Atec 63600 User Manual

Programmable DC Electronic Load

MODEL 63600 SERIES

Key Features :

PROGRAMMABLE DC ELECTRONIC LOAD

MODEL 63600 SERIES

Chroma's

designed for testing multi-output AC/DC power

supplies, DC/DC conver ters, chargers, batteries,

se r ve r po we r su pplie s, and power electron ic

comp onent s. The y are excel lent for researc h,

de ve lo pm ent, pro d uc ti on, a nd in co mi ng

inspection applications.

Th e

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tec hn ology to simulate non-linear loads using

a unique CZ operation mode allowing realistic

loading behavior.

The

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very low voltage (0.4V typical). This unique feature

guaran te es the best loadin g per forma nc e for

modern Point-of-Load conditions and fuel cells.

The

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dynamic loading applications, with programmable

load levels, slew rates, duration, and conducting

voltag e. The

fun ct ion to meet the test require ments of ATX

se ri es DC elec tr on ic loads are

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's st ate of the art desig n us es DSP

series can draw its rated current under

series can simulate a wide range of

also has a dynamic sw eep

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power supplies. The instrument allows up to

sets of system operating stat us which can be

stored in the EEPROM and recalled instantly for

automated testing application.

Real time measurement of voltage and current

are integrated into each

a 16-bit measurement circuit with three current

ra nge s. The user can per for m on lin e volt age

measurements and adjustments or simulate short

circuit tests using the simple keypad on the front

panel.

With the VFD display and rotary knob, the

loads offer versatile front panel operation. Users

are able to control the

Ethernet, USB, or GPIB interface.

Also inc lu ded in the

routines and full protections against OP, OC, OT

and alarm indicating OV, rever se polarity. This

ensures the quality and reliability of the

provides protection to units under test.

load module using

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family remotely via

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ar e self-diagnosti c

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100

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and

Max. power :

■

Voltage range : up to

■

5 module mainframe Max.

■

modules up to

Up to 10 channels in one mainframe, fit for

■

testing multiple output SMPS



0.4V @ 80A (Typical) low voltage operating

■

characteristics

Flexible CC, CR, CV and CP operation modes

■

CZ mode for turn on cap

■

simulation

Parallel mode for high current and

■

power application up to 2kW

Multi channel synchronous control

■

Auto frequency sweep up to 50kHz

■

Real time power supply load transient

■

response simulation and Vpk+/-

measurement

User defined waveform

■

Max. Power Point Tracking

■

User programmable

■

panel input status for user-friendly operation

Precision voltage and current measurement

■

Precision high speed digitizing measurement/

■

data capture

Voltage, current and P

■

for OCP/OLP testing

Timing measurement for batteries

■

Short circuit simulation

■

Self-test at power-on

■

Full protection : OC, OP, OT protection and

■

OV alarm

Ethernet, USB and GPIB interfaces

■

100

400

(Dual),

600

W/ea

acitive load

sequential front

100

max

W &

300

W, load

2000

measurement

400

Ethernet

GPIB

USB

APPLICATIONS

Power Supply

Adapter

Server

Power Supply

Mother Board

Fuel Cell

Functionality

DUT

Electric Vehicle Components

Battery Charger Generator Wiper current simulation DC to DC converter Fuse Relay Connector Body control module (BCM) A/C controller

Storage power

Battery PV module Fuel cell

3C Products

Adaptor Power supply Server power Printer power Charger VRM/POL UPS Telecom power DC to DC converter

Battery

Delay

Master

Slave

Solar Cell Module

OCP

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Low Voltage Operating Characteristics

0.4V@80A (typical)

High Measurement Accuracy Constant Impedance Mode (CZ mode)

Delay

Dynamic Loading and Control

Up to 40 channels

Peak Current Test

(Programmable repetitive peak cycle)

Master

Master / Slave Parallel Control

Slave

Sine Wave Dynamic Function

Digitizing Fu

nction Over Current Protection Test

Timing Function

Maximum Power Point Tracking Function

Auto Sweep for Dynamic Loading Test

OCP

Program Sequences User Defined Waveform Function

VERSATILE SYSTEM CONFIGURATION

Chroma's

among multiple load modules. All load modules are configured to work independently, though testing can be carried out simultaneously at multiple

outputs via remote control to simulate real life application.

