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A: That refers to a resistor pull up that is not sufficient to do the job that is to pull up. It also means is greater in value that it should be
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Why external pull up resistor is needed at port 0 for AT89S52 microcontroller?
To limit the amount of current to the ports
Why a pull up resistor is so called?
A pull up resistor is often used in an open-collector circuit, where there is a transistor that can pull to down ground, but there is no transistor to pull up to Vcc. When the transistor is off, the pull-up resistor "pulls-up" the voltage to a point where any connected circuit "sees" the voltage and "knows" the transistor is off. This is often used in circuits where many output gates can drive a single line. Any one gate can pull the line low, while all gates have to be off to allow the line to pull high. In the alternate configuration, a totem-pole system, there are two transistors, one to pull low and one to pull high. If you have multiple gates on a common line, you must three state (turn off both transistors) on the non driving gates, or there will be conflict between gates and possible damage.
What is chip resistor array?
A: These particular chips have laser cut resistor to insure resistance consistencies as required by designers. In these cases usually the use is for DAC or ADC . However they can be nothing more then pull up or pull down resistors for easier of packaging and layout,
What is a pull up resister?
A pull-up resistor common 4K7 is normally used on ICs where a pin is floating to pull the pin to 5 volt or logic 1 it can be pulled to logic 0 internally by the IC it is normally used with MCUs (micro processors)
What are the common defects of a variable resistor?
Normally if a resistor fails they will either increase in value or open up at all (open circuit).
Diff between weak and strong pull up resistor?
A strong pullup means using small value resistor for pull up whereas a weak pullup means using high value resistor for pulling the signal to Vcc. A strong pullup reduces the RC time constant. Soumen C
What is different between the resistor and pullup resistor?
A "pull-up" resistor is a resistor used to to perform a specific electronic function - it is not a different type of resistor. A very small current flows through a pull-up resistor so it does not need to be high wattage (1/8 watt is generally fine). The value of a pull-up resistor depends on the resistance of the sensor. If it is simply on or off (no resistance) then a typical pull-up resistor might be 10k ohms.
Why do you need pull up register?
pull up resistor is a one of the dubakur resister
How does a pull up resistor works?
A pull-up resistor is used to "pull-up" a signal to prevent it from floating or creating an undefined state. Typically a digital input might be looking for a ground or low state to indicate a state. The pull-up resistor is attached to the signal line and to a level which will "pull" the line to a high level in the absense of a low signal. The effect is to provide a reliable hi or lo to an input. The pull up may located close to an input or directly at an output to effect the results. Some eletronic devices have the pull-up devices internally installed.
How does a pull down resistor work?
Typically used in logic circuits is the pull-up resistor Less common is the pull-down resistor It's purpose is to force a zero (low) value when no other component is driving the input (no load) By providing a current limited path to negative power source through the resistor, while allowing the voltage to swing high if a load is present.
Where is the heater blower resistor located in 2001 grand am?
Pull blower its up inside hole
What is the problem with floating inputs?
The problem with floating inputs is that electrical noise in the line could trigger the input without user input. This can easily be avoided with a pull-up or pull-down resistor. The problem with floating inputs is that electrical noise in the line could trigger the input without user input. This can easily be avoided with a pull-up or pull-down resistor.
Why external pull up resistor is needed at port 0 for AT89S52 microcontroller?
To limit the amount of current to the ports
Why a pull up resistor is so called?
A pull up resistor is often used in an open-collector circuit, where there is a transistor that can pull to down ground, but there is no transistor to pull up to Vcc. When the transistor is off, the pull-up resistor "pulls-up" the voltage to a point where any connected circuit "sees" the voltage and "knows" the transistor is off. This is often used in circuits where many output gates can drive a single line. Any one gate can pull the line low, while all gates have to be off to allow the line to pull high. In the alternate configuration, a totem-pole system, there are two transistors, one to pull low and one to pull high. If you have multiple gates on a common line, you must three state (turn off both transistors) on the non driving gates, or there will be conflict between gates and possible damage.
What is chip resistor array?
A: These particular chips have laser cut resistor to insure resistance consistencies as required by designers. In these cases usually the use is for DAC or ADC . However they can be nothing more then pull up or pull down resistors for easier of packaging and layout,
Blower motor blows weak?
it's a problem with the blower motor resistor
Where is the blower motor resistor located on a 96 dodge neon?
Under the cowl where the wipers are. Remove that and two screws to pull resistor out.
