SELECTOR HAVING CONSTANT CURRENT SOURCES AND COMPENSATING DIODE FOR REDUCING AMBIENT TEMPERATURE EFFECTS ON VARACTOR TUNER

SELECTOR HAVING CONSTANT CURRENT SOURCES AND COMPENSATING DIODE FOR REDUCING AMBIENT TEMPERATURE EFFECTS ON VARACTOR TUNER

A channel selecting apparatus comprising a D.C. voltage source for generating different amounts of D.C. voltage corresponding to the respective channels, a plurality of channel diodes connected to the D.C. voltage, a common compensation diode connected between the diodes and an electronic tuner, the...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: MAKINO S,JA
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
SELECTING RESONANT CIRCUITS
TUNING RESONANT CIRCUITS
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A channel selecting apparatus comprising a D.C. voltage source for generating different amounts of D.C. voltage corresponding to the respective channels, a plurality of channel diodes connected to the D.C. voltage, a common compensation diode connected between the diodes and an electronic tuner, the common compensation diode having the same characteristics as the channel diodes, and a pair of constant current sources for supplying currents to the channel diode and the compensation diode, thereby enabling the variable capacitance diode of the electronic tuner to be supplied with a specific voltage for selecting a given channel exactly as originally generated.