Huang, Jiapeng Zhang
  • Patent number: 10757778
    Abstract: Systems and methods are provided for regulating a power conversion system. An example system controller includes: a detection component configured to receive an input voltage related to a diode connected to an inductor and output a first signal at a first logic level in response to the input voltage being larger than a predetermined threshold, a control logic component configured to receive the first signal, process information associated with the first signal, and output a modulation signal related to a modulation frequency in response to the first signal being at the first logic level, and a driving component configured to receive the modulation signal and output a drive signal to open and close a first switch at the modulation frequency.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: August 25, 2020
    Assignee: Guangzhou On-Bright Electronics Co., Ltd.
    Inventor: Lieyi Fang
  • Patent number: 10734947
    Abstract: Method and system for temperature-dependent frequency compensation. For example, the method for temperature-dependent frequency compensation includes determining a first frequency compensation as a first function of temperature using one or more crystal oscillators, processing information associated with the first frequency compensation as the first function of temperature, and determining a second frequency compensation for a crystal oscillator as a second function of temperature based on at least information associated with the first frequency compensation as the first function of temperature. The one or more crystal oscillators do not include the crystal oscillator, and the first frequency compensation as the first function of temperature is different from the second frequency compensation as the second function of temperature.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: August 4, 2020
    Assignee: Guangzhou On-Bright Electronics Co., Ltd.
    Inventors: Rusheng Zhou, Jiapeng Zhang
  • Patent number: 10383187
    Abstract: System controller and method for a lighting system. The system controller includes a first controller terminal configured to receive a first signal, and a second controller terminal configured to output a second signal to a diver component. The driver component is configured to receive a first current and provide one or more drive currents to one or more light emitting diodes in response to the second signal. Additionally, the system controller is configured to process information associated with the first signal, determine a first time period for the first signal to increase from a first threshold to a second threshold, and determine a second time period for the first signal to decrease from the second threshold to the first threshold.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: August 13, 2019
    Assignee: Guangzhou On-Bright Electronics Co., Ltd.
    Inventors: Yimu Liao, Yuhao Liang, Zhiliang Chen, Lieyi Fang
  • Patent number: 10264642
    Abstract: System controller for a lighting system and method thereof according to certain embodiments. For example, the system controller includes a first controller terminal configured to receive a first signal and a transistor including a first transistor terminal, a second transistor terminal, and a third transistor terminal. Additionally, the system controller includes a second controller terminal coupled to the first transistor terminal, and a third controller terminal coupled to the third transistor terminal. The system controller is configured to determine whether the first signal is associated with a leading-edge TRIAC dimmer based at least in part on the first signal, the leading-edge TRIAC dimmer being configured to receive an AC input voltage associated with at least a first half cycle from a starting time to an ending time.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: April 16, 2019
    Assignee: Guangzhou On-Bright Electronics Co., Ltd.
    Inventors: Yuhao Liang, Yimu Liao, Zhiliang Chen
  • Patent number: 10199944
    Abstract: System and method for regulating a power converter. The system includes a comparator configured to receive a first signal and a second signal and generate a comparison signal based on at least information associated with the first signal and the second signal. The first signal is associated with at least an output current of a power converter. Additionally, the system includes a pulse-width-modulation generator configured to receive at least the comparison signal and generate a modulation signal based on at least information associated with the comparison signal, and a driver component configured to receive the modulation signal and output a drive signal to a switch to adjust a primary current flowing through a primary winding of the power converter. The modulation signal is associated with a modulation frequency corresponding to a modulation period.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: February 5, 2019
    Assignee: Guangzhou On-Bright Electronics Co., Ltd.
    Inventors: Lieyi Fang, Guo Wei Lin
  • Patent number: 10158294
    Abstract: System and method for regulating a power converter. The system includes a first signal processing component configured to receive at least a sensed signal and generate a first signal. The sensed signal is associated with a primary current flowing through a primary winding coupled to a secondary winding for a power converter. Additionally, the system includes a second signal processing component configured to generate a second signal, an integrator component configured to receive the first signal and the second signal and generate a third signal, and a comparator configured to process information associated with the third signal and the sensed signal and generate a comparison signal based on at least information associated with the third signal and the sensed signal.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: December 18, 2018
    Assignee: Guangzhou On-Bright Electronics Co., Ltd.
