| 摘要 |
PROBLEM TO BE SOLVED: To provide a signal transmission circuit for transmitting an analog signal in an electrically isolated form which improves signal transmission accuracy.SOLUTION: A signal transmission circuit 220 includes a pulse generation section 223, first and second transmission sections 225, 227 and a latch circuit 228. The pulse generation section 223 outputs first and second pulses generated on the basis of the comparison of an analog signal with a predetermined reference wave. The first and second transmission sections 225, 227 transmit the first and second pulses generated by the pulse generation section 223 in an electrically isolated form, respectively. The latch circuit 228 outputs the analog signal as a duty on the basis of the first and second pulses transmitted by the first and second transmission sections 225, 227. The pulse generation section 223 outputs additional pulses for the first and second pulses at rising/falling changes in the amplitude of the reference wave. |
