The values listed represent typical performance. Formal controlled specicaons for use in equipment design may be obtained from CPI
CANmarkeng@cpii.com www.cpii.com +1-905-877-0161
Model VPW3493 is a power supply modulator
(PSM) intended to operate a wide range of CPI
pulsed Extended Interacon Klystrons (EIK) in a
variety of applicaons. It is an integral AC pow-
ered unit, congured using a oang deck mod-
ulator and lament supply coupled to a syn-
chronously switched high voltage power supply.
The power supply is designed to provide high
stability for improved EIK performance with low
stored energy to protect the EIK should faults
occur.
An oponal Control and Monitoring Unit
(CMU), VZW3556, provides modulaon control
and monitoring for the PSM. Synchronizing and
triggering signals are generated within the con-
trol unit which also serves to monitor, protect
and report on the status of the transmier.
The CMU funconality could be provided by the
user’s system.
EIK POWER SUPPLY/MODULATOR
Pulsed Power Supply
Features
Input Voltage 209 to 241 VAC
Pulse Width 0.2 to 50 µs
Pulse Rate Frequency Up to 50 kHz
Duty Cycle Up to 10 %
Temperature Operang 0 to +50 °C
Temperature
Non-operang
-40 to +60 °C
Humidity
95% relave
non-condensing
Altude 3,000 m
Dimensions (LxWxH mm) 585x305x190
Mass 40 kg
Conducon Cooled
Oponal Control & Monitoring Unit
Broad range of pulsed EIKs supported
Model VPW3493
The PSM performs the following mechanical and electrical funcons:
Provides suitably regulated cathode-to-body, collector-to-body (or cath-
ode), cathode heater, focus electrode bias and focusing voltages
Provides coherent high voltage power supply switching and EIK focus elec-
trode pulsing
Monitors voltages, currents and temperatures for fault condions and
performs suitable trip funcons
Mechanical conguraon provides robust mounng, suitable PSM cooling
and personnel safety from high voltages and hot surfaces
The oponal Control and Monitoring Unit, used for operaonal monitoring
when not supplied by the radar control system, is housed in a standard 19
inch aluminum chassis. It includes an internal preset pulse generator.