This is one of the first and simplest protocols for controlling luminaire brightness, originally used to control fluorescent light sources, where a voltage of 10 V indicated full power (100% brightness), a voltage of 1 V corresponded to the minimum brightness at which the connected light source could operate effectively, and at 0 V, the source was turned off. In LED sources, the full 0–10 V range is used, where a change of 0.1 V typically corresponds to a resolution of 1%.
The 0–10 V system is based on an analog signal; its value follows controlled voltage changes and is relatively susceptible to interference, which is difficult to eliminate in practice. Furthermore, when transmitting data over long distances, due to voltage drops, it requires complex stabilization and calibration, and it is impossible to synchronize it between devices. Despite its drawbacks, it is still widely used in control and automation systems, and an experienced design team can leverage its advantages, particularly in applications where control precision is not a critical factor.
Take advantage of the simplicity and wide applicability of the 0..1 – 10 V protocol—contact us to harness its proven potential in your lighting application!
As we mentioned earlier, this is one of the first and simplest protocols for controlling luminaire brightness, which makes it a proven and reliable solution for many applications. However, if you’d like to explore modern solutions or expand your product’s capabilities, please check out our other solutions.
Sterownik do LED z analogowymi wejściem 1-10V
A control system with precise mapping of the input voltage, converting the signal to digital PWM for controlling LED fixtures. No interference or flickering at low brightness levels. Mass production capability and project scalability – a well-optimized BOM in terms of component availability.
We used a buffered and filtered input circuit to make it immune to bus interference. By using a microcontroller, we implemented a feature allowing selection of a dimming curve to align linear control signals with the logarithmic psychophysiology of human vision. PWM, depending on the refresh rate, has a maximum resolution of 16 bits. The design was optimized for mass production, utilizing components with short lead times and availability for the next 5 years.
Our task was to design a control module for LED fixtures to enable the integration of light sources with the building automation system, based on PLCs with 0–10 V outputs. Eliminating interference, especially when control data is transmitted over long distances, is a significant challenge. This protocol uses an analog signal, and voltage drops are a natural physical phenomenon. The PWM output has high resolution and an adjustable refresh rate, allowing the system to be configured while eliminating flicker even at very low brightness levels (< 1%). Our team of engineers conducted simulations and tests in an electromagnetic compatibility chamber—the system complies with EN 61000-6-1/3 and EN 55015 standards. The design also addressed thermal management at the PCB level: optimizing ground paths and component placement reduced power losses.
We have included an auto-calibration function, via input voltage offset, for installations using longer cables. The circuit also allows for programming the response to the absence of a control signal, which is a critical requirement for BMS systems.
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