Patents by Inventor Mehmet K. Nalbant

Mehmet K. Nalbant 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: 10511222
    Abstract: A wireless power transmitter comprises a bridge inverter including a first switch and a second switch coupled together with a first switching node therebetween, and a first capacitor coupled to the first switching node. The transmitter further includes control logic configured to control the first switch and the second switch according to an operating frequency to generate an AC power signal from a DC power signal, and a resonant tank operably coupled to the first switching node of the bridge inverter, the resonant tank configured to receive the AC power signal and generate an electromagnetic field responsive thereto. A method for operating the wireless power transmitter and a method for making the wireless power transmitter are also disclosed.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: December 17, 2019
    Assignee: Integrated Device Technology, Inc.
    Inventor: Mehmet K. Nalbant
  • Publication number: 20190222115
    Abstract: A wireless power transmitter comprises a bridge inverter including a first switch and a second switch coupled together with a first switching node therebetween, and a first capacitor coupled to the first switching node. The transmitter further includes control logic configured to control the first switch and the second switch according to an operating frequency to generate an AC power signal from a DC power signal, and a resonant tank operably coupled to the first switching node of the bridge inverter, the resonant tank configured to receive the AC power signal and generate an electromagnetic field responsive thereto. A method for operating the wireless power transmitter and a method for making the wireless power transmitter are also disclosed.
    Type: Application
    Filed: January 10, 2019
    Publication date: July 18, 2019
    Inventor: Mehmet K. Nalbant
  • Patent number: 10312736
    Abstract: A wireless power transmission system is presented. In some embodiments, a transmission unit includes a first inductor with a center tap, a first end tap, and a second end tap; a pre-regulator coupled to provide current to the center tap; a switching circuit coupled to the first end tap and the second end tap, the switching circuit alternately coupling the first end tap and the second end tap to ground at a frequency; and a resonant circuit magnetically coupled to the first inductor, the resonant circuit wirelessly transmitting power. In some embodiments, the switching circuit can be formed of FETs. The current provided to the center tap can be controlled in response to current sensors.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: June 4, 2019
    Assignee: Integrated Device Technology, Inc.
    Inventor: Mehmet K. Nalbant
  • Patent number: 10284015
    Abstract: A wireless power transmission system is presented. In some embodiments, a transmission unit includes a first inductor with a center tap, a first end tap, and a second end tap; a pre-regulator coupled to provide current to the center tap; a switching circuit coupled to the first end tap and the second end tap, the switching circuit alternately coupling the first end tap and the second end tap to ground at a frequency; and a resonant circuit magnetically coupled to the first inductor, the resonant circuit wirelessly transmitting power. In some embodiments, the switching circuit can be formed of FETs. The current provided to the center tap can be controlled in response to current sensors.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: May 7, 2019
    Assignee: Integrated Device Technology, Inc.
    Inventor: Mehmet K. Nalbant
  • Patent number: 10211720
    Abstract: A wireless power transmitter comprises a bridge inverter including a first switch and a second switch coupled together with a first switching node therebetween, and a first capacitor coupled to the first switching node. The transmitter further includes control logic configured to control the first switch and the second switch according to an operating frequency to generate an AC power signal from a DC power signal, and a resonant tank operably coupled to the first switching node of the bridge inverter, the resonant tank configured to receive the AC power signal and generate an electromagnetic field responsive thereto. A method for operating the wireless power transmitter and a method for making the wireless power transmitter are also disclosed.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: February 19, 2019
    Assignee: Integrated Device Technology, Inc.
    Inventor: Mehmet K. Nalbant
  • Patent number: 10199865
    Abstract: In accordance with some embodiments, a transmitter for wireless transfer includes a rectifier that receives an AC voltage and provides a DC voltage; a capacitor that receives and smooths the DC voltage; a regulator that receives the DC voltage and outputs an input voltage; and a wireless transmitter that receives the input voltage and transmits wireless power.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: February 5, 2019
    Assignee: Integrated Device Technology, Inc.
    Inventor: Mehmet K. Nalbant
  • Publication number: 20180233942
    Abstract: A wireless power transmitting device transmits wireless power signals to a wireless power receiving device. The wireless power receiving device has a rectifier and a wireless power receiving coil that receives wireless power signals. The rectifier is coupled to an integrated circuit such as a battery charger integrated circuit. One or more capacitors are coupled between input terminals for the rectifier and the wireless power receiving coil. The rectifier has output terminals at which the rectifier provides direct-current output power corresponding to the wireless power signals received with the wireless power receiving coil. Protection circuitry is coupled to one or more nodes located between the wireless power receiving coil and the capacitors. Control circuitry turns on one or more transistors in the protection circuitry in response to measurements made with sensor circuitry coupled to the output terminals.
