BHK-MG OUTPUT CHARACTERISTICS
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SPECIFICATION (1)
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RATING DESCRIPTION
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CONDITION
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Type of Stabilizer |
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Linear/automatic crossover |
Voltage/Current |
Adjustment Range |
Voltage |
0 to 100% EO max |
Analog or digital, 12 bit |
Current (Source) |
200W Hi Scale: 0 to 100% IO max
200W Lo Scale: 0 to 100% (IO max/10)
40W: 0 to 100% IO max
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Use menu program to change current scale.
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Current (Sink) |
200W: 50% IO max
40W: 100% IO max
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Fixed value, not calibrated |
Programming Resolution |
Voltage |
0.025% EO max |
Current measurement requires a calibrated shunt. |
Current |
0.025% IO max
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Programming Accuracy |
Voltage |
<0.025% EO max |
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Current |
<0.05% IO max
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200W: Both current scales |
Data Readback Accuracy |
Voltage |
<0.05% EO max |
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Current (200W, 40W): |
<0.05% IO max
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For IO of ~9% to 100% of IOMax (7) |
Current (200W): |
<0.02% IO max
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For IO of 0 to <9% of IOMax (7) |
Current (40W): |
<0.01% IO max
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For IO of 0 to <9% of IOMax (7) |
Source Effect |
Voltage |
<0.001% EO max |
Input voltage 105-125/210-250V a-c |
Current |
<0.002% IO max
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Load Effect |
Voltage |
<0.005% EO max |
No load - full load |
Current |
<0.015% IO max
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Short - full load |
Temperature Effect |
Voltage |
<0.01% EO max |
Per °C (0 to 50°C) |
Current |
<0.02% IO max
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Time Effect |
Voltage |
<0.01% EO max |
0.5 - 8.5 hours |
Current |
<0.02% IO max (2)
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Ripple (rms/p-p) |
Voltage:
Fast Mode (3) |
200W: 0.002%/0.02% EO max |
Minus output terminal connected to GND.
Voltage: Nominal load
Current: Short with calibrated shunt.
With minus terminal grounded, common mode currnt does not flow through either the load or the current sensing resistor.
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Slow Mode (3) |
200W: 0.001%/0.01% EO max
40W: 0.004%/0.04% EO max
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Current:
Fast Mode (3) |
200W: 0.02%/0.2% IOr
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Slow Mode (3) |
200W: 0.01%/0.1% IO max
40W: 0.02%/0.2% IO max
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Programming
Rise Time (R) /
Fall Time (F) |
Voltage:
Fast Mode (3) |
180μS(R) / 180μS(F)
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Load ≥EO max/IO max,
Vout between zero and EO max, measured between 10% and 90% of EO max
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Slow Mode (3) |
200W: 90mS(R) / 175mS(F)
40W: 60mS(R) / 75mS(F)
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Current
Fast Mode (3) |
200μS(R) / 200μS(F) (4)
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Load ≤EO max/IO max,
Iout between zero and IO max, measured between 10% and 90% of IO max
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Slow Mode (3) |
200W: 90mS(R) / 175mS(F)
40W: 60mS(R) / 75mS(F)
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Transient
Recovery Time for Load Change (Amplitude/ time constant) |
Voltage:
Fast Mode (3) |
5% EO max / 100μS
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Vout = 400 Vdc and load switched between infinity and 400/IO max.
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Slow Mode (3) |
0.5% EO max / 100μS
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Current
Fast Mode (3) |
50% IO max / 100μS
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Iout = IO max
and load switched between
0.1 x EO max/IO max and
≤ EO max/IO max.
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Small Signal 3dB Bandwidth |
Voltage |
2.5KHz (5) |
For maximum load (EO max / IO max) with a d-c bias of 200V set by the keypad and an analog input sinusoid = 0.2V rms measured at the analog input terminals. |
Current |
2.3KHz (6)
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Slew Rate of Ouput Voltage (Fast Mode (3)) |
Voltage |
>0.015 x EO max V/μSec |
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Current |
>0.03 x EO max V/μSec |
High Range |
Overshoot |
None |
Turn ON/OFF |
Remote Sensing Range |
0.5V d-c per lead |
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d-c Isolation Voltage |
300V, 500V, 1000V models |
1KV d-c 0r p-p plus max. output voltage |
Between each output terminal and chassis. |
2000V models |
0.5KV d-c 0r p-p plus max. output voltage
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Enable/Disable Output Power |
Local |
Front panel keypad |
200W: Acts on digital programming only; 40W: Versatile output on/off port (digital/relay contacts) acts on both analog and digital programming. |
Remote |
IEEE 488 (GPIB) bus
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Output Display |
Local 2 x 16 character alphanumeric backlit LCD |
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Series Connection |
Automatic or master-slave operation, limited by the d-c isoaltion limit voltage |
For slave unit: use analog programming only. |
Parallel Connection |
Automatic or master-slave operation |
For slave unit: use analog programming only. |
NOTES:
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(1) |
Specifications apply to all models except where otherwise indicated.
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(2) |
0.05% for BHK 300-0.6MG. |
(3) |
Fast Mode: internal output capacitor not connected.
Slow Mode (default): internal output capacitor connected.
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(4) |
BHK 2000-20MG (Voltage, Fast Mode): 275mS(R)/275mS (F) |
(5) |
For maximum load (EO max / IO max) with a d-c bias of 200V set by the keypad
and an analog input sinusoid = 0.2V rms measured at the analog input terminals. |
(6) |
For maximum load (EO max / IO max) with a d-c current bias = 200 x IO max / EO max set by the keypad and an analog input sinusoid = 0.2V rms measured at the analog input terminals.
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(7) |
Measurement of a decreasing output current of the power supply that falls below 8.98% ±0.1% of IOMax (or IOMax/10 for 200W, Low Sacle) is automatically measured with increased resolution/accuracy by a factor of 10 until the current rises above 9.69% ±0.1% of IOMax (or IOMax/10 for 200W, Low Sacle).
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