HF system for high-frequency lamp

摘要

The invention relates to an HF system that comprises an HF device (5), particularly an HF lamp, as well an HF spark-plug or similar HF plasma application, and an HF signal-incoupling device (3) for operating said HF device (5). The HF system comprises an oscillator (7) for generating an HF signal to operate said HF device (5), and said system is characterised in that it comprises means (15) for generating a voltage signal (Uprop) that is proportional to the degree of adaptation of the HF device, on the basis of the HF signal generated by the oscillator (7) and a signal reflected by said HF device. Moreover, the system is characterised in that it comprises a device (27), preferably without a microprocessor, for generating a control signal (UA) for adapting the oscillator (7) output-frequency on the basis of the voltage signal (Uprop) which is proportional to the degree of adaptation of the HF device (5).

主权项

1. An RF system comprising an RF device and an RF signal coupling-in apparatus for operating the RF device, comprising:
an oscillator for generating an RF signal for operating the RF device comprising means for generating a voltage signal proportional to the degree of matching of the RF device on the basis of the RF signal generated by the oscillator and a signal reflected by the RF device, and a device for generating a control signal for matching the output frequency of the oscillator on the basis of the voltage signal proportional to the degree of matching of the RF device.