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SERIES BOP-HV




                                                                                                                                 Model BOP 500M



The Kepco Model BOP 500M and BOP
1000M are high voltage power sources, up to           BOP-HV MODEL TABLE
±500V or ±1000V, respectively. These combine
                                                                                              CLOSE LOOP GAIN
the capabilities of fast programmable power                                                  VOLTAGE CURRENT
                                                        MODEL(3)                             CHANNEL CHANNEL                  OUTPUT IMPEDANCE
supplies with a Class A output stage,                                  d-c OUTPUT RANGE         GV       GI           VOLTAGE MODE         CURRENT MODE
which can respond bi-directionally from                                Eo max.    Io max.      (V/V)   (mA/V)       SERIES R SERIES L(1) SHUNT R SHUNT C(2)

zero. The BOP-HV can be operated in                 BOP 500M           ±500 ±80mA               50         8.0      0.05       5mH     100M 0.3µF
either a "voltage stabilizing" or "current          BOP 1000M ±1000 ±40mA                      100         4.0       0.2      50mH 400M 0.4µF
stabilizing" operating mode (selectable by          (1) For determining dynamic impedance in voltage mode.
a front panel switch).                              (2) For determining dynamic impedance in current mode.
                                                    (3) To specify digital display, substitute the suffix "D" for "M."

The term bipolar means that the voltage and
current outputs can be made to vary smoothly
and linearly through their entire plus and          FEATURES
minus rated ranges, passing through zero            · 40 watts, linear 4-quadrant operation.
with no polarity switching.
                                                    · FET output stage.
They can source or sink up to 100% of their
current rating at any voltage setting, depending    · Preamplifiers for summing and scaling arbitrary input signals.
on the duty cycle. Please refer to the plot of      · Wide bandwidth.
voltage vs. current, Figure 1. The separate
bipolar voltage and current control channels        · Voltage and current stabilization with automatic crossover to
are backed by four independently adjustable           current and voltage limits.
(and programmable) limits. Four front panel
LEDs tell you whether the unit is operating
in the voltage or current mode, or against the
voltage limit or current limit. A mode switch
on the front panel selects the operating channel.
The tabulation of the effective series resistance
and inductance in voltage mode, and the
effective shunt resistance and shunt capacitance
in current mode, is done to allow a calculation
of the output impedance versus frequency.
                                                                                             AN ISO 9001 COMPANY




                   CompuMess Elektronik GmbH · Lise-Meitner-Str.1 · 85716 Unterschleissheim
                        Tel 089-321501-0 · Fax 089-321501-11 · www.compumess.de · www.netzteile.de
                                                                                    The BOP-HV incorporates two separate
 BOP-HV GENERAL SPECIFICATIONS                                                      control channels, for local (front panel) or
                                                                                    remote control of the output current and the
    SPECIFICATION            RATING/DESCRIPTION                  CONDITION
                                                                                    output voltage. In addition, bounding currents
INPUT
a-c Voltage              105-125, 210-250V a-c              User selectable
                                                                                    for bipolar voltage and current limiting are
Current                        3.8A rms                    Max load, 115V a-c
                                                                                    provided which may be adjusted manually (by
Frequency                      47-65Hz                           Range              front panel controls) or can be remotely
OUTPUT                                                                              programmed. All control and bounding
d-c Output                     Bi-direction                     MOSFET              channels are connected to the bipolar (Class
                               series pass                                          A) output stage via an "EXCLUSIVE-OR"
Type of Stabilizer          Voltage & current             Automatic crossover       gate, so that only one circuit is in control of
Voltage                     0-100% of rating               Adjustment range         the BOP-HV at any one time.
Current                     0-100% of rating               For temp 0-55°C
Sink                      See source/sink plot                 Duty cycle           The amplifier in each channel is controlled via
Error Sense                0.5V per load wire              Voltage allowance        a zeroable preamplifier offering a minimum of
Isolation Voltage           500V d-c or peak               Output to ground         20,000 volts per volt open loop gain. These
Leakage Current            <50 microamperes              rms at 115V a-c 60Hz       preamplifiers may be unstrapped and used as
Output to Ground             <5 milliamperes             p-p at 115V a-c 60 Hz      uncommitted amplifiers for signal scaling and
Series Connection                 500V                    Max voltage off grd.      summing. With their internal input/feedback
Parallel Connection                 --                     Not recommended          elements, they function as unity gain inverting
OVP                                 --                        Not available         amplifiers driven by either the panel-mounted
CONTROL                                                                             zero center controls, or an external -10V to
Type        Voltage     Variable input, fixed gain                                  +10V signal applied through the front panel
            Current      Differential comparison                                    binding posts. Their terminals are accessible at
Voltage/Current                                                                     the rear for operational control with external
               Local     10-turn zero-center pot                                    feedback.
    Remote Analog             -10V to +10V
     Remote Digital     Use SN or SNR interface             12 bit listen-only      All rear programming and flag connections
Bounding                  ±Voltage/current local        Four screwdriver trimmers   are made through a 30-terminal plug which
                        ±Voltage/current remote                0 to 10 volts        can be wired for various control functions.
Dynamics                See dynamic spec table                  Fast only
                                                                                    T realize the full high speed potential of the
                                                                                      o
User Amplifiers          Uncommitted gain 20K                 Two provided
References                      ±10 volts                     Two provided
                                                                                    BOP-HV, the load characteristics should be
MECHANICAL
                                                                                    mainly resistive. Load capacitance and induc-
Input Connection       Detachable IEC type 3-wire              All models           tance up to 0.01µF and 0.5 mH, respectively, can
                                                                                    be tolerated without performance deterioration.
Output                        Binding posts                Front signal/output
Connections              30-terminal connector               Rear user port
                               Barrier strip                  Rear output
Meters                  Two 21/2" horiz., zero-center          Analog, 2%
                           Two 31/2" digital LCD                  Digital
Indicators                      Four LEDs               Voltage/current/bounding
Mounting                Mounting "ears" supplied              Full rack size
Cooling                         Convection                     Top surface
Dimensions inches           7 x 161/2 x 1915/16               Full rack size
(HxWxD)        mm       177 x 419.1 x 490.5
Finish: Fed Std 595      Light gray, color 26440              Front panel
Weight                        65lb (29.5Kg)               Packed for shipment




