JPS6423626A - Circuit for correcting tracking of antenna circuit - Google Patents
Circuit for correcting tracking of antenna circuitInfo
- Publication number
- JPS6423626A JPS6423626A JP17902687A JP17902687A JPS6423626A JP S6423626 A JPS6423626 A JP S6423626A JP 17902687 A JP17902687 A JP 17902687A JP 17902687 A JP17902687 A JP 17902687A JP S6423626 A JPS6423626 A JP S6423626A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- channel selecting
- diode
- circuit
- selecting voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Circuits Of Receivers In General (AREA)
Abstract
PURPOSE:To correct the characteristic curve of a synthesized capacity to a channel selecting voltage to a linear state, by connecting a voltage changing circuit to one electrode of a varactor diode facing the other electrode, across which the channel selecting voltage is applied, so that the change of the synthesized capacity becomes smaller in an area where the channel selecting voltage is high. CONSTITUTION:A voltage changing circuit 7 is provided so that the anode potential of a varactor diode 6 in an auxiliary tuning circuit 4 can change in the increasing direction, namely, the potential difference across both sides of the diode 6 can become lower than an actually applied channel selecting voltage when the channel selecting voltage applied across the cathode of the varactor diode 6 changes in the increasing direction in an area where the channel selecting voltage is high. When the channel selecting voltage applied across the cathode of the diode 6 is represented by V1, the variable voltage of the voltage changing circuit 7 is applied across the anode of the diode 6 so that the voltage V1 can become another voltage V1' which is apparently lower than the voltage V1. Therefore, the characteristic A of the synthesized capacity can be corrected to a linear state in the area where the channel selecting voltage is high.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17902687A JPS6423626A (en) | 1987-07-20 | 1987-07-20 | Circuit for correcting tracking of antenna circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17902687A JPS6423626A (en) | 1987-07-20 | 1987-07-20 | Circuit for correcting tracking of antenna circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6423626A true JPS6423626A (en) | 1989-01-26 |
Family
ID=16058814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17902687A Pending JPS6423626A (en) | 1987-07-20 | 1987-07-20 | Circuit for correcting tracking of antenna circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6423626A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03150280A (en) * | 1989-11-02 | 1991-06-26 | Kubota Corp | Multi-colored finishing of cement product |
-
1987
- 1987-07-20 JP JP17902687A patent/JPS6423626A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03150280A (en) * | 1989-11-02 | 1991-06-26 | Kubota Corp | Multi-colored finishing of cement product |
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