1
Parviz Parto, Yang Chen: Pre-bias protection circuit for converter. International Rectifier Corporation, Ostrolenk Faber Gerb & Soffen, January 27, 2009: US07482795 (23 worldwide citation)

A pre-bias protection circuit for a converter circuit including a switching stage having high-and low-side switches connected in series at a switching node and an output stage connected to the switching node having a capacitor having a pre-existing pre-bias voltage at startup of the converter circui ...


2
Brian Stevenson, Parviz Parto, Yang Chen: Minimum pulse width for pulse width modulation control. International Rectifier Corporation, Fulwider Patton, August 17, 2010: US07777587 (12 worldwide citation)

The rising edge of a pulse width modulated output signal occurs after an input ramp signal starts to rise. The ramp signal starts to rise after the rising edge of a periodic set signal and before the falling edge of a periodic set signal. A feedback control signal intersects a substantially linear r ...


3
Amir M Rahimi, Parviz Parto: Power supply circuitry and current measurement. International Rectifier Corporation, Chapin IP Law, May 19, 2015: US09035624 (6 worldwide citation)

According to one configuration, a power supply circuit includes an inductor, a monitor circuit, a storage resource, and a processor circuit. The inductor resides in a phase of the power supply and conveys current to a load. The monitor circuit monitors and samples the voltage of a node in the power ...


4
Parviz Parto, Seungbeom Kevin Kim, Amir M Rahimi, Suresh Kariyadan: Synchronous buck converter including multi-mode control for light load efficiency and related method. International Rectifier Corporation, Farjami & Farjami, December 16, 2014: US08912773 (4 worldwide citation)

According to one embodiment, a synchronous buck converter comprises a multi-mode control circuit for detecting a load condition of a variable load, an output stage driven by the multi-mode control circuit, wherein the variable load is coupled to the output stage, and a feedback circuit connected bet ...


5
Eung San Cho, Kevin Moody, Parviz Parto: Semiconductor package including a power stage and integrated output inductor. Infineon Technologies Americas, Farjami & Farjami, November 17, 2015: US09190383 (4 worldwide citation)

In one implementation, a power semiconductor package includes a conductive carrier including a switch node segment and a power output segment. The power semiconductor package also includes an integrated output inductor stacked over the conductive carrier and configured to couple the switch node segm ...


6
Eung San Cho, Kevin Moody, Parviz Parto: Power converter package with an integrated output inductor. Infineon Technologies Americas, Shumaker & Sieffert P A, September 6, 2016: US09437570 (3 worldwide citation)

In one implementation, a power semiconductor package includes a conductive carrier including a switch node segment and a power output segment. The power semiconductor package also includes an integrated output inductor stacked over the conductive carrier and configured to couple the switch node segm ...


7
Parviz Parto, Amir M Rahimi: Adaptive off time control scheme for semi-resonant and hybrid converters. Infineon Technologies Americas, Shumaker & Sieffert P A, May 16, 2017: US09653996 (2 worldwide citation)

In one implementation, a voltage converter includes a high side power switch, and first and second low side power switches. The voltage converter also includes a driver stage for driving the high side power switch and the first and second low side power switches, and an adaptive OFF-time control cir ...


8
Amir M Rahimi, Parviz Parto, Peyman Asadi: Voltage regulator having an emulated ripple generator. Infineon Technologies Americas, Shumaker & Sieffert P A, March 7, 2017: US09588532 (1 worldwide citation)

According to an exemplary implementation, a voltage regulator includes an emulated ripple generator. The emulated ripple generator includes a high side switch configured to control charging of an emulated ripple. The emulated ripple generator further includes a low side switch configured to control ...


9
Amir M Rahimi, Parviz Parto, Saurabh Jayawant: Circuit and method for producing an average output inductor current indicator. Infineon Technologies Americas, Shumaker & Sieffert P A, November 22, 2016: US09502980 (1 worldwide citation)

In one implementation, a circuit for producing an average output inductor current indicator in a voltage converter is configured to start a counter when a high side power switch turns on, to sense a sample current through an output inductor of the voltage converter after the high side power switch t ...


10
Saurabh Jayawant, Venkat Sreenivas, Parviz Parto, Robert T Carroll: Pre-filtering in a power supply control circuit. Infineon Technologies Americas, Chapin IP Law, February 21, 2017: US09577522 (1 worldwide citation)

A hybrid power supply circuit includes a digital circuit, a digital-to-analog converter circuit, and an analog compensator circuit (analog control circuit). According to one configuration, the digital circuit includes a digital pre-filter that substantially matches settings of analog filter circuitr ...