Quick Charge¶
- USB Promoters Group : https://en.wikipedia.org/wiki/USB_hardware#USB_Power_Delivery
- Qualcomm : https://en.wikipedia.org/wiki/Quick_Charge
tech | year | max power |
---|---|---|
QC3 | 2016 | 36 W (12 V × 3 A) |
QC4 | 2017 | 100 W (20 V × 5 A) |
QC3+ | 2020 | 20mV steps from QC4 |
PD2.0 / USB 3.1 | 2014 | 100W ( 20V x 5A ) |
PD3.0 | 2015/2017 | 100W |
PD3.1 | 2021 https://www.usb.org/usb-charger-pd | 240W ( 48V x 5A ) |
Types¶
Solar¶
open-circuit 0.5 to 0.6 volts: https://en.wikipedia.org/wiki/Solar_cell
Pb¶
https://en.wikipedia.org/wiki/Lead%E2%80%93acid_battery - 1.8V loaded at full discharge, to - 2.1V in an open circuit at full charge
https://www.blazartheory.com/files/notes/phy2049/Lead_Acid_Batteries.pdf - lead (Pb 铅) terminal - lead(IV) oxide (PbO2) terminal - sulfuric(硫酸) acid(酸) (H2 SO4) bath
Ni¶
https://en.wikipedia.org/wiki/Nickel%E2%80%93metal_hydride_battery - starting voltage 1.4V - NiMH(镍氢) batteries have replaced NiCd(镍镉)
Li¶
https://en.wikipedia.org/wiki/Comparison_of_commercial_battery_types
Name | Discharge | V |
---|---|---|
ICR LiCoO2 钴酸锂 | 1-2C | 2.5 / 3.7 / 4.2 |
INR 三元锂 | 5-7C | 2.5 / 3.6 / 4.2 |
IMR LiMn2O4 锰酸锂 | 10-15C | 2.5 / 3.9 / 4.2 |
IFR LiFePO4 磷酸铁锂 | 25-35C | 2 / 3.2 / 3.65 |
DC UPS¶
Type | Vendor | Power | Link |
---|---|---|---|
Pb/Li | MeanWell | 120W~600W | https://www.meanwell.com/newsInfo.aspx?c=1&i=1106 |
Li/Pb | sw open | 60W+ | https://github.com/mini-box/ups |
Li 2S LED | hw open | 60W | https://github.com/TobleMiner/DC-UPS |