aytwartoofyoroo

#The7thLiChuangElectricityContest#USB current and voltage detection power meter

Overview

* 1. Introduction to project functions:

Measure voltage and current through USB and calculate power

* 2. Project attributes:

Jialichuang Summer Training Camp 2022

* 3. Open source agreement:

GPL3.0

* 4. Hardware part

1. The training camp solution for collecting voltage and current, the voltage regulator 3V3 uses MP2225 to support a maximum current of 5A, and the input voltage range is 4.5V-18V, which can increase its application range;
2. The main control uses the national technology N32G40C8L7, which is 5 yuan cheaper;
3. Use INA199 for current sampling;
* 5. The problem encountered

should be a hardware problem that causes the current to be close to 7A when unloaded, and the display is abnormal.

Design Files

Official program case.zip

Related Devices

Devices	Class	introduce	Datasheet
N32G430C8L7			Download
0603N101J101	Passive components;The patch capacitance	Accuracy: ±5% Capacitance: 100pF Rated voltage: 100V Temperature drift coefficient (dielectric material): NP0 (C0G) Material: NP0 (C0G)	Download
U-A-24DS-W-1	The USB connector		Download
USB公头插座	The connector;The USB connector	Male and Female: Male Connector Type: USB - Type A Number of Contacts: 4 Standard: USB 2 Not High Temperature Resistant	Download
RN1/2W1.6KΩFT/BA1	Passive components;Metal film resistor	Resistance (ohms): 1.6K Accuracy: ±1% Power: 1/2W Temperature coefficient: ±50ppm/°C 1/2W	Download
2.54-1x6P直针			Download
BL-HG036D-AV-TRB	LED optoelectronic/LED;Light-emitting diodes (leds)	Illumination color: yellow-green dominant wavelength/color coordinates: - Color temperature - CCT (K): - Baihong SMD 0603 Yellow Green LED Yellow-green SMD light-emitting diode 1.6x0.8x0.8mm (0603)	Download

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

Hot

Technical Resources More

Search Datasheet?

Supported by EEWorld Datasheet

Technical Videos More

Forum More

Update:2024-11-14 23:30:22

[Reading Month] Read a good book on RT-Thread technology and write down your reading notes
[size=4]Read a good book and leave behind some insights. EEWORLD Forum and RT-Thead Internet of Things Operating System invite everyone to read good books, swim in the ocean of RT-Thread knowledge, le
General Ideas for Ethernet Protection Circuit Design
Ethernet communication has been widely used in various fields, providing a convenient connection solution for the interconnection between devices. In pursuit of power consumption, speed and function,
What has changed in the controversial power battery war?
As the core power component of new energy vehicles, the performance of batteries largely determines the overall performance of the vehicle, and there has always been controversy over its technical rou
AC high voltage linear scheme to control two groups of lamps
Hello everyone!There is a case now, which requires a high-voltage linear solution, North America, AC120V lamps. There are two sets of lights, main lights and night lights, which are controlled by wall
ON Semiconductor IDE_V3.4.0.48 compilation error
Recently I want to install ON Semiconductor on my home computer to compile BLE MESH examples It is the same as the two error problems encountered by the forum friends, but it can be compiled and passe
The difference and connection between active and passive RFID
RFID (Radio Frequency Identification), commonly known as "electronic tags", is a contactless automatic identification technology that automatically identifies the target object and obtains relevant da

Datasheet More

Circuits More