- #1

Dustinsfl

- 2,281

- 5

## Homework Statement

I am trying to write a block diagram as a transfer function.

## Homework Equations

## The Attempt at a Solution

Let ##G = \frac{1}{s}##, ##H = \frac{K}{Js + a}##, and ##L= K_f##. Then wouldn't the closed loop transfer function be written as

$$

\frac{\frac{HLG}{1+HL}}{1 + \frac{HLG}{1+HL}} = \frac{KK_f}{s^2J + (KK_f + a)s + KK_f}

$$

I only ask because the book has it as

$$

\frac{K}{s^2J + (KK_f + a)s + K}

$$

and I don't see how that was obtained.

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