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This version (24 Jul 2014 14:26) was approved by ACozma.The Previously approved version (09 Jul 2014 14:52) is available.Diff

Dynamometer Drive System

Dynamometer Drive System

Features

Block Diagram

Key Parts

Power
ADuM5000 isoPower® integrated isolated dc-to-dc converter
ADP3335 HIGH ACCURACY ULTRALOW QUIESCENT CURRENT, 500 mA, ANYCAP® LOW DROPOUT
Isolation
ADUM3223 3 KV RMS ISOLATED PRECISION HALF-BRIDGE DRIVER, 4 A OUTPUT

User Guide

The system is equipped with an LCD which displays information about the state of the load such and together with the 3 push buttons placed below it can be used to display and configure different system parameters. The +/- buttons are used to navigate through the system's menu and to change different system parameters, while the Enter button is used to confirm parameter changes or to enter / exit the menu screens.

Menu diagram Menu description
Dyno menu Main menu is displayed at power up.


The measurement menu displays RMS phase currents and motor speed. The load can be adjusted by pressing the “+” or “-” buttons. In order to go back to the main menu press “Enter”.
Waveforms menu. Select ramp or step load.
In order to go back select “…” and press “Enter”

Step load menu. Select “Step” to start toggling the load.


Press “+” or “-” to toggle between the preset step values.
In order to go back press “Enter”

Set maximum duty cycle.
In order to go back press “Enter”

Set minimum duty cycle.
In order to go back press “Enter”

Ramp load menu. Press “+” or “-” to change ramp period.
In order to go back press “Enter”

Settings menu.
In order to go back select “…” and press “Enter”

Change duty cycle step.


About.


Analog Discovery™

In order interface the Dyno with the Analog Discovery™ USB Oscilloscope:

  • Slide switch S2 to EXT_CTRL position
  • Insert the Analog Discovery™ in P1 the connector(with the Analog Devices logo facing the user)

Dynamometer Drive System

Two software packages are available for interfacing with Analog Discovery™:

The signals available to the Analog Discovery™ are:

Dyno Signal Analog Discovery channel Description
I_A Scope Channel 1 Positive Phase A motor current (185mv/A)
I_B Scope Channel 2 Positive Phase B motor current (185mv/A)
PWM1 Digital Channel 0 Phase A PWM (3.3V levels)
PWM2 Digital Channel 2 Phase B PWM (3.3V levels)
PWM3 Digital Channel 2 Phase C PWM (3.3V levels)

The system needs a 5V 500mA power supply. The power connector is a 2.1 X 5.5MM jack with the center pin positive(+)

Downloads

AD-DYNO1-EBZ

Navigation - AD-FMCMOTCON1-EBZ

resources/eval/user-guides/ad-fmcmotcon1-ebz/hardware/dyno.txt · Last modified: 10 Jul 2014 14:07 by mihai.bancisor@analog.com

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