Figure 2.Circuit symbol of a Zener diode Procedure: 1. Zener Diode V-I Characteristics Curve As per the above analysis, it is evident that during forwarding bias Zener diode characteristics will remain the same as that of the normal diode. Theory: Zener Diode: Zener diode is a heavily doped PN junction diode… This constant-voltage characteristic leads to a number of applications of diode under reverse bias condition. The first step is to draw the circuit diagram. Figure 1 shows the V-I characteristics of a typical Zener diode. 3. Whereas after the applied voltage crosses the value of Zener voltage (Vz ) the Zener breakdown takes place. On top of that, the transition into reverse breakdown is very sharp. Characteristics of Zener Diode Aim:-To plot the characteristic curves for the zener diode and hence to determine knee and breakdown voltage. Theory/Principle: A PN junction is known as a semiconductor or crystal diode, so … You will make I-V curves for each and will see how a diode can be used as a voltage rectifier. Volt-ampere (V-I) characteristics of a pn junction or semiconductor diode is the curve between voltage across the junction and the current through the circuit. Zener Diode I-V Characteristics … Theory. To draw the characteristic curve of a Zener diode and to determine its reverse breakdown voltage. Repeat Steps 7 and 8 for the zener diode. The voltage across the diode remains reasonably constant at this time. The diagram should have a voltage source (Vext), a diode and a resistance. Calculate static and dynamic resistance of the Zener diode in both forward and reverse biased conditions … 1. Find Zener Breakdown Voltage in Reverse Biased conditions. To find the static and dynamic resistance under forward bias and reverse bias condition APPARATUS / COMPONENTS REQUIRED: Sl.No. Figure 5. Ammeter (0-30)mA 1,1 3. 4. (Zener Diode Behavior) # Application: Zener Diode as Voltage Regulator The term regulator means which regulates. In the beginning, by increasing the voltage the current change very slowly but when the voltage reaches 0.7V (for silicon) the current start to change rapidly for a … Plot the V-I characteristics and calculate the resistance levels 5. BACK TO TOP. Below Figure shows the reverse portion of a zener diode’s characteristic curve. Measure the v-i characteristics of a typical diode… V-I characteristics of PN junction and Zener diode Forward characteristics: 1. Plot VI characteristics of Zener diode 1N5221B | Experiment on multisim| Multisim tutorial |Mruduraj Theory:-A Semiconductor diode is prepared by joining P and N sections of a semi conducting material like germanium or silicon. Normally the voltage is taken along the x-axis and current along y-axis. To plot Volt-Ampere characteristics of Zener diode. In order to achieve sharp breakdown voltage, it is properly doped. Components: … Apparatus: Zener diode, Power Supply, dc milliammeter and dc voltmeter. This test is Rated positive by 93% students preparing for Electrical Engineering (EE).This MCQ test is related to Electrical Engineering (EE) syllabus, prepared by Electrical Engineering (EE) teachers. The first quadrant of the V-I characteristics curves shows the forward operation of the diode. Forward Biase V-I characteristic of P-N diode. Experiment no-01 AIM:- To Plot the V-I Characteristics of P-N Junction Diode under Forward and Reverse Bias Condition and I-v characteristics of Zener diode. Apparatus Range Quantity 1. When anode is positive with respect to cathode , diode is said to be forward biased. Connect the Circuit as per the Circuit Diagram on the bread board. rd=ΔV/ΔI Therefore from the graph we see that the diode starts conducting when the forward bias voltage exceeds around 0.6 volts (for Si diode). Apparatus:-Experimental kit and patch cords. V-I characteristics of p-n junction diode. The zener diode goes through a number of different regions or stages, of which are explained below. 2. To calculate static and dynamic resistances of the Zener diode in both forward and reverse biased conditions (before, after break down voltages). For bias voltages less than 100mV the current is less than and may be neglected in most, but not all, applications. The V-I characteristics or voltage-current characteristics of the p-n junction diode is shown in the below figure. A Zener diode is a type of diode that permits current not only in the forward direction like a normal diode, but also in the reverse direction if the voltage is larger than the breakdown voltage known as "Zener knee voltage" or "Zener voltage".The forward characteristic of the zener diode is same as that of a pn junction diode … Create a screenshot of the display. Compare the theoretical and practical values (cut-in voltage and resistances). 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