Patents by Inventor Damir Klikic

Damir Klikic 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).

  • Patent number: 12237760
    Abstract: According to one aspect, embodiments of the invention provide an electrical-converter system comprising a printed circuit board including at least a first layer and a second layer, a switching node disposed on the second layer, a first transistor, a second transistor, a third transistor, and a fourth transistor disposed on the first layer, a first conduction path from a source of the first transistor, through the switching node, to a drain of the fourth transistor, the first conduction path having a first length, and a second conduction path from the source of the first transistor, through the switching node, to a drain of the second transistor, the second conduction path having a second length, wherein the first length of the first conduction path is greater than the second length of the second conduction path.
    Type: Grant
    Filed: March 22, 2024
    Date of Patent: February 25, 2025
    Assignee: SCHNEIDER ELECTRIC IT CORPORATION
    Inventors: Indra Prakash, Roger Franchino, Damir Klikic
  • Publication number: 20250038654
    Abstract: Examples of the disclosure include a power-conditioning system comprising a load output configured to be coupled to a load, a power-factor-correction circuit (PFC) comprising a first switching leg and a second switching leg, wherein the first switching leg and the second switching leg are configured to be controlled based on a first modulation index, an inverter comprising the second switching leg and a third switching leg, wherein the third switching leg is configured to be controlled based on a second modulation index, and a capacitor coupled to an inverter output of the inverter and being coupled in series with the load output.
    Type: Application
    Filed: July 1, 2024
    Publication date: January 30, 2025
    Inventors: Kapil Sunil Bhise, Pin-Chieh Chan, Kuo-Liang Lee, Ming-Chieh Chang, Pradeep Tolakanahalli Nagabhushanrao, Damir Klikic, Hsuang-Chang Chiang
  • Patent number: 12105115
    Abstract: A system for monitoring a fan used to cool equipment includes memory storing controller-executable instructions, and a controller configured to execute the instructions, which cause the controller to operate a fan, perform a deceleration test on the fan to obtain deceleration test data, calculate a variance of the deceleration test data, make a determination that the fan is susceptible to imminent failure based on the variance, and generate a signal for the equipment to enter a low-heat producing mode based on the determination.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: October 1, 2024
    Assignee: SCHNEIDER ELECTRIC IT CORPORATION
    Inventors: Stephen Paul Linder, Damir Klikic
  • Publication number: 20240305184
    Abstract: According to one aspect, embodiments of the invention provide an electrical-converter system comprising a printed circuit board including at least a first layer and a second layer, a switching node disposed on the second layer, a first transistor, a second transistor, a third transistor, and a fourth transistor disposed on the first layer, a first conduction path from a source of the first transistor, through the switching node, to a drain of the fourth transistor, the first conduction path having a first length, and a second conduction path from the source of the first transistor, through the switching node, to a drain of the second transistor, the second conduction path having a second length, wherein the first length of the first conduction path is greater than the second length of the second conduction path.
    Type: Application
    Filed: March 22, 2024
    Publication date: September 12, 2024
    Inventors: Indra Prakash, Roger Franchino, Damir Klikic
  • Patent number: 12068635
    Abstract: A power system includes a base module including a system management controller (SMC) and a power distribution unit (PDU), an uninterruptible power supply (UPS) module including a UPS, and a battery module including a battery. The base module includes a first edge, and the battery module is detachable from UPS module in a direction perpendicular to the first edge.
    Type: Grant
    Filed: May 13, 2022
    Date of Patent: August 20, 2024
    Assignee: SCHNEIDER ELECTRIC IT CORPORATION
    Inventors: Marlon Galsim, Damir Klikic
  • Patent number: 11990850
    Abstract: According to at least one aspect of the disclosure, an inverter is provided comprising an input configured to receive input DC power from a DC source, an output configured to provide output AC power to a load, a plurality of DC rails coupled to the input and configured to receive the input DC power from the DC source, a plurality of switches coupled between the plurality of DC rails and configured to convert the input DC power into the output AC power, each switch of the plurality of switches having a parasitic capacitance, and at least one ZVS network coupled across at least two switches of the plurality of switches, the ZVS network including at least two inductors configured to resonate with the parasitic capacitance of at least one switch of the plurality of switches to provide soft switching of at least one switch of the plurality of switches.
