Patent application number | Description | Published |
20090231892 | UNINTERRUPTIBLE POWER SUPPLY - An uninterruptible power supply (UPS) system includes an AC power input configured to receive AC power from a single-phase AC power source or a multi-phase AC power source, a DC power source, an output circuit including a power output, a controllable switch configured to selectively couple at least one of the AC power input and the DC power source to the output circuit, and a processor coupled and configured to affect operation of the output circuit depending upon which of single-phase and multi-phase operation of the UPS is indicated. | 09-17-2009 |
20110043042 | UNINTERRUPTIBLE POWER SUPPLY - An uninterruptible power supply (UPS) system includes an AC power input configured to receive AC power from a single-phase AC power source or a multi-phase AC power source, a DC power source, an output circuit including a power output, a controllable switch configured to selectively couple at least one of the AC power input and the DC power source to the output circuit, and a processor coupled and configured to affect operation of the output circuit depending upon which of single-phase and multi-phase operation of the UPS is indicated. | 02-24-2011 |
20120313438 | UNINTERRUPTIBLE POWER SUPPLY - An uninterruptible power supply (UPS) system includes an AC power input configured to receive AC power from a single-phase AC power source or a multi-phase AC power source, a DC power source, an output circuit including a power output, a controllable switch configured to selectively couple at least one of the AC power input and the DC power source to the output circuit, and a processor coupled and configured to affect operation of the output circuit depending upon which of single-phase and multi-phase operation of the UPS is indicated. | 12-13-2012 |
20130002024 | SYSTEMS AND METHODS FOR OPERATING AN UNINTERRUPTIBLE POWER SUPPLY - An uninterruptible power supply includes a first input to receive input power from an input power source, an output to provide output power, a switch, a first logic power supply coupled to the switch, a back-up power source, a charger, a main logic power supply and power converter circuitry. The switch is configured to close when a characteristic of the input power is within a selected range. The first logic power supply is coupled to the switch and configured to receive input power from the input power source when the switch is closed. The first logic power supply has a first DC output. The back-up power source has a second DC output and is coupled to the first DC output at a common node. The charger has a third DC output and is coupled to the common node. The main logic power supply is coupled to the common node and is configured to receive at least one of the first DC output, the second DC output and the third DC output. The power converter circuitry is coupled to the backup power source and the first input and is configured to provides the output power derived from at least one of power at the first input and power from the backup power source. | 01-03-2013 |
Patent application number | Description | Published |
20090033283 | ADJUSTABLE BATTERY CHARGER FOR UPS - An uninterruptible power supply (UPS) having an adjustable battery charger that generates a charger current, and a controller, coupled to the adjustable battery charger, that receives a signal representative of a system constraint and provides a reference, based on the signal, to the adjustable battery charger to control an amplitude of the charger current supplied by the adjustable battery charger based on the system constraint. The system constraint may include, for example, a maximum input current to the UPS, maximum charging current of the battery cell, and maximum and/or minimum charger current values. | 02-05-2009 |
20090039706 | INPUT AND OUTPUT POWER MODULES CONFIGURED TO PROVIDE SELECTIVE POWER TO AN UNINTERRUPTIBLE POWER SUPPLY - An uninterruptible power supply (“UPS”) includes an input module having a plurality of inputs, and at least one jumper element configured to selectively couple at least one input of the plurality of inputs to at least one other input of the plurality of inputs. The plurality of inputs and the at least one jumper element may be constructed and arranged to selectively achieve the following configurations: single power feed, single phase input and single phase output; dual power feed, single phase input and single phase output; single power feed, three phase input and single phase output; dual power feed, three phase input and single phase output; single power feed, three phase input and three phase output; and dual power feed, three phase input and three phase output. Other embodiments and methods of selectively achieving multiple power configurations are also disclosed. | 02-12-2009 |
20100314944 | INPUT AND OUTPUT POWER MODULES CONFIGURED TO PROVIDE SELECTIVE POWER TO AN UNINTERRUPTIBLE POWER SUPPLY - An uninterruptible power supply (“UPS”) includes an input module having a plurality of inputs, and at least one jumper element configured to selectively couple at least one input of the plurality of inputs to at least one other input of the plurality of inputs. The plurality of inputs and the at least one jumper element may be constructed and arranged to selectively achieve the following configurations: single power feed, single phase input and single phase output; dual power feed, single phase input and single phase output; single power feed, three phase input and single phase output; dual power feed, three phase input and single phase output; single power feed, three phase input and three phase output; and dual power feed, three phase input and three phase output. Other embodiments and methods of selectively achieving multiple power configurations are also disclosed. | 12-16-2010 |
