Patents by Inventor Heng-Chia Chang

Heng-Chia Chang 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).

  • Patent number: 8542001
    Abstract: In a power circuit for reducing standby power consumption, a power supply is defined to include a primary power system and a stationary power system. The stationary power system outputs a stationary power after obtaining an input power. A control unit controls ON/OFF of the primary power system, obtains the stationary power as the required power, and receives a PS ON/OFF signal for triggering the control unit, so that the control unit controls the primary power system to supply a primary output power. The power supply includes a switch unit having two ends connected to a power circuit for outputting the stationary power and a virtual load respectively. The PS ON/OFF signal is provided for controlling the switch unit. If the switch unit does not receive the PS ON/OFF signal, it is OFF in a standby mode to avoid unnecessary power consumption of the virtual load.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: September 24, 2013
    Assignee: Zippy Technology Corp.
    Inventors: Tsun-Te Shih, Yu-Yuan Chang, Yi-Hua Wang, Heng-Chia Chang
  • Publication number: 20130049463
    Abstract: A redundant power system aims to provide multiple main output power and multiple standby power to drive a plurality of loads operating in an operating mode or a standby mode. The redundant power system includes a plurality of power supplies and a back panel. Each power supply provides a main output power and a standby power. The back panel has a power bus path to converge the main output power. The power bus path is divided into multiple main power output paths each being controlled by a remote ON/OFF switch to determine whether to perform output, and multiple standby power output paths each has a conversion unit located thereon. The conversion unit converts the power in the power bus path and provides a simulated standby power to the loads in a normal.
    Type: Application
    Filed: August 26, 2011
    Publication date: February 28, 2013
    Inventors: Tsun-Te SHIH, Yu-Yuan Chang, Li-Wei Lu, Heng-Chia Chang, Jui-Hao Pan
  • Patent number: 8364990
    Abstract: A remote controlled power supply system includes a data processing system and at least one power supply. The data processing system outputs a power source ON/OFF signal to drive the power supply to switch either in a working state or a sleeping state. The power supply includes a signal integration unit and a communication unit. The signal integration unit receives a working parameter of the power supply and outputs a first ON/OFF signal to drive the data processing system to output the power ON/OFF signal to switch the state of the power supply state. The communication unit is linked to the signal integration unit to receive the working parameter and output the working parameter to a communication network. The administrators can acquire the working parameter through a remote control equipment and control the power supply at the remote site.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: January 29, 2013
    Assignee: Zippy Technology Corp.
    Inventors: Tsun-Te Shih, Yu-Yuan Chang, Heng-Chia Chang, Chieh Yang, Kuang-Lung Shih
  • Publication number: 20110304312
    Abstract: In a power circuit for reducing standby power consumption, a power supply is defined to include a primary power system and a stationary power system. The stationary power system outputs a stationary power after obtaining an input power. A control unit controls ON/OFF of the primary power system, obtains the stationary power as the required power, and receives a PS ON/OFF signal for triggering the control unit, so that the control unit controls the primary power system to supply a primary output power. The power supply includes a switch unit having two ends connected to a power circuit for outputting the stationary power and a virtual load respectively. The PS ON/OFF signal is provided for controlling the switch unit. If the switch unit does not receive the PS ON/OFF signal, it is OFF in a standby mode to avoid unnecessary power consumption of the virtual load.
    Type: Application
    Filed: June 15, 2010
    Publication date: December 15, 2011
    Inventors: Tsun-Te SHIH, Yu-Yuan Chang, Yi-Hua Wang, Heng-Chia Chang
  • Patent number: 8072194
    Abstract: A boost snubber circuit structure applied in a power supply having a boost circuit and a power conversion unit, wherein the boost circuit includes a boost unit connected to a switch element, a boost control unit for generating a driving signal to drive the switch element to control the charge/discharge of the boost unit, and a boost snubber unit for obtaining a voltage difference between a reference voltage and a detection signal and modulating the magnitude of the reference voltage or the detection signal to change the voltage difference and control the duration of outputting the driving signal. The voltage difference between the reference voltage and the detection signal determines the duration of outputting the driving signal. By controlling the voltage difference between the detection signal and the boost level, the invention prevents an occurrence of an inrush current caused by a too-large duration of generating the driving signal.
    Type: Grant
    Filed: August 4, 2008
    Date of Patent: December 6, 2011
    Assignee: Zippy Technology Corp.
    Inventors: Yu-Yuan Chang, Heng-Chia Chang
  • Patent number: 8014182
    Abstract: A power supply device of controlling feedback synchronization is connected to an electric power source for obtaining an input power and includes first and second converters for modulating the input power. The first and second converters include first and second output terminals for providing first and second output power respectively. The power supply device further includes a feedback synchronization unit electrically coupled to the first and second output terminals of the first and second converters for obtaining first and second feedback signals, and producing and transmitting a synchronous feedback signal to the second converter according to a voltage difference of the first and second feedback signals to synchronizing output voltage level of the second converter with the first converter. The aforementioned circuit can control the synchronization of a voltage boost time and output time of the first and second converters.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: September 6, 2011
    Assignee: Zippy Technology Corp.
