Qifan Science and Technology_PD CNC Power Supply_SPPOWER

During the current testing process, it was found that SC8701 has a current problem in boost mode, causing the current reading to be unstable.

7.14 Update the modified power board and re-install the power board by yourself

Assembly demonstration video: https://www.bilibili.com/video/BV1xN4y1j7Hq?spm_id_from=333.337.search-card.all.click

Cooling fan specification: 4010 5V

Output binding post: Banana binding post M4*36 dual-purpose binding post

Screen: ST7789 1.9 inch 170*320

Officially designated program downloader open source link: https://oshwhub.com/dhx233/qf-euart

Qifan Science and Technology Open Source Official Q Group: 216066270

Project firmware continues to be updated

7-21 Log: Provide test DEMO, you can see whether your welding is correct

Fixed output:

Pin header interface:

1:+5V2A

2:-5V2A

3: Low ripple +3.3V1A

USB-A, USB-C interface:

+5V2A

Note: The above fixed output has a total power of 15W, please do not exceed this total when used together.

Adjustable power parameters:

Voltage range: 0-24V continuously adjustable

Current range: 0-5A continuously adjustable

Voltage resolution: initially set at 10uV

Current resolution: initially set at 1uA

Voltage adjustment step: initially set at 1mV

Current adjustment step: initially set at 10mA

Function:

Basic constant pressure cross flow - will be quickly debugged and guaranteed to be usable

The following functions will be continuously updated based on free time

1. Programmable, multiple time periods and specified voltages can be set to achieve specified functions

2. Support battery-specific functions such as fast charging and float charging.

3. Connect to IOT to realize multi-device linkage control

4. Finish the previous ones first and then talk about it