公开(公告)号：US09812960B2

公开(公告)日：2017-11-07

申请号：US14983227

申请日：2015-12-29

Applicant: Texas Instruments Incorporated

Inventor： Keith Edmund Kunz ,  Vipul Kumar Singhal ,  Rajat Chauhan ,  Per Torstein Røine ,  Danielle Griffith

IPC: G05F1/613 ,  H02M3/158 ,  H02M1/00

CPC classification number: H02M3/158 ,  H02M3/156 ,  H02M2001/0032 ,  H02M2003/1566 ,  Y02B70/16

Abstract: Methods and apparatus for DC-DC power controller with low standby current and fast transient response. In an example arrangement, an apparatus includes a voltage converter outputting a direct current output voltage, configured to increase the output voltage responsive to an enable control signal; at least one feedback comparator configured to output a first control signal, the feedback comparator being active responsive to an edge at a clock signal input; an adjustable frequency oscillator for outputting a first clock signal; and a fast transient detect circuit configured to output a second signal asynchronously upon detecting a rapid change greater than a voltage threshold in the output voltage; the voltage converter receiving the enable control signal when either the first clock signal is active, or the second signal is active and the output voltage is less than a reference voltage. Additional apparatus and methods are disclosed.

公开(公告)号：US20170187286A1

公开(公告)日：2017-06-29

申请号：US14983227

申请日：2015-12-29

Applicant: Texas Instruments Incorporated

Inventor： Keith Edmund Kunz ,  Vipul Kumar Singhal ,  Rajat Chauhan ,  Per Torstein Røine ,  Danielle Griffith

IPC: H02M3/158

CPC classification number: H02M3/158 ,  H02M3/156 ,  H02M2001/0032 ,  H02M2003/1566 ,  Y02B70/16

Abstract: Methods and apparatus for DC-DC power controller with low standby current and fast transient response. In an example arrangement, an apparatus includes a voltage converter outputting a direct current output voltage, configured to increase the output voltage responsive to an enable control signal; at least one feedback comparator configured to output a first control signal, the feedback comparator being active responsive to an edge at a clock signal input; an adjustable frequency oscillator for outputting a first clock signal; and a fast transient detect circuit configured to output a second signal asynchronously upon detecting a rapid change greater than a voltage threshold in the output voltage; the voltage converter receiving the enable control signal when either the first clock signal is active, or the second signal is active and the output voltage is less than a reference voltage. Additional apparatus and methods are disclosed.

公开(公告)号：US09692416B1

公开(公告)日：2017-06-27

申请号：US15075908

申请日：2016-03-21

Applicant: Texas Instruments Incorporated

Inventor： Vipul Kumar Singhal

IPC: H03K3/00 ,  H03K19/00 ,  H03K17/12

CPC classification number: H03K19/0016 ,  H03K19/0013

Abstract: A buffer that drives components during a standby mode includes a first combination of two standard voltage threshold (SVT) transistors and two high voltage threshold (HVT) transistors that generate a logic 1 signal at a first output. A second combination of two SVT transistors and two HVT transistors generates a logic 0 signal at a second output. A power supply operates the buffer, wherein the power supply generates a voltage less that the threshold voltages of the HVT transistors.