| 摘要 |
A delayed ignition control device, comprising: a charging circuit (1), wherein the charging circuit (1) comprises a power supply coil (N3), an energy-storage capacitor (C1) and a diode (D1), an anode of the diode (D1) is connected to a starting end of the power supply coil (N3), a cathode of the diode (D1) is connected to the energy-storage capacitor (C1), and the other end of the energy-storage capacitor (C1) is connected to an ignition coil; and a delayed ignition control circuit (3) comprising a silicon controlled rectifier (SCR2), an optocoupler IC, a diode (D5), a voltage holding capacitor (C2), a flameout switch (S1), a resistor (R6) and a resistor (R8), the resistor (R6) is connected between a positive electrode of an input end of the optocoupler IC and the starting end of the power supply coil (N3), the flameout switch (S1) is connected between a negative electrode of the input end of the optocoupler IC and the ground, a collector electrode of the optocoupler IC is connected to the starting end of the power supply coil (N3), an output end of the optocoupler IC is connected to the anode of the diode (D5), the voltage holding capacitor (C2) is connected between the cathode of the diode (D5) and the ground, and the resistor (R8) is connected between the cathode of the diode (D5) and a control electrode of the silicon controlled rectifier (SCR2). The delayed ignition control device has a simple structure and reliable operation, and can easily adjust ignition delay time. |
