Title:
FREQUENCY DRIFT COMPENSATING CIRCUIT
Document Type and Number:
Japanese Patent JPS5685928
Kind Code:
A
Abstract:
A circuit is provided for frequency drift compensation of a tuning diode in tunable RF-circuits, and comprises a temperature-responsive voltage divider coupled between an independent voltage supply source and a reference potential, the tuning diode being coupled to a tap of the voltage divider. In this circuit the separate tuning voltage source is not loaded down and may thus produce a tuning voltage which is independent of the variation of the voltage from the temperature compensation portion of the circuit.
Inventors:
KAARUUHAITSU KUTSUPUFUAA
Application Number:
JP15712180A
Publication Date:
July 13, 1981
Filing Date:
November 10, 1980
Export Citation:
Assignee:
PHILIPS NV
International Classes:
H03B5/04; H03J3/04; H03J3/18; H03J7/08; H03J5/24; H03L1/02; (IPC1-7): H03J7/02; H03L7/00
Domestic Patent References:
| JPS4854850A | 1973-08-01 |