Follow @kepco_careers
Advanced Search
Kepco Power Solutions
718-461-7000
Kepco has introduced an option (identified by suffix L) to optimize 200W and 400W BOP models for driving inductive loads. This option makes the BOP more suitable for a wide variety of applications such as motor testing, testing of magnetic components (coils, speakers, etc.), industrial applications with inductive loads, driving CRT coils, cryogenic applications and powering correcting magnets for medical imaging applications or particle accelerators.

BOP L option 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.

All specifications of the unit in voltage mode are unchanged from the standard model. All specifications listed below are for L option models in Current Mode. All other specifications are identical to the standard BOP.

In current mode the bandwidth of the L option BOP is reduced modestly when operating with a resistive load. Correspondingly, the rise and fall time of the unit is increased somewhat (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.

For higher power BOP models optimized for inductive loads, see Kepco's 1KW BOP-GL Series.

Consult factory for multiple unit pricing . Delivery 4-6 weeks ARO.

BOP INDUCTIVE LOAD SPECIFICATIONS
MODEL (1) Bandwidth (2) (DC to f -3dB) Rise/Fall
Time (3)
Recovery at
Step Load
Time Constant(4)
Load Effect
Nominal Resistive Load (5)
Resistive Load,
Nominal
Inductive
Load, 2mH
100 WATT MODELS
BOP 5-20DL
0 to ±5V, 0 to ±20A
3.9 KHz 55 Hz 90µS 100µS 2 ppm/Hz
BOP 20-5ML, DL
0 to ±20V, 0 to ±5A
12.8 KHz 7.9 KHz 30µS 270µS 3.5 ppm/Hz
200 WATT MODELS
BOP 5-30DL
0 to ±5V, 0 to ±30A
3.5 KHz 32 Hz 110µS 130µS 3 ppm/Hz
BOP 20-10ML, DL
0 to ±20V, 0 to ±10A
11.2 KHz 4.1 KHz 35µS 220µS 12 ppm/Hz
BOP 36-6ML, DL
0 to ±36V, 0 to ±6A
16.0 KHz 6.0 KHz 28µS 30µS 6 ppm/Hz
BOP 50-4ML, DL
0 to ±50V, 0 to ±4A
1.43 KHz 1.8 KHz 245µS 280µS 20 ppm/Hz
BOP 100-2ML, DL
0 to ±100V, 0 to ±2A
3.5 KHz 5.0 KHz 84µS 250µS 47 ppm/Hz
BOP 200-1ML, DL
0 to ±200V, 0 to ±1A
1.2 KHz 2.0 KHz 250µS 300µS 0.017%/Hz
400 WATT MODELS
BOP 20-20ML, DL
0 to ±20V, 0 to ±20A
12.0 KHz 2.5 KHz 33µS 180µS 3 ppm/Hz
BOP 36-12ML, DL
0 to ±36V, 0 to ±12A
12.7 KHz >6.8 KHz 28µS 100µS 3 ppm/Hz
BOP 50-8ML, DL
0 to ±50V, 0 to ±8A
10.6 KHz 4.9 KHz 31µS 200µS 7 ppm/Hz
BOP 72-6ML, DL
0 to ±72V, 0 to ±6A
2.6 KHz 2.7 KHz 125µS 200µS 50 ppm/Hz
BOP 100-4ML, DL
0 to ±100V, 0 to ±4A
1.2 KHz 1.7 KHz 220µS 280µS 70 ppm/Hz

(1) All specifications listed are for inductive load models in Current Mode.
      All other specifications are identical to the standard BOP.
(2) Bandwidth specifications for units with GPIB control are somewhat reduced. Consult factory for details.
(3) 10% - 90%, Short-circuit.
(4) Short-circuit, Nominal Resistive Load.
(5) Load effect increases nonlinearly with frequency from the typical 0.5 mA in DC full scale
      (same as the standard unit) with the average rate listed.

If the load impedance at the working frequency multiplied by the peak value of current equals the voltage limit setting, it is recommended that the output voltage be kept below the voltage limit setting to avoid inducing a large distortion of output current. If the voltage limit is reached, the unit’s bandwidth can be reduced by connecting an external film capacitor between pins 16 and 18 of the unit's programming connector (PC 12). The table below shows the effect that adding the external capacitor has on the 3dB bandwidth for resistive, resistive-inductive or inductive loads, with less than 10% tolerance (excluding the capacitor tolerance).

BOP INDUCTIVE LOAD BANDWIDTH CORRECTION
MODEL External Capacitor
(Across pins 16 and 18 of PC 12 Programming Connector)
0.01µF 0.02µF 0.05µF 0.1µF 0.2µF 0.5µF 1µF
100 WATT MODELS
BOP 5-20DL 2.6 KHz 1.8 KHz 0.9 KHz 0.5 KHz 0.25 KHz 0.12 KHz 0.06 KHz
200 WATT MODELS
BOP 5-30DL 2.6 KHz 1.8 KHz 0.9 KHz 0.5 KHz 0.25 KHz 0.12 KHz 0.06 KHz
BOP 20-10ML, DL 4.1 KHz 2.3 KHz 1.0 KHz 0.57 KHz 0.27 KHz 0.11 KHz 0.06 KHz
BOP 36-6ML, DL 3.7 KHz 2.4 KHz 1.0 KHz 0.6 KHz 0.3 KHz 0.12 KHz 0.06 KHz
BOP 50-4ML, DL 1.4 KHz 1.2 KHz 0.7 KHz 0.47 KHz 0.25 KHz 0.11 KHz 0.06 KHz
BOP 100-2ML, DL 1.8 KHz 1.4 KHz 0.8 KHz 0.51 KHz 0.27 KHz 0.11 KHz 0.06 KHz
BOP 200-1ML, DL 0.84 KHz 0.78 KHz 0.50 KHz 0.31 KHz 0.21 KHz 0.10 KHz 0.05 KHz
400 WATT MODELS
BOP 20-20ML, DL 4.0 KHz 2.4 KHz 1.0 KHz 0.57 KHz 0.30 KHz 0.12 KHz 0.07 KHz
BOP 36-12ML, DL 4.0 KHz 2.4 KHz 1.0 KHz 0.57 KHz 0.27 KHz 0.11 KHz 0.06 KHz
BOP 50-8ML, DL 3.6 KHz 2.1 KHz 0.93 KHz 0.54 KHz 0.25 KHz 0.12 KHz 0.06 KHz
BOP 72-6ML, DL 1.75 KHz 1.3 KHz 0.75 KHz 0.47 KHz 0.26 KHz 0.11 KHz 0.06 KHz
BOP 100-4ML, DL 1.0 KHz 0.8 KHz 0.6 KHz 0.4 KHz 0.23 KHz 0.11 KHz 0.06 KHz

PREVIOUS TOP NEXT

Products • Support • Literature • Contact Us • Careers • About

KEPCO, INC. • 131-38 SANFORD AVENUE • FLUSHING, NY. 11355 U.S.A.
TEL (718) 461-7000 • FAX (718) 767-1102
www.kepcopower.com • email: hq@kepcopower.com


©Copyright 2017, Kepco Inc. All rights reserved