The current sources of the series BCS (bipolar current source) and CCS (constant current source)
from HighFinesse have been developed for precision experiments in the areas of quantum optics and
atomic physics and are especially suitable for the technically demanding requirements in the area
of physical basic research.
| Power features | |
| Types | BCS-series: analog controlled, bipolar current generator with continuous sweep through zero. Bipolar
transistor technology.
CCS-series: Analog controlled constant current generator. Bipolar transistor technology. |
| Power range | Up to 100 A. Supply: one/three phase mains voltage. Cooling: Air/water cooling
Up to 10 mA. Supply: battery incl. recharge unit |
| Specifications | Current-/Voltage range individually as required |
| Current outputs | Grounded or floated (adjustable) |
| Control | Analog: with +/-10 V control voltage
Manual: 10-turn-potentiometer |
| Trigger characteristics | Trigger sets the current to zero or chages between two current values.
Configuration to interlock is possible. |
| Response time | Adjustable between 100 µs and 100 ms |
| Waviness of the Current | < 10-5(characteristic multiplication factor) |
| Current noise | (Inoise(RMS)*Rmax)/(Imax*Rmax) < -90 dB (typically between -95 and -110 dB)
due to careful electronic and mechanic design for noise protection |
| Adjustment accuracy | 0,1 % (of total amplitude) without galvanic isolation
1 % (of total amplitude) with galvanic isolation |
| Long term stability | Better than 0,01 % in 120 h (standard error referring to the total amplitude) |
| Temperature coefficient | 25 ppm/K |
| Monitor | Calibrated monitor output for the measurement of the source current
LC current display |
| Case | Standard 19" rack system |
| Option: Galvanic isolation | For the analog control port, monitor and trigger |
| Option: Battery set | For operation from batteries (up to 3 A) |
| Guarantee | 24 months guarantee by manufactor, extended service options |
Extremely low-noise bipolar transistor technology