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1. 发明授权

US06727736B1 Voltage control oscillator noise reduction technique and method thereof 有权
标题翻译：压控振荡器降噪技术及其方法
公开(公告)号：US06727736B1
公开(公告)日：2004-04-27
申请号：US10226549
申请日：2002-08-23
申请人： Randy Tsang , Shuran Wei
发明人： Randy Tsang , Shuran Wei
IPC分类号： H03L406
CPC分类号： H03L7/0891 , H03L7/093 , H03L7/099
摘要： A phase locked loop including a loop filter to generate a control voltage as a function of an input signal and a. reference voltage. A voltage controlled oscillator (VCO) coupled to the loop filter, includes a varactor having terminals. In response to the control voltage, the VCO generates a periodic output signal having a frequency that is a function of the varactor and the control voltage. The VCO duplicates noise appearing on one of the varactor terminals to another of the varactor terminals so that noise in the periodic output signal is reduced.
摘要翻译：一种锁相环，包括一个环路滤波器，以产生一个作为输入信号的函数的控制电压，参考电压。耦合到环路滤波器的压控振荡器（VCO）包括具有端子的变容二极管。响应于控制电压，VCO产生具有作为变容二极管和控制电压的函数的频率的周期性输出信号。 VCO将出现在其中一个变容二极管端子上的噪声复制到另一个变容二极管端子，使得周期性输出信号中的噪声减小。

2. 发明授权

US06259287B1 Regulated voltage supply with low voltage inhibit reset circuit 失效
标题翻译：稳压电压低电压禁止复位电路
公开(公告)号：US06259287B1
公开(公告)日：2001-07-10
申请号：US09620141
申请日：2000-07-20
申请人： Harold Ryan Macks
发明人： Harold Ryan Macks
IPC分类号： H03L406
CPC分类号： G05F1/575 , H03K17/22 , H03K17/30
摘要： A regulated voltage supply contains a zener diode controlled by a constant current generator to maintain the zener voltage at a constant level regardless of the swings of the voltage input to the diode. A current amplifier responds to the constant current generator to maintain the output voltage of the regulated voltage supply at the value of the zener voltage regardless of the demands of the load. A low voltage inhibit circuit responds to the magnitude of the input voltage and the magnitude of the voltage on the zener diode to generate a binary voltage signal for inhibiting the operation of a load such as a microcomputer when the voltage regulator is below the zener voltage level and the input is below the desired voltage.
摘要翻译：稳压电源包含由恒定电流发生器控制的齐纳二极管，以将齐纳电压保持在恒定电平，而不管输入到二极管的电压的波动。电流放大器响应于恒定电流发生器，以将稳压电源的输出电压维持在齐纳电压的值，而不管负载的要求如何。低压抑制电路响应输入电压的大小和齐纳二极管上的电压的大小，以产生二进制电压信号，用于当电压调节器低于齐纳电压电平时禁止诸如微型计算机的负载的操作并且输入低于期望的电压。

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