12/19/2023 0 Comments Iv characteristics of bjt transistor![]() ![]() To understand the working of a Transistor, it is necessary to know the characteristics of semiconductors. 2 – PNP Transistor Symbol How PNP Transistor Works A PNP Transistor is considered ‘ON’ when the Source Voltage connected to the Base is low and turned ‘OFF’ when it is high.įig. The PNP Transistor symbol shows an arrow pointing inwards from Emitter to the Base which indicates the direction of the conventional current flow. The structure is opposite to NPN transistor but similar in operation. The small Base current has the ability to control large Emitter current, as it is current controlled device. The current flow is due to the movement of holes. In PNP Transistors the electrons are minority charge carriers and holes are majority charge carriers. Disadvantages of PNP Transistor What is PNP TransistorĪ PNP Transistor is a type of Bipolar Junction Transistor which is composed of three layers where ‘N’ doped layer is sandwiched between two ‘P’ doped layers.Output Characteristics for Common-Base Configuration.Input Characteristics for Common-Base Configuration.Lecture 71 - Digital-to-Analog Conversion (cont. Lecture 70 - Digital-to-Analog Conversion Lecture 68 - Simulation of a Synchronous Counter Lecture 67 - Counters: Design of a Synchronous Counter Lecture 61 - Introduction to Sequential Circuits Lecture 60 - Combinatorial Circuits: Demultiplexers, Decoders Lecture 59 - Combinatorial Circuits: Multiplexers Lecture 55 - Introduction to Digital Circuits Lecture 54 - Sinusoidal Oscillators (cont.) Lecture 53 - Sinusoidal Oscillators: Wien Bridge and Phase Shift Oscillators ![]() Lecture 51 - Applications of Schmitt Triggers Lecture 49 - Simulation of Triangle-to-Sine Converter Lecture 48 - Precision Rectifiers (cont.) ![]() Lecture 47 - Precision Rectifiers (cont.) Lecture 40 - Op-Amp Non-idealities: Effects of Bias Currents, Op-Amp Filters Lecture 39 - Op-Amp Non-idealities: Offset Voltage, Bias Currents Lecture 37 - Difference Amplifier (cont.), Instrumentation Amplifier Lecture 35 - Op-Amp Circuits: Op-Amp Buffer, Op-Amp Summer Lecture 34 - Op-Amp Circuits: Non-inverting Amplifier Lecture 33 - Op-Amp Circuits: Inverting and Non-inverting Amplifiers Lecture 31 - BJT Amplifier: General Representation of an Amplifier Lecture 30 - BJT Amplifier: Common-Emitter Amplifier (cont.) Lecture 29 - BJT Amplifier: Small Signal Model (cont.), Common-Emitter Amplifier Lecture 28 - BJT Amplifier: Small Signal Equivalent Circuit of a BJT Lecture 27 - BJT Amplifier: Improved Biasing Scheme, Adding Signal to Bias Lecture 25 - BJT Amplifier: Basic Operation Lecture 23 - Bipolar Junction Transistor: Ebers-Moll Model Lecture 18 - Diode Circuits: Clamper Circuits, Voltage Doubler Lecture 17 - Diode Circuits involving a Capacitor: Peak Detector, Clamper Circuits Lecture 16 - The Effect of Reverse Breakdown of a Diode, Zener Diodes, Voltage Limiter Lecture 14 - Diode Circuit Example with Two Diodes Lecture 11 - RC Circuits with a Square Wave Lecture 10 - RC/RL Circuits with a Piecewise Constant Source (cont.) Lecture 09 - RC/RL Circuits with a Piecewise Constant Source Lecture 08 - RC Circuits with a Step Input Voltage ![]() Lecture 04 - Useful Circuit Techniques: Norton Equivalent Circuit, Maximum Power Transfer Theorem Lecture 03 - Useful Circuit Techniques: Thevenin's Theorem Lecture 01 - A Brief History of Electronics Go to the Course Home or watch other lectures: Lecture 24 - Bipolar Junction Transistor: I-V Characteristics A circuit simulation package will be made available (as free download) to enable students to simulate circuits covered in the course and gain further insight in their functioning. Assignments are designed to help the students to test their understanding of the concepts being covered. A unique feature of the course is extensive use of circuit simulation results in order to give a realistic picture of the circuit operation and waveforms. In the digital part, combinatorial and sequential circuits will be covered. In the analog part, diode circuits, BJT amplifiers, Op Amp circuits will be covered. The course is about basic electronic circuits, both analog and digital. Mahesh Patil, Department of Electrical Engineering, IIT Bombay. ![]()
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