Electronic Devices

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ELECTRONIC DEVICES

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

DIODE APPLICATIONS

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

TRANSISTORS

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

TRANSISTOR FEEDBACK CIRCUITS

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

FET FUNDAMENTALS

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

SCR TRIAC POWER CONTROL

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

POWER ELECTRONICS

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

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ProductsCodeSheetTender specsManualsVideo
ELECTRONIC DEVICES DL 3155M11
DIODE APPLICATIONS DL 3155M12
TRANSISTORS DL 3155M13
TRANSISTOR FEEDBACK CIRCUITS DL 3155E16
FET FUNDAMENTALS DL 3155E18
SCR TRIAC POWER CONTROL DL 3155E29
POWER ELECTRONICS DL 3155E22