Patents Assigned to Cyber Power System Inc.
  • Patent number: 8338984
    Abstract: An uninterruptible power supply supporting active loads includes a charge and discharge module having a battery set and a charger charging the battery set with an input power, a switch circuit having at least two active switches connected to the battery set, a dynamic PWM control module connected with each of the active switches of the switch circuit, alternately outputting duty cycles composed of low-frequency square wave and high-frequency square wave and alternately controlling each of the active switches to turn on or off, and a transformer having a primary side connected with the switch circuit and a secondary side whose two terminals are connected with an output capacitor generating a filtering function in collaboration with an leakage inductor in the secondary side of the transformer. The uninterruptible power supply generates a quasi-continuous output satisfying the hold-up time demanded by an active load.
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: December 25, 2012
    Assignee: Cyber Power System Inc.
    Inventors: Shou-Ting Yeh, Yung-Mei Lin, Hung-Ming Hsieh
  • Patent number: 8314593
    Abstract: A power-saving line interactive UPS has a power switch set, a low-frequency transformer, a full-bridge circuit, a main controller, a charge and discharge mode controller, a rechargeable battery and a high-frequency charging circuit. The high-frequency circuit is connected between an AC power input terminal and the rechargeable battery to convert the AC power into a DC power and charge the rechargeable battery. Therefore, when the AC power is normally supplied and the power capacity of the rechargeable battery is not full, the high-frequency charging circuit is activated to charge the rechargeable battery without charging the rechargeable battery through the low-frequency transformer and the full-bridge switching circuit, thereby effectively reducing overall power consumption.
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: November 20, 2012
    Assignee: Cyber Power System Inc.
    Inventors: Shou-Ting Yeh, Yung-Mei Lin
  • Patent number: 8233296
    Abstract: A front-end circuit of a power converter has a power connection wiring detecting circuit, a power switch and a control unit. The power connection wiring detecting circuit is connected to an AC power. The control unit is connected to the power connection wiring detecting circuit. The power switch is connected to the power loop. The control unit turns on or off the AC power loop through the power switch. When the power connection wiring is correctly connected with the AC power, the control unit turns on the power switch and the front-end circuit outputs the AC power to the back-end circuit. When the power connection wiring is incorrectly connected with the AC power, the control unit turns off the power switch and the AC power is not outputted to the back-end circuit.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: July 31, 2012
    Assignee: Cyber Power System Inc.
    Inventors: Yuan-Liang Hsu, Han-Yang Huang, Chih-Wei Hsiao
  • Publication number: 20110195599
    Abstract: A flat restorable cable has a cable body and two connectors. The cable body is wound to have a spirally wound form. The cable body is extended by pulling two ends of the cable, and restores back to the original spirally wound form once either end of the cable is released. The two connectors are securely mounted to respective ends of the cable body and used to respectively connect with two external compatible interfaces. As a result of less part required, compact size and thin thickness, the flat restorable cable addresses an inexpensive and portable solution to connect two electronic devices over a short distance.
    Type: Application
    Filed: February 6, 2010
    Publication date: August 11, 2011
    Applicant: CYBER POWER SYSTEM INC.
    Inventors: Lien-Hsun HO, Hsiung-Kuei CHENG
  • Patent number: 7982339
    Abstract: A controlling method of a battery mode of a UPS for an active PFC power supply has the following acts of monitoring the AC power source and determining whether the AC power source is terminated or not, wherein if a determining result is positive, the controlling method proceeds to next act, and switching to the battery mode and converting a DC power source of a battery to a square wave. The square wave has a period, and each half of the period is alternately constituted by at least two ON times and at least two OFF times, and each of the at least two OFF times is equal to or less than a hold-up time of the active PFC load having a hold-up time circuit. Therefore, the voltage of the bulk capacitor of the active PFC power supply under a discharge condition is not lower than the low threshold voltage, since the OFF time of the square wave signal will be kept equal to or less than the hold-up time.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: July 19, 2011
    Assignee: Cyber Power System Inc.
    Inventors: Shou-Ting Yeh, Yung-Mei Lin
  • Patent number: 7952030
    Abstract: A wire guide for an electronic device has a base being mounted in the electronic device and a protecting tube being pivotally mounted in the base. Wires of the electronic device are mounted through the protecting tube so the wires pivot smoothly to connect the electronic device conveniently to a power supply. Therefore, The wires do not have to be bent or forced so the electronic device is more convenient to use, and safer since the wires and protective tube are not snapped easily.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: May 31, 2011
    Assignee: Cyber Power System Inc.
