SLUU885C March 2012 – June 2024 UCD3138 , UCD3138064 , UCD3138064A , UCD3138128 , UCD3138A , UCD3138A64
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The term TI HV EVM refers to an electronic device typically provided as an open framed, unenclosed printed circuit board assembly. It is intended strictly for use in development laboratory environments, solely for qualified professional users having training, expertise, and knowledge of electrical safety risks in development and application of high-voltage electrical circuits. Any other use and/or application are strictly prohibited by Texas Instruments. If you are not suitably qualified, you should immediately stop from further use of the HV EVM.
The UCD3138PFCEVM-026 assists designers to evaluate the operation and performance of the UCD3138 digital controller in a Power Factor Correction (PFC) application. This EVM is a standalone PFC preregulator that is Single-phase Boost PFC by default. But, it can be easily reconfigured into 2-phase Interleaved PFC and Bridgeless PFC. This EVM is used with the UCD3138CC64EVM-030 control card, which contains a 64-pin VQFN UCD3138RGC chip.
This EVM is a standalone single-phase boost PFC (power factor correction) pre-regulator implemented using the UCD3138 digital power controller from TI. The EVM UCD3138PFCEVM-026 is comprised of a boost PFC power stage board and a control card (UCD3138CC64EVM-030, also available as a separate EVM from TI) on which resides the UCD3138 controller that is programmed with the digital PFC firmware.
The UCD3138PFCEVM-026 EVM can be evaluated in the stand-alone mode and requires no intervention from a PC. However, TI also offers a GUI called Texas Instruments Fusion Digital Power Studio, which can be used to re-configure various electrical design parameters of the EVM and download the UCD3138 with custom firmware developed by the user that is appropriate to and compatible with the hardware design.
The default configuration of this EVM is Single-phase Boost PFC. But, it can be easily re-configured with simple hardware and firmware modifications into a 2-phase Interleaved PFC or Bridgeless PFC. Reference Evaluating UCD3138 in Interleave PFC or Bridgeless PFC Configurations using UCD3138PFCEVM-026 for re-configuration instructions.
Three EVMs are included in the delivered box: a UCD3138PFCEVM-026 power stage, a UCD3138CC64EVM-030 control card, and a USB-TO-GPIO adapter. A hard copy of Evaluation Module Electrical Safety Guideline is also included in the box.
This user's guide provides instructions on how to operate the EVM's single-phase boost PFC configuration. This user's guide also provides basic GUI operation instructions, including how to use the GUI to tune PID coefficients digitally. Lastly, a high-level description of the UCD3138 single-phase PFC configuration, firmware and control algorithm is provided.