CPS-i2000(R2) MANUAL
Available Options
Power Sink Option for Fast Down Programming (PS)
Fast
Down Programming:
The input capacitance of a power supply can be discharged only slowly at low load. A fast down-programming
of the output voltage of an almost non-loaded power supply is not possible. This fact leads to undesirably long
cycle times on a test bench. The PS option works as an electronic circuit. It communicates with the control
circuit of the power supply and therefore permits a much higher dynamics of the system, as an external passive
base load.
Maximum continuous power capability is 10W. Maximum switching frequency is 1Hz. The switching frequency
must be reduced if external electrolytic capacitors are used.
Back-Feed Energy:
In the back-feed power by a consumer a regenerative current is charging the output capacitors. The output
voltage will increase. The following formula shows dv/dt=i/C.
When an electronic current sink is used, the output voltage remains constant at the set value. The current sink
provides fast dynamic response.
Fig 1
Fig 2
Fig 3
A Power Sink (see Fig. 1) enables fast down programming at low load conditions or without a load. For
comparison, see Figure 2 (without) and Figure 3 (with PS option). When paralleling the power supplies the SD,
SB and INH need to be connected in parallel to apply synchronized operation.
The PS-option must be installed in the plant because it is not accessible from the outside. It is necessary to
match the power supply after installation and perform electrical safety testing. We therefore recommend a
required a necessary PowerSink option to be purchased with the power supply unit.
Retrofit PS option:
Individual trained CPS-i dealer are pre-retrofit able. Alternatively, a CPS-i power supply may also be sent to the
factory. Please apply for this an RMA number from our service.
Test Certificate and Calibration
Optionally we offer with the delivery of a CPS-i power supply a Manufacturer's Inspection Certificate of
electrical setpoint / actual values. The power supply then is "calibrated". Such Manufacturers Calibration
Certificate for each power supply can uniquely be assigned via the device serial number.
A manufacturer calibration of a CPS-i can frequently be done via controlled recirculation on a regular basis.
Please request the help of your local CPS-i dealer or contact us directly: service@camtec-gmbh.com
sales@powersolve.co.uk
www.powersolve.co.uk
020321
