02100004 Rev 1
CCPF-3500-XX User Manual
Page 3 of 15
1.
Description of CCPF-3500-XX Power Supply
The CCPF-3500/4000-XX capacitor charging power supplies are designed for OEM laser
manufacturers. The CCPF-3500 power supply provides up to 3500 J/s average charging
power for full discharge PFN applications, while the CCPF-4000 power supply provides
up to 4000 J/s charging power for reservoir capacitor banks. The main power output
provides a constant current to charge up a capacitor to the programmed value.
The CCPF-3500/4000-XX can be configured for maximum output voltages up to 4000V
where the XX indicates the maximum output voltage. As an example, a CCPF-3500
configured for 1000V maximum output voltage is designated as a CCPF-3500-1P, where
P indicates a positive output which is the standard polarity. An op24VDC output
is available for auxiliary power.
The CCPF takes AC input from 200 – 240VAC, 50/60 Hz and rectifies it by the input
rectifier bridge. The rectified voltage is boosted to non-isolated 400 VDC by the Power
Factor Correction (PFC) circuit. The purpose of the PFC is to force the input current to
be in phase with the input voltage, close to unity power factor; such that from 20% to
100% load the power factor is better than 98%. The PFC also produces the auxiliary
power for the fans and control circuits. The 400 VDC power is the source for the inverter
to generate the high output voltage for the capacitor load.
Figure 1, CCPF-3500 Block Diagram
