EEC470 Series Electricity and Electronics Constructor Kits · Electricity and Electronics...

EEC470 Series

of 9 10/2013

Electricity and Electronics Constructor Kits

The Electricity and Electronics Constructor EEC470 series is a structured practical training pro-

gramme comprising an unpowered construction deck (EEC470) and a set of educational kits.

Each kit contains a manual of student assignments

and a selection of components, supplied in a con-

ventional storage tray. EEC470 offers extremely ver-

satile facilities for the rapid and easy assembly of all

types of circuit, with provision for discrete compo-

nents, digital and analogue integrated circuits and

high power devices.

The robust, reliable circuit connectors incorporated

in the Constructor allow the user to assemble a cir-

cuit almost as quickly as it can be designed. The log-

ical layout of the components aids comprehension

of the theoretical principles involved. The EEC470

requires various d.c. and a.c. power supply inputs, all

of which can be provided by the Feedback PS445

power supply unit.

Several different kits are available, covering basic

electronics, amplifiers, power supplies and control of

machines making the EEC470 an ideal option for the

teaching of the subject from first principles. The only

test instruments required are those normally found in

electronics laboratories.

The kits available are as follows:

• EC471-2 Basic Electricity and Electronics

• EEC473-4 Amplifiers and Electronic Circuit

Applications

• EEC475 Power Supplies

• EEC476 Electronic Control of Machines

• EEC477 Optoelectronics

Features

• Designed for vocational and industrial training

• Rapid circuit construction

• Wide range of kits covering key subject areas

• Hands-on student assignments

• Simplifies the study of basic components and circuits

• Compact construction for easy use and storage

Each kit is housed in a storage tray containing:

• A set of discrete components appropriate to the course, plugged into the tray

• A shadow diagram of the components and identifying information

The kits are used with the EEC470 construction deck which provides all the necessary connect-

ing leads.

EEC470 Series

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The EEC470 series of Electricity and Electronics Constructor kits has been carefully designed

to provide a complete and thorough foundation course in electro-technology and basic

electronics.

Manual of Assignments / Student CoursewareManual of Assignments / Student CoursewareManual of Assignments / Student CoursewareManual of Assignments / Student Courseware

The course material is contained in the detailed and comprehensive manuals that accompany

each kit. Each manual is laid out in such a way that it can be used either in a group teaching situ-

ation or by individual students employing self-paced learning.

Particular emphasis is laid on the need for the students to discover the effects for themselves,

rather than just proving stated theory.

Assignments in the manuals contain, where applicable, sections under the following Assignments in the manuals contain, where applicable, sections under the following Assignments in the manuals contain, where applicable, sections under the following Assignments in the manuals contain, where applicable, sections under the following headings:headings:headings:headings:

• Objectives – Stating the educational aims of the assignments

• Introduction – Providing a brief lead-in to the topic

• Experimental Procedure – Two or three practical activities

• Practical Considerations and Applications – Relating the work studied to realistic applications

• Summary – Of the main conclusions

• Exercise – To test and reinforce understanding of the subject matter

In addition, numerous questions are posed throughout the assignments which direct the student,

step by step, to a thorough knowledge of the topic.

Construction Deck - EEC470

The deck allows all the circuits described in the

student assignment manuals to be built using the

supplied connecting leads and the components

provided in the individual kits.

The following power inputs are required:

D.C.: 0-20 V variable @ 350 mA

A.C.: 5, 10, 15, 20, 25 V @ 300 mA

Component Set - EEC470-001

To enable users to use the constructor without purchasing all of the kits, a blank set of carriers is

available. The set comprises 30 x 2 pin component carriers, 15 x 3 pin component carriers and

8 x 4 pin component carriers.

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Power Supply – 92-445

The Feedback 92-445 power supply provides the necessary power requirements in one compact

unit, specifically designed for use with the EEC470 Construction Deck. Due to its open board

construction, it is also suitable for student investigation of power supply characteristic behaviour.

Specification

Outputs

Stabilised 5 V ± 0.2 V @ 1 A max

Load regulation typically 0.1 %

Noise and ripple < 10 mV

Stabilised ± 15 V ± 0.6 V @ 0.3 A each rail


Noise and ripple < 10 mV

Stabilised variable 0-20 V @ 0.35 A max


Noise and ripple typically 5 mV

A.C. voltages 5, 10, 15, 20 and 25 V rms from a tapped winding @ 0.3 A total output current. Load

regulation typically 6 % for 25 V output, 16 % for 5 V output.

