| 摘要 |
PURPOSE:To prevent the delay in phase and to attain high accuracy, by constituting a device with a counter, flip-flops and a phase locked loop without using a current transformer and a transformer. CONSTITUTION:A counter 20 counts a clock from a clock oscillator 10, a pulse is outputted from terminals 0, 1, 2,-i, -n in time series and this is repeated. A binary flip-flop 30 is inverted with a carry signal of the counter. That is, the binary flip-flop generates a rectangular wave frequency-dividing the clock by 2n. This is inputted to a D type flip-flop data terminal, and a phase delay amount of the output of the D type flip-flop depends that to which output terminals of the counter a trigger terminal of the D type flip-flop is connected. The output of the D type flip-flop is outputted via a phase locked loop. |
