Patents by Inventor Behzad MAHDAVIKHAH
Behzad MAHDAVIKHAH has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11979091Abstract: A forward converter includes an input voltage source divided into multiple divided input voltage sources, each of which provides a portion of a total input voltage of the input voltage source. The forward converter includes an output circuit with an output capacitor, a transformer having multiple primary windings, a secondary winding, and a relaxation winding. Each primary winding is connected in series with a corresponding primary side switching device. A combination of the primary winding and the corresponding primary side switching device is in parallel with a corresponding divided voltage source. The secondary winding outputs a voltage via the output circuit. The relaxation winding is connected across the divided input voltage sources or the output capacitor. A controller circuit controls the primary side switching devices to control power flow from the input voltage source to the output capacitor based on an indication of a voltage across the output capacitor.Type: GrantFiled: April 4, 2022Date of Patent: May 7, 2024Assignee: Appulse Power Inc.Inventors: Seyed-Behzad Mahdavikhah-Mehrabad, Nenad Vukadinovic
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Publication number: 20220231610Abstract: A forward converter includes an input voltage source divided into multiple divided input voltage sources, each of which provides a portion of a total input voltage of the input voltage source. The forward converter includes an output circuit with an output capacitor, a transformer having multiple primary windings, a secondary winding, and a relaxation winding. Each primary winding is connected in series with a corresponding primary side switching device. A combination of the primary winding and the corresponding primary side switching device is in parallel with a corresponding divided voltage source. The secondary winding outputs a voltage via the output circuit. The relaxation winding is connected across the divided input voltage sources or the output capacitor. A controller circuit controls the primary side switching devices to control power flow from the input voltage source to the output capacitor based on an indication of a voltage across the output capacitor.Type: ApplicationFiled: April 4, 2022Publication date: July 21, 2022Applicant: Appulse Power Inc.Inventors: Seyed-Behzad Mahdavikhah-Mehrabad, Nenad Vukadinovic
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Patent number: 11329567Abstract: A forward converter includes an input voltage source divided into multiple divided input voltage sources, each of which provides a portion of a total input voltage of the input voltage source. The forward converter includes an output circuit with an output capacitor, a transformer having multiple primary windings, a secondary winding, and a relaxation winding. Each primary winding is connected in series with a corresponding primary side switching device. A combination of the primary winding and the corresponding primary side switching device is in parallel with a corresponding divided voltage source. The secondary winding outputs a voltage via the output circuit. The relaxation winding is connected across the divided input voltage sources or the output capacitor. A controller circuit controls the primary side switching devices to control power flow from the input voltage source to the output capacitor based on an indication of a voltage across the output capacitor.Type: GrantFiled: April 15, 2020Date of Patent: May 10, 2022Assignee: Appulse Power Inc.Inventors: Seyed-Behzad Mahdavikhah-Mehrabad, Nenad Vukadinovic
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Patent number: 11139739Abstract: A switch-mode power supply controller controls a circuit that includes a flyback-based, switch-mode power supply in the context of an input voltage source, a USB Type-C PD controller and an output load. The switch-mode power supply controller may be configured to estimate input voltage based on a measured magnetizing inductance discharge time. Furthermore, the switch-mode power supply controller may be configured to estimate output voltage based on the measured magnetizing inductance discharge time and the estimated input voltage. Still further, the estimated voltages may be used by the switch-mode power supply controller to limit certain currents and optimize power efficiency. Even further, the estimated and measured value may be employed by the switch-mode power supply controller to estimate and indicate brownout conditions.Type: GrantFiled: October 7, 2019Date of Patent: October 5, 2021Assignee: Appulse Power Inc.Inventors: Aleksandar Radic, Seyed-Behzad Mahdavikhah-Mehrabad
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Patent number: 11106258Abstract: A power adapter for supplying electrical power to a device includes a processor, an interface for power transfer with the device, a multi-winding feedback converter to receive an AC power input and to convert the AC power input to a DC power output over the interface for the device, and a power conversion control circuit. A voltage level of the DC power output is set based on a reference voltage produced by the processor. The power conversion control circuit receives the reference voltage and a control signal based on the voltage level of the DC power output to generate switch control signals to control switches of the multi-winding feedback converter to control the voltage level of the DC power output. The processor recognizes a load associated with the device and sets, using the reference voltage, the DC power output based on the recognized load.Type: GrantFiled: January 24, 2020Date of Patent: August 31, 2021Assignee: Appulse Power Inc.Inventors: Mete Erturk, Karim Arabi, Seyed-Behzad Mahdavikhah-Mehrabad, Aleksandar Radic, Sheikh Mohammad Ahsanuzzaman