    Inventors: Lieyi Fang, Guo Wei Lin
  • Patent number: 10122283
    Abstract: System and method for regulating a power converter. The system includes a first signal processing component configured to receive at least a sensed signal and generate a first signal. The sensed signal is associated with a primary current flowing through a primary winding coupled to a secondary winding for a power converter. Additionally, the system includes a second signal processing component configured to generate a second signal, an integrator component configured to receive the first signal and the second signal and generate a third signal, and a comparator configured to process information associated with the third signal and the sensed signal and generate a comparison signal based on at least information associated with the third signal and the sensed signal.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: November 6, 2018
    Assignee: Guangzhou On-Bright Electronics Co., Ltd.
    Inventors: Lieyi Fang, Guo Wei Lin
  • Patent number: 9986605
    Abstract: Systems and methods are provided for regulating a power conversion system. An example system controller includes: a detection component configured to receive an input voltage related to a diode connected to an inductor and output a first signal at a first logic level in response to the input voltage being larger than a predetermined threshold, a control logic component configured to receive the first signal, process information associated with the first signal, and output a modulation signal related to a modulation frequency in response to the first signal being at the first logic level, and a driving component configured to receive the modulation signal and output a drive signal to open and close a first switch at the modulation frequency.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: May 29, 2018
    Assignee: Guangzhou On-Bright Electronics Co., Ltd.
    Inventor: Lieyi Fang
  • Patent number: 9954446
    Abstract: System and method for regulating a power converter. The system includes a first signal processing component configured to receive at least a sensed signal and generate a first signal. The sensed signal is associated with a primary current flowing through a primary winding coupled to a secondary winding for a power converter. Additionally, the system includes a second signal processing component configured to generate a second signal, an integrator component configured to receive the first signal and the second signal and generate a third signal, and a comparator configured to process information associated with the third signal and the sensed signal and generate a comparison signal based on at least information associated with the third signal and the sensed signal.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: April 24, 2018
    Assignee: Guangzhou On-Bright Electronics Co., Ltd.
    Inventors: Lieyi Fang, Guo Wei Lin
  • Patent number: 9929655
    Abstract: System and method for regulating a power converter. The system includes a comparator configured to receive a first signal and a second signal and generate a comparison signal based on at least information associated with the first signal and the second signal. The first signal is associated with at least an output current of a power converter. Additionally, the system includes a pulse-width-modulation generator configured to receive at least the comparison signal and generate a modulation signal based on at least information associated with the comparison signal, and a driver component configured to receive the modulation signal and output a drive signal to a switch to adjust a primary current flowing through a primary winding of the power converter. The modulation signal is associated with a modulation frequency corresponding to a modulation period.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: March 27, 2018
    Assignee: Guangzhou On-Bright Electronics Co., Ltd.
    Inventors: Lieyi Fang, Guo Wei Lin
  • Patent number: 9883561
    Abstract: System controller for a lighting system and method thereof according to certain embodiments. For example, the system controller includes a first controller terminal configured to receive a first signal and a transistor including a first transistor terminal, a second transistor terminal, and a third transistor terminal. Additionally, the system controller includes a second controller terminal coupled to the first transistor terminal, and a third controller terminal coupled to the third transistor terminal. The system controller is configured to determine whether the first signal is associated with a leading-edge TRIAC dimmer based at least in part on the first signal, the leading-edge TRIAC dimmer being configured to receive an AC input voltage associated with at least a first half cycle from a starting time to an ending time.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: January 30, 2018
    Assignee: Guangzhou On-Bright Electronics Co., Ltd.
    Inventors: Yuhao Liang, Yimu Liao, Zhiliang Chen
  • Patent number: 9812970
    Abstract: System and method for regulating a power converter. The system includes a first signal processing component configured to receive at least a sensed signal and generate a first signal. The sensed signal is associated with a primary current flowing through a primary winding coupled to a secondary winding for a power converter. Additionally, the system includes a second signal processing component configured to generate a second signal, an integrator component configured to receive the first signal and the second signal and generate a third signal, and a comparator configured to process information associated with the third signal and the sensed signal and generate a comparison signal based on at least information associated with the third signal and the sensed signal.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: November 7, 2017
    Assignee: Guangzhou On-Bright Electronics Co., Ltd.
