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1. 发明授权

US11258271B2 Voltage converters and methods for use therewith 有权
公开(公告)号：US11258271B2
公开(公告)日：2022-02-22
申请号：US16730637
申请日：2019-12-30
申请人： Intersil Americas LLC
发明人： Michael Jason Houston , Lei Zhao
IPC分类号： H02J7/00 , H02J3/00 , H02M3/158 , H02M7/04 , H02M1/14 , H02M1/00
摘要： A voltage error signal is provided to a PWM controller of a voltage regular and used to produce a PWM signal that drives a power stage of the regulator. When operating in an adapter current limit regulation mode, an adapter current sense voltage, indicative of an adapter current, is compared to an adapter current reference voltage to produce an adapter current error signal. A compensator receives the adapter current error signal and outputs a compensated adapter current error signal. The adapter current sense voltage, or a high pass filtered version thereof, is subtracted from the compensated adapter current error signal to produce the voltage error signal provided to the PWM controller. Alternatively, an input voltage, or a high pass filtered version thereof, is added to the compensated adapter current error signal to produce the voltage error signal.

2. 发明授权

US10727744B2 System and method for maintaining a constant output voltage ripple in a buck converter in discontinuous conduction mode 有权
公开(公告)号：US10727744B2
公开(公告)日：2020-07-28
申请号：US15585028
申请日：2017-05-02
申请人： Intersil Americas LLC
发明人： Michael Jason Houston , Steven Patrick Laur
IPC分类号： H02M3/158 , H02M3/157 , H02M1/15 , H02M1/08
摘要： The system and method creates a substantially constant output voltage ripple in a buck converter in discontinuous conduction mode by varying the on-time of a pulse width modulator (PWM) signal driving the buck converter when the buck converter is operating in discontinuous conduction mode. A first signal is generated that is a function of the switching frequency of the buck converter. This signal is low-pass filtered and compared with a second signal that is a function of the switching frequency of the buck converter when operating in continuous conduction mode and with constant PWM on-time. The output signal generated by the comparator is a signal that is equal to the ratio of the first signal and the second signal. The on-time of a voltage controlled oscillator is controlled by the output signal, the oscillator signal causing the on-time of the PWM signal to vary in a controlled fashion.

3. 发明授权

US09748781B2 Voltage converters and methods for use therewith 有权
公开(公告)号：US09748781B2
公开(公告)日：2017-08-29
申请号：US14539699
申请日：2014-11-12
申请人： Intersil Americas LLC
发明人： Michael Jason Houston , Lei Zhao
IPC分类号： H02J3/00 , H02J7/00 , H02M3/158 , H02M7/04 , H02M1/14 , H02M1/00
CPC分类号： H02J7/0052 , H02J3/00 , H02J2007/0059 , H02M1/14 , H02M3/158 , H02M7/04 , H02M2001/0003 , H02M2001/007 , Y10T307/406
摘要： A voltage error signal VERR is provided to a PWM controller of a voltage regular and used to produce a PWM signal that drives a power stage of the regulator. When operating in an adaptor current limit regulation mode, an adaptor current sense voltage VACS, indicative of an adapter current IA, is compared to an adapter current reference voltage VAC_REF to produce an adapter current error signal VAC_ERR. A compensator receives the adapter current error signal VAC_ERR and outputs a compensated adapter current error signal. The adaptor current sense voltage VACS, or a high pass filtered version thereof, is subtracted from the compensated adapter current error signal to produce the voltage error signal VERR provided to the PWM controller. Alternatively, an input voltage VIN, or a high pass filtered version thereof, is added to the compensated adapter current error signal to produce the voltage error signal VERR.

4. 发明授权

US10523025B2 Voltage converters and methods to use therewith 有权
公开(公告)号：US10523025B2
公开(公告)日：2019-12-31
申请号：US15688398
申请日：2017-08-28
申请人： Intersil Americas LLC
发明人： Michael Jason Houston , Lei Zhao
IPC分类号： H02J7/00 , H02J3/00 , H02M3/158 , H02M7/04 , H02M1/14 , H02M1/00
摘要： A voltage error signal is provided to a PWM controller of a voltage regular and used to produce a PWM signal that drives a power stage of the regulator. When operating in an adapter current limit regulation mode, an adapter current sense voltage, indicative of an adapter current, is compared to an adapter current reference voltage to produce an adapter current error signal. A compensator receives the adapter current error signal and outputs a compensated adapter current error signal. The adapter current sense voltage, or a high pass filtered version thereof, is subtracted from the compensated adapter current error signal to produce the voltage error signal provided to the PWM controller. Alternatively, an input voltage, or a high pass filtered version thereof, is added to the compensated adapter current error signal to produce the voltage error signal.

