All Questions
Tagged with dc-dc-converter batteries
93
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Periodic Voltage and Current Fluctuations in Autonomous Robot System
I have an autonomous robot system powered by a 24V LiFePO4 battery that has several distributed PCBA's getting their power from the 24V battery, and also having their own on-board DC-DC buck ...
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1
answer
50
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Earth protection in PV + battery system
I'm building a system that looks like this:
PV -> solar charger (48 V) -> batteries (48 V) -> isolated DC/DC (48 V->12 V) -> non isolated DC/DC (12 V->3 V) -> load
The PV's are on ...
- 11
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22
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Lithium Ion Battery : Electrolytic Capacitor At Buck Converter Output
It is recommended not to parallel electrolytic capacitors with a battery due to the leakage current of the electrolytic capacitor (which is small but worthy of consideration over large time periods) ...
- 437
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35
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How to tweak tp4056 module to run on 8v?
I have a tp4056 module:
How can I tweak it to run on 4v to 8v range (it's maximum voltage rating according to the datasheet).
datasheet
- 354
2
votes
2
answers
128
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How to extend up-time after power supply is gone
I just started to work on a small home project. I have an indoor bike that I use quite a lot. The resistance of the bike can be adjusted manually in a purely mechanical way (by tightening a screw). ...
- 287
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2
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280
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How do DC/DC converters work as lithium battery chargers?
There's a lot of DIYs that utilize DC/DC converters to charge Lithium batteries. A quick Youtube search shows dozens of these DIYs. I was wondering how these home-made chargers work. Yes, DC/DC ...
- 103
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2
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145
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Why have 3 AAA batteries not one AA and raise voltage (how expensive is it to raise voltage from 1.5 to 5v)?
I have led headlight with 3 AAA batteries. I will rather have similar device use 1 AA battery, even if it will be more expensive. But seems there are no such devices. Why?
I've got the question after ...
- 247
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80
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Regulating 4 AA batteries to 5V over the discharge cycle of the batteries?
Over the discharge lifetime of these batteries the voltage might range from 6V down to 4V.
If the batteries were consistently over/under 5V, I could use a step up/step down converter such as a MCP1640/...
- 10.7k
1
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72
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Desigining a 3S battery charger step-down buck converter
I'm a hobbyist, so my electrical engineering skills are not top notch.
I'm service tech and I'm working on modifying portable coolers (thermoelectric and compressor based) where we add batteries to ...
- 157
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votes
1
answer
50
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PoL DC/DC on a +12V bus with battery
I'd like to integrate a PoL DC/DC converter such as this one from Mornsun : KUB4812QB-10A
It will convert from a battery (48V) to an auxilary 12V bus on which will be connected a 12V Lead-Acid or ...
- 445
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1
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51
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12 V vehicle power distribution question
I am trying to find a solution where I need to add a connection to power a device that is expected to draw 50 A. The car has a DC-DC converter which has a current limit of 160 A which is also used to ...
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2
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153
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Can I connect a step up converter for higher voltage with nine 3000mAh cells in parallel, or is it dangerous and doesn't work like that?
I'm a college mechatronics engineer student who is working on a production project about making an electrical device (like a toaster, alarm clock etc.) My device is a simple nichrome wire heater and ...
0
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1
answer
506
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How to properly wire fuse block, DC-DC converter, and load
I have a battery, a fuse block, and three PCs (Raspberry Pi.)
Is it better to have three separate DC-DC converters in front of the fuse block with the battery directly connected to the fuse block or ...
1
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2
answers
489
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How to convert 14.8V from Li-Po to 5V without producing heat? [closed]
I have a 14.8V Li-Po battery and I want to stepdown the power to 5V 3A as efficiently as possible without producing much heat. ...
user323657
1
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1
answer
243
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Buck–boost converter on a lithium battery with a variable DC output
I have a battery with a DC port that is rated 9-12V 10A. I don't really know what that means. My guess is that the voltage of the DC port can go from 12V to 9V when the battery capacity is low.
I need ...
