Target Applications

Digital controlled industrial AC/DC
Network PSU with 48V output
Portable power station with bidirectional AC/DC
Server PSU with 12V output & digital control (>1kW)
Single digital controller with primary side control

Features & Specification

Rated Power: 3.6kW
Input: 90-265V AC, Output: 380V DC
Switching Frequency: 65kHz
Peak Power Efficiency: 98.93%
> 180 W/in³ power density in an x-y dimension of less than 68-mm × 121-mm space and maximum height of 32 mm

PMP23338 Design Specification
Vin (Min) (V)	90
Vin (Max) (V)	265
Vout (Nom) (V)	385
Iout (Max) (A)	9.35
Output Power (W)	3599.75
Isolated/Non-Isolated	Non-Isolated
Input Type	AC
Topology	Boost - PFC

Description

This reference design demonstrates a method to control a continuous conduction mode (CCM) Totem pole power factor correction converter (PFC) using a C2000™ TMS320F280039C real-time MCU.

This design is bidirectional and works as inverter in grid connected (current controlled) mode. The converter is designed to support a maximum input current of 16-ARMS with peak power of 3.6 kW. The LMG3522 top-side cooled GaN device with integrated driver and protection enables higher efficiency while reduces power supply size and complexity. In addintional, the design also supports adaptive dead time for efficiency improvements, input cap compensation scheme for improved power factor at light loads, and non-linear voltage loop to reduce voltage spikes under transient in PFC mode.

The F28003x C2000™ real-time MCU is used for all the advanced controls including re-rush current control, baby boost operation during an AC drop out event, e-metering, and communication between PFC and house-keeping controller.

Compared with PMP23069, the EVM hardware has been redesigned to feature a AMC1306 alongside of hall sensor for better current sensing.

Software Device Usage
Device	F28003x
Memory Consumption	RAM: 8.7KB Flash: 14.1 KB
MIPS Consumption	61 MIPS (ISR1: 53.5, ISR2: 7.5)
C28x and/or CLA	C28x
# of PWM Channels (EPWM or HRPWM)	5 EPWM Channel
# of ADC Channels	8 ADC Channel
CMPSS	2
SDFM	Yes
Control Methodology	PI-based inner current control loop and PI-based outter voltage control loop
ISR Frequency	ISR1 (current): 65kHz ISR2 (voltage): 10kHz

PMP23338 EVM Board

C2000 MCU interface to Totem Pole PFC Block Diagram

Relevant Links

Useful links regarding the reference design are provided below:

Note: To import and evaluate CCS project using the button above, please access the current page via Resource Explorer from CCS, or CCS Cloud. (go to View->Resource Explorer)

Steps to Run the Example

It's strongly recommended to first read through the User Guide/Software Guide for any specific setup instructions and hazard warnings before proceeding.
To import CCS projects, either import via the button above or mannually select the file directory where this solutions resides.
Build the project within the CCS project menu, then launch a CCS debug session and run the executable.

Release Notes

Shown below lists all the software revision history for this reference design:

Software Revision	In SDK Release	Changelog
v1.00.00	5.01.00.00	First release, on F28004x devices in C2000Ware Digital Power SDK
v1.02.00	5.02.00.00	Changes & Enhancements: Modified software for new revision of main board Added E-meter calibration through syscfg
v2.00.00	5.04.00.00	New device support & Enhancements: Added F280013x as a supported device Added reference links to release notes within the solution Updated .syscfg file to reflect the new device and package arugments Updated powerSUITE version to support C2000 sysconfig options
v3.00.00	5.06.00.00	Changes: Removed F280013x based firmware support due to lack of SDFM (sigma delta) based current sensing for E-metering application Bug fix for F28003x firmware to include code to close inrush relay and operate baby boost. Update in the userguide based on descope of F280013x firmware

Hardware design files

For EVM design files such as schematics, BOM, PCB layouts & assembly files, please visit TI design webpage from the link above.

Help and Support

For additional help and support, please visit E2E™ design support forum

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