| 摘要 |
PURPOSE:To simplify the constitution of a titled circuit by presetting phase controlling data to a phase controlling pulse generating circuit by an output from the phase controlling pulse generating circuit which is generated synchronously with an output to a circuit part operated in parallel with the phase controlling pulse generating circuit. CONSTITUTION:An electric power source synchronizing signal is outputted from an electric power source synchronizing signal generating circuit 1 to which the voltage of a commercial electric power source 7 is applied and inputted to a phase controlling pulse generating circuit 4. After measuring phase contol timing based upon a phase controlling data inputted from a phase controlling data part 6 in the preceding half cycle, the phase controlling pulse generating circuit 4 outputs a phase controlling pulse. The phase controllig pulse is inputted to a phase controlling element 5 to phase control a load 9 through the commercial electric power source 7 and also inputted to the phase controlling data part 6 to preset the phase controlling data for the succeeding half cycle from the phase controlling data part 6 to the phase controlling pulse generating circuit 4. |
