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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
58