Patents Assigned to Dialogic (US) Inc.
  • Patent number: 11495567
    Abstract: A multi-pin wafer level chip scale package is achieved. One or more solder pillars and one or more solder blocks are formed on a silicon wafer wherein the one or more solder pillars and the one or more solder blocks all have a top surface in a same horizontal plane. A pillar metal layer underlies the one or more solder pillars and electrically contacts the one or more solder pillars with the silicon wafer through an opening in a polymer layer over a passivation layer. A block metal layer underlies the one or more solder blocks and electrically contacts the one or more solder pillars with the silicon wafer through a plurality of via openings through the polymer layer over the passivation layer wherein the block metal layer is thicker than the pillar metal layer.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: November 8, 2022
    Assignee: Dialog Semiconductor (UK) Limited
    Inventors: Habeeb Mohiuddin Mohammed, Rajesh Subraya Aiyandra
  • Patent number: 11496051
    Abstract: A power converter includes two flying capacitors coupled to a network of switches, two inductors and a driver. The network of switches has a first switch to couple the first flying capacitor to a first port, a first ground switch to couple the first flying capacitor to ground, a second switch to couple the second flying capacitor to the first port, a second ground switch to couple the second flying capacitor to ground. The driver drives the network of switches with a sequence of states comprising a first state. In the first state the first port is coupled to a second port via a first path and a second path. The first path includes the first switch, the first flying capacitor and the first inductor. The second path includes the second switch, the second flying capacitor and the second inductor; the ground port is decoupled from the second port.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: November 8, 2022
    Assignee: Dialog Semiconductor (UK) Limited
    Inventor: Holger Petersen
  • Patent number: 11494315
    Abstract: An arbiter for use with a plurality of request signals is presented. The arbiter includes a sequence identifier to identify an order between the plurality of request signals. The arbiter provides a plurality of output signals in which each output signal is associated with a request signal. When the request signals are provided in a sequential order the output signals are provided in the identified sequential order. When the request signals are provided substantially at the same time the output signals are provided in an arbitrary sequential order. A corresponding signal arbitration method and an electronic circuit comprising the arbiter are also presented.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: November 8, 2022
    Assignee: Dialog Semiconductor B.V.
    Inventor: Paulus Augustinus Joanna Janssens
  • Patent number: 11482995
    Abstract: A pulse width modulator PWM circuit and a corresponding method are presented. The PWM circuit receives a control signal and a clock signal. The PWM circuit generates an output signal based on the control signal and the clock signal. The output signal has a first or second signal value. The PWM circuit has a delay circuit to generate, by delaying the clock signal by a delay period, a first enable signal for setting the output signal to the first signal value. The PWM circuit has a ramp generator to generate a ramp signal based on the clock signal. The PWM circuit has a comparator to generate, by comparing the control signal with the ramp signal, a second enable signal for setting the output signal to the second signal value. By delaying the clock signal by the delay period, a minimum on-time of the output signal may be reduced.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: October 25, 2022
    Assignee: Dialog Semiconductor (UK) Limited
    Inventors: Jindrich Svorc, Jens Masuch
  • Patent number: 11482928
    Abstract: A solution is provided for adaptive slope compensation in a DC-DC switching converter. Jitter is reduced for on times less than 50% Tpd by using two or more different slopes for the compensation ramp. Additionally, any discontinuities at the 50% duty cycle point are reduced. Details of the compensation ramp are described, where the ramp rate for the first half of the switching period, for on times greater than 50% Tpd, decreases with increasing on time until, at an on time of 100% Tpd, it is approximately zero. In addition, the ramp rate for the second half of the switching period, for on times greater than 50% Tpd, decreases with decreasing on time until, at a duty of 50%, it is equal to the ramp rate used for the first half of the switching period.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: October 25, 2022
    Assignee: Dialog Semiconductor (UK) Limited
    Inventors: Rebecca Tristram, Mark Childs, Jens Masuch
  • Patent number: 11469664
    Abstract: The present document describes a power converter configured to provide energy at an output based on energy provided at an input. The power converter comprises a first switch, wherein a first node is coupled to the input and wherein a second node is coupled to an intermediate point, a second switch, wherein a first node is coupled to the intermediate point and wherein a second node is coupled to an inductor point, a capacitor, wherein a first node of the capacitor is coupled to the intermediate point, a first diode element, wherein a first node is coupled to a second node of the capacitor and wherein a second node is coupled to the inductor point, a second diode element, wherein a first node is coupled to a reference port, and wherein a second node is coupled to the second node of the capacitor; and an inductor, wherein a first node is coupled to the inductor point and wherein a second node is coupled to the output.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: October 11, 2022
    Assignee: Dialog Semiconductor (UK) Limited
    Inventors: Ambreesh Bhattad, Horst Knoedgen, James T. Doyle, Milan Dragojevic
  • Patent number: 11463006
    Abstract: The present document relates to power converters. A power converter has a first stage coupled between an input of the power converter and an intermediate node, and a second stage coupled between the intermediate node and an output of the power converter. The first stage has a capacitive voltage divider with a first flying capacitor, and the second stage has a second flying capacitor and an inductor. On the one hand, the power converter establishes, in a magnetizing state, a magnetizing current path in the second stage from the intermediate node via the inductor to the output of the power converter. On the other hand, the power converter establishes, in a capacitive state, a parallel current path in the second stage from the intermediate node via the second flying capacitor to the output of the power converter.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: October 4, 2022
