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1.发明申请Multi-phase switching regulator and driver circuit and control method thereof 审中-公开多相开关稳压器及其驱动电路及其控制方法公开(公告)号：US20120086418A1
公开(公告)日：2012-04-12
申请号：US12931189
申请日：2011-01-27
申请人： Chia-Jung Lee , Yuan-Huang Cheng , Ting-Hung Wang
发明人： Chia-Jung Lee , Yuan-Huang Cheng , Ting-Hung Wang
IPC分类号： G05F1/00
CPC分类号： H02M3/1584 , H02M1/36
摘要： The present invention discloses a multi-phase switching regulator, and a driver circuit and a control method thereof. The multi-phase switching regulator includes: at least two power stages each having at least one switching power transistor which switches to convert a common input voltage to a common output voltage according to PWM signals generated by corresponding PWM controllers, respectively; a feedback circuit, generating a feedback signal according to the output voltage; a current balance circuit, generating a current balance signal according to the currents of the power stages and a phase off signal to distribute current loading among the active power stages; and a soft shutdown control circuit, generating a soft shutdown control signal according to the phase off signal to gradually change the duty of a PWM signal corresponding to a power stage, so as to softly shut down the power stage to avoid a voltage undershoot.
摘要翻译： 本发明公开了一种多相开关调节器及其驱动电路及其控制方法。 多相开关调节器包括：至少两个功率级，每个功率级具有至少一个开关功率晶体管，其分别根据相应的PWM控制器产生的PWM信号来切换公共输入电压到公共输出电压; 反馈电路，根据输出电压产生反馈信号; 电流平衡电路，根据功率级的电流产生电流平衡信号和相位关闭信号，以在有功功率级之间分配电流负载; 和软关断控制电路，根据相位关闭信号产生软关断控制信号，逐渐改变对应于功率级的PWM信号的占空比，以便软抑制功率级以避免电压下冲。
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2.发明申请Multi-phase switching regulator and driver circuit and control method thereof 失效多相开关稳压器及其驱动电路及其控制方法公开(公告)号：US20120176105A1
公开(公告)日：2012-07-12
申请号：US13134035
申请日：2011-05-26
IPC分类号： G05F1/10
CPC分类号： H02M3/1584 , H02M2003/1586
摘要： The present invention discloses a multi-phase switching regulator, a driver circuit of a multi-phase switching regulator, and a control method of a multi-phase switching regulator. The multi-phase switching regulator includes: at least two power stages, switching power transistors in the power stages to convert an input voltage to an output voltage according to pulse width modulation (PWM) signals generated by corresponding PWM controllers respectively; and a current balance circuit, generating a current balance signal according to the current of the corresponding power stage and a phase adjustment signal to averagely distribute current over the active power stages. In the present invention, the gain of the current balance circuit is adjustable, to avoid or reduce output voltage overshoot and undershoot when the phase number changes, while the current balance function is still achieved in normal operation.
摘要翻译： 本发明公开了一种多相开关调节器，多相开关调节器的驱动电路以及多相开关调节器的控制方法。 多相开关稳压器包括：至少两个功率级，功率级中的开关功率晶体管，分别根据相应PWM控制器产生的脉冲宽度调制（PWM）信号将输入电压转换成输出电压; 以及电流平衡电路，根据相应功率级的电流产生电流平衡信号和相位调整信号，以平均分配有功功率级上的电流。 在本发明中，电流平衡电路的增益是可调节的，以避免或减少相位数变化时的输出电压过冲和下冲，同时在正常操作中仍然实现电流平衡功能。
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3.发明授权Multi-phase switching regulator and driver circuit and control method thereof 失效多相开关稳压器及其驱动电路及其控制方法公开(公告)号：US08643354B2
公开(公告)日：2014-02-04
申请号：US13134035
申请日：2011-05-26
IPC分类号： G05F1/40
CPC分类号： H02M3/1584 , H02M2003/1586
摘要： The present invention discloses a multi-phase switching regulator, a driver circuit of a multi-phase switching regulator, and a control method of a multi-phase switching regulator. The multi-phase switching regulator includes: at least two power stages, switching power transistors in the power stages to convert an input voltage to an output voltage according to pulse width modulation (PWM) signals generated by corresponding PWM controllers respectively; and a current balance circuit, generating a current balance signal according to the current of the corresponding power stage and a phase adjustment signal to averagely distribute current over the active power stages. In the present invention, the gain of the current balance circuit is adjustable, to avoid or reduce output voltage overshoot and undershoot when the phase number changes, while the current balance function is still achieved in normal operation.
摘要翻译： 本发明公开了一种多相开关调节器，多相开关调节器的驱动电路以及多相开关调节器的控制方法。 多相开关稳压器包括：至少两个功率级，功率级中的开关功率晶体管，分别根据相应PWM控制器产生的脉冲宽度调制（PWM）信号将输入电压转换成输出电压; 以及电流平衡电路，根据相应功率级的电流产生电流平衡信号和相位调整信号，以平均分配有功功率级上的电流。 在本发明中，电流平衡电路的增益是可调节的，以避免或减少相位数变化时的输出电压过冲和下冲，同时在正常操作中仍然实现电流平衡功能。
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公开(公告)号：US20050285573A1
公开(公告)日：2005-12-29
申请号：US11166133
申请日：2005-06-27
申请人： Yuan-Huang Cheng
发明人： Yuan-Huang Cheng
CPC分类号： H02J7/345
摘要： In a capacitor charger including a transformer to transform a primary coil voltage to a secondary coil voltage to charge a capacitor at an output through a charging node to approach a predetermined voltage, a voltage sense apparatus and method comprise sensing the voltage on the capacitor with a voltage divider to generate a feedback signal to stop charging the capacitor when the capacitor voltage is sensed to be equal to or higher than the predetermined voltage, and preventing an inverse current flowing from the capacitor to the charging node for no leakage occurred from the capacitor to the voltage sense apparatus.
