0
What else can I help you with?
How do you reduce 12 volts to 3.7 volts?
If the voltage is AC a transformer can be used.
What is the voltage used in Uganda?
It is 240V / 50Hz AC. The plug/socket used is like the one used in Great Britain.
Why gain increases in low frequency region in BJT?
Because Beta (current gain) in a transistor is inversely proportional to frequency. Hence it increases as frequency decreases. Also the ac voltage gain is directly proportional to Beta.
Why capacitor in transistor amplifier circuit at input?
Because capacitor not allow to pass dc voltage,but capacitor allow ac voltage and signal.Purpose is to block dc voltage.That is coupling condenser.
How diode can be used as switch?
No, a diode can rectify an AC signal but is not able to amplify an AC signal. Diodes are two layer devices whereas transistors have three. It is this very thin 'base' region in the transistor that gives it the ability to give a voltage or current gain.
What is the function of an AC transistor in electronic circuits?
An AC transistor in electronic circuits is used to amplify and control the flow of alternating current (AC) signals. It acts as a switch or amplifier to regulate the voltage and current in the circuit, allowing for the manipulation and processing of AC signals for various applications.
Why you add a positive voltage to the ac signal to allow a transistor to amplify ac signal?
It depends on how you bias the transistor. If you ground the emitter, which is very common, you will need to offset the input signal so you can amplify the full voltage swing.
Why Bypass capacitors used in electronic amplifier?
A: A transistor needs a bias or voltage to operate in a linear region unfortunately that is detrimental to gain so by bypassing this emitter voltage the AC gain can be improved.
Can transistor be used to increase the strength of an ac signal?
Yes, a transistor can amplifiy an a.c. signal.
Please Suggest equivalent transistor for AC 128.but it should not germanium transistor?
You can consider using the silicon transistor 2N3904 as an equivalent for the AC128. The 2N3904 is a general-purpose NPN transistor commonly used in various amplifier and switching applications. Remember to check datasheets and specifications to ensure compatibility with your circuit requirements.
Is it true a transistor changes alternating current into direct current?
Not usually. A transistor is an amplifier, that can be used as a switch. If set up correctly it can be used to rectify AC current (i.e. convert it into DC), however it will need a capacitor to smooth the DC current (i.e. keep the voltage constant or nearly the same). What is typically used is a rectifier, a small circuit consisting of one or more diodes.
What are power converters used for?
Power converters are used to change electrical energy from one form to another. It could be changing the voltage or frequency or it could be switching between AC and DC.
How do you build a dc to dc converter?
A DC to DC converter is basically a type of switching power supply. The switcher converts the input DC to AC. A transformer is used to convert the AC to the desired voltage. A rectifier, filter, and optional regulator is used to convert the AC back to DC.
What is the ac equivalent circuit for a transistor?
Transistor are DC output, Triac are AC output.
What are the instruments for the study of the gain of a two stage RC Coupled transistor amplifier?
depends on whether you would like calculate or measured results. if you want calculated resulted, then your best bet would be to use an oscilloscope. if you want calculated results, then there are formulas for finding out the voltage, current, impedance, and individual results from each component using the capacitive reactance, voltage, and type of transistor. are you using a summing transistor, inverting amplifying transistor, amplifying transistor, or a different transistor? also are you using DC or AC voltage or current? you need to tell me what type of transistor you are using?
Which is used for ac to ac convertion?
electrical voltage
Transistor work on ac or DC?
Transistors are typically operated in one of two (well, four) regions: saturation/cutoff or linear (forward or reverse). When used as amplifiers, transistors are operated in the linear region. If you look at a transistor's V-I (voltage - current) characteristic, you'll see the linear region is somewhere "in the middle", where there is sufficient voltage applied (so current flows), but not to much (so the transistor is not saturated). To get transistors to operate in this middle region, DC circuits are used to bias the transistor to the center of the linear region. So the transistor is working on both AC (the signal applied to the input that is amplified at the output) and DC (the biasing network to allow the transistor to operate as a linear amplifier). When used in saturation/cutoff, the transistor is being used as a switch (on/off). this is common in logic devices (gates, arrays, CPUs, etc.). The input to these devices is typically an irregular AC wave (a square wave of information). A power source is needed that is DC, however, to provide the power to drive the output to one state or the other. So proper transistor operation requires both AC (as the signal) and DC (as the biasing network, or power source).