    Type: Grant
    Filed: June 21, 2023
    Date of Patent: May 21, 2024
    Assignee: SCHNEIDER ELECTRIC IT CORPORATION
    Inventors: Indra Prakash, Damir Klikic, Chandrasekaran Jayaraman
  • Patent number: 11973414
    Abstract: According to one aspect, embodiments of the invention provide an electrical-converter system comprising a printed circuit board including at least a first layer and a second layer, a switching node disposed on the second layer, a first transistor, a second transistor, a third transistor, and a fourth transistor disposed on the first layer, a first conduction path from a source of the first transistor, through the switching node, to a drain of the fourth transistor, the first conduction path having a first length, and a second conduction path from the source of the first transistor, through the switching node, to a drain of the second transistor, the second conduction path having a second length, wherein the first length of the first conduction path is greater than the second length of the second conduction path.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: April 30, 2024
    Assignee: SCHNEIDER ELECTRIC IT CORPORATION
    Inventors: Indra Prakash, Roger Franchino, Damir Klikic
  • Publication number: 20230369887
    Abstract: A power system includes a base module including a system management controller (SMC) and a power distribution unit (PDU), an uninterruptible power supply (UPS) module including a UPS, and a battery module including a battery. The base module includes a first edge, and the battery module is detachable from UPS module in a direction perpendicular to the first edge.
    Type: Application
    Filed: May 13, 2022
    Publication date: November 16, 2023
    Inventors: Marlon Galsim, Damir Klikic
  • Publication number: 20230353064
    Abstract: According to at least one aspect of the disclosure, an inverter is provided comprising an input configured to receive input DC power from a DC source, an output configured to provide output AC power to a load, a plurality of DC rails coupled to the input and configured to receive the input DC power from the DC source, a plurality of switches coupled between the plurality of DC rails and configured to convert the input DC power into the output AC power, each switch of the plurality of switches having a parasitic capacitance, and at least one ZVS network coupled across at least two switches of the plurality of switches, the ZVS network including at least two inductors configured to resonate with the parasitic capacitance of at least one switch of the plurality of switches to provide soft switching of at least one switch of the plurality of switches.
    Type: Application
    Filed: June 21, 2023
    Publication date: November 2, 2023
    Inventors: Indra Prakash, Damir Klikic, Chandrasekaran Jayaraman
  • Patent number: 11728747
    Abstract: According to at least one aspect of the disclosure, an inverter is provided comprising an input configured to receive input DC power from a DC source, an output configured to provide output AC power to a load, a plurality of DC rails coupled to the input and configured to receive the input DC power from the DC source, a plurality of switches coupled between the plurality of DC rails and configured to convert the input DC power into the output AC power, each switch of the plurality of switches having a parasitic capacitance, and at least one ZVS network coupled across at least two switches of the plurality of switches, the ZVS network including at least two inductors configured to resonate with the parasitic capacitance of at least one switch of the plurality of switches to provide soft switching of at least one switch of the plurality of switches.
