Exchangeable Power Stages for the Modular RF Generator

RF power stages with various output frequencies for the modular radio frequency generator RFG-M

The RF power stage is a power oscillator with a variable output voltage. The operating frequency is given by a built-in resonant circuit. The symmetry of the output voltage can be adjusted by a rotary capacitor on the front panel.

The RF output voltages of the module can be independently biased by different DC voltages. The required voltages can be connected to two BNC sockets at the front panel. To control the DC bias voltages, an external power supply is required. Our signal amplifiers were developed for this purpose.

The control electronics of the power stage are supplied by a special power supply unit. The RF amplitude is controlled by regulating the supply voltage of the output transformers of the power stage. This voltage is provided by the module for controlling the RF amplitude (HV Control).

#General Technical Data for all Power Stages

Characteristics

Exchangeable power stages for the modular radio frequency generator
Adjustment of the symmetry of the output voltages
Control of the DC bias voltages of the output signal

Input

DC inputs: 50 Ω BNC sockets
DC bias voltage (DC Input): ±200 V max.
Capacitance of the DC inputs: 720 nF typ.
Surge protection: 200 V Transil diodes

Output

RF outputs: 50 Ω MHV (H4) sockets
Output frequencies: 0.1–10 MHz
Amplitude of the output signal (each output against ground): 0–500 V typ., higher amplitudes upon request
Required capacitive load per output against ground: 130 pF typ.
(consisting of 60 pF for the capacitance of the load incl. connector and 70 pF for the connection cable)
Regulation of the symmetry: ±20 pF

General

Metallic 19" plug-in unit
Dimensions:
- Width: 54 HP
- Height: 6 U
- Insertion depth: 221 mm
Color:
- Front panel: naturally anodized
- Case: transparently passivated