Verified
Square wave control can cause motor noise and jerky acceleration, reducing ride comfort and increasing wear.
The Avetlink AK brushless motor controller uses SVPWM—space vector pulse-width modulation—to deliver smooth sine wave motor control. It automatically recognizes 48V, 60V, and 72V battery systems.
The supplied description reports motor noise below 45 dB. A logistics-company reference case also reports:
- 40% lower motor temperature rise.
- 18% longer driving range.
The dual-drive version supports compatible vehicles that need coordinated control of two motors, including demanding delivery applications.
Core Features
- 32-bit DSP processor: Provides precise sine wave motor control.
- Automatic voltage detection: Supports 48V / 60V / 72V systems without manual voltage selection.
- Heat management: An aluminum housing and thermally conductive silicone help transfer heat.
- Water protection: The waterproof version has a stated IP67 protection rating.
Installation and Maintenance Tips
1. Leave enough airflow around the controller’s cooling surfaces.
2. Do not direct a high-pressure water jet at the connectors.
3. Check electrical connections regularly for looseness or damage.
Frequently Asked Questions
Q1: Does it support two motors?
The AK dual-drive version supports coordinated control of the main and auxiliary motors, with reported synchronization timing of 0.1 ms.
Q2: What protection tests are listed?
The waterproof version reportedly passed a 72-hour salt-spray test and an immersion test at 1 metre depth. The immersion duration is not specified; the 72-hour figure applies to the salt-spray test.
Q3: Can it control high-speed motors?
The stated maximum supported motor speed is 6,000 rpm, allowing use in compatible electric scooter applications.
Q4: How does it protect against overheating?
NTC temperature sensing monitors heat. When the temperature exceeds 85°C, the controller progressively reduces current to help protect the MOSFETs from overheating.
Q5: What after-sales support is listed?
The original terms specify a 24-month warranty and remote technical support with a two-hour response. Confirm the applicable Avetlink terms before ordering.
Reference Fleet Results
The supplied text describes a shared e-bike operator in Shenzhen using 2,000 controllers over six months. Its reported results were:
- 0.35% controller failure rate.
- 82% fewer user complaints about abnormal motor noise.
The source also lists premium shared e-bikes and delivery vehicles as applications. These reference results illustrate the intended benefits of quieter operation, smoother power delivery, and improved reliability; they are not independently verified Avetlink results.
| Power | 1200W–1500W |
| Voltage | 48V / 60V / 72V |
| Undervoltage | 41V / 51V / 61V |
| Accelerator Voltage | 0.8V–4.3V |
| Maximum Current | 50A–60A |
| Wire Diameter | Terminal |
| illumination | 4 indicator lights |
| color | customizable |
| Place of Origin | China |
