Maxim Integrated 78M6610+PSU User Manual
78M6610+PSU Evaluation Kit
User Manual
April 2013
Rev 2
Maxim Integrate d cannot a ssume responsibi lity f or use of a ny circui try oth er than circuitry entirel y embodi ed in a Maxim I ntegrated p roduct. No circui t
patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time.
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© 2013 Maxim Integrated Products, Inc. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
78M6610+PSU Evaluation Kit User Manual
Table of Contents
1 Introduction ......................................................................................................................................... 4
1.1 Ordering Information .................................................................................................................. 4
1.2 Package Contents...................................................................................................................... 4
1.3 System Requirements ............................................................................................................... 4
1.4 Safety and ESD Notes ............................................................................................................... 6
1.5 Testing the 78M6610+PSU Boards Prior to Shipping ............................................................... 6
2 Installation ........................................................................................................................................... 7
2.1 USB Driver Installation ............................................................................................................... 7
2.2 Confirm COM Port Mapping ...................................................................................................... 7
2.2.1 FTDI COM Port Trouble Shooting .................................................................................... 8
2.3 Basic Connection Setup ............................................................................................................ 9
2.4 Jumper and Switch Settings .................................................................................................... 11
3 Graphical User Interface (GUI) ......................................................................................................... 13
3.1 GUI Initialization ....................................................................................................................... 13
4 Schematics, Bill of Materials, and PCB Layouts ............................................................................ 14
4.1 78M6610+PSU 16-Pin Evaluation Board Schematics ............................................................. 14
4.2 78M6610+PSU 16-Pin Evaluation Board Bill of Materials ....................................................... 15
4.3 78M6610+PSU 16-Pin Evaluation Board PCB Layouts .......................................................... 16
4.4 78M6610+PSU 24-Pin Evaluation Board Schematics ............................................................. 18
4.5 78M6610+PSU 24-Pin Evaluation Board Bill of Materials ....................................................... 19
4.6 Shu nt Ada ptor Board Sche matics ............................................................................................ 22
4.7 Shunt Adaptor Board Bill of Materials ...................................................................................... 23
4.8 Shu nt Ada ptor Board PCB La youts ......................................................................................... 24
5 Included Documentation .................................................................................................................. 26
6 Contact Information .......................................................................................................................... 26
Revision History ........................................................................................................................................ 26
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78M6610+PSU Evaluation Kit User Manual
Figures
Figure 1: 78M6610+PSU Evaluation Kit Application Diagram .............................................................................. 5
Figure 2: 78M6610+PSU Evaluation Board .......................................................................................................... 9
Figure 3: 78M6610+PSU Evaluation Kit Connections .......................................................................................... 9
Figure 4: Shunt Adaptor Board Connect ions ...................................................................................................... 10
Figure 5: 78M6610+PSU 16-Pin Evaluation Board Electrical Schematic ........................................................... 14
Figure 6: 78M6610+PSU 16-Pin Evaluation Board PCB Top View .................................................................... 16
Figure 7: 78M6610+PSU 16-Pin Evaluation Board PCB Bottom View ............................................................... 17
Figure 8: 78M6610+PSU 24-Pin Evaluation Board Electrical Schematic ........................................................... 18
Figure 9: 78M6610+PSU 24-Pin Evaluation Board PCB Top View .................................................................... 20
Figure 10: 78M6610+PSU 24-P in Eval uat ion Bo ard P CB Bott om View ............................................................. 21
Figure 11: Shunt Adaptor Board Electr ic al Schematic ........................................................................................ 22
Figure 12: Shunt Adaptor Board PCB Top Vie w ................................................................................................. 24
Figure 13: Shunt Adaptor Board PCB Bottom View ............................................................................................ 25
Tables
Table 1: 16-Pin Evaluation Board Connector Descriptions ................................................................................. 11
Table 2: 24-Pin Evaluation Board Connector Descriptions ................................................................................. 11
Table 3: Shunt Adaptor Board Connector Descriptions ...................................................................................... 12
Table 4: 78M6610+PSU 16-Pin Evaluation Board Bill of Materials .................................................................... 15
Table 5: 78M6610+PSU 24-Pin Evaluation Boar d Bill of Materials .................................................................... 19
Table 6: Shunt Adaptor Board Bill of Materials ................................................................................................... 23
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78M6610+PSU Evaluation Kit User Manual
PART
TYPE
78M6610+PSU/EV#1
Evaluation Kit
Windows and Windows XP are registered trademarks of Microsoft Corp.
1 Introduction
The 78M6610+PSU Evaluation Kit is a design example of a modular daughter card for integration into AC-DC
power-supply units. The kit demonstrates the capabilities and performance of 78M6610+PSU energy
measurement device in both the 16-pin and 24-pin pack ages .
