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 Completion of the course |
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 Exam questions for obligatory test |
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Conditions for granting credit |
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 Labs |
It is necessary to complete the course work safety AE2M17BP3 (in English) for the opportunity to attend this course labs. AE2M17BP3 course dates for this year will be ..... Contact to the lecturer: .... (...@fel.cvut.cz).
It is necessary to work up three laboratory tasks. Detailed instructions for measurement tasks including scoring is given in the instructions on measuring, see. program of exercises. Homework is necessary to achieve the full number of points. Homework consists of calculation and simulation required (measured) values and recording them to a laboratory notebook. In the absence of homework instructor may withhold up 2 points from the assessment task.
Students measure the task individually eventually in pairs (max. two student per workplace), which are prepared in advance. At the end of the laboratory exercises, each student transfer the diary with the measured and processed data to instructor. Instructor will score it and give back to students at the beginning of the next measurement (seminar).
Valid measured and calculated values are scored. It should be noted that for the tasks it is necessary to calculate required results from the measurement data and compare them with expectations. If the results do not meet expectations, the student can immediately consult the measurements with the teacher and any errors corrected. This avoids poorly measured data and forcing students to think of the results already in their measurements. Measuring dependence (characteristics) is need to be done effectively - the desired characteristics can be usually constructed from two or three appropriately points.
Scoring is noted for each task in the laboratory instructions. Maximum score of four laboratory measurements is 4+2+4+5=15 points.
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Passing the subject in case of teaching by individual consultations |
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Semestral works |
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| Lectures |
1 - Basic electronic parts and its models, the method of linearization |
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2 - One Stage Transistor Amplifiers |
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4 - Multistage amplifiers |
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6 - Operational amplifiers, basic properties and usage |
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8 - Feedback systems, properties and stability problem |
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11 - Regenerative circuits |
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13 - Switches |
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| Training courses |
Introduction to simulation program MicroCap |
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Micro-Cap 10 - User Guide |
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Micro-Cap 10 - Reference Manual |
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 Biasing amplifiers with BJTs |
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circuit partly corresponds to laboratory kit of single-stage amplifiers. Using dynamic DC and DC analyses biasing and stabilization of
operating point of the transistor can be found. |
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 File "bi_Po-mc.cir" download |
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Diode network |
The circuit enables to control (electronically) the size of the signal (AC) transmission V1 by DC current I1 . Analysis demonstrates dependence of the transmission on the DC current (AC analysis), the distortion of the output signal dependence on the excitation value and location of the diode operating point (transient analysis).
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File "d_cl-mc.cir" download |
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One-stage amplifier with BJT |
The circuit corresponds to the laboratory kit of single-stage amplifier with bipolar transistor. The parameters of the amplifier as voltage gain, input resistance, etc. in middle frequency band can be found using dynamic AC analysis. Low and high cut-off frequency can be determinate from the frequency response (AC analysis). Time response can be found by transient analysis. |
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File "bi_lab-mc.cir" download |
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Simulation of nonlinear distortion |
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Lab - Measurement of amplifier with BJT transistor |
The aim of the measurement is to introduce the functions and key features of amplifier with bipolar transistor. The main tasks are verifying the operating point position and finding the corresponding important parameters for AC excitation by relatively small signal (the value of the gain, input and output impedance).
It is required to be prepared ie. read the manual and study of the circuitry. The measurement board is designed for several possible connections. Therefore student should orient in the circuitry. As preparation is necessary to prepare the table for the measured and calculated values. Also it is necessary to fill the tables in by the expected values (simulated and calculated - ie. from seminars). Tutor will inspect your preparation in notebooks before beginning of a laboratory. If the preparation will not be adequate, the studens may assign one negative point or two negative points if the preparation absent.
From the measured values it is necessary to calculate the appropriate parameters immediately and compare it with the expected (simulated) values. In case of discrepancy it should be measured again or ask tutor for help.
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Measurement Instructions for laboratory exercise: "Single-stage Amplifier with Bipolar Transistor" |
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One-stage amplifier with FET |
The circuit corresponds to the laboratory kit of single-stage amplifiers. The parameters of amplifier as voltage gain, input resistance, etc. in midband can be found using dynamic AC analysis. Low and high cut-off frequency can be determinate from the frequency response (AC analysis). Time response can be found by transient analysis. |
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File "mos_lab-mc.cir" download |
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Lab - Measurement of amplifier with FET transistor |
The aim of the measurement is to introduce the functions and key features of amplifier with unipolar transistor. The main tasks are verifying the operating point position and finding the corresponding important parameters for AC excitation by relatively small signal (the value of the gain, input and output impedance).
