[특허]UPS with input commutation between AC and DC sources of power

UPS with input commutation between AC and DC sources of power 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H02J-009/00
출원번호	US-0788947 (1991-11-07)
발명자 / 주소	Severinsky Alex J. (Silver Spring MD)
출원인 / 주소	Premier Power, Inc. (McLean VA 02)
인용정보	피인용 횟수 : 60 인용 특허 : 0

초록 ▼

An uninterruptible power supply is disclosed which is cheaper and more adaptable to various utility service inputs than presently available power supplies. A storage capacitor is placed between a boost AC/DC converter at the input and a DC/AC inverter at the output. A storage battery for maintaining constant voltage should the utility service power be interrupted is placed at the input, before the boost converter. Thus, a small battery is required because the boost converter is capable of boosting the battery\s voltage to the voltage contained on the storage capacitor. A bidirectional semiconductor switch is provided in the boost converter to allow current to flow in both directions between its switch terminals when a AC input is applied. Appropriate control circuitry is provided which monitors the voltage at specific points throughout the circuit and controls operation of the bidirectional switch. Additionally, the control circuitry controls operation of a relay to switch power input between the utility service input and the storage battery depending in part upon the state of the utility service input voltage.

대표청구항 ▼

An uninterruptible power supply, said power supply comprising: AC input terminal means for receiving a first AC voltage from an AC power source; DC input terminal means for receiving a first DC voltage from a DC power source; AC output terminal means for connecting to a load; converter means for converting said first AC voltage to a second DC voltage across electrical charge storage means coupled to said converter means, said second DC voltage being larger than the maximum peak voltage of said first AC voltage and said first DC voltage; switching means coupled to said AC power source and said DC power source for selectively connecting said AC power source or said DC power source to said converter means; inverter means coupled to said electrical charge storage means for receiving said second DC voltage and inverting said second DC voltage to a second AC voltage, said second AC voltage being coupled to said AC output terminal means; and control means coupled to said switching means for controlling the operation of said switching means, said control means operating said switching means to connect said AC power source to said converter means only when said first AC voltage is within a predetermined range and operating to connect said DC power source to said converter means when said first AC voltage is outside of said range.

이 특허를 인용한 특허 (60)

