02100005 Rev 1
CCPF-500 CCPF-750 User Manual
Page 11 of 17
5.
Typical Applications
5.1
Using a CCPF with a pulse forming network (PFN)
The above block diagram shows a typical connection between a CCPF capacitor charging
power supply and an overdamped pulse-forming network. In a typical operation, when
the CCPF is ENABLED via Pin 1, the INHIBIT function, the CCPF will charge up the
PFN capacitor to the programmed value and then transmit an END OF CHARGE signal
to the user. Before discharging the load capacitor into the PFN, the CCPF should be
disabled via the INHIBIT function. Once the PFN is completely discharged and the SCR
has completely turned off, the charging function can be ENABLED via the INHIBIT
function and the CCPF will charge the capacitor again to the programmed value. PFN
designers may choose to include a limiting resistor and a reversal protection diode to
protect the power supply if there is any possibility of an arc in the PFN circuitry.
