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1. 发明授权

US5606295A Crystal oscillator circuits 失效
标题翻译：晶振电路
公开(公告)号：US5606295A
公开(公告)日：1997-02-25
申请号：US634088
申请日：1996-04-17
申请人： Harlan H. Ohara , Lee C. Yiu
发明人： Harlan H. Ohara , Lee C. Yiu
IPC分类号： H03B5/36
CPC分类号： H03B5/364
摘要： A one pin on-chip crystal oscillator circuit and a method of operating that oscillator are provided. The oscillator makes use of the gate-source capacitance of a MOS transistor to provide capacitance which would otherwise need to be provided by one of two oscillator capacitors. The MOS transistor is provided with a floating well by coupling its body to its source, so that the gate-source capacitance does not change substantially when the transistor is turned off. In another aspect of the invention, the MOS transistor is provided with a floating well using a parallel combination of MOS transistor elements, so as to minimize the coupling resistance of the MOS transistor to other elements of the circuit. In another aspect of the invention, the MOS transistor is coupled to a simulated inductive circuit for assuring that the impedance of the two passive oscillator components, normally capacitors, is inductive (will not oscillate) at frequencies near the fundamental frequency of the crystal and capacitive (will oscillate) at frequencies near the third harmonic of the crystal. In another aspect of the invention, the MOS transistor is coupled to a circuit for setting its transconductance by reference to an external component.
摘要翻译：提供了一个引脚片上晶体振荡器电路和操作该振荡器的方法。振荡器利用MOS晶体管的栅极 - 源极电容来提供另外需要由两个振荡电容之一提供的电容。 MOS晶体管通过将其本体耦合到其源极而设置有浮动阱，使得当晶体管截止时，栅极 - 源极电容不会发生显着变化。在本发明的另一方面中，MOS晶体管使用MOS晶体管元件的并联组合设置浮置阱，以使MOS晶体管与电路的其它元件的耦合电阻最小化。在本发明的另一方面，MOS晶体管耦合到模拟感应电路，用于确保两个无源振荡器部件（通常为电容器）的阻抗在晶体基极频率附近的电感（不会振荡）和电容（将振荡）在接近三次谐波的晶体。在本发明的另一方面，MOS晶体管通过参考外部元件耦合到用于设定其跨导的电路。

2. 发明授权

US08742674B2 Adaptive current regulation for solid state lighting 有权
标题翻译：固态照明的自适应电流调节
公开(公告)号：US08742674B2
公开(公告)日：2014-06-03
申请号：US12969316
申请日：2010-12-15
申请人： Anatoly Shteynberg , Harry Rodriguez , Bradley M. Lehman , Dongsheng Zhou , Harlan H. Ohara
发明人： Anatoly Shteynberg , Harry Rodriguez , Bradley M. Lehman , Dongsheng Zhou , Harlan H. Ohara
IPC分类号： H05B37/02
CPC分类号： H05B33/0815 , H05B33/0818 , H05B33/0845 , Y02B20/347
摘要： Exemplary embodiments provide an apparatus, system and method for power conversion to provide power to solid state lighting, and which may be coupled to a first switch, such as a dimmer switch. An exemplary system comprises: a switching power supply; solid state lighting; a first adaptive interface circuit to provide a resistive impedance to the first switch and conduct current from the first switch in a default mode; and a second adaptive interface circuit to create a resonant process. An exemplary apparatus comprises: a switching power supply; and an adaptive interface circuit comprising a resistive impedance coupled in series to a reactive impedance to conduct current from the first switch in a first current path in a default mode, and further comprising a second switch coupled to the reactive impedance to conduct current from the first switch in a second current path, with the adaptive interface circuit further damping oscillation when the first switch turns on.
摘要翻译：示例性实施例提供了一种用于功率转换以向固态照明提供电力的装置，系统和方法，并且其可以耦合到诸如调光器开关的第一开关。示例性系统包括：开关电源; 固态照明; 第一自适应接口电路，用于向第一开关提供电阻性阻抗，并以默认模式传导来自第一开关的电流; 以及第二自适应接口电路，以产生谐振过程。示例性装置包括：开关电源; 以及自适应接口电路，其包括串联耦合到无功阻抗的电阻阻抗，以在默认模式下在第一电流路径中传导来自第一开关的电流，并且还包括耦合到无功阻抗的第二开关，以将来自第一切换到第二电流路径，当第一开关导通时，自适应接口电路进一步阻尼振荡。

3. 发明申请

US20110309759A1 Adaptive Current Regulation for Solid State Lighting 有权
标题翻译：固态照明自适应电流调节
公开(公告)号：US20110309759A1
公开(公告)日：2011-12-22
申请号：US12969316
申请日：2010-12-15
申请人： Anatoly Shteynberg , Harry Rodriguez , Bradley M. Lehman , Dongsheng Zhou , Harlan H. Ohara
发明人： Anatoly Shteynberg , Harry Rodriguez , Bradley M. Lehman , Dongsheng Zhou , Harlan H. Ohara
IPC分类号： H05B37/02
CPC分类号： H05B33/0815 , H05B33/0818 , H05B33/0845 , Y02B20/347
摘要： Exemplary embodiments provide an apparatus, system and method for power conversion to provide power to solid state lighting, and which may be coupled to a first switch, such as a dimmer switch. An exemplary system comprises: a switching power supply; solid state lighting; a first adaptive interface circuit to provide a resistive impedance to the first switch and conduct current from the first switch in a default mode; and a second adaptive interface circuit to create a resonant process. An exemplary apparatus comprises: a switching power supply; and an adaptive interface circuit comprising a resistive impedance coupled in series to a reactive impedance to conduct current from the first switch in a first current path in a default mode, and further comprising a second switch coupled to the reactive impedance to conduct current from the first switch in a second current path, with the adaptive interface circuit further damping oscillation when the first switch turns on.
摘要翻译：示例性实施例提供了一种用于功率转换以向固态照明提供电力的装置，系统和方法，并且其可以耦合到诸如调光器开关的第一开关。示例性系统包括：开关电源; 固态照明; 第一自适应接口电路，用于向第一开关提供电阻性阻抗，并以默认模式传导来自第一开关的电流; 以及第二自适应接口电路，以产生谐振过程。示例性装置包括：开关电源; 以及自适应接口电路，其包括串联耦合到无功阻抗的电阻阻抗，以在默认模式下在第一电流路径中传导来自第一开关的电流，并且还包括耦合到无功阻抗的第二开关，以将来自第一切换到第二电流路径，当第一开关导通时，自适应接口电路进一步阻尼振荡。

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