The design and construction of electronic circuits
to solve practical problems is an essential
technique in the fields of electronic engineering
and computer engineering.

With this board the students can study the
properties of the pure and doped semiconductor
material, the properties and the electric
behaviour of a joint P‐N and how a joint P‐N is
realized to be able to describe with the right
terminology the joint P‐I behaviour.

**THEORETICAL TOPICS**

• Physics of the semiconductors and joint P‐N

• Semi conductive material

• Formation of a joint P‐N

• Polarization of a joint P‐N

• The ideal diode and the real diode

• Diode in dc circuits

• Check of the integrity of a diode through an
ohmmeter

• Direct polarization

• Inverse polarization

• The Zener diode

• The diode as stabilizer

• The LED diode

• Fault simulation

**CIRCUIT BLOCKS**

• Direct and inverse polarization of a diode

• Voltage at the diode ends

• Minimum and maximum voltages

• Minimum and maximum voltages with series
connected diodes

• Characteristics of the Zener diode

• Zener diode as a voltage stabilizer

• Voltage value on a Zener diode

• Characteristics of a LED diode

• Seven segment digital display

Complete with theoretical and practical manual.

Dimensions of the board: 297x260mm

**DL 3155M11**

The design and construction of electronic circuits
to solve practical problems is an essential
technique in the fields of electronic engineering
and computer engineering.

With this board the students can study the
various applications of the diodes, from the
clippingand clamping circuits up to the rectifiers
with filters and their use to produce a continuous
power supply dual or stabilized.

**THEORETICAL TOPICS**

• Behaviour of the diode inserted in circuits that
enclose generators of variable signals

• Simple and double clipper circuits

• Clamper circuits

• Half‐wave voltage doublers

• Simple half‐wave rectifier circuit

• Double half‐wave rectifier circuit

• Bridge rectifier circuit

• Power supplies

• Filters

• Regulators

• Fault simulation

**CIRCUIT BLOCKS**

• Clipping circuit

• Clamping circuit

• One half‐wave voltage doubler

• Simple and double half‐wave rectifier

• Diode bridge rectifier (Graetz bridge) with
capacitive input filter

• Dual power supply

• Stabilized power supply

Complete with theoretical and practical manual.

Dimensions of the board: 297x260mm

**DL 3155M12**

The design and construction of electronic circuits
to solve practical problems is an essential
technique in the fields of electronic engineering
and computer engineering.

With this board the students can study the
characteristics of the transistor, how is polarized
and its use as a voltage regulator or switch.

**THEORETICAL TOPICS**

• The transistor currents

• Input and output characteristics

• Collector feedback polarization

• Voltage divider polarization

• Emitter polarization

• The transistor as a switch

• The transistor as a regulator

• Reading and use of technical specifications
taken from the catalogues

• Fault simulation

**CIRCUIT BLOCKS**

• Verification of the integrity of the
junctions of a BJT transistor

• Recording of the input and output
characteristics of a BJT transistor in the
common emitter configuration

• Recording of the output characteristics of
a BJT transistor in the common base
configuration

• The base polarization of a BJT transistor

• The emitter polarization of a BJT
transistor

• The polarization of a BJT transistor with
voltage divider

• The polarization of the collector feedback
BJT transistor

• Operation of a BJT transistor as a switch

• Voltage regulator with parallel transistor

• Voltage regulator with series transistor

Complete with theoretical and practical manual.

Dimensions of the board: 297x260mm

**DL 3155M13**

** Theoretical topics:**

• Typical quantities and basic
configurations of a feedback
amplifier

• Feedback of a multistage
amplifier

• The effects of series feedback on
ac gain and on input and output
impedance

• The effects of negative series
feedback on bandwidth

• The effects of shunt feedback on
ac gain and on input and output
impedance

• Multistage shunt-series and
series-shunt Feedback

• The shunt-series multistage
amplifier current gain and output
impedance

• Series-shunt multistage amplifier
voltage gain and output
impedance

• Differential amplifier operation

• Single-ended and differential
gain characteristic

• Common mode gain and
rejection ratio

• Fault simulation

**Circuit blocks:**
• Series feedback / shunt feedback

• Multistage shunt-series feedback

• Attenuator

• Multistage series-shunt feedback

• Differential amplifier

**DL 3155E16**

The design and construction of electronic circuits
to solve practical problems is an essential
technique in the fields of electronic engineering
and computer engineering.