5. 发明授权

US10348204B2 Enhanced power mode transistions in buck-boost converters 有权
公开(公告)号：US10348204B2
公开(公告)日：2019-07-09
申请号：US15878226
申请日：2018-01-23
申请人： Intersil Americas LLC
发明人： Michael Jason Houston
IPC分类号： H02M3/158
摘要： An electronic system, DC-DC voltage converter, method of operating a buck-boost DC-DC converter, and method for power mode transitioning in a DC-DC voltage converter are disclosed. For example, one method includes receiving a compensated error signal associated with an output voltage of the DC-DC voltage converter, determining a power mode of operation of the DC-DC voltage converter, and if the power mode of operation is a first mode, outputting a first control signal to regulate the output voltage of the DC-DC voltage converter. If the power mode of operation is a second mode, outputting a second control signal to regulate the output voltage of the DC-DC voltage converter, and if the power mode of operation is a third mode, outputting a third control signal to regulate the output voltage of the DC-DC voltage converter.

6. 发明授权

US09882488B2 Enhanced power mode transitions in buck-boost converters 有权
公开(公告)号：US09882488B2
公开(公告)日：2018-01-30
申请号：US15078841
申请日：2016-03-23
申请人： INTERSIL AMERICAS LLC
发明人： Michael Jason Houston
IPC分类号： H02M3/158
CPC分类号： H02M3/1582
摘要： An electronic system, DC-DC voltage converter, method of operating a buck-boost DC-DC converter, and method for power mode transitioning in a DC-DC voltage converter are disclosed. For example, one method includes receiving a compensated error signal associated with an output voltage of the DC-DC voltage converter, determining a power mode of operation of the DC-DC voltage converter, and if the power mode of operation is a first mode, outputting a first control signal to regulate the output voltage of the DC-DC voltage converter. If the power mode of operation is a second mode, outputting a second control signal to regulate the output voltage of the DC-DC voltage converter, and if the power mode of operation is a third mode, outputting a third control signal to regulate the output voltage of the DC-DC voltage converter.

7. 发明申请

US20160204631A1 OVERCURRENT PROTECTION IN A BATTERY CHARGER 审中-公开
标题翻译：电池充电器中的过电流保护
公开(公告)号：US20160204631A1
公开(公告)日：2016-07-14
申请号：US14981776
申请日：2015-12-28
申请人： INTERSIL AMERICAS LLC
发明人： Michael Jason Houston , John Stuart Kleine , Lei Zhao , Jia Wei
IPC分类号： H02J7/00
CPC分类号： H02J7/0029 , H02H3/202 , H02J7/007 , H02J2007/0039
摘要： Systems and methods for overcurrent protection in a battery charger are provided. For example, a method for overcurrent protection may include controlling a switching regulator to direct electrical current between the switching regulator and a battery port; sensing a voltage drop that is related to the electrical current passing between the switching regulator and the battery port; applying a first ramp voltage to the sensed voltage drop generating a modified sensed voltage drop; comparing the modified sensed voltage drop against at least one reference voltage; and when the modified sensed voltage drop exceeds the at least one reference voltage, changing operation of the switching regulator to protect the battery charger from an overcurrent state.
摘要翻译：提供了一种用于电池充电器中的过电流保护的系统和方法。例如，用于过电流保护的方法可以包括控制开关调节器以引导开关调节器和电池端口之间的电流; 感测与在开关调节器和电池端口之间通过的电流相关的电压降; 对所感测的电压降施加第一斜坡电压，产生修改的感测电压降; 将修改的感测电压降与至少一个参考电压进行比较; 并且当修改的感测电压降超过至少一个参考电压时，改变开关调节器的操作以保护电池充电器免受过电流状态的影响。

8. 发明申请

US20150372613A1 VOLTAGE CONVERTERS AND METHODS FOR USE THEREWITH 有权
标题翻译：电压转换器及其使用方法
公开(公告)号：US20150372613A1
公开(公告)日：2015-12-24
申请号：US14539699
申请日：2014-11-12
申请人： Intersil Americas LLC
发明人： Michael Jason Houston , Lei Zhao
IPC分类号： H02M7/217 , H02J7/00
CPC分类号： H02J7/0052 , H02J3/00 , H02J2007/0059 , H02M1/14 , H02M3/158 , H02M7/04 , H02M2001/0003 , H02M2001/007 , Y10T307/406
摘要： A voltage error signal VERR is provided to a PWM controller of a voltage regular and used to produce a PWM signal that drives a power stage of the regulator. When operating in an adaptor current limit regulation mode, an adaptor current sense voltage VACS, indicative of an adapter current IA, is compared to an adapter current reference voltage VAC—REF to produce an adapter current error signal VAC—ERR. A compensator receives the adapter current error signal VAC—ERR and outputs a compensated adapter current error signal. The adaptor current sense voltage VACS, or a high pass filtered version thereof, is subtracted from the compensated adapter current error signal to produce the voltage error signal VERR provided to the PWM controller. Alternatively, an input voltage VIN, or a high pass filtered version thereof, is added to the compensated adapter current error signal to produce the voltage error signal VERR.
摘要翻译：电压误差信号VERR被提供给恒定电压的PWM控制器，并用于产生驱动调节器的功率级的PWM信号。当在适配器电流限制模式下操作时，将指示适配器电流IA的适配器电流感测电压VACS与适配器电流参考电压VAC-REF进行比较，以产生适配器电流误差信号VAC-ERR。补偿器接收适配器电流误差信号VAC-ERR并输出补偿的适配器电流误差信号。从补偿的适配器电流误差信号中减去适配器电流感测电压VACS或其高通滤波版本，以产生提供给PWM控制器的电压误差信号VERR。或者，将输入电压VIN或其高通滤波版本添加到经补偿的适配器电流误差信号以产生电压误差信号VERR。

