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1. 发明授权

US06791407B2 Switchable power amplifier 有权
标题翻译：可切换功率放大器
公开(公告)号：US06791407B2
公开(公告)日：2004-09-14
申请号：US10047543
申请日：2002-01-15
申请人： Andrei Viktorovich Grebennikov , Herbert Jaeger , Eugene Heaney
发明人： Andrei Viktorovich Grebennikov , Herbert Jaeger , Eugene Heaney
IPC分类号： H03G900
CPC分类号： H03F1/0272 , H03F1/0277
摘要： A power amplifier having a first stage amplifier and a second stage amplifier, each stage of the power amplifier being configured in one of at least two power states based on a desired power output. When the first and second stages are configured in a first state, the power amplifier delivers efficient amplification in a first output power range and, when the first and second stages are configured in a second state, the power amplifier delivers efficient amplification in a second output power range. By configuring each stage in one of at least two states, a high level of power efficiency can be achieved for a broad range of power levels.
摘要翻译：一种具有第一级放大器和第二级放大器的功率放大器，功率放大器的每个级基于期望的功率输出被配置为至少两个功率状态之一。当第一和第二级被配置在第一状态时，功率放大器在第一输出功率范围内提供有效的放大，并且当第一和第二级配置在第二状态时，功率放大器在第二输出功率范围通过将每个级配置为至少两种状态之一，可以在宽范围的功率电平下实现高水平的功率效率。

2. 发明授权

US06552610B1 Transmission-line tuned switching power amplifier 有权
标题翻译：传输线调谐开关功率放大器
公开(公告)号：US06552610B1
公开(公告)日：2003-04-22
申请号：US10047544
申请日：2002-01-15
申请人： Andrei Viktorovich Grebennikov , Herbert Jaeger
发明人： Andrei Viktorovich Grebennikov , Herbert Jaeger
IPC分类号： H03F3217
CPC分类号： H03F3/2176 , H03F3/217 , H03F2200/423
摘要： A tuned switching power amplifier having a switch for receiving an AC input signal. The switch controls the application of DC power to a load through a load network. The load network develops a parallel inductance and a parallel capacitance across the switch that minimizes power losses associated with the switch by creating a transient response across the switch that insures that, when the switch transitions from on to off, the voltage across the switch remains low until the current trough the switch reaches zero, and that, when the switch transitions from off to on, the voltage across the switch is zero and has a substantially zero time derivative prior to when the switch transitions from off to on. The parallel inductance is developed by a transmission line of a determined electrical length.
摘要翻译：一种具有用于接收AC输入信号的开关的调谐开关功率放大器。交换机通过负载网络控制对负载的直流电力的应用。负载网络在开关之间形成并联电感和并联电容，通过在开关上产生瞬态响应来最大限度地减少与开关相关的功率损耗，确保当开关从开关转换到断开时，开关两端的电压保持低电平直到开关达到零，并且当开关从断开转变为导通时，开关两端的电压为零，并且在开关从断开转换到导通之前具有基本为零的时间导数。并联电感由确定的电长度的传输线显影。

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