24 Apr, 23

Ac Ev Charger Main Control Board
For Electric Vehicles

Introduction To AC EV CHARGERS

As electric vehicles (EVs) continue to gain popularity, the demand for efficient and reliable charging infrastructure has grown exponentially. AC EV chargers play a crucial role in providing EV owners with an accessible and convenient method to recharge their vehicles. The main EV charger control board lies at the heart of every EV charger, managing the intricate processes of power conversion and communication with the vehicle.

Importance Of Control Boards

The control board is responsible for regulating the flow of power between the charging pile and the electric vehicle. It ensures the safety, efficiency, and reliability of the charging process while providing essential information to the vehicle and user. In this article, we will delve into the product specifications of a high-quality AC control board for electric vehicles.

Key Features Of Control Board

A well-designed charger control board must possess robust hardware and software specifications to cater to the diverse needs of electric vehicle users. Let’s explore these features in detail.

Hardware Specifications


The main control board should be equipped with a powerful processor that can handle complex tasks and deliver seamless performance during the charging process. A high-speed processor ensures faster communication, real-time monitoring, and improved efficiency.


Adequate memory is crucial for the main control board, as it allows for smooth operation and data storage. A combination of ram and flash memory enables the board to store and retrieve data efficiently, ensuring optimal performance during charging.


In today’s interconnected world, it must support various connectivity options such as Wi-Fi, Ethernet, and cellular networks. This allows for remote monitoring and control, firmware updates, and seamless integration with other smart devices.

Software Specifications

Operating System

A reliable and secure operating system is essential for the board. The OS should be lightweight, stable, and capable of supporting multiple communication protocols and security features.

Communication Protocols

The EV Charger’s main control board should support a wide range of communication protocols, including OCPP, Modbus, and Can Bus. This ensures compatibility with various electric vehicles and charging infrastructure systems.

Security Features

Given the sensitive nature of the charging process, it must incorporate advanced security features, such as encryption, a secure boot, and access control, to protect against unauthorized access and tampering.

Our Product Introduction

This item is an EV charger main control board for an ac charging pile with a capacity of 7 kW and a single phase, and its primary application is for charging electric vehicles with ac current.
The product includes charging protection, card charging, scanning code charging, mobile payment, internet monitoring, and other functions. It is composed of an EV charger main control board, an Ethernet communication board, a 4G communication board, a Bluetooth communication board, a card reader board, a display screen, and an external LED indicator light.
This device adheres to the tenets of industrial design, allowing for straightforward installation and rapid deployment.

AC EV Charger Main Control Board for Electric Vehicles - Internal Parts Introduction

Product Features


PCBA size:130mm*100mm*30mm

Indicator light:

The led indicator light is divided into internal and external versions, and the display screen led panel size and position can be customized according to customer requirements.


32a(the current can be set arbitrarily withthe key: 8a/10a/13a/16a)

Display screen:

The display displays the work information.

The module:

High-performance MCU built into the module.


High temperature, over-voltage, under-voltage, grounding, overcurrent, leakage current, and other protection functions.


The relay adopts a zero-voltage switching mode to improve product reliability and prolong product life.

Temperature detection:

PCB ambient temperature detection, input plug temperature detection, and double temperature detection function protection.

Application Field

1. Suitable for large, medium, and small electric vehicle charging stations
2. Urban residential areas, shopping plazas
3. Electric business places and other public places with parking spaces for electric vehicles high-speed service areas, station docks and other transportation hub areas
4. Private charging pile applications

Basic Product Parameters

Project Specification Remark
Product Name
7kw Single-Phase Ac Pile Main Control Board
Equipment Size
130*100* 30 ( L*W*H )mm
Main Control Board Size
Way To Install
Wall-Mounted \ Floor Type
Fit With Shell And Accessories
Mainboard Weight
Only The Master Board
Input Voltage
Input Frequency
Output Power
7kW (Maximum)
Output Voltage
Output Current
32A (maximum)
Applicable Scenario
Suitable Shell Using
Operating Temperature
Over Voltage Protection
Under Voltage Protection
Over Current Protection
≥110% rated output
Leakage Protection
30mA (Type A), (Type B optional)
The default type A
Card Reader

