| 摘要 |
PROBLEM TO BE SOLVED: To obtain a signal generation circuit capable of exactly deriving a specified signal according to signal inversion due to zero-cross of an analog signal. SOLUTION: The signal generation circuit is provided with D flip-flops 2, 3 for receiving an input signal to a terminals T according to signal inversion due to the zero-cross of the analog signal and deriving an output signal to a terminal Q, a comparator 6 having a hysteresis characteristic for receiving the output signals of the D flip-flops 2, 3 to a non-inversion input terminal as input signals, and a generated signal output terminal 5 connected with the non-inverted input terminal of the comparator 6, and derives the generated signal to the generated signal output terminal 5 corresponding to application of the input signal to the comarator 6 having the hysteresis characteristic due to the D flip-flops 2, 3, and also performs operation of resetting the D flip-flops 2, 3 by the output signal of the comparator 6 having the hysteresis characteristic. |
