doubly sampled triangular   1-phase half bridge 1-phase half bridge natural, edge natural, triangular sampled edge singly sampled, triangular doubly sampled., triangular fund. (n=1, m=0) E.M EM ≈ E.M harm n>1, m=0 none yes, small ampl. yes, very small ampl. only n odd carrier harm. n=0 yes only m odd side bands n,m>0 only m+n odd m+n even small ampl.   1-phase full bridge 3-phase full bridge natural, triangular doubly sampled triangular fund. (n=1, m=0) 2E.M E.M ≈ E.M harm n>1, m=0 none small ampl., n odd, no 3v carrier harm. n=0 side bands n,m>0 only m even, n odd m+n odd, no m+3n