这里提出的电路是用于测试摩托车和三轮车的CDIS的测试仪电路。
设计和写作：ABU-HAFSSBasically there are 2 types of CDIs:
技术规格
a) AC CDI, in which the HVAC (about 180V) is obtained from the source coil inside the magneto housing.
b) DC CDI, in which the HVAC is generated by circuitry inside the CDI, from 12VDC.
Then there are further 2 types in AC-CDI and CD-CDI which are usually used in performance bikes or heavy bikes.
它们配备微处理器，以提供提前点火曲线，以便在气缸盖内更好地燃烧燃料。标题测试仪电路设计用于在没有微处理器的情况下测试CDIS。
研究电路的研究将揭示下电路是第一电路的一部分。第一电路是测试AC-CDIS。
Circuit Operation
The transformer T1 converts 220VAC from mains to 12VAC and then T2 re-converts 12VAC to 220VAC.
This set-up is to isolate the rest of the circuit from grid mains. This 220VAC is fed into the CDI's HV Input, replacing the HVAC which is obtained from bike's source coil.
整流桥将12VAC转换为12VDC，C1平滑。SCR U2用于停止12VAC电源到T2，这将很快讨论。
The IC U1 is 555 timer configured as an astable multivibrator with duty cycle about 20% and frequency about 17Hz.
产生的脉冲系将以固定速率（17 x 60 =）1020rpm的固定速率代替触发线圈脉冲。
The output is fed into the CDI's Trigger Input and the ground is connected to the (-)ve rail. The output is also connected to the gate of the SCR via R4.
每当有正脉冲时，SCR将暂时切断12VAC电源到T2。因此，对CDI的220VAC供应将被暂停。当CDI内的SCR倾倒主电容器时，这是避免短路路径所必需的。
The CDI's output is connected to one end of the primary of an ignition coil. The other end is connected to the (-)ve rail.
One end of the secondary of the ignition coil is connected to a spark gap and the other end is connected to the (-)ve rail.
The second end of the spark gap is also connected to the (-)ve rail. A strong spark across the gap will indicate that the CDI is good.
If the CDI under test is DC-CDI, the lower circuit will be used. The connections will be the same except the power supply will be 12VDC. The HVAC supply is built-in inside the CDI. A good CDI will fire strong spark across the gap.
先生非常感谢您
Please I want to know the difference between ups and Inverter, after that can I replace the 7ah ups battery with 200ah?
谢谢Basiru,
UPS has an automatic changeover and is normally suitable for all appliances whereas an inverter may lack both of these features.
yes you can replace a 7ah ups battery with 200ah battery provided the voltage is not altered
Can we use ignition coil itself instead of using this wooden model?
the wooden model is used for spark generation just like a spark plug does…
好的。谢谢
亲爱的洼地
你介意让我知道这个模型中使用的所有抵抗力的瓦数吗？
问候
嗨ibtihaj，
All the resistors can be 1/4 watt, CFR 5% resistors.
亲爱的Swagatam，
R3 & Zener Diode are getting hot where R3 is getting too hot to touch, in just few seconds. Please advise what to do?
问候
Dear Ibtihaj, increase R3 to 1K and check the response
Esta interesante el circuito
格拉西亚斯
祝贺超级项目机会适应电位器，在这个项目中模拟发动机RPM，并在哪里提前感谢
谢谢，很高兴你喜欢它，是的，可以通过用100k罐更换下图的R1，但是一定要与它串联连接1K电阻
Thank you for responding and in the ac cdi it would be possible
是的，可以使用设计
除非我索赔原理图，否则AC CDI将在50 / 60Hz获得力量，因此它将仅适用于3000〜3600 RMP Max。我是rigth？
据我似乎，SCR将每秒射击50次，从IC 555的高频可能没有帮助切割SCR传导，因为SCR将被锁定，直到每个零路路都会强迫它在最大50Hz上工作频率或更少。
亲爱的朋友，自从我是一辆摩托车机械师以来，我想建立这个项目，这对我来说非常有用，但我有疑问，是否会对桥式整流器短路，不会导致它或变压器造成加热或损坏？我即将把它放在一起，但那些怀疑出现了，非常感谢你和问候。
Dear Carlos, yes it does short circuit the transformer/bridge, you can use a low current transformer to avoid damage to the diodes or the SCR.
Alternatively you could try the last design from the following article:
//m.addme-blog.com/make-this-enhanced-capacitive-discharge/
Thank you very much, that was my doubt, I will arm it anyway to check the operation of the CDI at least at low revolutions, since I can not find any circuit that works simulating higher revolutions, since that is where they tend to fail, but this circuit It will be useful, thank you.
好的，没问题！