Frequently Asked Questions

The PVX-4141 and PVX-4141B are functionally identical high-voltage pulsers. The B suffix denotes a chassis or packaging revision, not a change in electrical design or switching performance. A unit ordered today ships as the current revision, and both carry the same output ratings.

The PVX-4140 and PVX-4141 are functionally equivalent, sharing the same electrical specifications and switching performance. The difference is mechanical: the PVX-4141 uses an updated chassis design. Either model delivers the same output for the same application.

Almost all PVX Series pulsers require an external high-voltage power supply, which sets the amplitude of the output pulse. The one exception is the PVX-4000-2kV-Int, which has an integrated internal high-voltage source and does not need a separate supply.

The PVX-4000 series carries CE certification. Most other PVX models do not currently carry CE, UL, or other regulatory markings. If a project requires a specific certification, confirm the status for the exact model before ordering, since markings can vary by configuration (verify).

The PVX Series has no native LabVIEW drivers, but it can be controlled indirectly through LabVIEW by automating the external power supply and pulse generator that drive it. Since the PVX takes its high-voltage input and trigger timing from those external instruments, programming them in LabVIEW gives you full control over the pulse output.

The PVX-4110 ships with three high-voltage cables (part number 6050-0061) and one 6-foot AC power cord (part number 1950-0002). These cables connect the pulser to its external high-voltage supply and the load, so the unit is ready to wire into a test setup on arrival.

The PVX-4130 ships with a checkout sheet documenting functional verification testing. A formal calibration certificate can be requested at the time of new-unit purchase at no additional charge. Ask for it on the order so it ships with the instrument.

Yes. Every new PVX high-voltage pulser ships with a standard accessory kit at no additional cost, containing the cables and connectors needed for initial setup. The exact contents depend on the model, so check the datasheet or packing list for the specific unit.

No. The PVM-4210 does not include a 24 VDC power supply. The module draws its support power from an external 24 VDC to 28 VDC source, which must be purchased separately and sized for the module's current draw.

A laser diode driver is an electronic instrument that precisely controls the current delivered to a laser diode, enabling stable, repeatable, and safe optical output. Because laser diodes are sensitive to overcurrent and transients, the driver also protects the diode from spikes that could damage or destroy it.

Yes. Most BNC pulsed laser diode drivers offer adjustable pulse width, with continuously variable options that typically range from nanoseconds to microseconds depending on the model. The exact range and minimum pulse width vary by driver, so check the datasheet for the specific unit.

The PCX-7500-EX pulsed laser diode driver has a maximum compliance voltage of 110V, which suits driving laser diode arrays and high-compliance-voltage diodes. The 110V headroom lets the driver deliver its rated current into loads that need more than a single junction's forward voltage.

The Model PCM-7140-200 pulsed current driver is designed to handle laser diodes requiring up to 15 amps at 50 volts. It is part of the PCM Series of current-mode drivers, which regulate the current delivered to the diode rather than the voltage. For other current and compliance-voltage combinations, BNC offers additional models across the PCM and PCX families.

Yes. The PCX-7500 remains available as a specialized high-current driver produced in limited builds. Lead times may vary with component availability, so request a current quote and delivery estimate when planning a purchase.

Building a custom driver demands significant expertise, and a single design error can destroy expensive laser diodes. The PCX-7401 and PCX-7421 are professionally engineered, tested, and calibrated, with current regulation and protection already proven in hardware. That saves development time and removes the risk of damaging costly diodes during bring-up.

There is a standard minimum order quantity for standalone laser diode driver modules, with flexibility when they are bundled with other equipment. Contact us with your quantity and application and we will confirm what applies to your order.

Pulsed power delivers high-energy electrical pulses over very short durations, from nanoseconds to microseconds. This produces instantaneous peak power levels far above what continuous systems can reach, while keeping average power low. The energy is stored, then released in a brief burst, which is why pulsed systems can drive loads that steady-state supplies cannot.

BNC pulsed power systems drive resistive, inductive, and capacitive loads, including laser diodes, Pockels cells, plasma chambers, solenoids, and spark gap electrodes. The right model depends on the load's voltage, current, and timing requirements, since each load type stresses the driver differently.

Key precautions include using properly rated cabling and connectors, training personnel on lockout and tagout procedures, maintaining safe clearance distances, and never working alone. Stored energy in capacitors can remain dangerous after power is removed, so always discharge and verify before touching any connection.

A pulse delay generator does not drive the load directly. Instead, units such as the Model 577 supply the precise trigger and gate timing that tells a high-voltage pulser when to fire. The pulsed power unit then delivers the actual high-current or high-voltage output to the load. Pairing the two gives you accurate timing control over the pulse.

Yes. They are often integrated in the same setup, with digital delay generators providing precise timing control and DEI high-voltage units delivering the actual high-current or high-voltage output. The delay generator triggers the pulser at the right moment, which lets you synchronize the high-voltage pulse with other events in the test.

It depends on the model and its output topology. Some supplies support series connection for higher voltage or parallel connection for higher current, but not every model is designed for stacking. Combining supplies safely requires matched units and correct isolation, so confirm the configuration with Berkeley Nucleonics before wiring them together.

Yes. Berkeley Nucleonics offers service agreements for many pulsed power products, depending on the instrument and its value. Coverage can include calibration, preventive maintenance, and repair. Contact us with the model number to see what options apply to a specific unit.

Multi-year service agreements are available in 2-year, 3-year, and 5-year terms across the product range. These keep your instruments calibrated, supported, and covered across the life of the product. To scope an agreement for a specific model or request a quote, contact info@berkeleynucleonics.com or use the Request a Quote form.

The fastest route is the Request a Quote form on this site, which sends your request straight to the front office. You can also call 415-453-9955 or email info@berkeleynucleonics.com with the model and quantity you need. Typical response time is under 2 hours. If an order is time-sensitive, note that in your message so the team can flag it for expediting.

Directed Energy is a division of Berkeley Nucleonics Corporation, headquartered at 2955 Kerner Blvd, San Rafael, CA 94901. Sales offices are located throughout the United States and in many European and Asian countries. For orders, quotes, or support from any region, reach the front office at info@berkeleynucleonics.com.

One year from the date of shipment, return to manufacturer, covering parts and labor. The term is the same across every product line, including the high current and high voltage pulsers. See the warranty page for what is and is not covered.