Wenzel Edward P., AC and DC input power supply.
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Moth, Klaus, Apparatus and method for employing a DC source with an uninterruptible power supply.
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Richmond Andrew Real, Battery backup power supply.
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Reddy Anantha Baddam (San Diego CA), Boost-input backed-up uninterruptible power supply.
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Hung Sheng-Chuan,TWX, DC power supply device adapted to operate with an AC power supply or with a car battery via a cigarette lighter.
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Johnson, Jr.,Robert W., Devices and methods for detecting operational failures of relays.
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McDonald, Gilbert; Lord, Charles; Smith, Steve; DuBose, Gary, Dual input AC/DC to programmable DC output converter.
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Strojny Lawrence J. ; Duenkel Gerald A., Electric actuator return-to-normal using capacitor energy storage with regulated output.
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Crosman ; III Alexander C. ; Schubert Thomas ; Sandman William R., Emergency power supply.
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Heneman Helmuth J., Energy storage and distribution system.
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Plahn Paul H. (Plymouth MN) Koenig David J. (Wyoming MN) Miller Mike C. (Coon Rapids MN), Generator power system and method.
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Karol, Gregory M.; Pagella, James; Porter, John Meldrum; Deurse, Ludi Van, Industrial power supply modules.
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Chang, Herlin; Huang, Min-Huang, Lighting equipment built-in on-line uninterruptible power system capable of outputting AC sinusoidal power from a single DC source.
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Gabillet Jean-Paul,FRX, Method and a system for electrically powering electronic equipment.
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Mutabdzija, Srdan; Demissie, Eyob; Masciarelli, Francis J.; Falcinelli, Michael, Method and apparatus for monitoring energy storage devices.
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Hjort, Thomas Enne; Pedersen, Michael; Mathiesen, Henrik; Nielsen, Henning Roar; Olsen, Richard Dyrmose, Method and apparatus for providing uninterruptible power.
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Hjort, Thomas Enné; Pedersen, Michael; Mathiesen, Henrik; Nielsen, Henning Roar; Olsen, Richard Dyrmose, Method and apparatus for providing uninterruptible power.
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Hjort,Thomas Enn챕; Nielsen,Henning Roar, Method and apparatus for providing uninterruptible power.
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Hjort,Thomas Enn��; Nielsen,Henning Roar, Method and apparatus for providing uninterruptible power.
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Masciarelli, Francis J.; Mutabdzija, Srdan; Demissie, Eyob; Ingemi, Michael J.; Charlantini, Donald Lee, Methods and apparatus for providing uninterruptible power.
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Masciarelli, Francis J.; Mutabdzija, Srdan; Demissie, Eyob; Ingemi, Michael J.; Charlantini, Donald Lee, Methods and apparatus for providing uninterruptible power.
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Masciarelli, Francis J.; Mutabdzija, Srdan; Demissie, Eyob; Ingemi, Michael J.; Charlantini, Donald Lee, Methods and apparatus for providing uninterruptible power.
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Masciarelli,Francis J.; Mutabdzija,Srdan; Demissie,Eyob; Ingemi,Michael J.; Charlantini,Donald Lee, Methods and apparatus for providing uninterruptible power.
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Briggs, James; Schuttler, David; Mutabdzija, Srdan; Falcinelli, Michael, Modular UPS.
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Briggs, James; Schuttler, David; Mutabdzija, Srdan; Falcinelli, Michael, Modular UPS.
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Briggs,James; Schuttler,David; Mutabdzija,Srdan; Falcinelli,Michael, Modular UPS.
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O'Sullivan George A. ; O'Sullivan Joseph A., Multimode power processor.
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Levran Alexander ; Nowosielski Joseph Marion ; Ton-That Giao Mong ; Rajagopalan Ramamoorthy ; Mabboux Henri,FRX ; Mazur David, Power conversion and distribution system.
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Lu, Liang-Wei; Peng, Yung-Wei; Lin, Jui-Ling, Power conversion device and control method thereof.
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Kitada, Hiroshi, Power converter.
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Raddi William J. ; Paulakonis Joseph C. ; Johnson ; Jr. Robert W., Power factor corrected UPS maintaining neutral integrity and methods of operation thereof.
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Raddi, William J.; Paulakonis, Joseph C.; Johnson, Jr., Robert W., Power factor corrected UPS with improved connection of battery to neutral.
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Raddi, William J.; Paulakonis, Joseph C.; Johnson, Jr., Robert W., Power factor corrected UPS with improved connection of battery to neutral.
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Raddi,William J.; Paulakonis,Joseph C.; Johnson, Jr.,Robert W., Power factor corrected UPS with improved connection of battery to neutral.
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William J. Raddi ; Joseph C. Paulakonis ; Robert W. Johnson, Jr., Power factor corrected UPS with improved connection of battery to neutral.
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Raddi, William J.; Paulakonis, Joseph C.; Johnson, Jr., Robert W., Power factor corrected UPS with improved connection of battery to neutral and methods of operation thereof.
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Stevens Carlile, Power quality and demand management module.
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Rebbereh, Carsten, Power supply apparatus for field devices.
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Ghosh, Rajesh; Lipare, Mahendrakumar; Klikic, Damir, Single-battery power topologies for online UPS systems.
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Suranyi Gabriel G., System and method for improving the efficiency of reserve battery-powered, partitioned power conversion systems under l.
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Isaac L. Flory, IV, System for providing auxiliary power to lighting unit for heavy equipment having a direct current power supply and no uninterruptible power supply.
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Klikic, Damir; Prasad, Pyboyina Msvvsv; Ghosh, Rajesh; Agrawal, Mahima, Systems and methods for uninterruptible power supply control.
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Goldstein Leonard (Clifton VA) Baz Mohammad (Fairfax Station VA), Tactical power adapter.
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Schultz, Lynn Ernest; Pendleton, Noah L.; Deokar, Vishwas Mohaniraj, UPS mechanical transfer relay arc mitigation.
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Klikic, Damir; Beg, Mirza A.; Melanson, Mark R.; Kotlyar, Edward; Samstad, Jeffrey B., Uninterruptible power supply.
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Klikic, Damir; Beg, Mirza A.; Melanson, Mark R.; Kotlyar, Edward; Samstad, Jeffrey B., Uninterruptible power supply.
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Klikic, Damir; Beg, Mirza A.; Melanson, Mark R.; Kotlyar, Edward; Samstad, Jeffrey B., Uninterruptible power supply.
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Klikic, Damir; Beg, Mirza A.; Melanson, Mark R.; Kotlyar, Edward; Samstad, Jeffrey B., Uninterruptible power supply.
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Klikic,Damir; Beg,Mirza A.; Melanson,Mark R.; Kotlyar,Edward; Samstad,Jeffrey B., Uninterruptible power supply.
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Zak Alexander (Ashkelon ILX), Uninterruptible power supply based on non-invasive connection of backup circuit to switch power supply.
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Cui, Zhaoxue, Uninterruptible power supply circuit.
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Cheng Shui-Chu,TWX, Uninterruptible power supply with AC sine wave output and energy recycle function.
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Gupta Suresh C. (Los Alamitos CA), Uninterruptible power supply with a back-up battery coupled across the a.c. input.
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A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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UPS with input commutation between AC and DC sources of power 원문보기

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UPS with input commutation between AC and DC sources of power 원문보기

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