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Old 02-21-2011, 04:26 PM #65
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Default Re: Driver Mod For up to 1.8amps with 2x 3.7v or 3.0v cells

Quote:
Originally Posted by Blord View Post
The bad thing is that the host is heated so fast the runtime is 10sec or less. Otherwise something will go wrong.

I also was thinking of this.
I am planning something similar with bridging over the R27 (or equivalent) with 1ohm 1watt resistors like Lazeerer explained to get about 1.8A.


HOWEVER I am planning to drill a hole near to the pill and install an additional switch. This will toggle the parallel resistors on/off between +-1000ma and 1800ma. Considering it will be parallel there will be no risk (I think!) of any overcharged capacitors or any other problems. Please someone correct me if I am wrong!


Unlike you Blord I do not own any 445nm's so there is more motivation for me to do this. But I really like the idea of a really powerful 1W that does not get too hot and then having the option of making it 1.8A when it suits me.
I also like the option of saving battery life but still lazing with a laser that has the POTENTIAL to be a 1.8A at the click of a button.

Any criticism will me most welcome, I am not experienced at this in the least so yeah. Just wanted to share my idea with everyone maybe someone could take something from it.

Oh I have attached terrible a little paint diagram so you can get an idea of what I am talking about.


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Old 07-02-2011, 02:57 AM #66
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Default Re: Driver Mod For up to 1.8amps with 2x 3.7v or 3.0v cells

Quote:
Originally Posted by Humphry View Post
I also was thinking of this.
I am planning something similar with bridging over the R27 (or equivalent) with 1ohm 1watt resistors like Lazeerer explained to get about 1.8A.


HOWEVER I am planning to drill a hole near to the pill and install an additional switch. This will toggle the parallel resistors on/off between +-1000ma and 1800ma. Considering it will be parallel there will be no risk (I think!) of any overcharged capacitors or any other problems. Please someone correct me if I am wrong!


Unlike you Blord I do not own any 445nm's so there is more motivation for me to do this. But I really like the idea of a really powerful 1W that does not get too hot and then having the option of making it 1.8A when it suits me.
I also like the option of saving battery life but still lazing with a laser that has the POTENTIAL to be a 1.8A at the click of a button.

Any criticism will me most welcome, I am not experienced at this in the least so yeah. Just wanted to share my idea with everyone maybe someone could take something from it.

Oh I have attached terrible a little paint diagram so you can get an idea of what I am talking about.
Good thinking
just needs a switch
Obviously it is better to change the operation after switch Off the laser?
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Old 07-23-2011, 01:11 PM #67
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Default Re: Driver Mod For up to 1.8amps with 2x 3.7v or 3.0v cells

Nah its parallel so I just did the switch while it was on.
Worked like a charm.
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