A: A transistor needs to be biased at a point whereby it is in a linear point with respect to the load otherwise it can give an output that is non linear or clipping. so with the proper bias the circuit is stable or useful.
voltage divider biasing
The voltage or Potential divider bias or the self bias circuit is the best biasing technique because,it has very low stability factor(change in collector current with respect to Ico or Vbe or current gain beta). only in this technique the increase in temperature wont affect the collector current.
The voltage divider circuit is a network of two or more components in series, often resistors, between a potential difference. The voltage between the components will be somewhere between the potential difference across the whole network and so divides the total voltage into one or more intermediate voltages.
When a load is connected to the output of a voltage divider, the output voltage will typically decrease due to the loading effect. This occurs because the load draws current, which can change the voltage across the resistors in the divider. The extent of the voltage drop depends on the resistance of the load relative to the resistors in the voltage divider. If the load resistance is significantly lower than the divider resistances, the output voltage will drop more noticeably.
Use a voltage divider and an standard high input impedance voltmeter connected to the low voltage output tap of the divider. Just check that: a) the voltage divider has enough resistance to minimize loading of the voltage source (The voltage divider resistance should be as high as possible). b) the voltmeter's input impedance is at least 10-20 times larger than the output resistance (impedance) of the divider. If necessary add a high-input impedance amplifier or a transducer between the divider output and the voltmeter. What is high voltage for you?
voltage divider 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 resistorsto 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 defined as the ratio of amount of change in collector current to the amount of change in the same collector current with the base open(leakage current due to minority charge carriers)lesser the stability factor ------ that type of biasing is more desiredthe stability factor for voltage divider method is nearly equal to one.
in BJT forwardbiasing & reverse biasing are carried out but in FET voltage divider biasing &self biasing are carried out.
To get reasonable gain without losing stability of circuit. ANSWER: Is to reduce the input to a lesser value or to match signals impedance
The voltage or Potential divider bias or the self bias circuit is the best biasing technique because,it has very low stability factor(change in collector current with respect to Ico or Vbe or current gain beta). only in this technique the increase in temperature wont affect the collector current.
You can use more than one type of voltage divider in it. It can sometimes get mixed signals with all the things going on.
In each of the biasing circuit ,there are variations in Q-point (undesirable)with respect to the temperature. The voltage divider bias serves a better way to minimize the change in Q-point.
The essential circuit of a voltage divider, also called a potential divider, is:
voltage divider
its the same
The voltage divider circuit is a network of two or more components in series, often resistors, between a potential difference. The voltage between the components will be somewhere between the potential difference across the whole network and so divides the total voltage into one or more intermediate voltages.
When a load is connected to the output of a voltage divider, the output voltage will typically decrease due to the loading effect. This occurs because the load draws current, which can change the voltage across the resistors in the divider. The extent of the voltage drop depends on the resistance of the load relative to the resistors in the voltage divider. If the load resistance is significantly lower than the divider resistances, the output voltage will drop more noticeably.