With this board the students can study the
characteristics of the JFET transistor with variants
as MOSFET and UJT and its application as in
Colpitts and Harley oscillators, in thermistor and
photo resistor sensors and in the
transmitter/receiver of light through the optical
fiber.

**THEORETICAL TOPICS**

• Junction FET

• JFET operating characteristics

• The effect of gate bias on pinch‐off

• JFET dynamic characteristic curves

• JFET amplifier fundamentals

• JFET amplifier dc operation

• JFET amplifier ac operation

• JFET used as current sources

• Dual Gate MOSFET

• MOSFET fundamentals and modes of operation

• MOSFET voltage amplifier

• Unijunction transistors fundamentals

• UJT operating characteristics

• UJT waveform generation

• Hartley and Colpitts oscillators fundamentals

• Hartley oscillator operation

• Colpitts oscillator operation

• Transducers fundamentals

• Thermistor operation

• Photo resistor operation

• Fibre optic light transfer

• Fault simulation

**CIRCUIT BLOCKS**

• JFET

• JFET Amplifier

• JFET Current Source

• Dual Gate MOSFET

• Unijunction Transistor

• Thermistor

• Colpitts / Hartley Oscillator

• Photo resistor

• Fibre Optic Link

Complete with theoretical and practical manual.

Dimensions of the board: 297x260mm

**DL 3155E18**

The design and construction of electronic circuits
to solve practical problems is an essential
technique in the fields of electronic engineering
and computer engineering.

With this board the students can study the
operation of the power components such as SCR
and TRIAC and check how do they apply in power
control circuits and in phase control circuits (half‐
wave and full wave).

**THEORETICAL TOPICS**

• Thyristor component familiarization

• Thyristor circuit fundamentals

• Test a Silicon Controlled Rectifier

• SCR DC operation

• Gate trigger voltage and holding current

• SCR half‐wave rectifier

• SCR control of a half‐wave rectifier

• SCR control of a full‐wave rectifier

• UJT characteristics

• UJT half‐wave and full‐wave phase control

• Bidirectional conduction

• The four triggering modes

• Half‐wave and full‐wave phase control

• Fault simulation

**CIRCUIT BLOCKS**

• Silicon Controlled Rectifier (SCR)

• Triac AC power control circuit

• SCR half‐wave and full‐wave circuit

• SCR and UJT half‐wave and full‐wave Motor

Complete with theoretical and practical manual

Dimensions of the board: 297x260mm

**DL 3155E29**

The design and construction of electronic circuits
to solve practical problems is an essential
technique in the fields of electronic engineering
and computer engineering.

With this card, the students can study the
characteristics and operations of the power
electronics components, as the transistor in the
bipolar and darlington configurations, MOFSET
and IGBT, SCR and TRIAC,The thyristor GTO, VDR
and DIAC.

**THEORETICAL TOPICS**

• Structure of the bipolar transistor

• The Darlington transistor

• The MOSFET

• The IGBT

• The SCR and the TRIAC

• The GTO thyristor

• Operation with resistive load

• Operation with inductive load

• The VDR and the DIAC

• Fault simulation

**CIRCUIT BLOCKS**

• Bipolar transistor

• IGBT

• MOSFET

• SCR & TRIACS

• Darlington transistor

• GTO

• VDR & DIAC

• Driver

Complete with theoretical and practical manual.

Dimensions of the board: 297x260mm

**DL 3155E22**