| 摘要 |
Constant delay circuit includes signal input end, delay signal output end, RC delay circuit, and a comparator. The signal input end receives an input signal. The delay signal output end outputs the delay input signal, which the delay period is predetermined. The RC delay circuit is coupled to the signal input end for receiving the input signal and generating a voltage. The comparator includes a first input end, a second input end, and an output end. The first end of the comparator is coupled to the RC delay circuit for receiving the voltage. The second end of the comparator receives a reference voltage. The output end of the comparator is coupled to the delay signal output end of the long delay circuit. The comparator compares the reference voltage and the voltage, and accordingly generates a result as the delay signal.
|
