11

16-bit Embedded Control Solutions

Digital Power and Lighting Reference Designs &

Development Boards

Reference Designs

Platinum Rated 720W AC/DC Reference Design

This reference design demonstrates the

flexibility and power of dsPIC Digital Signal

Controllers in switch-mode power supplies.

This reference design has a peak efficiency

of 94.1% and achieves the ENERGY STAR

CSCI Platinum Level. It features a 2-phase

interleaved power factor correction boost converter followed

by a 2-phase interleaved two-switch forward converter with

synchronous rectification.

Quarter Brick DC/DC Converter Reference Design

This reference design provides an easy

method to evaluate the performance,

and features of SMPS DSCs in high

density quarter brick DC-DC converters

for Intermediate Bus Architectures

(IBA). This reference design is implemented using a

single dsPIC33F “GS” digital power DSC that provides full

digital control of the power conversion as well as system

management functions.

DC/DC LLC Resonant Converter Reference Design

This reference design operates over a

wide input voltage range (350-420V DC)

with a nominal input of 400V, providing

a 12V DC output, while maintaining

high-voltage isolation between the

primary and secondary. This reference

design is implemented using a single dsPIC33F “GS”

digital power DSC that provides full digital control of the

power conversion and system management functions.

Digital Power Interleaved PFC Reference Design

High performance power supplies are

used in a wide variety of applications

ranging from telecommunication

equipment, industrial equipment, digital

televisions, lighting, air conditioners and

other home appliances. They all need solutions for power

factor correction to improve overall efficiency, improve the

input power factor, voltage regulation and Total Harmonic

Distortion (THD) of the input current.

Digital Pure Sine Wave Uninterruptible Power Supply

(UPS) Reference Design

This reference design demonstrates

how digital power techniques when

applied to UPS applications enable easy

modifications through software, the use

of smaller magnetics, intelligent battery

charging, higher efficiency, compact designs, reduction in

audible and electrical noise via a purer sine-wave output,

USB communication and low-cost overall bill-of-materials.

Grid Connected Solar Micro Inverter

Reference Design

This reference design ensures maximum

power point tracking for PV panel

voltages between 20V to 45V DC and has

a maximum output power of 215 Watts.

High efficiency was achieved by implementing a novel

interleaved active-clamp flyback topology with Zero Voltage

Switching (ZVS). dsPIC33F ‘GS’ devices enable designers

to easily and cost effectively develop products using

advanced switching techniques/topologies that lower

switching losses and improve overall system efficiency.

Two versions of this design are available to support 120V

and 230V grids

Additional information for all reference designs is available

Development Boards

MPLAB®Starter Kit for Digital Power (DM330017)

This Starter Kit allows the user to

easily explore the capabilities and

features of the dsPIC33F GS Digital

Power Conversion family. It is a digitally

controlled power supply board that

consists of one independent DC/DC synchronous Buck

converter and one independent DC/DC Boost converter.

Each power stage includes a MOSFET controlled 5W

resistive load. The starter kit includes an On-Board

Debugger/Programmer.

Digital LED Lighting Development Kit (DM330014)

This LED lighting development kit

enables designers to quickly leverage

the capabilities and performance of the

dsPIC33 ‘GS’ DSCs to create a 100%

digitally controlled ballast function, while

including advanced features such as

dimming and color hue control. The dsPIC33 ‘GS’ devices

can support an entire system implementation for LED

lighting products, including power-conversion circuits, such

as AC-to-DC and DC-to-DC conversion, along with functions

such as Power Factor Correction (PFC).

Buck/Boost Converter PICtail Plus Card (AC164133)

A low-cost development platform for

dsPIC33F ‘GS’ devices, the buck/boost

converter PICtail Plus card has two buck

stage outputs and one boost stage

output. Various performance measures

like digital control loop performance of power conversion,

dynamic load performance, multi-phase buck and

synchronous buck converter operation, parallel operation

of two buck converters and multiple output control with a

single dsPIC device can be evaluated. This board can be

used with either the Explorer 16 board or the 16-bit 28-pin

starter board.