Patents by Inventor Faisal Abdellatif Elseddeek Ali Hussien
Faisal Abdellatif Elseddeek Ali Hussien 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: 9891643Abstract: A method to adjust the load transient regulation of a low drop-out (LDO)/load switch linear voltage regulator (LVR) with an n-type pass element having an open loop transfer function, including determining during a load transient event if the gate of the pass—element goes lower than a scaled value of the output voltage or a constant voltage level, generating a control signal that controls a current sink block if the gate voltage of the pass element is lower than the output voltage, and enabling a current sink block that is controlled by the control signal and connecting the output of the current sink block to the output of the LVR.Type: GrantFiled: December 4, 2015Date of Patent: February 13, 2018Assignee: Vidatronic, Inc.Inventors: Mohamed Ahmed Mohamed El-Nozahi, Faisal Abdellatif Elseddeek Ali Hussien, Mohamed Mostafa Saber Aboudina, Sameh Ahmed Assem Mostafa Ibrahim, Moises Emanuel Robinson
-
Patent number: 9785164Abstract: A low drop-out (LDO)/load switch linear voltage regulator (LVR) circuit having a first input terminal and a first output terminal, includes: a passive network with a second input terminal connected to the first input terminal and a second output terminal; a feedback network with a third input terminal connected to the first output terminal and a third output terminal; a pass element having a fourth input terminal connected to the first input terminal, a fourth output terminal connected to the first output terminal and first control terminal; a combiner having a fifth input connected to the second input, a sixth input connected to the third output and a fifth output connected to the first control terminal.Type: GrantFiled: January 6, 2016Date of Patent: October 10, 2017Assignee: Vidatronic, Inc.Inventors: Mohamed Mostafa Saber Aboudina, Sameh Ahmed Assem Mostafa Ibrahim, Mohamed Ahmed Mohamed El-Nozahi, Faisal Abdellatif Elseddeek Ali Hussien
-
Patent number: 9710003Abstract: An architecture and method to maintain stability of a low drop-out (LDO)/load switch linear voltage regulator (LVR). The architecture method support optionally determining during a power-up phase and by using a load detection circuit, the estimated load parameters that represents at least one selected from a group consisting of: the load time constant and the load resistor at an output node of the LDO/load switch LVR, and adjusting, based on the estimated output load parameters, an adaptive RC network in the LDO/load switch LVR, wherein the adaptive RC network produces an adaptive zero in a feedback network transfer function of the LDO/load switch LVR, wherein the adaptive zero reduces an effect of a non-dominant pole in the open loop transfer function of the LDO/load switch LVR, and wherein a frequency of the adaptive zero is adjusted based on the estimated load parameters.Type: GrantFiled: March 14, 2014Date of Patent: July 18, 2017Assignee: Vidatronic, Inc.Inventors: Mohamed Ahmed Mohamed El-Nozahi, Mohamed Mostafa Saber Aboudina, Sameh Assem Ibrahim, Faisal Abdellatif Elseddeek Ali Hussien, Moises Emanuel Robinson
-
Publication number: 20160195883Abstract: A low drop-out (LDO)/load switch linear voltage regulator (LVR) circuit having a first input terminal and a first output terminal, includes: a passive network with a second input terminal connected to the first input terminal and a second output terminal; a feedback network with a third input terminal connected to the first output terminal and a third output terminal; a pass element having a fourth input terminal connected to the first input terminal, a fourth output terminal connected to the first output terminal and first control terminal; a combiner having a fifth input connected to the second input, a sixth input connected to the third output and a fifth output connected to the first control terminal.Type: ApplicationFiled: January 6, 2016Publication date: July 7, 2016Applicant: Vidatronic, Inc.Inventors: Mohamed Mostafa Saber Aboudina, Sameh Ahmed Assem Mostafa Ibrahim, Mohamed Ahmed Mohamed El-Nozahi, Faisal Abdellatif Elseddeek Ali Hussien
-
Publication number: 20160161961Abstract: A method to adjust the load transient regulation of a low drop-out (LDO)/load switch linear voltage regulator (LVR) with an n-type pass element having an open loop transfer function, including determining during a load transient event if the gate of the pass—element goes lower than a scaled value of the output voltage or a constant voltage level, generating a control signal that controls a current sink block if the gate voltage of the pass element is lower than the output voltage, and enabling a current sink block that is controlled by the control signal and connecting the output of the current sink block to the output of the LVR.Type: ApplicationFiled: December 4, 2015Publication date: June 9, 2016Applicant: Vidatronic, Inc.Inventors: Mohamed Ahmed Mohamed El-Nozahi, Faisal Abdellatif Elseddeek Ali Hussien, Mohamed Mostafa Saber Aboudina, Sameh Ahmed Assem Mostafa Ibrahim, Moises Emanuel Robinson
-
Patent number: 9287772Abstract: A soft-start/soft-stop (SS) controller for a voltage regulator. The SS controller includes a power up/down detector configured to perform at least one selected from a group consisting of detecting a power on condition of the voltage regulator to determine a start-up time period and detecting a power off condition of the voltage regulator to determine a shut-down time period, and a ramped reference voltage signal generator configured to perform at least one selected from a group consisting of increasing a voltage level of a ramped reference voltage signal using a pre-determined ramp-up rate during the start-up time period and decreasing the voltage level of the ramped reference voltage signal using a pre-determined ramp-down rate during the shut-down time period, wherein the ramped reference voltage signal is supplied to the voltage regulator for controlling an output voltage level of the voltage regulator.Type: GrantFiled: March 6, 2013Date of Patent: March 15, 2016Assignee: Vidatronic, Inc.Inventors: Faisal Abdellatif Elseddeek Ali Hussien, Mohamed Mostafa Saber Aboudina, Moises Emanuel Robinson
