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Old 06-05-2011, 10:01 PM #1
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Default Voltage spikes?

Does this driver circuit need an additional capacitor attached to the laser diode, to prevent voltage spikes? Or should it be fine as is?

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Old 06-07-2011, 08:19 AM #2
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Default Re: Voltage spikes?

Lots of people seem to think these cheap Chinese drivers aren't very stable and will kill your diodes... but I have had different experiences. In most of my builds, I have used these converted LED drivers without *any* stability caps attached, and they have been running perfectly. And look at it - it has built in tantalums. Those things are beastly.

Point being, I don't think it's necessary. There is nothing wrong with adding one if you have the space, and all it can do is make it safer, but I don't think it's necessary.
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Old 06-07-2011, 08:40 AM #3
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Default Re: Voltage spikes?

With this specific driver No you dont need one.>
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