TRI-M ENGINEERING HEBC+ User Manual

HEBC+ Manual

High Efficiency Battery Charging

Manufactured by

TRI-M ENGINEERING

Engineered Solutions for Embedded Applications

Technical Manual

P/N: HEBC+MAN-V2

Revision: 28 August 2004

TRI-M ENGINEERING

1407 Kebet Way, Unit 100

Port Coquitlam, BC V3C 6L3

Canada

http://www.Tri-M.com

Tel [phone]

North America 800.665.5600

Fax [phone]

28 August 2004 HEBC+ Manual

PREFACE

This manual is for integrators of applications of embedded systems. It contains information on
hardware requirements and interconnection to other embedded electronics.

DISCLAIMER

Tri-M Engineering makes no representations or warranties with respect to the contents of this
manual, and specifically disclaims any implied warranties of merchantability or fitness for any
particular purpose. Tri-M Engineering shall under no circumstances be liable for incidental or
consequential damages or related expenses resulting from the use of this product, even if it has been
notified of the possibility of such damages. Tri-M Engineering reserves the right to revise this
publication from time to time without obligation to notify any person of such revisions. If errors are
found, please contact Tri-M Engineering at the address listed on the title page of this document.

COPYRIGHT © 2000-10-01 TRI-M ENGINEERING

No part of this document may be reproduced, transmitted, transcribed, stored in a retrieval system, or
translated into any language or computer language, in any form or by any means, electronic,
mechanical, magnetic, optical, chemical, manual, or otherwise, without the express written permission
of Tri-M Engineering.

Tri-M Engineering Tel: [phone]

1407 Kebet Way, Unit 100 Fax: [phone]

Port Coquitlam, BC, V3C 6L3 E-mail: [e-mail]
Canada Web site: www.tri-m.com

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28 August 2004 HEBC+ Manual

Table of Contents

Table of Contents..................................................................................................................................3

CHAPTER 1 - INTRODUCTION...........................................................................................................4

1.1 General Description................................................................................................................4

1.2 Features .................................................................................................................................4

CHAPTER 2 - CONFIGURATION AND INSTALLATION......................................................................5

2.1 Introduction.............................................................................................................................5

2.2 Main Input Power Connector..................................................................................................5

2.3 Battery Connector ...................................................................................................................5

2.4 AUX Connector .......................................................................................................................5

Tri-M Engineering Tel: [phone]

1407 Kebet Way, Unit 100 Fax: [phone]

Port Coquitlam, BC, V3C 6L3 E-mail: [e-mail]
Canada Web site: www.tri-m.com

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28 August 2004 HEBC+ Manual

CHAPTER 1 - INTRODUCTION

1.1 General Description

The HEBC+ is a high efficiency, high performance battery charger that charges batteries in the range
of 10 to 35 volts. The battery charger output is controlled by a constant off-time current-mode
architecture regulator, which provides excellent line and load transient response. The HEBC+
includes a flash based microcontroller that supplies advanced power management, and smart battery
charging. It has a wide input range of 10-40V and is ideal for unregulated input applications. The
HEBC+ using a “buck” switching regulator design, therefore the input voltage must be greater than
the required charging voltage.

The HEBC is a state-of-the-art mosfet based design that provides outstanding line and load
regulation with efficiencies up to 95 percent.

The HEBC provides up to four stages of battery charging and can charge Lead-Acid, NiCd and NiMH
batteries and is also SMBus level 3 compatible. Charge currents are up to 4A and battery charging
voltages range from 10 to 35V.

1.2 Features

• DC to DC switching converter design for high efficiency.

• “Load Dump” transient suppression on input power supply.

• Operates from 10VDC to 40VDC input.

• PC/104 size and mounting holes.

• Temperature range -40 to 85C.

Figure 1

Tri-M Engineering Tel: [phone]

1407 Kebet Way, Unit 100 Fax: [phone]

Port Coquitlam, BC, V3C 6L3 E-mail: [e-mail]
Canada Web site: www.tri-m.com

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28 August 2004 HEBC+ Manual

CHAPTER 2 - CONFIGURATION AND INSTALLATION

2.1 Introduction

This chapter describes the configuration and installation of the HEBC+ power supply. Figure 2 shows
the HEBC+ connectors.

Figure 2

2.2 Main Input Power Connector

Input power is connected to the HEBC+ by a Molex plug and pin connector CN2. The power supply
accepts DC input voltages in the range of 10VDC to 40VDC. Unregulated vehicle power is connected
as follows:

- Terminal 1:Common (0VDC)

- Terminal 2: Hot ”polarity”

2.3 Battery Connector

Batteries are connected to the HEBC+ by a Molex plug connector, CN1. The HEBC+ accepts DC
battery voltages in the range 10V to 35VDC through the Battery Power Connector.

- CN1-1: Battery Positive

- CN1-2: Common

- CN1-3: TH, Thermistor safety input

- CN1-4: SDA, I2C/SMBus data input/output signal

- CN1-5: SCL, I2C/SMBus clock input/output signal

2.4 AUX Connector

Connecting to the HEBC+ through the AUX connector, CN4 and CN5, does the remote setup and
monitoring of the HEBC+.

- CN4-1: COM

- CN4-2: RS232 RX

- CN4-3: RS232 TX

- CN5-1: LED-CH

- CN5-2: COM

- CN5-3: LED-HB

Tri-M Engineering Tel: [phone]

1407 Kebet Way, Unit 100 Fax: [phone]

Port Coquitlam, BC, V3C 6L3 E-mail: [e-mail]
Canada Web site: www.tri-m.com

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