GB671901A - Improvements in and relating to load compensating networks - Google Patents
Improvements in and relating to load compensating networksInfo
- Publication number
- GB671901A GB671901A GB21549/50A GB2154950A GB671901A GB 671901 A GB671901 A GB 671901A GB 21549/50 A GB21549/50 A GB 21549/50A GB 2154950 A GB2154950 A GB 2154950A GB 671901 A GB671901 A GB 671901A
- Authority
- GB
- United Kingdom
- Prior art keywords
- impedance
- inductor
- load
- tuned circuit
- capacitor
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/02—Details
- H03J3/06—Arrangements for obtaining constant bandwidth or gain throughout tuning range or ranges
- H03J3/08—Arrangements for obtaining constant bandwidth or gain throughout tuning range or ranges by varying a second parameter simultaneously with the tuning, e.g. coupling bandpass filter
Abstract
671,901. Impedance networks. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 31, 1950 [Sept. 17, 1949], No. 21549/50. Drawings to Specification. Class 40 (viii). [Also in Group XL (c)] The effect of variations in the impedance of a load connected across a parallel tuned circuit is minimised by coupling over a capacitor, Fig. 2 (not shown), having a reactance at the resonant frequency equal to the geometric mean of the extreme values which the impedance can take. The tuned circuit may be fed from the last I.F. amplifier of a receiver (see Group XL (c) and the load may be a crystal rectifier. The apparent impedance of the tuned circuit may be increased by connecting the capacitor to a tap on the inductor, Fig. 5 (not shown), or decreased by tapping the feed point down the inductor, Fig. 6 (not shown). The effect of the stray capacity may be reduced by shunting the load with an inductor, Fig. 7 (not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US671901XA | 1949-09-17 | 1949-09-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB671901A true GB671901A (en) | 1952-05-14 |
Family
ID=22074308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21549/50A Expired GB671901A (en) | 1949-09-17 | 1950-08-31 | Improvements in and relating to load compensating networks |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB671901A (en) |
-
1950
- 1950-08-31 GB GB21549/50A patent/GB671901A/en not_active Expired
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