Thumbnail of NBU-1508 Thyristor-Based Discharge Circuit for Laser Systems photo 1
Thumbnail of NBU-1508 Thyristor-Based Discharge Circuit for Laser Systems photo 2
Thumbnail of NBU-1508 Thyristor-Based Discharge Circuit for Laser Systems photo 3

Description

The NBU-1508 discharge circuit is a solution tailored for the development of solid-state laser systems. This module is adept at managing the complete discharge of a relatively small capacitor bank, typically around 100uF. When paired with an external inductor, it effectively generates short, bell-shaped pulses on a flashlamp, with durations ranging from tens to hundreds of microseconds.

The NBU-1508 is equipped with a thyristor, its driver, protective circuits, and both simmer and trigger circuits, offering comprehensive control for your laser system needs. It's crucial to note that the NBU-1508 is designed to function as part of a larger system and is not a standalone product. To operate effectively, it requires integration with a capacitor charging power supply, an external inductor, and a capacitor bank, along with a few additional components and controls. This integration makes it a versatile choice for powering Q-switched Nd:YAG lasers or similar applications.

One of the features of the NBU-1508 is its ability to support both serial and external triggering, providing flexibility in its operation. Additionally, the design ensures a clear and visible separation between low and high voltage parts. The 24V power input and all interface circuits are separated from the high voltage circuits by 4mm creepage distances and solid insulation, capable of withstanding a 2500VAC test voltage, ensuring safety and reliability in its operation.

 

Our IGBT-based discarge circuits:

NBU-1012 discharge circuit, up to 1000V, 1000A. It forms quasi-rectangular pulses on a flashlamp (using energy stored in an external capacitor bank) and provides simmer current during the interval between pulses

We have also serial simplified model NBU-0808 discharge circuit, up to 800V, a bit less power output but interesting price.

For high power IPL and long pulse Nd:YAG, KTP, Alexandrite laser systems we offer the NBD-0505-PWM discharge circuit with PWM (pulse-width modulation) technology. The module forms rectangular or quasi-rectangular pulses on a flashlamp.

NBU-1508 Thyristor-Based Discharge Circuit for Laser Systems

Visit the OEM Tech Store

Specifications

Voltage (DC): 24 V
Max Current Consumption: 5 A
Free Discharge Max Output Voltage: 1500 V
Free Discharge Max Output Current: 1000 A
Max. Voltage: 1500V
Max. Discharge Current: 1000A for pulse width < 1ms
Max. Discharge Current: 500A for pulse width > 1ms
Max. Average Power: 2000W
Max. Rep. Rate: 50Hz
Simmer Current: 400mA (200-500 mA on request)
Max Output Simmer Voltage: 300V
Max Output Simmer Power: 100W
Open Circuit Voltage: 1500V
Restrike Rate: A few Hertz
Pulse Energy / Trigger Voltage (External Triggering): ~20mJ / 350V
Pulse Energy / Trigger Voltage (Serial Triggering): ~160mJ / 10kV

Got questions about specs? Use the inquiry form to ask.

Document icon Download Data Sheet Download icon

Features

  • Thyristor-Based Discharge Circuit: The NBU-1508 is designed for the development of solid-state laser systems, providing complete discharge of a small capacitor bank to form short, bell-shaped pulses on a flashlamp.
  • Integrated Components: Includes a thyristor, driver, protective circuits, simmer and trigger circuits, and controls for efficient operation.
  • Application Versatility: Ideal for use in Q-switched Nd:YAG lasers and similar applications, offering both serial and external triggering capabilities.
  • High Voltage Safety: Features clear separation between low and high voltage parts, with 4mm creepage distances and solid insulation tested to 2500VAC for safety compliance.

Applications

  • Q-Switched Nd:YAG Lasers: The NBU-1508 is ideal for use in Q-switched Nd:YAG laser systems, providing efficient discharge capabilities for generating short, bell-shaped pulses.
  • Solid-State Laser Systems Development: Simplifies the development process of solid-state laser systems by offering a comprehensive discharge solution that integrates with existing components.
  • Custom Laser Applications: The module's flexibility allows for customization to meet specific laser application needs, including modifications for serial and external triggering.
  • High-Voltage Applications: Designed with clear separation between low and high voltage parts, making it suitable for applications requiring strict safety standards and high voltage handling.
  • Flashlamp-Based Systems: The NBU-1508 is particularly suited for systems utilizing flashlamps, offering tailored pulse parameters and triggering capabilities.

Frequently Asked Questions

What is the NBU-1508 discharge circuit used for?
The NBU-1508 discharge circuit is designed to simplify the development of solid-state laser systems, particularly for applications such as Q-switched Nd:YAG lasers.
What components are included in the NBU-1508?
The NBU-1508 includes a thyristor, its driver, protective circuits, simmer and trigger circuits, and controls.
What additional components are required for the NBU-1508 to operate?
The NBU-1508 requires a capacitor charging power supply, an external inductor, a capacitor bank, and some minor parts and controls to operate properly.
What are the power input specifications for the NBU-1508?
The NBU-1508 requires a +24V DC input with a current consumption of 5A max, and up to 10A peak.
What are the maximum pulse parameters for the NBU-1508?
The NBU-1508 can handle a maximum voltage of 1500V, a maximum discharge current of 1000A for pulse widths less than 1ms, and 500A for pulse widths greater than 1ms. The maximum average power is 2000W.
What are the simmer parameters for the NBU-1508?
The simmer current is 400mA, adjustable between 200-500mA on request, with a maximum output voltage of 300V, maximum output power of 100W, and an open circuit voltage of 1500V.
What is the recommended external triggering transformer for the NBU-1508?
The recommended external triggering transformer is the ZS1324-24V LUL1(H) by Excelitas Technologies, which can be purchased from Digikey with the part number ZS1324-24VLUL1(H)-ND.

Got more questions? Use the inquiry form to ask the supplier directly.

Similar Products

Request Quote