DIG-ISO
Capacitive digital isolator
Transfers digital information between separately referenced electrical domains through a capacitive isolation structure.
Schematic
Symbols · ISO MAG
Magnetic digital isolator
In plain English
What does Magnetic digital isolator mean?
A magnetic digital isolator transfers digital information across its isolation barrier using magnetic coupling.
A simple example
The two sides of a control interface can exchange logic information while retaining their specified electrical separation.
What the drawings help you do
Draw two electrical domains with a barrier between them and identify the signal direction. Magnetic coupling transfers information without a direct conducting signal path across that barrier. Power for each side and the device’s insulation requirements must still be represented separately.
- Isolation barrier
- The specified electrical separation between circuit domains.
- Magnetic coupling
- Transfer through a changing magnetic field rather than a direct signal conductor.
Before using this reference
- Identify both supply/reference domains.
- Show each signal’s direction across the barrier.
- Reference the selected isolator’s working-voltage and insulation data.
Does magnetic coupling transfer the load’s operating power too?
A signal isolator transfers information. Any isolated power function must be explicitly provided by the selected equipment; it must not be inferred from the magnetic signal-coupling method.
Read the source: Transformer-coupled digital isolation example
Schematic · ISO MAG
A distinction that matters
The coupling method does not itself establish the device's working voltage or certification.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
Transformer-coupled digital isolation example
Primary-source technical context for this particular function; product-specific ratings remain with the manufacturer.
About this graphic
This illustration was authored independently by Elora Grid to explain the concept. It is not reproduced from a customer drawing, an official standard graphic or a manufacturer CAD file. Its correspondence to an exact IEC or IEEE symbol identifier has not been certified.
SVG and DXF downloads contain this original artwork. DXF uses unscaled drawing units; a GA envelope supplies no product dimensions, clearances or fabrication information. Original artwork is available under CC BY 4.0. Third-party references retain their own terms.
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