CSPP Capacitor Charging Unit Operation Manual
CSP-CSPP-8000/2
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2. Introduction
This manual covers the CSP-P model available from AAE. The CSP-P is based on the highly
proven CSP-300, the CSP-P has a high voltage charger rated at 1500 joules per second, and can
supply up to 350 joules of energy per shot into boomer and sparker loads. The CSP-P allows the
user to select a greater number of power levels than previous models; this can effectively tune the
source to the desired frequency response.
All CSP power supplies across the range incorporate many common parts and can be considered
essentially similar with varying power capabilities. All units feature a switchable soft start „power
save‟ circuit; AVIP (Automatic Variable Input Power) which allows the units to be operated from
reduced generator sizes when operating at low output powers.
Traditional high voltage power supplies (bang boxes) will charge the energy storage capacitors at a
fixed high rate for example at 1500J per second even when the average energy drawn from the
capacitors is less; a typical example may be 100 J at 3 pps (300J). This results in a rapid capacitor
charge rate for 67 mS followed by nothing, until the next discharge / charge cycle. This charge / no
charge operation can often result in generator hunting as the load changes, and may mean that a
larger generator is needed than would be the case if the power requirement was averaged over
time. By reducing the peak charge rate, the generator hunting is all but eliminated, and a smaller
capacity generator is required. The AVIP circuitry will automatically adjust charge rate from 20% to
100% of specification, thus lowering the peak charge rate to just 300 J / second compared to
bursts of 1500J/second. The circuitry also features a soft start function, which may take around 20
seconds before the charge rate is ramped up to the correct amount for the task in hand.
The CSP-
P allows the user to effectively „tune‟ the sound source to operate at a lower frequency
by lowering the operating voltage and increasing the capacitance to supply the correct energy to
the sound source. This may be effective in certain instances where more penetration is required.
The CSP-P monitors the output of the system for open circuit fault conditions and over current fault
conditions, limited to approx 4000A.
