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    HYSTERETIC CONTROL FOR TRANSFORMER BASED POWER CONVERTERS
    1.
    发明申请
    HYSTERETIC CONTROL FOR TRANSFORMER BASED POWER CONVERTERS 审中-公开

    公开(公告)号：US20200251995A1

    公开(公告)日：2020-08-06

    申请号：US16857365

    申请日：2020-04-24

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Michael D. Seeman

    IPC: H02M3/335 ,  H02M3/158 ,  H02M1/08

    Abstract: A hysteretic controller coupled to a first inductor and a second inductor, the first inductor is coupled to a secondary side of a transformer, the second inductor is coupled to the secondary side of the transformer and the hysteretic controller includes: a hysteretic comparator including a first input, a second input, and an output, the first input configured to receive a sensed current from the first inductor and the second inductor, the second input configured to receive a differential voltage representing a potential difference between an output voltage of a power converter and a reference voltage; a pulse sequencer coupled to the output of the hysteretic comparator; and a dead-time generation circuit configured to provide a first on-time signal to a first switch coupled to a primary side of the transformer and a second on-time signal to a second switch coupled to the secondary side of the transformer, the first and second on-time signals based on a pulse signal received from the pulse sequencer.

    Hysteretic control for transformer based power converters
    2.
    发明授权
    Hysteretic control for transformer based power converters 有权

    公开(公告)号：US10892686B2

    公开(公告)日：2021-01-12

    申请号：US16857365

    申请日：2020-04-24

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Michael D. Seeman

    IPC: H02M3/335 ,  H02M3/158 ,  H02M1/08 ,  H02M1/00

    Abstract: A hysteretic controller coupled to a first inductor and a second inductor, the first inductor is coupled to a secondary side of a transformer, the second inductor is coupled to the secondary side of the transformer and the hysteretic controller includes: a hysteretic comparator including a first input, a second input, and an output, the first input configured to receive a sensed current from the first inductor and the second inductor, the second input configured to receive a differential voltage representing a potential difference between an output voltage of a power converter and a reference voltage; a pulse sequencer coupled to the output of the hysteretic comparator; and a dead-time generation circuit configured to provide a first on-time signal to a first switch coupled to a primary side of the transformer and a second on-time signal to a second switch coupled to the secondary side of the transformer, the first and second on-time signals based on a pulse signal received from the pulse sequencer.

    Hysteretic control for transformer based power converters
    3.
    发明授权
    Hysteretic control for transformer based power converters 审中-公开

    公开(公告)号：US10673339B2

    公开(公告)日：2020-06-02

    申请号：US15073964

    申请日：2016-03-18

    Applicant: Texas Instruments Incorporated

    Inventor： Michael D. Seeman

    IPC: H02M3/335 ,  H02M3/158 ,  H02M1/08 ,  H02M1/00

    Abstract: Hysteretic control for power converters. In an example arrangement, an apparatus includes a converter for converting an input voltage to an output voltage including a transformer; at least one primary side driver switch coupled to supply current from an input voltage terminal to the primary side of the transformer; at least one inductor coupled between the secondary side of the transformer and the output voltage terminal; at least one secondary side switch coupled between the inductor and a ground potential; and a hysteretic controller coupled to supply a first on-time signal to the at least one primary side switch and a second on-time signal to the at least one secondary side switch, the hysteretic controller configured for sensing the output voltage and having at least one current input coupled for sensing current flowing in the inductor and generating primary side driver switch on-time pulses to control the output voltage.

    High voltage device with multi-electrode control
    4.
    发明授权
    High voltage device with multi-electrode control 有权

    公开(公告)号：US10340252B2

    公开(公告)日：2019-07-02

    申请号：US15947227

    申请日：2018-04-06

    Applicant: Texas Instruments Incorporated

    Inventor： Sandeep R. Bahl ,  Michael D. Seeman

    IPC: H01L29/66 ,  H01L23/00 ,  H01L27/085 ,  H01L29/40 ,  H01L29/778 ,  H01L21/8258 ,  H01L27/088 ,  H01L25/065 ,  H01L29/78 ,  H01L29/20

    Abstract: A high-voltage transistor (HVT) structure adapts a low-voltage transistor (LUT) to high-voltage environments. The HVT structure includes a drain node, a source node, a control gate, and a field electrode. The drain node and the source node define a conductive channel, in which mobilized charges are regulated by the control gate. While being isolated from the control gate, the field electrode is configured to spread the mobilized charges in response to a field voltage. The field electrode is structured and routed to prevent charge sharing with any one of the drain node, source node, or control gate. Advantageously, the isolated field electrode minimizes the capacitance of the control gate as well as the drain and source nodes, such that the HVT can switch with less power loss and a more robust performance in a high-voltage environment.

