外文翻譯--運(yùn)算放大器的原理和應(yīng)用-其他專業(yè)(編輯修改稿)
2025-02-24 00:37 本頁(yè)面
【文章內(nèi)容簡(jiǎn)介】 it is actually pleted: two of the input differential signal operation. 5 2. And the difference circuit: And poor use of the circuit is a relatively wide range of circuits, where the three circuits on the move: Reverse summation circuit to sum the same circuit, and differential circuits. (1) reverse summation circuit and summation circuit in the same direction: Only difference is that the input signal by adding a reversedphase input with input phase difference, reversesum circuit in Figure 6, with the summation circuit in Figure 7. By Kirchhoff39。s current law, reverse summation circuit output voltage and input voltage relationship, UO = )(332211 RURURUR IIIF ??? Figure 5 the proportion of the circuit differential circuit Figure 6 Reverse summation circuit schematics Figure 7 with the circuit diagrams and circuit 6 With the summation circuit output voltage and the relationship between the input voltage as follows: UO = )( 321CIBIAIF RURURUR ?? Although the parison between the two similar, but different, the reverse sum of the characteristics of the circuit with the same RPcircuit ratio. It can be very convenient for the input resistance of a circuit to change the relationship between the proportion of the circuit without affecting the relationship between the proportion of other routes. And with the application to the summation circuit is not very extensive, mainly because of its better regulation of RPsum circuit, and its large monmode input signal. (2) and the difference circuit: Its circuit diagram is shown in Figure 8. The function of this circuit is Ui1, Ui2 carried out by RPsummation of Ui3, Ui4 sum to the same direction, and then superimposed the results obtained and the poor, and his relationship between input and output voltage as follows: UO = )(22114433 RURURURUR IIIIF ??? Figure 8 and the differential circuit schematics As the use of an integrated circuit operational amplifier, and its calculation and the circuit resistance is not easy to adjust, so we used the position of the secondary 7 operational amplifier integrated circuit and poor. Its circuit diagram as shown in Figure 9, it39。s the relationship between input and output voltage is: UO = )(22114433 RURURURUR IIIIF ??? Figure 9 posed of two integrated operational amplifier circuit schematics and poor Its former level after the level does not affect (in the ideal of integrated operational amplifier), which is very convenient calculation. 3. Integral and differential circuit: The above ponents used are basically resistive element, if one side of the resistor capacitor replaced, then the results will bee integral circuits and differential circuits. (1) integral circuit: The circuit shown in figure 10, it can achieve integration and production of puting, such as triangular waveform. Integral operation is: the output voltage a
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