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1. 发明授权

US06396317B1 Digital voltage controlled oscillator 有权
标题翻译：数字压控振荡器
公开(公告)号：US06396317B1
公开(公告)日：2002-05-28
申请号：US09323185
申请日：1999-05-28
申请人： John Roller , Jon Drew Karnes
发明人： John Roller , Jon Drew Karnes
IPC分类号： H03B1900
CPC分类号： H02M7/493 , G06F1/0321 , G06F1/0342
摘要： A digital voltage controlled oscillator is disclosed. The digital voltage controlled oscillator includes an input for receiving input signals representative of a desired frequency. It also includes a pulse generator and a logic circuit. The logic circuit develops an oscillating signal having a predefined waveform and the desired frequency by controlling the energy contained in the pulses output by the pulse generator. The disclosed digital voltage controlled oscillator also includes a capacitor which is charged by the pulses to a voltage that generally varies in accordance with the predefined waveform and the desired frequency.
摘要翻译：公开了一种数字压控振荡器。数字压控振荡器包括用于接收表示期望频率的输入信号的输入端。它还包括一个脉冲发生器和一个逻辑电路。逻辑电路通过控制包含在由脉冲发生器输出的脉冲中的能量来形成具有预定波形和期望频率的振荡信号。所公开的数字压控振荡器还包括电容器，其被脉冲充电到通常根据预定波形和期望频率而变化的电压。

2. 发明授权

US6118680A Methods and apparatus for load sharing between parallel inverters in an AC power supply 有权
标题翻译：交流电源并联逆变器负载共享的方法和装置
公开(公告)号：US6118680A
公开(公告)日：2000-09-12
申请号：US322726
申请日：1999-05-28
申请人： Kenneth Andrew Wallace , Gueorgui I. Mantov , Jon Drew Karnes , John Roller
发明人： Kenneth Andrew Wallace , Gueorgui I. Mantov , Jon Drew Karnes , John Roller
IPC分类号： G06F1/03 , H02M7/48 , H02M7/493 , H02M7/00
CPC分类号： H02M7/493 , G06F1/0342
摘要： Methods and apparatus are disclosed for achieving load balance between parallel inverters in an AC power supply. Load balancing reduces undesirable cross conduction current between the parallel inverters. Load balancing and the resulting reduction in cross conduction current are achieved without the need for common control circuitry between the parallel inverters. Thus, the single-fault protection offered by redundant parallel inverters is not compromised by the disclosed load balancing techniques.
摘要翻译：公开了用于实现交流电源中的并联逆变器之间的负载平衡的方法和装置。负载平衡可降低并联逆变器之间的不必要的交叉传导电流。在不需要并联逆变器之间的公共控制电路的情况下，实现负载平衡和所导致的交叉传导电流的减小。因此，冗余并联逆变器提供的单故障保护不受所公开的负载均衡技术的影响。

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