It is required to be prepared ie. read the manual and study of the circuitry. The measurement board is designed for several possible connections. Therefore student should orient in the circuitry. As preparation is necessary to prepare the table for the measured and calculated values. Also it is necessary to fill the tables in by the expected values (simulated and calculated). Tutor will inspect your preparation in notebooks before beginning of a laboratory. If the preparation will not be adequate, the studens may assign one negative point or two negative points if the preparation absent.
From the measured values it is necessary to calculate the appropriate parameters immediately and compare it with the expected (simulated) values. In case of discrepancy it should be measured again or ask tutor for help.
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Measurement Instructions for laboratory exercise: "Single-stage Amplifier with Unipolar Transistor" |
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Differential Amplifier |
The circuit corresponds to the laboratory kit of differential amplifier. Biasing can be calculated by the dynamic DC analysis, transfer characteristics by DC analysis. The parameters of amplifier as voltage gain, input resistance, etc. in midband can be found using dynamic AC analysis. Time response can be found by transient analysis.
Circuit configuration (part in emitters, load value, etc.) can be changed by controlled by interactive switches.
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File "ds_lab-mc.cir" download |
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Measurement Instructions for laboratory exercise: "Differential Amplifiers" |
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 Illustrative video for the lab |
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File "oz1-mc.cir" download |
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Linear operational network |
You can analyze the basic properties of two elementary circuits - noninverting amplifier and inverting amplifier integrator with OpAmp. Basic properties and circuit behavior can be analyzed by dynamic DC and AC analysis with different parameters. Parametric AC analysis shows the frequency responses of the amplifier and integrator. Amplifier output signal, depending on the excitation shows transient analysis. |
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Measurement Instructions for laboratory exercise: "Linear Networks with OpAmp" |
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Datasheet of OpAmp LM748 |
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Illustrative video for the lab |
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Bistable circuit as a Comparator |
Basic
properties of the bistable circuit with OpAmp as a comparator can be analyzed by
parametric transient analysis. |
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File "oz2-mc.cir" download |
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Full-wave rectifier (absolute value amplifier) |
Half-wave as well as full-wave rectifier is analyzed by the transient analysis. |
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File "oz3-mc.cir" download |
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Two-port network analysis |
The picture shows two frequency-dependent networks (two-ports). Analyze these networks (frequency filters) using the Micro-Cap in frequency and time domain. Determinethe frequency response (module and phase), unit step response and,where appropriate impulse response.Change the values of resistors in the first network and follow the changes in its behavior.Discussthe possibility of using these networks for oscillator circuit with OpAmp.
Use also Maple program with PraCAn package for analyses or our web interface (the file is alsoprovided). |
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File "osc_cl12_mc.cir" for download |
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Network analyses in Maple - PDF export |
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File "cl1.sve" for interactive web application |
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Network for home analysis |
Analyse the frequency and time responses of the circuit using MicoCap. |
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Oscillator 1 with OpAmp |
Assemble LC oscillator with operational amplifier(s) and filter (two-port network) from the previous exercise and verify its function by analysis in Micro-Cap. Adjust the gain of the amplifier so that the oscillations were stable with minimal signal distortion. Find out harmonicdistortion(THD) of the output signal.
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File "osc1_mc.cir" for download |
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Oscillator 2 with OpAmp |
Assemble RC oscillator with operational
amplifier(s) and filter (two-port network) from the previous exercise
and verify its function by analysis in Micro-Cap. A djust the gain of the
amplifier so that the oscillations were stable with minimal signal
distortion. Find out harmonicdistortion(THD) of the output signal.
Assemble RC oscillator with triple
network for homework. Use derivative networks unlike integration
networks from the previous case. Analyse the network first to determine
oscillation condition. Adjust the gain of the
amplifier so that the oscillations were stable with minimal signal
distortion. Find out harmonicdistortion(THD) of the output signal.
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File "osc2_mc.cir" for download |
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