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Patent number: 10903749Abstract: The flyback converter generally has a capacitive divider operatively connectable to a voltage source for receiving an input voltage, the capacitive divider having a plurality of capacitive devices connected in series from one another; a transformer having a plurality of primary windings inductively coupled to at least one secondary winding, each one of the primary windings of the transformer being connected in parallel to a corresponding one of the capacitive devices of the capacitive divider via a switching device, each of the at least one secondary winding being connected to a forwardly biased and capacitive circuit connectable to an output load; and a controller connected to each one of the switching devices for operating the flyback converter to power the output load with the voltage source.Type: GrantFiled: August 9, 2019Date of Patent: January 26, 2021Assignee: Appulse Power Inc.Inventors: Sheikh Mohammad Ahsanuzzaman, Seyed-Behzad Mahdavikhah-Mehrabad, Aleksandar Radic, Aleksandar Prodic
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Patent number: 10811979Abstract: The combined voltage regulator and snubber circuit generally has a voltage regulator device in parallel with the energy storage element of the snubber circuit operatively connectable in series with a leakage inductance current path; the leakage inductance being part of a magnetic component utilized in a switch-mode power supply having an input voltage source, controllable semiconductor switches, freewheeling semiconductor switches, feedback controller, reactive energy storage components and a load; the voltage regulator generally providing constant or variable voltage to the gate driver of the controllable semiconductor and/or feedback controller; the snubber circuit generally recycling leakage inductance energy to the input capacitor of a neighboring cell in a multi-cell stacked converter.Type: GrantFiled: October 21, 2019Date of Patent: October 20, 2020Assignee: Appulse Power Inc.Inventors: Aleksandar Radic, Seyed-Behzad Mahdavikhah-Mehrabad
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Publication number: 20200244175Abstract: A forward converter includes an input voltage source divided into multiple divided input voltage sources, each of which provides a portion of a total input voltage of the input voltage source. The forward converter includes an output circuit with an output capacitor, a transformer having multiple primary windings, a secondary winding, and a relaxation winding. Each primary winding is connected in series with a corresponding primary side switching device. A combination of the primary winding and the corresponding primary side switching device is in parallel with a corresponding divided voltage source. The secondary winding outputs a voltage via the output circuit. The relaxation winding is connected across the divided input voltage sources or the output capacitor. A controller circuit controls the primary side switching devices to control power flow from the input voltage source to the output capacitor based on an indication of a voltage across the output capacitor.Type: ApplicationFiled: April 15, 2020Publication date: July 30, 2020Applicant: Silanna Asia Pte LtdInventors: Seyed-Behzad Mahdavikhah-Mehrabad, Nenad Vukadinovic
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Publication number: 20200159300Abstract: A power adapter for supplying electrical power to a device includes a processor, an interface for power transfer with the device, a multi-winding feedback converter to receive an AC power input and to convert the AC power input to a DC power output over the interface for the device, and a power conversion control circuit. A voltage level of the DC power output is set based on a reference voltage produced by the processor. The power conversion control circuit receives the reference voltage and a control signal based on the voltage level of the DC power output to generate switch control signals to control switches of the multi-winding feedback converter to control the voltage level of the DC power output. The processor recognizes a load associated with the device and sets, using the reference voltage, the DC power output based on the recognized load.Type: ApplicationFiled: January 24, 2020Publication date: May 21, 2020Applicant: Silanna Asia Pte LtdInventors: Mete Erturk, Karim Arabi, Seyed-Behzad Mahdavikhah-Mehrabad, Aleksandar Radic, Sheikh Mohammad Ahsanuzzaman
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Publication number: 20200119650Abstract: The combined voltage regulator and snubber circuit generally has a voltage regulator device in parallel with the energy storage element of the snubber circuit operatively connectable in series with a leakage inductance current path; the leakage inductance being part of a magnetic component utilized in a switch-mode power supply having an input voltage source, controllable semiconductor switches, freewheeling semiconductor switches, feedback controller, reactive energy storage components and a load; the voltage regulator generally providing constant or variable voltage to the gate driver of the controllable semiconductor and/or feedback controller; the snubber circuit generally recycling leakage inductance energy to the input capacitor of a neighboring cell in a multi-cell stacked converter.Type: ApplicationFiled: October 21, 2019Publication date: April 16, 2020Applicant: Silanna Asia Pte LtdInventors: Aleksandar Radic, Seyed-Behzad Mahdavikhah-Mehrabad
