Vertical Integrated Electrical Engineering, Analog Electronics, and Digital Electronics Experiment and Skills Training Assessment Equipment 5564SA63 Electrical And Electronics Lab Equipment

I. Overview:

This device organically combines electrical engineering, analog electronics, and digital electronics experiments with skills training and assessment, achieving resource sharing and multi-purpose use of a single room. It reduces the need for instructors and infrastructure investment, resulting in significant economic benefits. Compared to the DBL-755 series, it features significant improvements in experimental platform technology and the depth and breadth of experimental content. Experiments include courses such as electrical engineering, electrical principles, analog electronics, and digital electronics, and can be used to conduct experiments on AC/DC circuits, oscillation circuits, magnetic field circuits, operational amplifiers, rectifier circuits, AC/DC amplifier circuits, and digital logic circuits. The experimental section adopts advanced German vocational education methods: utilizing a nine-hole universal experimental board and discrete transparent component boxes for flexible combination experiments. Components are reusable, making experiments convenient and fostering strong hands-on skills.

This analog and digital electronics skills training program reforms the traditional experimental and practical teaching model. Through basic operational skills and the creation and debugging of over thirty types of practical new circuits, students master the production and debugging of electronic products, learn to read circuit schematics and PCB diagrams, become familiar with the selection and testing of common electronic components, and master soldering and circuit assembly skills (the equipment includes over thirty sets of specially designed training circuit boards and corresponding components). Students are also able to handle problems encountered during installation and debugging. The training circuits cover switching, audio, signal generation, counting, decoding, display, measurement, and control.

Electrical training assessments are conducted on the perforated board on the left side of the assessment platform. Through systematic training in safe electricity use, the use of common tools and instruments, basic electrical skills, motor installation, maintenance and troubleshooting, installation, debugging and repair of basic motor control circuits, and fault analysis and handling of common production machinery electrical control circuits, students can achieve at least an intermediate level in labor and social security vocational skills assessment. This series of equipment is scientific, demonstrative, practical, and engaging, making it an ideal product for the construction or renovation of laboratories in higher education institutions, vocational schools, and various training institutions.

II. Features:

1. It can complete electrical engineering, analog electronics, and digital electronics experiments as well as conduct practical training and assessments in these fields, significantly saving on laboratory space and management personnel, resulting in substantial economic benefits.

2. The component boxes in the experimental section are transparent, providing excellent visibility. The box covers and bodies utilize a scientifically designed snap-fit ​​structure, facilitating maintenance and disassembly, and allowing for reusability. Component boxes can be arbitrarily connected to form experimental circuits on a nine-hole universal experimental board, offering flexible methods that enable students to apply their knowledge flexibly and master it quickly.

3. The practical training section is completed on a perforated board, making operation convenient and flexible. Component replacement is easy, closely resembling an industrial setting, and allowing for easy expansion of training functions or the development of new training projects.

4. The experimental training projects are abundant, and the device has complete functions. The digital electronic circuit experiments are equipped with universal integrated sockets, providing strong experimental expandability.

5. It is equipped with voltage-type and current-type leakage protection devices, and a single-chip microcomputer-based automatic monitoring device for overload or short circuits. In the event of an overload or short circuit, the power supply will be automatically cut off, and the power supply can only be restarted after the fault is cleared. Ensures equipment and operator safety.

6. The reference standard is 12 student workstations and 1 teacher workstation per room. Users can adjust the number of workstations according to the number of students. The teacher workstation can be used for demonstrations and can also control the power supply of the student workstations.

III. Technical Specifications:

1. Power Supply: Three-phase four-wire (or three-phase five-wire) ~380V ±5% 50Hz

2. Temperature: -10℃～40℃, relative humidity <85% (25℃)

3. Device Capacity: <1KVA

4. Weight: 200Kg

IV. Functional Configuration

1. Power Supply and Parameters:

1.1 Input Power: Three-phase four-wire power input controlled by start and stop buttons; indicator light illuminates during input.

1.2 Power Output: Equipped with an embedded fuse box, three-phase leakage circuit breaker, overload and short-circuit soft-cutoff protection devices, and three-level protection function.

Group A: Single-phase and three-phase adjustable AC power supply, providing continuously adjustable AC power from 0-430V, and simultaneously providing 0-250V single-phase adjustable power (equipped with a 1.5KVA three-phase autotransformer and three AC voltmeters to indicate the adjustable output voltage).

