更新记录

1. 5月30日 I spent today working on the a

   I spent today working on the amps and looking for some more stuff for the buck converters since I am still concerned that I need to find good enough buck converters for the 5V I need and the +-12V that I need. I did though get the amplifier section wired up and to the two outputs, I think I might use the switches in the ports though to make it output better or not waste energy when not plugged in, but we will see. I'm gonna poke around a little more for buck converters but chugging along. 

2. 5月29日 I wasn't able to do a whole lo

   I wasn't able to do a whole lot today since I was busy, but got an hour down working on making sure parts worked, that my battery choice was good, and just cleaning up my schematics a little more. I learned a little more what the differerent types of labels do and when you use what, like how the hierarchical schematics can be used to make blocks of things so I have a schematic that just takes the 5V input from the charging USB-C port, goes in and does all the battery things, changes voltages to the 5V and +-12V, then just has those 3 as outputs since that's all the main schematic needs to get it all done. I had some issues figuring out how to make the regulator work since I need the input voltage range to be around 3V-4.2V since that's the voltage range for an 18650, which I also decided would for sure power it using 2 of them in a 1s2p configuration so they dont need to be balanced and will give me plenty of battery life. I tried to calculate it but I don't know exactly how much power it will use since the batteries will be at a much lower voltage so the 5V and 12V power usage will be amplified a lot for it. But this is the slightly updated version!  

3. 5月28日 I think I was pretty efficient

   I think I was pretty efficient today! Got a lot of work done on the schematic, getting all the ICs I needed since I found a design for a battery charger with a group of 4 ICs that was used by GreatScott on youtube and am getting those together. Had to spend a while looking at data sheets, adding the symbols and such, and just putting it together, but nearly half of it is together in some form with correct amount for a lot of the components. I need to figure out how the hierarchical sheets work since its my first time using those for this since the battery and charging bits are all internal for the actual use of it so they are in their own sheet. I hope that I can get it all done by the end of the week and start with the components and PCB this weekend so that it can be done end of next week, especially since I have work starting next week and an online class. But I'm trying my best now to make sure that the schematic is as easy as possible to read and figure out where things are with separation between the different "zones" or parts that interact so there isn't a rats nest of wires. I so far want to use an 18650 battery but I may switch to a higher capacity LiPo for its smaller size and higher capacity for a single cell. I also am working with parts that will need PCBA since I don't have a reflow plate or hot air gun. But this is the progress so far.