What do you mean by direct coupling, Electrical Engineering

Assignment Help:

Q What do you mean by Direct coupling?

In this method the a.c. output signal is fed directly to the next stage. No reactance is included in this coupling network. Special d.c. voltage level circuits are used to match the output d.c. levels. It is used when amplification of low frequency signals is to be done. Further, coupling devices such as capacitors, transformers cannot be used at low frequencies because their size becomes very large. The amplifiers using this coupling scheme are called direct-coupled amplifiers or d.c. amplifiers.


Related Discussions:- What do you mean by direct coupling

Hall effect, Describe hall effect?also describe it''s mathematical analysis...

Describe hall effect?also describe it''s mathematical analysis and it''s properties

8 bit data to memory - move immediate instruction , 8 bit  data to memory ...

8 bit  data to memory This form  of the  instruction is used to  copy 8 bit  data directly  to the memory  location pointed  by register pair HL.  The instruction  format is

Determine total magnetic flux, Determine Total magnetic flux: A ring i...

Determine Total magnetic flux: A ring is composed of three sections. The cross-sectional area is 0.001 m2 for each section. The mean lengths of each section are l a = 0.3 m,

Relative permeability of the cast steel, A closed magnetic circuit of cast ...

A closed magnetic circuit of cast steel having a 6cm long path of cross-sectional area 1cm 2 and a 2 cm path of cross-sectional area 0.5 cm 2 . A coil of 200 turns is wound around

Define electric current, Define Electric current If an electric pressur...

Define Electric current If an electric pressure or voltage is applied across any material there is a tendency for electrons to move in a certain direction. This movement of fre

Working of closed cycle and open cycle brayton cycle, Give the layout of a ...

Give the layout of a modern steam power plant and illustrate it briefly. With the help of schematic diagrams illustrate the construction and basic working of closed cycle and op

Define the time constant of the circuit, A coil of inductance 0.04 H and re...

A coil of inductance 0.04 H and resistance 10? is connected to a 120 V, d.c. supply. Verify (a)  The final value of current     (b)  The time constant of the circuit (c)

Rectifiers and inverters, Normal 0 false false false EN...

Normal 0 false false false EN-IN X-NONE X-NONE RECTIFIERS AND INVERTERS

Present and future trends in power systems, Q. Present and Future Trends in...

Q. Present and Future Trends in power systems? According to the Edison Electric Institute, electricity's share of U.S. primary energy was almost 36% in 1989, and it is likely t

Describe CCIT hierarchical structure, Q. Describe CCITT  hierarchical  stru...

Q. Describe CCITT  hierarchical  structure  of  switching  and  routing  using  block schematic.  Ans: Hierarchical network are capable of handling heavy traffic where req

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd