Touch-enabled stepless brightness adjustable rechargeable desk lamp imitating Xiaomi desk lamp

Designed based on touch chip SGL8023W and boost lithium battery charging chip CN3306. SGL8023 is generally used as a touch table lamp. Here I designed it to output a stepless dimming mode, and the output PWM is used to drive the LED lighting to the LED constant current chip PT4115. The input power supply for charging can be a 12V DC switching power supply or a 12V photovoltaic power generation panel. CN3306 is a boost lithium battery charging chip with a solar power maximum power adjustment function. The maximum power voltage is set through a voltage dividing resistor to achieve maximum power charging. In terms of 3D structure, up to five 18650 lithium batteries can be built in. The charging port is a threaded DC socket mounting hole with a boat-shaped switch mounting hole. Foldable design. Due to the size limitations of the 3D printer, the lamp post and lamp body are designed as two parts that can be spliced. Other materials to be prepared are as follows: 3D printing STL file download address: Print it: http://www.dayin.la/product/1177702.html The materials required to make it are as follows: 1.4 sections or 5 sections 18650 lithium battery 2. Lithium Battery protection board 3. LED light strip https://item.taobao.com/item.htm?spm=a230r.1.14.28.5f4972a66WSWue&id=561904411936&ns=1&abbucket=18#detail 4. Heat dissipation aluminum strip (39mmX12mmX3mm) 5. Boat type switch (21*15)*1 6.DC-220 DC power socket 7. Some screws and wires 8. Driver circuit board*1