MONITORING CIRCUIT FOR CONTROLLED WITH VOLTAGE GENERATOR

The control circuit is used in frequency synthesizers, communication and gauging engineering. It has a simplified design and enhanced reliability, keeping a low level of noise emission in the zone closest to the desired signal within a broad frequency range. The control circuit contains frequency-ge...

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Bibliographische Detailangaben
Hauptverfasser:	TRISHKAN, TATJANA S, RUSKOVA, TSONKA T, RUSKOV, IVAN J
Format:	Patent
Sprache:	eng
Schlagworte:	AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES BASIC ELECTRONIC CIRCUITRY ELECTRICITY GENERATION OF NOISE BY SUCH CIRCUITS GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING,BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN ANON-SWITCHING MANNER SELECTING RESONANT CIRCUITS TUNING RESONANT CIRCUITS
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Beschreibung
Zusammenfassung:	The control circuit is used in frequency synthesizers, communication and gauging engineering. It has a simplified design and enhanced reliability, keeping a low level of noise emission in the zone closest to the desired signal within a broad frequency range. The control circuit contains frequency-generating circuits for fine (1) and coarse (2) tuning of frequency, which are included in the frequency determining range of the generator (3). The phase-comparative circuit (4) of the phase automatic frequency adjustment system is connected to the frequency generating circuit (1) for fine-tuning and to a filter group (5). The filter group output (4) is connected to a frequency generating circuit (2) for coarse tuning. The filter group (5) contains a connected in parallel in series resistor (6) and two capacitors (7 and 8), connected to its input in sequence.