Posts by Elleanor Lopez‭

This is an expansion on Biasing a differential opamp input post. Olin pointed out that gotchas can be in the implementation, so I will provide the circuit and design specifications as well as my re...

1 answer  ·  posted 1y ago by Elleanor Lopez‭  ·  last activity 1y ago by Olin Lathrop‭

I have a bed for which the headrest can be adjusted. There are 2 separate power inputs for each side like in the picture: In addition, there is a set of 9V batteries on each side, presumably for...

2 answers  ·  posted 2y ago by Elleanor Lopez‭  ·  last activity 2y ago by absurdus‭

I have a differential signal source and a single source amplifier. The source has 2Vp-p signal. I wanted to center the differential signal around 2.5V, so I came up with the following circuit: S...

1 answer  ·  posted 1y ago by Elleanor Lopez‭  ·  last activity 1y ago by Olin Lathrop‭

We have ESD tables in the laboratory with Earth Bonding Points: These are directly connected to PE (I measured). It is my understanding that equipment has to be connected to PE directly and ESD m...

1 answer  ·  posted 2y ago by Elleanor Lopez‭  ·  last activity 2y ago by Olin Lathrop‭