    Type: Application
    Filed: July 20, 2017
    Publication date: August 16, 2018
    Inventors: Weihong Qiu, Mehmet K. Nalbant, Zaki Moussaoui
  • Patent number: 9979237
    Abstract: A wireless power transmission system is presented. The wireless power circuit includes an adaptive transmitter coupled to a transmit coil; a receive coil in interaction with the transmit coil, the receive coil being thin and having an inner diameter large enough to accommodate sensors of a wearable device; and a receive circuit receiving power from the receive coil.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: May 22, 2018
    Assignee: Integrated Device Technology, Inc.
    Inventor: Mehmet K. Nalbant
  • Publication number: 20170163095
    Abstract: A wireless power transmission system is presented. In some embodiments, a transmission unit includes a first inductor with a center tap, a first end tap, and a second end tap; a pre-regulator coupled to provide current to the center tap; a switching circuit coupled to the first end tap and the second end tap, the switching circuit alternately coupling the first end tap and the second end tap to ground at a frequency; and a resonant circuit magnetically coupled to the first inductor, the resonant circuit wirelessly transmitting power. In some embodiments, the switching circuit can be formed of FETs. The current provided to the center tap can be controlled in response to current sensors.
    Type: Application
    Filed: July 11, 2016
    Publication date: June 8, 2017
    Inventor: Mehmet K. NALBANT
  • Publication number: 20170098960
    Abstract: A wireless power transmission system is presented. In some embodiments, a transmission unit includes a first inductor with a center tap, a first end tap, and a second end tap; a pre-regulator coupled to provide current to the center tap; a switching circuit coupled to the first end tap and the second end tap, the switching circuit alternately coupling the first end tap and the second end tap to ground at a frequency; and a resonant circuit magnetically coupled to the first inductor, the resonant circuit wirelessly transmitting power. In some embodiments, the switching circuit can be formed of FETs. The current provided to the center tap can be controlled in response to current sensors.
    Type: Application
    Filed: October 1, 2015
    Publication date: April 6, 2017
    Inventor: Mehmet K. NALBANT
  • Patent number: 9577438
    Abstract: The present disclosure relates wireless power transfer. In some embodiments, DC power is received through one or more inductors and switched to provide alternating current through a TX coil with a pair of power FETs coupled between opposite sides of the TX coil and ground such that current flows through one of the pair of FETs at a time. In some embodiments, the pair of FETs can be driven in adaptive resonant mode to operate at a resonance. In some embodiments, the pair of FETs are driven at a particular frequency.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: February 21, 2017
    Assignee: INTEGRATED DEVICE TECHNOLOGY INC
    Inventor: Mehmet K. Nalbant
  • Publication number: 20160268848
    Abstract: A wireless power transmission system is presented. The wireless power circuit includes an adaptive transmitter coupled to a transmit coil; a receive coil in interaction with the transmit coil, the receive coil being thin and having an inner diameter large enough to accommodate sensors of a wearable device; and a receive circuit receiving power from the receive coil.
    Type: Application
    Filed: March 10, 2016
    Publication date: September 15, 2016
    Inventor: Mehmet K. NALBANT
  • Publication number: 20150303709
    Abstract: In accordance with some embodiments, a transmitter for wireless transfer includes a rectifier that receives an AC voltage and provides a DC voltage; a capacitor that receives and smooths the DC voltage; a regulator that receives the DC voltage and outputs an input voltage; and a wireless transmitter that receives the input voltage and transmits wireless power.
    Type: Application
    Filed: April 16, 2015
    Publication date: October 22, 2015
    Inventor: Mehmet K. Nalbant
  • Publication number: 20150280452
    Abstract: The present disclosure relates wireless power transfer. In some embodiments, DC power is received through one or more inductors and switched to provide alternating current through a TX coil with a pair of power FETs coupled between opposite sides of the TX coil and ground such that current flows through one of the pair of FETs at a time. In some embodiments, the pair of FETs can be driven in adaptive resonant mode to operate at a resonance. In some embodiments, the pair of FETs are driven at a particular frequency.
