Items Tagged with 'reflections'

SIJ technical editor Eric Bogatin reflects on reflections…“Do corners in traces on circuit boards cause reflections? Of course, they do. Do the reflections cause problems and should you worry? … It depends.” Read on to see what he means.

Measuring small resistance values is not trivial, but since 1861, when Lord Kelvin invented the Kelvin bridge,¹ we at least have a solution for measuring very low DC resistances: the four-wire Kelvin connection (see Figure 1). We measure the resistance by sending a known current through the resistor and measure the voltage drop using separate wires.

In exploring options to demonstrate ringing from reflections in transmission lines, Professor Eric Bogatin gets a greater understanding of debouncing circuits. Read on to see where his investigations led him.