Design with Charger Micro USB 5V 3A in Cirkit DesignerThe Charger Micro USB 5V 3A (Manufacturer: AC, Part ID: Charger) is a compact and efficient power supply device designed to deliver a stable 5V output with a maximum current of 3A. It connects via a standard Micro USB port, making it compatible with a wide range of electronic devices, including smartphones, tablets, single-board computers (e.g., Raspberry Pi), and other USB-powered gadgets.
This circuit converts AC power to DC using a bridge rectifier and regulates the voltage to 5V with a 7805 voltage regulator. It powers a USB port and indicates power status with an LED, while also providing a charging interface through a multi-charging cable.
Open Project in Cirkit Designer
This circuit is a battery management and power supply system that uses three 3.7V batteries connected to a 3S 10A Li-ion 18650 Charger Protection Board Module for balanced charging and protection. The system includes a TP4056 Battery Charging Protection Module for additional charging safety, a Step Up Boost Power Converter to regulate and boost the voltage, and a USB regulator to provide a stable 5V output, controlled by a push switch.
Open Project in Cirkit Designer
This circuit appears to be a solar-powered USB charging circuit with voltage regulation and an LED indicator. A solar cell charges a USB device through a 7805 voltage regulator, ensuring a stable 5V output. An electrolytic capacitor smooths the input voltage, while a resistor limits current to the LED, which likely serves as a power-on indicator.
Open Project in Cirkit Designer
This circuit is designed to convert AC power to regulated DC power. An AC source feeds a power transformer that steps down the voltage, which is then rectified by a bridge rectifier to produce a pulsating DC. This DC is further converted to a stable DC output by a step-down buck converter, which then provides power through a Micro USB connector.
Open Project in Cirkit DesignerBelow are the key technical details of the Charger Micro USB 5V 3A:
| Parameter | Specification |
|---|---|
| Input Voltage | 100-240V AC, 50/60Hz |
| Output Voltage | 5V DC |
| Maximum Output Current | 3A |
| Connector Type | Micro USB |
| Efficiency | ≥85% |
| Cable Length | Typically 1 meter |
| Operating Temperature | 0°C to 40°C |
| Storage Temperature | -20°C to 70°C |
| Safety Features | Overcurrent, overvoltage, and short-circuit protection |
The Micro USB connector used in this charger has the following pinout:
| Pin Number | Name | Description |
|---|---|---|
| 1 | VBUS (+5V) | Provides the 5V DC output voltage. |
| 2 | D- (Data -) | Data line, typically unused for charging. |
| 3 | D+ (Data +) | Data line, typically unused for charging. |
| 4 | ID | Identification pin, often left unconnected. |
| 5 | GND (Ground) | Ground connection for the circuit. |
The Charger Micro USB 5V 3A can be used to power an Arduino UNO via its USB port. Below is an example of how to use it in a simple LED blink project:
// Simple LED Blink Example
// This code blinks an LED connected to pin 13 of the Arduino UNO.
void setup() {
pinMode(13, OUTPUT); // Set pin 13 as an output pin
}
void loop() {
digitalWrite(13, HIGH); // Turn the LED on
delay(1000); // Wait for 1 second
digitalWrite(13, LOW); // Turn the LED off
delay(1000); // Wait for 1 second
}
Device Not Charging or Powering On:
Charger Overheating:
Intermittent Power Delivery:
Charger Not Working:
Q1: Can this charger be used with devices requiring less than 3A?
Yes, the charger will only supply the current required by the device, up to a maximum of 3A.
Q2: Is this charger compatible with fast-charging protocols like Quick Charge?
No, this charger provides a fixed 5V output and does not support fast-charging protocols.
Q3: Can I use this charger outdoors?
This charger is not weatherproof and should only be used in dry, indoor environments.
Q4: What happens if I connect a device requiring more than 3A?
The charger includes overcurrent protection and will shut down to prevent damage.