Providing all of the open source hardware and software needed to jumpstart LED lighting design, Texas Instruments has introduced its new TMS320C2000 real-time microcontroller (MCU) multiDC/DC colour LED kit. The new kit includes separate DC/DC power stages to control two RGB and two white LED strings or up to eight white LED strings.
The multiple DC/DC power stage topology was designed for applications that require a variety of LED types and string lengths for colour and intensity purposes, such as automotive and stage lighting.
The kit reduces system cost and complexity because its single C2000 Piccolo MCU executes all of the power stages while leaving headroom for other functions such as colour mixing, PWM dimming, thermal sensing and correction, ambient lighting compensation and LED fault protection. Developers can easily adapt the kit for varying design needs, as it includes a modular controlCARD, as well as a detachable LED panel with white and RGB LEDs.
The graphical user interface (GUI) simplifies the evaluation process by providing simplified control to adjust power stage current levels for experimentation with brightness and colour mixing. Software configurable maximum current allows for simple field upgrades and offers flexibility to adjust power stages in software as opposed to time-intensive redesign of system hardware. Onboard isolated XDS100 USB JTAG emulation simplifies debugging and programming. Free controlSUITE software includes examples for closed-loop average current control of DC/DC power and LED driver stages, as well as detailed lab documentation of software structure and functionality.
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