公开(公告)号：US09866113B1

公开(公告)日：2018-01-09

申请号：US15379746

申请日：2016-12-15

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Rida Shawky Assaad ,  David Wayne Evans

IPC: H02M3/07 ,  H02M1/00

CPC classification number: H02M3/07 ,  H02M3/158 ,  H02M2001/0009 ,  H02M2003/078

Abstract: Methods and apparatus for flying capacitor balancing in multilevel converters are disclosed. Example flying capacitor balancing circuitry can include voltage difference sense and control circuitry and duty cycle timing adjustment circuitry. The voltage difference sense and control circuitry can generate a compensation control signal for the duty cycle timing adjustment circuitry.

公开(公告)号：US09210748B2

公开(公告)日：2015-12-08

申请号：US14085765

申请日：2013-11-20

Applicant: Texas Instruments Incorporated

Inventor： David Wayne Evans ,  Kevin Scoones ,  James Larry Krug ,  Pradeep Katikaneni

IPC: H05B33/08

CPC classification number: H05B33/0815 ,  H05B33/0827 ,  Y10T307/406

Abstract: Systems and methods of driving multiple outputs are provided in which a single inductor may be used to drive multiple output such as independent strings of LEDs or white LEDs (WLEDs). In an example embodiment, a boost DC to DC converter may be used with a single inductor to drive multiple outputs. In an example embodiment, the error voltage of each of the multiple outputs is sampled during each cycle of the DC to DC converter and the largest error voltage is determined for that cycle. Power from the DC to DC converter is then supplied to that output during that cycle.

Abstract translation: 提供了驱动多个输出的系统和方法，其中可以使用单个电感器来驱动多个输出，例如独立的LED串或白色LED（WLED）。 在示例性实施例中，升压DC-DC转换器可以与单个电感器一起用于驱动多个输出。 在一个示例实施例中，在DC-DC转换器的每个周期期间对多个输出中的每一个的误差电压进行采样，并确定该周期的最大误差电压。 在该周期期间，从DC到DC转换器的电力被提供给该输出。

公开(公告)号：US20150137700A1

公开(公告)日：2015-05-21

申请号：US14085765

申请日：2013-11-20

Applicant: Texas Instruments Incorporated

Inventor： David Wayne Evans ,  Kevin Scoones ,  James Larry Krug ,  Pradeep Katikaneni

IPC: H05B33/08

CPC classification number: H05B33/0815 ,  H05B33/0827 ,  Y10T307/406

Abstract: Systems and methods of driving multiple outputs are provided in which a single inductor may be used to drive multiple output such as independent strings of LEDs or white LEDs (WLEDs). In an example embodiment, a boost DC to DC converter may be used with a single inductor to drive multiple outputs. In an example embodiment, the error voltage of each of the multiple outputs is sampled during each cycle of the DC to DC converter and the largest error voltage is determined for that cycle. Power from the DC to DC converter is then supplied to that output during that cycle.

Abstract translation: 提供了驱动多个输出的系统和方法，其中可以使用单个电感器来驱动多个输出，例如独立的LED串或白色LED（WLED）。 在示例性实施例中，升压DC-DC转换器可以与单个电感器一起用于驱动多个输出。 在一个示例实施例中，在DC-DC转换器的每个周期期间对多个输出中的每一个的误差电压进行采样，并确定该周期的最大误差电压。 在该周期期间，从DC到DC转换器的电力被提供给该输出。