Patents by Inventor Erick Omar Torres
Erick Omar Torres 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: 10666137Abstract: An inductor conducts a first current, which is variable. A first transistor is coupled through the inductor to an output node. The first transistor alternately switches on and off in response to a voltage signal, so that the first current is: enhanced while the first transistor is switched on in response to the voltage signal; and limited while the first transistor is switched off in response to the voltage signal. A second transistor is coupled to the first transistor. The second transistor conducts a second current, which is variable. On/off switching of the second transistor is independent of the voltage signal. Control circuitry senses the second current and adjusts the voltage signal to alternately switch the first transistor on and off in response to: the sensing of the second current; and a voltage of the output node.Type: GrantFiled: November 13, 2018Date of Patent: May 26, 2020Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Erick Omar Torres, Harish Venkataraman, Philomena C. Brady
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Patent number: 10270336Abstract: A circuit includes a current sensor to sense a switching current flowing at input side of a switching DC-DC converter. An output capacitor filters an output voltage at an output side of the switching DC-DC converter. A feed-forward circuit passes a portion of the sensed switching current to a feedback path on the output side of the switching DC-DC converter simulating a changing effective series resistance (ESR) of the output capacitor to facilitate operating stability in the switching DC-DC converter.Type: GrantFiled: May 17, 2018Date of Patent: April 23, 2019Assignee: TEXAS INSTRUMENTS INCORPORATEDInventor: Erick Omar Torres
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Publication number: 20190081564Abstract: An inductor conducts a first current, which is variable. A first transistor is coupled through the inductor to an output node. The first transistor alternately switches on and off in response to a voltage signal, so that the first current is: enhanced while the first transistor is switched on in response to the voltage signal; and limited while the first transistor is switched off in response to the voltage signal. A second transistor is coupled to the first transistor. The second transistor conducts a second current, which is variable. On/off switching of the second transistor is independent of the voltage signal. Control circuitry senses the second current and adjusts the voltage signal to alternately switch the first transistor on and off in response to: the sensing of the second current; and a voltage of the output node.Type: ApplicationFiled: November 13, 2018Publication date: March 14, 2019Inventors: Erick Omar Torres, Harish Venkataraman, Philomena C. Brady
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Patent number: 10128749Abstract: An inductor conducts a first current, which is variable. A first transistor is coupled through the inductor to an output node. The first transistor alternately switches on and off in response to a voltage signal, so that the first current is: enhanced while the first transistor is switched on in response to the voltage signal; and limited while the first transistor is switched off in response to the voltage signal. A second transistor is coupled to the first transistor. The second transistor conducts a second current, which is variable. On/off switching of the second transistor is independent of the voltage signal. Control circuitry senses the second current and adjusts the voltage signal to alternately switch the first transistor on and off in response to: the sensing of the second current; and a voltage of the output node.Type: GrantFiled: May 12, 2014Date of Patent: November 13, 2018Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Erick Omar Torres, Harish Venkataraman, Philomena C. Brady
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Publication number: 20180269785Abstract: A circuit includes a current sensor to sense a switching current flowing at input side of a switching DC-DC converter. An output capacitor filters an output voltage at an output side of the switching DC-DC converter. A feed-forward circuit passes a portion of the sensed switching current to a feedback path on the output side of the switching DC-DC converter simulating a changing effective series resistance (ESR) of the output capacitor to facilitate operating stability in the switching DC-DC converter.Type: ApplicationFiled: May 17, 2018Publication date: September 20, 2018Inventor: Erick Omar Torres
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Patent number: 9979287Abstract: A circuit includes a current sensor to sense a switching current flowing at input side of a switching DC-DC converter. An output capacitor filters an output voltage at an output side of the switching DC-DC converter. A feed-forward circuit passes a portion of the sensed switching current to a feedback path on the output side of the switching DC-DC converter simulating a changing effective series resistance (ESR) of the output capacitor to facilitate operating stability in the switching DC-DC converter.Type: GrantFiled: September 10, 2014Date of Patent: May 22, 2018Assignee: TEXAS INSTRUMENTS INCORPORATEDInventor: Erick Omar Torres
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Patent number: 9621304Abstract: A method of decoding a biphase mark coded (BMC) data stream. A BMC encoded signal (BMC signal) including a preamble and data payload is received at a receiver which includes a BMC decoder state machine (state machine). The preamble is processed using the state machine including measuring a total duration spanning at least three transitions to provide a ?2 UI duration measure, a calculated 0.75 UI duration value (0.75 UI duration value) is generated from the ?2 UI duration measure, and the 0.75 UI duration value is compared to a programmed UI range. Provided the 0.75 UI duration value is within the programmed UI range data, respective bits are extracted bit-by-bit from the data payload using the 0.75 UI duration value to obtain unencoded data.Type: GrantFiled: June 30, 2015Date of Patent: April 11, 2017Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Gary Franklin Chard, Erick Omar Torres, Karan Singh Jain
