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1. 发明授权

US5023801A Programmable - voltage - generator interface for decreasing the minimum voltage step 失效
标题翻译：可编程 - 电压 - 发生器接口，用于降低最小电压阶跃
公开(公告)号：US5023801A
公开(公告)日：1991-06-11
申请号：US323172
申请日：1989-03-15
申请人： Adriano Mattera , Roberto Fornari , Renato Magnanini , Carolo Paorici , Lucio Zanotti , Giovanni Zuccalli
发明人： Adriano Mattera , Roberto Fornari , Renato Magnanini , Carolo Paorici , Lucio Zanotti , Giovanni Zuccalli
IPC分类号： G05B19/02 , G05D23/19 , G06G7/14
CPC分类号： G06G7/14 , G05D23/1904
摘要： An interface circuit to the output of a programmable voltage ramp generator for decreasing the minimum voltage step of such a generator having two voltage channels and a minimum voltage step greater than 1 millivolt. The interface circuit receives an input from each of the two voltage channels (V.sub.2, V.sub.3), along with an inserted voltage (V.sub.1). The circuit includes a summing amplifier for (i) compressing the minimum voltage step from one voltage channel (V.sub.2) by a factor equal to or greater than such minimum voltage step, (ii) adding the voltage from the other channel (V.sub.3) to the compressed voltage, and (iii) subtracting the inserted voltage (V.sub.1) (or adding an inserted voltage which is negative). The inserted voltage (V.sub.1) is equal in magnitude to the maximum output value from the voltage channel that has the voltage compressed (V.sub.2). The output of the summing amplifier (V.sub.out) may be represented by:V.sub.out =(V.sub.3 /X)+(V.sub.2 /Y)+(V.sub.1 /Z)where X, Y, Z=attenuation or amplication factors. The interface circuit decreases the minimum voltage step at channel V.sub.2 by a factor Y down to a minimum voltage step of 1 millivolt or less.
摘要翻译：一个可编程电压斜坡发生器的输出的接口电路，用于减小具有两个电压通道的这种发电机的最小电压阶跃，以及大于1毫伏的最小电压步长。接口电路接收来自两个电压通道（V2，V3）中的每一个的输入以及插入的电压（V1）。该电路包括一个加法放大器，用于（i）将来自一个电压通道（V2）的最小电压阶跃压缩等于或大于该最小电压阶跃的因子，（ii）将来自另一个通道（V3）的电压加到压缩电压，以及（iii）减去插入电压（V1）（或加上为负的插入电压）。插入电压（V1）的大小与从压缩电压（V2）的电压通道的最大输出值相等。求和放大器（Vout）的输出可以由下式表示：Vout =（V3 / X）+（V2 / Y）+（V1 / Z）其中X，Y，Z =衰减或放大因子。接口电路将通道V2处的最小电压阶降低到一个1毫伏或更小的最小电压步长。

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