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The transfer functions of two compensators are
C1 = 10(s + 1) , C2 = s + 10 (s + 10) 10(s + 1)
Which one of the following statements is correct?
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- C1 is a lead compensator and C2 is a lag compensator
- C1 is a lag compensator and C2 is a lead compensator
- Both C1 and C2 are lead compensators
- Both C1 and C2 are lag compensators
- C1 is a lead compensator and C2 is a lag compensator
Correct Option: A
| C1 = | , C2 = | |||
| (s + 10) | 10(s + 1) |
Hence C1 is lead compensator and C2 is lag compensator.
Alternately
| ∠ φ for G = tan-1 ω - tan-1 | ||
| 10 |
| or ∠ φ for G = tan-1 | ω - tan-1 ω | |
| 10 |
Hence C1 is lead compensator and C2 is lag compensator.
