Transistor Feedback Circuits Unit 1 – Introduction to the Circuit Board
UNIT 1 – INTRODUCTION TO THE CIRCUIT BOARD
UNIT OBJECTIVE
At the completion of this unit, you will be able to locate and identify the major circuit blocks on
the TRANSISTOR FEEDBACK CIRCUITS circuit board.
UNIT FUNDAMENTALS
The TRANSISTOR FEEDBACK CIRCUITS circuit board consists of 4 circuit blocks:
SERIES FEEDBACK/SHUNT FEEDBACK circuit block
MULTISTAGE SHUNT-SERIES FEEDBACK circuit block
MULTISTAGE SERIES-SHUNT FEEDBACK circuit block
DIFFERENTIAL AMPLIFIER circuit block.
A GENERATOR BUFFER circuit and an ATTENUATOR circuit are also included on the
circuit board. Three of the circuit blocks introduce various feedback methods. The fourth circuit
block is a differential amplifier.
The attenuator can be used to attenuate or reduce the magnitude of an input signal.