# What are the techniques in voltage stability?

This question may be answered in so many ways beacaause the question seems to be broad. hoever we can start this way; If you wantr o stabilise ac voltage then use a automatic volatge regulator. there are so many cicuits yu chose from elctronics books if you want to stabilise direct current, there are circuits avilable. if you undertstand electronics and have basic knowledge building/assembling simple circuits, you can make your own voltage regulator to whatever voltage level you want.there are semi integrated circuits (ic) that are designed to regulate a specific voltage level or adjustable voltage regulators you can buy.

### Why voltage divider biasing are used mostly?

Voltage Divider biasing is widely used in amplifier because of its stability factor .it has a good stability then other three type of biasing . stability factor in VDB (Voltage divider biasing) is (β+1)(1+RB/RE) S=------------------------ (β+1)+RB/RE if RB/RE <<1 then the equation indicates that S=1 it means VDB has a good stability .

### Why voltage divider biasing circuit is the widely used biasing?

In a voltage -divider circuit method for biasing a transistor , we have two resistors R1 and R2 a DC supply voltage VCC and other components like collector resistor , emitter resistor are also present. here biasing is done by the help of voltage drop across the resistors to understand the reason behind the extensive usage of voltage - divider method we need to know about the term stability. Stability factor of a transistor is…

### What is the formulae When voltages of different values are connected in parallel?

There is no 'formula', but there 'techniques' for solving this sort of problem, which requires you to know the voltage-sources' internal resistances as well as their voltages. One of these techniques is called 'loop analysis', which uses Kirchhoff's Current and Voltage Laws. Describing this technique on this forum is not really possible, as it can be quite complicated.

### What is stability of transistor?

there are several stability issues on transistors. 1- Thermal stability : stability of temperature of transistors. 2- Oscillation stability: stability of circuit of transistors. sometimes if circuit design is not good, some transistors in a circuit starts to oscillate, In condition that thy does not need to oscillate. 3- Bias stability: stability of DC voltages of transistors (with temperature changes).