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1. 发明授权

US11088549B2 Multiple chargers configuration in one system 有权
公开(公告)号：US11088549B2
公开(公告)日：2021-08-10
申请号：US15396264
申请日：2016-12-30
申请人： INTERSIL AMERICAS LLC
发明人： Sungkeun Lim , Lei Zhao , Mehul Shah , Jia Wei
IPC分类号： H02J7/00 , B60L53/24 , B60L53/10 , H02J9/06 , B60L53/14 , B60L53/16
摘要： An electronic system, a multiple charger configuration, and method of operating a multiple input, multiple charger configuration are disclosed. For example, a multiple charger configuration is disclosed, which includes a first battery charger circuit configured to receive to a first input voltage, and a second battery charger circuit configured to receive a second input voltage. A first switching transistor is coupled to an output of the first battery charger circuit, a system voltage output terminal, and a battery terminal configured to connect to a battery stack or at least one battery cell. A second switching transistor is coupled to an output of the second battery charger circuit and the battery terminal. Thus, the multiple chargers can be utilized in one system to charge or discharge a battery stack or at least one battery cell and thereby deliver power for a battery-operated system, product or device.

2. 发明授权

US10797490B2 Battery charge system with transition control that protects adapter components when transitioning from battery mode to adapter mode 有权
公开(公告)号：US10797490B2
公开(公告)日：2020-10-06
申请号：US14337212
申请日：2014-07-21
申请人： INTERSIL AMERICAS LLC
发明人： Lei Zhao , Jia Wei , John S. Kleine
IPC分类号： H02J7/00 , H02J7/34 , H02J1/00 , G06F1/26 , H02J1/08
摘要： A battery charge system including an adapter node, a system node, a battery, a first isolation switch coupled between the adapter and system nodes, a second isolation switch coupled between the battery and system nodes, a boost converter, and a controller. The controller turns off the first isolation switch and turns on the second isolation switch during a battery mode, activates the boost converter when an adapter voltage is detected, turns off the second isolation switch when the system voltage rises above the battery voltage, and turns on the first isolation switch when the system voltage rises to an operating voltage level. The boost converter may then be turned off once in the adapter mode. The second isolation switch may initially be turned on partially at a low current level when the adapter is detected, and then turned fully on when the system voltage is at the operating voltage level.

3. 发明授权

US10594152B1 Method and system for a battery charger 有权
公开(公告)号：US10594152B1
公开(公告)日：2020-03-17
申请号：US15462613
申请日：2017-03-17
申请人： Intersil Americas LLC
发明人： Lei Zhao , Jia Wei
IPC分类号： H02J7/00
摘要： One embodiment pertains to a method including determining if external power is supplied to a power system which includes a DC-DC voltage converter; if external power is not supplied to the power system, then turn on a switching transistor in the DC-DC voltage converter and provide battery power to the load through the switching transistor; if external power is supplied to the power system, then charge a battery.

4. 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.

5. 发明申请

US20170279284A1 MULTIPLE CHARGERS CONFIGURATION IN ONE SYSTEM 审中-公开
公开(公告)号：US20170279284A1
公开(公告)日：2017-09-28
申请号：US15396264
申请日：2016-12-30
申请人： INTERSIL AMERICAS LLC
发明人： Sungkeun Lim , Lei Zhao , Mehul Shah , Jia Wei
IPC分类号： H02J7/00
CPC分类号： H02J7/0024 , H02J7/0045 , H02J7/0068 , H02J2007/0059
摘要： An electronic system, a multiple charger configuration, and method of operating a multiple input, multiple charger configuration are disclosed. For example, a multiple charger configuration is disclosed, which includes a first battery charger circuit configured to receive to a first input voltage, and a second battery charger circuit configured to receive a second input voltage. A first switching transistor is coupled to an output of the first battery charger circuit, a system voltage output terminal, and a battery terminal configured to connect to a battery stack or at least one battery cell. A second switching transistor is coupled to an output of the second battery charger circuit and the battery terminal. Thus, the multiple chargers can be utilized in one system to charge or discharge a battery stack or at least one battery cell and thereby deliver power for a battery-operated system, product or device.

6. 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.

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.

10. 发明申请

US20160204632A1 OVERCURRENT PROTECTION IN A BATTERY CHARGER 有权
标题翻译：电池充电器中的过电流保护
公开(公告)号：US20160204632A1
公开(公告)日：2016-07-14
申请号：US14747912
申请日：2015-06-23
申请人： INTERSIL AMERICAS LLC
发明人： John Stuart Kleine , Lei Zhao , Jia Wei
IPC分类号： H02J7/00
CPC分类号： H02J7/0031 , H02H9/025 , H02J7/0068 , H02J7/0085 , H02J7/34 , H02J2007/0039
摘要： Systems and methods are provided for overcurrent protection in a battery charger. In certain embodiments, a method includes turning on an adapter switch to receive electrical power from an adapter connected to the battery charger; controlling a switching regulator to direct electrical current between the switching regulator and a battery port. Further, the method includes sensing a voltage drop that is related to the electrical current passing between the switching regulator and the battery port; comparing the sensed voltage drop against at least one reference voltage; and, when the sensed voltage exceeds the reference voltage, changing operation of the adapter switch to protect the battery charger from an overcurrent state.
摘要翻译：为电池充电器中的过电流保护提供系统和方法。在某些实施例中，一种方法包括打开适配器开关以从连接到电池充电器的适配器接收电力; 控制开关调节器以在开关调节器和电池端口之间引导电流。此外，该方法包括感测与通过开关调节器和电池端口之间的电流相关的电压降; 将所感测的电压降与至少一个参考电压进行比较; 并且当感测到的电压超过参考电压时，改变适配器开关的操作以保护电池充电器免受过电流状态的影响。

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