{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

lesson 7 2010 transistor biasing circuits with activities

lesson 7 2010 transistor biasing circuits with activities -...

This preview shows pages 1–8. Sign up to view the full content.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Transistor Bias Circuits Lesson 7 Transistor Bias Circuits Objective: after learning this section, you will be able to: Explain dc bias; Derive the dc load line and the Q point; Explain linear operation and distortion; Analyze a base bias circuit and explain its limitations; Analyze and design an emitter bias circuit; Analyze and design a voltage-divider bias circuit; Analyze a collector-feedback bias circuit. DC Operating Point dc bias: establish fixed dc current and lead voltages such that the transistor operates in the active region. V BB sets I B dc load line: KVL around collector loop Q (quiescent) point (V CE , I C ) Ω 100 RB VBB 220 RC IC 10k IB IE 10V VCC R I V V I V V R C C C E C C C C E C C C + - = =- + Linear Operation Distortion distortion-free V CE : 0.05 V CC to 0.95 V CC Base Bias Analysis: KVL around base loop: Transistor property: KVL around collector loop: Q point: V CE , I C RB RC β VC C IB IC R I V V I B B BE CC B + = → R I V V V C C CE CC CE + = → I I I C DC B C = → β Limitations Collector current: Problem: I C varies with β DC ( affected by...
View Full Document

{[ snackBarMessage ]}

Page1 / 25

lesson 7 2010 transistor biasing circuits with activities -...

This preview shows document pages 1 - 8. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online