AC Charger Controller for 3.5kW–22kW EV Charging
Tonhe Technology AC Charger Controller is a compact and intelligent control platform designed for 3.5kW, 7kW, 11kW and 22kW AC EV charging systems. Supporting both single-phase and three-phase applications, it integrates charging control, energy metering, communication interfaces and OCPP connectivity to provide a reliable control foundation for connected AC chargers.
Developed on a Linux platform, the controller offers flexible system integration for residential, commercial, public, workplace and fleet charging applications. Optional 4G, card reader, external meter and LED indicator modules further expand its configuration options for different charger designs and market requirements.
Advantages about Smarter AC EV Charging
Wide Power Range: 3.5kW–22kW AC Charging
Intelligent Charging Control: Reliable Control for AC Charging
OCPP Connectivity: Smart Communication with Charging Platforms
Integrated Energy Metering: Built-in Energy Measurement
Flexible Configuration: Designed for Different Charger Configurations
How the AC Charger Controller Works
The controller serves as the control and communication core inside an AC EV charger, coordinating charging functions, energy measurement, user interfaces and communication with the charging management platform.
01 — Charging Control
Configurable Charging Power
The controller supports configurable rated output settings for:
3.5kW/7kW/11kW/22kW
It also supports remote power adjustment, while the remotely configured current remains within the rated current defined by the DIP switch.
02 — Protection & Monitoring
Multi-Layer Protection for Safer Charging
The controller continuously monitors key operating conditions and supports protection functions including overcurrent, overvoltage, undervoltage, overtemperature, ground detection, leakage detection, emergency stop and relay adhesion detection.
When defined fault conditions are detected, the controller can stop or prohibit charging according to the system logic.
03 — Energy Metering
Integrated Energy Measurement
A power metering chip is integrated into the controller board.
It provides 1% metering accuracy and energy data with three decimal places, supporting accurate charging energy measurement.
04 — User Authentication
Multiple Charging Start Methods
The controller supports different charging initiation methods:
QR Code Charging/Card Charging/Password Charging/Plug & Charge/Scheduled Charging
This allows charger manufacturers to configure different user access and charging scenarios.
Designed for Flexible AC Charger Integration
The THACKZQ integrates multiple control, communication and peripheral interfaces into a compact 155mm × 142mm controller board.
Its interface architecture provides the connections required for AC charging control, energy metering, user interaction, network communication and software maintenance.
AC Power Interface: AC L / AC N / PE
Provides the AC power interface required for the charging system.
Digital Inputs: E-STOP / DIN-1 / DIN-2
Supports digital input signals for emergency stop and other system control functions.
Meter Communication: RS485-A / RS485-B
Provides an isolated RS485 interface for communication with the energy meter.
Card Reader Interface: DC5V / TXD / RXD / GND
Supports integration with card-reader modules for charging authentication.
Display Interface: 5-Inch Color Capacitive Touchscreen
The controller supports a 5-inch color capacitive touchscreen through the LCD interface.
Indicator Interface: Power / Charging / Error
Supports status indication for different operating conditions.
Network & USB: 10/100M Ethernet + USB
The Ethernet interface supports 10/100M adaptive communication, while USB supports program upgrades and file import/export.

Linux-Based Control Platform for Connected AC Charging
Developed on a Linux platform, the Tonhe AC Charger Controller integrates local charging control, user interaction, network communication and remote charging management.
The controller provides Ethernet connectivity and supports optional 4G communication, enabling AC charging equipment to connect with charging management platforms and support remote operation.
01 — Network Connectivity
Ethernet & Optional 4G Connectivity
The controller provides a 10/100M adaptive Ethernet interface and supports an optional 4G module.
This allows charger manufacturers to select different network configurations according to their deployment requirements.
02 — Remote Configuration
Configure and Manage Charging Equipment Remotely
The controller supports remote configuration of key parameters, including: IP Address/Port Number/Charger Number
This simplifies charger deployment and remote system management.
03 — Real-Time Status Monitoring
Stay Connected to Charging Equipment
The system supports real-time charging station status queries, allowing operators or platforms to monitor the operating condition of connected charging equipment.
04 — OCPP Platform Connectivity
Connect AC Chargers with Charging Management Platforms
OCPP connectivity enables communication between the AC charger and charging management platforms.
It supports connected charging functions such as: Remote Configuration/User Authentication/Charging Status Management/Remote Charging Management
05 — Software Maintenance
Convenient Program Upgrade
The USB interface supports program upgrades as well as file import and export, helping simplify controller maintenance and software management.
A Flexible Control Foundation for Residential, Commercial and Public AC EV Charging
Tonhe Technology AC Charger Controller provides a flexible control foundation for different AC EV charging applications.
Supporting configurable 3.5kW/7kW single-phase and 11kW/22kW three-phase charging systems, the controller can be integrated into a wide range of AC charging products, from residential wallboxes to commercial and public charging equipment.
