| 摘要 |
<p>PURPOSE:To reduce the mounting space of a printed board and to reduce power consumption, by constituting a short flame synchronizing pulse decision part by using a gate. CONSTITUTION:A flame counter 15 sends an output with a prescribed time interval by using a short flame synchronizing pulse. The short flame synchronizing pulse decision part 16 detects whether the short flame synchronizing pulse is inputted with the prescribed time interval, and also, and inverts and outputs a pulse state at a prescribed position. A synchronization decision part 17 performs synchronization decision from the output of the flame counter 15 and that of the short flame synchronizing pulse decision part 18. The short flame synchronizing pulse decision part 16 is constituted only with the gate.</p> |
