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Questions tagged [isolated]

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129 views

Why a double fuse is used in some applications?

In some DC applications in an isolated system (i.e. no grounding), sometimes two fuses are used: one is positioned on the positive (Vcc) line while the other is located on the negative (return path or ...
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1answer
33 views

Isolated power supply with output on a 2kVDC floating ground

I am building a system of detectors which are referenced to independent floating grounds. The maximum voltage between each stage is 2kVDC. So I need isolated supplies which can operate continuously at ...
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2answers
113 views

Design of a low cost/low power Isolated AC/DC SMPS

I am looking to replace a classic 50Hz transformer/rectifier circuit with an SMPS. The input is to be 230VAC (EU) compliant and the output should be 5V/0.2A minimum while 5V/0.5A is a nice to have. ...
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0answers
20 views

CAN Bus Isolated Ground Trace Layout

I'm using an ADM3053 isolated CAN transceiver in my design, which, due to layout constraints, is located ~6" away from the board CAN connector. The CAN_H and CAN_L traces are routed as a 100Ohm ...
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1answer
29 views

Isolated power supply for a cascaded multilevel converter

I would like to build a cascaded multilevel converter. Each module should be supplied by an isolated power supply around 100VDC. Using available bench power supplies is not practical, because they ...
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2answers
87 views

Isolated DC/DC converter application circuit / usage

I'm trying to find a basic application circuit schematic for an isolated DC/DC converter – this one specifically: DCWN03E-12 – but I'm having no luck so far. The thing that led me to this particular ...
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3answers
597 views

ground connection for isolated rs485 [closed]

Is it necessary to connect isolated grounds for 2 different isolated RS485 nodes? For instance the following isolated RS485 breakout board doesn't have any GND connection in the board. https://www....
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1answer
60 views

Measurement isolated loop with Op Amp

I'm trying to measure a voltage across an Rsense (R2) in a galvanic isolated loop that flows a current (4 - 20mA). My Op Amp has Vcm +20V. But I'm worried about the voltage in nodes B and A with ...