Question

H3P4: Diode Limiter
is there any one to guide me to solve it?

Answer 1

Just remember that there are two possible values for the triangular waveform, so you have a case for a positive peak value and a case for a negative peak value, from there one you can take a look at the diode graph and realize that it either works as short circuit or an open circuit, you end up with two subcircuits, and apply a node method, it's easy to calculate the current in the branch of interest