This application note describes a digital constant-current LED controller based on STM8S208X, which can be used for LED streetlighting platforms. The controller implements real average current control for LEDs using a digital approach, offering low energy consumption and good performance.
The document details a new technique for performing real average current-control on an LED streetlight platform. The solution utilizes a DC-DC converter based on an 'inverse buck' topology, which offers advantages in power switch control and signal conditioning. A demonstration board (STEVAL-ILL031V1) is available to validate this approach.
| Total System Power | up to 120 W |
|---|---|
| Input Voltage | 48 V DC |
| Max Efficiency | up to 98 % |
| Microcontroller Model | STM8S208RB |
To describe a new technique based on a digital approach performing real average current-control on an LED streetlighting platform.
The control has been implemented on the STM8S208RB microcontroller.
The platform uses a DC-DC converter based on an 'inverse buck' converter.
Yes, a demonstration board is orderable with the code STEVAL-ILL031V1.