PG modular system
Modular pulse generator for short pulses designed to cover a wide range of applications.
The generator is a modular daisy chain controlled system consisting of a controlling unit PGctrl and at least one generator module PGmod. The system is expandable to up to ten PGmods, each taking up four power units PPU which provide an output power of up to 1MW per PPU.
To operate the PG modular system, a high voltage power supply (HVPS) is required. Optionally, e.g. for load matching, a pulse transformer unit (PTU) can be connected.
Characteristics
- Pulse width: 2μs up to 50μs (depending on output power)
- High repetition rate: up to 2000 Hz
- Pulse characteristics can be optimized for:
- Hard switching: up to 4 MW per PGmod
- Regulated switching (current limiting): depending on power dissipation in the output stage of the generator for example 1.6 MW peak and 3kW average per PGmod for 10μs pulse length)
Example of implementation
Pulse generator PGmodular configurable with up to 4 PG-1600mods
|
Version/circuitry |
Unipolar, current-limited, asymmetrical push-pull circuit Intake of up to four power units (PPUs) per PG-1600mod Current limit adjustable: 1% - 100% |
|
Mains input |
230 V, 50/60 Hz, 4 A |
|
Max. mean input power |
0.75 kW per power module PPU-400, i.e. 3 kW per PG-1600mod (fully extended) |
|
Max. input voltage (pulse supply) |
800 V |
|
Output voltage |
max. +800 V |
|
Max. pulse power |
400 kW per power unit, 1600 kW for one fully extended PG-1600mod |
|
Max. pulse length 1 |
20 μs, depending on input voltage and pulse frequency, e.g. 800 V: 10 μs, 400 V: 20 μs at 2 kHz pulse frequency |
|
Max. frequency |
2 kHz |
|
Voltage droop at intermediate circuit module |
<10 V/μs (at maximal permissible current for the entire pulse length) |
|
Cooling |
Air |
|
Degree of pollution (ICE60664) |
Better than 2 |
| Weight |
PG-1600ctrl: 20 kg, PG-1600mod: 35 kg |
Pulse Transformer Unit PTU-100
|
Version/circuitry |
Matching pulse transformer for PG modular, equipped with up to four PG-1600mod Optional modes of operation: |
|
Max. input voltage primary |
800 V |
|
Max. input voltage DC-offset |
50 kV |
| Max. output voltage secondary | 100 kV |
|
Pulse characteristics |
60 kV, 20 μs 100 kV, 10 μs Reset pulse for pulse transformer with max. -50 V Max. pulse repetition frequency: 2 kHz |
| Resonance frequency | 133 kHz (i.e. maximum rise time 2-3 μs) |
|
Shunt inductance primary |
35 μH +/-25% |
| Shunt inductance secondary | 690 mH +/-25% |
| Cooling | Electrical insulating oil for transformers |
| Net weight | 105 kg |
| Oil filling quantity | 80-90 dm3 |
| Total weight | <200 kg |