Its charging control, energy metering, authentication and network communication functions support different deployment requirements and help charger manufacturers build connected AC charging solutions for various markets.
Application 01 — Residential Charging: Home / Garage
Designed as a control core for residential AC wallboxes, supporting convenient and connected home charging.
Application 02 — Commercial Charging: Shopping Mall / Hotel
Suitable for commercial charging equipment deployed at shopping centers, hotels and other destinations where connected charging management is required.
Application 03 — Workplace Charging: Office / Corporate Campus
Supports AC charging solutions for employees and company vehicles in workplace and corporate parking environments.
Application 04 — Public Charging: Parking / Public Charging Network
Provides a control foundation for AC chargers deployed in public parking areas and connected charging networks.
Application 05 — Fleet Charging: Company / Delivery Fleet
Can be integrated into AC charging systems serving company and delivery fleets, with remote management and charging status monitoring capabilities.
Application 06 — Destination Charging: Hotel / Resort / Restaurant
Suitable for destination charging environments where EV drivers can charge while visiting hotels, resorts, restaurants and other facilities.
From private wallboxes to connected commercial charging networks, Tonhe provides a flexible control foundation for modern AC EV charging systems.

A Flexible Control Platform for OEM, ODM and System Integration
The Tonhe AC Charger Controller is designed for integration into a wide range of AC EV charging products, helping charger manufacturers develop connected and intelligent charging solutions across different power levels and application scenarios.
With multiple control, communication and peripheral interfaces, the controller can serve as the central control unit of an AC charger and connect key components such as the display, energy meter, card reader and communication network.
The configurable charging power architecture supports different AC charger designs, providing a flexible platform for manufacturers developing their own charging products.
One Controller Platform for Multiple AC Charger Configurations
Whether developing a compact residential wallbox or a connected commercial AC charger, manufacturers can use the Tonhe controller as a common control foundation across different product configurations.
Key Specifications of the THACKZQ-CE AC Charger Controller
Item | Specification |
|---|
Product | AC Charger Controller |
Model | THACKZQ-CE |
Charging Power | 3.5kW / 7kW / 11kW / 22kW |
Charging Type | AC Charging |
Phase | Single-Phase / Three-Phase |
Platform | Linux |
Energy Metering | On-board Single-Phase Metering |
Metering Accuracy | 1% |
Energy Data Resolution | Three Decimal Places |
Communication | Ethernet / RS485 / Communication Interfaces |
Ethernet | 10/100M Adaptive |
OCPP | Supported |
Display | 5-inch Color Capacitive Touchscreen Support |
Digital Input | E-STOP / DIN-1 / DIN-2 |
USB | Program Upgrade / File Import & Export |
Real-Time Clock | Supported |
Backup Power Supply | Supported |
4G Module | Optional |
Card Reader | Optional |
External Meter | Optional |
LED Indicator | Optional |
Cooling | Natural Cooling |
Operating Temperature | -20°C to +55°C |
Operating Humidity | 5%–95% RH, Non-Condensing |
Altitude | ≥2000m |
Dimensions | 155mm × 142mm |
MTBF | 100,000 Hours |
Certification | CE |
CE-Certified Control Technology for AC EV Charging Systems
The THACKZQ-CE AC Charger Controller is CE certified and designed for integration into AC EV charging equipment for international markets.
The controller combines integrated protection, energy metering, communication and control functions within a compact hardware platform, providing a reliable foundation for AC charger development.
FAQ
Q1. What is an AC Charger Controller?
The Tonhe AC Charger Controller is the central control unit of an AC EV charger. It coordinates charging control, power adjustment, energy metering, protection, user authentication and communication functions.
Q2. What charging power does the controller support?
The controller supports configurable 3.5kW, 7kW, 11kW and 22kW AC charging output settings.
Q3. Does it support both single-phase and three-phase AC charging?Yes. The controller supports 3.5kW/7kW single-phase and 11kW/22kW three-phase AC charging configurations.
Q4. Does the AC Charger Controller support OCPP?
Yes. The controller supports OCPP platform connectivity for connected AC charging applications. The specific OCPP version should be confirmed according to the applicable product/software configuration.
Q5. Does it support Ethernet and 4G communication?
Yes. The controller provides 10/100M adaptive Ethernet and supports an optional 4G module.
Q6. Does the controller support energy metering?
Yes. An on-board power metering chip provides 1% metering accuracy, with energy data displayed to three decimal places. An external meter option is also available.
Q7. Can it be integrated into a custom AC EV charger?
Yes. The controller provides multiple interfaces for AC charger integration, including digital inputs, RS485, display, card reader, indicator, Ethernet and USB interfaces.
Q8. What optional modules are available?
Optional configurations include:
4G Module, Card Reader, External Meter, LED Indicators
Q9. Is the controller CE certified?
Yes. The THACKZQ-CE AC Charger Controller is CE certified.
Q10. What applications can the controller support?
The controller can be integrated into AC charging systems for residential, commercial, workplace, public, fleet and destination charging applications.