H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
H03J7/02—Automatic frequency control
H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
H03J7/047—Automatic frequency control using an auxiliary signal, e.g. low frequency scanning of the locking range or superimposing a special signal on the input signal
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
H03L7/00—Automatic control of frequency or phase; Synchronisation
H03L7/02—Automatic control of frequency or phase; Synchronisation using a frequency discriminator comprising a passive frequency-determining element
H03L7/04—Automatic control of frequency or phase; Synchronisation using a frequency discriminator comprising a passive frequency-determining element wherein the frequency-determining element comprises distributed inductance and capacitance
Landscapes
Variable-Direction Aerials And Aerial Arrays
(AREA)
Dispositif d'alimentation a decoupage regule contre les variations de tension d'entree et de puissance de sortie, notamment pour recepteur de television