    Inventors: Lien-Hsun Ho, Hsiung-Kuei Cheng, Chung-Chien Tseng
  • Publication number: 20110095727
    Abstract: A power-saving line interactive UPS has a power switch set, a low-frequency transformer, a full-bridge circuit, a main controller, a charge and discharge mode controller, a rechargeable battery and a high-frequency charging circuit. The high-frequency circuit is connected between an AC power input terminal and the rechargeable battery to convert the AC power into a DC power and charge the rechargeable battery. Therefore, when the AC power is normally supplied and the power capacity of the rechargeable battery is not full, the high-frequency charging circuit is activated to charge the rechargeable battery without charging the rechargeable battery through the low-frequency transformer and the full-bridge switching circuit, thereby effectively reducing overall power consumption.
    Type: Application
    Filed: October 22, 2009
    Publication date: April 28, 2011
    Applicant: CYBER POWER SYSTEM INC.
    Inventors: Shou-Ting YEH, Yung-Mei LIN
  • Patent number: 7911085
    Abstract: The power saving uninterruptible power supply (UPS) has a first and second switches, an energy spared switch, a transformer, an automatic voltage regulator (AVR), a charger-and-inverter, a normal mode determination unit and an electric switch. When the utility power is stable, the first and second switches are connected together to supply the utility power to a load. At the time, the energy spared switch is physically disconnected with the utility power and the transformer and the AVR. Therefore, the transformer and AVR do not consume more energy of the utility power and the transforming efficiency of the UPS is increased.
    Type: Grant
    Filed: July 27, 2009
    Date of Patent: March 22, 2011
    Assignee: Cyber Power System Inc.
    Inventors: Lien-Hsun Ho, Shou-Ting Yeh, Hung-Ming Hsieh
  • Publication number: 20100237701
    Abstract: A controlling method of a battery mode of a UPS for an active PFC power supply has following acts of monitoring the AC power source and determining whether the AC power source is terminated or not; wherein if a determining result is positive go to next act; and switching to the battery mode and outputting a square wave power source. The square wave power source has a period, and each half of the period is alternately constituted by at least two ON times and at least two OFF times, and each of the at least two OFF times is equal or smaller than a hold-up time of the active PFC load. Therefore, the voltage of the bulk capacitor of the active PFC power supply at discharge condition is not lower than the low threshold voltage, since the OFF time of the square wave signal will be kept to be equal or less than the hold-up time.
    Type: Application
    Filed: March 18, 2009
    Publication date: September 23, 2010
    Applicant: CYBER POWER SYSTEM INC.
    Inventors: Shou-Ting Yeh, Yung-Mei Lin
  • Publication number: 20100163279
    Abstract: A wire guide for an electronic device has a base being mounted in the electronic device and a protecting tube being pivotally mounted in the base. Wires of the electronic device are mounted through the protecting tube so the wires pivot smoothly to connect the electronic device conveniently to a power supply. Therefore, The wires do not have to be bent or forced so the electronic device is more convenient to use, and safer since the wires and protective tube are not snapped easily.
    Type: Application
    Filed: December 30, 2008
    Publication date: July 1, 2010
    Applicant: CYBER POWER SYSTEM INC.
    Inventors: Lien-Hsun Ho, Hsiung-Kuei Cheng, Chung-Chien Tseng
  • Publication number: 20100064148
    Abstract: A universal series bus (USB) power supply has a DC power source, a USB power interface and a voltage modulation module. The USB power interface is for connecting to an electronic device that stores a default D+ voltage and a default D? voltage. The voltage modulation module connects to and outputs signals to the D+ and D? terminals of the USB power interface. If voltage levels of the output signals are not respectively identical to the default D+ and D? voltages, the voltage modulation module changes the voltage levels of the signals output to the D+ and D? terminals of the USB power interface until the voltage levels of the output signals are respectively identical to the default D+ and D? voltages. Therefore, the USB power supply may be applied to any kind of electronic device that is charged over a USB interface.
    Type: Application
    Filed: September 10, 2008
    Publication date: March 11, 2010
    Applicant: CYBER POWER SYSTEM INC.
    Inventors: Lien-Hsun Ho, Yi-Chang Chou, Chun-Shih Yi
  • Patent number: 7632152
    Abstract: A DC/AC adapter assembly has a DC/AC adapter and a cable. The cable transmits a power-overloading signal to the DC/AC adapter indicating whether power-overloading is occurring in the cable. The DC/AC adapter includes a controller circuit for controlling and adjusting an output alternating current of the DC/AC adapter based on the power-overloading signal to reduce power-overloading occurring in the cable.
    Type: Grant
    Filed: November 27, 2006
    Date of Patent: December 15, 2009
    Assignee: Cyber Power System Inc.
