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What is carrier amplifier?
It is a direct-current amplifier in which the dc input signal is filtered by a low-pass filter, then used to modulate a carrier so it can be amplified conventionally as an alternating-current signal; the amplified dc output is obtained by rectifying and filtering the rectified carrier signal.
Does an oscillator have input?
Yes, an oscillator typically requires an input signal to generate its output waveform. The input signal could be a voltage or current signal that initiates and drives the oscillation process within the oscillator circuit.
A mealy state machine output depends on?
A mealy state machine output depends on both the current state and the input signal received. The combination of the current state and the input signal dictates what the output of the machine will be for a given transition.
What is a current amplifier?
A current amplifier this a device which heightens the current of the input signal at its output. If we are speaking of semiconductor devices i.e. transistors, than this form of amplification is done so by applying input signal the the base of the transistor, and drawing the output singal from the emitter. This amplifier can also me called an emitter follower. A current amplifier will only yield a gain of less than 1, but the current can be amplified up to 10x the input current.
How does a device convert direct current (DC) to alternating current (AC)?
A device called an inverter is used to convert direct current (DC) to alternating current (AC). The inverter switches the direction of the current flow at a rapid rate, creating an alternating current output from the direct current input.
What is current series feedback?
The current series feedback is a negative feedback in which the output current feeds back a proportional voltage back to the input terminals in series with the input signal. Here the output impedance as well as the input impedance increases as both are connected in series.
Alternating current can be changed to direct current by?
using a rectifier, which converts the AC signal into a pulsating DC signal, and then using a filter to smooth out the pulsations in the signal, resulting in a steady DC output.
What is amplifier and types of amplifiers?
Amplifiers are electronic device that responds to a small input signal (voltage, current, or power) and delivers a larger output signal.
What are the advantages of push pull amplifier?
The advantage of this circuit is that there is very little current taken if there is no signal input
Why more current amplification in common emitter?
A bipolar transistor can be used in different configurations in linear electronic design. Most well known is the common emitter CE configuration with a base current as input signal resulting in a collector signal multiplied by the current gain factor. The second configuration is known as the emitter follower or common collector configuration. Here the input signal is in the form of a voltage between the base and the common connection. The output signal is found in the form of a voltage at the emitter with a relative low output impedance. The voltage swing at the input is almost as large at the output where the input impedance equals the product of the current gain factor and the emitter resistance. The third configuration is known as common base CB. Here the input current at the emitter almost equals the output current at the collector. The current gain is nearly equal to 1.
What is amplification factor?
Current Amplification Factor or Current Gain is basically the ratio of the ratio of the output current to the input current when its passing through an electrical device. So, it gives us the amount of current gained as it flows through. output current/input current For example:for CE Transistor ,beta=ic/ib
What is the effect of coupling capacitor?
It can be said that capacitors pass alternating current but block direct current. Coupling capacitors at the input and output of a circuit isolate the direct current within that circuit from the input circuit and the output circuit, respectively. Only the input signal is allowed in, and only the output signal is allowed out.