    Type: Grant
    Filed: July 27, 2021
    Date of Patent: August 15, 2023
    Assignee: SCHNEIDER ELECTRIC IT CORPORATION
    Inventors: Indra Prakash, Damir Klikic, Chandrasekaran Jayaraman
  • Patent number: 11258444
    Abstract: According to one aspect, embodiments herein provide a power switching circuit, comprising a first terminal, a second terminal, a third terminal, and a plurality of switching devices, each switching device having a first transistor having a first gate, a first source, and a first drain, a second transistor having a second gate, a second source, a second drain coupled to the first source, and a bipolar body diode coupled between the second drain and the second source, and a unipolar diode configured to prevent a transition voltage applied across the first gate and the first source from exceeding a degradation threshold of the first transistor during a transition period, wherein a first switching device of the plurality of switching devices is coupled between the first and third terminals and the and a second switching device of the plurality of switching devices is coupled between the second and third terminals.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: February 22, 2022
    Assignee: SCHNEIDER ELECTRIC IT CORPORATION
    Inventors: Indra Prakash, Damir Klikic
  • Publication number: 20220038029
    Abstract: According to at least one aspect of the disclosure, an inverter is provided comprising an input configured to receive input DC power from a DC source, an output configured to provide output AC power to a load, a plurality of DC rails coupled to the input and configured to receive the input DC power from the DC source, a plurality of switches coupled between the plurality of DC rails and configured to convert the input DC power into the output AC power, each switch of the plurality of switches having a parasitic capacitance, and at least one ZVS network coupled across at least two switches of the plurality of switches, the ZVS network including at least two inductors configured to resonate with the parasitic capacitance of at least one switch of the plurality of switches to provide soft switching of at least one switch of the plurality of switches.
    Type: Application
    Filed: July 27, 2021
    Publication date: February 3, 2022
    Inventors: Indra Prakash, Damir Klikic, Chandrasekaran Jayaraman
  • Publication number: 20210242767
    Abstract: According to one aspect, embodiments of the invention provide an electrical-converter system comprising a printed circuit board including at least a first layer and a second layer, a switching node disposed on the second layer, a first transistor, a second transistor, a third transistor, and a fourth transistor disposed on the first layer, a first conduction path from a source of the first transistor, through the switching node, to a drain of the fourth transistor, the first conduction path having a first length, and a second conduction path from the source of the first transistor, through the switching node, to a drain of the second transistor, the second conduction path having a second length, wherein the first length of the first conduction path is greater than the second length of the second conduction path.
    Type: Application
    Filed: January 27, 2021
    Publication date: August 5, 2021
    Inventors: Indra Prakash, Roger Franchino, Damir Klikic
  • Patent number: 11056909
    Abstract: According to one aspect, a DC power supply is provided. The power supply includes a first input configured to be coupled to an AC power source, a second input configured to be coupled to a battery, an output, a transformer, and a controller coupled to the transformer. The transformer includes a first winding configured to be coupled to the first input, a second winding configured to be coupled to the second input, and a third winding configured to be coupled to the output. The controller controls, in a first mode, the first winding to generate, based on power received from the AC power source, a first voltage across the second winding to charge the battery, and a second voltage across the third winding, and control, in a second mode, the second winding to generate, based on power received from the battery, a third voltage across the third winding.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: July 6, 2021
    Assignee: SCHNEIDER ELECTRIC IT CORPORATION
    Inventors: Rajesh Ghosh, Damir Klikic, Mahendrakumar Haribhau Lipare, Mudiyula Srikanth
  • Publication number: 20210072272
    Abstract: A system for monitoring a fan used to cool equipment includes memory storing controller-executable instructions, and a controller configured to execute the instructions, which cause the controller to operate a fan, perform a deceleration test on the fan to obtain deceleration test data, calculate a variance of the deceleration test data, make a determination that the fan is susceptible to imminent failure based on the variance, and generate a signal for the equipment to enter a low-heat producing mode based on the determination.
    Type: Application
    Filed: September 9, 2020
    Publication date: March 11, 2021
    Inventors: Stephen Paul Linder, Damir Klikic
  • Publication number: 20200366288
    Abstract: According to one aspect, embodiments herein provide a power switching circuit, comprising a first terminal, a second terminal, a third terminal, and a plurality of switching devices, each switching device having a first transistor having a first gate, a first source, and a first drain, a second transistor having a second gate, a second source, a second drain coupled to the first source, and a bipolar body diode coupled between the second drain and the second source, and a unipolar diode configured to prevent a transition voltage applied across the first gate and the first source from exceeding a degradation threshold of the first transistor during a transition period, wherein a first switching device of the plurality of switching devices is coupled between the first and third terminals and the and a second switching device of the plurality of switching devices is coupled between the second and third terminals.
