公开(公告)号：US10340803B2

公开(公告)日：2019-07-02

申请号：US15135987

申请日：2016-04-22

Applicant: Texas Instruments Incorporated

Inventor： Neil Gibson ,  Michael Couleur ,  Antonio Priego ,  Stefan Herzer ,  Syed Wasif Mehdi

IPC: H02M3/158 ,  H02M1/00

Abstract: A DC-to-DC voltage converter includes a converter input for receiving a DC voltage. A first switch is coupled between the input and a first node. A second switch is coupled between the first node and a ground. An inductor is coupled between the first node and a converter output. A capacitor is coupled between the converter output and ground. An output voltage synthesizer is coupled to the converter input and the converter output for synthesizing the voltage at the first node and for generating a control signal for at least one of the first switch and the second switch in response to the voltages at the converter input and the converter output.

公开(公告)号：US10270346B2

公开(公告)日：2019-04-23

申请号：US15853494

申请日：2017-12-22

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Antonio Priego ,  Neil Gibson ,  Syed Wasif Mehdi

IPC: H02M3/158 ,  H02M3/156 ,  H02M1/00

Abstract: A multiphase power regulator includes a plurality of phases coupled in parallel to provide a load current as a combination of phase currents at an output voltage, each phase including at least one power transistor switched to provide a respective phase current based at least in part on a comparator output signal, and a current-sense low pass filter to sense the phase current. The regulator further includes a gm stage to generate the current set point voltage based at least in part on the output voltage, a comparator to compare a voltage from the current-sense low pass filters to the current set point voltage and a current set point adjustment circuit to provide an auxiliary control signal to decrease the current set point voltage responsive to a change in comparator output and then to increase the current set point voltage responsive to another change in comparator output.

公开(公告)号：US10243464B2

公开(公告)日：2019-03-26

申请号：US15854061

申请日：2017-12-26

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Syed Wasif Mehdi ,  Neil Gibson ,  Antonio Priego

IPC: H02M3/158 ,  G05F1/62 ,  H02M1/08 ,  H02J1/10 ,  H02M3/338 ,  H03K17/16 ,  H02M3/137

Abstract: A controller including a voltage synthesizer for a switching regulator includes a synthesizer input to be coupled to an input of the regulator. First and second replica switching transistors are connected at a first node. A resistor couples between the first node and a second node, and a capacitor couples between the second node and ground. A transconductance stage compares a voltage sampled onto the capacitor to the output voltage of the regulator and generates an output signal in response to the comparison. A first switch couples between first and second inputs of the transconductance stage. The first switch is turned on during each cycle of operation of the voltage synthesizer to reset the capacitor voltage to the output voltage of the regulator.