High voltage pulse generator

High voltage pulse generator introduction

The high voltage pulse generator delivers rectangular voltages. It is modular and built according to the customer’s requirements. It consists of a chassis in standardized 19’’ racks or it is either integrated in racks or mini racks.

We can also offer sinusoidal pulse generators (DBD generator), mono-channel in OEM format (PCB boards to be wired and to be integrated).

These solutions are available in collaboration with our German partner GBS Elektronik.

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HIGH VOLTAGE PULSE GENERATOR – Pulse Rossendorfer Universal

The pulse generator “Pulse Rossendorfer Universal” (RUP) of the manufacturer GBS Elektronik is designed on the basis of elementary “bricks” which are meant to precisely meet your specifications. We assemble and deliver these generators in a 19 ” rack format chassis for small and medium powers, or in racks and mini racks for stronger powers.

Our high voltage pulse generator is suitable for a wide range of pulse parameters and load impedances. It delivers quasi-rectangular pulses, and its components are adjustable in:

• voltage amplitude,
• frequency,
• pulse width,
• duty cycle,
• etc …

These generators are used in plasma immersion applications, in surface treatment, for the discharge of dielectric barriers, and the generation of corona effects, etc.

MINIPULS OEM SINUSOIDAL HIGH VOLTAGE PULSE GENERATOR

We offer custom sinusoidal pulse generators called “Minipuls” for dielectric barrier discharge (DBD) applications in plasma reactors.

All these generator models are available as OEM version and are interesting to those who wish to integrate this technology into their own devices.

The high-voltage generator creates AC alternating sinusoidal waves at frequencies of about 5 kHz to 20 kHz through cascade transformers. The OEM cards are delivered with a full bridge converter and a circuit board with the transformer stages. The average powers are between 30 W to 700 W, the peak voltages available are 6 kV, 10 kV, 20 kV and 30 kV.

4-QUADRANT AMPLIFIER

A standard pulse generator is insufficient if fast fall times are required and the load is primarily capacitive. The DC supplies discharge by themselves only very slowly because of the capacitive stages at their outputs. Therefore a design in the form of current source and current load is necessary. In this mode, current can flow in the opposite direction and thus reduce the discharge time of the capacitors. A 4-quadrant operation is needed.

Our 4-quadrant high voltage pulse generator is a full bridge class D current source based on IGBT transistors. This pulse generator is ideal for applications like plasma physics.