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公开(公告)号：US09356512B2
公开(公告)日：2016-05-31
申请号：US14018648
申请日：2013-09-05
申请人： Broadcom Corporation
发明人： Debopriyo Chowdhury , Ali Afsahi
CPC分类号： H02M3/158 , H02M2001/0022 , H03F1/0227 , H03F3/24
摘要： A communication device, such as a smart phone, includes an envelope tracking power supply. The envelope tracking power supply is configured for direct connection to a supply voltage. The direct connection may be made without connection through an intermediate voltage regulator, such as a low drop out regulator. The supply voltage may be a relatively high battery voltage, for example, that would normally result in greater than permissible voltage limits on the transistors used in conventional envelope tracking power supplies.
摘要翻译： 诸如智能电话的通信设备包括信封跟踪电源。 包络跟踪电源被配置为直接连接到电源电压。 可以通过中间电压调节器（例如低压降调节器）进行直接连接。 电源电压可以是相对较高的电池电压，例如通常会导致在传统的包络跟踪电源中使用的晶体管上允许的电压极限。
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公开(公告)号：US20150146819A1
公开(公告)日：2015-05-28
申请号：US14100931
申请日：2013-12-09
申请人： Broadcom Corporation
发明人： Debopriyo Chowdhury , Ali Afsahi
IPC分类号： H03F1/32
CPC分类号： H03F1/0227 , H03F1/223 , H03F1/3223 , H03F3/195 , H03F3/24 , H03F3/45179 , H03F2200/336 , H03F2203/45394
摘要： A communication device, such as a smart phone, includes an envelope tracking power supply modulator. The envelope tracking power supply modulator receives an envelope tracking reference signal. A baseband controller pre-distorts the envelope tracking reference signal responsive to distortion caused by the envelope tracking power supply modulator. For instance, the pre-distortion may modify the nominal envelope tracking reference signal so that, after the modulator acts on the modified reference signal, the output of the modulator has increased linearity.
摘要翻译： 诸如智能电话的通信设备包括信封跟踪电源调制器。 信封跟踪电源调制器接收包络跟踪参考信号。 基带控制器响应于由包络跟踪电源调制器引起的失真来预失真包络跟踪参考信号。 例如，预失真可以修改标称包络跟踪参考信号，使得在调制器作用于修改的参考信号之后，调制器的输出具有增加的线性度。
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公开(公告)号：US20150028829A1
公开(公告)日：2015-01-29
申请号：US14018648
申请日：2013-09-05
申请人： Broadcom Corporation
发明人： Debopriyo Chowdhury , Ali Afsahi
CPC分类号： H02M3/158 , H02M2001/0022 , H03F1/0227 , H03F3/24
摘要： A communication device, such as a smart phone, includes an envelope tracking power supply. The envelope tracking power supply is configured for direct connection to a supply voltage. The direct connection may be made without connection through an intermediate voltage regulator, such as a low drop out regulator. The supply voltage may be a relatively high battery voltage, for example, that would normally result in greater than permissible voltage limits on the transistors used in conventional envelope tracking power supplies.
摘要翻译： 诸如智能电话的通信设备包括信封跟踪电源。 包络跟踪电源被配置为直接连接到电源电压。 可以通过中间电压调节器（例如低压降调节器）进行直接连接。 电源电压可以是相对较高的电池电压，例如通常会导致在传统的包络跟踪电源中使用的晶体管上允许的电压极限。
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公开(公告)号：US20170279412A1
公开(公告)日：2017-09-28
申请号：US15180840
申请日：2016-06-13
申请人： Broadcom Corporation
CPC分类号： H03F1/0222 , H03F1/0211 , H03F1/0244 , H03F1/0277 , H03F1/22 , H03F1/223 , H03F1/3241 , H03F3/193 , H03F3/213 , H03F3/245 , H03F3/45188 , H03F2200/102 , H03F2200/18 , H03F2200/451 , H03F2201/3233 , H03F2203/45048 , H03F2203/45481
摘要： An amplifier may include control circuitry that may track a first input signal parameter and, in response, adjust a value of a second input parameter. Input parameter tracking and adjustment may facilitate control of output parameters for the amplifier. For example, an envelope-tracking amplifier may track input signal amplitude and adjust other input parameters in response. The adjustments may facilitate control of output parameters, such as gain or efficiency. The amplifier may further include calibration circuitry to determine adjustment responses to various tracked input parameters.
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公开(公告)号：US09362866B2
公开(公告)日：2016-06-07
申请号：US14100931
申请日：2013-12-09
申请人： Broadcom Corporation
发明人： Debopriyo Chowdhury , Ali Afsahi
IPC分类号： H04K1/02 , H04L25/03 , H04L25/49 , H03F1/02 , H03F1/22 , H03F1/32 , H03F3/195 , H03F3/24 , H03F3/45
CPC分类号： H03F1/0227 , H03F1/223 , H03F1/3223 , H03F3/195 , H03F3/24 , H03F3/45179 , H03F2200/336 , H03F2203/45394
摘要： A communication device, such as a smart phone, includes an envelope tracking power supply modulator. The envelope tracking power supply modulator receives an envelope tracking reference signal. A baseband controller pre-distorts the envelope tracking reference signal responsive to distortion caused by the envelope tracking power supply modulator. For instance, the pre-distortion may modify the nominal envelope tracking reference signal so that, after the modulator acts on the modified reference signal, the output of the modulator has increased linearity.
摘要翻译： 诸如智能电话的通信设备包括信封跟踪电源调制器。 信封跟踪电源调制器接收包络跟踪参考信号。 基带控制器响应于由包络跟踪电源调制器引起的失真来预失真包络跟踪参考信号。 例如，预失真可以修改标称包络跟踪参考信号，使得在调制器作用于修改的参考信号之后，调制器的输出具有增加的线性度。
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