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PENGAYUN

PENGAYUN. Masukan at. Keluaran au. PENGAYUN. # menukarkan isyarat AT kepada AU tanpa ada sumber luar # menjanakan sebarang nilai frekuensi yang diperlukan oleh litar. PENGUAT. keluaran. LITAR PENJANAAN FREKUENSI. SUAPBALIK. Rajah blok asas Pengayun. PENGUAT. PENGAYUN COLPITTS.

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PENGAYUN

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  1. PENGAYUN Masukan at Keluaran au PENGAYUN # menukarkan isyarat AT kepada AU tanpa ada sumber luar # menjanakan sebarang nilai frekuensi yang diperlukan oleh litar.

  2. PENGUAT keluaran LITAR PENJANAAN FREKUENSI SUAPBALIK Rajah blok asas Pengayun

  3. PENGUAT PENGAYUN COLPITTS RANGKAIAN SUABALIK PENENTU FREK

  4. PENGAYUN HARTELY PENGUAT RANG. SUABALIK RANG. PENENTU FREK

  5. PENGAYUN ARMSTRONG PENGUAT L2 PEN. FREK SUABALIK

  6. : Litar Setara Elektrik SIMBOL PENGAYUN HABLUR

  7. Ia mempunyai dua frekuensi salun. Frekuensi yang pertama dihasilkan oleh litar siri R - L - C . Frekuensi kedua berlaku apabila komponen siri sama dengan h h h reaktan, C . m z Salun Selari Salun Siri f f f 1 2

  8. PENGAYUN ANJAKAN FASA

  9. PENGAYUN GELOMBANG SEGIEMPAT ( MULTIVIBRATOR) A B C D

  10. Q1 SATURATED Q2 SATURATED

  11. An astable multivibrator is also known as a FREE-RUNNING MULTIVIBRATOR. It is called free-running because it alternates between two different output voltage levels during the time it is on. The output remains at each voltage level for a definite period of time. If you looked at this output on an oscilloscope, you would see continuous square or rectangular waveforms. The astable multivibrator has two outputs, but NO inputs.

  12. BEKALAN DIKENAKAN , ARUS MENGALIR KE Q1 DAN Q2 .ANGGAP Q1 AKAN BERKENDALI DAHULU DARIPADA Q2 • Q1 PADA TAKAT TEPU TRANSISTOR BERKENDALI MANAKALA Q2 TAKAT POTONG.( TAK BERKENDALI). • C1 AKAN MENGECAS MELALUI R2 KEBUMI SEHINGGA VOLTAN PADA TITIK B MENJADI POSITIF. • VOLTAN POSITIF TITIK B AKAN MENYEBABKAN TAPAK Q2 MENDAPAT PINCANG DEPAN, Q2 BERKENDALI DAN TITIK C MENJADI 0 V DISEBABKAN C2 MENYAHCAS. Q1 TIDAK BERKENDALI. • SEMASA Q2 BERKENDALI C2 MENGECAS MELALUI R3 SEHINGGA VOLTAN PADA TITIK C MENJADI POSITIF. • VOLTAN TITIK C POSITIF MAKA TAPAK Q1 DIPINCANG DEPAN. Q1 BERKENDALI. VOLTAN TITIK B MENJADI 0V ,C1 MENYAHCAS. • KEADAAN SILIH GANTI

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