Patents by Inventor George A. Hariman
George A. Hariman 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: 10512129Abstract: Boost regulators with dynamic regulation band are disclosed. In certain configurations, a boost regulator system includes a field effect transistor (FET) current source having a gate controlled by a current level control signal, a source that receives a regulator output voltage, and a drain that outputs a current. The boost regulator system further includes a boost regulator that generates the regulator output voltage based on a reference voltage. The boost regulator includes a headroom detection circuit electrically coupled to the drain of the FET current source and operable to generate a headroom signal indicating a detected voltage headroom of the FET current source. The boost regulator further includes a regulator control circuit that controls a voltage level of the reference voltage based on the headroom signal, and that controls a size of a regulation band of the boost regulator based on the current level control signal.Type: GrantFiled: December 10, 2018Date of Patent: December 17, 2019Assignee: Skyworks Solutions, Inc.Inventors: George A. Hariman, Chak S. Ngai, Wendy Ng
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Publication number: 20190116638Abstract: Boost regulators with dynamic regulation band are disclosed. In certain configurations, a boost regulator system includes a field effect transistor (FET) current source having a gate controlled by a current level control signal, a source that receives a regulator output voltage, and a drain that outputs a current. The boost regulator system further includes a boost regulator that generates the regulator output voltage based on a reference voltage. The boost regulator includes a headroom detection circuit electrically coupled to the drain of the FET current source and operable to generate a headroom signal indicating a detected voltage headroom of the FET current source. The boost regulator further includes a regulator control circuit that controls a voltage level of the reference voltage based on the headroom signal, and that controls a size of a regulation band of the boost regulator based on the current level control signal.Type: ApplicationFiled: December 10, 2018Publication date: April 18, 2019Inventors: George A. Hariman, Chak S. Ngai, Wendy Ng
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Patent number: 10182476Abstract: Apparatus and methods for boost regulators with dynamic regulation band are disclosed. In certain configurations, a boost regulator system includes a boost regulator, a current source, and a light emitting element, such as a flash LED, that is controlled using a current generated by the current source. The boost regulator generates an output voltage that is used to power the current source. The boost regulator operates with a regulation band that changes based on a current level of the light emitting element.Type: GrantFiled: October 3, 2017Date of Patent: January 15, 2019Assignee: SKYWORKS SOLUTIONS, INC.Inventors: George A. Hariman, Chak S. Ngai, Wendy Ng
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Publication number: 20180124884Abstract: Apparatus and methods for boost regulators with dynamic regulation band are disclosed. In certain configurations, a boost regulator system includes a boost regulator, a current source, and a light emitting element, such as a flash LED, that is controlled using a current generated by the current source. The boost regulator generates an output voltage that is used to power the current source. The boost regulator operates with a regulation band that changes based on a current level of the light emitting element.Type: ApplicationFiled: October 3, 2017Publication date: May 3, 2018Inventors: George A. Hariman, Chak S. Ngai, Wendy Ng
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Patent number: 9876428Abstract: A voltage regulator device is disclosed, comprising a first pin and a second pin, a regulator circuit implemented between the first pin and the second pin, one or more internal blocks configured to be powered through a supply node to facilitate operation of the regulator circuit and an internal supply circuit coupled to the first pin, the second pin, and the supply node, the internal supply circuit configured to provide a supply voltage to the supply node from either or both of the first and second pins.Type: GrantFiled: May 13, 2016Date of Patent: January 23, 2018Assignee: Skyworks Solutions, Inc.Inventors: Chak S. Ngai, George A. Hariman, Daniel Chang, Roger Allen Smullen
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Patent number: 9801242Abstract: Apparatus and methods for boost regulators with dynamic regulation band are disclosed. In certain configurations, a boost regulator system includes a boost regulator, a current source, and a light emitting element, such as a flash LED, that is controlled using a current generated by the current source. The boost regulator generates an output voltage that is used to power the current source. The boost regulator operates with a regulation band that changes based on a current level of the light emitting element.Type: GrantFiled: September 8, 2016Date of Patent: October 24, 2017Assignee: SKYWORKS SOLUTEQNS, ENC.Inventors: George A. Hariman, Chak S. Ngai, Wendy Ng
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Publication number: 20170094734Abstract: Apparatus and methods for boost regulators with dynamic regulation band are disclosed. In certain configurations, a boost regulator system includes a boost regulator, a current source, and a light emitting element, such as a flash LED, that is controlled using a current generated by the current source. The boost regulator generates an output voltage that is used to power the current source. The boost regulator operates with a regulation band that changes based on a current level of the light emitting element.Type: ApplicationFiled: September 8, 2016Publication date: March 30, 2017Inventors: George A. Hariman, Chak S. Ngai, Wendy Ng
