TIDA-00122

Automotive 200-VA High Frequency Inverter Design

TIDA-00122

Design files

Overview

This design presents a low-cost, small size, robust 200-VA DC to AC inverter based on TI’s MSP430 and UCD8220-digitally managed push-pull controller. It is targetted towards car inverters and small-segment inverters for commercial applications. In this design, UCD8220 is used for a boost stage to get 250-V DC from a 12-V battery. The MSP430 acts as a host controller and provides a 100-kHz clock to UCD8220 and drives for output DC-AC bridge. This inverter has a peak efficiency of 90% and has natural cooling and does not require a fan for cooling.

Features
  • Typical Efficiency for this inverter design: 86%
  • Ultra-low quiescent current of MSP430 minimizes power consumption
  • TrueDrive™ architecture of UCD8220 enhances current drive capability at low voltages
  • Quick power up from standby provided by TLV70433
  • TI’s low-Rdson and low-Qgs MOSFET, CSD18532 is selected to keep switching as well as conduction losses in control

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDR397.PDF (172 K)

Detailed schematic diagram for design layout and components

TIDR398.ZIP (23 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDC276.ZIP (270 K)

Design file that contains information on physical board layer of design PCB

Products

Includes TI products in the design and potential alternatives.

Linear & low-dropout (LDO) regulators

TLV704150-mA, 24-V, ultra-low-IQ, low-dropout voltage regulator

Data sheet document-pdfAcrobat PDF open-in-new HTML
MSP430 microcontrollers

MSP430G220316 MHz MCU with 2KB Flash, 256B SRAM, UART/SPI/I2C, timer

Data sheet document-pdfAcrobat PDF open-in-new HTML
N-channel MOSFETs

CSD17313Q230-V, N channel NexFET™ power MOSFET, single SON 2 mm x 2 mm, 32 mOhm

Data sheet document-pdfAcrobat PDF open-in-new HTML
N-channel MOSFETs

CSD17501Q5A30-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 2.9 mOhm

Data sheet document-pdfAcrobat PDF
PWM controllers

UCD8220Digitally assisted push pull PWM controller

Data sheet document-pdfAcrobat PDF open-in-new HTML
Shunt voltage references

TL431Adjustable precision shunt regulator

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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* User guide 200-VA HF Inverter Design Based on UCD8220 and MSP430G2330 for Automotive Apps Mar. 07, 2013

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