9. 发明申请

US20150318786A1 SYSTEM AND METHOD FOR MAINTAINING A CONSTANT OUTPUT VOLTAGE RIPPLE IN A BUCK CONVERTER IN DISCONTINUOUS CONDUCTION MODE 有权
标题翻译：在不连续导通模式下保持输出转换器中恒定输出电压纹波的系统和方法
公开(公告)号：US20150318786A1
公开(公告)日：2015-11-05
申请号：US14312678
申请日：2014-06-23
申请人： INTERSIL AMERICAS, LLC
发明人： Michael Jason Houston , Steven Patrick Laur
IPC分类号： H02M3/158
CPC分类号： H02M3/157 , H02M1/083 , H02M1/15 , H02M3/158 , H02M3/1588 , Y02B70/1466
摘要： The system and method creates a substantially constant output voltage ripple in a buck converter in discontinuous conduction mode by varying the on-time of a pulse width modulator (PWM) signal driving the buck converter when the buck converter is operating in discontinuous conduction mode. A first signal is generated that is a function of the switching frequency of the buck converter. This signal is low-pass filtered and compared with a second signal that is a function of the switching frequency of the buck converter when operating in continuous conduction mode and with constant PWM on-time. The output signal generated by the comparator is a signal that is equal to the ratio of said first signal and said second signal. The on-time of a voltage controlled oscillator is controlled by said output signal, the oscillator signal causing the on-time of said PWM signal to vary in a controlled fashion.
摘要翻译：该系统和方法通过改变当降压转换器工作在不连续导通模式时驱动降压转换器的脉冲宽度调制器（PWM）信号的导通时间，在不连续导通模式中的降压转换器中产生基本恒定的输出电压纹波。产生第一信号，其是降压转换器的开关频率的函数。该信号被低通滤波，并且与在连续导通模式下工作并且具有恒定PWM导通时间时的降压转换器的开关频率的函数的第二信号进行比较。由比较器产生的输出信号是等于所述第一信号和所述第二信号的比率的信号。电压控制振荡器的导通时间由所述输出信号控制，导致所述PWM信号导通时间的振荡器信号以受控的方式变化。

10. 发明授权

US08963521B2 Power supply with a magnetically uncoupled phase and an odd number of magnetically coupled phases, and control for a power supply with magnetically coupled and magnetically uncoupled phases 有权
标题翻译：具有磁耦合相和奇数个磁耦合相的电源，以及具有磁耦合和磁耦合相的电源的控制
公开(公告)号：US08963521B2
公开(公告)日：2015-02-24
申请号：US13852973
申请日：2013-03-28
申请人： Intersil Americas LLC
发明人： Jia Wei , Michael Jason Houston
IPC分类号： H02M3/158 , G05F1/46 , H02M1/00
CPC分类号： G05F1/46 , H02M3/1584 , H02M2001/0032 , H02M2003/1586 , Y02B70/16
摘要： An embodiment of a power supply includes an input node operable to receive an input voltage, an output node operable to provide a regulated output voltage, an odd number of magnetically coupled phase paths each coupled between the input and output nodes, and a first magnetically uncoupled phase path coupled between the input and output nodes. Such a power supply may improve its efficiency by activating different combinations of the coupled and uncoupled phase paths depending on the load conditions. For example, the power supply may activate only an uncoupled phase path during light-load conditions, may activate only coupled phase paths during moderate-load conditions, and may activate both coupled and uncoupled phase paths during heavy-load conditions and during a step-up load transient.
摘要翻译：电源的实施例包括可操作以接收输入电压的输入节点，可操作以提供调节输出电压的输出节点，每个耦合在输入和输出节点之间的奇数个磁耦合相位路径，以及第一磁耦合相位路径耦合在输入和输出节点之间。这样的电源可以通过根据负载条件激活耦合和非耦合相位路径的不同组合来提高其效率。例如，在轻负载状态期间，电源可以仅激活非耦合相位路径，在中等负载状态下仅激活耦合的相位路径，并且可以在重负载状态期间和在步进电压期间激活耦合和非耦合相位路径， up负载瞬变。

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