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).
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Patent number: 8542001Abstract: 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: GrantFiled: June 15, 2010Date of Patent: September 24, 2013Assignee: Zippy Technology Corp.Inventors: Tsun-Te Shih, Yu-Yuan Chang, Yi-Hua Wang, Heng-Chia Chang
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Publication number: 20130049463Abstract: 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: ApplicationFiled: August 26, 2011Publication date: February 28, 2013Inventors: Tsun-Te SHIH, Yu-Yuan Chang, Li-Wei Lu, Heng-Chia Chang, Jui-Hao Pan
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Patent number: 8364990Abstract: 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: GrantFiled: December 7, 2009Date of Patent: January 29, 2013Assignee: Zippy Technology Corp.Inventors: Tsun-Te Shih, Yu-Yuan Chang, Heng-Chia Chang, Chieh Yang, Kuang-Lung Shih
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Publication number: 20110304312Abstract: 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: ApplicationFiled: June 15, 2010Publication date: December 15, 2011Inventors: Tsun-Te SHIH, Yu-Yuan Chang, Yi-Hua Wang, Heng-Chia Chang
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Patent number: 8072194Abstract: 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: GrantFiled: August 4, 2008Date of Patent: December 6, 2011Assignee: Zippy Technology Corp.Inventors: Yu-Yuan Chang, Heng-Chia Chang
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Patent number: 8014182Abstract: 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: GrantFiled: November 26, 2008Date of Patent: September 6, 2011Assignee: Zippy Technology Corp.Inventors: Heng-Chia Chang, Yi-Hua Wang
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Publication number: 20110138199Abstract: 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: ApplicationFiled: December 7, 2009Publication date: June 9, 2011Inventors: Tsun-Te SHIH, Yu-Yuan Chan, Heng-Chia Chang, Chieh Yang, Kuang-Lung Shih
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Patent number: 7939963Abstract: 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: GrantFiled: November 6, 2008Date of Patent: May 10, 2011Assignee: Zippy Technology Corp.Inventors: Heng-Chia Chang, Yi-Hua Wang
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Publication number: 20100127674Abstract: 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: ApplicationFiled: November 26, 2008Publication date: May 27, 2010Inventors: Heng-Chia Chang, Yi-Hua Wang
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Publication number: 20100109432Abstract: 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: ApplicationFiled: November 6, 2008Publication date: May 6, 2010Inventors: Heng-Chia CHANG, Yi-Hua Wang
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Publication number: 20100026274Abstract: 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: ApplicationFiled: August 4, 2008Publication date: February 4, 2010Inventors: Yu-Yuan Chang, Heng-Chia Chang
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Patent number: 7535306Abstract: 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: GrantFiled: December 21, 2006Date of Patent: May 19, 2009Inventor: Heng-Chia Chang
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Publication number: 20070205838Abstract: 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: ApplicationFiled: December 21, 2006Publication date: September 6, 2007Inventor: Heng-Chia Chang
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Publication number: 20050095980Abstract: 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: ApplicationFiled: May 10, 2004Publication date: May 5, 2005Applicant: BLUE7 COMMUNICATIONSInventor: Heng-Chia Chang