    Hysteretic Control for Transformer Based Power Converters
    9.
    发明申请
    Hysteretic Control for Transformer Based Power Converters 审中-公开
    基于变压器的电力变换器的滞回控制

    公开(公告)号：US20170025961A1

    公开(公告)日：2017-01-26

    申请号：US15073964

    申请日：2016-03-18

    Applicant: Texas Instruments Incorporated

    Inventor： Michael D. Seeman

    IPC: H02M3/335 ,  H02M1/08

    CPC classification number: H02M3/33546 ,  H02M1/08 ,  H02M3/1584 ,  H02M3/33507 ,  H02M3/33592 ,  H02M2001/0009 ,  Y02B70/1475

    Abstract: Hysteretic control for power converters. In an example arrangement, an apparatus includes a converter for converting an input voltage to an output voltage including a transformer; at least one primary side driver switch coupled to supply current from an input voltage terminal to the primary side of the transformer; at least one inductor coupled between the secondary side of the transformer and the output voltage terminal; at least one secondary side switch coupled between the inductor and a ground potential; and a hysteretic controller coupled to supply a first on-time signal to the at least one primary side switch and a second on-time signal to the at least one secondary side switch, the hysteretic controller configured for sensing the output voltage and having at least one current input coupled for sensing current flowing in the inductor and generating primary side driver switch on-time pulses to control the output voltage.

    Abstract translation: 电源转换器的迟滞控制。 在一个示例性装置中，一种装置包括：转换器，用于将输入电压转换成包括变压器的输出电压; 至少一个初级侧驱动器开关，被耦合以将电流从输入电压端子提供给变压器的初级侧; 耦合在变压器的次级侧和输出电压端子之间的至少一个电感器; 耦合在电感器和地电位之间的至少一个次级侧开关; 以及滞后控制器，其被耦合以向所述至少一个初级侧开关提供第一接通时间信号，以及向所述至少一个次级侧开关提供第二接通时间信号，所述滞后控制器被配置用于感测所述输出电压并且至少具有 一个电流输入耦合用于感测在电感器中流动的电流并产生初级侧驱动器开关导通时间脉冲以控制输出电压。

    HIGH VOLTAGE DEVICE WITH MULTI-ELECTRODE CONTROL
    10.
    发明申请
    HIGH VOLTAGE DEVICE WITH MULTI-ELECTRODE CONTROL 有权
    具有多电极控制的高电压装置

    公开(公告)号：US20160380089A1

    公开(公告)日：2016-12-29

    申请号：US14747169

    申请日：2015-06-23

    Applicant: Texas Instruments Incorporated

    Inventor： Sandeep R. Bahl ,  Michael D. Seeman

    IPC: H01L29/778 ,  H01L23/00 ,  H01L29/40 ,  H01L29/205 ,  H01L27/085 ,  H01L29/78

    CPC classification number: H01L24/97 ,  H01L21/8258 ,  H01L24/48 ,  H01L27/085 ,  H01L27/088 ,  H01L29/2003 ,  H01L29/404 ,  H01L29/7786 ,  H01L29/78 ,  H01L2224/48137 ,  H01L2924/00014 ,  H01L2224/45099 ,  H01L2224/85399 ,  H01L2224/05599

    Abstract: A high-voltage transistor (HVT) structure adapts a low-voltage transistor (LVT) to high-voltage environments. The HVT structure includes a drain node, a source node, a control gate, and a field electrode. The drain node and the source node define a conductive channel, in which mobilized charges are regulated by the control gate. While being isolated from the control gate, the field electrode is configured to spread the mobilized charges in response to a field voltage. The field electrode is structured and routed to prevent charge sharing with any one of the drain node, source node, or control gate. Advantageously, the isolated field electrode minimizes the capacitance of the control gate as well as the drain and source nodes, such that the HVT can switch with less power loss and a more robust performance in a high-voltage environment.

    Abstract translation: 高压晶体管（HVT）结构使低压晶体管（LVT）适应于高压环境。 HVT结构包括漏极节点，源节点，控制栅极和场电极。 漏极节点和源极节点定义了导电通道，其中动员的电荷由控制栅极调节。 当与控制栅极隔离时，场电极被配置为响应于场电压来扩展动员的电荷。 场电极被构造和布线以防止与漏极节点，源极节点或控制栅极中的任何一个的电荷共享。 有利地，隔离场电极使控制栅极以及漏极和源极节点的电容最小化，使得HVT可以在较高电压环境中以更少的功率损耗和更稳定的性能来切换。

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