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Basic Pump Maintenance: Keeping a problem from happening in the first place



On the surface, pumps seem like pretty simple things. But combining electrical and mechanical operations to move water from one place to another is complex and can be rife with problems. In this free 1 hour webinar, instructor Wade Heisler helps take some of the mystery out of basic pump maintenance. We'll discuss maintenance strategies and techniques to help keep pumps from failing in the first place.


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Amplifiers

Amplifiers

Covers the effects of gain, bandwidth, and distortion on amplifier performance. The course compares linear and nonlinear (switching) amplifiers. Explains how to use transistor curves to analyze amplifier operation in terms of operating regions, load lines, operating (Q) points, and biasing. The online course discusses impedance matching and compares capacitive, transformer, and direct-coupled amplifiers. Describes many ways op amps are used today, including integrators and comparators. Provides specific methods for troubleshooting common amplifier problems that maintenance technicians should be familiar with when working with electronics. Amplifiers is available in online and course manual formats.

TPC Training Systems is authorized by IACET to offer 0.5 CEUs for this program.

Review a full course list for Instrumentation & Control Systems Technician

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  • Online Course & Test $85.00
  • Course Manual $57.00

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Lesson 1 - Introduction to Amplifiers

Topics:

Amplifying circuits; Amplifier characteristics; Transistor amplifiers; Characteristic curves; Effects of temperature

Learning Objectives:
– Explain how gain, bandwidth, and distortion relate to amplifier operation.
– Compare bipolar transistor amplifiers and FET amplifiers.
– Explain how to use characteristic curves to predict transistor performance.
– Explain how to use an input/output curve to determine transistor gain.
– Discuss the effect of ambient temperature on amplifier performance.
– Discuss the uses of operational amplifiers and switching amplifiers.

Lesson 2 - Single-Stage Amplifiers

Topics:

Biasing circuits; Operating points and load lines; Biasing common-emitter, -collector, and -base circuits; Biasing FET amplifiers; Amplifier classifications; Push-pull amplifiers

Learning Objectives:
– Discuss the transistor characteristics that define operating region limits.
– Explain how to draw an amplifier load line.
– Explain how to find the operating point of an amplifier.
– Discuss biasing as a means of establishing a stable operating point in an amplifier circuit.
– Discuss five ways that amplifiers can be classified and compare Class A, AB, B, and C amplifiers.

Lesson 3 - Amplifier Performance and Multistage Amplifiers

Topics:

Power, current, and voltage gain; Distortion; Impedance matching; Multistage amplifiers; Amplifier, capacitive, and transformer coupling; Direct-coupled amplifiers

Learning Objectives:
– Explain how to calculate amplifier power gain, efficiency, current gain, and voltage gain.
– Explain how nonlinearity and clipping cause amplifier distortion.
– Discuss the importance of impedance matching in interconnecting circuits.
– Explain how to calculate multistage amplifier gain and bandwidth.
– Compare the advantages and disadvantages of capacitive-coupled, transformer-coupled, and direct-coupled amplifiers.

Lesson 4 - Op Amps

Topics:

Differential amplifiers; Typical op amp; Inverting, summing, and noninverting amplifiers; Nonlinear op amp circuits; Integrators; Comparators; Squaring circuits

Learning Objectives:
– Describe the operation of differential amplifiers.
– Compare the properties of an ideal op amp and a typical actual op amp.
– Describe the operation of inverting amplifiers in terms of virtual ground.
– Compare the advantages of inverting amplifiers and noninverting amplifiers.
– Explain how integrators and comparators work.
– Explain how zener diodes are used in squaring circuits.

Lesson 5 - Troubleshooting Amplifiers

Topics:

Troubleshooting single- and three-stage amplifiers; Troubleshooting by DC and AC analysis; Measuring gain and power supply performance; Troubleshooting components, op amps

Learning Objectives:
– Describe basic procedures for troubleshooting single-stage and multistage amplifiers.
– Explain how dc analysis, ac analysis, and troubleshooting trees are used in amplifier maintenance.
– Explain how to measure amplifier gain and power supply performance.
– Describe the procedures for troubleshooting resistors, capacitors, and op amps.

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