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I want to sense current through grid line by uC.
Because of cost I use current sense resistance. not hall efect sensor or others.
There are two basic method: Low-side and High-side
According to me, low-side is little dangerous. But it is simply.
High-side is more complex. Also, High Vdd is reguired
All IC I examine support until 100V max. And grid line voltage is 220Vrms in Turkey.
How to sense current by high-side method ?
Because of cost I use current sense resistance. not hall efect sensor or others.
There are two basic method: Low-side and High-side
According to me, low-side is little dangerous. But it is simply.
High-side is more complex. Also, High Vdd is reguired
All IC I examine support until 100V max. And grid line voltage is 220Vrms in Turkey.
How to sense current by high-side method ?