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How can a ttl output from a receiver be used to switch a transistor on or off?
Wiki User
∙ 14y ago
By choosing the type of transistor to meet your needs carefully. I assume what you're trying to do is feed beyond the ttl output's power capability? a JFET may be a good option. A simple amplifier circuit using a MOSFET may be all you need, and this might be more readily available.
Wiki User
∙ 14y ago
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Why a transistor is used as a amplifier and switch?
transistor has 2 output 1 and 0 so can be used as a switch
Why common emitter configuration is mostly used for transistor as switch?
because in ce configuration value of input voltage requried to make the transistor on is very less value of the output voltage or output current
Is a transistor a small electronic switch?
A transistor is used to switch electronic signals.
What is an unbiased transistor?
An unbiased transistor is one being used with no bias voltage to offset its operating point. If the input signal is very small it still can operate as an amplifier but the output will be non-linear. One use for an unbiased transistor is when the transistor is used as a switch, turning it on or off.
What is transistor BC557?
it is a transistor used in IR TOGGLE SWITCH. :-)
When transistor acts as an amplifier then does its output voltage increase or decrease?
That depends on both the input signal and the type of amplifier the transistor is used in.
Which is two states when transistor used as a switch?
A:" one state is when it is off the other when it is on"
What is a switch transistor?
ALL transistors can be used as switch. however there are certain parameters to be noted. speed saturation and storage time. Once a transistor is saturated current may flow either way
How a transistor work as an amplifier and as a switch?
"Transistor" name itself revels it transfers resistance from its input to its output (Transfer of resistance). Input resistance varies when input voltage varies, similarly output resistance varies and this leads to voltage variation at the output. Thus input to output voltage variation is called amplification. this is how transistor can be used as an amplifier. If input voltage is minimum output voltage becomes maximum i.e. its output resistance becomes maximum in common emitter configuration. Thus if no voltage is applied at the input its collector resistance becomes infinite or as if open circuit. Similarly if input current is increased output current increases and out put can behave as short circuit. This is how output current can be switched off or on using no input current or with minute input current. Unlike a digital device, the transistor is an analogue device which can be switch on/off to maximum or any gradient in between. Providing a small AC voltage to the base creates an amplified analogue of this signal across the emitter and collector.
What is the meaning of transistor in processor?
It is used in the control logic and for representing controlled data. Basically a transistor has two inputs where one of the inputs decides whether or not to output the other. Imagine you have a vacuum cleaner. If the vacuum cleaner is on then the following two conditions are met: 1. The cable is connected to the wall. 2. You have the switch in on position. These two conditions represent the two inputs in the transistor (both being "on" if you can hear your vacuum cleaner). The output is represented by whether or not the vacuum cleaner is on. The switch decides whether or not to let whatever electrical signal you may have through to the vacuum cleaners engine. If switch is on then it outputs the signal from the cable. If the cable is not connected there will still be an output but it will be an "off". Sorry about the potentially confusing analogy.
What if base current is zero in a transistor used as an amplifier with common emitter configuration?
output current is zero
What is ment by transistor?
semiconductor device used to amplify and switch electronic signals and electrical power.