20130069432 | PARALLEL CONTROL AND PROTECTION FOR UPS - According to one aspect, embodiments of the invention provide a method of operating a UPS system having a first UPS and a second UPS coupled in parallel to provide output power to a load from a power source, each of the first UPS and the second UPS having an inverter and having a bypass switch, with each UPS configured to operate in one of an inverter mode in which output power is derived from the power source through the inverter, and a bypass mode in which output power is derived from the power source bypassing the inverter, the method comprising powering on the first UPS and the second UPS in the inverter mode of operation, designating one of the first UPS and the second UPS as a master UPS, and controlling the bypass switch of the first UPS and the bypass switch of the second UPS using the master UPS. | 03-21-2013 |
20130069434 | PARALLEL CONTROL AND PROTECTION FOR UPS - According to one aspect, embodiments of the invention provide a method of operating a UPS system having a first UPS, the method comprising powering on the first UPS, detecting a first signal at a first I/O of the first UPS using a first detection circuit of the first UPS, detecting a second signal at a second I/O of the first UPS using a second detection circuit of the first UPS, based on a status of the first signal and a status of the second signal, configuring the first UPS to operate in one of a master mode of operation and a controlled mode of operation. | 03-21-2013 |
20130069667 | FAULT DETECTION FOR PARALLEL INVERTERS SYSTEM - According to one aspect, embodiments of the invention provide a method of operating a UPS system having a first UPS and a second UPS, the method comprising coupling at least one control line between the first UPS and the second UPS to operate the first UPS and the second UPS in a parallel mode of operation, providing output power from each of the first UPS and the second UPS to a load, detecting a fault condition in the UPS system, decoupling the at least one control line, operating the first UPS in a diagnostic mode of operation, and determining if the fault condition is associated with the first UPS. | 03-21-2013 |
20140239723 | ADAPTIVE LOAD SHARING OF PARALLEL INVERTERS SYSTEM - According to one aspect, embodiments of the invention provide a method of operating a UPS system having a first UPS and a second UPS, the method comprising powering on the first UPS, receiving power from a first input power source coupled to an input of the first UPS, providing power to a load coupled to an output of the first UPS, adjusting the power provided to the load by the first UPS in response to power characteristics of the first UPS and power characteristics of the second UPS. | 08-28-2014 |
Patent application number | Description | Published |
20100318847 | TECHNIQUES FOR BUILDING AN AGGREGATE MODEL FOR PERFORMING DIAGNOSTICS - Techniques for building a model for performing diagnostics. In one embodiment, a set of models is determined based upon a topological relationship created upon receiving an alert or a request for which diagnostics are to be performed. An aggregate model is then generated based upon the set of models and the topological relationship. The aggregate model is then used for performing the diagnostics. | 12-16-2010 |
20100318853 | TECHNIQUES FOR GATHERING EVIDENCE FOR PERFORMING DIAGNOSTICS - Techniques for performing diagnostics for a monitored system. In one embodiment, an aggregate model built using a set of models is used to determine a set of probes or tests to be executed for obtaining information related to the monitored system. The obtained evidence information is then applied to the aggregate model to perform diagnostics for one or more conditions detected in the monitored system. | 12-16-2010 |
20100318855 | TECHNIQUES FOR DETERMINING MODELS FOR PERFORMING DIAGNOSTICS - Techniques for performing diagnostics are described. In one embodiment, in response to an alert or a request to perform diagnostics, a topological relationship is generated comprising a set of applications and a set of systems determined based upon information in the alert or request. The topological relationship encapsulates relationships between the set of applications and the set of systems. In one embodiment, a set of causal network models to be used for performing the diagnostics is determined based upon the applications and systems in the topological relationship. | 12-16-2010 |
20110153540 | TECHNIQUES FOR GENERATING DIAGNOSTIC RESULTS - Techniques for performing diagnostics for a monitored system. In one set of embodiments, an aggregate model can be built from a set of models corresponding to entities (e.g., applications and systems) in the monitored system, and data from the monitored system can be applied to the aggregate model. Diagnostic result information can then be generated based on the application of the data to the aggregate model. In certain embodiments, generating the diagnostic result information can include determining a state of an application or system in the monitored system and determining an impact of the state to a user. | 06-23-2011 |