User manual

9
www.bkprecision.com
Performance (DC)
Power Supplies
Hot-swap Mode*
This mode is ideal for testing LED panels in
a mass production environment. Throughput
is significantly increased by eliminating the
need to turn the power supply on/off
between each test, while minimizing the
time interval of the surge current sufficiently
to protect the UUT. With the addition of a
handler interface, each UUT can be
“hot-swapped” to automatically connect to
the test station interface.
LED Mode
With LED mode active, inrush current will be eliminated or minimized to protect the UUT.
Low Current Mode*
This unique function enables the power supply to minimize the voltage rise time in a controlled
manner. This mode is used when operating at a low current (< 1 A) and quick transitions from a
high-to-low or low-to-high voltage are needed.
Test modes for LED and other special applications
To address the growing LED market, the 9170/9180 series design incorporates special LED test modes which allow for efficient and safe electrical
tests of LED panels. Powering LEDs with conventional power supplies will potentially cause permanent damage of the UUT or limit its lifespan due
to excessive inrush current at power up and the non linear characteristics of the LED’s I-V curve. These power supplies feature three distinct
operating modes suitable for LED testing in a manufacturing or R&D environment and other special applications requiring a controlled rise time at
power up without generating any inrush current.
Example LED test setup
Low current mode OFF
Low current mode ON
Current flow during power up with LED mode enabled
Voltage rise time with and without low current mode enabled
S
tandard USB interface
Intelligent
temperature-controlled
cooling fan, low noise
Rear panel output and
r
emote sense terminals
Inrush current
Output ON
20 ms 5 ms
Output ON
Modular interface card slots
Only buy what you need, when you need it. Pick and choose
from up to 4 different interface cards to install at time of
p
urchase or upgrade later. Interface card options include:
LAN and GPIB, Digital I/O and Analog Control, RS485, or
RS232. Installation is quick and easy and does not require
opening the instrument case (does not void warranty).
Rear Panel
* Hot-swap mode (hardware option) and low current mode for
high voltage models 9184 and 9185 only.
LED mode OFF
LED mode ON