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公开(公告)号：US09236795B2
公开(公告)日：2016-01-12
申请号：US14182702
申请日：2014-02-18
申请人： Perry H. Pelley , Michael G. Neaves
发明人： Perry H. Pelley , Michael G. Neaves
CPC分类号： H02M3/07 , H02M2001/0003
摘要： A charge pump system includes a comparator having a first input coupled to a first reference voltage, a second input coupled to a feedback signal and an output coupled to control operation of a voltage controlled oscillator. The feedback signal is coupled to an output of the charge pump system. An amplifier has a first input coupled to a second reference voltage, a second input coupled to the feedback signal, and an output coupled as input to the voltage controlled oscillator. A gain of the amplifier is lower than a gain of the comparator.
摘要翻译： 电荷泵系统包括具有耦合到第一参考电压的第一输入的比较器，耦合到反馈信号的第二输入和耦合到控制压控振荡器的操作的输出。 反馈信号耦合到电荷泵系统的输出端。 放大器具有耦合到第二参考电压的第一输入，耦合到反馈信号的第二输入和耦合到压控振荡器的输入的输出。 放大器的增益低于比较器的增益。
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公开(公告)号：US20150236584A1
公开(公告)日：2015-08-20
申请号：US14182702
申请日：2014-02-18
申请人： Perry H. Pelley , Michael G. Neaves
发明人： Perry H. Pelley , Michael G. Neaves
IPC分类号： H02M3/07
CPC分类号： H02M3/07 , H02M2001/0003
摘要： A charge pump system includes a comparator having a first input coupled to a first reference voltage, a second input coupled to a feedback signal and an output coupled to control operation of a voltage controlled oscillator. The feedback signal is coupled to an output of the charge pump system. An amplifier has a first input coupled to a second reference voltage, a second input coupled to the feedback signal, and an output coupled as input to the voltage controlled oscillator. A gain of the amplifier is lower than a gain of the comparator.
摘要翻译： 电荷泵系统包括具有耦合到第一参考电压的第一输入的比较器，耦合到反馈信号的第二输入和耦合到控制压控振荡器的操作的输出。 反馈信号耦合到电荷泵系统的输出端。 放大器具有耦合到第二参考电压的第一输入，耦合到反馈信号的第二输入和耦合到压控振荡器的输入的输出。 放大器的增益低于比较器的增益。
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公开(公告)号：US08917136B1
公开(公告)日：2014-12-23
申请号：US14151886
申请日：2014-01-10
摘要： A charge pump system includes a charge pump, a switchable impedance, a comparator, and a capacitor. The switchable impedance has an input coupled to the output of the charge pump. The comparator has a first input coupled to the output of the switchable impedance, a second input coupled to a reference, and an output coupled to the input of the charge pump. The capacitor has a first terminal coupled to the output of the charge pump and a second terminal coupled to the first input of the comparator. The switchable impedance causes a first impedance between the first and second terminals of the capacitor during a start-up operation of the charge pump system and a second impedance between the first and second terminals of the capacitor during a steady-state operation of the charge pump system, wherein the first impedance is lower than the second impedance.
摘要翻译： 电荷泵系统包括电荷泵，可切换阻抗，比较器和电容器。 可切换阻抗具有耦合到电荷泵的输出的输入。 比较器具有耦合到可切换阻抗的输出的第一输入，耦合到基准的第二输入和耦合到电荷泵的输入的输出。 电容器具有耦合到电荷泵的输出的第一端子和耦合到比较器的第一输入端的第二端子。 可切换阻抗在电荷泵系统的启动操作期间引起电容器的第一和第二端子之间的第一阻抗，以及在电荷泵的稳态操作期间电容器的第一和第二端子之间的第二阻抗 系统，其中第一阻抗低于第二阻抗。
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