9174B - B&K PRECISION CORPORATION

Programmable Dual-Range DC Power Supplies

9170B & 9180B Series

Data sheet

www.bkprecision.com

The 9170B/9180B series programmable DC

power supplies offer industry leading

performance, designed to meet the most

demanding applications in R&D, design

verification, and production test. All nine models

deliver clean, stable and precise output power

due to their exceptionally low ripple and noise,

low temperature coefficient, excellent regulation,

and fast transient response time characteristics.

These power supplies are well suited for both

bench use and ATE applications. For bench use,

these power supplies offer an intuitive user

interface with a full numerical keypad for

convenient data entry. R&D and design engineers

will appreciate front panel output and remote

sense terminals (available on select models). Free

application software is provided for remote

control without the need for any computer

programming. USB and optional GPIB/LAN

interfaces combined with a fast transient response

and command processing time, make this series

ideal for ATE applications.

Additionally, this series offers unique features

not typically found in other power sources on

the market, such as versatile LED test modes,

modular interface card slots, automatic range

Technical data subject to change

Features & Benefits

■Single and dual output models with up to

210W output power

■Dual range output with automatic range

selection*

■Programmable voltage and current slew rates

■Front and rear panel output terminals for

convenient wiring

■Rear panel remote sense terminal (additional

front panel remote sense terminal on select

single channel models*)

■List mode for executing up to 10 stored test

sequences with a maximum of 150 steps in

total

■Store and recall up to 10 power settings

■SCPI compliant USB standard interface,

RS232, GPIB & LAN, RS485 optional

(Installation through modular interface slots)

■Exceptionally fast command processing time,

less than 10 ms, greatly reduces overall test

time

■Remote analog programming interface (option)

■Unique LED test modes for minimizing inrush

current

■Application software for remote control

■Overvoltage (OVP) and overcurrent (OCP)

protection, including key-lock function

■Convenient voltage and current calibration via

front panel

■LabVIEWTM drivers available for download

Outstanding performance combined with unique features

* Except for high voltage models 9184B and 9185B.

Output Rating No. of

Outputs Model

0-10 V, 0-10 A / 0-20 V, 0-5 A 1 9171B

0-35 V, 0-3 A / 0-70 V, 0-1.5 A 1 9172B

0-10 V, 0-10 A / 0-20 V, 0-5 A 2 9173B

0-35 V, 0-3 A / 0-70 V, 0-1.5 A 2 9174B

0-18 V, 0-8 A / 0-36 V, 0-4 A 1 9181B

0-10 V, 0-20 A / 0-20 V, 0-10 A 1 9182B

0-35 V, 0-6 A / 0-70 V, 0-3 A 1 9183B

0-100 V, 0-2 A / 0-200 V, 0-1 A 1 9184B

0-400 V, 0-0.5 A / 0-600 V, 0-0.35 A 1 9185B

selection, and an optional 8-bit bidirectional

digital I/O interface.

To protect your DUT (device under test), the

9170B/9180B series provides safety options such

as OVP, OCP, and a key-lock feature to prevent

accidental change of parameters that might

damage your DUT. Built for reliability, the

supplies are also backed by a 3 year warranty.

www.bkprecision.com

Programmable Dual-Range DC Power Supplies

9170B & 9180B series

Bright display showing

both measured output

value and set value

Vertical and horizantal cursors

make studying UUT response

to small voltage or current

changes easy

Direct-entry numeric keypad

to set precise voltage and

current values

Front panel remote sense terminal

(all single channel models except 9184B and 9185B)

High voltage models come with special binding posts

engineered for maximum safety

Individual output on/off buttons

for each output channel

Dedicated indicators for

important safety functions

Front panel

Rear panel

Standard

USB interface

Intelligent temperature-controlled,

low noise cooling fan

Rear panel output

and remote sense

terminals

Modular interface card slots

Only buy what you need, when you need it. Pick and

choose from up to 4 different types of interface cards

to install at time of purchase 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).

Dual channel models High voltage models

www.bkprecision.com

Programmable Dual-Range DC Power Supplies

9170B & 9180B series

External control and programming

Versatile connectivity

These power supplies offer SCPI IEEE488.2 compatible standard USB, optional

GPIB and LAN interfaces, and an optional 8-bit digital I/O and analog control

card to facilitate test system development and integration.

Application software

Create test sequences for execution in list mode via the GPIB or USB interface

using the included PC software.

■Create, save, and load program lists

■View output characteristic curves and export data to a file

■Pass/Fail test monitors maximum and minimum voltage and current values

over a specified period of time

Test sequence execution in list mode

The list mode feature allows users to download a list of commands to the

power supply’s internal memory and execute them. A total of 150 steps can

be allocated to one of 10 internal memory locations. The test sequence can be

programmed from the front panel, remotely through the included application

software, or via the USB, GPIB, or LAN interfaces using SCPI commands. Each

step’s voltage, current, and duration parameters can be set, with sequences

configured for single or repeated execution.

