NTC-04.84.B “Secondary power sources”

1. NTC-04.84/1 “Rectifiers”.
Study of circuit and algorithm of single-phase half-wave and full-wave rectifier, bridge rectifier, and rectifier with midpoint.
2. NTC-04.84/2 “Linear stabilizer”.

Study of the circuit and the operational algorithm of linear series stabilizer on bipolar transistor. Determination of stabilization factor and  calculation of converter losses. 

3. NTC-04.84/3 “Switching regulator”. 

Study of the circuit and the operational algorithm of pulse-down regulator. Determination of output voltage ripple coefficient. 

4. NTC-04.84/4 “Forward and flyback single-stage converters”. 

Study of the circuit and the operational algorithm of single-stage pulse-width converter assembled on IC UC3844. 

5. NTC-04.84/5 “Two-stage pulse-width converter”. 

6. NTC-04.84/6 “Half-bridge converter”. 

7. NTC-04.84/7 “Autogenerating push-pull converter”. 

8. NTC-04.84/8 “DC-DC converter with galvanic coupling”. 

Study of the typical circuits of IC MC34063A  for realization of step-up, step-down and inverting converter. 

9. NTC-04.84/9 “Ferromagnetic materials”. 

Study of the current-voltage characteristics of the coils with ferromagnetic cores with and without clearance. 

 

Constructively Basis consists of body, where electrical equipment, electronic boards, frontal panel and tabletop are installed. 

Interchangeable panel has standard 300 x 200 mm size. Layout of electric circuit (of laboratory work), switching connectors, a part of electrical components and control elements, which influence on the results of investigation, are placed on the front panel. 

 

Bottom part of the interchangeable panel is performed as a circuit board with connectors for ‘Basis-stand’ and it is used for switching all necessary elements of the stand during laboratory work. 

 

Most interchangeable panels are intelligent, and after turning on the stand they automatically set up measuring system, characteristics of power sources, max and min values of investigated devices, etc. 

 

Interchangeable panels have additional protection of power sources, measuring system and loading elements against user errors. 

 

Preparation of the stand for operation means the “plug&play” principle.  Instructor just has to install the selected interchangeable panel for laboratory work. This concept allows focusing students’ attention on studied circuit or device. 

 

 

Software and methodical documentation supplemented to the stand: 

• methodical and technical documentation set intended for academic staff;
• student testing program for laboratory work authorization. It tests both theoretical knowledge and knowledge regarding the laboratory work contents. As a result student gets mark.

Measuring system software allows: 

• to output up to 2 measuring channels on the same coordinate axes with individual vertical tuning of scale parameters for each of them and with common horizontal tuning of scale parameters for all channels;
• to carry out any channel spectrum analysis;
• to carry out any channel signal frequency measurement;
• to read AFC in automatic and manual mode.

Technical characteristics of the stand:

Technical characteristics of measurement system:

• laboratory stand NTC-04.84.B “Secondary power sources”;
• set of jumpers;
• USB 2,0 AM-BM cable;
• accompanying materials in electronic format;
• software.