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Scientific Instruments GmbH
SI
... the better technology
Roemerstr. 67 | 82205 Gilching/Germany | Phone: +49 8105 77940 | E-mail: info@si-gmbh.de | Web: www.si-gmbh.de
DIRECTED ENERGY, INC.
PVX–4130
±6,000V Pulse Generator
OPERATION MANUAL
SERIAL NUMBER:________________
DATE:__________________________
Directed Energy, Inc.
2401 Research Blvd., Ste. 108
Fort Collins, Colorado 80526
970/493-1901
FAX 970/493-1903
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Related Manuals for DEI PVX-4130
Summary of Contents for DEI PVX-4130
- Page 1 Scientific Instruments GmbH ... the better technology Roemerstr. 67 | 82205 Gilching/Germany | Phone: +49 8105 77940 | E-mail: info@si-gmbh.de | Web: www.si-gmbh.de DIRECTED ENERGY, INC. PVX–4130 ±6,000V Pulse Generator OPERATION MANUAL SERIAL NUMBER:________________ DATE:__________________________ Directed Energy, Inc. 2401 Research Blvd., Ste. 108 Fort Collins, Colorado 80526 970/493-1901 FAX 970/493-1903...
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Page 2: Table Of Contents
DEI PVX–4130 Doc #9100-0218 Rev 4 TABLE OF CONTENTS 1.0 GENERAL DESCRIPTION ................3 2.0 SPECIFICATIONS ..................4 3.0 SAFETY .......................5 3.1 Operating Safety Summary ...............5 3.1.1 Power Source ..............5 3.1.2 Grounding................5 3.1.3 Cover Removal..............5 3.1.4 General Operating Precautions ...........5 3.2 Servicing Safety Summary ..............6 3.2.1 Servicing Procedure ............6... - Page 3 SAFE OPERATING PROCEDURES AND PROPER USE OF THE EQUIPMENT ARE THE RESPONSIBILITY OF THE USER OF THIS SYSTEM. Directed Energy, Inc (DEI) provides information on its products and associated hazards, but it assumes no responsibility for the after-sale operation and safety practices.
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Page 4: General Description
Doc #9100-0218 Rev 4 1.0 GENERAL DESCRIPTION The DEI PVX-4130 pulser is a high voltage solid state pulser designed to drive capacitive loads such as acceleration grids and deflection plates. The PVX-4130 will generate an output voltage swing of 6000 volts, and output current of 30 amperes peak and 0.1 amperes continuous. -
Page 5: Specifications
These specifications are measured driving a 50pF load connected with 4 feet of RG-58 cable, at 6000V output. However the PVX-4130 can drive loads of a few picofarads to several hundred picofarads of capacitance, limited by its maximum power dissipation capability . -
Page 6: Safety
3.1.1 Power Source The PVX-4130 is designed to operate from a power source that will not apply more than 240 volts AC between the supply conductors or between either supply conductor and ground. -
Page 7: Servicing Safety Summary
4.0 OPERATING CONSIDERATIONS 4.1 Output Cabling The PVX-4130 is designed to drive capacitive loads with fast rise times. Since the current out of the GRX is limited, the lower the capacitance, the faster the rise time. Given fixed load characteristics, only the interconnecting cable type and length will vary the output capacitance. -
Page 8: Load Simulation
PVX-4130 trigger input. The input trigger amplitude should be set using a 50Ω load (e.g. a 50Ω scope input) before connecting it to the PVX-4130. If the trigger input is greater than +5V into 50Ω , pulse stretching can occur. -
Page 9: Controls And Indicators
4.6.4 Gated LED The LED labeled "GATED" illuminates when a gate signal of the appropriate amplitude and width to gate the pulser is received. If the "GATED" LED is not illuminated, the PVX-4130 will not generate an output pulse. -
Page 10: Over Current Led
If it is determined that the unit is damaged, the carrier should be notified immediately. Repair problems should be directed to the service department, Directed Energy, Inc. (DEI), Fort Collins, Colorado. Telephone: (970) 493-1901. 5.2 Initial Inspection 1. -
Page 11: Electrical Installation
5.4.1 Power-Up The unit should be powered up using the following procedures: 1. Before connecting the pulse generator to the PVX-4130, set up the pulse generator output to deliver a +5V pulse (±1V) into 50Ω, with a rep rate of approximately 500Hz, and a pulse width of 1µs. -
Page 12: Operating Instructions
8. If there is no output from the PVX-4130, or the output is severely distorted, turn OFF the high voltage power supplies. Leave the PVX-4130 connected... -
Page 13: Power-Down Procedures
2. Set the output pulse width and pulse recurrence frequency by varying the controls of the input pulse generator. The output pulse width should be set by monitoring the output of the PVX-4130. The output pulse voltage will follow the input trigger, but will not replicate in time the exact duration of the input trigger due to asymmetric system propagation delays. -
Page 14: Fuses
FAX (970) 493-1903 8.0 SYSTEM FAILURE MODES The PVX-4130 is capable of generating large amplitude current pulses with very fast rise and fall times. There is limited over-current or over-voltage protection circuitry, and it is the user's responsibility to assure that the interconnect cables and load do not create transients, over-current or over- voltage conditions that could damage the PVX-4130. -
Page 15: Over-Current Failure
Doc #9100-0218 Rev 4 8.1 Over-Current Failure When the output is shorted, the PVX-4130 can deliver in excess of 30A of current (depending on cabling, pulse power supply setting, etc.). A current pulse of this magnitude is in excess of the driver's specifications. The PVX-... - Page 16 DEI PVX–4130 Doc #9100-0218 Rev 4 Changes made by DEI in the design or manufacture of similar equipment which are effected subsequent to the date of shipment of the warranted equipment to the purchaser are reflective of DEI's program of constant product development and improvement and shall not be construed as an acknowledgement of deficiency in the product shipped to purchaser.
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