Transistor As A Switch Lab Experiment Using Led And Function Generator

Learn how a transistor works as a switch. This lab manual covers theory, circuit diagrams, and experimental procedures. Transistor as Switch Lab Experiment. Apply 1 Hz square wave signal to the base and ground from function generator. Apply 5V VCC to collector and ground. Observe the indication of LED and see the output waveforms on CRO.

The document summarizes an electronics lab experiment on using a bipolar junction transistor BJT as a switch. Key findings include 1. A BJT was able to act as a switch for a load LED, turning it on when saturated and off when cutoff by varying the base voltage. 2. The transistor circuit behaved as expected with collector current flowing and a near-zero voltage drop across the collector

Experiment No.4 Transistor Characteristics and switch Objective To display and study the V-I characteristics of a transistor on the oscilloscope, and examine its operation as a switch. Apparatus used 1. ST2712 board. 2. BC109 transistor. 3. Oscilloscope. 4. Function generator on board. 5. DC ammeter. 6. LED. 7.Potentiometer 5K14w. 8.

Set-up and use a transistor as an electrical switch and identify when and why it is ON and OFF. Function Generator M2kAnalog Discovery 2N3904 Transistor, 7414 Schmitt Trigger, 7404 Inverter, LED, amp the usual components. Of particular importance is the document on Electronic Switching the topic of this experiment

Lab 5 78 3 Build a simple transistor switch see figure below using a 2N3904 small signal transistor and a base resistor R B of 1 k. Use the variable voltage power supply or the function generator dc output for V in so it can be adjusted later in small increments. Use the DC power supply for the 10V source. Figure 5.3 Transistor Switch

Figure 1 Using a TTL gate to drive a 10 mA LED. Figure 2 Using a BJT to increase the current drive of a TTL gate. In Part A of this experiment, a small switching transistor will be used to drive a relay coil. This circuit, shown in Fig ure 3, is useful for controlling high- current or high voltage devices as well as circuits.

NPN and PNP transistor is same but differ in terms of their biasing and power supply polarity. 5.2.2 Transistor as a Switch If either the circuit uses the BJT transistor as a switch, then the biasing of the transistor, NPN or PNP is arranged to operate the transistor at the both sides of the I-V characteristics curves shown below.

Let's experiment with a transistor as a switch. As we already know, the transistor is a semiconductor, making it functional as a switch as well. With this method, we can easily make an LED flasher circuit with the use of capacitor charging and discharging to control when the transistor works. Using a PNP transistor as a switch.

works. Although nearly all modern digital ICs use a completely different type of transistor, the -oxide. metal-semiconductor field effect transistor MOSFET, most of the transistors in even modern analog ICs are stillBJTs. With a basic understanding . of the BJT. in hand, we design simple amplifiers using this device. We spend a bit of time

Transistor 2N2222 3mm LED Resistors W Breadboard and Connecting wires BNC Cables and Probes THEORY A transistor can function as a single-pole single-throw switch controlled by an electronic signal driving the base terminal. When the control signal on the base terminal turns the transistor off, it acts like an open switch.