Telnet interface(2)

Power supplies can be controlled with SCPI commands via a Telnet connection

over the Ethernet interface. Any computer with a Telnet client can be used to

control the power supply.

Web server interface(2)

The 9170B/9180B series power supplies with the GPIB/LAN interface installed

provide a built-in Web server that allows users to configure, control, or monitor

the basic settings of the power supply from a remote computer using a Java-

enabled Web browser. Connect to the user-defined IP address to view the web

control page. SCPI commands can also be sent through the Web server interface.

Interface for controlling voltage, current, and output state

Control settings page for configuration of protection

and password settings for the system

External analog programming interface(1)

The power supplies’ output voltage and current can be controlled by either

external analog voltage or resistance. Use a 0-5 V or 0-10 V external DC

voltage source, or 0-5 kΩvariable resistor to control the output from zero to

full scale.

Multi-unit control(3)

In multi-unit control mode, up to 31 units can be daisy chained via the RS485

interface for synchronization purposes and controlled from one master unit via

the USB, GPIB, or LAN interface.

(1) Requires card option DR1DIO or DR2DIO

(2) Requires card option DRGL

(3) Requires card option DRRS485

www.bkprecision.com

Programmable Dual-Range DC Power Supplies

9170B & 9180B series

* Low current mode for high voltage models 9184B and 9185B only.

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.

To address the growing LED market, the 9170B/9180B series design incorporates special LED test modes for efficient and safe electrical tests of LED panels. Power-

ing LEDs with conventional power supplies will potentially cause permanent damage to the UUT or limit its lifespan. This damage is caused by the excessive inrush

current at power up and the non-linear characteristics of the LED’s I-V curve. These power supplies feature two 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

9170B/9180B Series Operating Range

Voltage rise time with and without low current mode enabled

Inrush current

Output ON

Test modes for LED and other special applications

LED mode OFF

LED mode ON

The 9170B/9180B series provide a unique dual

range feature that offers the best of both worlds

by supplying two different ranges. Users can

select between high and low range operation for

either more voltage or more current depending

on your application, avoiding the higher cost of

buying more power than necessary.

Two power supplies in one

www.bkprecision.com

Programmable Dual-Range DC Power Supplies

9170B & 9180B series

Specifications 9171B 9172B 9173B 9174B 9181B 9182B 9183B 9184B 9185B

Output Rating

Low Range 0-10 V,

0-10 A

0-35 V,

0-3 A

0-10 V,

0-10 A

0-35 V,

0-3 A

0-18 V,

0-8 A

0-10 V,

0-20 A

0-35 V,

0-6 A

0-100 V,

0-2 A

0-400 V,

0-0.5 A

High Range 0-20 V,

0-5 A

0-70 V,

0-1.5 A

0-20 V,

0-5 A

0-70 V,

0-1.5 A

0-36 V,

0-4 A

0-20 V,

0-10 A

0-70 V,

0-3 A

0-200 V,

0-1 A

0-600 V,

0-0.35 A

Number of Channels 1 1 2 2 1 1 1 1 1

Max Output Power 100 W 105 W 200 W 210 W 144 W 200 W 210 W 200 W 210 W

Line Regulation Voltage ≤ 0.01 %+1 mV

Current ≤ 0.01 %+250 uA

Load Regulation1Voltage ≤ 0.01 %+1 mV

Current ≤ 0.01 %+250 uA

Ripple and Noise

(20 Hz – 20 MHz)

Normal Mode

Voltage

≤ 0.35 mVrms

/ ≤ 3 mVpp

≤ 0.5 mVrms /

≤ 5 mVpp

≤ 0.35 mVrms

/ ≤ 3 mVpp

≤ 0.5 mVrms /

≤ 5 mVpp

≤ 0.35 mVrms /

≤ 3 mVpp

≤ 0.5 mVrms

/≤5 mVpp

≤ 1.5 mVrms /

≤ 15 mVpp

≤ 4.5 mVrms /

≤ 45 mVpp

Normal Mode

Current ≤ 2 mA rms

Common Mode

Current ≤ 1.5 uA rms

Programming /

Readback Resolution

Voltage 1 mV 2 mV 1 mV 2 mV 1 mV 2 mV 10 mV 20 mV

Current 1 mA 0.1 mA 1 mA 0.1 mA 1 mA 0.2 mA 0.1 mA 0.01 mA

Programming /

Readback Accuracy

±(% output+offset)

