Question
Download Solution PDFStability factors are defined as the rate of change of _______ with respect to the _______, keeping both the base current and the current gain β constant.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFStability Factor in Transistors
- The stability factor is a measure of how sensitive the collector current (IC) is to variations in the collector-base leakage current (ICBO).
- It indicates the stability of the transistor's operating point (quiescent point or Q-point) under varying conditions.
- A higher value of S indicates that the collector current is more sensitive to variations in leakage current, which can lead to instability.
Stability factor for different biasing circuits:
| Biasing Configuration | Biasing Circuit | Stability Factor w.r.t VBE |
| Fixed Bias |
|
|
| Emitter Bias |
Assuming IE = β IB,
|
|
| Voltage Divider |
Assuming IE = β IB, |
|
| Feedback Bias |
|
Last updated on Jun 16, 2025
-> SSC JE Electrical 2025 Notification will be released on June 30 for the post of Junior Engineer Electrical/ Electrical & Mechanical.
-> Applicants can fill out the SSC JE application form 2025 for Electrical Engineering from June 30 to July 21.
-> SSC JE EE 2025 paper 1 exam will be conducted from October 27 to 31.
-> Candidates with a degree/diploma in engineering are eligible for this post.
-> The selection process includes Paper I and Paper II online exams, followed by document verification.
-> Prepare for the exam using SSC JE EE Previous Year Papers.