公开(公告)号：US20190140541A1

公开(公告)日：2019-05-09

申请号：US16241612

申请日：2019-01-07

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Thomas Matthew LaBella ,  Michael G. Amaro ,  Jeffrey Anthony Morroni

IPC: H02M3/158 ,  H02M1/08

CPC classification number: H02M3/158 ,  H02M1/08 ,  H02M2001/0009 ,  H02M2001/0032 ,  H02M2001/0058 ,  Y02B70/1491 ,  Y02B70/16

Abstract: Timing circuitry causes: a first closed signal on a first switch control output before a signal on a second switch control output changes from a second closed signal to a first open signal; the first switch control output to provide a second open signal after a first selected time after the second switch control output changes from the second closed signal to the first open signal; and a third switch control output to provide a third closed signal a second selected time after the first switch control output changes from the first closed signal to a third open signal. A beginning of the first closed signal to a beginning of the first open signal is based on a later of: a current through a switch connected to the second switch control output exceeding a threshold current; and a clocked time after the beginning of the first closed signal.

公开(公告)号：US20190058397A1

公开(公告)日：2019-02-21

申请号：US15858626

申请日：2017-12-29

Applicant: Texas Instruments Incorporated

Inventor： Orlando Lazaro ,  Kevin Scoones ,  Alvaro Aguilar ,  Jeffrey Anthony Morroni ,  Reza Sharifi

IPC: H02M3/145 ,  H02M1/14 ,  H03K7/08

Abstract: In described examples of methods and control circuitry to control a multi-level power conversion system, the control circuitry generates PWM signals having a duty cycle to control an output signal. The duty cycle is adjustable in different switching cycles. Each switching cycle includes a respective first sub-cycle with a first sub-cycle duration and a respective second sub-cycle with a second sub-cycle duration. The control circuitry controls a given switching cycle's first and second sub-cycle durations to control a voltage across a capacitor of the power conversion system while maintaining the given switching cycle's duty cycle.

公开(公告)号：US10069420B2

公开(公告)日：2018-09-04

申请号：US15599553

申请日：2017-05-19

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Jeffrey Anthony Morroni

IPC: H02M3/158

Abstract: Example embodiments of the systems and methods of non-invasive continuous adaptive tuning of digitally controlled switched mode power supply based on measured dynamic response disclosed herein rely on time domain measurements for the tuning rather than on frequency response to automatically tune the system for stability and good dynamic performance. In particular, an algorithm directly measures overshoot and settling time to transients. Using this information, the algorithm minimizes both overshoot/undershoot and settling time by adjusting the parameters of a digital compensator. Since time domain measurements are directly used, the implementation does not require an additional perturbation in the system that otherwise would be necessary.

公开(公告)号：US09871456B2

公开(公告)日：2018-01-16

申请号：US14791322

申请日：2015-07-03

Applicant: Texas Instruments Incorporated

Inventor： Jeffrey Anthony Morroni

IPC: H02M3/335 ,  H02M3/337 ,  H02M3/156

CPC classification number: H02M3/33569 ,  H02M3/33592 ,  H02M3/337 ,  H02M2003/1566 ,  Y02B70/1475

Abstract: A voltage conversion device includes a transformer and at least one transistor. The transformer has a primary side and a secondary side, the secondary side being couplable to a load. The output voltage of the voltage conversion device is coupled across the load. The at least one transistor is coupled to the primary side of the transformer and regulates the output voltage of the voltage conversion device. The output voltage is partially a function of the duty cycle of the at least one transistor. The switching frequency of the at least one transistor is decreased in response to a transient increase in load current.

公开(公告)号：US20170149335A1

公开(公告)日：2017-05-25

申请号：US14947495

申请日：2015-11-20

Applicant: Texas Instruments Incorporated

Inventor： Jeffrey Anthony Morroni

IPC: H02M3/158

CPC classification number: H02M3/158 ,  H02M1/36 ,  H02M3/156 ,  H02M2003/1566

Abstract: Example embodiments of the systems and methods of non-invasive continuous adaptive tuning of digitally controlled switched mode power supply based on measured dynamic response disclosed herein rely on time domain measurements for the tuning rather than on frequency response to automatically tune the system for stability and good dynamic performance. In particular, an algorithm directly measures overshoot and settling time to transients. Using this information, the algorithm minimizes both overshoot/undershoot and settling time by adjusting the parameters of a digital compensator. Since time domain measurements are directly used, the implementation does not require an additional perturbation in the system that otherwise would be necessary.

公开(公告)号：US20170005580A1

公开(公告)日：2017-01-05

申请号：US14791322

申请日：2015-07-03

Applicant: Texas Instruments Incorporated

Inventor： Jeffrey Anthony Morroni

IPC: H02M3/335

CPC classification number: H02M3/33569 ,  H02M3/33592 ,  H02M3/337 ,  H02M2003/1566 ,  Y02B70/1475

Abstract: A voltage conversion device includes a transformer and at least one transistor. The transformer has a primary side and a secondary side, the secondary side being couplable to a load. The output voltage of the voltage conversion device is coupled across the load. The at least one transistor is coupled to the primary side of the transformer and regulates the output voltage of the voltage conversion device. The output voltage is partially a function of the duty cycle of the at least one transistor. The switching frequency of the at least one transistor is decreased in response to a transient increase in load current.

Abstract translation: 电压转换装置包括变压器和至少一个晶体管。 变压器具有初级侧和次级侧，次级侧可耦合到负载。 电压转换装置的输出电压跨负载耦合。 至少一个晶体管耦合到变压器的初级侧并且调节电压转换装置的输出电压。 输出电压部分地是至少一个晶体管的占空比的函数。 响应于负载电流的瞬时增加，至少一个晶体管的开关频率降低。

公开(公告)号：US09473092B2

公开(公告)日：2016-10-18

申请号：US14587863

申请日：2014-12-31

Applicant: Texas Instruments Incorporated

Inventor： Dina Reda El-Damak ,  Rajarshi Mukhopadhyay ,  Jeffrey Anthony Morroni

IPC: H03F3/45

CPC classification number: H03F3/45645 ,  H03F3/3028 ,  H03F3/45206 ,  H03F3/45233 ,  H03F3/45273 ,  H03F3/45771 ,  H03F2203/45002 ,  H03F2203/45048 ,  H03F2203/45078 ,  H03F2203/45116

Abstract: An amplifier receives a differential signal and, in response, generates a first negative input current and a first positive input current. In a first operating mode, the amplifier receives a second differential signal, and, in response, generates a second negative input current and a second positive input current. In a second operating mode, the amplifier receives the second differential signal, and, in response, generates a third negative input current and a third positive input current. When the device is operating in the first operating mode, the first negative input current is summed with the second negative input current and the first positive input current is summed with the second positive input current. When the device is operating in the second operating mode, the first negative input current is summed with the third negative input current and the first positive input current is summed with the third positive input current.

Abstract translation: 放大器接收差分信号，作为响应，产生第一负输入电流和第一正输入电流。 在第一操作模式中，放大器接收第二差分信号，并且作为响应，产生第二负输入电流和第二正输入电流。 在第二操作模式中，放大器接收第二差分信号，并且作为响应，产生第三负输入电流和第三正输入电流。 当器件在第一工作模式下工作时，第一个负输入电流与第二个负输入电流相加，第一个正输入电流与第二个正输入电流相加。 当器件在第二工作模式下工作时，第一个负输入电流与第三个负输入电流相加，第一个正输入电流与第三个正输入电流相加。