Patents by Inventor Win-Sheng Cheng
Win-Sheng Cheng 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: 11525864Abstract: In a DC impedance measurement routine for a battery the current load from a source is initially set to a low setting. The system waits for a set time in this state for the voltage readings to stabilize. Once the voltage is stable at the low current setting, the current setting is changed to a high value and the voltage is read quickly. Then the current load is set back to the low setting immediately after the reading is made. Several consecutive measurements are performed by repeating the steps above. A DC impedance measurement system that can be used to carry out the measurement routine. A multi-battery system can be monitored via a DC impedance measurement system and the routine being performed on each battery.Type: GrantFiled: August 1, 2019Date of Patent: December 13, 2022Assignee: PALCELLs Technology, Inc.Inventor: Win Sheng Cheng
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Publication number: 20210033677Abstract: In a DC impedance measurement routine for a battery the current load from a source is initially set to a low setting. The system waits for a set time in this state for the voltage readings to stabilize. Once the voltage is stable at the low current setting, the current setting is changed to a high value and the voltage is read quickly. Then the current load is set back to the low setting immediately after the reading is made. Several consecutive measurements are performed by repeating the steps above. A DC impedance measurement system that can be used to carry out the measurement routine. A multi-battery system can be monitored via a DC impedance measurement system and the routine being performed on each battery.Type: ApplicationFiled: August 1, 2019Publication date: February 4, 2021Inventor: Win Sheng CHENG
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Patent number: 10295575Abstract: A current sensor includes a two-piece ferromagnetic core clamped together over a wire to be measured by a housing to form a ferromagnetic cylinder that concentrates the magnetic flux surrounding the electrical wire to be measured. By directing the magnetic flux to a Hall effect sensor, the current can be measured in the wire without cutting or modifying the wire.Type: GrantFiled: April 28, 2017Date of Patent: May 21, 2019Assignee: PALCELLs Technology, Inc.Inventors: Win Sheng Cheng, Jeff Yeu-Farn Hsieh, YiChien Hwang
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Publication number: 20190128967Abstract: A battery backup monitoring system includes a current sensor coupled to each respective battery. An intelligent isolated local charger/inverter is connected to each of the batteries. A battery monitor control board is also connected to each charger/inverter and a respective sensor. The control board includes a microprocessor, multiplexer, I/O control, impedance measurement circuitry and level shifter, ADC and physical memory. Software code is stored in the memory and executed by the processor to control operation of the battery backup system. The microprocessor-controlled system is configured to monitor battery current/voltage/temperature/impedance, battery health/capacity, and battery current over drain (low voltage) for protection of the batteries. The system provides an optimized and easily installed integrated solution for individual battery, multiple batteries or complex battery backup systems for various mission critical applications.Type: ApplicationFiled: October 30, 2018Publication date: May 2, 2019Inventors: Win Sheng CHENG, YiChien HWANG
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Patent number: 9929591Abstract: A smart power storage and distribution system for buildings includes an energy storage device included in an uninterruptible power system (UPS). A system controller controls charging of the energy storage system via one or both of conventional grid power and/or the alternative power. The system controller also operates a plurality of electrical switches to switch the building's power source between power from the utility grid and/or from the energy storage system. The controller also communicates with smart outlets within the building to selectively turn the power on/off to each smart outlet according to programmed logic or remote commands from a user. Various types of data can be monitored throughout the house/building and transmitted to the cloud. The source of electrical power to the building, or to charge the UPS, can be selectively switched to correspond to the most advantageous electrical grid monetary rates.Type: GrantFiled: August 4, 2015Date of Patent: March 27, 2018Inventors: Win Sheng Cheng, Jeff Yeu-Farn Hsieh, YiChien Hwang
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Publication number: 20170315156Abstract: A current sensor includes a two-piece ferromagnetic core clamped together over a wire to be measured by a housing to form a ferromagnetic cylinder that concentrates the magnetic flux surrounding the electrical wire to be measured. By directing the magnetic flux to a Hall effect sensor, the current can be measured in the wire without cutting or modifying the wire.Type: ApplicationFiled: April 28, 2017Publication date: November 2, 2017Inventors: Win Sheng Cheng, Jeff Yeu-Farn Hsieh, YiChien Hwang
