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0 to 鹵6000V Pulse Output
<60ns Rise And Fall Times
<150ns to DC Pulse Width
>10KHz Pulse Repetition Frequency
Optimized To Drive Deflection Plates,
Grids And Other Capacitive Loads
Protected Against Arcs, Shorts And
Load Transients
Voltage And Current Monitor Outputs
The PVX-4130 pulse generator produces fast, high volt-
age wave forms to 6,000V. Optimized for high impedance
capacitive loads, the PVX-4130 is well suited for driving
extraction grids and deflection plates for electrostatic
modulation of particle beams in time-of -flight mass spec-
trometers and accelerators. Its robust and versatile design
also makes it well suited for pulsing or gating power tube
grids, Pockels cells and Q Switches, acoustic transducers,
microchannel plates, photomultiplier tubes and image in-
tensifiers. The exceptional pulse fidelity of the PVX-4130
will optimize the performance of any system in which it is
used.
The PVX-4130 generates an output voltage pulse of 6,000
volts with rise and fall times less than 60ns, with very flat
voltage pulses to DC into a capacitive load. It can gener-
ate singled-ended output pulses from ground to +6000V or
from ground to 鈥?000V, and can also generate pulses
originating from a DC voltage offset from ground by using
both VLow and VHigh power supply inputs. This offset can
be from 鈥?000V to +6000V, with a maximum power supply
voltage differential of
鈮?000V.
The PVX-4130 requires a TTL gate signal, a high voltage
DC power supply and optional DC offset supply inputs.
The output pulse width and frequency are controlled by
the gate signal. The pulse output voltage is controlled by
the amplitude of the input DC power supplies.
When the input gate is high, the V
HIGH
supply is connected
to the output. When the input gate is low, the V
LOW
supply
is connected to the output. Therefore the PVX-4130 can be
used to generate a negative-going pulse by logically
inverting the input gate, so that the input gate is high until
the unit is pulsed. When the input gate goes low, the V
LOW
input supply is connected to the output, thereby generating
a negative-going pulse.
The PVX-4130 features front panel indicator LEDs to moni-
tor the status of the pulse generator. Front panel voltage
and current monitors provide a straightforward means to
view the output voltage and current waveforms in real-time,
eliminating the need for an external high voltage oscillo-
scope probe.
The pulse generator is a direct-coupled, air-cooled solid-
state half-bridge (totem pole) design, offering equally fast
pulse rise and fall times, low power dissipation, and virtually
no over-shoot, under-shoot or ringing. It has over-current
detection and shut-down circuitry to protect the pulse gen-
erator from potential damage due to arcs and shorts in the
load or interconnect cable. All control and protection logic
circuitry, support power, energy storage and output network
are incorporated into the PVX-4130. It can be connected
directly to the load, and does not require series or shunt
resistors, impedance-matching networks between the
pulser and the load, or additional energy storage (capacitor
banks). All of this is taken care of within the PVX-4130.
DIRECTED
ENERGY
INCORPORATED
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