current sensing

Hello everyone, We are currently developing a three-phase energy meter based on a non-isolated ("Hot MCU") architecture. In this design, the low-voltage section (MCU, AFE, and Ground) floats at line potential, with the measurement front-end referenced directly to the mains via high-value...

Hi, I am a beginner in hardware design. Recently got a task to design a simple current measurement device. The device should have only 3 states: Current is lower than 10 mA Current is between 10 and 100 mA Current is higher than 100 mA For current measurement I am using a LM358N op amp in a...

Hi. I was wondering if someone has ever constructed a Switch Mode Power Supply using isolated voltage and current sensors connected to a Microcontroller. If so: What device (Voltage/Current) have you used and using what protocol ( i2C / SPI etc ) ? What sampling rate could be achieved ( 200kHz+...