Main Control Board Size/Connection Terminal Definition

Appendix: Reference Criteria

IEC 61851-1:2017-02《Electric vehicle conductive charging system Part 1: General requirements》
IEC 62053-21:2003《Electricity metering equipment(a.c.)- Particular requirements
Part 21:Static meters for active energy(classes 1 and 2 ) 》

EN 50065-1:2001《 Signalling on low-voltage electrical installations in the
frequency range 3 kHz to 148,5 kHz-Part 1:General requirements,frequency
bands and electromagneticdisturbances》
EN 50557:2011《 Requirements for automatic reclosing devices(ARDs)for
circuit breakers-RCBOS-RCCBs for household and similar uses》
IEC 60050-151:2001《 International Electrotechnical Vocabulary Part 151:EIectrical and magnetic devices》
IEC 60050-195:1998《 International Electrotechnical Vocabulary Part 195:Earthing and protection against electric shock》

IEC 60050-441:1984《 International Electrotechnical Vocabulary Par 441:Switchgear,controlgear and fuses》
IEC 60050-826:2004《 International Electrotechnical Vocabulary Part 826:Electrical installations》
IEC 62196-2:2011-10《 Plugs,socket-outlets,vehicle connectors and vehicle Conductive charging of electric cehicles-Part2:
Dimensional compatibility and interchangeability requirements for a.c.pin
and contact-tube accessories》

Installation And Maintenance

Installation Requirements

The main EV charger control board should be easy to install and require minimal additional hardware components. A plug-and-play design allows for quick and hassle-free installation, reducing setup time and costs. Ideally, the EV charger control board should be compatible with various enclosure types and charging pile configurations.

Maintenance Tips

To ensure the longevity and optimal performance of the main control board, regular maintenance is necessary. Here are some tips for maintaining your control board:

1. Keep the control board and its surrounding area clean and free of dust or debris.
2. Periodically inspect the control board for any signs of physical damage or wear.
3. Check for firmware updates and install them to benefit from the latest features and security enhancements.
4. Monitor the system logs for any unusual activity or errors that may indicate a potential issue.
5. Consult the manufacturer’s guidelines for specific maintenance recommendations and procedures.

Compatibility With Electric Vehicles

A versatile charger’s main control board should be compatible with a wide range of electric vehicles, including sedans, SUVs, and commercial vehicles. To ensure maximum compatibility, the control board must adhere to industry standards and support various charging protocols. This ensures a seamless charging experience for users with different electric vehicle models.


The ac charging pile main control board is a crucial component of the electric vehicle charging infrastructure. Its hardware and software specifications, installation requirements, and compatibility with various electric vehicles are essential factors to consider when selecting a reliable and efficient control board. By investing in a high-quality main control board, electric vehicle owners can enjoy a safe and convenient charging experience.

Derek Ke

Hey, I’m Derek Ke, the founder of Moredaydc.com, an expert in solar electrical products and ev charging.
In the past 15 years, we have helped 60 countries and nearly 500 customers (such as farms, residences, industrial and commercial) solve new energy and green power problems. This article aims to share more knowledge about solar electricity and new energy with everyone, so that green electricity can enter every home.

Common Queries

Frequently Asked Questions

A: The main control board regulates the flow of power between the charging pile and the electric vehicle, ensuring a safe and efficient charging process. It also manages communication between the charging pile, the vehicle, and the user.

A: Key hardware specifications include a powerful processor, adequate memory, and various connectivity options such as Wi-Fi, Ethernet, and cellular networks.

A: A reliable operating system, support for multiple communication protocols, and advanced security features are essential software specifications for a main control board.

A: Regular cleaning, periodic inspections, firmware updates, and monitoring system logs are some ways to maintain the main control board.

A: A well-designed main control board should be compatible with a wide range of electric vehicles. Compatibility depends on adherence to industry standards and support for various charging protocols.

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