28 August 2004
HEBC+ Manual
Tri-M Engineering
Tel:
800.665.5600, 604.945.9565
1407 Kebet Way, Unit 100
Fax:
604.945.9566
Port Coquitlam, BC, V3C 6L3
E-mail:
Canada
Web
site:
www.tri-m.com
4
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