Voltage ≤ 0.05 %

+5 mV

≤ 0.05 %

+10 mV

≤ 0.05 %

+5 mV

≤ 0.05 %

+10 mV

≤ 0.05 %

+5 mV

≤ 0.05 %

+10 mV

≤ 0.05 %

+50 mV

≤ 0.05 %

+100 mV

Current ≤ 0.1 %

+2 mA

≤ 0.1 %

+1 mA

≤ 0.1 %

+2 mA

≤ 0.1 %

+1 mA

≤ 0.1 %

+2 mA

≤ 0.1 %

+5 mA

≤ 0.1 %

+2 mA

≤ 0.1 %

+1 mA

≤ 0.1 %

+0.1 mA

Temperature

Coefficient per °C

±(% output+offset)

Voltage ≤ 0.005 %+1 mV ≤ 0.005 %

+10 mV

≤ 0.005 %

+20 mV

Current ≤ 0.01 %+3 mA

Transient Response Time2≤ 50 µs for output to recover to within 15 mV

≤ 100 µs for

output to

recover to within

50 mV

≤ 100 µs for

output to

recover to within

120 mV

Settling Time3≤ 30 ms

Measurement Time ≤ 5 ms

OVP Accuracy ≤ 0.5 %+0.1 V ≤ 0.5 %+1 V

OCP Accuracy ≤ 0.5 %+0.1 A

OVP/OCP Response Time4≤ 1 ms

Rising Time at Full Load / No Load ≤ 8 ms ≤ 10 ms ≤ 8 ms ≤ 10 ms ≤ 8 ms ≤ 10 ms ≤ 30 ms ≤ 40 ms

Falling Time at Full Load ≤ 8 ms ≤ 10 ms ≤ 8 ms ≤ 10 ms ≤ 8 ms ≤ 10 ms ≤ 30 ms ≤ 40 ms

Falling Time at No Load ≤ 250 ms

Stability (8 hrs)

±(% output+offset)

Voltage ≤ 0.02 %+2 mV ≤ 0.02 %

+10 mV

≤ 0.02 %

+20 mV

Current 0.1 %+1 mA

Command Processing Time5≤ 10 ms (typical)

Notes:

1 With sense terminal connected.

2 Following a change in output current from full load to half load or vice versa.

3 Maximum time required for the output voltage to change from 1% to 99% or vice versa after receiving a VOLTage or VSET command via GPIB or USB interface.

4 Average time for output to start to drop after OVP/OCP condition occurs.

5 Maximum time for output to change after receipt of commands.

v082218

6 www.bkprecision.com

Programmable Dual-Range DC Power Supplies

9170B & 9180B series

Specifications

(cont.) 9171B 9172B 9173B 9174B 9181B 9182B 9183B 9184B 9185B

Supplemental Characteristics

Dimensions

(W x H x D)

8.3” x 3.4” x 16.3”

(210 x 87 x 415 mm)

8.3” x 5.1” x 16.3”

(210 x 130.5 x 415 mm)

8.3” x 3.4” x 16.3”

(210 x 87 x 415 mm)

8.3” x 5.1” x 16.3”

(210 x 130.5 x 415 mm)

Rack Mount Height 2U 3U 2U 3U

Weight 17 lbs

(7.7 kg)

23.1 lbs

(10.5 kg)

17 lbs

(7.7 kg)

26.4 lbs

(12 kg)

24.2 lbs

(11 kg)

23.lbs

(10.5 kg)

Safety EN61010-1:2001, EU Low Voltage Directive 2006/95/EC

Electromagnetic

Compatibility Meets EMC Directive 2004/108/EC, EN61326-1:2006

Standard Interface USB

AC Input 115/230 VAC ± 10%, 47 Hz - 63 Hz

Environmental

Operating Temperature 0 °C - 40 °C, < 75% R.H.

Storage Temperature -10 °C - 70 °C, < 85% R.H.

Three-Year Warranty

Accessories Included AC power cord, USB cable (type A to type B), line fuse, certificate of calibration and test report

Note: All specifications apply to the unit after a temperature stabilization time of 15 minutes over an ambient temperature range of 23 °C ± 5 °C.

Order information for instrument options

Interface cards Description

DRGL GPIB/LAN card

DR1DIO Single channel digital I/O and analog control card

DR2DIO Dual channel digital I/O and analog control card

DRRS485 RS485 interface card

DRRS232 RS232 interface card

Single channel models: 9171B, 9172B, 9181B, 9182B, 9183B, 9184B, 9185B

Dual channel models: 9173B, 9174B

Rackmount kits Description

DRRM2U1 Rackmount kit for one 2U instrument

DRRM2U2 Rackmount kit for two 2U instruments mounted side by side

DRRM3U1 Rackmount kit for one 3U instrument

DRRM3U2 Rackmount kit for two 3U instruments mounted side by side

2U size models: 9171B, 9172B, 9181B

3U size models: 9173B, 9174B, 9182B, 9183B, 9184B, 9185B

Note: All options can be installed by the user and purchased at any time, either together with the instrument or after.

LAN/GPIB card RS485 card RS232 card Single and dual channel digital I/O

analog input control cards

Interface Card Options