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smart_worker
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why do we need 4 resistors?we are applying voltage across base emitter junction.Why do we need a resistor for collector side.One more thing how does the resistor across emitter provides stabilization?
smart_worker said:why do we need 4 resistors?we are applying voltage across base emitter junction.Why do we need a resistor for collector side.One more thing how does the resistor across emitter provides stabilization?
smart_worker said:why do we need 4 resistors?we are applying voltage across base emitter junction.Why do we need a resistor for collector side.One more thing how does the resistor across emitter provides stabilization?
Voltage divider bias is a common method used to bias transistors in electronic circuits. It involves using a series of resistors to divide the input voltage into smaller fractions, which are then used to bias the transistor. The base and emitter resistors in the circuit form a voltage divider, while the collector resistor helps to stabilize the output voltage.
One of the main advantages of using a voltage divider bias is that it provides a stable and predictable bias voltage for the transistor. It also requires fewer components and is relatively easy to design and implement in electronic circuits.
The values of the resistors used in a voltage divider bias circuit play a crucial role in determining the bias voltage and stability of the circuit. A lower value for the base resistor will result in a higher bias voltage, while a higher value for the collector resistor will provide better stability.
The collector resistor serves two main purposes in a voltage divider bias circuit. Firstly, it helps to stabilize the output voltage by converting any changes in collector current into changes in output voltage. Secondly, it improves the overall gain and linearity of the circuit by reducing the effect of transistor variations.
Yes, a voltage divider bias circuit can be used with various types of transistors, such as bipolar junction transistors (BJTs) and field-effect transistors (FETs). However, the values of the resistors used may need to be adjusted to suit the specific characteristics of the transistor being used.