electronc_elementary
Member level 1
Hi,who can tell me why & when use pull up & pull down resistor?
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**broken link removed**The Pull-up Resistor
This time in Very Basic Circuits, I would like to talk about pull-up resistors. The basic function of a pull-up resistor is to insure that given no other input, a circuit assumes a default value. Actually, there are two flavors of this circuit. A pull-up and a pull-down. Their function is the same, to create a default value for a circuit, but one pulls the line high, the other pulls it low.
electronc_elementary said:Hi,who can tell me why & when use pull up & pull down resistor?