In current transformers the primary is typically a single wire (the AC line in this case) passing through the middle of a ring (see the picture to the right from wikipedia). The secondary is ...

Posted in home hacks, Microcontrollers Tagged arduino, cooker hood, current transformer, kitchen. Building A Safe ESP32 Home Energy Monitor. July 27, 2019 by Tom Nardi 45 Comments ...

The current rating of the composite transistor connection (Q2 & Q3) is roughly 100mA without a heatsink. In the oscillographs, the two modes of operation are visible – one clamped at high current and ...