On 17 Nov 2006 20:48:47 -0800, acannell@xxxxxxx wrote:
I want to power 10 thermoelectric heat pumps at once from wall power.
(120VAC 60Hz). Ripple is somewhat important for these, but precise
voltage and current regulation is not. Each heat pump draws 17A at full
power, plus I need some extra current for fans, pumps, etc.. The heat
pumps need about 17V at full power. So I need an AC to DC power supply
which takes 120VAC 60Hz and outputs 17V at up to 200A. Could someone
point me in the right direction here? It needs to cost less than $200.
Ripple hurts these heat pumps but if its very slow I dont think it will
matter, even if its a couple volts. Current can vary up to say an amp.
That's under 6 cents per watt, about a fourth the going rate for a
cheap power supply.
What's the application? It's going to dump a lot of heat somewhere.
Re: Katrina (OT to garden stuff, dont flame me, just dont read it) ... (I have a heat pump that works off of ... >> electricity, and for back up during power outs, a simple fireplace in one ... >> room with an electric blower which of course won't work during a power ... >> priced food?... (rec.gardens)
Re: Global Warming, a Skeptics View, was Re: O.T. Atheists a small minority ? ...private homes will have to use wind or solar power to bring down the cost of electricity. ... I built my home to be passively solar effective with overhangs to shade windows in summer and still let in south and west light in the winter; I heat with cold water and cool with warm water - i.e., I have a ground water sourced heat pump, and I use the earth as a heat sink. ... (rec.arts.mystery)
Re: Global Warming, a Skeptics View, was Re: O.T. Atheists a small minority ? ...public transport systems only work effectively and economically ... more use of hydroelectric power would reduce pollution from power plants; ... effective with overhangs to shade windows in summer and still let in south and west light in the winter; I heat with cold water and cool with warm water - i.e., I have a ground water sourced heat pump, and I use the earth as a heat sink. ... It could be used through heat pump technology to heat and cool large office buildings in cities. ... (rec.arts.mystery)
Re: cheap 200A AC to DC power supply? ...power, plus I need some extra current for fans, pumps, etc.. ... It needs to cost less than $200. ...Ripple hurts these heat pumps but if its very slow I dont think it will ... if you need active cooling a mechanical heat pump may perform better. ... (sci.electronics.design)
Re: cheap 200A AC to DC power supply? ... If you can insulate the Peltier elements, ... Each heat pump draws 17A at full ...power, plus I need some extra current for fans, pumps, etc.. ...Ripple hurts these heat pumps but if its very slow I dont think it will ... (sci.electronics.design)
