Simultaneous Positive Negative +950V -950V Pulse Outputs 1,900V Differ

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Simultaneous Positive Negative +950V -950V Pulse Outputs 1,900V Differ

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PVM-4210 DUAL OUTPUT HIGH VOLTAGE PULSE GENERATOR MODULE
Simultaneous Positive Negative +950V -950V Pulse Outputs 1,900V Differential Output <15ns Rise Fall Times <40ns Pulse Width >20KHz Pulse Repetition Frequency Internal High Voltage Power Supplies Optimized Drive Deflection Plates, Pockels Cells, Q-Switches Other Capacitive Loads Economical, Modular Solid State Design
PVM-4210 compact, OEM-style pulse generator module providing simultaneous differential voltage pulses ±950V (1,900V differential), with pulse rise fall times nanoseconds, pulse widths continuously adjustable from nanoseconds pulser operates +24VDC +28VDC support power, features integrated high voltage power supplies. PVM-4210 optimized differential drive deflection plates electrostatic modulation particle beams time-offlight mass spectrometers accelerators. will also drive high impedance, capacitive load such Pockels Cells Switches, electrodes, microchannel plates, acoustic transducers, image intensifiers photomultiplier tubes. exceptional pulse fidelity PVM-4210 will optimize performance system which used. module provides pulse output channels, controlled common control logic. When control logic receives gate signal, both channels pulse simultaneously. channel pulses from ground positive high voltage, other channel pulses from ground negative high voltage. Therefore each output connected electrodes Pockels Cell Q-Switch, pair deflection plates, providing 1,900V differential pulse across cell plates. These outputs also inverted, pulse from high voltage potential ground. width frequency output pulses follow width frequency input gate. amplitude output pulse voltage each channel independently adjustable from 950V using screwdriver-adjustable potentiometers readily accessible panel pulser module. PVM-4210 requires +24VDC +28VDC support power gate signal. safety control flexibility, level signal used enable disable power supplies.
Each channel half-bridge (totem pole) design, offering equally fast pulse rise fall times, power dissipation, virtually over-shoot, under-shoot ringing. unit over-current detection shut-down circuitry protect pulse generator against potential damage arcs shorts load interconnect cables. Unlike some competing solid state switches, PVM-4210 complete pulser solution with high voltage power supplies, energy storage output network, ready use. connected directly load, does require series shunt resistors, impedancematching networks between pulser load, additional energy storage (capacitor banks). this taken care within PVM-4210. pulser housed aluminum enclosure, with threaded mounting holes base simplify installation assembly applications. PVM-4210 direct-coupled, solid-state design using primary insulating medium. conservative design margin gives long component life. keeping PVM-4210 free potting compound encapsulation materials makes easy service component ever does require replacement. Some competing products potted, must replaced they fail. compactness durability PVM4210. Inherent design exceptional pulse fidelity with virtually ringing, over-shoot under-shoot, protection against arcs, shorts load transients reliable, economical module.
DIRECTED ENERGY INCORPORATED
SPECIFICATIONS
(All specifications measured into 50pF load connected each outputs with (~30cm) Belden 8218 coaxial cable
OUTPUT PULSE ELECTRICAL CHARACTERISTICS (Specifications Apply Both Output Channels) Output Voltage Output Voltage Adjustments Pulse Width Pulse Rise Fall Time Pulse Recurrence Frequency Pulse Droop Over/Undershoot Jitter Throughput Delay (Delay from leading edge input gate leading edge output pulse) Maximum Duty Cycle Maximum Average Power (Per Channel) Pulse Output Connectors Output Cables GATE Gate Source Gate Input Gate Rise Time Gate Connector GENERAL Support Power Dimensions (Excluding Connectors) Weight (Approximate) Specifications subject change without notice
+950V (Channel -950V (Channel Screwdriver-adjustable potentiometers, Panel <40ns measured FWHM, controlled input gate 15ns, 10%-90% Single Shot >20KHz continuous, 5MHz burst, controlled input gate <1ns Shot-to-Shot 93ns typical Continuous SHV, Panel (~30cm) Belden 8218 Coaxial Cable
Typical Differential Output, ±950V Min. Pulse Width: 38ns 950V
10ns/Div horizontal scale, 200V/Div vertical scale
External into <20ns DSUB, Panel 24VDC 28VDC 600mA Maximum Current 5.5"W 11"L 1.75"H (140mm 279.5mm 44.5mm Ounces (1.16 kilograms)
2.5µs/Div horizontal scale, 318V/Div vertical scale, center horizontal trace ground
Pulse Fall Time: 13ns 950V
10ns/Div horizontal scale, 200V/Div vertical scale
power dissipated each channel PVM-4210 when driving capacitive load defined formula CV2F, where total load capacitance, including capacitance load, interconnect cable, internal capacitance PVM-4210, pulse voltage, pulse repetition frequency total pulses second). (For these calculations, internal capacitance PVM-4210 125pF, Belden 8218 cable 21.5pf/foot.) Given maximum power supply capability (4mA) channel, maximum load capacitance, frequency and/ voltage which PVM-4210 operate approximated using this formula. lower load capacitances and/or voltages less then 950V, PVM-4210 operate continuous pulse recurrence frequencies greater than 20KHz. This formula applicable when driving non-capacitive (resistive inductive) loads. Contact information assistance using PVM-4210 with different load characteristics impedances.
5MHz Pulse Burst, 950V Output
250ns/Div horizontal scale, 200V/Div vertical scale
20KHz Frequency, Both Channels
25µs/Div horizontal scale, 318V/Div vertical scale
9200-0204 Directed Energy, Inc. 2000
Directed Energy, Inc. IXYS Company 2401 Research Blvd., Suite Fort Collins, 80526 970-493- 1901 Fax: 970-493-1903 Email: deiinfo@directedenergy.com Web: http://www.directedenergy.com

Simultaneous Positive Negative +950V -950V Pulse Outputs 1,900V Differ

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