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公开(公告)号：US11916479B2
公开(公告)日：2024-02-27
申请号：US18082274
申请日：2022-12-15
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Zejing Wang , Zhujun Li , Songming Zhou , Yu Wang
CPC classification number: H02M3/157 , H02M1/08 , H02M3/158 , H02J7/007 , H02J2207/20
Abstract: A system includes: 1) a battery configured to provide an input voltage (VIN); 2) switching converter circuitry coupled to the battery, wherein the switching converter circuitry includes a power switch; 3) a load coupled to an output of the switching converter circuitry; and 4) a control circuit coupled to the power switch. The control circuit includes: 1) a switch driver circuit coupled to the power switch; 2) a summing comparator circuit configured to output a first control signal that indicates when to turn the power switch on; and 3) an analog on-time extension circuit configured to extend an on-time of the power switch by gating a second control signal with the first control signal, wherein the second control signal indicates when to turn the power switch off.
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公开(公告)号：US20230208293A1
公开(公告)日：2023-06-29
申请号：US18082274
申请日：2022-12-15
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Zejing Wang , Zhujun Li , Songming Zhou , Yu Wang
CPC classification number: H02M3/157 , H02M3/158 , H02M1/08 , H02J2207/20 , H02J7/007
Abstract: A system includes: 1) a battery configured to provide an input voltage (VIN); 2) switching converter circuitry coupled to the battery, wherein the switching converter circuitry includes a power switch; 3) a load coupled to an output of the switching converter circuitry; and 4) a control circuit coupled to the power switch. The control circuit includes: 1) a switch driver circuit coupled to the power switch; 2) a summing comparator circuit configured to output a first control signal that indicates when to turn the power switch on; and 3) an analog on-time extension circuit configured to extend an on-time of the power switch by gating a second control signal with the first control signal, wherein the second control signal indicates when to turn the power switch off.
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公开(公告)号：US12294298B2
公开(公告)日：2025-05-06
申请号：US18398802
申请日：2023-12-28
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Zejing Wang , Zhujun Li , Songming Zhou , Yu Wang
Abstract: A system includes: 1) a battery configured to provide an input voltage (VIN); 2) switching converter circuitry coupled to the battery, wherein the switching converter circuitry includes a power switch; 3) a load coupled to an output of the switching converter circuitry; and 4) a control circuit coupled to the power switch. The control circuit includes: 1) a switch driver circuit coupled to the power switch; 2) a summing comparator circuit configured to output a first control signal that indicates when to turn the power switch on; and 3) an analog on-time extension circuit configured to extend an on-time of the power switch by gating a second control signal with the first control signal, wherein the second control signal indicates when to turn the power switch off.
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Patent Agency Ranking
公开(公告)号：US11356020B2
公开(公告)日：2022-06-07
申请号：US16546869
申请日：2019-08-21
Applicant: Texas Instruments Incorporated
Inventor： Zhangyi Xie , Zhenglin Pu , Yu Wang
Abstract: A circuit comprising a frequency to voltage converter having an input configured to receive a signal and an output coupled to a first node and another frequency to voltage converter having an input configured to receive a reference clock and an output coupled to a second node. The circuit also comprises a voltage source coupled between the first node and a third node, a voltage source coupled between the second node and a fourth node, a switch coupled between the first node and the third node, and a switch coupled between the second and fourth nodes. The circuit further comprises a comparator having an input coupled to the second node, another input coupled to the third node, and an output, a logic circuit having an input coupled to the comparator output and an output, and a counter having an input coupled to the logic circuit output and an output.
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公开(公告)号：US20210313883A1
公开(公告)日：2021-10-07
申请号：US17010418
申请日：2020-09-02
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Zejing Wang , Zhujun Li , Songming Zhou , Yu Wang
Abstract: A system includes: 1) a battery configured to provide an input voltage (VIN); 2) switching converter circuitry coupled to the battery, wherein the switching converter circuitry includes a power switch; 3) a load coupled to an output of the switching converter circuitry; and 4) a control circuit coupled to the power switch. The control circuit includes: 1) a switch driver circuit coupled to the power switch; 2) a summing comparator circuit configured to output a first control signal that indicates when to turn the power switch on; and 3) an analog on-time extension circuit configured to extend an on-time of the power switch by gating a second control signal with the first control signal, wherein the second control signal indicates when to turn the power switch off.
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公开(公告)号：US11557969B2
公开(公告)日：2023-01-17
申请号：US17010418
申请日：2020-09-02
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Zejing Wang , Zhujun Li , Songming Zhou , Yu Wang
Abstract: A system includes: 1) a battery configured to provide an input voltage (VIN); 2) switching converter circuitry coupled to the battery, wherein the switching converter circuitry includes a power switch; 3) a load coupled to an output of the switching converter circuitry; and 4) a control circuit coupled to the power switch. The control circuit includes: 1) a switch driver circuit coupled to the power switch; 2) a summing comparator circuit configured to output a first control signal that indicates when to turn the power switch on; and 3) an analog on-time extension circuit configured to extend an on-time of the power switch by gating a second control signal with the first control signal, wherein the second control signal indicates when to turn the power switch off.
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公开(公告)号：US10432092B2
公开(公告)日：2019-10-01
申请号：US16032718
申请日：2018-07-11
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Zhangyi Xie , Zhenglin Pu , Yu Wang
Abstract: A controller is configured to perform self-calibration to maintain approximately a desired switching frequency of a power converter. The self-calibration performed by the controller at least partially mitigates detrimental effects associated with variation in an actual switching frequency of the power converter from a designed switching frequency. The controller maintains approximately the desired switching frequency, in one example, in view of a delay inherent in the control by the controller of the power converter.
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公开(公告)号：US20240128867A1
公开(公告)日：2024-04-18
申请号：US18398802
申请日：2023-12-28
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Zejing Wang , Zhujun Li , Songming Zhou , Yu Wang
CPC classification number: H02M3/157 , H02M1/08 , H02M3/158 , H02J7/007 , H02J2207/20
Abstract: A system includes: 1) a battery configured to provide an input voltage (VIN); 2) switching converter circuitry coupled to the battery, wherein the switching converter circuitry includes a power switch; 3) a load coupled to an output of the switching converter circuitry; and 4) a control circuit coupled to the power switch. The control circuit includes: 1) a switch driver circuit coupled to the power switch; 2) a summing comparator circuit configured to output a first control signal that indicates when to turn the power switch on; and 3) an analog on-time extension circuit configured to extend an on-time of the power switch by gating a second control signal with the first control signal, wherein the second control signal indicates when to turn the power switch off.
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