公开(公告)号：US07843177B2

公开(公告)日：2010-11-30

申请号：US11930177

申请日：2007-10-31

申请人： Hsin-Hsin Ho ,  Ke-Horng Chen ,  Tzong-Honge Shieh

发明人： Hsin-Hsin Ho ,  Ke-Horng Chen ,  Tzong-Honge Shieh

IPC分类号： G05F1/652

CPC分类号： H02M3/1582

摘要： A high efficiency control circuit for operating a switching regulator is provided. The switching regulator can regulate an output voltage no matter the input voltage is higher, lower, or close to the output voltage. The switching regulator has first, second, third and fourth switches. The control circuit can operate the switching regulator in buck mode, boost mode, or buck-boost mode. In a buck-boost mode, the control logic drives the four switches in an efficiency sequence for reducing energy consumption during the switch transition, on the other side, resistive loss owing to the energy transfer phase is also minimized. Furthermore, the invention is capable of control duty cycle limitation to fit the consideration of the linearity of the converter.

摘要翻译： 提供了一种用于操作开关调节器的高效率控制电路。 开关稳压器可以调节输出电压，无论输入电压是高，低还是接近输出电压。 开关调节器具有第一，第二，第三和第四开关。 控制电路可以在降压模式，升压模式或降压 - 升压模式下操作开关稳压器。 在降压 - 升压模式下，控制逻辑以效率序列驱动四个开关，以减少开关转换期间的能量消耗，另一方面，由于能量转移相位的电阻损耗也被最小化。 此外，本发明能够控制占空比限制以适应转换器线性度的考虑。

公开(公告)号：US20090108823A1

公开(公告)日：2009-04-30

申请号：US11930177

申请日：2007-10-31

申请人： Hsin-Hsin Ho ,  Ke-Horng Chen ,  Tzong-Honge Shieh

发明人： Hsin-Hsin Ho ,  Ke-Horng Chen ,  Tzong-Honge Shieh

IPC分类号： G05F1/10

CPC分类号： H02M3/1582

摘要： A high efficiency control circuit for operating a switching regulator is provided. The switching regulator can regulate an output voltage no matter the input voltage is higher, lower, or close to the output voltage. The switching regulator has first, second, third and fourth switches. The control circuit can operate the switching regulator in buck mode, boost mode, or buck-boost mode. In a buck-boost mode, the control logic drives the four switches in an efficiency sequence for reducing energy consumption during the switch transition, on the other side, resistive loss owing to the energy transfer phase is also minimized. Furthermore, the invention is capable of control duty cycle limitation to fit the consideration of the linearity of the converter.

摘要翻译： 提供了一种用于操作开关调节器的高效率控制电路。 开关稳压器可以调节输出电压，无论输入电压是高，低还是接近输出电压。 开关调节器具有第一，第二，第三和第四开关。 控制电路可以在降压模式，升压模式或降压 - 升压模式下操作开关稳压器。 在降压 - 升压模式下，控制逻辑以效率序列驱动四个开关，以减少开关转换期间的能量消耗，另一方面，由于能量转移相位的电阻损耗也被最小化。 此外，本发明能够控制占空比限制以适应转换器线性度的考虑。

公开(公告)号：US08816788B2

公开(公告)日：2014-08-26

申请号：US13093864

申请日：2011-04-26

申请人： Tzong-Honge Shieh

发明人： Tzong-Honge Shieh

IPC分类号： H03K3/0231 ,  H03K4/501 ,  H03K3/84 ,  G06F1/08

CPC分类号： H03K3/84 ,  G06F1/08 ,  H03K3/0231 ,  H03K4/501

摘要： A frequency generator with frequency jitter is disclosed. The frequency generator comprises a capacitor, a comparing unit, a charging and discharging unit, a delay unit, and a charging and discharging switch unit. The comparing unit is coupled to the capacitor and generates a charging and discharging control signal according to a voltage of the capacitor. The charging and discharging unit is coupled to the capacitor. The delay unit is coupled to the comparing unit and receives a delay signal. The delay unit delays the charging and discharging control signal according to the delay signal to generate a charging and discharging delay signal. The charging and discharging switch unit is coupled to the charging and discharging unit and the delay unit, and charges or discharges the capacitor according to the charging and discharging delay signal.

摘要翻译： 公开了一种具有频率抖动的频率发生器。 频率发生器包括电容器，比较单元，充放电单元，延迟单元和充放电开关单元。 比较单元耦合到电容器，并根据电容器的电压产生充放电控制信号。 充电和放电单元耦合到电容器。 延迟单元耦合到比较单元并接收延迟信号。 延迟单元根据延迟信号延迟充电和放电控制信号以产生充电和放电延迟信号。 充放电开关单元耦合到充放电单元和延迟单元，并根据充电和放电延迟信号对电容器进行充电或放电。

公开(公告)号：US20120081082A1

公开(公告)日：2012-04-05

申请号：US13093864

申请日：2011-04-26

申请人： Tzong-Honge Shieh

发明人： Tzong-Honge Shieh

IPC分类号： H02J7/00

CPC分类号： H03K3/84 ,  G06F1/08 ,  H03K3/0231 ,  H03K4/501

摘要： A frequency generator with frequency jitter is disclosed. The frequency generator comprises a capacitor, a comparing unit, a charging and discharging unit, a delay unit, and a charging and discharging switch unit. The comparing unit is coupled to the capacitor and generates a charging and discharging control signal according to a voltage of the capacitor. The charging and discharging unit is coupled to the capacitor. The delay unit is coupled to the comparing unit and receives a delay signal. The delay unit delays the charging and discharging control signal according to the delay signal to generate a charging and discharging delay signal. The charging and discharging switch unit is coupled to the charging and discharging unit and the delay unit, and charges or discharges the capacitor according to the charging and discharging delay signal.

摘要翻译： 公开了一种具有频率抖动的频率发生器。 频率发生器包括电容器，比较单元，充放电单元，延迟单元和充放电开关单元。 比较单元耦合到电容器，并根据电容器的电压产生充放电控制信号。 充电和放电单元耦合到电容器。 延迟单元耦合到比较单元并接收延迟信号。 延迟单元根据延迟信号延迟充电和放电控制信号以产生充电和放电延迟信号。 充放电开关单元耦合到充放电单元和延迟单元，并根据充电和放电延迟信号对电容器进行充电或放电。