摘要翻译： 在包括变压器的电容器充电器中，将初级线圈电压转换为次级线圈电压，以通过充电节点对输出端的电容器充电以接近预定电压，电压检测装置和方法包括：用电压感测装置和方法 当电容器电压被检测到等于或高于预定电压时，产生反馈信号以停止对电容器充电，并且防止从电容器到电容器到电容器到充电节点的反向电流从电容器发送到 电压检测装置。
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公开(公告)号：US07518888B2
公开(公告)日：2009-04-14
申请号：US11415223
申请日：2006-05-02
申请人： Kwan-Jen Chu , Chung-Lung Pai , Yuan-Huang Cheng , Jing-Meng Liu
发明人： Kwan-Jen Chu , Chung-Lung Pai , Yuan-Huang Cheng , Jing-Meng Liu
CPC分类号： H02M3/33507 , H02M2001/0009 , H02M2001/0038
摘要： In a fly-back voltage converter that includes a transformer to transform a primary current to a secondary current and a switch serially coupled to the primary winding to switch the primary current in response to a control signal, a detection signal is produced by comparing the secondary current with two threshold values after the primary current is switched off to trigger the next on-time cycle of the switch. Once the secondary current is detected to be greater than a first threshold value, it is determined that the secondary current has been switched on, and until the secondary current is detected to be lower than a second threshold value, it is determined that the secondary current is to be switched off. The hysteresis range of the threshold values prevents error detection of the secondary current.
摘要翻译： 在包括将初级电流转换为次级电流的变压器和串联耦合到初级绕组的开关以响应于控制信号切换初级电流的反激式电压转换器中，通过比较次级 在初级电流关闭之后，具有两个阈值的电流触发开关的下一个导通时间周期。 一旦检测到二次电流大于第一阈值，则确定次级电流已经接通，并且直到检测到次级电流低于第二阈值，确定次级电流 要关掉 阈值的滞后范围可防止次级电流的错误检测。
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公开(公告)号：US20070118311A1
公开(公告)日：2007-05-24
申请号：US11652112
申请日：2007-01-11
申请人： Yuan-Huang Cheng
发明人： Yuan-Huang Cheng
IPC分类号： G01R19/00
CPC分类号： H02J7/345
摘要： In a capacitor charger including a transformer to transform a primary coil voltage to a secondary coil voltage to charge a capacitor at an output through a charging node to approach a predetermined voltage, a voltage sense apparatus and method comprise sensing the voltage on the capacitor with a voltage divider to generate a feedback signal to stop charging the capacitor when the capacitor voltage is sensed to be equal to or higher than the predetermined voltage, and preventing an inverse current flowing from the capacitor to the charging node for no leakage occurred from the capacitor to the voltage sense apparatus.
摘要翻译： 在包括变压器的电容器充电器中，将初级线圈电压转换为次级线圈电压，以通过充电节点对输出端的电容器充电以接近预定电压，电压检测装置和方法包括：用电压感测装置和方法 当电容器电压被检测到等于或高于预定电压时，产生反馈信号以停止对电容器充电，并且防止从电容器到电容器到电容器到充电节点的反向电流从电容器发送到 电压检测装置。
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公开(公告)号：US20060250827A1
公开(公告)日：2006-11-09
申请号：US11415223
申请日：2006-05-02
申请人： Kwan-Jen Chu , Chung-Lung Pai , Yuan-Huang Cheng , Jing-Meng Liu
发明人： Kwan-Jen Chu , Chung-Lung Pai , Yuan-Huang Cheng , Jing-Meng Liu
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M2001/0009 , H02M2001/0038
摘要： In a fly-back voltage converter that includes a transformer to transform a primary current to a secondary current and a switch serially coupled to the primary winding to switch the primary current in response to a control signal, a detection signal is produced by comparing the secondary current with two threshold values after the primary current is switched off to trigger the next on-time cycle of the switch. Once the secondary current is detected to be greater than a first threshold value, it is determined that the secondary current has been switched on, and until the secondary current is detected to be lower than a second threshold value, it is determined that the secondary current is to be switched off. The hysteresis range of the threshold values prevents error detection of the secondary current.
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公开(公告)号：US20060002162A1
公开(公告)日：2006-01-05
申请号：US11167212
申请日：2005-06-28
申请人： Rong-Jie Tu , Yuan-Huang Cheng
发明人： Rong-Jie Tu , Yuan-Huang Cheng
IPC分类号： H02M5/20
摘要： A capacitor charger comprises an inductor connected between an input voltage and an output capacitor, a taper drawn from the inductor to separate the inductor to two segments, and a switch connected to the taper, and switches the switch to produce a current to charge the output capacitor to produce an output voltage thereon.
摘要翻译： 电容器充电器包括连接在输入电压和输出电容器之间的电感器，从电感器拉出的锥度以将电感器分离成两个部分，以及连接到锥度的开关，并且切换开关以产生电流以对输出进行充电 电容器以在其上产生输出电压。
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