Allowing for the flow of power or information without shared electrical nodes

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57 views

How do I correctly power a USB 2.0 while decoupled from signal?

I'm building a switch that will power on / off a bunch of USB 2.0 ports. In order to avoid overloading the USB hubs (as has been an issue in the past) I would like to power and switch my peripheral ...
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174 views

Isolation between cells for battery charging & testing

I want to charge Lipo battery packs and possibly other chemistries too. Six cell packs for starters. But hope to handle more and less. Perhaps a lot more cells. For electric vehicles, skateboards, ...
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Isolation Amplifier Design Issue

I modulate input signal with triangle wave to create PWM signal. When I am creating triangle wave I use astable multivibrator and integrating circuit. unfortunately there are offset at my triangle ...
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ACPL-C79B problem

This is my first post on this forum. I have a problem with an isolation amplifier and i hope there's someone here who can help me out. Let me explain my situation. I use an ACPL-C79B from Avago to ...
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117 views

PCB isolation strength VS pad-to-pad distance

Is there any estimation regarding the relation between PCB pad to pad distance and isolation strength? If the board is covered with the mask and the minimum distance is 2,9 mm which isolation voltage ...
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52 views

Isolated CAN and Onewire

I have a bord where HV is present and one where only LV is presented. On each board is an Onewire und a CAN bus. How can I isolate the buses? I found for CAN this: http://www.ti.com/lit/an/slla298b/...
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878 views

Can You Drive Back-To-Back MOSFETs (aka a Solid State Relay) Without Using An Optocoupler?

I was wondering if there was any way of driving back-to-back MOSFETs (with their sources and gates tied together as shown in the following image) without using an optocoupler? The reason is that ...
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If I connected a voltimeter between a galvanically insulated phase and ground, what voltage value would it show?

I got asked that question and got me to doubt. If I had two phases L1 and L2 and N, all galvanically isolated using an isolation transformer, and I were to measure L1 vs ground, what voltage would the ...
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Simulated analog narrow band output ground loop

I am using a Wide Band Lambda controller with a simulated analog narrow band output, the controller system must be grounded to the chassis and is also shared with analog common which connects to the ...