    Type: Application
    Filed: April 2, 2020
    Publication date: November 19, 2020
    Inventors: Indra Prakash, Damir Klikic
  • Patent number: 10778032
    Abstract: An uninterruptible power system described herein includes a first input and a second input and an AC output. The uninterruptible power system also includes power circuitry coupled to the first input, the second input, and the AC output, the power circuitry including an inverter having a first pair of switching elements including a first switching element and a second switching element and a second pair of switching elements including a third switching element and a fourth switching element, wherein the first switching element, the second switching element, the third switching element and the fourth switching element have an identical voltage rating; and a controller coupled to the second pair of switching elements and configured to control the third switching element and the fourth switching element to prevent occurrence of an overvoltage condition.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: September 15, 2020
    Assignee: SCHNEIDER ELECTRIC IT CORPORATION
    Inventors: Rajesh Ghosh, Henning Roar Nielsen, Damir Klikic
  • Patent number: 10637369
    Abstract: According to one aspect, embodiments of the invention provide an inverter system including an input having a positive DC node and a negative DC node coupled to a DC power source to receive input DC power, an output coupled to a load to provide output AC power, a first inverter leg including a first and a second switching device, a second inverter leg including a third and a fourth switching device, the first inverter leg and the second inverter leg being adapted to convert the input DC power to the output AC power, a current sensor coupled to one of the negative and the positive DC node, and a controller assembly adapted to measure a current through the current sensor and determine an inductor current through an inductor coupled to the output, an input current, and an output current based at least on the current through the current sensor.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: April 28, 2020
    Assignee: SCHNEIDER ELECTRIC IT CORPORATION
    Inventors: Rajesh Ghosh, Mahendrakumar H. Lipare, Damir Klikic, Miao-Xin Wang, Mudiyula Srikanth
  • Patent number: 10574084
    Abstract: According to at least one aspect, embodiments herein provide a UPS comprising an input to receive input power, an interface to receive DC battery power, a bi-directional converter coupled to the interface and configured to provide DC charging power, derived from the input power, to the battery in a first mode of operation and to convert the DC battery power into backup DC power in a second mode of operation, an output to provide output power to a load derived from at least one of the input power and the backup DC power, and a controller coupled to the bi-directional converter and configured to operate the bi-directional converter at a first frequency in the first mode of operation to generate the DC charging power and to operate the bi-directional converter at a second frequency in the second mode of operation to generate the backup DC power.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: February 25, 2020
    Assignee: SCHNEIDER ELECTRIC IT CORPORATION
    Inventors: Rajesh Ghosh, Mahendrakumar H. Lipare, Damir Klikic, Mudiyula Srikanth
  • Publication number: 20200006974
    Abstract: According to one aspect, a DC power supply is provided. The power supply includes a first input configured to be coupled to an AC power source, a second input configured to be coupled to a battery, an output, a transformer, and a controller coupled to the transformer. The transformer includes a first winding configured to be coupled to the first input, a second winding configured to be coupled to the second input, and a third winding configured to be coupled to the output. The controller controls, in a first mode, the first winding to generate, based on power received from the AC power source, a first voltage across the second winding to charge the battery, and a second voltage across the third winding, and control, in a second mode, the second winding to generate, based on power received from the battery, a third voltage across the third winding.
    Type: Application
    Filed: July 2, 2018
    Publication date: January 2, 2020
    Inventors: Rajesh Ghosh, Damir Klikic, Mahendrakumar Haribhau Lipare, Mudiyula Srikanth