    Assignee: Dialog Semiconductor (UK) Limited
    Inventor: Francesco Cannillo
  • Patent number: 11456663
    Abstract: A power converter includes a network of switches having a first capacitor switch coupled to a first flying-capacitor, a first switch to couple a second flying-capacitor to a first port, an inductor coupled to a ground switch. A driver drives the network of switches in two states. In the first state the ground port is coupled to a second port via a first path comprising the first flying-capacitor and the inductor, and the first port is coupled to the second port via a second path comprising the first switch, the second flying-capacitor and the inductor. In the second state the ground is coupled to the second port via a third path comprising the ground switch and the inductor, and one of the first port and the ground port is coupled to the second port via a fourth path comprising the first flying-capacitor while bypassing the inductor.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: September 27, 2022
    Assignee: Dialog Semiconductor (UK) Limited
    Inventor: Holger Petersen
  • Patent number: 11456611
    Abstract: A method of managing power and a power management circuit operable in a plurality of modes are presented. The power management circuit includes a three terminals switching converter coupled to a controller. The switching converter has a single inductor, two sets of switches, a bypass switch and a transition switch. The first set of switches is coupled to an input terminal. The second set of switches is coupled to a battery terminal. The bypass switch is coupled between the battery terminal and a load terminal. The single inductor is provided between a first switching node and a second switching node. The transition switch is provided between the first switching node and the battery or the load terminal. A controller is configured to select a mode of operation by changing a state of at least one of the bypass switch and the transition switch.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: September 27, 2022
    Assignee: Dialog Semiconductor (UK) Limited
    Inventors: Pietro Gambetta, Mark Mercer
  • Patent number: 11455455
    Abstract: A method for controlling crosstalk between multiple noise generating wiring tracks and a quiet wiring track by determining a parallel common run length and determining the number of threshold lengths into which the maximum parallel common run length is divided. The space between the quiet wiring track and each wiring track of the noise generating wiring tracks is determined. Multiple metal wiring track structures on one metal wiring level of and multiple metal wiring track structures on another metal wiring level of an integrated circuit that are formed as segments that have various distances between the metal wiring track structures of one wiring level and multiple metal wiring track structures of the other wiring level to form a stair-step or ladder structure that controls individually the spacing applied between multiple active noise wiring track structures and one quiet wiring track structure.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: September 27, 2022
    Assignee: Dialog Semiconductor (UK) Limited
    Inventors: Giuliano Fernandes Marinelli, John Fairnie, Simon Nicol
  • Patent number: 11451133
    Abstract: The present document describes a control unit for a converter circuit comprising a plurality of converter blocks, wherein each converter block comprises one or more switches which are turned on or off during switching events, and wherein at least some of the converter blocks share a common supply rail. The control unit is configured to determine that a first converter block from the plurality of converter blocks requests a switching event at a first time instant. Furthermore, the control unit is configured to determine whether a second converter block from the plurality of converter blocks, with which the first converter block shares a common supply rail, has a reserved switching time slot for a switching event at the first time instant.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: September 20, 2022
    Assignee: Dialog Semiconductor (UK) Limited
    Inventor: Nuno Dias
  • Patent number: 11444453
    Abstract: An ESD protection circuit is provided. An embodiment provides an ESD protection circuit of a crystal oscillator for bearing an output swing level in an ESD IO for improving a reference clock isolation by adding a stacked diode to the ESD protection circuit and for improving a protection function by applying a secondary diode structure.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: September 13, 2022
    Assignee: Dialog Semiconductor Korea Inc.
    Inventor: Je Cheol Moon
  • Patent number: 11445586
    Abstract: A lighting system and a method are provided with an adaptive power balancing scheme which reduces or eliminates flicker by sensing the operation of a lamp that is connected to an electronic transformer and adaptively controlling the drive circuit of the lamp to prevent unexpected reset of the electronic transformer. There is provided a lamp with a light source and a drive circuit for the light source; said drive circuit has a power stage for regulating a voltage supplied to the light source, an energy storage device, and control means arranged to selectively disable the power stage. Power is provided to the light source by the energy storage device when the power stage is disabled.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: September 13, 2022
    Assignees: Dialog Integrated Circuits (Tianjian) Limited, Dialog Semiconductor (Shenzhen) Limited
    Inventors: Nailong Wang, Bin Hou, Zhenyu Song, Wei Qi, Guanglai Deng, Zhiqiu Ye
  • Patent number: 11437916
    Abstract: A flyback converter is disclosed that includes an auxiliary switch controller that adaptively controls the auxiliary switch for improved zero voltage switching. The auxiliary switch control adaptively adjusts the auxiliary switch on-time period responsive to a transformer reset time for the flyback converter, a resonant oscillation period for a power switch terminal voltage for a power switch transistor, and an on-time period for the power switch transistor to provide the improved zero voltage switching.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: September 6, 2022
    Assignee: Dialog Semiconductor Inc.
