1407 TS fig1

The Hazards of Multiple Grounding

One of my colleagues has a desk drawer full of I/O boards that have been burned quite severely. Why did they burn? The I/O boards are in energy-limited SELV circuits. There should be no possibility of fire. ... Read More...
1406 TS fig1

Resistor Value for Measuring Leakage Current

Furor and controversy are words which describe the process by which standards committees decide the value of the resistor in the leakage current measuring network. However, the different specified resistor values create no more than a 6.25% error for the value of the leakage current.
TS 8804 fig1

Understanding Creepage Distances

Dear Readers, Over the past couple of years many of you have requested that we include more product safety related information in our issues. Of particular interest has been Rich Nute’s series of “Technically ... Read More...