Document Type and Number:
Japanese Patent JPS6421514
Kind Code:
U
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.
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Application Number:
JP9151888U
Publication Date:
February 02, 1989
Filing Date:
July 12, 1988
Export Citation:
International Classes:
H03B5/04; H03J3/04; H03J3/18; H03J5/24; H03J7/08; H03L1/02; (IPC1-7): H03B5/04; H03J7/02; H03L7/00
Domestic Patent References:
| JPS4854850A | 1973-08-01 | |||
| JPS517003U | 1976-01-19 | |||
| JPS4814150A |