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Patent number: 9609708Abstract: A distributed system for driving strings of series-connected LEDs for backlighting, display and lighting applications that includes multiple intelligent satellite LED driver ICs connected to an interface IC via a serial lighting interface bus. The interface IC translates information obtained from a host microcontroller into instructions for the satellite LED driver ICs pertaining to such parameters as duty factor, current levels, phase delay and fault settings. Fault conditions in the LED driver ICs can be transmitted back to the interface IC. An analog current sense feedback system which also links the LED driver ICs determines the supply voltage for the LED strings.Type: GrantFiled: January 4, 2016Date of Patent: March 28, 2017Assignee: ADVANCED ANALOGIC TECHNOLOGIES INCORPORATEDInventors: Richard K. Williams, Kevin Peter D'Angelo, David Alan Brown, George A. Hariman
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Patent number: 9585211Abstract: Various implementations include circuits, devices and/or methods that enable the repeated generation of controlled surges with lower risk of component failure. Some implementations include a discharge control assembly including a discharge circuit and a controller. In some implementations, the discharge circuit is selectively connectable to a driver circuit, and the discharge circuit is configured to provide a dominant discharge path for the driver circuit when the driver circuit is effectively decoupled from a first load in order to decay an electrical condition of the driver circuit produced prior to the driver circuit being effectively decoupled from the first load. In some implementations, the controller is configured to selectively connect the driver circuit to a combination of the discharge circuit and the first load, and in at least one combination the discharge circuit is effectively coupled to the driver circuit when the first load is effectively decoupled from the driver circuit.Type: GrantFiled: September 10, 2014Date of Patent: February 28, 2017Assignee: Skyworks Solutions, Inc.Inventors: Wendy Ng, George A. Hariman
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Publication number: 20160336859Abstract: A voltage regulator device is disclosed, comprising a first pin and a second pin, a regulator circuit implemented between the first pin and the second pin, one or more internal blocks configured to be powered through a supply node to facilitate operation of the regulator circuit and an internal supply circuit coupled to the first pin, the second pin, and the supply node, the internal supply circuit configured to provide a supply voltage to the supply node from either or both of the first and second pins.Type: ApplicationFiled: May 13, 2016Publication date: November 17, 2016Inventors: Chak S. NGAI, George A. HARIMAN, Daniel CHANG, Roger Allen SMULLEN
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Publication number: 20160119990Abstract: A distributed system for driving strings of series-connected LEDs for backlighting, display and lighting applications that includes multiple intelligent satellite LED driver ICs connected to an interface IC via a serial lighting interface bus. The interface IC translates information obtained from a host microcontroller into instructions for the satellite LED driver ICs pertaining to such parameters as duty factor, current levels, phase delay and fault settings. Fault conditions in the LED driver ICs can be transmitted back to the interface IC. An analog current sense feedback system which also links the LED driver ICs determines the supply voltage for the LED strings.Type: ApplicationFiled: January 4, 2016Publication date: April 28, 2016Inventors: Richard K. Williams, Kevin Peter D'Angelo, David Alan Brown, George A. Hariman
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Patent number: 9232587Abstract: A distributed system for driving strings of series-connected LEDs for backlighting, display and lighting applications includes multiple intelligent satellite LED driver ICs connected to a an interface IC via serial bus. The interface IC translates information obtained from a host microcontroller into instructions for the satellite LED driver ICs pertaining to such parameters as duty factor, current levels, phase delay and fault settings. Fault conditions in the LED driver ICs can be transmitted back to the interface IC. An analog current sense feedback system which also links the LED driver ICs determines the supply voltage for the LED strings.Type: GrantFiled: January 9, 2012Date of Patent: January 5, 2016Assignee: ADVANCED ANALOGIC TECHNOLOGIES, INC.Inventors: Richard K. Williams, Kevin D'Angelo, David A. Brown, George A. Hariman
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Publication number: 20150077014Abstract: Various implementations include circuits, devices and/or methods that enable the repeated generation of controlled surges with lower risk of component failure. Some implementations include a discharge control assembly including a discharge circuit and a controller. In some implementations, the discharge circuit is selectively connectable to a driver circuit, and the discharge circuit is configured to provide a dominant discharge path for the driver circuit when the driver circuit is effectively decoupled from a first load in order to decay an electrical condition of the driver circuit produced prior to the driver circuit being effectively decoupled from the first load. In some implementations, the controller is configured to selectively connect the driver circuit to a combination of the discharge circuit and the first load, and in at least one combination the discharge circuit is effectively coupled to the driver circuit when the first load is effectively decoupled from the driver circuit.Type: ApplicationFiled: September 10, 2014Publication date: March 19, 2015Inventors: Wendy Ng, George A. Hariman
