Bop inductive load specifications, Bop inductive load - bandwidth correction – Atec Kepco-BOP-1 Series User Manual

Page 7

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KEPCO, INC. • 131-38 Sanford Avenue • Flushing, NY 11355 USA • Tel: (718) 461-7000 • Fax: (718) 767-1102

Email: [email protected]www.kepcopower.com

OPTIMIZE BOP 200W AND 400W
FOR DRIVING INDUCTIVE LOADS
TO 1 HENRY

BOP INDUCTIVE LOAD SPECIFICATIONS

BANDWIDTH (DC TO F-3dB)

INDUCTIVE

LOAD, 2mH

RESISTIVE

LOAD, NOMINAL

RISE/FALL

TIME (2)

BOP 20-20ML
0 to ±20V, 0 to ±20A

MODEL /

SPECIFICATION (1)

BOP 36-6ML
0 to ±36V, 0 to ±6A

BOP 36-12ML
0 to ±36V, 0 to ±12A

BOP 50-4ML
0 to ±50V, 0 to ±4A

BOP 50-8ML
0 to ±50V, 0 to ±8A

12 KHz

LOAD EFFECT

RESISTIVE LOAD,

NOMINAL (4)

3 ppm/Hz

2.5 KHz

33μS

BOP 72-6ML
0 to ±72V, 0 to ±6A

BOP 100-2ML
0 to ±100V, 0 to ±2A

BOP 100-4ML
0 to ±100V, 0 to ±4A

RECOVERY TIME

CONSTANT AT

STEP LOAD (3)

180μS

BOP 20-10ML
0 to ±20V, 0 to ±10A

11.2 KHz

12 ppm/Hz

4.1 KHz

35μS

220μS

12 KHz

4 ppm/Hz

5 KHz

30μS

210μS

12.7 KHz

3 ppm/Hz

6.8 KHz

28μS

100μS

1.43 KHz

20 ppm/Hz

1.8 KHz

245μS

280μS

10.6 KHz

7 ppm/Hz

4.9 KHz

31μS

200μS

2.6 KHz

50 ppm/Hz

2.7 KHz

125μS

200μS

3.5 KHz

47 ppm/Hz

5.0 KHz

84μS

250μS

1.2 KHz

70 ppm/Hz

1.7 KHz

220μS

280μS

For digital meters, substitute the letter D for M when ordering - example: BOP 20-10DL.

For GPIB control of the BOP, add the suffix 4886 after the letter L in the model name -
example: BOP 20-10ML4886.

(1) All specifications listed are for inductive load models in Current Mode.

All other specifications are identical to the standard BOP.

(2) 10% - 90%, nominal resistive load.
(3) Short-circuit, nominal resistive load.
(4) Load effect increases nonlinearly with frequency from the typical 0.5 mA in DC full scale

(same as the standard unit) at the average rate listed.

As an option (L suffix), Kepco’s 200W (except BOP
200-1M) and 400W BOP models may be optimized
for driving inductive loads. These BOP units are
designed to operate in a stable manner in Current or
Current Limit Mode for loads up to 1 Henry. They are
also stable with any R-L series load combination.

To prevent voltage limit operation, the equivalent
impedance of the R-L series load at the working
frequency, must be lower than the nominal resistive
load value (nominal output voltage/nominal output
current).

All specifications of the unit in voltage mode are
unchanged from the standard model. The specifications
listed in the table to the right are for inductive load
models in Current Mode. All other specifications are
identical to the standard BOP.

In current mode the bandwidth of the BOP is reduced
when operating with a resistive load. Correspondingly,
the rise and fall time of the unit is increased (model
dependent). Further, it is possible to reduce the
bandwidth in current mode in a predictable way,
using one customer installed component on the rear
programming connector of the BOP (see Bandwidth
Correction Chart).

BOP INDUCTIVE LOAD - BANDWIDTH CORRECTION

BOP 20-20ML

EXTERNAL CAPACITOR

(ACROSS PINS 16 AND 18 OF PC 12 PROGRAMMING CONNECTOR)

MODEL

0.01 μF

0.02 μF

0.05 μF

0.1 μF

0.2 μF

0.5 μF

1 μF

4.0 KHz

2.4 KHz

1.0 KHz

0.57 KHz

0.30 KHz

0.12 KHz

0.07 KHz

BOP 20-10ML

4.1 KHz

2.3 KHz

1.0 KHz

0.57 KHz

0.27 KHz

0.11 KHz

0.06 KHz

BOP 36-6ML

4.0 KHz

2.5 KHz

1.0 KHz

0.55 KHz

0.25 KHz

0.12 KHz

0.06 KHz

BOP 36-12ML

4 KHz

2.4 KHz

1 KHz

0.57 KHz

0.27 KHz

0.11 KHz

0.06 KHz

BOP 50-4ML

1.4 KHz

1.2 KHz

0.7 KHz

0.47 KHz

0.25 KHz

0.11 KHz

0.06 KHz

BOP 50-8ML

3.6 KHz

2.1 KHz

0.93 KHz

0.54 KHz

0.29 KHz

0.12 KHz

0.06 KHz

BOP 72-6ML

1.75 KHz

1.3 KHz

0.75 KHz

0.47 KHz

0.26 KHz

0.11 KHz

0.06 KHz

BOP 100-2ML

1.8 KHz

1.4 KHz

0.8 KHz

0.51 KHz

0.27 KHz

0.11 KHz

0.06 KHz

BOP 100-4ML

1.0 KHz

0.8 KHz

0.6 KHz

0.4 KHz

0.23 KHz

0.11 KHz

0.06 KHz

For more information on the

BOP Inductive Load Models visit

www.kepcopower.com/bop-ind.htm

APPLICATIONS FOR KEPCO’S

BOP INDUCTIVE LOAD MODELS

Motor Testing

Testing of Magnetic Components

Coils, Speakers, etc.

Industrial Applications with

Inductive Loads

Driving CRT Coils

Cryogenic Applications

Correcting Magnets for

Medical Imaging or

Particle Accelerator

s

200 WATT

400 WATT

200 WATT

400 WATT

7

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