Microchip Technology dsPICDEM MCLV-2 Manual de usuario descargar pdf (Pagina 25)

16-bit Embedded Control Solutions

Platinum Rated 720W AC/DC Reference Design

This reference design demonstrates

the flexibility and power of SMPS 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.

Buck/Boost Converter PICtail Plus Card (AC164133)

A low-cost development platform

for dsPIC33FGS SMPS devices, the

buck/boost converter PICtail Plus

card has two buck stage outputs and

one boost stage output. The buck/

boost converter operates from an input supply of +9V

to + 15V DC. 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 for dsPIC33FGS SMPS solutions.

This board can be used with either the Explorer 16 board

or the 16-bit 28-pin starter board and the dsPIC33F SMPS

and digital power conversion devices.

Quarter Brick DC/DC Converter Reference Design

This reference design provides an

easy method to evaluate the power,

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 from

Microchip that provides the full digital control of the power

conversion and 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 DSCs from Microchip that provides the

full digital control of the power conversion and system

management functions.

Development Tools for Digital Power Applications

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 interleaved

power factor correction methods provide many benefits

over older PFC techniques.

Digital Pure Sine Wave Uninterruptible Power Supply

(UPS) Reference Design

This reference design is based on

the dsPIC33F “GS” series of digital

power DSCs. 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.

Digital LED Lighting Development Kit

This LED lighting development kit

enables designers to quickly leverage

the capabilities and performance of the

dsPIC33 ‘GS’ DSCs and this reference

design 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), which are necessary for a complete

product and lower overall system cost.

Grid Connected Solar Micro Inverter

Reference Design

This reference design demonstrates

the flexibility and power of SMPS DSCs

in grid connected power conversion

systems. This reference design works

with any PV panel of maximum of 250W

having open circuit voltage between 20V to 52V DC. This

reference design will ensure maximum power tracking for

PV panel voltage between 25V to 45V DC. Two versions of

this reference design are available to support 120V and

230V grid.

Additional information for all reference designs is available

at www.microchip.com/power.

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