SLUAB09 October 2025 AMC0386-Q1 , TPS61170 , TPS61170-Q1 , TPSI2140-Q1
2.1 Basic Architecture
Figure 2-1 shows the block diagram and the equivalent circuit of the basic architecture. RisoL is the insulation resistance between Line and PE. RisoN is the insulation resistance between Neutral and PE. RstL and RinL are the resistor dividers between Line and PE. RstN and RinN are the resistor dividers between Neutral and PE.
Figure 2-1 Block Diagram and the
Equivalent Circuit of the Basic ArchitectureThe basic working principle of this architecture is that two-series resistors measure two voltages, and then the operational amplifier converts the differential voltage to a single-ended voltage.