    Type: Application
    Filed: March 27, 2015
    Publication date: October 1, 2015
    Inventor: Mehmet K. Nalbant
  • Publication number: 20140132077
    Abstract: A wireless power transmitter comprises a bridge inverter including a first switch and a second switch coupled together with a first switching node therebetween, and a first capacitor coupled to the first switching node. The transmitter further includes control logic configured to control the first switch and the second switch according to an operating frequency to generate an AC power signal from a DC power signal, and a resonant tank operably coupled to the first switching node of the bridge inverter, the resonant tank configured to receive the AC power signal and generate an electromagnetic field responsive thereto. A method for operating the wireless power transmitter and a method for making the wireless power transmitter are also disclosed.
    Type: Application
    Filed: November 8, 2013
    Publication date: May 15, 2014
    Applicant: Integrated Device Technology
    Inventor: Mehmet K. Nalbant
  • Patent number: 8629660
    Abstract: A boost regulator is provided that has increased efficiency. The increased efficiency is provided by incorporating a sensing circuit that senses when the current in the boost regulator's inductor is near zero or when the voltage at its switching node is near zero or virtual ground. A switching signal is provided to the boost regulator's switching transistor when the near zero current or voltage is sensed. Switching at the near zero current or voltage moment (the “critical conduction moment”) helps to eliminate or minimize the power loss associated with switching the transistor at a time other than during the critical conduction moment.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: January 14, 2014
    Assignee: Maxim Integrated Products, Inc.
    Inventor: Mehmet K. Nalbant
  • Publication number: 20100225290
    Abstract: A boost regulator is provided that has increased efficiency. The increased efficiency is provided by incorporating a sensing circuit that senses when the current in the boost regulator's inductor is near zero or when the voltage at its switching node is near zero or virtual ground. A switching signal is provided to the boost regulator's switching transistor when the near zero current or voltage is sensed. Switching at the near zero current or voltage moment (the “critical conduction moment”) helps to eliminate or minimize the power loss associated with switching the transistor at a time other than during the critical conduction moment.
    Type: Application
    Filed: January 29, 2010
    Publication date: September 9, 2010
    Applicant: MAXIM INTEGRATED PRODUCTS, INC.
    Inventor: MEHMET K. NALBANT
  • Patent number: 7218173
    Abstract: Class D amplifiers and methods of amplification wherein a load is periodically coupled to a positive power supply connection through a first switch or a negative power supply connection through a second switch for a period responsive to an input signal. A third switch couples the load to a circuit ground connection during times when the load is not coupled to either the positive or the negative power supply connection. This provides a load current recirculation path through the ground connection, which together with the inductance of the load, tends to maintain the load current when both the first and second switches are open. Loads such as speakers may be directly connected to the amplifier output, or may be coupled to the amplifier output through a filter. Various exemplary control methods, including use of feedback, are disclosed.
    Type: Grant
    Filed: April 8, 2005
    Date of Patent: May 15, 2007
    Assignee: Maxim Integrated Products, Inc.
    Inventor: Mehmet K. Nalbant
  • Patent number: 7199643
    Abstract: Hot swappable pulse width modulation power supply circuits preferably realized in integrated circuit form. The hot swap circuits provide for de-bouncing, controlled charging of the input capacitor of the power supply circuit and soft-start of the pulse width modulator after charging the input capacitor. Other features include a low voltage lockout, and an output for coupling to a synchronous rectifier driver to synchronize synchronous rectifiers on the secondary side of a coupling transformer in isolated systems. The hot swap capability may be disabled through an enable pin, or not implemented by not connecting the integrated circuit in a manner to use the hot swap capability.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: April 3, 2007
    Assignee: Maxim Integrated Products, Inc.
    Inventor: Mehmet K. Nalbant
  • Patent number: 6763114
    Abstract: An improved class D power amplifier is disclosed. Instead of using prior art triangle waves, a ramp signal having a first state of about 90% or greater is used and a second state for the remainder of the cycle. Further, the amplifier includes flip-flops and amplifiers with hysteresis to reduce switching noise. Also, level shifting circuitry is provided for shifting the level of the input signal in response to both DC and AC variations in the power supply and to provide power supply rejection. Still further, multiple channels may be used with all of the channels synchronized to the same timing source.
    Type: Grant
    Filed: September 1, 1999
    Date of Patent: July 13, 2004
    Assignee: Microsemi Corporation
    Inventor: Mehmet K. Nalbant