Riferimenti e abbreviazioni

Abbreviazioni

AC

alternate current (corrente alternata)

AWG

american wire gauge

DC

direct current (corrente continua)

DIPs

dual-in-line pins

DPDT

double pole double throw switch

DPST

double pole single throw switch

IC

Integrated Circuit

NCPB

normal closed puch button

NOPB

normal open push button

SPST

single pole single trow switch

Definizioni

burden resistor

It is a regular resistor. The name refers to the function, not to the resistor’s construction. Current transformers act as current sources and need a load. A current source is the dual of a voltage source, and just like you shouldn’t short-circuit a voltage source because it would cause infinite current, you shouldn’t leave a current source open, as it would cause an infinite voltage. The burden resistor converts the current to a limited voltage.