Output protection

D.C. outputs have overvoltage, overcurrent and reverse voltage protection.

A.C. outputs are short circuit protected by 300 mA fuses (20 mm x 5 mm).

LED indication is provided of overcurrent and tripped overvoltage circuits on all D.C. outputs.

Connections

2 mm and 4 mm sockets are provided for connection to the A.C. and D.C. outputs.

Permanently connected line input cord; 3 wire, live, neutral and earth.

Line Supply Requirements

100, 110, 120, 200, 220, 240 V A.C. selectable by voltage selector on the PCB.

Fused at 0.25 A for 200 V – 250 V A.C. operation and 0.5 A for 100-125 V A.C. operation by anti-

surge 20 mm x 5 mm fuses.

Rating: 50 VA 50/60 Hz

Basic Electricity and Electronics – EEC471-2

A kit of Basic Electricity & Electronics components, mounted on small printed circuit carriers,

which are housed in a convenient storage tray with identification information. The kit introduces

the student to the basic principles of electrical theory and circuits and the physical and electrical

characteristics of commonly used semiconductor devices and circuits. A supporting manual is

supplied that begins with an introduction to the general concepts of electricity and electronics

followed by a series practical assignments. The circuits are constructed on the EEC470 construc-

tion deck. The deck's layout allows swift and simple circuit construction and the high quality be-

ryllium copper spring contacts have a self-cleaning action to ensure a long life of good electrical

contact. The combination of EEC470 and EEC471-2 requires a 92-445 Power Supply.

EEC470 Series

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Basic Electricity and Electronics – EEC471-2

Features

• Designed for Vocational and Industrial

Training rapid circuit construction

• A wide range of kits can be updated or

added to as required

• 'Hands-on' student assignments

• Simplifies the study of basic components

and circuits through to advanced systems

• Compact construction for easy use and

storage

Subject Area

• Resistance

• Resistor Networks

• Resistors in Series and

Parallel

• Superposition Theorem

• Thévenin’s Theorem

• Power

• Capacitance

• Capacitors in Series and

Parallel

• Time Constant

• Electromagnetic Induction

• Inductance

• RMS Value of an AC

Waveform

• Resistance in AC Circuits

• Capacitance in AC Circuits

• Inductance in AC Circuits

• Capacitive and Inductive

Reactance

• The series CR and LR

circuits

• Impedance of a Series CR

Circuit

• Impedance of a Series LR

Circuit

• Impedance of a Series

LCR Circuit

• Parallel Impedances

• Series Resonance

• Power in AC Circuits

• Parallel Resonance

• The Transformer

• The Semiconductor Diode

• Half-Wave Rectification

• Full-Wave Rectification

• The Zener Diode

• Transistor Familiarisation

Amplifiers and Electronic Circuit Applications – EEC473-4

This kit introduces common semiconductor amplifier configurations that enable the student to

investigate their characteristics and allow an appreciation of their use. The kit comprises compo-

nents used for amplifier and electronic circuit applications, mounted on small printed circuit car-

riers, which are housed in a convenient storage tray with identification information.

The supplied student manual contains assignment work that applies the basic principles learnt to

construct and test a wide range of common amplifiers, oscillators and control circuits.

The circuits are constructed on the EEC470 construction deck. The deck's layout allows swift

and simple circuit construction and the high quality beryllium copper spring contacts have a self-

cleaning action to ensure a long life of good electrical contact.

The combination of EEC470 and EEC473-4 requires a 92-445 Power Supply.

Subject Area

• Electronic amplifiers

• AC and DC Gain

• Amplitude Distortion

• Frequency and Phase

Distortion

• Negative Feedback

• Frequency Response

• The AC Amplifier

• The Operational Amplifier

• Push-pull Amplifiers

• Passive Attenuators

• Common-emitter Amplifier

• Emitter Follower

• Complementary Push-pull

Amplifier

• Differential Amplifier

• Operational Amplifier

• Astable Multivibrator

• Phase-Shift Oscillator

• The Schmitt Trigger

• Voltage Regulator

• TTL NAND and Exclusive-

OR Gates

• Set-Reset Flip Flop

• D-type Flip Flop • Clocked SR and J-K Flip Flop

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Power Supplies – EEC475 This kit shows the operation and basic design principles of various types of power supply. The

student can make measurements of power supply performance, such as regulation, efficiency

and current limit characteristics.