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Patent number: 8952619Abstract: A distributed system for driving strings of series-connected LEDs for backlighting, display and lighting applications includes multiple intelligent satellite LED driver ICs connected to a an interface IC via serial bus. The interface IC translates information obtained from a host microcontroller into instructions for the satellite LED driver ICs pertaining to such parameters as duty factor, current levels, phase delay and fault settings. Fault conditions in the LED driver ICs can be transmitted back to, the interface IC. An analog current sense feedback system which also links the LED driver ICs determines the supply voltage for the LED strings.Type: GrantFiled: January 10, 2012Date of Patent: February 10, 2015Assignee: Advanced Analogic Technologies IncorporatedInventors: Richard K. Williams, Kevin D'Angelo, David A. Brown, George A. Hariman
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Patent number: 8947407Abstract: A distributed system for driving strings of series-connected LEDs for backlighting, display and lighting applications includes multiple intelligent satellite LED driver ICs connected to a an interface IC via serial bus. The interface IC translates information obtained from a host microcontroller into instructions for the satellite LED driver ICs pertaining to such parameters as duty factor, current levels, phase delay and fault settings. Fault conditions in the LED driver ICs can be transmitted back to the interface IC. An analog current sense feedback system which also links the LED driver ICs determines the supply voltage for the LED strings.Type: GrantFiled: January 10, 2012Date of Patent: February 3, 2015Assignee: Advanced Analogic Technologies IncorporatedInventors: Richard K. Williams, Kevin D'Angelo, David A. Brown, George A. Hariman
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Patent number: 8933634Abstract: A distributed system for driving strings of series-connected LEDs for backlighting, display and lighting applications includes multiple intelligent satellite LED driver ICs connected to a an interface IC via serial bus. The interface IC translates information obtained from a host microcontroller into instructions for the satellite LED driver ICs pertaining to such parameters as duty factor, current levels, phase delay and fault settings. Fault conditions in the LED driver ICs can be transmitted back to the interface IC. An analog current sense feedback system which also links the LED driver ICs determines the supply voltage for the LED strings.Type: GrantFiled: January 10, 2012Date of Patent: January 13, 2015Assignee: Advanced Analogic Technologies IncorporatedInventors: Richard K. Williams, Kevin D'Angelo, David A. Brown, George A. Hariman
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Publication number: 20130082604Abstract: A distributed system for driving strings of series-connected LEDs for backlighting, display and lighting applications includes multiple intelligent satellite LED driver ICs connected to a an interface IC via serial bus. The interface IC translates information obtained from a host microcontroller into instructions for the satellite LED driver ICs pertaining to such parameters as duty factor, current levels, phase delay and fault settings. Fault conditions in the LED driver ICs can be transmitted back to the interface IC. An analog current sense feedback system which also links the LED driver ICs determines the supply voltage for the LED strings.Type: ApplicationFiled: January 10, 2012Publication date: April 4, 2013Applicant: ADVANCED ANALOGIC TECHNOLOGIES, INC.Inventors: Richard K. Williams, Kevin D'Angelo, David A. Brown, George A. Hariman
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Publication number: 20130082609Abstract: A distributed system for driving strings of series-connected LEDs for backlighting, display and lighting applications includes multiple intelligent satellite LED driver ICs connected to a an interface IC via serial bus. The interface IC translates information obtained from a host microcontroller into instructions for the satellite LED driver ICs pertaining to such parameters as duty factor, current levels, phase delay and fault settings. Fault conditions in the LED driver ICs can be transmitted back to, the interface IC. An analog current sense feedback system which also links the LED driver ICs determines the supply voltage for the LED strings.Type: ApplicationFiled: January 10, 2012Publication date: April 4, 2013Applicant: ADVANCED ANALOGIC TECHNOLOGIES, INC.Inventors: Richard K. Williams, Kevin D'Angelo, David A. Brown, George A. Hariman
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Publication number: 20130082614Abstract: A distributed system for driving strings of series-connected LEDs for backlighting, display and lighting applications includes multiple intelligent satellite LED driver ICs connected to a an interface IC via serial bus. The interface IC translates information obtained from a host microcontroller into instructions for the satellite LED driver ICs pertaining to such parameters as duty factor, current levels, phase delay and fault settings. Fault conditions in the LED driver ICs can be transmitted back to the interface IC. An analog current sense feedback system which also links the LED driver ICs determines the supply voltage for the LED strings.Type: ApplicationFiled: January 9, 2012Publication date: April 4, 2013Applicant: ADVANCED ANALOGIC TECHNOLOGIES, INC.Inventors: Richard K. Williams, Kevin D'Angelo, David A. Brown, George A. Hariman
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Publication number: 20130082615Abstract: A distributed system for driving strings of series-connected LEDs for backlighting, display and lighting applications includes multiple intelligent satellite LED driver ICs connected to a an interface IC via serial bus. The interface IC translates information obtained from a host microcontroller into instructions for the satellite LED driver ICs pertaining to such parameters as duty factor, current levels, phase delay and fault settings. Fault conditions in the LED driver ICs can be transmitted back to the interface IC. An analog current sense feedback system which also links the LED driver ICs determines the supply voltage for the LED strings.Type: ApplicationFiled: January 10, 2012Publication date: April 4, 2013Applicant: ADVANCED ANALOGIC TECHNOLOGIES, INC.Inventors: Richard K. Williams, Kevin D'Angelo, David A. Brown, George A. Hariman