    Inventors: Heng-Chia Chang, Yi-Hua Wang
  • Publication number: 20110138199
    Abstract: A remote controlled power supply system includes a data processing system and at least one power supply. The data processing system outputs a power source ON/OFF signal to drive the power supply to switch either in a working state or a sleeping state. The power supply includes a signal integration unit and a communication unit. The signal integration unit receives a working parameter of the power supply and outputs a first ON/OFF signal to drive the data processing system to output the power ON/OFF signal to switch the state of the power supply state. The communication unit is linked to the signal integration unit to receive the working parameter and output the working parameter to a communication network. The administrators can acquire the working parameter through a remote control equipment and control the power supply at the remote site.
    Type: Application
    Filed: December 7, 2009
    Publication date: June 9, 2011
    Inventors: Tsun-Te SHIH, Yu-Yuan Chan, Heng-Chia Chang, Chieh Yang, Kuang-Lung Shih
  • Patent number: 7939963
    Abstract: A power supply to provide multiple synchronous outputs includes a standby power system to receive input power and regulate to become standby power and a main power system to receive the input power and regulate to become main output power. The main power system has a rectification output unit to deliver the main output power. The power supply further has at least one delay trigger unit to receive the main output power and a voltage regulation output unit. The delay trigger unit sets a voltage judgment level and determines whether to output a trigger signal based on the main output power being greater or smaller than the voltage judgment level. The voltage regulation output unit can be activated by getting the standby power. According to the generation time series of the trigger signal, the time series to generate the secondary output power can be regulated.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: May 10, 2011
    Assignee: Zippy Technology Corp.
    Inventors: Heng-Chia Chang, Yi-Hua Wang
  • Publication number: 20100127674
    Abstract: A power supply device of controlling feedback synchronization is connected to an electric power source for obtaining an input power and includes first and second converters for modulating the input power. The first and second converters include first and second output terminals for providing first and second output power respectively. The power supply device further includes a feedback synchronization unit electrically coupled to the first and second output terminals of the first and second converters for obtaining first and second feedback signals, and producing and transmitting a synchronous feedback signal to the second converter according to a voltage difference of the first and second feedback signals to synchronizing output voltage level of the second converter with the first converter. The aforementioned circuit can control the synchronization of a voltage boost time and output time of the first and second converters.
    Type: Application
    Filed: November 26, 2008
    Publication date: May 27, 2010
    Inventors: Heng-Chia Chang, Yi-Hua Wang
  • Publication number: 20100109432
    Abstract: A power supply to provide multiple synchronous outputs includes a standby power system to receive input power and regulate to become standby power and a main power system to receive the input power and regulate to become main output power. The main power system has a rectification output unit to deliver the main output power. The power supply further has at least one delay trigger unit to receive the main output power and a voltage regulation output unit. The delay trigger unit sets a voltage judgment level and determines whether to output a trigger signal based on the main output power being greater or smaller than the voltage judgment level. The voltage regulation output unit can be activated by getting the standby power. According to the generation time series of the trigger signal, the time series to generate the secondary output power can be regulated.
    Type: Application
    Filed: November 6, 2008
    Publication date: May 6, 2010
    Inventors: Heng-Chia CHANG, Yi-Hua Wang
  • Publication number: 20100026274
    Abstract: A boost snubber circuit structure applied in a power supply having a boost circuit and a power conversion unit, wherein the boost circuit includes a boost unit connected to a switch element, a boost control unit for generating a driving signal to drive the switch element to control the charge/discharge of the boost unit, and a boost snubber unit for obtaining a voltage difference between a reference voltage and a detection signal and modulating the magnitude of the reference voltage or the detection signal to change the voltage difference and control the duration of outputting the driving signal. The voltage difference between the reference voltage and the detection signal determines the duration of outputting the driving signal. By controlling the voltage difference between the detection signal and the boost level, the invention prevents an occurrence of an inrush current caused by a too-large duration of generating the driving signal.
    Type: Application
    Filed: August 4, 2008
    Publication date: February 4, 2010
    Inventors: Yu-Yuan Chang, Heng-Chia Chang
  • Patent number: 7535306
    Abstract: An oscillator coupling system includes a plurality of oscillating members and a plurality of delay members connecting at least two of the oscillating members. Between the delay members is a specific phase or time delay relationship such that characteristics of phase or frequency noise suppression correlation of the two oscillating members are coupled to each other by the delay members, thereby reducing noise autocorrelation while the oscillator coupling system is in operation, enhancing phase or frequency noise suppression, using no bulky elements such as solid state circulators, isolators and resonators, reducing signal distortion, and increasing system stability.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: May 19, 2009
    Inventor: Heng-Chia Chang
  • Publication number: 20070205838
    Abstract: An oscillator coupling system includes a plurality of oscillating members and a plurality of delay members connecting at least two of the oscillating members. Between the delay members is a specific phase or time delay relationship such that characteristics of phase or frequency noise suppression correlation of the two oscillating members are coupled to each other by the delay members, thereby reducing noise autocorrelation while the oscillator coupling system is in operation, enhancing phase or frequency noise suppression, using no bulky elements such as solid state circulators, isolators and resonators, reducing signal distortion, and increasing system stability.
    Type: Application
    Filed: December 21, 2006
    Publication date: September 6, 2007
    Inventor: Heng-Chia Chang
  • Publication number: 20050095980
    Abstract: The generator generates UWB pulses by splitting a modulated signal into first and second signals, phase shifting the first signal 180°, and combining the phase shifted signal with the second signal to form a combined signal. The combined signal then can be filtered to remove either positive or negative amplitudes.
    Type: Application
    Filed: May 10, 2004
    Publication date: May 5, 2005
    Applicant: BLUE7 COMMUNICATIONS
    Inventor: Heng-Chia Chang