The definition of biasing in electronic circuits

[bhatt_190487]

i want to the definition of biasing provided to electronic circuits?

 

[konarkk]

Re: biasing

Biasing means providing a voltage that overcomes or restricts the flow of carrier in semiconductor.

No current will flow when any semiconductor is ubiased

 

[Miguel Gaspar]

Re: biasing

bias 1. Any parameter of which the value is set to a predetermined level to establish a threshold or operating point. Although it is common to think of bias currents and bias voltages, other parameters (e.g., capacitance, resistance, illumination, magnetic intensity, etc.) can serve as biases. 2. In a high-fidelity audio system, a circuit in a tape recorder/player that optimizes performance for a particular type of recording tape.

Bias is energize de electronic circuit, because we use active devices that need usually energy direct.

 

[its_thepip]

Re: biasing

Biasing, in general. means to apply a precalculated voltage or current to an electronic circuit to set the appropriate bias/quiscent point..

Now, why do we bias a ckt is ...... Whenever we design a circuit , we expect that the signal gives us symmetrical and equal output in both the halfcycles of the input.....So, we find a point where , if the ckt is operated, there will be equal maximum swing on both the sides ..... As such, this point is the bias point....

Also, for BJT to act as amplifier, it should be biased in the active region and more strictly in the centree of the active region so as to allow max swing of output

 

[shaikhsarfraz]

Re: biasing

hi,
Biasing is used to set the output of a particular circuit to a particular result.

To be more clear biasing is done to achieve specific goals.
Like in MOS device circuits biasing is done to keep the transistors in saturation.


thanks
sarfraz