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Publication number: 20200052600Abstract: The flyback converter generally has a capacitive divider operatively connectable to a voltage source for receiving an input voltage, the capacitive divider having a plurality of capacitive devices connected in series from one another; a transformer having a plurality of primary windings inductively coupled to at least one secondary winding, each one of the primary windings of the transformer being connected in parallel to a corresponding one of the capacitive devices of the capacitive divider via a switching device, each of the at least one secondary winding being connected to a forwardly biased and capacitive circuit connectable to an output load; and a controller connected to each one of the switching devices for operating the flyback converter to power the output load with the voltage source.Type: ApplicationFiled: August 9, 2019Publication date: February 13, 2020Applicant: Silanna Asia Pte LtdInventors: Sheikh Mohammad Ahsanuzzaman, Seyed-Behzad Mahdavikhah-Mehrabad, Aleksandar Radic, Aleksandar Prodic
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Patent number: 10554132Abstract: A combined voltage regulator and snubber circuit generally has a voltage regulator device in parallel with the energy storage element of the snubber circuit operatively connectable in series with a leakage inductance current path; the leakage inductance being part of a magnetic component utilized in a switch-mode power supply having an input voltage source, controllable semiconductor switches, freewheeling semiconductor switches, feedback controller, reactive energy storage components and a load; the voltage regulator generally providing constant or variable voltage to the gate driver of the controllable semiconductor and/or feedback controller.Type: GrantFiled: June 25, 2018Date of Patent: February 4, 2020Assignee: Silanna Asia Pte LtdInventors: Aleksandar Radic, Seyed-Behzad Mahdavikhah-Mehrabad
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Publication number: 20200036292Abstract: A switch-mode power supply controller controls a circuit that includes a flyback-based, switch-mode power supply in the context of an input voltage source, a USB Type-C PD controller and an output load. The switch-mode power supply controller may be configured to estimate input voltage based on a measured magnetizing inductance discharge time. Furthermore, the switch-mode power supply controller may be configured to estimate output voltage based on the measured magnetizing inductance discharge time and the estimated input voltage. Still further, the estimated voltages may be used by the switch-mode power supply controller to limit certain currents and optimize power efficiency. Even further, the estimated and measured value may be employed by the switch-mode power supply controller to estimate and indicate brownout conditions.Type: ApplicationFiled: October 7, 2019Publication date: January 30, 2020Applicant: Silanna Asia Pte LtdInventors: Aleksandar Radic, Seyed-Behzad Mahdavikhah-Mehrabad
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Patent number: 10545549Abstract: A power adapter for supplying electrical power to a mobile device. The power adapter may have a processor and an interface for data communication and power transmission with the mobile device, memory internal to a casing of the power adapter, and an AC/DC power conversion circuit electrically coupled to the processor. The AC/DC power conversion circuit is configured to receive an AC power input and convert the AC power input to a DC power output over the interface for the mobile device. The processor is configured to: recognize a load associated with the mobile device connected to the DC power output; set the DC power output based on the load; receive backup data from the mobile device over the interface; and store the backup data from the mobile device within the memory.Type: GrantFiled: May 1, 2017Date of Patent: January 28, 2020Assignee: Silanna Asia Pte LtdInventors: Mete Erturk, Karim Arabi, Seyed-Behzad Mahdavikhah-Mehrabad, Aleksandar Radic, Sheikh Mohammad Ahsanuzzaman
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Patent number: 10454379Abstract: The combined voltage regulator and snubber circuit generally has a voltage regulator device in parallel with the energy storage element of the snubber circuit operatively connectable in series with a leakage inductance current path; the leakage inductance being part of a magnetic component utilized in a switch-mode power supply having an input voltage source, controllable semiconductor switches, freewheeling semiconductor switches, feedback controller, reactive energy storage components and a load; the voltage regulator generally providing constant or variable voltage to the gate driver of the controllable semiconductor and/or feedback controller; the snubber circuit generally recycling leakage inductance energy to the input capacitor of a neighboring cell in a multi-cell stacked converter.Type: GrantFiled: November 13, 2018Date of Patent: October 22, 2019Assignee: Silanna Asia Pte LtdInventors: Aleksandar Radic, Seyed-Behzad Mahdavikhah-Mehrabad
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Patent number: 10439499Abstract: A switch-mode power supply controller controls a circuit that includes a flyback-based, switch-mode power supply in the context of an input voltage source, a USB Type-C PD controller and an output load. The switch-mode power supply controller may be configured to estimate input voltage based on a measured magnetizing inductance discharge time. Furthermore, the switch-mode power supply controller may be configured to estimate output voltage based on the measured magnetizing inductance discharge time and the estimated input voltage. Still further, the estimated voltages may be used by the switch-mode power supply controller to limit certain currents and optimize power efficiency. Even further, the estimated and measured value may be employed by the switch-mode power supply controller to estimate and indicate brownout conditions.Type: GrantFiled: June 27, 2018Date of Patent: October 8, 2019Assignee: Silanna Asia Pte LtdInventors: Aleksandar Radic, Seyed-Behzad Mahdavikhah-Mehrabad
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Patent number: 10381936Abstract: The flyback converter generally has a capacitive divider operatively connectable to a voltage source for receiving an input voltage, the capacitive divider having a plurality of capacitive devices connected in series from one another; a transformer having a plurality of primary windings inductively coupled to at least one secondary winding, each one of the primary windings of the transformer being connected in parallel to a corresponding one of the capacitive devices of the capacitive divider via a switching device, each of the at least one secondary winding being connected to a forwardly biased and capacitive circuit connectable to an output load; and a controller connected to each one of the switching devices for operating the flyback converter to power the output load with the voltage source.Type: GrantFiled: November 30, 2015Date of Patent: August 13, 2019Assignee: Silanna Asia Pte LtdInventors: Sheikh Mohammad Ahsanuzzaman, Seyed-Behzad Mahdavikhah-Mehrabad, Aleksandar Radic, Aleksandar Prodic
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Publication number: 20190115838Abstract: The combined voltage regulator and snubber circuit generally has a voltage regulator device in parallel with the energy storage element of the snubber circuit operatively connectable in series with a leakage inductance current path; the leakage inductance being part of a magnetic component utilized in a switch-mode power supply having an input voltage source, controllable semiconductor switches, freewheeling semiconductor switches, feedback controller, reactive energy storage components and a load; the voltage regulator generally providing constant or variable voltage to the gate driver of the controllable semiconductor and/or feedback controller; the snubber circuit generally recycling leakage inductance energy to the input capacitor of a neighbouring cell in a multi-cell stacked converter.Type: ApplicationFiled: November 13, 2018Publication date: April 18, 2019Applicant: Silanna Asia Pte LtdInventors: Aleksandar Radic, Seyed-Behzad Mahdavikhah-Mehrabad
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Patent number: 10135344Abstract: The combined voltage regulator and snubber circuit generally has a voltage regulator device in parallel with the energy storage element of the snubber circuit operatively connectable in series with a leakage inductance current path; the leakage inductance being part of a magnetic component utilized in a switch-mode power supply having an input voltage source, controllable semiconductor switches, freewheeling semiconductor switches, feedback controller, reactive energy storage components and a load; the voltage regulator generally providing constant or variable voltage to the gate driver of the controllable semiconductor and/or feedback controller; the snubber circuit generally recycling leakage inductance energy to the input capacitor of a neighboring cell in a multi-cell stacked converter.Type: GrantFiled: July 13, 2016Date of Patent: November 20, 2018Assignee: Silanna Asia Pte LtdInventors: Aleksandar Radic, Seyed-Behzad Mahdavikhah-Mehrabad
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Publication number: 20180316270Abstract: A switch-mode power supply controller controls a circuit that includes a flyback-based, switch-mode power supply in the context of an input voltage source, a USB Type-C PD controller and an output load. The switch-mode power supply controller may be configured to estimate input voltage based on a measured magnetizing inductance discharge time. Furthermore, the switch-mode power supply controller may be configured to estimate output voltage based on the measured magnetizing inductance discharge time and the estimated input voltage. Still further, the estimated voltages may be used by the switch-mode power supply controller to limit certain currents and optimize power efficiency. Even further, the estimated and measured value may be employed by the switch-mode power supply controller to estimate and indicate brownout conditions.Type: ApplicationFiled: June 27, 2018Publication date: November 1, 2018Applicant: Appulse Power Inc.Inventors: Aleksandar Radic, Seyed-Behzad Mahdavikhah-Mehrabad