My Background
I have really been trying to grasp circuits but admit I have a hard time applying what I know to actually design and make a circuit. I took a basic circuits class for mechanical engineers but it was all in theory. We didn't have a hands on lab to physically see how it all works. So I have basic circuits knowledge but don't know how to apply it. For the past couple months I have been trying to apply what I've learned in my spare time, but I am not really getting anywhere. Help would be greatly appreciated.
Project Background
What I have
I have three (3) Coleman 50002 1-Watt Solar Powered Trickle Charger with Maximum Wattage: 1 watt; Ip = 80 mAmps@15 volts. The adapter is via the cigarette lighter in a car. The panel is used to maintain a vehicles 12V battery charge.
What I would like to have
I would like to make a circuit that can charge various types of batteries using the three solar panels. Specifically; AA 2650mAh NiMh batteries, 9V 400 mAh NiMh Batteries, and a 12VDC 7Ah lead acid battery.
Project Details
What I think I know
So my guess is that I will need to setup three seperate circuits and use a three way switch to determine which circuit will be active.
For the AA battery charging circuit I could probably charge up to six batteries in a day if I could get the voltage down to about 10.8V with the current at about 320mA. This is using an assumption that it is possible to break the voltage down to four parts of 3.6V @ 80mA within each of the three solar panels, wire the four parts each into parallel so that one panel produces a total of 3.6V @ 320mA, then wire the three panels in series for a final 10.8V @ 320mA. The batteries would then be charged in series?
Similar operations as above but respective to each battery type for each of the three circuits.
What I Don't Know/Current Problems/Questions
The problem is that each panel is one solid piece of glass, so I cannot break one piece into four pieces.
Is there a way to design a circuit that will convert the approximate 15V @ 80mA solar panel output to an approximate 3.6V @ 320mA output for the AA battery portion?
I have never made my own circuit board from custom designed circuit, but have a majority of the tools and hardware that may be required. I have been practicing using the Evil Genius Circuits book, but it covers basics and I am still unsure what types of components are needed for a given application. Any help on how to go about this circuit design would be GREATLY appreciated, sincerely. I really want to understand this stuff and feel the best way is to try and make things I can use.
Thanks so much for ANY help you all can give me
Sincerely,
Jake Wood
I have really been trying to grasp circuits but admit I have a hard time applying what I know to actually design and make a circuit. I took a basic circuits class for mechanical engineers but it was all in theory. We didn't have a hands on lab to physically see how it all works. So I have basic circuits knowledge but don't know how to apply it. For the past couple months I have been trying to apply what I've learned in my spare time, but I am not really getting anywhere. Help would be greatly appreciated.
Project Background
What I have
I have three (3) Coleman 50002 1-Watt Solar Powered Trickle Charger with Maximum Wattage: 1 watt; Ip = 80 mAmps@15 volts. The adapter is via the cigarette lighter in a car. The panel is used to maintain a vehicles 12V battery charge.
What I would like to have
I would like to make a circuit that can charge various types of batteries using the three solar panels. Specifically; AA 2650mAh NiMh batteries, 9V 400 mAh NiMh Batteries, and a 12VDC 7Ah lead acid battery.
Project Details
What I think I know
So my guess is that I will need to setup three seperate circuits and use a three way switch to determine which circuit will be active.
For the AA battery charging circuit I could probably charge up to six batteries in a day if I could get the voltage down to about 10.8V with the current at about 320mA. This is using an assumption that it is possible to break the voltage down to four parts of 3.6V @ 80mA within each of the three solar panels, wire the four parts each into parallel so that one panel produces a total of 3.6V @ 320mA, then wire the three panels in series for a final 10.8V @ 320mA. The batteries would then be charged in series?
Similar operations as above but respective to each battery type for each of the three circuits.
What I Don't Know/Current Problems/Questions
The problem is that each panel is one solid piece of glass, so I cannot break one piece into four pieces.
Is there a way to design a circuit that will convert the approximate 15V @ 80mA solar panel output to an approximate 3.6V @ 320mA output for the AA battery portion?
I have never made my own circuit board from custom designed circuit, but have a majority of the tools and hardware that may be required. I have been practicing using the Evil Genius Circuits book, but it covers basics and I am still unsure what types of components are needed for a given application. Any help on how to go about this circuit design would be GREATLY appreciated, sincerely. I really want to understand this stuff and feel the best way is to try and make things I can use.
Thanks so much for ANY help you all can give me
Sincerely,
Jake Wood