Group B: Low-voltage AC power supply with seven adjustable voltage levels from 3-24V, maximum output current 1.5A, indicated by an ammeter.

Group C: Low-voltage DC regulated power supply, voltage 5V, current 0.5A, indicated by an ammeter.

Group D: Dual-channel constant current regulated power supply, both output voltages are 0-30V, with built-in relays for automatic range switching. Multi-turn potentiometer for continuous adjustment, easy to use. Maximum output current is 1.5A, with preset current limiting protection function. Output has 0.5-level digital ammeter and voltmeter indication, voltage stability <10⁻², load stability <10⁻², ripple voltage <5mV.

Group E: Single-phase AC mains output, supplied to user equipment via a universal power strip.

2. Safety Protection: Equipped with voltage-type and current-type leakage current protectors, and a microcontroller automatically monitors for overload or short circuit, automatically cutting off the main power supply. Power can only be restarted after the reset button is pressed following fault resolution, ensuring operator and equipment safety.

3. Function Signal Generator

3.1 Waveforms: Sine wave, triangle wave, square wave, pulse wave, sawtooth wave, TTL square wave, rectangular wave.

3.2 Frequency Range: From 0.1Hz to 2MHz, divided into seven frequency levels.

3.3 Sine Wave Distortion: 10-30Hz <3%; 30Hz-100kHz ≤1%

3.4 Square Wave Response: Leading Edge/Left Edge ≤100ns (Open Circuit)

3.5 Maximum Output Amplitude (Open Circuit): f < 1MHz amplitude ≤15Vp-p; 1MHz < f ≤2MHz amplitude ≤11Vp-p

3.6 DC Bias (Open Circuit): ≤10V

3.7 Output Impedance Z: ZO = 50Ω ±5Ω

3.8 Duty Cycle: The rising and falling edges of pulse and sawtooth waves can be continuously varied, ranging from 10% to 90%.

3.9 Voltage-Controlled Oscillator (VCF): When the applied DC voltage changes from 0 to ±5V, the corresponding frequency change is greater than 100:1.

3.10 Output Attenuation: 20dB 40dB 60dB

4. Frequency Counter:

4.1 Frequency Measurement Range: 1Hz～100MHz

4.2 Gate Time: 0.01S, 0.1S, 1S, 10S

4.3 Input Impedance (AC Coupling): Resistive component approximately 500KΩ, parallel capacitor approximately 100pF.

5. Single Pulse: Outputs a pair of positive and negative pulses each time.

6. Audio Power Amplifier: Input audio voltage not less than 10mV, output power not less than 1W, adjustable volume, built-in speaker, used for amplification circuitry and signal tracing.

7. Seven-Segment Decoder: 6 sets of seven-segment decoders and corresponding decoded display digital tubes.

8. Intelligent Power and Power Factor Meter

Designed with a 24-bit dedicated DSP, a 16-bit high-precision AD converter, and a high-speed MPU unit, this meter features a human-machine interface control mode via keypad and digital display. The software adopts an RTOS design approach and is equipped with PC monitoring software to enhance analytical capabilities. Power measurement accuracy is 1.0 class, power factor measurement range is 0.3-1.0, voltage and current ranges are 450V and 5A, and it can automatically identify the load type (inductive load displays “L”, capacitive load displays “C”, pure resistance is not displayed). It can store 15 sets of measurement data for easy reference.

9. One True RMS Intelligent AC Ammeter

This meter, constructed with a single-chip microcomputer-controlled test circuit, features a fully digital display and full-range AC ammeter. It also features a human-machine interface control mode via keypad and digital display. Capable of measuring true RMS values ​​of AC signals (20-20kHz), with a measurement range of 0-5A. Automatic range detection and switching, 0.5-level accuracy, and four-digit digital display. It can also store, query, and modify data (15 groups in total, power-off retention).

10. One intelligent DC digital ammeter

Designed using a high-performance AD ​​converter from ECL and a high-speed MPU unit, it features a human-machine interface control mode via keypad and digital display. It has automatic and manual ranges, with a measurement range of 0-2000mA. Manual ranges are 20mA, 200mA, and 2000mA. Measurement accuracy is 0.5-level. It has data storage and query functions. It also features over-range alarm and indication functions.

