demuro1
New Member
Hello, I am working on a diy project installing a solar array to power a starlink satellite for internet use. The entire project is dc.
I am running Solar panels into a renogy charge controller which connects to two 24v batteries in parallel for storage. The batteries initially connected to this 24V-48V (240W) step up converter. The wattage was double what I need and I blew up the dishypowa board I was trying to power (It's been a minute since I have done anything like this and I did not use any fuses the first time I turned the system on). I subsequently bought this 24V-48V dc-dc step up converted with a 3 amp max output and used a 250V 4 Amp quick blow fuse.
I keep blowing fuses and I don’t know what to do. My power needs are 48V @ 120 W (2.5A). | believe I have the voltage. Testing with a dmm I see 48 volts. I think the issue is current. So how do I limit current without affecting voltage. I have read about JFTs and NTC's but am unsure how to size/ spec them to get the right one to meet my power needs. I need to limit current from the in column to the out in the attached table.
I would appreciate any help you can offer. If you have a better recommendation for the dc-de step up converter, or anything downstream from the batteries I welcome that feedback too.
I am running Solar panels into a renogy charge controller which connects to two 24v batteries in parallel for storage. The batteries initially connected to this 24V-48V (240W) step up converter. The wattage was double what I need and I blew up the dishypowa board I was trying to power (It's been a minute since I have done anything like this and I did not use any fuses the first time I turned the system on). I subsequently bought this 24V-48V dc-dc step up converted with a 3 amp max output and used a 250V 4 Amp quick blow fuse.
I keep blowing fuses and I don’t know what to do. My power needs are 48V @ 120 W (2.5A). | believe I have the voltage. Testing with a dmm I see 48 volts. I think the issue is current. So how do I limit current without affecting voltage. I have read about JFTs and NTC's but am unsure how to size/ spec them to get the right one to meet my power needs. I need to limit current from the in column to the out in the attached table.
I would appreciate any help you can offer. If you have a better recommendation for the dc-de step up converter, or anything downstream from the batteries I welcome that feedback too.
measured unit | In | Have out | Need out | |
Voltage (V) | 24 | 48 | 48 | |
Current (A) | Unk | 5 or 3 | 2.5 | |
| Unk | 240 or 144 | 120 |
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