The difference between an AC igniter and a DC igniter is good

It can only be said that each has its own merits, AC igniter is generally used on old-fashioned motorcycles, relying on the direct ignition of the electricity emitted by the magneto, without a battery and no effect, suitable for cars with a foot on the starting lever. DC igniter relies on the DC 12V electric ignition of the battery, if the rectifier is damaged and the battery cannot be charged, then the battery is insufficient and cannot be ignited, and the battery and rectifier must be guaranteed to be normal before DC ignition can be used, which is suitable for cars without stepping on the starting lever.

Comparing the performance of the two igniters, DC ignition is more stable than AC ignition, and the ignition is less intermittent.

First of all, the power supply method is different. One is battery-powered and relatively stable; The other is powered by the magneto charging winding, and the voltage is determined by the speed of the engine, so its fluctuations are predictable. Because the DC ignition is powered by a battery, its lowest continuous ignition speed is very little affected by the engine, basically it can work reliably in less than 100r min, and the high and low speed ignition energy is consistent, and the high-speed ignition energy will not be reduced as mentioned earlier, because the ignition charging and voltage stabilization circuit inside the ignition is always maintained at 200V.

However, the voltage on the ignition capacitor of the AC igniter is uncertain, the peak voltage of the capacitor is about 70V when the engine speed is about 500r min, when the speed rises to 3500r min, the capacitor voltage reaches the apex of about 250V, the ignition energy at this time is also the largest, the capacitor voltage is stable at about 130V in the range of 3500r min and 5000r min, and the ignition energy decreases when the speed is greater than 5000r min. Generally, the capacitance voltage of the CG125-8 magneto from the original manufacturer drops to 70V at the speed of 12000R min. However, the maximum ignition energy speed of magneto is different for different manufacturers and different models.

To sum up, AC igniters cannot be compared with DC igniters in terms of ignition. As for the ignition advance angle, both igniters are the same. However, no matter how good the DC ignition is, in terms of excellence, the AC igniter has a certain advantage, and in practical application, if the entire ignition system is produced by authentic manufacturers, its impact is not great.

Therefore, there are still most AC igniters on the market.

But in one case, I advocate the improvement of the DC igniter, that is, when the magneto charging winding is damaged, although the DC igniter is higher, but it is more cost-effective than you to change a magneto, an ordinary 8-pole magneto costs at least 50 yuan (especially now that the copper is still continuing, all kinds of coils are also **), and the wages of maintenance workers have not been added, and the top cost of a DC igniter costs you 40, and the modification is also very simple, So it's economical and practical, and it can also improve the performance of the whole vehicle, so why not?

At present, the three motorcycles are ignited by DC igniter, what is the difference between DC igniter and AC igniter?

1. Appearance: DC and AC igniters are basically the same in appearance, similar to each other;

2. Power supply mode: AC igniter is powered by magneto stator coil, DC igniter is powered by battery or rectifier, and whether the power line of the igniter comes from the magneton or battery, you can judge whether it is AC igniter or DC igniter;

3. Flame-out method: AC igniter is the ignition signal line short-circuit to the ground to extinguish, there is a flame-out line on the igniter connected to the flame-out switch, and turning off the flame-out switch is grounding short-circuit flame-out: and the DC igniter is to cut off the DC power supply, and cut off the power supply by turning off the flame-out switch, so there is no flame-out line on the DC igniter, so that the DC igniter has one less line than the AC igniter.

4. Input voltage: The input voltage of AC igniter is generally 60 volts - 200 volts in the range of random speed change, and its fluctuation is relatively large; The DC igniter is powered by a 12V battery and the voltage is stable, so the minimum ignition speed of the DC igniter is much lower than that of the AC igniter, which can be ignited in about 1000r min, so the cold engine start effect of the DC igniter is better, and the effect of the two types is almost the same.

5. Ignition voltage: The ignition voltage output from the AC igniter to the high-voltage package generally fluctuates between 70 volts and 200 volts with the change of engine speed, and the spark energy fluctuates between 10,000 volts and 10,000 volts after the high-voltage package is boosted; The ignition voltage of the DC igniter is stable at 230 volts -240 volts, and the spark energy is stable at about 40,000 volts after being boosted by the high-voltage pack, which will not change with the change of engine speed, so the DC ignition is stronger than the AC igniter, and the performance is faster.

6. Fuel-saving performance: The ignition energy of the DC igniter is higher than that of the AC igniter, and the speed-up performance is far higher than that of the AC igniter, so the DC igniter is more fuel-efficient.

To sum up, although the AC igniters on the market are still the majority, in terms of **, AC igniters also temporarily occupy a certain advantage, but the relative performance of DC igniters is stable, can improve the overall performance of motorcycles, and is more fuel-efficient, so with the progress of the times, AC to DC is an inevitable trend.

What is the difference between a DC igniter and an AC igniter? The differences between DC igniter and AC igniter are as follows: 1. Power supply mode:

The AC igniter is powered by the magneto stator coil, and the DC igniter is powered by a battery or rectifier. 2. Flame-out method: AC igniter is the ignition signal line short-circuit to the ground to turn off, the igniter has a flame-out line connected to the flame-out switch, and turning off the flame-out switch is grounding short-circuit flame-out, and the DC igniter is to cut off the DC power supply, and cut off the power supply by turning off the flame-out switch.