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公开(公告)号：US08901911B2
公开(公告)日：2014-12-02
申请号：US13420201
申请日：2012-03-14
申请人： Wei-Jhih Wen , Ting-Hung Wang , Chia-Jung Lee , Shang-Ying Chung
发明人： Wei-Jhih Wen , Ting-Hung Wang , Chia-Jung Lee , Shang-Ying Chung
CPC分类号： H02M3/156 , H02M2001/0022
摘要： A control circuit for a switching voltage regulator is disclosed, having a charging circuit, a discharging circuit, and a charging-discharging control circuit. The charging circuit generates a charging current according to the input voltage and the output voltage of the switching voltage regulator for charging a capacitor. The discharging circuit generates a discharging current according to the output voltage of the switching voltage regulator for discharging the capacitor. The charging-discharging control circuit configures the charging circuit, the discharging circuit, and the switching voltage regulator according to the voltage of the capacitor for providing a control signal to configure the switching voltage regulator.
摘要翻译： 公开了一种用于开关电压调节器的控制电路，其具有充电电路，放电电路和充放电控制电路。 充电电路根据用于对电容器充电的开关电压调节器的输入电压和输出电压产生充电电流。 放电电路根据用于放电电容器的开关电压调节器的输出电压产生放电电流。 充放电控制电路根据用于提供控制信号的电容器的电压来配置充电电路，放电电路和开关稳压器，以配置开关电压调节器。
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2.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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3.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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公开(公告)号：US08063617B2
公开(公告)日：2011-11-22
申请号：US12382017
申请日：2009-03-06
申请人： Ting-Hung Wang , Chia-Jung Lee , Liang-Pin Tai
发明人： Ting-Hung Wang , Chia-Jung Lee , Liang-Pin Tai
IPC分类号： G05F1/00
CPC分类号： H02M3/1584 , H02M2003/1566
摘要： A per-phase quick response generation circuit generates a quick response signal to determine a quick response pulse to be inserted into a pulse width modulation signal of the corresponding phase. The quick response pulse will force the upper power switch of the corresponding phase on to increase the current supply ability during load transition. A multi-phase voltage regulator with the quick response generation circuit can have different quick response pulse widths for the interleaved phases, so as to decrease the current imbalance period of the voltage regulator after load transition.
摘要翻译： 每相快速响应发生电路产生快速响应信号以确定要插入相应相位的脉宽调制信号的快速响应脉冲。 快速响应脉冲将强制相应相位的上电源开关增加负载转换期间的电流供应能力。 具有快速响应发生电路的多相电压调节器可以对交错相位具有不同的快速响应脉冲宽度，从而减小负载转换后电压调节器的电流不平衡周期。
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5.发明申请Current mode switching regulator and control circuit and control method thereof 审中-公开电流模式开关调节器及其控制电路及其控制方法公开(公告)号：US20120098514A1
公开(公告)日：2012-04-26
申请号：US13065571
申请日：2011-03-24
申请人： Ting-Hung Wang , Chia-Jung Lee
发明人： Ting-Hung Wang , Chia-Jung Lee
IPC分类号： G05F1/618
CPC分类号： H02M3/156
摘要： The present invention discloses a current mode switching regulator, a control circuit of a switching regulator, and a control method of a switching regulator. The switching regulator includes a power stage driven by a driver voltage outputted from a driver circuit. And the power stage switches at least one power transistor to convert an input voltage to an output voltage. The present invention generates an error signal according to a feedback signal related to the output voltage, and adjusts an operation voltage supplied to the driver circuit according to the error signal.
摘要翻译： 本发明公开了一种电流模式开关调节器，开关调节器的控制电路和开关调节器的控制方法。 开关调节器包括由驱动器电路输出的驱动器电压驱动的功率级。 并且功率级切换至少一个功率晶体管以将输入电压转换为输出电压。 本发明根据与输出电压有关的反馈信号产生误差信号，根据误差信号调整提供给驱动电路的工作电压。
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6.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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公开(公告)号：US20120062189A1
公开(公告)日：2012-03-15
申请号：US12928539
申请日：2010-12-14
申请人： Ting-Hung Wang , Chia-Jung Lee
发明人： Ting-Hung Wang , Chia-Jung Lee
IPC分类号： G05F1/10
CPC分类号： H02M3/156 , H02M2001/0009
摘要： The present invention discloses a switching regulator, and a control circuit and method for controlling a switching regulator. The switching regulator includes a power stage driven by a driver voltage outputted from a driver circuit. The present invention detects an input current to generate an input current detection signal, and adjusts an operation voltage supplied to the driver circuit according to the input current detection signal.
