Which are the best transistors CE CB or CC?
The transistors are the best because they provide you with a high gain voltage output and a high input impedance. These are used in amplification processes. The transistors have an input impedance greater than that of the transistors ce and are used in the power amplifiers.
Transistors cb have a low input impedance. this transistor is the best for the following reasons –
- because of a high current gain .
- high voltage gain .
- moderate input and output current ratio .
It depends on how you want to use. If you want to use the transistor as a voltage boost, cb is preferable. or if you want an amplification of voltage and current, it’s better. If you want to use the current amplification, it’s better and it provides almost a better gain. but most would use this as an amplifier due to its amplification of voltage and power.
Of the different configurations of DC transistors (common collector), this (common emitter) and cb (common base), the common emitter configuration transistor (ce) is the best because it has the advantages
common emitter configuration transistor (ce) advantages
– high input impedance
-low impedance output
-more current amplification
-more voltage boost
because of these characteristics, the configuration that transistors are used in many applications, in general, they are most often used for amplification purposes.
the most common applications include
– the low frequency voltage amplifier
-radio – to amplify weak signals received by the antenna.
this the configuration of the common transmitter or the grounded transmitter, the input signal is applied between the base, while the output is taken between the collector and the transmitter, as indicated. This type of configuration is the most commonly used circuit for transistor amplifiers and represents the normal connection mode of bipolar transistors.
The configuration of the common emitter amplifier produces the highest current and power gain of the three bipolar transistor configurations. this is mainly due to the fact that the input impedance is low because it is connected to a direct-biased pn junction, while the output impedance is high because it comes from a reverse-biased pn junction.
Features of this:
• It has a high input impedance (in the range of 500 to 5000 ohms).
• its output impedance is low (around 50 to 500 kilo ohms).
• the current gain (beta) is 98.
• the power gain is 37 dB.
• the output is 180 degrees out of phase.
characteristics of cb:
• it has a low input impedance (of the order of 50 to 500 ohms).
• It has a high output impedance (in the order of 1 to 10 mega ohms).
• the current gain (alpha) is less than unity.
features of cc:
• it has a high input impedance (around 150 to 600 kilo ohms).
• its output impedance is low (about 100 to about 1000 ohms).
• the current gain (beta) is about 99.
• the gain in voltage and power is equal to or less than one.
Based on these points under consideration, the common issuer configuration is the best.