DC - DC converter 80 - 140 Volts 8 - 10 amps

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GRMarks
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DC - DC converter 80 - 140 Volts 8 - 10 amps

Post by GRMarks »

Can anyone help me to find a DC - DC converter with a voltage range of 80 - 140 and about 8 - 10 amps in a small package ?
I am a computer programmer and not an electrical engineer so if a mod to an existing power supplt is recomended can you incluse detailed instructions on how to do it please.

An of the shelf item would be prefered.

My little experiment with the 4 small dc-dc converters looks to have failed with the 2 modules running from the top 1/2 of the battery pack now only outputting 3.5 volts instead of 12.5. SeeMY TZR 250 Project neer the bottom of the post.
Regards

Glenn Marks
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KDRYAN
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DC - DC converter 80 - 140 Volts 8 - 10 amps

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Adverse Effects
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DC - DC converter 80 - 140 Volts 8 - 10 amps

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Catavolt
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DC - DC converter 80 - 140 Volts 8 - 10 amps

Post by Catavolt »

STD laptop power supply will take 360-90vdc,
Just cut the plug and put DC in you can parrallel a 2 or 3 up.
Most switch mode power packs can run on DC.
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DC - DC converter 80 - 140 Volts 8 - 10 amps

Post by coulomb »

Catavolt wrote: STD laptop power supply will take 360-90vdc,
Just cut the plug and put DC in you can parallel a 2 or 3 up.
Most switch mode power packs can run on DC.

I find that most laptop power supplies run at about 19 V.

Note that ordinary PC power supplies, which have beefy 12 V outputs which could readily be boosted to 13.6 V, are not suitable for < 120 VDC input. See the DC to DC converters discussion.
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GRMarks
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DC - DC converter 80 - 140 Volts 8 - 10 amps

Post by GRMarks »

Seems I'm out of luck then (so far) as my pack is 132 Volts max and as low as 72 volts min (thow it will never get there as the BMS will set of warnings at 90 volts.
I tried ordering the sugested item from evparts only to get an email saying they are out of stock and did I want to wait ? They won't have any for 2 months.

I'm on holidays in 2 weeks for a month so maybe I'll just have to wait (2 weeks after my holidays).

Thanks everyone for the sugestions anyway. Any more sugestions ?

Catavolt how is your bike going ? I see you blew up your motor on the test day. Also the video clip only had you going at a maximum of 125 km/h. Is that correct ? It also said that the other bike (the R1) got to 280 km/h down the strait - is that realy correct ?
If so seems you are not even in the race.
I was hoping you would be more competitive.
Regards

Glenn Marks
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