V. Overall Room Composition and Equipment (Based on a reference standard: 1 teacher’s station and 12 student stations)

1. 12 experimental training screens, one for each student station. Made of double-layer matte powder-coated iron, with a perforated panel on the left and a nine-hole universal experimental board on the right. The lower part houses the power supply, signal, and control unit.

2. Operating tables: Aluminum-wood structure, with fireproof, waterproof, and wear-resistant high-density fiberboard tabletops. A total of 12 tables, one table with two seats. Each table is equipped with a rubber sheet for protection. The lower part of the table has a component storage cabinet for storing components.

3. 1 teacher’s station: Composed of an experimental training demonstration screen, a table, and a student power supply integrated controller. It can be used for experimental training demonstrations and explanations, and can also control the power supply of each student station to improve safety.

VI. Reference Experimental Training Projects

(I) Training Section:

A: Electrical Engineering Section

1. Use of a low-voltage tester

2. Operation of a fire extinguisher (teacher demonstration)

3. 4. Mastery of mouth-to-mouth resuscitation and chest compressions for first aid

5. Use and identification of common tools

6. Connection and insulation restoration of common wires

7. Soldering iron disassembly and soldering skills training

8. Electrical drawing reading training

9. Electrical wiring process

10. Installation and wiring of fluorescent lamp circuits

11. Installation of single-phase electricity meter direct wiring circuit

12. Installation of single-phase electricity meter wiring circuit via current transformer

13. Distribution board installation

14. Indoor wiring

15. Installation of indoor lighting circuits

16. Use and reading of multimeter selector switches

17. Measurement of AC voltage

18. Measurement of DC voltage and DC current

19. Installation of ammeters and voltmeters

20. Measurement of resistance

21. Use of megohmmeters, clamp meters, and grounding resistance testers

22. Measurement of single-phase power and power factor

23. Installation and Wiring of Three-Phase Four-Wire Active Energy Meter

23. Installation and Wiring of Three-Phase Four-Wire Active Energy Meter via Current Transformer

24. Disassembly and Assembly of Common Switches and Relays

25. Disassembly and Assembly of AC Contactors

26. Structural Observation and Testing of Common Starters

27. Fabrication of Small Transformers

28. Troubleshooting and Inspection of Small Transformers

29. Disassembly, Assembly, and Testing of Three-Phase Squirrel-Cage Motors

30. Operational Inspection of Three-Phase Squirrel-Cage Asynchronous Motors

31. Periodic Maintenance of Three-Phase Squirrel-Cage Asynchronous Motors

32. Fault Analysis of Three-Phase Squirrel-Cage Motors

33. Troubleshooting of Local Faults in Stator Windings

34. Disassembly and Assembly of Windings in Single-Phase Capacitor Motors

35. Faults and Troubleshooting of Single-Phase Capacitor Motors

36. Installation and Maintenance Training of Manual Forward Rotation Control Circuits

37. Contactor Jogging Forward Rotation Control

38. Forward Rotation Control with Self-Locking Function

39. 40. Forward and Reverse Control with Overload Protection

41. Forward and Reverse Control Circuit with Contactor Interlock

