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公开(公告)号：US20140152284A1
公开(公告)日：2014-06-05
申请号：US14096545
申请日：2013-12-04
Applicant: RF Micro Devices, Inc.
Inventor： Ashraf Rozek
IPC: H02M3/156
CPC classification number: H02M3/156
Abstract: A regulated switching converter having improved closed loop settling time is disclosed. An error amplifier having a voltage reference input, a feedback input, and an error output is included. An output filter having a voltage output terminal coupled to the feedback input provides an output voltage sample to the error amplifier. A compensation network coupled between the feedback input and the error output of the error amplifier includes at least one capacitor and at least one switch that is communicatively coupled across the at least one capacitor. A controller is adapted to monitor current flowing through the switching output terminal. The controller has at least one switch control output coupled to a control input of the at least one switch to allow the controller to momentarily close the at least one switch to substantially discharge the at least one capacitor when a predetermined high current state is reached.
Abstract translation: 公开了一种具有改进的闭环稳定时间的稳压开关转换器。 包括具有电压基准输入，反馈输入和误差输出的误差放大器。 具有耦合到反馈输入的电压输出端的输出滤波器向误差放大器提供输出电压采样。 耦合在误差放大器的反馈输入和误差输出之间的补偿网络包括至少一个电容器和至少一个通信地耦合在至少一个电容器上的开关。 控制器适于监测流过开关输出端的电流。 所述控制器具有耦合到所述至少一个开关的控制输入的至少一个开关控制输出，以允许所述控制器在达到预定的高电流状态时暂时关闭所述至少一个开关以基本上放电所述至少一个电容器。
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公开(公告)号：US20150048891A1
公开(公告)日：2015-02-19
申请号：US14458341
申请日：2014-08-13
Applicant: RF Micro Devices, Inc.
Inventor： Ashraf Rozek , Michael R. Kay
CPC classification number: H02M3/158 , H02M3/07 , H02M2001/007 , H03F1/0227 , H03F3/005 , H03F3/19 , H03F3/195 , H03F3/21 , H03F3/245 , H03F2200/102 , H03F2200/451
Abstract: A DC-DC converter, which provides a converter output voltage using a DC source voltage, is disclosed. The DC-DC converter includes converter control circuitry and a boosting charge pump. The converter control circuitry selects one of a first boost operating mode, a second boost operating mode, and a boost disabled mode based on the DC source voltage. During the boost disabled mode, the boosting charge pump presents a high impedance at a charge pump output of the boosting charge pump. Otherwise, the boosting charge pump provides a charge pump output voltage. During the first boost operating mode, a nominal value of the charge pump output voltage is equal to about one and one-half times the DC source voltage. During the second boost operating mode, a nominal value of the charge pump output voltage is equal to about two times the DC source voltage.
Abstract translation: 公开了一种使用DC源电压提供转换器输出电压的DC-DC转换器。 DC-DC转换器包括转换器控制电路和升压电荷泵。 转换器控制电路基于直流电源电压选择第一升压操作模式，第二升压操作模式和升压禁止模式中的一个。 在升压禁用模式期间，升压电荷泵在增压电荷泵的电荷泵输出处呈现高阻抗。 否则，升压电荷泵提供电荷泵输出电压。 在第一升压操作模式期间，电荷泵输出电压的标称值等于直流电源电压的大约一倍。 在第二升压操作模式期间，电荷泵输出电压的标称值等于直流电源电压的大约两倍。
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公开(公告)号：US20140152285A1
公开(公告)日：2014-06-05
申请号：US14096603
申请日：2013-12-04
Applicant: RF Micro Devices, Inc.
Inventor： Ashraf Rozek
IPC: H02M3/156
CPC classification number: H02M3/156 , H02M2001/0009 , H02M2001/0032 , Y02B70/16
Abstract: An average load current detector for a multi-mode switching converter is disclosed. The average load current detector includes a sense voltage generator that generates an average sense voltage that is proportional to an average load current delivered by the multi-mode switching converter. Also included is a duty voltage generator that generates an average duty voltage that is proportional to a duty cycle of a pulse width modulation (PWM) signal that controls switching of the multi-mode switching converter. Further included is a comparator adapted to output a detector signal that indicates an operational mode for the multi-mode switching converter to operate in for predetermined load current ranges. A controller receives the detector signal and in response maintains an efficient energy transfer from one supply voltage level to another by transitioning the multi-mode switching converter from the PWM mode to a pulse frequency modulation (PFM) mode or vice versa if necessary.
