公开(公告)号：US20040251949A1

公开(公告)日：2004-12-16

申请号：US10459529

申请日：2003-06-12

Applicant: Winbond Electronics Corporation

Inventor： Bingxue Shi ,  Lu Chen ,  Chun Lu

IPC: G06G007/16 ,  G06F007/44

CPC classification number: G06G7/16 ,  G06N3/0635

Abstract: A current-mode synapse multiplier circuit multiplies each of a plurality of pulse signals with each of a corresponding plurality of weight signals. The synapse multiplier includes a plurality of first switches each coupled to a corresponding pulse signal and the corresponding weight signal. An integral circuit is coupled to the first switches to receive the weight signals that pass through the first switches and integrates the sum of the weight signals that pass through the first switches over a period of time. A voltage-to-current (V-I) converter is coupled to the integral circuit to convert the integral of the sum of the weight signals that pass through the first switches into a current signal, wherein the current signal represents the sum of the multiplication products of each pulse signal and the corresponding weight signal. An external reset signal is coupled to the synapse multiplier through a second switch to reset the synapse multiplier.

Abstract translation: 电流模式突触倍增器电路将多个脉冲信号中的每一个与相应的多个加权信号中的每一个相乘。 突触乘法器包括多个第一开关，每个第一开关耦合到对应的脉冲信号和相应的权重信号。 积分电路耦合到第一开关以接收通过第一开关的加权信号，并且在一段时间内积分通过第一开关的加权信号之和。 电压 - 电流（VI）转换器耦合到积分电路以将通过第一开关的权重信号之和的积分转换成电流信号，其中电流信号表示乘法乘积 每个脉冲信号和相应的权重信号。 外部复位信号通过第二开关耦合到突触倍增器，以复位突触倍增器。

公开(公告)号：US20040251941A1

公开(公告)日：2004-12-16

申请号：US10459538

申请日：2003-06-12

Applicant: Winbond Electronics Corporation

Inventor： Bingxue Shi ,  Lu Chen ,  Chun Lu

IPC: H03K009/08 ,  H03K007/08 ,  H03K005/04 ,  H03K003/017 ,  G06F015/18 ,  G06N003/067 ,  G06N003/063 ,  G06N003/06 ,  G06J001/00

CPC classification number: H03K7/08 ,  H03K5/023 ,  H03K5/2472

Abstract: 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.

Abstract translation: 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。