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Educational program: Mechanic – electrician Program title: Technical training II. c lass PowerPoint PPT Presentation


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Educational program: Mechanic – electrician Program title: Technical training II. c lass Two - stage amplifier Worked out: Bc. Chumchal Miroslav. Project technical subjects in English, CZ.1.07/1.3.09/04.0002 Co- finance by Europian social fund and by state budget of The Czech Republic

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Educational program: Mechanic – electrician Program title: Technical training II. c lass

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Educational program mechanic electrician program title technical training ii c lass

Educational program: Mechanic– electrician

Program title: Technical training

II. class

Two- stage amplifier

Worked out: Bc. ChumchalMiroslav

Project technical subjects in English, CZ.1.07/1.3.09/04.0002

Co- finance by Europian social fund and by state budget of The Czech Republic

.


Educational program mechanic electrician program title technical training ii c lass

Two- stage amplifier

  • Scheme of connection of two- stage amplifier

  • Description of two- stage amplifier

  • Design of printed circuit from the side of components and circuits

  • Components specification

  • Construction of two- stage amplifier

  • Students activities

  • Control questions


Educational program mechanic electrician program title technical training ii c lass

Connection scheme of two- stage amplifier


Educational program mechanic electrician program title technical training ii c lass

Description of amplifier and its construction

  • Ordering of voltage amplifiers in consecutive

  • Directly bounded two- stage amplifier

  • Stabilization of operating point of two- stage amplifier

  • Amplification of amplifier

  • Input voltage

  • Output voltage

  • Principles of construction of two- stage amplifier

  • Frequency attribute


Educational program mechanic electrician program title technical training ii c lass

Design of printed circuit from the side of components and circuits


Educational program mechanic electrician program title technical training ii c lass

Components specification


Educational program mechanic electrician program title technical training ii c lass

Instruction for construction of amplifier

Supply voltage is connected through filter member ( brum, oscillating )

Equipped by any kind of nf. transistors of BC type …

Printed circuit firstly equipped by R, than another components and by electrolytic condensers in the end .

Among condensers, resistances and printed circuit let a gap about 1 mm, influence of temperature on the printed circuit board.

Do not shorten terminal of the transistors.

Finally soldered resistance R2.


Educational program mechanic electrician program title technical training ii c lass

Entering to students- practical part

  • Realize connection of two- stage amplifier on the printed circuit board.

  • Individually design connection by the pattern from the side of the components and from the side of the circuit.

  • Take their measurement before soldering of components.

  • After soldered make recovery and measurement of amplifier.

  • Take measurement amplitude frequency characteristic of amplifier.


Educational program mechanic electrician program title technical training ii c lass

Control questions

  • Explain how is calculate amplification of amplifier ?

  • Calculate a gain of amplifier.

  • Compare volumes of two- stage amplifier with amplifiers SE, SB, SK and explain it.


Educational program mechanic electrician program title technical training ii c lass

Literature used

  • Poznáváme Elektroniku I.,Václav Malina, Vydalo nakladatelství KOPP,České Budějovice, 1996

  • www.google/Wikipedie - dvoustupňové zesilovače

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