Patents Assigned to One More Time LLC
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Patent number: 10700598Abstract: A boost chopper circuit is described that an alternating current (AC) power source; at least one inductor connected to said AC power source; a rectifier connected to said inductor and AC power source; at least one switch shorting our said rectifier; a series circuit connected in parallel with said switch of at least one diode and a capacitor; and a load connected in parallel with said capacitor. A control technique is employed that includes turning on and off the switch in order to keep the average current per pulse cycle proportional to the AC input voltage during the same pulse cycle.Type: GrantFiled: February 12, 2019Date of Patent: June 30, 2020Assignee: ONE MORE TIME LLCInventor: Donald F. Partridge
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Patent number: 10230299Abstract: A boost chopper circuit is described that an alternating current (AC) power source; at least one inductor connected to said AC power source; a rectifier connected to said inductor and AC power source; at least one switch shorting our said rectifier; a series circuit connected in parallel with said switch of at least one diode and a capacitor; and a load connected in parallel with said capacitor. A control technique is employed that includes turning on and off the switch in order to keep the average current per pulse cycle proportional to the AC input voltage during the same pulse cycle.Type: GrantFiled: May 5, 2017Date of Patent: March 12, 2019Assignee: One More Time LLCInventor: Donald F. Partridge
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Patent number: 9647533Abstract: A boost chopper circuit is described that an alternating current (AC) power source; at least one inductor connected to said AC power source; a rectifier connected to said inductor and AC power source; at least one switch shorting our said rectifier; a series circuit connected in parallel with said switch of at least one diode and a capacitor; and a load connected in parallel with said capacitor. A control technique is employed that includes turning on and off the switch in order to keep the average current per pulse cycle proportional to the AC input voltage during the same pulse cycle.Type: GrantFiled: November 7, 2014Date of Patent: May 9, 2017Assignee: One More Time LLCInventor: Donald F. Partridge
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Patent number: 7733067Abstract: A high frequency resonant apparatus is described that includes a closed loop resonant series circuit including a capacitor, an inductor, a load, and a switching device with an anti-parallel diode. An energy source is coupled to the closed loop series circuit. The high frequency resonant apparatus also includes a controller for turning on the switching device for a time longer than one cycle of the closed loop resonant series circuit.Type: GrantFiled: December 10, 2008Date of Patent: June 8, 2010Assignee: One More Time LLCInventor: Donald Partridge
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Patent number: 7646180Abstract: Embodiments of the invention provide methods and apparatuses for concurrently eliminating or substantially reducing two or more switching losses in an inverter switching circuit. Embodiments of the invention concurrently reduce multiple types of switching losses under hard switching mode and soft switching mode for active switching devices and diodes. In one embodiment of the invention, the voltage across a switching device is substantially reduced during switch turn-off and/or turn-on time, and also maintained at a substantially reduced level throughout some or all of the tail current loss time of the switching device. The voltage reduction mechanism is implemented as a transformer circuit electrically serially implemented between the voltage source and the switching device. Other methods and apparatuses are also described.Type: GrantFiled: July 17, 2008Date of Patent: January 12, 2010Assignee: One More Time LLCInventor: Donald F. Partridge
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Publication number: 20080297123Abstract: Embodiments of the invention provide methods and apparatuses for concurrently eliminating or substantially reducing two or more switching losses in an inverter switching circuit. Embodiments of the invention concurrently reduce multiple types of switching losses under hard switching mode and soft switching mode for active switching devices and diodes. In one embodiment of the invention, the voltage across a switching device is substantially reduced during switch turn-off and/or turn-on time, and also maintained at a substantially reduced level throughout some or all of the tail current loss time of the switching device. The voltage reduction mechanism is implemented as a transformer circuit electrically serially implemented between the voltage source and the switching device. Other methods and apparatuses are also described.Type: ApplicationFiled: July 17, 2008Publication date: December 4, 2008Applicant: One More Time LLCInventor: Donald F. Partridge
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Patent number: 7417409Abstract: Embodiments of the invention provide methods and apparatuses for concurrently eliminating or substantially reducing two or more switching losses in an inverter switching circuit. Embodiments of the invention concurrently reduce multiple types of switching losses under hard switching mode and soft switching mode for active switching devices and diodes. In one embodiment of the invention, the voltage across a switching device is substantially reduced during switch turn-off and/or turn-on time, and also maintained at a substantially reduced level throughout some or all of the tail current loss time of the switching device. Other methods and apparatuses are also described.Type: GrantFiled: March 6, 2006Date of Patent: August 26, 2008Assignee: One More Time LLCInventor: Donald F. Partridge