Figure 1: Roots Blower.
The roots blower compressor consists of two rotors or lobes arranged on two separate axes as shown in figure 1. One of the rotors is directly connected to a drive and the other is driven by gear connected to the first.
What is Unijunction Transistor (UJT)? Working, Circuit Diagram, Symbol & Characteristics
A unijunction transistor is a three-terminal device similar to a bipolar transistor but it has some unique characteristics that are quite different than ordinary PNP, NPN or field effect transistors. These characteristics make the UJT suitable in switching applications.
Figure 1: Unijunction Transistor (UJT).
What is Differential Amplifier using Op-Amp? Circuit Diagram, Derivation & Working
Figure (1): Differential Amplifier.
Differential (or Difference) amplifier or a subtractor is defined as a circuit, which amplifies the difference between two input signals.
What is Voltage to Current Converter (V to I Converter) using Op-Amp? Circuit Diagram, Derivation & Working
A voltage to current converter is a voltage-controlled current source. An ideal voltage controlled current source has two characteristics.
What is Frequency Modulation (FM)? Definition, Derivation, Waveform & Formula
The process of modulation in which the frequency of the carrier signal is changed according to the instantaneous magnitude of the modulating signal is known as frequency modulation.
Fig. 1: Frequency Modulation
What is Radio Receiver? Block Diagram & Working
A radio receiver is a device that receives the radio waves propagated by a desired radio transmitter, recovers modulating signals from these waves and gives sound output.
What is Superheterodyne Receiver? Block Diagram & Working
Superheterodyne receivers have been developed to overcome the shortcomings of straight radio receivers. All modern radio receivers operate on superheterodyne principle.
What is Communication System? Block Diagram & Working
Communication by means of sound waves is possible over short distances. If the sound waves are converted into electrical signals, then these signals can be made to travel long distances through transmission lines.
What is Amplitude Modulation (AM)? Definition, Derivation, Waveform & Formula
When the peak amplitude of a sinusoidal carrier is changed in proportion to instantaneous amplitude of the modulating signal, amplitude modulated wave is obtained. Fig. 1 shows the principle of amplitude modulation.
What is RC Integrator? Circuit Diagram, Working & Waveforms
Figure 1: RC Integrator Circuit.
The RC integrator circuit contains a capacitor C and a resistor R, and their positions are shown in Fig. 1. Here the values of these elements are so arranged that the capacitive reactance offered at the operating signal frequency is very small in comparison to the value of the resistor so that the circuit current is approximately in phase to the input voltage.