Circuits to Memorize for ECE Board Exam

Zener Regulator

Series-positive Clipper

Series-negative Clipper

Parallel-positive Clipper

Parallel-negative Clipper

Negative Clamper

Positive Clamper

half-wave voltage doubler

Another way is reverse all capacitor polarities and reverse all diode forward bias directions. At the input, a transformer may also be used

Full-wave Voltage Doubler

At the input, a transformer may also be used

Voltage Multiplier

At third diode, voltage tripler. At fourth, voltage quadrupler.

Half-wave Diode Rectifier

Full-wave Diode Rectifier (Center tapped transformer)

Full-wave Diode Rectifier (Bridge)

Fixed Bias

Emitter-bias

Voltage-divider bias

VDB

Clapp Oscillator

Colpitts oscillator

Hartley Oscillator

Armstrong oscillator

Crystal Oscillator

Low Pass Filter

High Pass Filter

band pass filter

tunnel diode

clipper

integrator

differentiator

half-wave rectifier

Full wave rectifier

positive logic and gate

OTA

peak detector

varicap

This is an equivalent circuit for the ________ diode.

Current to voltage converter

a constant-current source

Refer to the given figure. This circuit is a setup for:

Schottky

This is an approximate equivalent circuit for the ________ diode.

negative output voltage

an antilog amplifier

instrumentation amplifier

Monostable multivibrator

The circuit in the figure has two CMOS NOR gates. This circuit functions as a:

Wien-bridge oscillator

Low-Pass Filter

Schmitt trigger

Gray to binary

Low pass filter