    Inventors: Lien-Hsun Ho, Yuan-Liang Hsu, Shou-Ting Yeh, Chuan-Hsing Wu, Grant Chen
  • Publication number: 20090059636
    Abstract: A power adapter has a body, a pair of blades, a DC output terminal, an AC to DC circuit, a node and a storage unit. The blades are mounted in and protrude from the body to connect to an AC power source to obtain AC power. The DC output terminal is mounted on the body to connect to a load. The AC to DC circuit is mounted in the body, converts the AC power into DC power and has an input terminal and an output terminal. The node is defined between the DC output terminal and the AC to DC circuit. The storage unit is connected to the node to store the DC power output from the AC to DC circuit and provide a stored DC output to the DC output terminal.
    Type: Application
    Filed: August 29, 2007
    Publication date: March 5, 2009
    Applicant: CYBER POWER SYSTEM INC.
    Inventors: Lien-Hsun HO, Yuan-Liang HSU
  • Patent number: 7458847
    Abstract: A connection assembly for offsetting tilting caused by weight difference between two objects includes a first male connector, a second male connector linearly misaligned with the first male connector, a first female connector and a second female connector linearly misaligned with the first female connector. Both the first and second male connectors are formed on a first object and both the first and second female connectors are formed on a second object. Due to the misaligned relationship, weight of the combination between the first object and the second object is redistributed to avoid tilting.
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: December 2, 2008
    Assignee: Cyber Power System Inc.
    Inventors: Yuan-Liang Hsu, Lien-Hsun Ho, Tung-Yuan Chen, Chao-Yi Wu
  • Patent number: 7413462
    Abstract: A shell for an electrical appliance includes a base, a cover, and a plug-receiving assembly. The plug-receiving assembly includes a recess attached to the cover for receiving a plug of the electrical appliance. The recess has a bottom and two opposing sides. The bottom supports the plug, and the opposing sides have protrusions for retaining the plug in the recess. The plug-receiving assembly further includes a slanted guide formed on the bottom of the recess for guiding the plug in the recess. A user may remove the plug from the recess by the pulling an electrical wire attached to the plug to move the plug along the slanted guide and out from the recess. Additionally, the plug-receiving assembly may include a mounting grove adjacent to the slanted guide for retaining the electrical wire.
    Type: Grant
    Filed: June 12, 2006
    Date of Patent: August 19, 2008
    Assignee: Cyber Power System Inc.
    Inventors: Hsiung-Kuei Cheng, Jian-Hung Chen, Yuan-Liang Hsu, Lien-Hsun Ho
  • Patent number: 7413459
    Abstract: An auxiliary device for a connector has a body, a wire unit and plug. The wire unit is mounted securely in the body and extends out of the body from a first end of the body. The plug is formed on a second end of the body and is perpendicular to the wire unit. Therefore, the position of the wire unit is fixed when the plug is inserted into a socket.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: August 19, 2008
    Assignee: Cyber Power System Inc.
    Inventors: Lien-Hsun Ho, Yuan-Liang Hsu, Shou-Ting Yeh, Chuan-Hsing Wu, Tung-Yuan Chen, Chao-Yi Wu
  • Patent number: 7405544
    Abstract: A voltage regulating circuit has a first switch, a transformer and a second switch. The first switch has an input node, a first node and a second node. The transformer is connected to the switches has a first coil and a second coil. The first coil and the second coil respectively have an end, and the second coil is connected to the first coil in series at a node. The node between the first and second coils is connected to the second node of the first switch. The second switch is connected to the transformer and has a first node, a second node and an output node. The first node is connected to the end of the first coil. The second node is connected to the first node of the first switch. The transformer will not heat up when the transformer needs not to be used.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: July 29, 2008
    Assignee: Cyber Power System Inc.
    Inventors: Shou-Ting Yeh, Lien-Hsun Ho, Yuan-Liang Hsu
  • Patent number: D597403
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: August 4, 2009
    Assignee: Cyber Power System Inc.
    Inventors: Lien-Hsun Ho, Shou-Ting Yeh, Grant Chen, Hsiung-Kuei Cheng
  • Patent number: D606025
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: December 15, 2009
    Assignee: Cyber Power System Inc.
    Inventors: Hsiung-Kuei Cheng, Tung-Yuan Chen, Shou-Ting Yeh, Lien-Hsun Ho
  • Patent number: D661251
    Type: Grant
    Filed: February 9, 2010
    Date of Patent: June 5, 2012
    Assignee: Cyber Power System Inc.
    Inventors: Hsiung-Kuei Cheng, Huang-Chih Chen