Kafedra: Elektronika va radiotexnika Fan: Elektronika va sxemalar 1 labaratoriya ishi №13

1- rasm. Umumiy istok ulanish sxemasidagi maydoniy tranzistorning uzatishva chiqish xarakteristikalar oilasini o‘lchash prinsipial sxemasi NI Multisim dasturiy muhitida yig‘ilgan holati

1. 
   UI ulanish sxemasidagi MT uzatish va chiqish xarakteristikalar oilasini o‘chash:
   

1 – jadval.

Usi, V		0	0,5	1	1,5	2	2,5	3	3,5	4
Uzi=0V		0	0,665	1,327	1,985	2,639	3,289	3,935	4,577	5,213
Uzi=-0,5V		0	0,646	1,287	1,923	2,554	3,179	3,797	4,408	5,01
Uzi=-1V		0	0,622	1,237	1,844	2,443	3,032	3,61	4,176	4,727
Uzi=-1,5V		0	0,59	1,17	1,737	2,29	2,826	3,341	3,829	4,284
Uzi=-2V		0	0,547	1,076	1,583	2,062	2,503	2,891	3,195	3,335
Uzi=-2,5V		0	0,485	0,934	1,334	1,66	1,846	1,857	1,863	1,87

Usi, V			5		6		7		8		9		10		11		12
Uzi=0V		6,468		7,696		8,892		10,04		11,14		12,15		13,03		13,63
Uzi=-0,5V		6,187		7,315		8,377		9,339		10,12		10,43		10,5		10,56
Uzi=-1V		5,772		6,707		7,431		7,638		7,686		7,735		7,783		7,833
Uzi=-1,5V		5,029		5,267		5,301		5,335		5,369		5,404		5,437		5,471
Uzi=-2V		3,357		3,379		3,4		3,422		3,443		3,466		3,489		3,51
Uzi=-2,5V		1,882		1,894		1,906		1,918		1,93		1,942		1,956		1,968

2. 
   Olingan natijalarga ishlov berish:
   

1-jadval asosida olingan o‘lchash natijalari asosida uzatish xarakteristikasi oilasi (ya’ni U_SI=const bo‘lganda, I_S=f(U_ZI)) va chiqish xarakteristikalari oilasi (ya’ni U_ZI=const bo‘lganda, I_S=f(U_SI)) bog‘liklik grafiklar chiziladi.

− Xarakteristika tigkligini hisoblash:

U = const bo‘lganda, ; bunda, va

SI

;

U_SI =2V bo‘lganda, ;

; .

− Ichki (differensial) qarshilikni hisoblash:

U = const bo‘lganda, ;

ZI

U_ZI =-0,5V bo‘lganda,

;

;

− Kuchlanish bo‘yicha kuchaytirish koeffitsientini hisoblash:

I =const bo‘lganda, 𝜇 = ^{∆𝑈𝑆𝐼} yoki   SR ;

S i ∆𝑈𝑍𝐼

  SR_i =789,26*0,0011=0,868;

XULOSA

Biz ushbu labaratoriya ishida tranzistor ulashni uni ishlatishni bazi parametrlarini o`rgandik .Labaratoriyadan shuni xulosa qilishimiz mumkunki Uzi ortib borgani sari

Is o`zgarishi kamayib borar ekan Usi ortib borgan sari ham

Is o`zgarishi kamayib borar ekan