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teknik otomasi industri smk jilid 1

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UQ<br />

E<br />

0<br />

ij E<br />

t<br />

Rv<br />

I BV<br />

R<br />

ic<br />

Gambar 2.123(a) Pengendalian Sinyal Besar<br />

Terjadilah untuk tegangan sinyal Δ UR = - Δ UCE<br />

Pertengahan Rv terdapat arus tetap ⇒ titik kerja<br />

Uce =1,5V<br />

IB<br />

karakteristik dasar<br />

untuk pengendalian<br />

luar<br />

[ μA ]<br />

250<br />

150<br />

Uce =15V<br />

50<br />

I BV v<br />

Ic<br />

t<br />

U R<br />

U CE<br />

ij A<br />

U A<br />

t<br />

Titik kerja<br />

250 μA<br />

200 μ A<br />

Garis kerja<br />

5 10 15 20<br />

150 μ A<br />

100 μ A<br />

50 μ A<br />

Sinyal keluaran cacat<br />

U<br />

A<br />

Gambar 2.123(b) Gambar Posisi Titik Kerja - Operasi Penguat<br />

U A<br />

177<br />

U<br />

[ V ]

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