PVX-4150 データシートの表示（PDF） - Directed Energy, Inc. An IXYS Company

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PVX-4150

±1,500V PULSE GENERATOR

Directed Energy, Inc. An IXYS Company 

THE PULSE OF THE FUTURE

PVX-4150

±1,500V PULSE GENERATOR

• 0 to ±1500V Pulse Output

• <25ns Rise And Fall Times

• <60ns to DC Pulse Width

• >240KHz 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-4150 pulse generator produces fast, high voltage

wave forms to 1,500V. Optimized for high impedance ca-

pacitive loads, the PVX-4150 is well suited for driving ex-

traction grids and deflection plates for electrostatic modu-

lation of particle beams in time-of-flight mass spectrome-

ters 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, mi-

crochannel plates, photomultiplier tubes and image intensi-

fiers. The exceptional pulse fidelity of the PVX-4150 will

optimize the performance of any system in which it is used.

The PVX-4150 generates an output voltage pulse of 1,500

volts with rise and fall times less than 25ns, with very flat

voltage pulses to DC into a capacitive load. It can generate

singled-ended output pulses from ground to +1500V or

from ground to –1500V, 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 –1500V to +1500V, with a maximum power supply

voltage differential of ≤1500V.

The PVX-4150 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.

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 VLOW

input supply is connected to the output, thereby generating

a negative-going pulse.

The PVX-4150 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-4150. It can be connected

directly to the load, and does not require series or shunt re-

sistors, 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-4150.

When the input gate is high, the VHIGH supply is connected

to the output. When the input gate is low, the VLOW supply

is connected to the output. Therefore the PVX-4150 can

DIRECTED

ENERGY

INCORPORATED

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