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1. 发明授权

US10050530B2 Method and apparatus for control adaptation in resonant-tapped inductor converters 有权
公开(公告)号：US10050530B2
公开(公告)日：2018-08-14
申请号：US15363880
申请日：2016-11-29
申请人： Infineon Technologies Americas Corp.
发明人： Amir Babazadeh , Venkat Sreenivas
IPC分类号： H02M3/158 , H02M1/084 , H02M1/14 , H02M1/00
摘要： A semi-resonant voltage converter has a synchronous rectification (SR) switch through which a half-cycle sinusoidal-like current is conducted when turned on. An embodiment of a method of controlling operation of the semi-resonant voltage converter includes switching the SR switch and other switches of the semi-resonant voltage converter via a linear controller so as to supply output power to a load, the semi-resonant voltage converter having a DC gain that increases when load current increases, and scaling downward an output of the linear controller used to control the switching of the SR switch responsive to the load current exceeding a first threshold, so as to at least partly counteract an increase in the DC gain of the semi-resonant voltage converter. Other control adaptation methods are also described.

2. 发明申请

US20160344291A1 CURRENT BALANCING IN A MULTI-PHASE POWER SUPPLY 审中-公开
标题翻译：多相电源中的电流平衡
公开(公告)号：US20160344291A1
公开(公告)日：2016-11-24
申请号：US15229480
申请日：2016-08-05
申请人： Infineon Technologies Americas Corp.
发明人： Venkat Sreenivas
IPC分类号： H02M3/158 , H02M1/08
CPC分类号： H02M3/158 , H02M1/08 , H02M3/156 , H02M3/1584 , H02M2001/0009 , H02M2003/1566
摘要： According to example configurations herein, a controller is operated in a control mode (such as a high-speed control mode) in which the controller controls multiple phases in the power supply to produce an output voltage. The output voltage produced by the controller supplies current to power a dynamic load. While in the (high-speed current balance) control mode, the controller: i) produces, for each of the multiple phases, a respective current value representative of an estimated amount of current supplied by that phase to the dynamic load; and ii) modifies an order of activating the phases based on magnitudes of respective estimated current values produced for the multiple phases.
摘要翻译：根据这里的示例性配置，控制器以控制模式（例如高速控制模式）操作，其中控制器控制电源中的多个相位以产生输出电压。控制器产生的输出电压为动态负载提供电流。在（高速电流平衡）控制模式中，控制器：i）针对每个多相产生表示由该相向动态负载提供的电流的估计量的相应电流值; 以及ii）基于为多个相产生的相应估计电流值的大小来修改激活相位的顺序。

3. 发明申请

US20170063235A1 POWER SUPPLY CIRCUITRY AND ADAPTIVE TRANSIENT CONTROL 审中-公开
标题翻译：电源电路和自适应瞬态控制
公开(公告)号：US20170063235A1
公开(公告)日：2017-03-02
申请号：US15347951
申请日：2016-11-10
申请人： Infineon Technologies Americas Corp.
发明人： Venkat Sreenivas , Robert T. Carroll
IPC分类号： H02M3/158
CPC分类号： H02M3/158 , H02M3/156 , H02M3/1584 , H02M3/1588 , H02M2003/1566 , Y02B70/1466
摘要： A control circuitry can be configured to receive an error signal indicating a difference between an output voltage of the power supply and a desired setpoint for the output voltage. According to one configuration, depending on the error signal, the control circuitry initiates switching between operating the control circuitry in a pulse width modulation mode and operating the control circuitry in a pulse frequency modulation mode to produce an output voltage. Operation of the control circuitry in the pulse frequency modulation mode during a transient condition, such as when a dynamic load instantaneously requires a different amount of current, enables the power supply to satisfy current consumption by the dynamic load. Subsequent to the transient condition, the control circuitry switches back to operation in the pulse width modulation mode.
摘要翻译：控制电路可以被配置为接收指示电源的输出电压与输出电压的期望设定值之间的差异的误差信号。根据一种配置，根据误差信号，控制电路在脉冲宽度调制模式下启动操作控制电路之间的切换，并以脉冲频率调制模式操作控制电路以产生输出电压。在瞬态状态下，例如当动态负载瞬时需要不同电流量时，在脉冲频率调制模式下的控制电路的操作使得电源能够通过动态负载来满足电流消耗。在瞬态条件之后，控制电路切换回以脉宽调制方式工作。

4. 发明授权

US10044270B2 Power supply circuitry and adaptive transient control 有权
公开(公告)号：US10044270B2
公开(公告)日：2018-08-07
申请号：US15347951
申请日：2016-11-10
申请人： Infineon Technologies Americas Corp.
发明人： Venkat Sreenivas , Robert T. Carroll
IPC分类号： H02M3/158 , H02M3/156
摘要： A control circuitry can be configured to receive an error signal indicating a difference between an output voltage of the power supply and a desired setpoint for the output voltage. According to one configuration, depending on the error signal, the control circuitry initiates switching between operating the control circuitry in a pulse width modulation mode and operating the control circuitry in a pulse frequency modulation mode to produce an output voltage. Operation of the control circuitry in the pulse frequency modulation mode during a transient condition, such as when a dynamic load instantaneously requires a different amount of current, enables the power supply to satisfy current consumption by the dynamic load. Subsequent to the transient condition, the control circuitry switches back to operation in the pulse width modulation mode.

5. 发明申请

US20180152104A1 Method and Apparatus for Control Adaptation in Resonant-Tapped Inductor Converters 审中-公开
公开(公告)号：US20180152104A1
公开(公告)日：2018-05-31
申请号：US15363880
申请日：2016-11-29
申请人： Infineon Technologies Americas Corp.
发明人： Amir Babazadeh , Venkat Sreenivas
IPC分类号： H02M3/158 , H02M1/084 , H02M1/14
CPC分类号： H02M3/158 , H02M1/084 , H02M1/14 , H02M3/1584 , H02M3/1588 , H02M2001/0009 , H02M2001/0058
摘要： A semi-resonant voltage converter has a synchronous rectification (SR) switch through which a half-cycle sinusoidal-like current is conducted when turned on. An embodiment of a method of controlling operation of the semi-resonant voltage converter includes switching the SR switch and other switches of the semi-resonant voltage converter via a linear controller so as to supply output power to a load, the semi-resonant voltage converter having a DC gain that increases when load current increases, and scaling downward an output of the linear controller used to control the switching of the SR switch responsive to the load current exceeding a first threshold, so as to at least partly counteract an increase in the DC gain of the semi-resonant voltage converter. Other control adaptation methods are also described.

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