CSPP Capacitor Charging Unit Operation Manual
CSP-CSPP-8000/2
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Page
11
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59
The AVIP technology inside the unit can be utilised to reduce the generator requirements. The
CHARGE RATE switch has two positions (Located on rear panel)
IN
:
High Charge rate.
The charger delivers the full charge rate (1650 J/sec peak) on demand to charge
the storage capacitors.
OUT :
Auto Charge rate.
The AVIP (Automatic Variable Input Power) circuitry is operational. This adjusts the
charge rate automatically to suit the capacitor selection and the repetition rate used,
and ensures that a constant current is drawn from the AC mains supply. It is a soft
start circuit and adjusts the charge rate by 5% per sample; a sample occurs each
trigger pulse. AVIP will adjust the charge rate from 20% to 98%, thus allowing 100J
3pps operation from a 500 VA generator. Note that it can take up to 16 samples for
the charge rate to be set to the correct amount.
AC Power Requirements
Voltage ratings are quoted elsewhere in this manual.
Typical Currents
At 1500J at 1 pps (AVIP out of circuit); Non PFC charger, the following currents apply:-
Voltage
Peak Current
Average Current
110 VAC 50 Hz
28A
19.7A
240 VAC 50 Hz
19.5A
7.9A
(At 60 Hz, the peak currents are slightly smaller)
To see clearly the effect of the AVIP board the following measurements are typical:-
240 VAC at 50 Hz supply. 100J at 1 pps output power
Peak Current
Average Current
AVIP IN
2.58A
1.06A
AVIP OUT
9.51A
1.11A