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Patent number: 9413232Abstract: A Charge Pump Buck Converter (CPBC) includes a BC including an inductor and a CP coupled in parallel. Control logic is coupled to a switch driver coupled to a power switch(es). Control circuitry includes a voltage sensor sensing Vout and a voltage level generator for generating a first voltage level coupled to the CP stage and a second voltage level coupled to a duty cycle/rate generator block providing an input to an under voltage (UV) monitor coupled between OUT and the control logic. The control circuitry disables the CP when Vout>a first Vout level and controls the BC to regulate to a second Vout level>the first Vout level. During handoff between CP and BC during power up if Vout drops below a UV threshold, the UV monitor block modifies an input applied to the control logic for increasing charging supplied to the inductor.Type: GrantFiled: June 9, 2015Date of Patent: August 9, 2016Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Erick Omar Torres, Byungchul Jang
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Patent number: 9385600Abstract: A switch-mode DC-DC voltage converter including a boost stage in the form of a charge pump and a buck stage. Control circuitry is provided that enables the operation of the buck stage while the charge pump stage is also enabled, followed by disabling of the charge pump stage as the input voltage and output voltage increase. The buck converter stage is constructed so that it regulates the output voltage at a voltage above that which disables the charge pump stage. Conduction losses in the main current path, due to the necessity of a power FET or other switching device, are avoided.Type: GrantFiled: November 22, 2013Date of Patent: July 5, 2016Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Erick Omar Torres, Harish Venkataraman, Byungchul Jang
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Publication number: 20160072385Abstract: A circuit includes a current sensor to sense a switching current flowing at input side of a switching DC-DC converter. An output capacitor filters an output voltage at an output side of the switching DC-DC converter. A feed-forward circuit passes a portion of the sensed switching current to a feedback path on the output side of the switching DC-DC converter simulating a changing effective series resistance (ESR) of the output capacitor to facilitate operating stability in the switching DC-DC converter.Type: ApplicationFiled: September 10, 2014Publication date: March 10, 2016Inventor: Erick Omar TORRES
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Publication number: 20150381317Abstract: A method of decoding a biphase mark coded (BMC) data stream. A BMC encoded signal (BMC signal) including a preamble and data payload is received at a receiver which includes a BMC decoder state machine (state machine). The preamble is processed using the state machine including measuring a total duration spanning at least three transitions to provide a ?2 UI duration measure, a calculated 0.75 UI duration value (0.75 UI duration value) is generated from the ?2 UI duration measure, and the 0.75 UI duration value is compared to a programmed UI range. Provided the 0.75 UI duration value is within the programmed UI range data, respective bits are extracted bit-by-bit from the data payload using the 0.75 UI duration value to obtain unencoded data.Type: ApplicationFiled: June 30, 2015Publication date: December 31, 2015Inventors: GARY FRANKLIN CHARD, ERICK OMAR TORRES, KARAN SINGH JAIN
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Publication number: 20150381035Abstract: A Charge Pump Buck Converter (CPBC) includes a BC including an inductor and a CP coupled in parallel. Control logic is coupled to a switch driver coupled to a power switch(es). Control circuitry includes a voltage sensor sensing Vout and a voltage level generator for generating a first voltage level coupled to the CP stage and a second voltage level coupled to a duty cycle/rate generator block providing an input to an under voltage (UV) monitor coupled between OUT and the control logic. The control circuitry disables the CP when Vout>a first Vout level and controls the BC to regulate to a second Vout level>the first Vout level. During handoff between CP and BC during power up if Vout drops below a UV threshold, the UV monitor block modifies an input applied to the control logic for increasing charging supplied to the inductor.Type: ApplicationFiled: June 9, 2015Publication date: December 31, 2015Inventors: ERICK OMAR TORRES, BYUNGCHUL JANG
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Publication number: 20150326121Abstract: An inductor conducts a first current, which is variable. A first transistor is coupled through the inductor to an output node. The first transistor alternately switches on and off in response to a voltage signal, so that the first current is: enhanced while the first transistor is switched on in response to the voltage signal; and limited while the first transistor is switched off in response to the voltage signal. A second transistor is coupled to the first transistor. The second transistor conducts a second current, which is variable. On/off switching of the second transistor is independent of the voltage signal. Control circuitry senses the second current and adjusts the voltage signal to alternately switch the first transistor on and off in response to: the sensing of the second current; and a voltage of the output node.Type: ApplicationFiled: May 12, 2014Publication date: November 12, 2015Inventors: Erick Omar Torres, Harish Venkataraman, Philomena C. Brady
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Publication number: 20150145497Abstract: A switch-mode DC-DC voltage converter including a boost stage in the form of a charge pump and a buck stage. Control circuitry is provided that enables the operation of the buck stage while the charge pump stage is also enabled, followed by disabling of the charge pump stage as the input voltage and output voltage increase. The buck converter stage is constructed so that it regulates the output voltage at a voltage above that which disables the charge pump stage. Conduction losses in the main current path, due to the necessity of a power FET or other switching device, are avoided.Type: ApplicationFiled: November 22, 2013Publication date: May 28, 2015Applicant: Texas Instruments IncorporatedInventors: Erick Omar Torres, Harish Venkataraman, Byungchul Jang