don johson

A detailed Summary of don johson

The objective of this lab is to introduce the Bipolar Junction Transistor (BJT). A BJT is a three terminal device composed of an emitter, base, and collector terminals. In this lab we will introduce two major types of BJT's : npn and pnp. The first, npn, has an n-type emitter, a p-type base and a n-type collector. On the other hand the pnp has a p-type emitter, a n-type base, and a p-type collector. Also the transistor consists of two major pn junctions, the emitter-base junction (EBJ) and the collector-base junction (CBJ). Depending on the bias condition of each of these junctions, there are different modes of operation. We will show that the basic principle of a BJT is the use of the voltage between two terminals on order to control the current in the third terminal.

In this part of the lab we will use the curve tracer to display the common-emitter BJT family of curves. We will see the i-v characteristics of Ic vs. Vce for steps of IB. The i-v characteristic showing Ic vs. Vce for different values of VBE are not linear. Thus we will see that the output resistance of the BJT change slightly with current. Then using the values of

2) Adjust dc supplies to +10 Volts and -10 Volts.

Some common words found in the essay are:
Volts IC, VB VC, Volts Measure, VA Ro, Attached Calculations, BJT Theory, Activity Diagram, BJT BJT, VCE=5 Volts, Data Table, vce =,  , ic =, ib =, = 6a, completed lab, output resistance, ib = 6a, ro =, 5 volts, = 700a, ve vb vc, volts ic =, volts point vce, point vce =,

Approximate Word count = 1375
Approximate Pages = 6 (250 words per page double spaced)

Category: Science

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