The kit is connected to a PC through a USB cable that provides both power and
data communication to the board. A Windows®-based graphical user interface
(GUI) communicates with the device over the serial UART interface for
simplified access to measurement data and controls.
1.1 Ordering Information
#Denotes a RoHS-compliant device that may include lead that is
exempt under the RoHS requirements.
1.2 Package Contents
The following are inclu ded with the 78M6610+PSU Evaluation Kit:
• 78M6610+PSU Evalu ati on Boards (16/24-pin)
• Shunt Adaptor Board
• USB Cable Assembly USB A-B 28/24 1.8M (Tyco/Amp 1487588-3)
• CD with Documentation, GUI Application, and USB Drivers
1.3 System Requirements
In addition to an AC source and load for measuring, the 78M6610+PSU Evaluation Kit requires use of a PC
with the following features:
• 1GHz processor and 1GB RAM
• Minimum 1024 x 768 video display resolution
• Available USB port
®
• Microsoft Windows 7 or Windows XP
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78M6610+PSU Evaluation Kit User Manual
Shunt
Adaptor
Board
USB
78
M6610
+
PSU Board
78M
6610
+
PSU
Current
Shunt
USB
Controller
3
V3
Reg
5V
Load Under Test
Host PC
120
/
240V
Single Phase
AC Source
Voltage
Divider
DC/
DC
Isolation
J3
J4J2
J1
Neutral
Line
Earth Gnd
J11
Figure 1: 78M6610+PSU Evaluation Kit Application Diagram
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78M6610+PSU Evaluation Kit User Manual
1.4 Safety and ESD Notes
EXERCISE CAUTION WHEN LIVE AC VOLTAGES ARE PRESENT!
Standard ESD precautions must be taken when ha n d ling electronic equipment. The
78M6610+PSU contains ESD protected interfaces.
Do not connect test equipment or external development boards directly to the
78M6610+PSU hardware. Damage to the 78M6610+PSU and external equipment will
occur due to the 78M6610+PSU’s “high side” reference topology. The
78M6610+PSU’s V3P3 supply rail (i.e., “high side”) is connected directly to Neutral
(Earth Ground) creating a ground reference disparity with any properly grounded
external equipment.
The board components and firmware settings are designed to operate with the following nominal AC electrical
ranges:
Voltage Current Line Frequency
10–240 VAC 10mA–20A 46–64Hz
1.5 Testing the 78M6610+PSU Boards Prior to Shipping
Before every 78M6610+PSU Kit is shipped, the following procedures have been performed at the factory:
• Full Calibration – Precise energy source equipment is used to calibrate the current, voltage, and ambient
temperature for both the 16-pin and 24-pin daughter cards
• Accuracy Test – A “bench” level test ensures the energy accuracy is within ±0.5%.
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78M6610+PSU Evaluation Kit User Manual
2 Installation
2.1 USB Driver Installation
This Evaluation Kit includes an is ola ted US B interface for serial communications with a PC. The FTDI USB
controller IC FT232R performs the USB functions. The FTDI Windows driver presents a virtual COM port for
enabling serial communications. The FTDI Windows driver is a certified driver for Windows XP and Windows 7.
Upon attaching the 78M6610+PSU Eva luati on Kit to the PC, the Found New Hardware Wizard should
automatically launch and ins tall the appr opria te dr iver files . If your PC does not find the FTDI driver files on its
local hard disk drive, locate and reference the FTDI USB Driver and Utilities subdirectory on the CD. The
FT232R controller is powered from the USB cable and is active even when no AC power is applied to the
78M6610+PSU Evaluation Kit.
Note: If an older FTDI dri ver has been previously installed, it is recommended to remove the o lder version
before installing this ne wer FT DI driver. Exec ut e th e ftdiClean.exe utility from the FT DI U SB D ri ver and
Utilities subdirectory.
For FTDI driver support on other operating systems, refer to FTDI’s website at www.ftdichip.com.
2.2 Confirm COM Port Mapping
• Launch the Control Panel and click on the System icon.
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78M6610+PSU Evaluation Kit User Manual
COM Port:
• The System Properties screen appear s. Click on the Hardware tab. Click on Device Manager. Under
Ports (COM & LPT), look for the USB Serial Port assignment.
• Take note of the COM port assignment for the USB Serial Port.
2.2.1 FTDI COM Port Trouble Shooting
If the FTDI device driver did not install properly, there would be no assigned COM port number for the FTDI
controller. Repeat the USB Driver Installation, see Section
Microsoft Windows may associate a Ball Point device to the FTDI USB controller. When this occurs a FTDI
device COM port assignment is available via HyperTerminal but there is no communications data. Verify if a
Ball Point device has been added to the “Human Interface Devices” via the Device Manager. See
for access to the Device Manager. If a Ball Point device exists, delete it and unplug and replug the Evaluation
Kit’s USB cable.
2.1.
Section 2.2
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