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61. 发明授权

US07035835B2 High-precision current-mode pulse-width-modulation circuit 有权
标题翻译：高精度电流模式脉宽调制电路
公开(公告)号：US07035835B2
公开(公告)日：2006-04-25
申请号：US10459538
申请日：2003-06-12
申请人： Bingxue Shi , Lu Chen , Chun Lu
发明人： Bingxue Shi , Lu Chen , Chun Lu
IPC分类号： G06F15/18
CPC分类号： H03K7/08 , H03K5/023 , H03K5/2472
摘要： A current-mode pulse-width-modulation (PWM) circuit converts analog current signals into pulse signals. The PWM circuit includes a first I-V converter and one or more second I-V converters, each of the one or more second I-V converters being coupled to one of the current signals. Each of the first and second I-V converters is also coupled to a current generator which generates a current that linearly changes with time. For each of the first and second I-V converters, when a polarity of the input current thereof changes, an output changes between a high voltage level and a low voltage level. A logic circuit is coupled to the first and each second I-V converter to obtain a pulse signal that has a pulse width linearly proportional to the current level of the respective current signal.
摘要翻译：电流模式脉宽调制（PWM）电路将模拟电流信号转换为脉冲信号。 PWM电路包括第一I-V转换器和一个或多个第二I-V转换器，一个或多个第二I-V转换器中的每一个耦合到电流信号之一。第一和第二I-V转换器中的每一个还耦合到电流发生器，其产生随时间线性变化的电流。对于第一和第二I-V转换器中的每一个，当其输入电流的极性改变时，输出在高电压电平和低电压电平之间变化。逻辑电路耦合到第一和第二I-V转换器，以获得具有与各个电流信号的电流电平成线性比例的脉冲宽度的脉冲信号。

62. 发明授权

US06809558B1 Push-pull output neuron circuit 有权
标题翻译：推挽输出神经元电路
公开(公告)号：US06809558B1
公开(公告)日：2004-10-26
申请号：US10446669
申请日：2003-05-29
申请人： Bingxue Shi , Chun Lu , Lu Chen
发明人： Bingxue Shi , Chun Lu , Lu Chen
IPC分类号： H02M1100
CPC分类号： G06N3/0481 , G06N3/063
摘要： A neuron circuit generates a sigmoid transfer function and its derivative. The neuron circuit comprises an I-V converter that converts a current input signal into a voltage signal, a first output circuit having a first differential amplifier with a first current mirror as an active load, and a second output circuit having a second differential amplifier with a second current mirror as an active load, both the first and second output circuit being coupled to the voltage signal. While an output of one of the first and second output circuits is a sigmoid function of the current input, a difference between the two outputs of the two output circuits is a derivative of the sigmoid function.
摘要翻译：神经元电路产生S形传递函数及其导数。神经元电路包括将电流输入信号转换为电压信号的IV转换器，具有第一电流镜作为有效负载的第一差分放大器的第一输出电路和具有第二差分放大器的第二输出电路，电流镜作为有效负载，第一和第二输出电路都耦合到电压信号。虽然第一和第二输出电路之一的输出是电流输入的S形函数，但是两个输出电路的两个输出之间的差是S形函数的导数。

63. 发明授权

US06430070B1 Synchronous PWM switching regulator system 有权
标题翻译：同步PWM开关稳压器系统
公开(公告)号：US06430070B1
公开(公告)日：2002-08-06
申请号：US09863917
申请日：2001-05-23
申请人： Bingxue Shi , Lu Chen , Chun Lu
发明人： Bingxue Shi , Lu Chen , Chun Lu
IPC分类号： H02M542
CPC分类号： H02M1/36 , H02M1/32 , H02M3/1588 , Y02B70/1466
摘要： A synchronous pulse width modulation (PWM) switching regulator that is suitable for high-performance CPUs. A DAC converts a plurality of inputted digital signal into analog signal that indicates the desired voltage. A circuit creates the necessary PWM signal to control a pair of drivers and their associated switches to convert a first inputted voltage to a second desired voltage. A soft-start circuit ensures that the startup voltage does not overshoot an expected level. Over-current and over-voltage protection circuits ensure that the circuit will not damage any circuits that power is supplied to.
摘要翻译：同步脉宽调制（PWM）开关稳压器，适用于高性能CPU。 DAC将多个输入的数字信号转换为指示期望电压的模拟信号。电路产生必要的PWM信号以控制一对驱动器及其相关联的开关，以将第一输入电压转换为第二所需电压。软启动电路确保启动电压不超过预期的电平。过电流和过压保护电路确保电路不会损坏供电的任何电路。

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