3 ms·
Similar in purpose, extremely different in implementation, since PoE-supporting Ethernets (e.g. 100base-TX) are magnetically coupled, but PoDL-supporting Ethern
by addaon 3y ago
Similar in purpose, extremely different in implementation, since PoE-supporting Ethernets (e.g. 100base-TX) are magnetically coupled, but PoDL-supporting Ethernets (e.g. 100base-T1) are capacitively coupled.
- monocasa 3y agoI mean, isolation transformers like in regular amd PoE Ethernet are a form of capacitive coupling.
- unsung 3y agoThe windings in isolation transformers are inductively coupled through the magnetic field in the core. There's often a shield between the two windings to reduce any capacitive coupling.
- deleted 3y ago[deleted]
- MMoe 3y agoThe industry standard for SPE is moving towards a transformer as well, because to get 1,5kV in isolation from a capacitor requires large components. A transformer is a lot smaller and provides common mode rejection.