Abstract translation: 公开了一种用于多模切换转换器的平均负载电流检测器。 平均负载电流检测器包括感测电压发生器，其产生与由多模式开关转换器传送的平均负载电流成比例的平均感测电压。 还包括一个占空比电压发生器，其产生与控制多模开关转换器的开关的脉冲宽度调制（PWM）信号的占空比成比例的平均占空比电压。 还包括一个比较器，其适于输出检测器信号，该检测器信号指示多模转换器在预定的负载电流范围内工作的操作模式。 控制器接收检测器信号，并且作为响应，通过将多模式开关转换器从PWM模式转换到脉冲频率调制（PFM）模式，或者如果需要，反之亦然地保持从一个电源电压电平到另一个电源电压的有效能量传递。
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Patent Agency Ranking
公开(公告)号：US09590502B2
公开(公告)日：2017-03-07
申请号：US14096545
申请日：2013-12-04
Applicant: RF Micro Devices, Inc.
Inventor： Ashraf Rozek
CPC classification number: H02M3/156
Abstract: A regulated switching converter having improved closed loop settling time is disclosed. An error amplifier having a voltage reference input, a feedback input, and an error output is included. An output filter having a voltage output terminal coupled to the feedback input provides an output voltage sample to the error amplifier. A compensation network coupled between the feedback input and the error output of the error amplifier includes at least one capacitor and at least one switch that is communicatively coupled across the at least one capacitor. A controller is adapted to monitor current flowing through the switching output terminal. The controller has at least one switch control output coupled to a control input of the at least one switch to allow the controller to momentarily close the at least one switch to substantially discharge the at least one capacitor when a predetermined high current state is reached.
Abstract translation: 公开了一种具有改进的闭环稳定时间的稳压开关转换器。 包括具有电压基准输入，反馈输入和误差输出的误差放大器。 具有耦合到反馈输入的电压输出端的输出滤波器向误差放大器提供输出电压采样。 耦合在误差放大器的反馈输入和误差输出之间的补偿网络包括至少一个电容器和至少一个通信地耦合在至少一个电容器上的开关。 控制器适于监测流过开关输出端的电流。 所述控制器具有耦合到所述至少一个开关的控制输入的至少一个开关控制输出，以允许所述控制器在达到预定的高电流状态时暂时关闭所述至少一个开关以基本上放电所述至少一个电容器。
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公开(公告)号：US20170214418A1
公开(公告)日：2017-07-27
申请号：US15094250
申请日：2016-04-08
Applicant: RF Micro Devices, Inc.
Inventor： Ashraf Rozek , Jason Yorks
CPC classification number: H03F1/025 , G05F3/02 , H03F1/02 , H03F1/0277 , H03F3/189 , H03F3/193 , H03F3/24 , H03F2200/507 , H03G1/04 , H03H21/002 , H04L5/1461
Abstract: Circuitry, which includes a PA power supply and RF PA circuitry, is disclosed. The RF PA circuitry includes a group of RF PAs and a group of PA decoupling circuits. The group of RF PAs includes a first RF PA and a second RF PA. The group of PA decoupling circuits includes a first PA decoupling circuit and a second PA decoupling circuit. The PA power supply provides a first PA power supply output signal to at least one of the group of RF PAs and to at least one of the group of PA decoupling circuits. The first PA decoupling circuit is coupled across the first RF PA, is programmable, and at least partially decouples the first RF PA from other circuitry. The second PA decoupling circuit is coupled across the second RF PA and at least partially decouples the second RF PA from other circuitry.
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公开(公告)号：US10382071B2
公开(公告)日：2019-08-13
申请号：US15094250
申请日：2016-04-08
Applicant: RF Micro Devices, Inc.
