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1. 发明授权

US4587497A Low-power low-harmonic transistor oscillator 失效
标题翻译：低功耗低谐波晶体管振荡器
公开(公告)号：US4587497A
公开(公告)日：1986-05-06
申请号：US685424
申请日：1984-12-24
申请人： Anthony F. Keller , Dennis F. Marvin
发明人： Anthony F. Keller , Dennis F. Marvin
IPC分类号： H03B5/32 , H03B5/36
CPC分类号： H03B5/32 , H03B2200/0012
摘要： A low current oscillator/buffer amplifier configuration is disclosed which provides a simple, inexpensive, low power oscillator with reduced harmonic output. Buffer 60 is coupled to the resonant tank circuit 58 of oscillator 50 by means of impedance transform network 70. This technique of tapping directly from the tank provides a buffered output signal having low harmonic content. Furthermore, impedance transform network 70 permits coupling feedback amplifier 52 to buffer amplifier 62 in a totem-pole amplifier stage configuration. This feature provides a significant current savings over conventional oscillator/buffer circuits. The instant invention is particularly well adapted for use as reference frequency oscillators in portable radio applications.
摘要翻译：公开了一种低电流振荡器/缓冲放大器配置，其提供具有减少的谐波输出的简单，便宜的低功率振荡器。缓冲器60通过阻抗变换网络70耦合到振荡器50的谐振回路58.这种直接从储罐提供的技术提供具有低谐波含量的缓冲输出信号。此外，阻抗变换网络70允许以图腾柱放大器级配置将反馈放大器52耦合到缓冲放大器62。与传统的振荡器/缓冲电路相比，该功能节省了大量的电流。本发明特别适用于便携式无线电应用中的参考频率振荡器。

2. 发明授权

US5493486A High efficiency compact low power voltage doubler circuit 失效
标题翻译：高效紧凑型低功率倍压电路
公开(公告)号：US5493486A
公开(公告)日：1996-02-20
申请号：US406281
申请日：1995-03-17
申请人： Lawrence E. Connell , Anthony F. Keller
发明人： Lawrence E. Connell , Anthony F. Keller
IPC分类号： H02M3/07 , H02M3/18
CPC分类号： H02M3/07
摘要： What is described is a high efficiency voltage doubler (100). The high efficiency voltage doubler (100), has a charge-pump capacitor (30), an inverter (18), a coupling capacitor (24), a complementary switch pair (16), a DC biasing circuit (102), a charging circuit (106), and an input circuit (108). This structure is adapted for use in an integrated circuit, and provides the advantage of maximizing voltage doubled power output and minimizing current consumption with a minimal number of components.
摘要翻译：描述的是高效率倍压器（100）。高效率倍压器（100）具有电荷泵电容器（30），反相器（18），耦合电容器（24），互补开关对（16），直流偏置电路（102），充电电路（106）和输入电路（108）。该结构适用于集成电路，并且具有最大化双倍电压功率输出并且以最小数量的部件最小化电流消耗的优点。

3. 发明授权

US5481229A Low power temperature compensated crystal oscillator 失效
标题翻译：低功耗温度补偿晶体振荡器
公开(公告)号：US5481229A
公开(公告)日：1996-01-02
申请号：US346452
申请日：1994-11-29
申请人： Lawrence E. Connell , Timothy J. Collins , Anthony F. Keller , Dennis F. Marvin , Michael L. Bushman
发明人： Lawrence E. Connell , Timothy J. Collins , Anthony F. Keller , Dennis F. Marvin , Michael L. Bushman
IPC分类号： H03L1/00 , H03B5/32 , H03L1/02
CPC分类号： H03L1/023
摘要： A temperature compensated crystal oscillator (10), has a crystal oscillator circuit (12), a voltage controlled reactance element (30), a temperature compensation network (50), and a programmable DC-DC converter network (60) having an output (62) connected to the voltage controlled reactance element (30), or the temperature compensation network (50) or both. The DC-DC converter network (60) provides the capability of operating over an extended voltage range, by increasing the supply voltage to a level necessary to operate the voltage controlled reactance element (30). Much of this structure is adapted for use in an integrated circuit, and provides the advantages of minimizing power and current consumption.
摘要翻译：温度补偿晶体振荡器（10）具有晶体振荡器电路（12），压控电抗元件（30），温度补偿网络（50）和可编程DC-DC转换器网络（60）连接到电压控制电抗元件（30）或温度补偿网络（50）或两者。 DC-DC转换器网络（60）通过将电源电压增加到操作电压控制电抗元件（30）所需的电平来提供在扩展电压范围上工作的能力。这种结构中的大部分适用于集成电路，并且提供最小化功率和电流消耗的优点。

4. 发明授权

US4254382A Crystal oscillator temperature compensating circuit 失效
标题翻译：晶振温度补偿电路
公开(公告)号：US4254382A
公开(公告)日：1981-03-03
申请号：US21524
申请日：1979-03-19
申请人： Anthony F. Keller , Albert V. Kraybill
发明人： Anthony F. Keller , Albert V. Kraybill
IPC分类号： H03B5/32 , H03L1/02 , H03B5/36 , H03B5/04
CPC分类号： H03L1/023
摘要： An integratable circuit is utilized for generating a temperature varying control voltage to be applied to a varactor diode to temperature compensate a crystal oscillator. The temperature compensating circuit has a middle range circuit for creating a substantially linear current versus temperature variation in a middle temperature range, a cold-temperature range circuit operative below a predetermined temperature for creating a non-linear current versus temperature variation a hot-temperature range circuit operative above a predetermined temperature for creating a non-linear current versus temperature variation and circuitry for summing said currents and generating a voltage proportional to the current sum. The control circuit, which requires a regulated supply voltage, uses a diode string and differential amplifiers to generate the desired current versus temperature variation.
摘要翻译：可集成电路用于产生施加到变容二极管的温度变化控制电压以对晶体振荡器进行温度补偿。温度补偿电路具有中间范围电路，用于在中间温度范围内产生基本上线性的电流对温度变化，在低于预定温度工作的冷温度范围电路，用于产生非线性电流对温度变化的热温度范围电路工作在预定温度以上以产生非线性电流对温度变化，以及用于对所述电流求和并产生与电流和成比例的电压的电路。需要调节电源电压的控制电路使用二极管串和差分放大器来产生所需的电流对温度变化。

5. 发明授权

US4001724A Variable high frequency crystal oscillator 失效
标题翻译：可变高频晶体振荡器
公开(公告)号：US4001724A
公开(公告)日：1977-01-04
申请号：US590245
申请日：1975-06-25
申请人： Anthony F. Keller
发明人： Anthony F. Keller
IPC分类号： H03B1/00 , H03B5/36 , H03C3/22
CPC分类号： H03B5/368 , H03B2200/0008 , H03B2200/0034 , H03B2200/004 , H03B2201/0208 , H03B5/362
摘要： A Colpitts type oscillator having a tank circuit including a crystal, a voltage variable capacitor and split capacitors with a first inductance including a coil connected in series with the crystal and a second inductance including a coil connected in parallel with the series connected coil and crystal and a second coil connected in series with one of the capacitors and the series combination connected in parallel with the first coil of the second inductance, said first and second inductances operating to neutralize the C.sub.o of the crystal, providing an impedance transformation between the crystal and the tank circuit, and improving the stability of the oscillator over a substantially increased warp range.

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