HESC-SER

Overview

The HESC-SER is a high efficiency, high performance DC to DC 60 watt converter that supplies +5V, -5V, +12V & -12V outputs. The HESC-SER also includes a flash based microcontroller that supplies advanced power management, smart battery charger and an RS232 serial port. The HESC-SER is designed for low noise embedded computer systems, has a wide input range of 6-40V(>6:1) and is ideal for battery or unregulated input applications. The HESC-SER is specifically designed for vehicular applications and has heavy-duty transient suppressors (5000W) that clamp the input voltage to safe levels, while maintaining normal power supply operation.

The HESC-SER is a state-of-the-art mosfet based design that provides outstanding line and load regulation with efficiencies up to 95 percent. Organic Semiconductor Capacitors provide filtering that reduces ripple noises below 20mV. The low noise design makes the HESC-SER ideal for use aboard aircraft or military applications or wherever EMI or RFI must be minimized. The +5VDC and +12VDC outputs are controlled by a constant off-time current-mode architecture regulator that provides excellent line and load transient response.

The HESC-SER 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 from 9.5 to 35V.

The HESC-SER has advanced power management functions that allows timed on/off control of the HESC-SER, notification of changes to main power and changes in the battery status. For example, the HESC-SER can be programmed to power off the outputs in 60 seconds, then turn on again 12 hours later.

The HESC-SER size is 3.55 x 3.775 inches, which is the same size as the PC/104 standard, and has the same mounting holes pattern as the PC/104 standard. However, the HESC-SER does not supply the PC/104 bus connectors. (For a PC/104 fully compliant power supply, please see the Tri-M Engineering HESC104.) All generated voltages are provided to a Phoenix header. A removable plug allows the HESC-SER to be easily installed. The RS232 serial port is provided on a 2x5 row pin header.

The HESC-SER can be configured to meet almost any power supply and battery charging need for embedded applications, whether that be a simple +5V application, or providing power for back lighted LCD panels, or a full UPS (un-interruptible power supply configuration).