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11. 发明授权

US10090688B2 Overcurrent protection in a battery charger 有权
公开(公告)号：US10090688B2
公开(公告)日：2018-10-02
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 , H02H3/20
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.

12. 发明授权

US09647558B2 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：US09647558B2
公开(公告)日：2017-05-09
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 , H02M1/15
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 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.

13. 发明申请

US20170077817A1 ENHANCED POWER MODE TRANSITIONS IN BUCK-BOOST CONVERTERS 有权
标题翻译：升压转换器中的增强功率模式转换
公开(公告)号：US20170077817A1
公开(公告)日：2017-03-16
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.
摘要翻译：公开了一种电子系统，DC-DC电压转换器，降压升压DC-DC转换器的操作方法，以及DC-DC电压转换器中的功率模式转换方法。例如，一种方法包括接收与DC-DC电压转换器的输出电压相关联的补偿误差信号，确定DC-DC电压转换器的功率工作模式，并且如果功率工作模式是第一模式，输出第一控制信号以调节DC-DC电压转换器的输出电压。如果电力工作模式是第二模式，则输出第二控制信号以调节DC-DC电压转换器的输出电压，并且如果工作模式是第三模式，则输出第三控制信号以调节输出 DC-DC电压转换器的电压。

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