Let's say the processor being powered requires four rails, each being powered by a discrete regulator. After the initial round of testing and verification, it is revealed that an additional 3.3 V power rail is needed in the system for powering digital I/O and peripheral ICs. With the ...
When using zero-cross triac-output photocouplers, since the voltage when they are turned ON is kept low, current limiting resistor RT does not have to be inserted. When using non-zero-cross triac-output photocouplers, a large current flows. The current l
When using zero-cross triac-output photocouplers, since the voltage when they are turned ON is kept low, current limiting resistor RT does not have to be inserted. When using non-zero-cross triac-output photocouplers, a large current flows. The current limiting resistor must therefore be ...