Welcome to electrical and electronics engineering Q&A site...

Welcome to electrical and electronics engineering discussion website, Please login or register to continue.

Join our WhatsApp group

Subscribe To Our YouTube Channel

8 views
by
State working principle of analog to digital and digital to analog conversion.

Amazon Shopping

Please log in or register to answer this question.

1 Answer

0 votes
by

i) Analog-to-digital Converters: In a digital computer control system, the plant output (or controlled variable) is usually an analog signal, which is measured by sensors (or instruments). This analog signal has to be converted into digital signal before it is fed to the computer. The conversion of analog measurements to digital measurements involves three operations, namely sampling, quantization and encoding.

ii) Digital-to-analog Converters: In computer-controlled processes, the output of the digital controller (manipulated variable) is in digital form and must be converted to analog form before it can be communicated to the analog plant. The device that accomplishes this is called digital-to-analog converters. DAC provides reconstruction of discrete-time digital signals into continuous-time analog signals for computer interfacing output data recovery purposes such as actuators, displays, and signals synthesizers. DAC is considered prior to ADC because some ADC circuits require DACs in their implementation. A DAC may be considered a digitally controlled potentiometer that provides an output voltage or current normalized to a full-scale (FS) reference value.

Amazon Shopping

Welcome to Q&A site for electrical and electronics engineering discussion for diploma, B.E./B.Tech, M.E./M.Tech, & PhD study.
If you have a new question please ask in English.
If you want to help this community answer these questions.

Categories

Most popular tags

power motor dc circuit transformer voltage current used system phase factor resistance load synchronous energy ac induction generator electric series frequency capacitor use speed between electrical meter line type mosfet control transmission difference magnetic plant high single instrument bjt source advantages function diode machine unit winding torque amplifier define supply thyristor motors arduino field shunt maximum relay armature problem electricity time parallel on transformers types coil diagram state flow value material three starting and direction theorem method emf operating digital microprocessor test instruments efficiency ratio loss measure operation connected low applications wave effect single-phase working losses different network wattmeter temperature measuring constant signal controlled breaker device full compare drive wire resistivity logic materials machines inductance switch flux disadvantages converter transistor gain protection scr angle force core measurement number free principle rc generators law negative bridge friction open pole conductor conservation steam iron loop resistors hysteresis short computer circuits using lines secondary station battery rectifier inverter linear relays nuclear regulation reactance design analog work rotor electronics gate forces diesel damping rlc connection factors capacitors minimum insulation basic moving running systems air fault range direct main stability quality starter igbt eddy ideal ammeter rl 3-phase plants arc induced thermal error fuzzy biasing dielectric pressure balanced superposition errors rotation characteristics feedback measured electronic start alternator off back curve over solar three-phase tariff locomotive peak bias zener capacitance commutator surge rating universal potentiometer permanent mechanical copper self transducer capacity electrons memory adc excitation inductive transfer explain fuse pure harmonics application inductor internal pmmc average reaction welding resonance traction breakers designed electromagnetic si generation brushes density switching shaded rate impedance distribution methods star oscillator reluctance semiconductor simplification algebra 8085 boolean weston dynamometer insulating strength installation permeability definition fuel heating earth units neutral rms rated engineering conductors coefficient controller usually reverse excited analysis change body components
...