CHAPTER 10 & 11

 FIGURE 10.37 ; 10.39 ; 10.40

FIG 10.37

10.37

FIG 10.39

10.39

FIG 10.40

10.40

Penjelasan:

10.37

factor. Using the equivalent representation shown in Fig. 10.37 b, we can express the out put voltage in terms of the inputs as

In other words, each input adds a voltage to the output multiplied by its separate constant-gain multiplier. If more inputs are used, they each add an additional component to the output.

10.39 dan 10.40

As an example, consider an input voltage V1 = 1 V to the integrator circuit of Fig. 10.39 a. The scale factor of 1/ RC is

 so that the output is a negative ramp voltage as shown in Fig. 10.39 b. If the scale factor is changed by making R = 100 k , for example, then

 and the output is then a steeper ramp voltage, as shown in Fig. 10.39 c. More than one input may be applied to an integrator, as shown in Fig. 10.40 , with the resulting operation given by 
 

An example of a summing integrator as used in an analog computer is given in Fig. 10.40 . The actual circuit is shown with input resistors and feedback capacitor, whereas the analog computer representation indicates only the scale factor for each input.  

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