GB1033625A - Improvements in or relating to attenuating networks - Google Patents
Improvements in or relating to attenuating networksInfo
- Publication number
- GB1033625A GB1033625A GB22985/64A GB2298564A GB1033625A GB 1033625 A GB1033625 A GB 1033625A GB 22985/64 A GB22985/64 A GB 22985/64A GB 2298564 A GB2298564 A GB 2298564A GB 1033625 A GB1033625 A GB 1033625A
- Authority
- GB
- United Kingdom
- Prior art keywords
- network
- shunt
- resistance
- condenser
- output end
- 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
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/24—Frequency- independent attenuators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/38—Multiple capacitors, i.e. structural combinations of fixed capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
1,033,625. Attenuating networks. MARCONI INSTRUMENTS Ltd. Jan. 4, 1965 [June 3, 1964], No. 22985/64. Heading H3U. An attentuating network comprises at least two sections in cascade, each including a series resistance, a condenser in parallel with said resistance and two shunt condensers, one on each side of said resistance and one of which may be common with a shunt condenser of the next section; and a shunt resistance across the output end of the last of the sections, the elements in the network being dimensioned so as substantially to satisfy the following equations, namely:- where C1 is the value of each shunt condenser other than the one nearest the input end and the one nearest the output end of the network; C2 is the value of each condenser in parallel with a series resistance; Ct is the value of the shunt condenser nearest the output end of the network; Rr is the value of the rth series resistance counting from the input end of the network; N is the required total attenuation (in times) of the network and is equal to n<SP>r</SP>, where n is the attentuation of each section (including any effective loading); Rt is the value of the shunt resistance across the output end of the whole network; and R T is the total input resistance of the network. The network is particularly suitable for use with oscilloscopes and provides a high impedance and high attenuation ratio, the network being effective over a very wide frequency range and being substantially unaffected by the frequency. In a two-section embodiment of the invention, Fig. 2, having input terminals 1 and output terminals 2, R1 and R2 are two series resistances, C2 are the parallel-connected condensers and may be adjustable, C1 is the shunt condenser common to both sections, Co is the shunt condenser at the input end, Ct the shunt condenser at the output end and Rt the shunt resistance at the output end. S is an earthed electrostatic screen between the resistances R1 and R2. Since there are two sections, r = 2 and n = #N. A multiple section network is described with reference to Fig. 3 (not shown).
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB22985/64A GB1033625A (en) | 1964-06-03 | 1964-06-03 | Improvements in or relating to attenuating networks |
| US435846A US3328678A (en) | 1964-06-03 | 1965-03-01 | Multi-section attenuating networks |
| DE19651516131 DE1516131B1 (en) | 1964-06-03 | 1965-06-02 | Voltage divider with at least two stages connected in cascade |
| FR19452A FR1442638A (en) | 1964-06-03 | 1965-06-03 | High impedance attenuation networks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB22985/64A GB1033625A (en) | 1964-06-03 | 1964-06-03 | Improvements in or relating to attenuating networks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1033625A true GB1033625A (en) | 1966-06-22 |
Family
ID=10188235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB22985/64A Expired GB1033625A (en) | 1964-06-03 | 1964-06-03 | Improvements in or relating to attenuating networks |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3328678A (en) |
| DE (1) | DE1516131B1 (en) |
| GB (1) | GB1033625A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3543141A (en) * | 1967-06-19 | 1970-11-24 | Circle F Ind Inc | Continuously variable,full-wave,phase-controlled power circuit |
| US3564277A (en) * | 1969-08-25 | 1971-02-16 | Sperry Rand Corp | Coaxial line reed switch fast rise signal generator with attenuation means forming outer section of the line |
| DE3341109A1 (en) * | 1983-11-12 | 1985-05-30 | Peddinghaus, Carl Ullrich, Dr., 5600 Wuppertal | DEVICE FOR THROWING PROFILE STEEL RODS |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB570966A (en) * | 1943-08-16 | 1945-07-31 | Eric Lawrence Casling White | Improvements in or relating to electric potential-dividing arrangements |
| US3267355A (en) * | 1963-12-10 | 1966-08-16 | Dranetz Engineering Lab Inc | Multi-range constant current source |
-
1964
- 1964-06-03 GB GB22985/64A patent/GB1033625A/en not_active Expired
-
1965
- 1965-03-01 US US435846A patent/US3328678A/en not_active Expired - Lifetime
- 1965-06-02 DE DE19651516131 patent/DE1516131B1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US3328678A (en) | 1967-06-27 |
| DE1516131B1 (en) | 1970-03-19 |
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