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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.
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What a weak pull up resistor?
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
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
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
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
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.
Why external pull up resistor is needed at port 0 for AT89S52 microcontroller?
To limit the amount of current to the ports
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,
How do I fix the blower control on a 1992 Chevy cheyanne since it only blows on high speed?
Check the resistor if it only works on high Check the resistor if it only works on high Check the resistor if it only works on high
Nissan almera blower works onlt on no 4?
change the resistor under passenger compartment held up in by 2 screws
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.
