Figure 1. When anode is connected to the positive terminal of a battery/voltage source and cathode to the negative terminal, then the diode is said to be forward biased as shown in Fig. 1 (a) and its symbolic representation is shown in Fig. 1 (b).
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Figure 1: V-I Characteristics of a PN Junction Diode. VI Characteristics of pn junction diode, is a graph between the voltage applied across the terminals of a device and the current that flows through it. Fig. 1 shows the V-I characteristics of a typical PN junction diode with respect to breakdown voltage (VBR). The complete V-I
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An inductor is a coil or electromagnetic device that oppose any change in current. Inductors or coils, probably vary more in design than any other component. Basically, an inductor is a conducting wire wound on an insulator. Inductor is the name of a component. Its value is called as inductance.
What is an Inductor? Definition, Meaning, Unit, Symbol, Types, Uses & Applications Read More »
The transistor circuit which involves more than one stage (or) multiple stages of amplification is called a multistage amplifier or cascaded amplifier. The block schematic of a multistage amplifier is shown in figure below. The overall gain of a multistage amplifier is the product of gain of individual stages.
What is Multistage Amplifier (or Cascade Amplifier)? Block Diagram, Working & Gain Read More »
Strain gauge is a resistive type transducer which converts change in mechanical displacement into a proportional change in resistance. It is the most commonly used method of displacement measurement.
What is Strain Gauge? Working Principle, Diagram, Types, Derivation & Formula Read More »
Figure 1. Force acting on a Current Carrying Conductor placed in a Magnetic Field.
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An optocoupler is a solid state electronic device, which includes a light emitter, light path and a light detector enclosed in single package. It is also referred as optoisolator, since it provides electrical isolation between any two circuits.
What is an Optocoupler? Working, Block Diagram & Applications Read More »
In Single Phase Half Wave Controlled Rectifiers the load power can be controlled in only one half cycle of the input ac supply. Figure 1: Single Phase Half Wave Controlled Rectifier.
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It is possible to apply more than one input signal to an inverting amplifier. This circuit will then add all these input signals to produce their addition at the output. Such a circuit will then be called as an adder or a summing amplifier.
The voltage gain of the Voltage Follower (Buffer) circuit is 1 i.e. the output voltage will be equal to and in phase with the input voltage. In other words, the output voltage follows the input voltage. Hence the name voltage follower. Thus voltage follower is a non-inverting amplifier with a voltage gain of unity. Figure