-
Publication number: 20160026199Abstract: An architecture and method to maintain stability of a low drop-out (LDO)/load switch linear voltage regulator (LVR). The architecture method support optionally determining during a power-up phase and by using a load detection circuit, the estimated load parameters that represents at least one selected from a group consisting of: the load time constant and the load resistor at an output node of the LDO/load switch LVR, and adjusting, based on the estimated output load parameters, an adaptive RC network in the LDO/load switch LVR, wherein the adaptive RC network produces an adaptive zero in a feedback network transfer function of the LDO/load switch LVR, wherein the adaptive zero reduces an effect of a non-dominant pole in the open loop transfer function of the LDO/load switch LVR, and wherein a frequency of the adaptive zero is adjusted based on the estimated load parameters.Type: ApplicationFiled: March 14, 2014Publication date: January 28, 2016Applicant: Vidatronic, Inc.Inventors: Mohamed Ahmed Mohamed El-Nozahi, Mohamed Mostafa Saber Aboudina, Sameh Assem Ibrahim, Faisal Abdellatif Elseddeek Ali Hussien, Moises Emanuel Robinson
-
Patent number: 8917070Abstract: A method to maintain stability of a low drop-out (LDO)/load switch linear voltage regulator (LVR). The method includes determining, during a power-up phase and by a capacitance sensing circuit, an estimated output capacitance value at an output node of the LDO/load switch LVR, and adjusting, based on the estimated output capacitance value, an adaptive RC network in the LDO/load switch LVR, wherein the adaptive RC network produces an adaptive zero in a feedback network transfer function of the LDO/load switch LVR, wherein the adaptive zero reduces an effect of a non-dominant pole in the open loop transfer function of the LDO/load switch LVR, and wherein a frequency of the adaptive zero is inversely proportional to the estimated output capacitance value.Type: GrantFiled: March 14, 2013Date of Patent: December 23, 2014Assignee: Vidatronic, Inc.Inventors: Mohamed Ahmed Mohamed El-Nozahi, Mohamed Mostafa Saber Aboudina, Sameh Assem Ibrahim, Faisal Abdellatif Elseddeek Ali Hussien, Moises Emanuel Robinson
-
Publication number: 20140266104Abstract: A method to maintain stability of a low drop-out (LDO)/load switch linear voltage regulator (LVR). The method includes determining, during a power-up phase and by a capacitance sensing circuit, an estimated output capacitance value at an output node of the LDO/load switch LVR, and adjusting, based on the estimated output capacitance value, an adaptive RC network in the LDO/load switch LVR, wherein the adaptive RC network produces an adaptive zero in a feedback network transfer function of the LDO/load switch LVR, wherein the adaptive zero reduces an effect of a non-dominant pole in the open loop transfer function of the LDO/load switch LVR, and wherein a frequency of the adaptive zero is inversely proportional to the estimated output capacitance value.Type: ApplicationFiled: March 14, 2013Publication date: September 18, 2014Applicant: VIDATRONIC, INC.Inventors: Mohamed Ahmed Mohamed El-Nozahi, Mohamed Mostafa Saber Aboudina, Sameh Assem Ibrahim, Faisal Abdellatif Elseddeek Ali Hussien, Moises Emanuel Robinson
-
Publication number: 20140266106Abstract: A novel architecture and method to maintain stability of a low drop-out (LDO)/load switch linear voltage regulator (LVR). The architecture and method also support optionally determining, during a power-up phase and by a capacitance sensing circuit, an estimated output capacitance value at an output node of the LDO/load switch LVR, and adjusting, based on the estimated output capacitance value, an adaptive RC network in the LDO/load switch LVR, wherein the adaptive RC network produces an adaptive zero in a feedback network transfer function of the LDO/load switch LVR, wherein the adaptive zero reduces an effect of a non-dominant pole in the open loop transfer function of the LDO/load switch LVR, and wherein a frequency of the adaptive zero is inversely proportional to the estimated output capacitance value.Type: ApplicationFiled: June 12, 2013Publication date: September 18, 2014Inventors: Mohamed Ahmed Mohamed El-Nozahi, Mohamed Mostafa Saber Aboudina, Sameh Assem Ibrahim, Faisal Abdellatif Elseddeek Ali Hussien, Moises Emanuel Robinson
-
Publication number: 20140253072Abstract: A soft-start/soft-stop (SS) controller for a voltage regulator. The SS controller includes a power up/down detector configured to perform at least one selected from a group consisting of detecting a power on condition of the voltage regulator to determine a start-up time period and detecting a power off condition of the voltage regulator to determine a shut-down time period, and a ramped reference voltage signal generator configured to perform at least one selected from a group consisting of increasing a voltage level of a ramped reference voltage signal using a pre-determined ramp-up rate during the start-up time period and decreasing the voltage level of the ramped reference voltage signal using a pre-determined ramp-down rate during the shut-down time period, wherein the ramped reference voltage signal is supplied to the voltage regulator for controlling an output voltage level of the voltage regulator.Type: ApplicationFiled: March 6, 2013Publication date: September 11, 2014Applicant: VIDATRONIC, INC.Inventors: Faisal Abdellatif Elseddeek Ali Hussien, Mohamed Mostafa Saber Aboudina, Moises E. Robinson