Pulse Techniques ELEX 3310

R-C CIRCUITS

• Analyze the effect resistor/capacitor networks have on waveforms and design networks for specific results.
• Calculate and measure charge and discharge times in R-C circuits using suitable oscilloscope triggering techniques.
• Define waveform definitions such as rise and fall times, and understand how circuit components can affect them.
• Predict waveforms associated with R-C differentiator and integrator circuits.

CLIPPER AND CLAMP CIRCUITS

• Predict output waveforms for given input waveforms in Clipper and Clamp circuits and design a Clipper or Clamp circuit for a given output waveform.
• Analyze clipper and clamp circuit operation and sketch the output waveforms.
• Design clipper and clamp circuits for a given output waveform.
• Build clipper and clamp circuits in the lab and observe their effect on input waveforms. Compare measured results with predictions.

THE TRANSISTOR SWITCH

• Describe the factors that affect transistor switching speed and design transistor circuits to switch at maximum speed.
• Explain saturation and recognize factors such as storage time, delay time, turn on and turn off times.
• Describe factors effecting switching speed and speed-up techniques.
• Identify sink and source loading configurations.
• Sketch the output waveform of a transistor switch with a capacitive load and calculate the capacitor's effect.
• Build and test a transistor switch circuit in the lab and observe the factors affecting its performance including the effect of a capacitive load.
• Design transistor switching circuits to satisfy a specified load.
• Demonstrate correct scope triggering techniques in the laboratory.

RAMP GENERATORS

• Analyze and design Ramp generator circuits for a given output waveform.
• Explain how a capacitor can charge linearly using a constant current source.
• Design a one-transistor current source for use in a ramp generator.
• Analyze bootstrap feedback in a linear ramp generator.
• Understand the role of a ramp generator in an oscilloscope.

CMOS AND MOSFET

• Describe how CMOS and MOSFET characteristics affect operating parameters such as switching speed and power consumption and design circuits using these components.
• Explain FET operation and define terms such as enhancement, depletion, N channel, Drain current, etc.
• Design, construct and test simple logic gates such as NOR, NAND, etc. using IC mosfets.
• Explain the characteristics of CMOS including switching speed, switching thresholds, active pullup and pulldown, propagation delay and power consumption.

SCHMITT TRIGGERS and VOLTAGE COMPARATORS

• Analyze and design Schmitt Trigger and voltage comparator circuits for a given set of parameters.
• Design, analyze, build and test a two transistor Schmitt Trigger for given Upper and Lower Threshold points.
• Design, analyze, construct and test Schmitt Trigger circuits using CMOS Buffers with feedback to create specified Hysteresis.
• Design and build a Schmitt trigger oscillator with specified frequency and duty cycle.
• Analyze a basic Voltage Comparator circuit using an Operational Amplifier.
• Analyze and design Symmetrical, ASymmetrical and Window Voltage Comparator configurations for a given set of parameters.

MONOSTABLE MULTIVIBRATORS (MMV)

• Analyze and design discrete and integrated Monostables for given input trigger and output pulses.
• Explain the function and operation of a CMOS NOR gate MMV, and calculate its timing.
• Design, analyze, construct, test and troubleshoot various monostable multivibrator circuits.
• Use two MMVs to create a delayed pulse.

ASTABLE CIRCUITS (OSCILLATORS)

• Analyze and design Astable circuits for a given output frequency and duty cycle.
• Explain the function and operation of a CMOS gate astable and calculate the output frequency.
• Design, analyze, construct, test and troubleshoot CMOS astables with a specified duty cycle and output frequency.

555 TIMER

• Analyze and design 555 timer circuits in a variety of applications.
• Explain the operation of the 555 Timer internal circuitry in Monostable and Astable modes of operation.
• Explain how the 555 Timer output frequency can be changed by the use of the Control pin.
• Design, analyze, build and test 555 Timer circuits in various applications.

DC TO DC CONVERTERS

• Design and analyze Voltage Doubler and Boost Switch Regulator circuits for a given set of parameters.
• Analyze and construct voltage doubler and tripler circuits and predict output voltage levels.
• Gain an understanding of Load Regulation by analyzing, building and testing a Flyback Regulator and predicting output voltage level, ripple frequency and amplitude for various load conditions.

MODULATION

• Explain Amplitude Modulation, Frequency Shift Keying and Binary Phase Shift Keying modulation concepts and analyze and design FSK transmission system for a given set of parameters.
• Analyze Amplitude Modulation, Frequency Shift Keyed Modulation and Binary Shift Keyed Modulation.
• Design, analyze, build and test an FSK Modulator and Demodulator with the aid of a mathematical model and compare actual and theoretical results.

Effective as of Winter 2005