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1. 发明申请

US20120074844A1 SIGNAL GENERATION SYSTEM 有权
标题翻译：信号发生系统
公开(公告)号：US20120074844A1
公开(公告)日：2012-03-29
申请号：US13141938
申请日：2009-12-22
申请人： David Andrew York , Brian Halsall , Gregory Ian Chance
发明人： David Andrew York , Brian Halsall , Gregory Ian Chance
IPC分类号： H05H1/46 , H03H7/38
CPC分类号： H03H7/40
摘要： A signal generating system comprises a signal generator (14) for generating an electrical signal at a predetermined frequency; an impedance matching circuit (16), the electrical signal being supplied from the signal generator (14) via the impedance matching circuit (16) to a reactive load (10) in use; and an impedance matching control system (30) for detecting the electrical signal between the signal generator and the reactive load and for adjusting the impedance matching circuit (16) to achieve a predetermined condition. The impedance matching circuit control system (30) comprises a heterodyne circuit, and the system further comprises a heterodyne frequency generator (48) coupled to the signal generator (14) to generate a second, hetero-dyne frequency from the predetermined frequency from the signal generator. This second, heterodyne frequency is mixed with the detected signal to generate sum and difference signals. A filter (50, 52) passes the difference signal and a processor (Magnitude control; Phase control; 26; 28) responsive to the difference signal is used to adjust the impedance matching circuit (16) to achieve the predetermined condition.
摘要翻译：信号发生系统包括用于以预定频率产生电信号的信号发生器（14）阻抗匹配电路（16），电信号从信号发生器（14）通过阻抗匹配电路（16）提供给使用中的无功负载（10）; 以及阻抗匹配控制系统（30），用于检测信号发生器和无功负载之间的电信号，并用于调整阻抗匹配电路（16）以实现预定条件。阻抗匹配电路控制系统（30）包括外差电路，并且该系统还包括耦合到信号发生器（14）的外差频率发生器（48），以产生来自该信号的预定频率的第二异源晶体频率发电机。该第二个外差频率与检测信号混合，以产生和和差信号。滤波器（50,52）通过差分信号，并且响应于差分信号的处理器（幅度控制;相位控制; 26; 28）用于调整阻抗匹配电路（16）以实现预定条件。

2. 发明授权

US08643281B2 Signal generation system 有权
标题翻译：信号发生系统
公开(公告)号：US08643281B2
公开(公告)日：2014-02-04
申请号：US13141938
申请日：2009-12-22
申请人： Andrew David York , Brian Halsall , Gregory Ian Chance
发明人： Andrew David York , Brian Halsall , Gregory Ian Chance
IPC分类号： H05H1/46 , C23C16/00
CPC分类号： H03H7/40
摘要： A signal generating system comprises a signal generator (14) for generating an electrical signal at a predetermined frequency; an impedance matching circuit (16), the electrical signal being supplied from the signal generator (14) via the impedance matching circuit (16) to a reactive load (10) in use; and an impedance matching control system (30) for detecting the electrical signal between the signal generator and the reactive load and for adjusting the impedance matching circuit (16) to achieve a predetermined condition. The impedance matching circuit control system (30) comprises a heterodyne circuit, and the system further comprises a heterodyne frequency generator (48) coupled to the signal generator (14) to generate a second, heterodyne frequency from the predetermined frequency from the signal generator. This second, heterodyne frequency is mixed with the detected signal to generate sum and difference signals. A filter (50, 52) passes the difference signal and a processor (Magnitude control; Phase control; 26; 28) responsive to the difference signal is used to adjust the impedance matching circuit (16) to achieve the predetermined condition.
摘要翻译：信号发生系统包括用于以预定频率产生电信号的信号发生器（14）阻抗匹配电路（16），电信号从信号发生器（14）通过阻抗匹配电路（16）提供给使用中的无功负载（10）; 以及阻抗匹配控制系统（30），用于检测信号发生器和无功负载之间的电信号，并用于调整阻抗匹配电路（16）以实现预定条件。阻抗匹配电路控制系统（30）包括外差电路，并且系统还包括耦合到信号发生器（14）的外差频率发生器（48），以产生来自信号发生器的预定频率的第二外差频率。该第二个外差频率与检测信号混合，以产生和和差信号。滤波器（50,52）通过差分信号，并且响应于差分信号的处理器（幅度控制;相位控制; 26; 28）用于调整阻抗匹配电路（16）以实现预定条件。

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