    Inventors: Cong Zheng, Wenduo Liu, Jianming Yao
  • Patent number: 11432386
    Abstract: A driving circuit and a method for a backlight using light-emitting diodes, LED, the backlight having a first and second segment is presented. A driving circuit for an LED backlight with a first and second segment has a first terminal, a second terminal for sensing a first signal, a third terminal for connecting to a first current generating unit for providing a first driving current, a first current regulation circuit, a fourth terminal for sensing a second signal, a fifth terminal for connecting to a second current generating unit, a second current regulation circuit for controlling the second current generating unit, and a control unit which is prepared to adjust the supply voltage and to adjust the first and/or second driving current in dependence on the first and the second signal by means of the first and/or the second current regulation circuits.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: August 30, 2022
    Assignee: Dialog Semiconductor (UK) Limited
    Inventor: David Gamperl
  • Patent number: 11425657
    Abstract: A sensor data transmitting apparatus that transmits sensor data with low power and a method therefor are provided. According to an embodiment of the disclosure, a sensor data transmitting apparatus that transmits sensor data includes: a wireless communicator configured to access a network through an access point (AP); a timer module configured to generate a wake-up signal in a predetermined cycle; a storage configured to include a non-volatile memory and a volatile memory, a small booting code and a full booting code being recorded in the non-volatile memory and the volatile memory being capable of recording the sensor data; and a processor configured to execute the small booting code or the full booting code, collect the sensor data from a sensor after executing the small booting code, and transmit the sensor data to the AP.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: August 23, 2022
    Assignee: Dialog Semiconductor Korea Inc.
    Inventors: Hee Jun Kim, Beomjin Kim
  • Patent number: 11424680
    Abstract: The present document relates to Single Inductor Dual Input (SIDI) buck power converters. More specifically, a dual input power converter may comprise an inductor, a first high-side switching element, a second high-side switching element, and a low-side switching element. The inductor may be coupled between an intermediate node and an output of the dual input power converter. The first high-side switching element may be coupled between a first input of the dual input power converter and the intermediate node. The second high-side switching element may be coupled between a second input of the dual input power converter and the intermediate node. The low-side switching element may be coupled between the intermediate node and a reference potential.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: August 23, 2022
    Assignee: Dialog Semiconductor (UK) Limited
    Inventors: Francesco Cannillo, Holger Petersen
  • Patent number: 11404040
    Abstract: A method of automated feedforward filter design comprising designing a feedforward filter for a system implementing active noise cancelling is described. The method includes designing the feedforward filter by determining a filter transfer function of the feedforward filter. Optionally, the filter transfer function is determined using a least square method. The method also includes determining the filter transfer function by defining a target transfer function of the feedforward filter and applying the least square method using the target transfer function to determine a filter expression for the filter transfer function. Optionally, the least square method is a weighted least square method.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: August 2, 2022
    Assignee: Dialog Semiconductor B.V.
    Inventors: Fotios Kontomichos, Wessel Harm Lubberhuizen, Paul Shields
  • Patent number: 11398846
    Abstract: A transceiver having an antenna-connection port and an FEM-connection port is disclosed. Exemplary embodiments provide a transceiver having an antenna-connection port and an FEM-connection port that may support a connection to an external FEM and also support a connection to an antenna without a separate RF switch when an antenna is used without an FEM.
    Type: Grant
    Filed: December 1, 2019
    Date of Patent: July 26, 2022
    Assignee: Dialog Semiconductor Korea Inc.
    Inventor: Hee Yong Yoo
  • Patent number: 11395388
    Abstract: There is presented a current driver and a corresponding method for driving a current-controlled component such as a semiconductor light source with a driving current. The current driver includes a current regulator for regulating the driving current, a power circuit, and an input stage. The input stage receives a first signal and a second signal and is operable in two phases. In the first phase, the first signal is used to power the power circuit, and in the second phase, the second signal is used to power the power circuit. The current driver may be implemented in an array of cells in which each cell includes a current driver coupled to a current controlled component. The array of cells may be a part of a display device.
    Type: Grant
    Filed: July 6, 2021
    Date of Patent: July 19, 2022
    Assignee: Dialog Semiconductor (UK) Limited
    Inventors: Ze Han, Nailong Wang, Zhenyu Song