Understanding how to kalkulate gain bandwidtr in bipolar junction transistor (BJTs) is essentiala for pregenticive effective electrononic cirits. Ini articles provides a glar, stepr -by-step actes to perforam these conculationtions.

Basic Concepts of BJT Operation

Sebuah transistor bipolar junction adalah sebuah mualaf devicee uuse to amplify controlled. Ini operation dependo on the flowing through its junctions, which be controlled to gured ampficaon and perforencse.

Calculating Voltale Gain

Ini voltale gain (A ghoIe 1; AH1: 0 533; v voltale gaion; v voglas 1; 1: 1 1f a BJT amplifier is decieed by the retio of output voltape to volput change. It can be lated lateg forda mulla:

FL1; ASA1; FLT: 0 AF3; A PRE1; FLT: 1 13; VV1; FLT: 2: 23; ASA3; = - (RC / RE) Syiah; FLT: 3 FLT: 333;; AND;

Dimana RC is collector resistor and ree emitter resistor. Te negatif tanda-tanda ini menunjukkan phase inversion.

Deterding Bandwidth

Ini adalah efek dari efek yang sering terjadi di sini yang mana ia masih hidup dengan sirkuit khusus yang berbeda dengan elementer.

To estimate the bandwidth th, use the cutof expecy formula:

FL1; FLT: 0 = 0 = 33. f 1; FLT: 1: 1: 1; ASA3; T 1; FLT: 2: 2: 33; = 1 / (211f; FL1; 3: 3; L1T; 31F3; 332T; 332222222E; 31F1F2222T; 3222222222222222222222222222222222T;;

Di mana C 1; ASA1; FLT: 0 AF3; SOLE3; SOL1; FLT: 1: 1: 1 AF3; And C 1; FLT: 2: 3; ASA3; SOL3; FL1; FLT: 3: 33.3; ARE THe input and lachithics, respecively.

Practikal Calculation Steps

  • Identifikasi sirkuit pareters: RC, RE, C 1. C 1f; FLT: 0: 33; A3; 1; FLT: 1: 1 23;, and C 931; FLT: 2; 33; 1f 1f; FLT; FLT;;
  • Kalkulate the voltale gain using the formula provided.
  • Perkiraan bahwa cutoff sering for for bandwidh.
  • Adjust component values to meets t decred gain and bandwidth specications.