摘要翻译： 本发明公开了一种开关调节器，以及用于控制开关调节器的控制电路和方法。 开关调节器包括由驱动器电路输出的驱动器电压驱动的功率级。 本发明检测输入电流以产生输入电流检测信号，并根据输入电流检测信号调整提供给驱动电路的工作电压。
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公开(公告)号：US20090230932A1
公开(公告)日：2009-09-17
申请号：US12382017
申请日：2009-03-06
申请人： Ting-Hung Wang , Chia-Jung Lee , Liang-Pin Tai
发明人： Ting-Hung Wang , Chia-Jung Lee , Liang-Pin Tai
IPC分类号： G05F1/10
CPC分类号： H02M3/1584 , H02M2003/1566
摘要： A per-phase quick response generation circuit generates a quick response signal to determine a quick response pulse to be inserted into a pulse width modulation signal of the corresponding phase. The quick response pulse will force the upper power switch of the corresponding phase on to increase the current supply ability during load transition. A multi-phase voltage regulator with the quick response generation circuit can have different quick response pulse widths for the interleaved phases, so as to decrease the current imbalance period of the voltage regulator after load transition.
摘要翻译： 每相快速响应发生电路产生快速响应信号以确定要插入相应相位的脉宽调制信号的快速响应脉冲。 快速响应脉冲将强制相应相位的上电源开关增加负载转换期间的电流供应能力。 具有快速响应发生电路的多相电压调节器可以对交错相位具有不同的快速响应脉冲宽度，从而减小负载转换后电压调节器的电流不平衡周期。
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公开(公告)号：US20090261450A1
公开(公告)日：2009-10-22
申请号：US12106759
申请日：2008-04-21
申请人： Hsin-Li Cheng , Chia-Jung Lee , Chin-Shan Hou , Wei-Ming Chen
发明人： Hsin-Li Cheng , Chia-Jung Lee , Chin-Shan Hou , Wei-Ming Chen
IPC分类号： H01L23/525
CPC分类号： H01L23/5256 , H01L2924/0002 , H01L2924/3011 , H01L2924/00
摘要： An electrical fuse and a process of programming the same are presented. An electrical fuse comprises a lower level silicide layer on a non-doped or lightly-doped polysilicon layer, an upper level conductive layer, and a tungsten contact coupled between the lower level silicide layer and the upper level conductive layer. The tungsten contact and a neck portion of the silicide layer are the programmable portion of the electrical fuse. High post-programming resistance is achieved by a first programming phase that depletes silicide in the silicide layer, followed by a second programming phase that depletes tungsten in the tungsten contact.
摘要翻译： 介绍了电熔丝及其编程过程。 电熔丝包括在非掺杂或轻掺杂多晶硅层上的下层硅化物层，上层导电层和耦合在下层硅化物层和上层导电层之间的钨接触。 钨触点和硅化物层的颈部是电熔丝的可编程部分。 通过第一编程阶段实现高后编程电阻，其消耗硅化物层中的硅化物，随后是第二编程阶段，其消耗钨接触中的钨。
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10.发明申请Current balance in a multi-phase power converter with constant on-time control 有权具有恒定导通时间控制的多相功率转换器的电流平衡公开(公告)号：US20100033154A1
公开(公告)日：2010-02-11
申请号：US12461182
申请日：2009-08-04
IPC分类号： G05F1/10
CPC分类号： H02M3/1584 , H02J1/102 , H02J2001/106
摘要： A multi-phase power converter with constant on-time control includes a plurality of channels to convert an input voltage into an output voltage, and each of the channels is driven by a control signal. When all channel currents of the channels are balanced, each of the control signals remains a constant on-time. When the channel currents are imbalanced, the on-times of the control signals are modulated according to the difference between each channel current and a target value for current balance between the channels.
摘要翻译： 具有恒定导通时间控制的多相功率转换器包括将输入电压转换为输出电压的多个通道，并且每个通道由控制信号驱动。 当通道的所有通道电流平衡时，每个控制信号保持恒定的导通时间。 当通道电流不平衡时，控制信号的接通时间根据每个通道电流和目标值之间的差异进行调制，以实现通道间的电流平衡。
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