The circuit operation can be studied from oscilloscope waveforms. A student’s assignment man-

ual, giving step-by-step instruction and patching diagrams is supplied. Twenty one assignments

provide a comprehensive course of study.

The kit comprises a selection of passive and active power supply components, housed in a con-

venient storage tray with identification information. The EEC475 is used in conjunction with the

EEC470 deck to provide a course of study that brings together practical experience and the re-

lated theoretical concepts, ranging from basic principles to power supply design.

The combination of EEC470 and EEC475 requires a 92-445 Power Supply.

Features


Training Rapid circuit construction

• Wide range of kits can be updated or






storage

Subject Area

• Rectification

• Rectifier and Transformer Measurement

of Voltages

• Capacitive filters

• Voltage and current waveforms with or

without reservoir capacitor

• Factors effecting ripple voltage

• Voltage doublers

• Half wave voltage doubler

• Full wave voltage doubler

• Simple voltage stabilisers

• Zener diode stabiliser characteristics

• Measurement of Ro

• Regulation and efficiency

• Current limiting

• Current fold-back

• Over-voltage protection by ‘crowbar’

• Variable dc supplies

• Variation of regulated output

• Regulation measurement

• Performance of a Feedback regulator

• Integrated circuit voltage regulator

• Regulator operation

• Observation of thermal shutdown

• Inverters and Converters

• Switch-mode regulator

• Observing a switching waveform

• Measurement

• Calculation of output voltage

• Efficiency

• Switching frequency

EEC470 Series

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Electronic Control of Machines – EEC476 This kit shows the operation of various types of machine control circuit. It comprises two boards,

one of which carries a universal machine which may be controlled by ac or dc voltages. The

content of the manual is aimed at giving a practical understanding of machine control using a

non-mathematic approach to the subject.

The kit introduces the student to device characteristics and dc motor control methods, including

PWM motor control. The hardware includes a dc motor module with optical incremental encod-

er and eddy current brake. The circuits are constructed on the EEC470 construction deck.

The deck's layout allows swift and simple circuit construction and the high quality beryllium cop-

per spring contacts have a self-cleaning action to ensure a long life of good electrical contact.


Features









storage

Subject Area

• Characteristics and operation of the power

MOSFET

• Silicon controlled rectifier (SCR) D.C.

characteristics

• Forward and Reverse characteristics

• The unijunction transistor

• Zener diode stabilizer characteristics

• UJT switching action

• UJT relaxation oscillator

• Phase controlled UJT oscillator

• SCR circuits with resistive and complex loads

• Phase angle control

• Phase control of inductive load

• Effect of the flywheel diode

• Characteristics of the TRIAC

• Blocking characteristic

• Positive and negative

• Speed measurement methods

• Incremental encoder calibration

• Tachogenerator calibration procedure

• Frequency to voltage conversion

• Electronic Tachogenerator calibration

• Phase angle control of a D.C. motor

• Speed control of a D.C. motor

• Speed and torque of a D.C. motor

• Feedback control of a D.C. motor

• Linearity of speed control

• Speed-torque characteristic

• Pulse Width Modulation

• Pulse width control of power on-load

• Pulse Width Modulation Control of a D.C.

Motor

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EEC477 – Optoelectronics

This kit of optoelectronic components introduces the student to the characteristics of various

Optical devices like light emitting diodes (LEDs), light dependent resistors (LDRs) and photodi-

odes. These are mounted on small printed circuit carriers, which are housed in a convenient

storage tray with identification information.

The kit contains

• Light emitters: Tungsten Lamp

• LEDs: red, green, yellow, bi-colour

(red/green), red, 3mm pair (2mA/ standard).

• Photo detectors: photodiode,

phototransistor, light activated switch, light

dependent resistor (LDR).

• Optocouplers: transistor output, type 4N25.

Darlington output, Type 4N32.

• Driver modules: Type 741 Op amp, flasher

module using type 555 timer, type LM3909

flasher IC.

• Fibre optic link: A short length of suitably

terminated fibre optic cable.

• Active and passive components: A range of

bi-polar transistors, diodes, capacitors and

resistors.

