Ignition control device
View Patent ↗The invention provides an ignition control device and a killing control device correspond. An ignition control device comprises an ignition circuit module and a killing control device corresponds. The ignition circuit module comprises a killing control device including a killing switch and a timing retard circuit module connected to the ignition circuit module. When the killing control operates, the ignition circuit stops igniting. The invention has following advantages: reasonable structure, low cost, stable control circuit and safe operation and so on.
1. An ignition control device comprises:
an ignition circuit module and a killing switch control device;
said killing switch control device including a killing switch and a timing retard circuit module;
said timing retard circuit module including a charge circuit module having capacitors;
wherein when the killing switch is activated, the killing switch control device starts to work and the ignition circuit module stops outputting an ignition voltage;
wherein when the killing switch is deactivated, the ignition circuit module is still in a no ignition voltage output state until a voltage discharge of the capacitors in the charge circuit module ends;
wherein the killing switch control device further comprises a pair of diodes, a silicon controlled rectifier (SCR), a transistor, a pair of capacitors and a quintet of resistors, wherein said charge circuit module comprises the pair of capacitors and a fourth one and a fifth one of the resistor quintet; an anode of a first one of the diode pair is connected to the backend of a charge coil of said ignition circuit module; a cathode of the first diode is connected to the anode of the SCR, an emitter of the transistor, one end of a first one of the resistor quintet and one end of a second one of the resistor quintet, respectively; the other end of the second resistor and one end of a third one of the resistor quintet are connected to a base of the transistor; the other end of the first resistor is connected to the other end of the third resistor; one end of the killing switch is connected to the point where the first resistor is connected to the third resistor and the other end is grounded; one end of the fourth one of the resistor quintet is connected to a gate of the SCR and the other end of the fourth resistor is connected to one end of the fifth one of the resistor quintet; the other end of the fifth resistor is connected to a cathode of a second diode of the diode pair; an anode of the second diode is connected to a collector of the transistor; one end of a first one of the capacitor pair is connected between the fourth resistor and the fifth resistor and the other end of the first capacitor is grounded;
one end of a second one of the capacitor pair is connected between the fifth resistor and the second diode and the other end of the second capacitor is grounded.
2. The ignition control device according to claim 1 , wherein parameters of each capacitor and each resistor are regulated to suit to a timing retard.
3. The ignition control device according to claim 1 , wherein a capacitance range of the first capacitor is 0.68uF-22uF, a capacitance range of the second capacitor is 10uF-50uF, a resistance range of the first resistor of the resistor pair is 30 KΩ-300 KΩ and a resistance range of the second resistor of the resistor pair is 90 KΩ-300 KΩ.