Construction of average responding voltmeter
The basic construction of average responding voltmeter is shown in above fig. at the input side of an unknown voltage to be measured is applied. The blocking capacitor is used to block dc signals entering into the
Difference between PCM and DPCM
Following are the difference between PCM (pulse code modulation.) and DPCM (differential pulse code modulation) PCM DPCM The PCM stands for pulse code modulation. The DPCM stands for differential pulse code modulation. The PCM (pulse code modulation) can
What do you mean by ADC (Analog to digital converter)?
The analog to digital converter (ADC) is a device that converts a continuous quantity to a discrete time digital representation. It also provides isolated measurements. This is an electronic device which converts an input analog current or
Block diagram of process control system
The figure shows the block diagram of close loop system or process control system. The process control system consists of process or plant, feedback elements, error detector, automatic controller, actuator or control element. Plant or Process :
Difference between open loop control system and close loop control system
Following are the difference between open loop control system and close loop control system Open loop control system Close loop control system Its operation is degraded if non linearity is present. Its operation is not independent on
Advantages and disadvantages of RC phase shift oscillator
There are some important advantages of RC phase shift oscillators are given below, It is useful for frequencies in the audio range. Simplicity of the circuit. They have a wide range of frequency. The RC phase shift
Difference between amplifier and oscillators
The main differences between amplifier and oscillators Amplifier oscillators Amplifier is an electronic circuit which gives output as amplified form of input. Oscillator is an electronic circuit which gives output without application of input. The amplifier does not
Need of programmable logic controller (PLC) in automation
PLC is used in the fully automated industries or plants or process, the actual processes handled and controlled by the controllers which are nothing but the programming logic controllers that means PLC plays a very important role
Block diagram of transistor series voltage regulator
The block diagram of transistor series voltage regulator is shown in above figure. In the transistor series voltage regulator the control element is connected in series with the load, due to this circuit is known as series
What is function of a resistor in electronic circuits?
Some important functions of resistor in electronic circuits is given below. Resistor set up the proper value of voltage across it due to IRdrop. Resistors play an important role to limit the current in any electronic circuits. Resistor