公开(公告)号：US08525502B2

公开(公告)日：2013-09-03

申请号：US13039154

申请日：2011-03-02

申请人： Jason Weinstein ,  Zhenyu Zhao ,  Jingquan Chen

发明人： Jason Weinstein ,  Zhenyu Zhao ,  Jingquan Chen

IPC分类号： G05F1/00

CPC分类号： H02M3/156 ,  H02M1/44 ,  H02M2001/0032 ,  Y02B70/16

摘要： A digital pulse controller uses digital logic to send pulses to a high side and low side switches of a switch-mode power supply converter. The digital logic uses a pulse frequency mode which includes a frequency targeting mode and an ultrasonic mode. The frequency targeting mode dynamically adjusts the size of the pulses in order to achieve a switching frequency within a desired band. The ultrasonic mode is switched into when the frequency of the pulses are at or below a threshold and the time of the pulses reaches a minimum threshold.

摘要翻译： 数字脉冲控制器使用数字逻辑将脉冲发送到开关模式电源转换器的高侧和低侧开关。 数字逻辑使用包括频率瞄准模式和超声波模式的脉冲频率模式。 频率瞄准模式动态地调节脉冲的大小以便实现期望频带内的切换频率。 当脉冲的频率处于或低于阈值并且脉冲的时间达到最小阈值时，超声模式被切换。

公开(公告)号：US08362756B2

公开(公告)日：2013-01-29

申请号：US12974903

申请日：2010-12-21

申请人： Jason Weinstein ,  Zhenyu Zhao ,  Jingquan Chen

发明人： Jason Weinstein ,  Zhenyu Zhao ,  Jingquan Chen

IPC分类号： G05F1/40 ,  G05F1/575

CPC分类号： H02M3/07 ,  H02M3/157 ,  H02M3/1588 ,  Y02B70/1466

摘要： A controller produces high-side and low-side control signals. The high and low-side signals are used to switch high-side and low-side transistors in the power stage to control the voltage across the power stage output capacitor of the power stage. A boost feedback charge pump receives the low or high-side signal to increase the charge on a charge pump output capacitor. The controller is configured to send Pulse Frequency Modulation (PFM) high and low-side signals that control the voltage on the power stage output capacitor and charge the charge pump output capacitor. The controller is also configured to send boost feedback (BFB) high and low-side signals that charge the boost feedback capacitor, but are designed to not significantly change the charge on the power stage output capacitor.

摘要翻译： 控制器产生高端和低端控制信号。 高低侧信号用于切换功率级的高侧和低侧晶体管，以控制功率级功率级输出电容器两端的电压。 升压反馈电荷泵接收低电平或高边信号以增加电荷泵输出电容器上的电荷。 控制器配置为发送脉冲频率调制（PFM）高和低侧信号，控制功率级输出电容器的电压，并对电荷泵输出电容器充电。 控制器还配置为发送升压反馈（BFB）高压和低压信号，为升压反馈电容充电，但被设计为不会显着改变功率级输出电容器的电荷。

公开(公告)号：US20120153916A1

公开(公告)日：2012-06-21

申请号：US12974903

申请日：2010-12-21

申请人： Jason Weinstein ,  Zhenyu Zhao ,  Jingquan Chen

发明人： Jason Weinstein ,  Zhenyu Zhao ,  Jingquan Chen

IPC分类号： G05F1/618

CPC分类号： H02M3/07 ,  H02M3/157 ,  H02M3/1588 ,  Y02B70/1466

摘要： A controller produces high-side and low-side control signals. The high and low-side signals are used to switch high-side and low-side transistors in the power stage to control the voltage across the power stage output capacitor of the power stage. A boost feedback charge pump receives the low or high-side signal to increase the charge on a charge pump output capacitor. The controller is configured to send Pulse Frequency Modulation (PFM) high and low-side signals that control the voltage on the power stage output capacitor and charge the charge pump output capacitor. The controller is also configured to send boost feedback (BFB) high and low-side signals that charge the boost feedback capacitor, but are designed to not significantly change the charge on the power stage output capacitor.

摘要翻译： 控制器产生高端和低端控制信号。 高低侧信号用于切换功率级的高侧和低侧晶体管，以控制功率级功率级输出电容器两端的电压。 升压反馈电荷泵接收低电平或高边信号以增加电荷泵输出电容器上的电荷。 控制器配置为发送脉冲频率调制（PFM）高和低侧信号，控制功率级输出电容器的电压，并对电荷泵输出电容器充电。 控制器还配置为发送升压反馈（BFB）高压和低压信号，为升压反馈电容充电，但被设计为不会显着改变功率级输出电容器的电荷。