    Inventors: Lieyi Fang, Guo Wei Lin
  • Patent number: 9559598
    Abstract: System and method for regulating a power converter. The system includes a comparator configured to receive a first signal and a second signal and generate a comparison signal based on at least information associated with the first signal and the second signal. The first signal is associated with at least an output current of a power converter. Additionally, the system includes a pulse-width-modulation generator configured to receive at least the comparison signal and generate a modulation signal based on at least information associated with the comparison signal, and a driver component configured to receive the modulation signal and output a drive signal to a switch to adjust a primary current flowing through a primary winding of the power converter. The modulation signal is associated with a modulation frequency corresponding to a modulation period.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: January 31, 2017
    Assignee: Guangzhou On-Bright Electronics Co., Ltd.
    Inventors: Lieyi Fang, Guo Wei Lin
  • Patent number: 9480118
    Abstract: System controller and method for a lighting system. The system controller includes a first controller terminal configured to receive a first signal, and a second controller terminal configured to output a second signal to a diver component. The driver component is configured to receive a first current and provide one or more drive currents to one or more light emitting diodes in response to the second signal. Additionally, the system controller is configured to process information associated with the first signal, determine a first time period for the first signal to increase from a first threshold to a second threshold, and determine a second time period for the first signal to decrease from the second threshold to the first threshold.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: October 25, 2016
    Assignee: Guangzhou On-Bright Electronics Co., Ltd.
    Inventors: Yimu Liao, Yuhao Liang, Zhiliang Chen, Lieyi Fang
  • Patent number: 9343979
    Abstract: System and method for regulating a power converter. The system includes a first signal processing component configured to receive at least a sensed signal and generate a first signal. The sensed signal is associated with a primary current flowing through a primary winding coupled to a secondary winding for a power converter. Additionally, the system includes a second signal processing component configured to generate a second signal, an integrator component configured to receive the first signal and the second signal and generate a third signal, and a comparator configured to process information associated with the third signal and the sensed signal and generate a comparison signal based on at least information associated with the third signal and the sensed signal.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: May 17, 2016
    Assignee: Guangzhou On-Bright Electronics Co., Ltd.
    Inventors: Lieyi Fang, Guo Wei Lin
  • Patent number: 9307597
    Abstract: System and method are provided for regulating a string current flowing through a string of one or more light emitting diodes. A system controller includes a first controller terminal, a second controller terminal and a third controller terminal. The first controller terminal is coupled to a base terminal of a bipolar junction transistor, the bipolar junction transistor further including an emitter terminal and a collector terminal, the collector terminal being connected to the string of one or more light emitting diodes. The second controller terminal is coupled to the emitter terminal of the bipolar junction transistor and to a first resistor terminal of a resistor associated with a resistance. The third controller terminal is coupled to a second resistor terminal of the resistor. In addition, the system controller is configured to receive a reference voltage, receive an emitter voltage, and output a base current.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: April 5, 2016
    Assignee: Guangzhou On-Bright Electronics Co., Ltd.
    Inventors: Qiang Luo, Lieyi Fang, Zhiliang Chen
  • Publication number: 20150311804
    Abstract: Systems and methods are provided for regulating a power conversion system. An example system controller includes: a detection component configured to receive an input voltage related to a diode connected to an inductor and output a first signal at a first logic level in response to the input voltage being larger than a predetermined threshold, a control logic component configured to receive the first signal, process information associated with the first signal, and output a modulation signal related to a modulation frequency in response to the first signal being at the first logic level, and a driving component configured to receive the modulation signal and output a drive signal to open and close a first switch at the modulation frequency.
    Type: Application
    Filed: May 8, 2014
    Publication date: October 29, 2015
    Applicant: GUANGZHOU ON-BRIGHT ELECTRONICS CO., LTD.
    Inventor: Lieyi Fang
  • Patent number: 9124188
    Abstract: System and method for regulating a power converter. The system includes a first signal processing component configured to receive at least a sensed signal and generate a first signal. The sensed signal is associated with a primary current flowing through a primary winding coupled to a secondary winding for a power converter. Additionally, the system includes a second signal processing component configured to generate a second signal, an integrator component configured to receive the first signal and the second signal and generate a third signal, and a comparator configured to process information associated with the third signal and the sensed signal and generate a comparison signal based on at least information associated with the third signal and the sensed signal.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: September 1, 2015
    Assignee: Guangzhou On-Bright Electronics Co., Ltd.
    Inventors: Lieyi Fang, Guo Wei Lin