Programmable DC Electronic Loads

8600 Series

4

www.bkprecision.com

Flexible operation

List mode lets you generate more complex

sequences of input changes with several different

levels. Up to 7 groups of list files can be saved.

Each list can contain up to 84 steps with a

minimum width time of 20 µs per step.

List mode

Vd = Forward voltage of the LED

Rd = LED's operating resistance

Vo = Operating voltage across the LED

Io = Operating current across the LED

Use the load's unique CR-LED operating mode

to test LED drivers. This function allows users to

configure the LED's operating resistance and for-

ward voltage along with the voltage range (same

as CR operation) to simulate the loading behavior

of typical LEDs.

CR-LED mode

Figure - LED I-V Curve

R d

Io

I

Vd

Vo

V

Automatic test mode

The 8600 Series can execute multiple test

sequences in automatic test mode. Up to 100

different sequences can be linked to run steps of

various operating modes and loading conditions.

Each sequence can also be programmed with

upper and lower limit Pass/Fall criteria. When

applied in production testing, you can easily

judge whether the test parameters of your devices

are within the specification limits and adjust your

process according to the Pass/Fail verdict.

Transient operation

Transient operation enables the module to peri-

odically switch between two load levels. A power

supply's regulation and transient characteristic

can be evaluated by monitoring the supply's out-

put voltage under varying combinations of load

levels, frequency, duty cycle, and slew rate. Tran-

sient operation can simulate these conditions.

Low voltage operation

The 8600 Series can operate at low voltages for applications such as fuel cell and solar cell testing.

Typical minimum operating voltage at full scale current

8600

8601

8602

8610

8612

8614

8616

8620

8622

8624

8625

1.1 V

1.1 V

4.5 V

1.2 V

3.6 V

1.5 V

3.6 V

2 V

3 V

1.8 V

1.8 V

pass

pass

pass

fail

CC 1 A

CW 0.5 W

CV 3 V

CR 2 Ω

1 s

0.5 s

1.5 s

2.5 s

Slew Rate

A level

B level

t

A

t

A

Steps

Trigger

0

1 2 3 4

5 6

7 8

V

I

240

120

90

60

30

0

480

600

720

1

2

3

4

5

≈

≈

100

Voltage (V)

8600

8612

8602

8601

8616

8622

8610

8614

8620

8624

8625