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In what ways can a transistor amplifier modulator be modulated?
Wiki User
∙ 16y ago
If I remember correctly, the definition of "modulation" is a "change in amplitude or frequency".
Wiki User
∙ 16y ago
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How can two square waves be combined in an electronic circuit?
If they are the same voltage a logic gate could combine them in various ways. A ring modulator fed from two square waves would make interesting sounds. An op-amp would combine the waves. A single fet would combine them. One signal flowing from source to drain modulated by the second frequency applied to the gate.
What is the maximum base thickness in a BJT transistor?
The maximum base thickness in a BJT is dependent on a number of variables and parameters (or call them "constraints"). You could create a base region with thickness ranging from a few layers of atoms up to the point where the "base" region responds to the models of bulk semiconductor by messing with the process parameters. But why? If the base is too thick then with the transistor biased into the 'active' region (i.e., B-E junction forward biased & B-C junction reverse biased), the transistor 'alpha' (the ratio of carriers collected by BC to those generated in BE) will be hopelessly low and the transistor will not exhibit the high current gain that you expect from BJTs. That's because a thick base provides too much opportunity for large numbers of forward current charge carriers to be recaptured by the crystal matrix or lost to the collector current in other ways.
Why we use oscillator to convert DC into AC?
An oscillator is capable to oscillate an output about a mean with certain predetermined frequency. The AC being a periodically oscillating can thus be generated using an oscillator with fixing the amplitude of the signal preferably using a multiplier (with a steady value) or an amplifier. This feature is typically helpful for eg. in control systems in drives. There are of course other ways to produce AC from DC quantities too.
What is the name of the Bourne theme song the one that plays at the end of The Bourne Identity?
The ending song is "Extreme Ways" by "Moby" and the alternate ending song is "In the Sun" by "Joseph Arthur" You can listen to both of them on youtube to be sure which one you are searching for.
1000 ways that a person is wise?
1000 ways that a person is W
How can two square waves be combined in an electronic circuit?
If they are the same voltage a logic gate could combine them in various ways. A ring modulator fed from two square waves would make interesting sounds. An op-amp would combine the waves. A single fet would combine them. One signal flowing from source to drain modulated by the second frequency applied to the gate.
Where is the kick down solenoid on 1990 Oldsmobile ceria cutlass?
If you have an Overdrive transmission 4T60(4T440) and a 3.3L this transmission is modulated in two ways. I has a TV (Throttle Valve) cable that attached to the throttle body at about the same place as the throttle cable (gas pedal). The other part is the vacuum modulator which is on the front side of the transmission and looks like a big can with a rubber vaccum hose connecting it to a metal like that makes a 90 degree turn heads straight up and then bends into the first location on the front side of the vacuum block. TV cable handles downshifts. Vacuum Modulator handles harshness.
How do you connect an iPod to a car stereo?
There are several ways to connect an iPod to your car stereo. One of the ways is using an FM Modulator. Another way to connect an iPod is a line-in connection.
What is demodulation of laser beam?
Demodulation is the act of removing the modulation from an analog signal to get the original baseband signal back. Demodulating is necessary because the receiver system receives a modulated signal with specific characteristics, which must be returned to base-band. There are several ways of demodulation depending on what parameters of the base-band signal are transmitted in the carrier signal, such as amplitude, frequency or phase. For example, for a signal modulated with a linear modulation, like AM (Amplitude Modulated), we can use a synchronous detector. On the other hand, for a signal modulated with an angular modulation, we must use an FM (Frequency Modulated) demodulator or a PM (Phase Modulated) demodulator. Different kinds of circuits perform these functions. A demodulator is an electronic circuit used to recover the information content from the carrier wave of a signal.[1] The term is traditionally used in connection with radio receivers, but many other systems use many kinds of demodulators. Another common one is in a modem, which is a contraction of the terms modulator/demodulator. Many techniques -- such as carrier recovery, clock recovery, bit slip, frame synchronization, rake receiver, pulse compression, Received Signal Strength Indication, error detection and correction, etc. -- are only performed by demodulators, although any specific demodulator may perform only some or none of these techniques.
What is a transitors?
A transistor is an electronic component known as a semiconductor. The first practical transistor was invented in 1947 and became an alternative to vacuum tubes (valves) and relays. Early transistors were made with germanium but silicon is used almost universally in semiconductor manufacturing. A single transistor is a few millimetres wide and tall and has three terminals. It works by transferring a high resistance input to a lower resistance output. The transfer of resistance gave rise to the name trans - istor. A transistor will generate a large change in current for a given input or a large change in voltage. There are numerous ways to use them and the applications and science of the transistor can fill many books - too complex to discuss in detail in this answer. Transistors are good amplifiers and are found in radios, music equipment, video systems in their role as an amplifier. They are also very efficient switches and because they will switch from low to high, are common in binary circuits. The transistor is the basis of all digital computers. A modern CPU chip in a computer is actually made of many billions of transistors inside the integrated circuit. A typical computer will have trillions of transistors in total. For further reading, take a look for basic electronics tutorials. All of them will have detailed descriptions of the way a transistor works and demonstrate the more common applications.
Can you convert a car audio amplifier into a cb ham radio amplifier?
No. Not only is it illegal to amplify a CB radio beyond the FCC permitted four watts, but stereo amplifiers and linear amplifiers work in very different ways.
How single sideband is being generated?
In regards to the radio transmission mode, SSB is an improvement of AM, and there are generally three ways single sideband can be generated -- filtering out the unwanted sideband and suppressing the carrier; using phasing to suppress the unwanted sideband and carrier (Hartley modulator); or quadrature mixing and filtering (Weaver modulator).
What does true quom mean in the Verizon FIOS commercial?
The pronounced "quom" is the mnemonic for QUAM which stands for QUantitized Amplitude Modulation, which is one of many ways light waves may be modulated to carry information.
Name two ways to increase the current to a load?
1) Use an operational amplifier.2) If voltage is not an issue, a transformer may be used.
Ways for car lights not to dim with subwoofers?
consider getting a lower powered amplifier or subwoofer that doesn't strain your cars electrical power.
What is a Stereo Power Amplifier?
A stereo power amplifier is simply a two channel power amplifier. You can runn it in a couple of ways; Stereo, mono or bridged. Stereo has a seperate left and right signal in and sepetate out. Mono is one channel in and both output channels reproducing the one signal in. Bbridged gives you the same as mono BUT it uses both channels as one output.
What is a power amplifier?
A stereo power amplifier is simply a two channel power amplifier. You can runn it in a couple of ways; Stereo, mono or bridged. Stereo has a seperate left and right signal in and sepetate out. Mono is one channel in and both output channels reproducing the one signal in. Bbridged gives you the same as mono BUT it uses both channels as one output.