42. Forward and Reverse Control Circuit with Push-Button Interlock

43. Control Circuit with Combined Push-Button and Contactor Interlock

44. Y-Δ Reduced Voltage Control with Push-Button Control

45. Interlock Control between Spindle and Feed Motor of X62-W Milling Machine

46. Y-Δ Reduced Voltage Starting Control with Time Relay Control

47. Simulated Installation of Control Circuit for C620-1 Lathe

48. DC Motor Disassembly and Assembly Training (Teacher Demonstration)

1. DC Motor Repair Training (Teacher Demonstration)

1. Use of Common Instruments and Meters

2. Identification and Testing of Common Electronic Components

3. Soldering Iron Disassembly and Assembly and Electronic Soldering Skills Training

4. Printed Circuit Board Fabrication

5. Fabrication of Three-Terminal Integrated Regulated DC Power Supply

6. Fabrication of Series-Type DC Regulated Power Supply

7. Assembly and Testing of Low-Frequency Signal Voltage Amplifier

8. Construction and Testing of Signal Amplifier Circuit with Negative Feedback

9. Soldering and Debugging of Wien Bridge Oscillator

10. Construction and Testing of Battery Voltage Monitoring Circuit

11. Construction of Electronic Hypnotist Circuit

12. Practical Training in the Construction of Simulated “Cicada” Electronic Circuit

13. Construction and Training of Practical Sound-Controlled and Light-Controlled Energy-Saving Lighting

14. Practical Training in the Construction of Electronic Mosquito Repellent Circuit

15. Eye Protection Timer Circuit

16. Construction and Training of Voice Alarm Speaker

17. Construction and Testing of Logic Tester

18. Construction and Testing of Positive and Negative Pulse Signals

19. Construction of Quiz Buzzer

20. Construction of Water Level Alarm Circuit

21. Construction of Mini Flashing Colored Light

22. Light-Controlled Musical Doorbell

23. Construction of Practical Simulated Natural Wind Controller

24. Table lamp dimming circuit

25. Practical CMOS touch key circuit

26. Making an automatic charger

27. Assembly and debugging of a semiconductor radio

28. Assembly and debugging of a hearing aid

29. Assembly and debugging of sound and light controlled corridor lights

30. Assembly and debugging of a fire-fighting robot

B. Analog and digital circuit experiments:

(1) Analog experiments

1. Forward and reverse characteristics of diodes

2. Input and output characteristics of transistors

3. Common-emitter single-transistor amplifier

4. Two-stage RC-coupled amplifier circuit

5. The effect of negative feedback on amplifier performance

6. Field-effect transistor amplifier

7. Differential amplifier circuit

8. Operational amplifier performance testing

9. Basic applications of integrated operational amplifiers

(Various analog operational circuits)

10. Nonlinear Applications of Integrated Operational Amplifiers

(Multiple Waveform Generators), ;, ;,

11. Transformer-Coupled Push-Pull Power Amplifier

12. 0TL Power Amplifier

13. Integrated Power Amplifier

14. Single-Phase Bridge Rectifier Circuit

15. Series-Type Transistor DC Regulated Power Supply

(Design Experiment)

16. Integrated DC Regulated Power Supply

17. Unijunction Transistor Characteristics

18. Unijunction Transistor Trigger Circuit

19. Simple Thyristor Test

20. Thyristor Controlled Rectifier Circuit

Using the above 20 experimental components, the following experimental items can also be completed:

