Chapter 39 - The Return of the DC-DC Demon

Thursday, December 03, 2009

Back in Chapter 31, I had to deal with a 45-amp converter that could not meet the demands of running a 60-amp power steering pump.

We thought the problem was solved by having a powerful 12-volt battery run the steering pump, coolant pump, vacuum pump, and headlights.

All the DC-DC converter had to do was to charge up that battery when the car was plugged in.

But, now it can’t do even that. Time for a more powerful converter!

Metric Mind sells a German-made converter that is highly considered, but is costly.

Lee has a different idea.

Lee tells me he can get American-made parts on eBay, and then build a converter as powerful as we like. This will take longer, but hopefully, will give us exactly the power that is needed.

A few weeks later we have 2 used Vicor converters.

They are of a modular design which makes it easier to change the output power level.

In the photo above you can see that each unit can hold up to 8 power circuit boards. You can also see that each unit is a good 12 inches long; much bigger than the old DC-DC.

Finding the right spot to mount this large unit will be difficult.

I will also need help from one of my electrical engineer friends in order to determine what other parts I need to buy.

Next: the Digital Dash problem.

Posted by admin on 12/03/09
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About Voltvette

One of our long-time members and volunteers has been converting his vintage Corvette into an all-electric vehicle.  You can keep up with his progress here - check back regularly for updates!

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