For high power bipolar power supplies, see Series BOP High
Power, page 44.
For bipolar power supplies, see Series BOP, page 50.                                                    FIGURE 1
                                                                                                 Output Source-Sink plot




                                                                                             BOP-HV are CE marked per the Low
                                                                                             Voltage Directive (LVD), EN61010-1.


          CompuMess Elektronik GmbH · Lise-Meitner-Str.1 · 85716 Unterschleissheim
                Tel 089-321501-0 · Fax 089-321501-11 · www.compumess.de · www.netzteile.de
                                                                                                                                   57
     OUTLINE DIMENSIONAL DRAWINGS
     Fractional dimensions in light face type are in inches,             BOP-HV STATIC SPECIFICATIONS
     dimensions in bold face type are in millimeters.
     Tolerance: ± 1/64" (0.4) between mounting holes
                                                                                                         OUTPUT EFFECTS (1)         PREAMPLIFIER OFFSETS (6)
                  ± 1/32" (0.8) other dimensions                           INFLUENCE QUANTITY                                                                   REFERENCES
                                                                                                   VOLTAGE MODE    CURRENT MODE        Eio          Iio
                                                                        Source (min.-max.)         <0.0005%        <0.0005% (5)       <5µV        <1nA         <0.0005%
                                                                        Load                       <0.0005%          <0.005%           --          --          <0.0005%
                                                                        (no load-full load)
                                                                        Time (8-hour drift)          <0.01%           <0.01%         <20µV        <1nA          <0.005%
                                                                        Temperature,                 <0.01%           <0.01%         <20µV        <1nA          <0.005%
                                                                        per °C
                                                                        Ripple and        rms       <10mV             <25µA(4)          --          --          <10µV
                                                                        Noise (2)           pp     <500mV (3)        <200mV(4)          --          --          <100µV
                                                                       (1) Specifications are expressed as a percent-of-setting for the output range 10% to 100%.
                                                                           Below 10% output, the specification limit is the rated percentage of the 10% output setting.
                                                                       (2) One terminal must be grounded, or connected so that the common-mode current does not
                                                                           flow through the load.
                      FRONT VIEW                                       (3) Peak-to-peak ripple is measured over a 20Hz to 10MHz bandwidth.
                                                                       (4) For frequency components in the bandwidth of the current stabilizer. Beyond cutoff, noise
                                                                           will appear as a voltage component equal to the rated voltage mode noise.
                                                                       (5) Or 0.2µA, whichever is greater.
                                                                       (6) The output effect can be calculated by the relationship:
                                                                          Eo = ±Er (Rf/Ri) ±Eio (1 + Rf/Ri) ± Iio (Rf) where Rf is the feedback resistor,
                                                                          and Ri is the input resistor from the reference, Er.



                                                                       The tabulated offsets, more particularly their change as a function
                                                                       of source, time and temperature, allow a user to calculate
                                                                       performance of the uncommitted amplifier(s) with user specified
                                                                       input and feedback components. The formula for this is given in the
                                                                       static specifications table footnote.



                                                                         BOP-HV DYNAMIC SPECIFICATIONS
                                                                                                         VOLTAGE CHANNEL                    CURRENT CHANNEL
                    BOTTOM VIEW                                                                       BOP 500M      BOP 1000M          BOP 500M        BOP 1000M

                                                                         Closed Loop Gain            50V/V           100V/V            8mA/V                    4mA/V
                                                                         Bandwidth ­3db              5.3KHz          1.8KHz            2.0KHz                  1.5KHz
                                                                         Programming                 30µsec          88µsec            80µsec                  106µsec
                                                                         Time Constant
                                                                         Large Signal                  6KHz          1.9KHz            2.5KHz                  1.6KHz
                                                                         Frequency Response
                                                                         Slew Rate                  18V/µsec        12V/µsec       1.25mA/µsec            0.4mA/µsec
                                                                         Load Recovery               25µsec          75µsec           25µsec                50µsec
                                                                         Time Constant


                       REAR VIEW




                       SIDE VIEW




                                                                                                            AN ISO 9001 COMPANY




                                              CompuMess Elektronik GmbH · Lise-Meitner-Str.1 · 85716 Unterschleissheim
                                                    Tel 089-321501-0 · Fax 089-321501-11 · www.compumess.de · www.netzteile.de
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