(2) Digital Part Experiments

1. Voltage Negative Feedback Bias Circuit

2. Voltage Divider Current Negative Feedback Bias Circuit

3. Stabilizing the Operating Point with Diodes

4. Common-Base Amplifier Circuit

5. Common-Collector Amplifier Circuit

6. Common-Source Basic Amplifier Circuit

7. 8. Common-drain MOSFET circuit

9. Common-gate MOSFET circuit

10. Single-transistor RC amplifier circuit

11. Transformer-coupled amplifier circuit

12. Class A power amplifier circuit

13. Series current negative feedback circuit

13. Series Voltage Negative Feedback Circuit

14. Parallel Voltage Negative Feedback Circuit

15. Parallel Current Negative Feedback Circuit

16. Common-Base Common-Emitter Amplifier Circuit

17. Bootstrap Emitter Follower Circuit

18. NPN-PNP Direct-Coupled Amplifier Circuit

19. Eliminating Self-Excited Oscillation with Negative Feedback

20. Transistor Switching Function

21. Transformer Feedback Oscillator Circuit

22. Capacitor Three-Point Oscillator Circuit

23. Inductor Three-Point Oscillator Circuit

24. Basic Forms of Differential Amplifier Circuits

25. Long-Tail Differential Amplifier Circuit

26. Dual-Power Long-Tail Differential Amplifier Circuit

27. Operational Amplifier Used for AC Proportional Amplification

28. Inverting Input Protection Measures

29. Non-Inverting Input Protection Measures

30. Power Supply Polarity Incorrect Connection Protection

31. RC High-Pass Circuit

32. Using Transistors to Protect Devices

33. Differential Input Operation Circuit

34. Fast Integrator Circuit

35. Analog First-Order Differential Equation Circuit

36. Analog Second-Order Differential Equation Circuit

37. Basic Logarithmic Operation Circuit

38. Practical Differentiator Circuit

39. Basic Anti-Static Amplifier Circuit

40. Simple Zero-Crossing Comparator Circuit

41. Circuit Using a Diode as the Upper Limit Detector Amplitude Selection Circuit

42. Lower Limit Amplitude Selection Circuit

43. Low-Pass Filter Circuit with RC Passive Network

44. First-Order Low-Pass Filter Circuit with Non-Inverting Input

45. First-Order Low-Pass Filter Circuit with Inverting Input

46. Simple Second-Order RC Filter Circuit

47. Typical Second-Order RC Active Low-Pass Filter Circuit

48. Typical Second-Order High-Pass Active Filter Circuit

49. Basic Band-Pass Filter Circuit

50. Typical Band-Pass Filter Circuit

51. Rectangular Wave Oscillator Circuit

52. 53. Adjustable Width Rectangular Wave Generator

54. Adjustable Amplitude and Frequency Sawtooth Wave Generator

55. Single-Phase Half-Wave Rectifier Circuit

56. Single-Phase Full-Wave Rectifier Circuit

57. Capacitor Filter Circuit

58. Capacitor Filter with Resistive Load

59. RC Filter Circuit

60. Basic LC Filter Circuit

61. Voltage Doubler Rectifier Circuit

62. Voltage Tripler Rectifier Circuit

63. Basic Voltage Regulator Circuit

64. Voltage Regulator Circuit with Amplification Stage

65. Single-Phase Half-Wave Thyristor Rectifier

66. Electronic Voltage Regulator Circuit

67. Electronic Hypnotist – Fun Experiment 1

68. Electronic Doorbell Circuit – Fun Experiment 2

69. Electronic Alarm Circuit – Fun Experiment 3

1. Parameter Testing of TTL Integrated Logic Gates

2. Parameter Testing of CMOS Logic Gates

3. Applications of TTL Integrated Open-Circuit Gates and Tri-State Output Gates

4. AND, NOT, OR, NAND Gate Circuit Experiments

5. Half-Adder Circuit Experiments

6. Full Adder Circuit Experiments

7. RS Flip-Flop Experiments

8. D Flip-Flop Experiments

9. JK Flip-Flop Experiments

10. T Flip-Flop Experiments

11. Converting JK Flip-Flop to D Flip-Flop

12. Converting D Flip-Flop to JK Flip-Flop

13. Counter Experiments

14. MSI Shift Registers and Their Applications

15. Decoders and Their Conversion Methods

16. MSI Data Selectors and Logic Design

17. Differential Monostable Circuits

18. Ring Multivibrators

19. Constructing Encoders, Distributors, and Selectors Using Gate Circuits

20. Combinational Circuit Design Part 1: Encoding Conversion

21. Combinational Circuit Design Part 2: Display Circuits

22. Synchronous Sequential Circuit Design

23. Computer Sequential Circuit Design

24. Integrated Timer Testing and Applications

25. CMOS Integrated A/D and D/A Conversion Circuit Experiment

26. Diode NOT Gate and NOR Gate Circuit

27. Transistor NOT Gate, NAND Gate, and NOR Gate Circuit

28. Asynchronous Decimal Subtractor Counter

29. Asynchronous Decimal Adder Counter

30. Comprehensive Ability Training Experiment 1: Electronic Stopwatch

Basic Applications of Integrated Operational Amplifiers

(Various Analog Operational Circuits)

10. Nonlinear Applications of Integrated Operational Amplifiers

(Various Waveform Generators)

11. Transformer-Coupled Push-Pull Power Amplifier

12. OTL Power Amplifier

13. Integrated Power Amplifier

14. Single-Phase Bridge Rectifier Circuit

15. Series Transistor DC Regulated Power Supply

(Design Experiment)

16. Integrated DC Regulated Power Supply

17. Unijunction Transistor Characteristics

18. Unijunction Transistor Trigger Circuit

19. Simple Thyristor Test

20. Thyristor Controlled Rectifier Circuit

Using the above 20 experimental components, the following experimental items can also be completed:

(2) Digital Part Experiments

1. Voltage Negative Feedback Bias Circuit

2. Voltage Divider Current Negative Feedback Bias Circuit

3. Stabilizing the Operating Point with Diodes

4. Common Base Amplifier Circuit

5. Common Collector Amplifier Circuit

6. Common Source Basic Amplifier Circuit

7. Field Effect Transistor Common Drain Circuit

8. Field Effect Transistor Common Gate Circuit

9. Single Transistor RC Amplifier Circuit

10. Transformer Coupled Amplifier Circuit

11. Class A Power Amplifier Circuit

12. Series Current Negative Feedback Circuit

13. Series Voltage Negative Feedback Circuit

14. Parallel Voltage Negative Feedback Circuit

15. Parallel Current Negative Feedback Circuit

16. Common Base Common Emitter Amplifier Circuit

17. Bootstrap Emitter Output Circuit

18. NPN-PNP Direct-Coupled Amplifier Circuit

19. Eliminating Self-Oscillation with Negative Feedback

20. Transistor Switching Function

21. Transformer Feedback Oscillator Circuit

22. Capacitor Three-Point Oscillator Circuit

23. Inductor Three-Point Oscillator Circuit

24. Basic Forms of Differential Amplifier Circuits

25. Long-Tail Differential Amplifier Circuit

26. Dual-Power Long-Tail Differential Amplifier Circuit

27. Operational Amplifier Used for AC Proportional Amplification

28. Inverting Input Protection Measures

29. Non-Inverting Input Protection Measures

30. Protection Against Incorrect Power Supply Polarity

31. RC High-Pass Circuit

32. Using Transistors to Protect Devices

33. Differential Input Operational Circuit

34. Fast Integrator Circuit

35. Analog First-Order Differential Equation Circuit

36. Analog Second-Order Differential Equation Circuit

37. Basic Logarithmic Operational Circuit

38. Practical Differentiating Circuits

39. Basic Anti-digital Amplifier Circuit

40. Simple Zero-Crossing Comparator Circuit

41. Amplitude Selection Circuit Using a Diode as the Upper Limit Detector

42. Lower Limit Amplitude Selection Circuit

43. Low-Pass Filter Circuit with RC Passive Network

44. First-Order Low-Pass Filter Circuit with Non-Inverting Input

45. First-Order Low-Pass Filter Circuit with Inverting Input

46. Simple Second-Order RC Filter Circuit

47. Typical Second-Order RC Active Low-Pass Filter Circuit

48. Typical Second-Order High-Pass Active Filter Circuit

49. Basic Band-Pass Filter Circuit

50. Typical Band-Pass Filter Circuit

51. Rectangular Wave Oscillator Circuit

52. Adjustable Width Rectangular Wave Generator

53. Adjustable Amplitude and Frequency Sawtooth Wave Generator

54. Single-Phase Half-Wave Rectifier Circuit

55. Single-Phase Full-Wave Rectifier Circuit

56. Capacitor Filter Circuit

57. 58. Capacitor Filter with Resistive Load

59. RC Filter Circuit

60. Basic LC Filter Circuit

61. Voltage Doubler Rectifier Circuit

62. Voltage Tripler Rectifier Circuit

63. Basic Voltage Regulator Circuit

64. Voltage Regulator Circuit with Amplification Stage

65. Single-Phase Half-Wave Thyristor Rectifier

66. Electronic Voltage Regulator Circuit

67. Electronic Hypnotist – Fun Experiment 1

68. Electronic Doorbell Circuit – Fun Experiment 2

69. Electronic Alarm Circuit – Fun Experiment 3

1. Parameter Testing of TTL Integrated Logic Gates

2. Parameter Testing of CMOS Logic Gates

3. Application of TTL Integrated Open-Electrode Gates and Tri-State Output Gates

4. AND, NOT, OR, NAND Gate Circuit Experiments

5. Half Adder Circuit Experiment

6. Full Adder Circuit Experiment

7. RS Flip-Flop Experiment

8. D Flip-Flop Experiment

9. JK Flip-Flop Experiment

10. T Flip-Flop Experiment

11. Converting a JK Flip-Flop to a D Flip-Flop

12. Converting a D Flip-Flop to a JK Flip-Flop

13. Counter Experiment

14. MSI Shift Register and Its Applications

15. Decoder and Its Conversion Methods

16. MSI Data Selector and Logic Design

17. Differential Monostable Circuit

18. Ring Multivibrator

19. Encoder Distributor and Selector Constructed Using Gate Circuits

20. Combinational Circuit Design Part 1: Encoding Conversion

21. Combinational Circuit Design Part 2: Display Circuit

22. Synchronous Sequential Circuit Design

23. Computer Sequential Circuit Design

24. Integrated Timer Testing and Applications

25. CMOS Integrated A/D and D/A Conversion Circuit Experiment

26. Diode NOT Gate and NOR Gate Circuits

27. Transistor NOT Gate, NAND Gate, and NOR Gate Circuits

28. 29. Asynchronous Decimal Subtractor Counter

30. Asynchronous Decimal Adder Counter

31. Comprehensive Ability Training Experiment 1: Electronic Stopwatch