The circuits are constructed on the EEC470 construction deck. The deck's layout allows swift

and simple circuit construction and the high quality beryllium copper spring contacts have a self-

cleaning action to ensure a long life of good electrical contact.


Features









storage

Subject Area

• Light emitter characteristics

• Light emitter driving requirements

• LEDs in Series and Parallel

• LEDs in AC circuits

• Flasher circuits

• Photo-detection circuits

• Optocouplers

Specification

EEC470 Construction Deck

A free standing circuit construction deck with provision for connection to an external power sup-

ply and peripheral equipment comprising:

A circuit building section with 48 positions, each position having 4 x 2 mm sockets, and accept-

ing the connecting leads, and discrete components supplied with each kit.

3 separate bus lines, each having 19 x 2 mm sockets with a 4 mm socket at one end.

EEC470 Series

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9 x 4 mm sockets to accept connections from external peripheral equipment and test instru-

ments.

A power component section accepting up to 2 devices, each having integral heat sinks.

7 x 4 mm labeled sockets to accept external power supply connections.

An IC module section for a 16-pin carrier.

Set of 2 mm and 4 mm connecting leads.

Weight and Dimensions

EEC470 Width: 220 mm, Height: 25 mm, Depth: 295 mm

All kits are supplied in standard trays, but vary in weight.

Width: 220 mm, Height: 45 mm, Depth: 295 mm

Weight:

EEC470: 0.5 kg

EEC471: 0.75 kg

EEC472: 0.75 kg

EEC473: 0.75 kg

EEC474: 0.75 kg

EEG475: 0.75 kg

EEC476: 4.0 kg

EEC477: 0.75 kg

92-445 Width: 296 mm, Height: 72 mm, Depth: 222 mm,

Weight: 1.8 kg

Ordering Information

Order: EEC470 Electricity and Electronics Constructor Deck

Order: EEC471-2 Basic Electricity and Electronics

Order: EEC473-4 Amplifiers and Circuit Applications

Order: EEC475 Power Supplies

Order: EEC476 Electronic Control of Machines

Order: EEC477 Optoelectronics Trainer

Order: EEC470-001 Blank Carriers for use on EEC470 (30 x 2 pin, 15 x 3 pin, 8 x 4 pin)

Order: 92-445 Power Supply 0-20 V dc variable; ±15 V dc; +5 V d.c.; 5, 10, 15, 20, 25 V a.c.

EEC470 Series

of 9 10/2013

Tender Specification EEC470. Circuit construction deck for use with associated kits, incorporating patch board with

provision for discrete components, integrated circuits and high power devices. Supplied with

24 x 2 mm, 4 x 2/4 mm and 9 x 4 mm connecting leads.

EEC471-2. A kit of Basic Electricity components for use with circuit construction deck EEC470

to study electrical circuit theory and the physical and electrical characteristics of commonly

used semi-conductor components. To include manual of assignments.

EEC473-4. A kit of amplifier components for use with circuit construction deck EEC470 to

study common semiconductor amplifier configurations, their characteristics and uses in circuit

design. To include manual of assignments.

EEC475. A kit of power supplies components for use with circuit construction deck EEC470 to

study the operation and basic design principles of various types of power supply. To include

manual of assignments.

EEC476. A kit of electronic control components and universal machine for use with circuit

construction deck. EEC470 to show the construction and operation of various types of ma-

chine control circuit whilst controlling a rotating machine. To include manual of instructions.

EEC477. A kit of optoelectronic components for use with circuit construction deck EEC470 to

show the construction and operation of various types of circuit utilising optical technology. To

include manual of instructions.

92-445. Power Supply providing variable 0-20 V d.c. output @ 350 mA; ±15 V d.c. @ 300 mA;

+5 V d.c. @ 1 A; 5, 10, 15, 20, 25 V a.c. rms @ 300 mA.

Feedback InstrumentsFeedback InstrumentsFeedback InstrumentsFeedback Instruments

5 & 6 Warren Court

Park Road, Crowborough

East Sussex

TN6 2QX

United Kingdom

Tel: +44 1892 653322

Sales: [email protected]

Website: www.feedback-instruments.com

Feedback reserves the right to change these specifications without notice

For further information on Feedback equipment please contact ...

EEC470 Series Electricity and Electronics Constructor Kits · Electricity and Electronics...

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