Tool/software:
The schematic above shows that SGND and PGND are magnetically isolated except for the C11 connection. If I want to collect the DC voltage after the rectifier bridge, I can step it down through the large resistor R99 and the small resistor r98 and connect it to SGND, and then read the voltage between r98 and SGND. Is this okay?
Similarly, the input AC voltage(only L,no N) is collected, connected to SGND after being stepped down through a large resistor and a small resistor, and the voltage between the small resistor and SGND is read. Is this acceptable?
Taking TIDM1000(https://www.ti.com.cn/cn/lit/df/tidrp45a/tidrp45a.pdf?ts=1729345039041)
as an example, collecting the bus voltage V_P, its reference ground V_M is obtained by adding an isolation transformer to the auxiliary power supply through AC voltage. There is no direct electrical connection between V_M and V_P, and they are also magnetically isolated. Is it reasonable to collect the voltage of V_P in this way?
