NEXTEK POWER SYSTEMS, INC. Patent applications |
Patent application number | Title | Published |
20140320254 | Assembly Having Transformer and Inductor Properties and Method of Making the Assembly - An assembly having transformer and inductor characteristics includes a primary transformer winding coil and a secondary transformer winding coil, each wound around a core axis. The primary coil has outer peripheral primary coil portions spaced radially of the core axis outwardly away from central primary coil portions of the primary coil. The secondary coil has outer peripheral secondary coil portions spaced radially of the core axis outwardly away from central secondary coil portions of the secondary coil. The central primary and secondary coil portions are electromagnetically coupled and stacked in a close confronting adjacent relationship to form a transformer. The outer peripheral primary and secondary coil portions diverge radially and outwardly away from the core axis to form an inductance. The diverging outer peripheral primary and secondary coil portions bound an angle whose angular spread determines a magnitude of the inductance. | 10-30-2014 |
20120091802 | Arrangement For And Method Of Dynamically Managing Electrical Power Between An Electrical Power Source And An Electrical Load - Electrical power is dynamically managed among one or more power sources and one or more loads. A plurality of monitor nodes is connected to an input terminal connected to each source, and to an output terminal connected to each load. A plurality of electrical power storage cells is connected among the input and output terminals, each cell being capable of storing power from at least one of the sources and being capable of discharging stored power to at least one of the loads. A plurality of controllable switches is connected to the cells. A programmed controller dynamically monitors operating conditions at the monitor nodes during operation of each source and each load, and selectively dynamically controls the switches to interconnect the cells in different circuit topologies in response to the monitored operating conditions. | 04-19-2012 |
20110273018 | HIGH-EFFICIENCY DC BALLAST ARRANGEMENT WITH AUTOMATIC POLARITY PROTECTION AND EMERGENCY BACK-UP FOR LIGHTING FIXTURE IN A SUSPENDED DC-POWERED CEILING SYSTEM - A high-efficiency ballast arrangement for a lighting fixture has an automatic polarity protection circuit for supplying an output DC voltage of constant polarity no matter in which orientation the fixture is mounted in a DC-powered suspended ceiling system having a DC power supply. A main DC ballast circuit includes a main DC ballast powered by the output DC voltage from the protection circuit to enable a lamp in the fixture to be illuminated during normal operation. An emergency back-up DC ballast circuit includes a battery charged to a charged DC voltage by the output DC voltage during the normal operation, and an emergency DC ballast powered by the charged DC voltage from the battery to enable the lamp in the fixture to be illuminated during emergency operation upon failure of the DC power supply. | 11-10-2011 |
20110140524 | MULTIPLE BI-DIRECTIONAL INPUT/OUTPUT POWER CONTROL SYSTEM - A multiple bi-directional input/output power control system includes a network of functional blocks housed in a single enclosure, providing DC power to one or more DC loads, and providing control and internal pathways, sharing one or more AC and/or DC power inputs. The system feeds back AC power from the DC power source into an AC input connection, and the fed-back AC power is shared by other AC loads. The system operates at least one alternative source of DC in a dynamic manner, allowing maximization of power generating capability at respective specific operating conditions of the moment. Power isolation may be handled by an AC isolation block right at a power input. Therefore all other blocks within a multi-function power control unit (MFPCU) are isolated from AC ground. | 06-16-2011 |
20090179499 | MULTIPLE BI-DIRECTIONAL INPUT/OUTPUT POWER CONTROL SYSTEM - A multiple bi-directional input/output power control system includes a network of functional blocks housed in a single enclosure, providing DC power to one or more DC loads, and providing control and internal pathways, sharing one or more AC and/or DC power inputs. The system feeds back AC power from the DC power source into an AC input connection, and the fed-back AC power is shared by other AC loads. The system operates at least one alternative source of DC in a dynamic manner, allowing maximization of power generating capability at respective specific operating conditions of the moment. Power isolation may be handled by an AC isolation block right at a power input. Therefore all other blocks within a multi-function power control unit (MFPCU) are isolated from AC ground. | 07-16-2009 |