High‑Performance Electronic Technology Training & Assessment Workbench Didactic Trainer For Technical University Electronic Practical Skill Assessment

Product Introduction

This device was developed based on electronic process assessment requirements, combined with actual production and related job skill requirements. It can complete practical training projects such as analog electronic technology training, digital electronic technology training, comprehensive application training, and electronic product process welding, assembly, and debugging. It is suitable for practical training in courses such as "Electronic Circuits," "Fundamentals of Electronic Technology," and "Electronic Processes" for majors such as Electronic Technology Application and Electronic and Information Technology in vocational colleges.

Features:

1. The device adopts a modular structure design, with rich content, reasonable design, and flexible use. Modules can be arbitrarily selected and combined according to the needs of teaching content and the requirements of skills competitions, demonstrating strong innovation.
2. The training unit module consists of a transparent component box and a PCB board. The component box is injection molded from transparent organic engineering plastic, and the front panel is made of PCB board. The wire sockets use anti-rotation connectors, and the wires are equipped with flexible plugs for insertion into the module. The module's four flexible pins allow it to be positioned on a dedicated training operation base plate. During training, the training circuits can be easily and arbitrarily combined according to the training content and skill development needs to complete different training projects, such as course design.
3. It is equipped with a variety of typical training kits, which can help students develop their skills in soldering, assembling and debugging electronic products.
4. The power supply and measuring instrument outputs are led out in two ways: through terminals and through wires, making practical training convenient.

Technical Specifications :

1. Input power: Single-phase three-wire AC220V±10% 50Hz
2. Device capacity: ≤1.5KW
3. External dimensions: 1600mm * 700mm * 1800mm
4. Safety protection: It has grounding protection and leakage protection functions, and its safety meets relevant national standards .

Basic Configuration and Functions:

This device consists of a training platform, control panel, training modules, training kits, and training tools. It mainly includes two sets of low-voltage AC power supplies, a DC adjustable regulated power supply, a DC regulated power supply, and various testing instruments, allowing two people to simultaneously complete different training tasks.

(1) Training Platform

The control panel features a two-tiered structure with an industrial aluminum alloy frame. The first tier can accommodate external instruments such as oscilloscopes and function generators, as well as hang other general electrical and electronic training boxes, expanding the scope for training multiple courses. The second tier can hold PVC panels for storing training drawings, facilitating user setup and debugging of training projects. A 30W fluorescent lamp is installed at the top , and four casters are provided underneath for easy movement and securing.

★ The training table must be fitted with a protective baffle integrated into the tabletop. The baffle must be composed of high-strength aluminum alloy molded internally and an injection-molded PVC outer shell. The baffle must prevent experimental supplies from slipping, be dustproof, and corrosion-resistant to ensure experimental safety and equipment protection. The baffle should be easy to disassemble and install, facilitating daily maintenance and cleaning.

(2) Power control panel

The control panel is a double-layered matte textured powder-coated iron structure with a steel panel that has been machined and formed. The outer surface is coated with colored epoxy resin , and the text and symbols are processed using modern color inkjet printing technology. The panel markings are clear and durable , and it provides AC/DC power, signal sources, and measuring instruments for practical training .

( 1 ) The device is powered by a single-phase power supply and is equipped with an air switch with leakage protection and a fuse to ensure safe use.

( 2 ) DC adjustable regulated power supply

It offers continuously adjustable voltage from 0.0 to 24V and current from 0 to 2A, starting from 0V. The output voltage and current values can be smoothly adjusted by turning the multi-turn potentiometer knob for "Output Adjustment". It features short-circuit soft-cutoff protection and automatic recovery function. The output has a 3.5-digit digital display voltmeter and ammeter indicating the current output voltage and current values.

( 3 ) DC regulated power supply

Provides a fixed ±5V or ±12V DC regulated power supply; with short-circuit protection function.

( 4 ) Low-voltage AC power supply

It provides 3-24V low-voltage AC power output, with seven adjustable levels: 3V, 6V, 9V, 12V, 15V, 20V, and 24V. The output terminal has short-circuit protection.

(5) DC digital instruments

Provide one precision digital voltmeter (DC 30V) and one precision digital ammeter (DC 2000mA).

(6) 8-way single-phase power socket

It provides 8 single-phase power sockets for convenient use when expanding equipment and instruments.

(7) Practical Training Module

It offers over 100 training modules, including resistors, capacitors, potentiometers, inductors, pulse transformers, Zener diodes, bidirectional Zener diodes, rectifier diodes, MOSFETs, unidirectional thyristors, bidirectional thyristors, IGBTs, reset push-button switches, toggle switches, incandescent lamps, fuses, common cathode digital tubes, integrated Zener diodes, acoustic sensors, speakers, buzzers, gas sensors, component sockets, music chips, copper resistance thermometers, operational amplifier circuits, relay driver circuits, unijunction transistor trigger circuits, power amplifier integrated circuits, DC-DC integrated converters, single-transistor amplifier circuits, motor speed measurement, ten-digit logic level output, single pulse source, coded switch circuit, DIP switch, CP clock pulse source, ten-digit logic level display, common cathode digital tube driver circuit, traffic light circuit, and more .

The training module consists of a transparent component box and a PCB board, featuring openness and innovation. The component box is injection molded from transparent organic engineering plastic, providing a teaching function. Users can observe the shape of the components and the wiring method, which is beneficial for teachers to explain and students to understand. The panel is made of PCB, with a clean surface, clear symbols and circuits, wear resistance, and easy component replacement. The component circuit symbols marked on the panel adopt the latest national standards, featuring a compact overall structure, beautiful appearance, simple installation, and convenient use and storage.

(8) Supporting tools

We provide soldering irons, wire strippers, diagonal pliers, needle-nose pliers, screwdrivers, etc.

Experimental Projects

Analog Electronics Technology Comprehensive Application and Innovation Training Project Catalog

1. Project 1: Performance Testing and Application of Commonly Used Diodes
2. Project 2: Determination of Output Characteristics of Bipolar Transistors and Field-Effect Transistors
3. Project 3: Research on Single-Transistor Amplifier Circuits
4. Project 4: Research on Two-Pole Amplifier Circuits and Negative Feedback Amplifier Circuits
5. Project 5: Debugging of Hearing Aid Circuits (Electronic Product Circuits) (Comprehensive Application)
6. Project 6: Constant Current Charging Circuit (Application of Field-Effect Transistors) (Electronic Product Circuits) (Comprehensive Application)
7. Project 7: Research on Rectification, Filtering, and Voltage Regulation Circuits
8. Project 8: Research on DC Regulated Positive and Negative Power Supply Circuits
9. Project 9: Debugging of Typical Composite Complementary OTL Power Amplifier Circuits (Electronic Product Circuits) (Comprehensive Application)
10. Project 10: Troubleshooting of OTL Power Amplifier Circuits
11. Project 11: LM386 Integrated Audio Power Amplifier Circuit and Its Application (Electronic Product Circuits) (Comprehensive Application)
12. Project 12: Basic Operational Circuits of Operational Amplifiers
13. Project 13: Integrator and Differentiator Circuits Composed of Operational Amplifiers
14. Project 14: Research on the Transfer Characteristics of Voltage Comparators Composed of Operational Amplifiers