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Publication number: 20160352141Abstract: Disclosed herein is an integrated direct-current based uninterrupted power supply system connected to an AC power input and a server or a computer, comprising: an AC adapter/charger unit for providing power the system and charging an energy storage unit; the energy store unit for monitoring, controlling and powering the system, and communicating the powering & battery capacity status with the server or computer, and a DC-to-DC converter circuit for providing multiple DC voltage rails.Type: ApplicationFiled: June 1, 2015Publication date: December 1, 2016Inventors: Win Sheng Cheng, Jeff Yeu-Farn Hsieh, YiChien Hwang
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Patent number: 9461482Abstract: A battery system includes a cell group in a lead-acid battery power system (battery system A) coupled to a battery power system (battery system B) having a different chemistry, such as lithium ion-based battery. Each battery system, A and B, are interconnected at specific cathode and anode contacts chosen based on the voltages range present at those points to prevent damage to the different battery systems. The worst-case voltage range of the battery system A at the connection points is higher than the worst case voltage range of battery system B. The battery system includes a battery management system (BMS) that monitors voltages at each cell level and that monitors current at the pack level. The BMS can also be configured to control conductivity between packs A and B, and to protect battery systems A and B from going out of normal operating conditions.Type: GrantFiled: June 26, 2014Date of Patent: October 4, 2016Inventors: Win Sheng Cheng, Jeff Yeu-Farn Hsieh, YiChien Hwang
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Publication number: 20160126783Abstract: A smart power storage and distribution system for buildings includes an energy storage device included in an uninterruptable power system (UPS). A system controller controls charging of the energy storage system via one or both of conventional grid power and/or the alternative power. The system controller also operates a plurality of electrical switches to switch the building's power source between power from the utility grid and/or from the energy storage system. The controller also communicates with smart outlets within the building to selectively turn the power on/off to each smart outlet according to programmed logic or remote commands from a user. Various types of data can be monitored throughout the house/building and transmitted to the cloud. The source of electrical power to the building, or to charge the UPS, can be selectively switched to correspond to the most advantageous electrical grid monetary rates.Type: ApplicationFiled: August 4, 2015Publication date: May 5, 2016Inventors: Win Sheng Cheng, Jeff Yeu-Farn Hsieh, YiChien Hwang
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Publication number: 20150295420Abstract: A battery system includes a cell group in a lead-acid battery power system (battery system A) coupled to a battery power system (battery system B) having a different chemistry, such as lithium ion-based battery. Each battery system, A and B, are interconnected at specific cathode and anode contacts chosen based on the voltages range present at those points to prevent damage to the different battery systems. The worst-case voltage range of the battery system A at the connection points is higher than the worst case voltage range of battery system B. The battery system includes a battery management system (BMS) that monitors voltages at each cell level and that monitors current at the pack level. The BMS can also be configured to control conductivity between packs A and B, and to protect battery systems A and B from going out of normal operating conditions.Type: ApplicationFiled: June 26, 2014Publication date: October 15, 2015Inventors: Win Sheng Cheng, Jeff Yeu-Farn Hsieh, YiChien Hwang
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Patent number: 7782313Abstract: Included are systems and methods for reducing power consumption in a computer system. At least one embodiment of a method, among others, includes processing data in a normal mode, receiving an indication of a transition into an idle mode, capturing at least one frame of display data, and transmitting the captured frame of display data for display during idle mode.Type: GrantFiled: October 31, 2006Date of Patent: August 24, 2010Assignee: Via Technologies, Inc.Inventors: Ruei-Ling Lin, Jiin Lai, Win Sheng-Cheng
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Publication number: 20080100606Abstract: Included are systems and methods for reducing power consumption in a computer system. At least one embodiment of a method, among others, includes processing data in a normal mode, receiving an indication of a transition into an idle mode, capturing at least one frame of display data, and transmitting the captured frame of display data for display during idle mode.Type: ApplicationFiled: October 31, 2006Publication date: May 1, 2008Inventors: Ruei-Ling Lin, Jiin Lai, Win Sheng-Cheng
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Patent number: 5247655Abstract: A circuit for waking a microprocessor from a sleep mode and providing it with its microprocessor clock long enough for a refresh, direct memory access (DMA) or master cycle operation to be done by external circuitry. The clock signal is then removed from the microprocessor to put it back into the sleep mode, thereby conserving energy. A hold signal is provided to the microprocessor to cause the microprocessor outputs to be put into a tri-state, high impedance condition, and thus relinquish control of the external bus to the external refreshing circuitry.Type: GrantFiled: November 7, 1989Date of Patent: September 21, 1993Assignee: Chips and Technologies, Inc.Inventors: Rashid N. Khan, Cheng Chen, Chien-Feng Cheng, Brian Verstegen, Win-Sheng Cheng, Aurav Gollabinnie