It is defined as the degree of change in operating point due to variation in temperature. There are three variables which are temperature dependent.

**Stability Factors**

It is
defined as the degree of change in operating point due to variation in
temperature. There are three variables which are temperature dependent. Three
stability factors are defined as follows,

**Stability factor S:**

The above
equation can be considered as a standard equation for the derivation of
stability factors of other biasing circuits.

**Stability factor S ^{’}_{:}**

**Stability factor S ^{’”}_{:}**

**Relation between S and S”:**

We know
that S = 1+β and S” = I_{C}/β

Multiplying
numerator and denominator by (1+β),

S” = I_{C}(1+β)/
β(1+β)

S” = I_{C}
S/ β(1+β)

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Electronic Circuits : Biasing of Discrete BJT and MOSFET : Stability Factors |

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