公开(公告)号：US3930202A

公开(公告)日：1975-12-30

申请号：US36865773

申请日：1973-06-11

Applicant: HONEYWELL INC

Inventor： DEVER JOHN ALDEN

IPC: G06G7/28 ,  G06G7/26

CPC classification number: G06G7/28

Abstract: A function generator has two sets of biased rectifying circuits connected in parallel between an input and an output. For a steadily increasing input voltage, a first group of similarly poled rectifying circuits switch off in sequence. Subsequently, for a continuing increase in the input voltage, a second group of rectifying circuits poled oppositely to the first group switch on in sequence. Their outputs are summed, via an inverting circuit, to generate a function generator output characteristic (output voltage verses input voltage) of six segments, concave upwards. In addition, there is a non-rectifying circuit connection via a resistor from input to output of the function generator giving a straight-line characteristic which is added to the characteristic of the rectifying circuits to give a resultant characteristic which can provide a uniformly increasing slope with an increasing input signal. The central part of the output characteristic is arranged, by the addition of the straight-line characteristic, to pass to one side of the origin across the input equals zero line. Since the errors in any segment of a characteristic depend on how many of the rectifying circuits are switched on, the errors are therefor cumulative from the center of the output characteristic outwards in both directions, instead of from one end to the other, and the maximum errors are thus reduced.

Abstract translation: 函数发生器具有在输入和输出之间并联连接的两组偏置整流电路。 对于稳定增加的输入电压，第一组类似极化的整流电路依次关断。 随后，为了继续增加输入电压，与第一组相反地极化的第二组整流电路依次导通。 它们的输出通过反相电路相加，以产生六个段的函数发生器输出特性（输出电压与输入电压相对），向上凹。 另外，通过电阻从功率发生器的输入到输出有一个非整流电路连接，给出一个直线特性，该特性与整流电路的特性相加，得到一个可以提供均匀增加斜率的合成特性 输入信号增加。 通过添加直线特性，输出特性的中心部分通过输入等于零线传递到原点的一侧。 由于特性的任何段中的误差取决于多少整流电路被接通，因此误差是从两个方向的输出特性的中心向外累积，而不是从一端到另一端的最大值 因此减少错误。