Inventor： Ashraf Rozek , Jason Yorks
Abstract: Circuitry, which includes a PA power supply and RF PA circuitry, is disclosed. The RF PA circuitry includes a group of RF PAs and a group of PA decoupling circuits. The group of RF PAs includes a first RF PA and a second RF PA. The group of PA decoupling circuits includes a first PA decoupling circuit and a second PA decoupling circuit. The PA power supply provides a first PA power supply output signal to at least one of the group of RF PAs and to at least one of the group of PA decoupling circuits. The first PA decoupling circuit is coupled across the first RF PA, is programmable, and at least partially decouples the first RF PA from other circuitry. The second PA decoupling circuit is coupled across the second RF PA and at least partially decouples the second RF PA from other circuitry.
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公开(公告)号：US09374005B2
公开(公告)日：2016-06-21
申请号：US14458341
申请日：2014-08-13
Applicant: RF Micro Devices, Inc.
Inventor： Ashraf Rozek , Michael R. Kay
IPC: H03G3/20 , H02M3/158 , H03F1/02 , H03F3/19 , H03F3/21 , H02M3/07 , H03F3/00 , H03F3/195 , H03F3/24 , H02M1/00
CPC classification number: H02M3/158 , H02M3/07 , H02M2001/007 , H03F1/0227 , H03F3/005 , H03F3/19 , H03F3/195 , H03F3/21 , H03F3/245 , H03F2200/102 , H03F2200/451
Abstract: A DC-DC converter, which provides a converter output voltage using a DC source voltage, is disclosed. The DC-DC converter includes converter control circuitry and a boosting charge pump. The converter control circuitry selects one of a first boost operating mode, a second boost operating mode, and a boost disabled mode based on the DC source voltage. During the boost disabled mode, the boosting charge pump presents a high impedance at a charge pump output of the boosting charge pump. Otherwise, the boosting charge pump provides a charge pump output voltage. During the first boost operating mode, a nominal value of the charge pump output voltage is equal to about one and one-half times the DC source voltage. During the second boost operating mode, a nominal value of the charge pump output voltage is equal to about two times the DC source voltage.
Abstract translation: 公开了一种使用DC源电压提供转换器输出电压的DC-DC转换器。 DC-DC转换器包括转换器控制电路和升压电荷泵。 转换器控制电路基于直流电源电压选择第一升压操作模式，第二升压操作模式和升压禁止模式中的一个。 在升压禁用模式期间，升压电荷泵在增压电荷泵的电荷泵输出处呈现高阻抗。 否则，升压电荷泵提供电荷泵输出电压。 在第一升压操作模式期间，电荷泵输出电压的标称值等于直流电源电压的大约一倍。 在第二升压操作模式期间，电荷泵输出电压的标称值等于直流电源电压的大约两倍。
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公开(公告)号：US09362822B2
公开(公告)日：2016-06-07
申请号：US14096603
申请日：2013-12-04
Applicant: RF Micro Devices, Inc.
Inventor： Ashraf Rozek
CPC classification number: H02M3/156 , H02M2001/0009 , H02M2001/0032 , Y02B70/16
Abstract: An average load current detector for a multi-mode switching converter is disclosed. The average load current detector includes a sense voltage generator that generates an average sense voltage that is proportional to an average load current delivered by the multi-mode switching converter. Also included is a duty voltage generator that generates an average duty voltage that is proportional to a duty cycle of a pulse width modulation (PWM) signal that controls switching of the multi-mode switching converter. Further included is a comparator adapted to output a detector signal that indicates an operational mode for the multi-mode switching converter to operate in for predetermined load current ranges. A controller receives the detector signal and in response maintains an efficient energy transfer from one supply voltage level to another by transitioning the multi-mode switching converter from the PWM mode to a pulse frequency modulation (PFM) mode or vice versa if necessary.
Abstract translation: 公开了一种用于多模切换转换器的平均负载电流检测器。 平均负载电流检测器包括感测电压发生器，其产生与由多模式开关转换器传送的平均负载电流成比例的平均感测电压。 还包括一个占空比电压发生器，其产生与控制多模开关转换器的开关的脉冲宽度调制（PWM）信号的占空比成比例的平均占空比电压。 还包括一个比较器，其适于输出检测器信号，该检测器信号指示多模转换器在预定的负载电流范围内工作的操作模式。 控制器接收检测器信号，并且作为响应，通过将多模式开关转换器从PWM模式转换到脉冲频率调制（PFM）模式，或者如果需要，反之亦然地保持从一个电源电压电平到另一个电源电压的有效能量传递。
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