Series Programmable Electronic Load integrates micro-processing capability into each load module to optimize the speed and control

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MODULE LOAD DESIGN

The Chroma

load modules for easy system configuration. The model

load modules to offer up to 10

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panel inputs. The maximum power for a single mainframe is 2kW when five

load modules are paralleled. This is suitable for testing multiple output switch mode

power supplies, and many other types of power products. Using the GO/NG output port,

production snapshots are made available to show the immediate pass/fail judgment of

UUT. All modules on the mainframe share a common GPIB address to synchronize and

speed up the control of the load modules and read back the operating data.

electronic load mainframe accepts the user-installable

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63600-5

W load input channels with standard front-

100

series

63600

mainframe holds five

63640-80-80

APPLICATION OF SPECIFIC LOAD SIMULATION

The

example, the CV is designed to simulate batteries for charger testing.

series load modules operate in constant volta

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ge, current, resistance, power, or impedance to satisfy a wide range of test requirements. For

Constant Current Constant Resistance Constant Voltage Constant Power

CC Applications:

1. Load/Cross regulation

test for CV power supply

2. Battery discharge time

test and life cycle test

3. Fuel cell testing

4. Loading pattern simulation

for automotive wiper

CR Applications:

1. Test current limit point and

slew rate for power supply

2. Soft start test for telecom power

3. Loading simulation for

automotive temperature

controller

CV Applications:

1. Charger test for mobile phone

2. Current limit test for fold back

power supply

3. Fuel cell test.

4. Current source test

CP Applications:

1. CP power test

2. Battery capacity test and

capacity life cycle test

3. Pout vs Eff% curve test

PRECISE MEASUREMENTS

The

and 0.1%+0.1%F.S. accuracy for voltage, current and power measurement respectively. Precise measurements like these are ideal for testing power

efficiency and other critical parameters o

Besides, The

judge the test result for Pass or Fail and shows the maximum power (Pmax) on the display after completed the OCP/OLP test.

series provides three operating current ranges and a built-in 16-bit, precision A/D converter, achieving 0.

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f the UUT's. The precise measurement of

series can measure OCP/OLP trip voltage and current by setting the step, step current, dwell time and so on. Then

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series also meets the requirements of ENERGY STAR® and 80 Plus.

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025%+0.01

%F.S., 0.05%+0.05%F.S.

series will

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Two high-speed A/

without distortion

D are built in the

series to measure the voltage and current at the same time and calculate the true power value for displaying

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CONSTANT IMPEDANCE MODE CZ MODE

Repeat times

Load 1

Load 2

Fall rate

Rise rate

Th e un i qu e CZ mod e des ig ne d in

se ries can improve the loa ding

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behavior of CC & CP mode and makes the

simulated loading current more realistic.

PROGRAM SEQUENCES

The

be operated independently or synchronized so that all modules start operating at the same time while running independent programs. Below are some

examples of the most popular program sequences available.

series offers

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Simulations of all kinds of real current waveforms for battery

discharge testing and other applications are possible. (Notebook,

Electric car and Electric bike) (Single output channel for UUT)

programmable loading sequences that enable the user to simulate various real world conditions. In addition, each module can

100

Current

Delay

Peak power cycle test for printer power

(Three output channel for UUT)

Time

DYNAMIC LOADING AND CONTROL

Modern electronic devices operate at very high speed and demand

rapid transient response characteristics. To address these applications

the

simulation and control capability never before achieved. The right

figure shows the programmable parameters which can be set within

the

offers high speed, programmable dynamic loading, sweep

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loads: Waveforms can be s

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ingle shot or set to repeat.

The dynamic mode provides a uni que simul ation

ca pab ili ty allow ing use rs to se t th e nu mbe r of

times each cycle repeats from 1~65,

excellent for determining the peak current which can

be sustained by converters.

The

peaks (see Figure 1). Measurement of the Vpeak (+/-) can be achieved by this function with a sampling rate of

mode can simulate different loading conditions for most test requiremen

waveform distortion during dynamic loading.

also offers a unique dynamic frequency sweep with variable frequencies up to 50kHz. This capability is ideal for determining worst case voltage

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Figure 1 : Sweep Waveform

535

. Feature is

DYNA

DYNA Page

ts. Dedicated remote load sensors and control circuits guarantee minimum

1. Dynamic + Repeat Times

2. Frequency Sweep

kHz (Figure 2). The dynamic loading

500

pk-

Figure 2 : Measurement of Vpeak

pk+

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