Electronic Circuits and Diagram-Electronics Projects and Design

AIM To design and set up a voltage regulator using Zener diode COMPONENTS AND EQUIPMENTS   1. Bridge rectifier circuit 2. Zener diode (6.2 volt) 3. Resistors 4. Capacitors 5. Voltmeter 6. Ammeter 7. Rheostat CIRCUIT DIAGRAM DESIGN To get a 5.6 V as output, select SZ 5.6 as Zener diode .Take load current as 5 mA. Load current =output voltage\output current = 5.6/5 mA = 1.1 K (use 1.2 K) R1 is used to limit the current .Take 1 K resistor as R1. THEORY Zener diode is a P-N junction diode specially designed to operate in the reverse biased…

AIM  To realize various clamping circuits using diodes and capacitors   COMPONENTS AND EQUIPMENTS   1. Diode 2. Capacitor 3. DC power supply 4. CRO   CIRCUIT DIAGRAMS AND TRANSFER CHARACTERISTICS   1.      NEGATIVE  CLAMPER WITH 0.7 VOLTS   2.      POSITIVE CLAMPER WITH LEVEL – 0.7 VOLTS 3.      POSITIVE CLAMPER WITH LEVEL  -5 V 4.      NEGATIVE CLAMPER WITH LEVEL +5 V   5.      POSITIVE CLAMPER WITH 5 V   THEORY A clamping circuit is simply a level shifter. It shifts the level of an input waveform to a predesigned level. Now consider a positive clamper circuit..During the negative half cycle,…

AIM  To set the diode clipping circuits   COMPONENTS AND EQUIPMENTS REQUIRED 1. Diodes 2. Resistors 3. DC sources 4. Signal generator 5. CRO   CIRCUIT DIAGRAMS   1.      POSITIVE CLIPPER AT  0.6V TRANSFER CHARECTERISTICS 2.      NEGETIVE CLIPPER AT -0.6 VOLTS     TRANSFER CHARECTERISTICS       3.      POSITIVE CLIPPER AT  3 V   TRANSFER CHARECTERISTICS           4.      NEGETIVE CLIPPER AT 3V 5.          TRANSFER CHARACTERISTICS                   6.      TWO LEVEL CLIPPER(SLICER) AT  3 V AND 5 V   TRANSFER CHARACTERISTICS     THEORY                Ideally…

AIM To implement the half wave rectifier and full wave rectifier using 1N 4007 diode COMPONENTS AND EQUIPMENTS REQUIRED 1. Diodes 2. Centre tap transformer 3. Resistors 4. CRO CIRCUIT DIAGRAM HALF WAVE RECTIFIER FULL WAVE CENTRE TAP RECIFIER FULL WAVE BRIDGE RECTIFIER WAVEFORMS HALF WAVE RECTIFIER WITHOUT CAPACITOR FILTER WITH CAPACITOR FILTER FULL WAVE RECTIFIER WITHOUT CAPACITOR FILTER FULL WAVE RECTIFIER WITH CAPACITOR FILTER THEORY A diode is using to pass current in a single direction. Alternating current is a current which flows in both directions. In some applications we need dc power supply. A method to obtain dc…

AIM  To plot the reverse characteristics of zener diode and to find the breakdown voltage   COMPONENTS AND EQUIPMENTS NEEDED   1. 6.2 V zener diode 2. Resistors 3. Variable dc power supply 4. Voltmeter 5. Ammeter   CIRCUIT DIAGRAM   THEORY                   Zener diode is a P-N junction diode specially designed to operate in the reverse biased mode. It is acting as normal diode while forward biasing. It has a particular voltage known as break down voltage, at which the diode break downs while reverse biased. In the case of normal diodes the diode damages at the break…

AIM To plot the characteristics of a pn diode and to find its the cut in voltage and the dynamic resistance. COMPONENTS AND EQUIPMENTS REQUIRED 1. DC supply 2. Diodes 3. Voltmeter 4. Ammeter 5. Rheostat CIRCUIT DIAGRAM THEORY A diode is the basic electronic component. It’s property is that it can conduct only in one direction. A diode can be made by joining a p type semiconductor and an n type semiconductor. At the junction point there will be a voltage drop due to the migration of carriers. The voltage at this barrier is known as barrier potential. Ideally…