Li-Ion battery charger, protector and 5V/2A booster. Use unprotected Li-Ion batteries which are rated for a discharge current of at least 5A !
inspired this guy イチケン / ICHIKEN
from this video https://www.youtube.com/watch?v=PZh5hzibdsk, i find my self able the do challenge to make USB charger output one port
please Subscribe to his channel, 👇👇👇
and give him 👍
(Know he speak in Japanese) but they are translation to English in YouTube parameters
# 1. Overview #
TinyLoad is a simple electronic constant current dummy load. The ATtiny85 measures voltage, current and temperature of the heat sink, calculates power, energy and battery capacity, controls the fan and displays all relevant data on the OLED. The button is used to switch between power/restistance and energy/capacity display.
Project Video: https://youtu.be/z7fddsFyD1E
A modern take on the original Tesla Coil using electronic circuitry; this specific type is a Dual Resonance Solid State Tesla Coil. This is based on Steve Ward's original design at http://stevehv.4hv.org/SSTC5.htm and updated for modern and easily available components.
input AC220V + -10%, output 0 ... 30V adjustable,
current 0 ... 1A adjustable
Using isolated flyback switching power supply structure,
high efficiency, primary and secondary side isolation
Small size, approximately equivalent to mobile hard disk, easy to carry
Built-in friendly HMI, LCD display, encoder adjustment
With additional and secondary development functions, such as batte...
# 1. Overview #
Li-Ion battery charger, protector and 5V/3A booster. Use unprotected Li-Ion batteries with low internal resistance which are rated for a discharge current of at least 7A! Connect the battery with short wires of 20AWG or thicker! Attach a heatsink on the back side of the PCB when drawing more than 2A of current continuously! Use a slide switch that can withstand a current of 6A!
> Please use a transformer with the following characteristics to get the full rated current: 9V-4A, 9V-3A. if the current exceeds 3A, the "L7805CV" voltage stabilizers may burn out, and use radiators to cool them.
Thank you for your attention, @IlyaBOT.
>Пожалуйста, для получения полного...
5Vbuck converter based on MC34063.
USB plug with 12V boost converter.
This work is licensed under Creative Commons Attribution-ShareAlike 3.0 Unported License.
5V buck converter based on MP2307.
This one is based on TI TPS63031 3.3v fixed output / 3.7v LiPo or 3xAA Battery as input / ~500 ma current / very low quescient current consumption ~50 uA / excellent choice for low power devices / power saving option /