Patents by Inventor Yi-Bin Hwang

Yi-Bin Hwang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Power adapter and power supply method thereof
    Patent number: 8149556
    Abstract: A power adapter for an electronic device selectively works in different modes according to a working state signal of the electronic device. When the electronic device is powered off or on with a battery in a determined charge state, the power adapter controls a relay to turn off the relay to disconnect power to the electronic device.
    Type: Grant
    Filed: June 8, 2009
    Date of Patent: April 3, 2012
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Fang-Ta Tai, Chen-Hsiang Lin, Li-Chung Sun, Teng-Feng Zou, Jui-Ting Hung, Yi-Bin Hwang
  • Control circuit for switching power supply
    Patent number: 8050061
    Abstract: A control circuit for a switching power supply (SPS) includes power input and output interfaces, a relay, a relay driving circuit, a microprocessor, and an alternating current/directing current (AC/DC) converter. The power input interface receives an external alternating current (AC) power signal, and transmits the AC power signal to the SPS via the power output interface. The AC/DC converter transforms the AC power signal into a direct current (DC) power signal to supply for the relay, the relay driving circuit, and the microprocessor. When a computer is turned on, the microprocessor sends a first control signal to control the relay driving circuit to drive the relay to connect the power input and output interfaces. When the computer is turned off, the microprocessor sends a second control signal to control the relay driving circuit to drive the relay to cut off connection between the power input and output interfaces.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: November 1, 2011
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Fang-Ta Tai, Chen-Hsiang Lin, Teng-Feng Zou, Jui-Ting Hung, Yi-Bin Hwang, Li-Chung Sun
  • System with at least two BIOS memories for starting the system
    Patent number: 7996667
    Abstract: A system with at least two basic input-output system (BIOS) memories includes a chip unit, a control unit, and two or more BIOS memories. The chip unit includes a control pin. The control unit includes an enable pin and N output pins. The enable pin of the control unit is connected to the control pin of the chip unit. Each of the N BIOS memories is connected to one of the N output pins of the control unit correspondingly. The chip unit is configured to start the control unit. The control unit is configured to start the N BIOS memories according to voltages of the output pins of the control unit. N is an integer greater than one.
    Type: Grant
    Filed: April 26, 2008
    Date of Patent: August 9, 2011
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Yi-Bin Hwang
  • POWER ADAPTER AND POWER SUPPLY METHOD THEREOF
    Publication number: 20100284206
    Abstract: A power adapter for an electronic device selectively works in different modes according to a working state signal of the electronic device. When the electronic device is powered off or on with a battery in a determined charge state, the power adapter controls a relay to turn off the relay to disconnect power to the electronic device.
    Type: Application
    Filed: June 8, 2009
    Publication date: November 11, 2010
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: FANG-TA TAI, CHEN-HSIANG LIN, LI-CHUNG SUN, TENG-FENG ZOU, JUI-TING HUNG, YI-BIN HWANG
  • CONTROL CIRCUIT FOR SWITCHING POWER SUPPLY
    Publication number: 20100220506
    Abstract: A control circuit for a switching power supply (SPS) includes power input and output interfaces, a relay, a relay driving circuit, a microprocessor, and an alternating current/directing current (AC/DC) converter. The power input interface receives an external alternating current (AC) power signal, and transmits the AC power signal to the SPS via the power output interface. The AC/DC converter transforms the AC power signal into a direct current (DC) power signal to supply for the relay, the relay driving circuit, and the microprocessor. When a computer is turned on, the microprocessor sends a first control signal to control the relay driving circuit to drive the relay to connect the power input and output interfaces. When the computer is turned off, the microprocessor sends a second control signal to control the relay driving circuit to drive the relay to cut off connection between the power input and output interfaces.
    Type: Application
    Filed: April 2, 2009
    Publication date: September 2, 2010
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Fang-Ta Tai, Chen-Hsiang Lin, Teng-Feng Zou, Jui-Ting Hung, Yi-Bin Hwang, Li-Chung Sun
  • SYSTEM WITH AT LEAST TWO BIOS MEMORIES
    Publication number: 20090187754
    Abstract: A system with at least two basic input-output system (BIOS) memories includes a chip unit, a control unit, and two or more BIOS memories. The chip unit includes a control pin. The control unit includes an enable pin and N output pins. The enable pin of the control unit is connected to the control pin of the chip unit. Each of the N BIOS memories is connected to one of the N output pins of the control unit correspondingly. The chip unit is configured to start the control unit. The control unit is configured to start the N BIOS memories according to voltages of the output pins of the control unit. N is an integer greater than one.
    Type: Application
    Filed: April 26, 2008
    Publication date: July 23, 2009
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: YI-BIN HWANG