GB1023084A - Improvements in and relating to the programmed multiplication of electrical analogue voltages - Google Patents
Improvements in and relating to the programmed multiplication of electrical analogue voltagesInfo
- Publication number
- GB1023084A GB1023084A GB34655/64A GB3465564A GB1023084A GB 1023084 A GB1023084 A GB 1023084A GB 34655/64 A GB34655/64 A GB 34655/64A GB 3465564 A GB3465564 A GB 3465564A GB 1023084 A GB1023084 A GB 1023084A
- Authority
- GB
- United Kingdom
- Prior art keywords
- voltages
- square
- energized
- divider
- analogue
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06J—HYBRID COMPUTING ARRANGEMENTS
- G06J1/00—Hybrid computing arrangements
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06G—ANALOGUE COMPUTERS
- G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
- G06G7/06—Programming arrangements, e.g. plugboard for interconnecting functional units of the computer; Digital programming
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06G—ANALOGUE COMPUTERS
- G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
- G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
- G06G7/16—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division
- G06G7/161—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division with pulse modulation, e.g. modulation of amplitude, width, frequency, phase or form
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/68—Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/72—Gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/15—Arrangements in which pulses are delivered at different times at several outputs, i.e. pulse distributors
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Software Systems (AREA)
- Automation & Control Theory (AREA)
- Evolutionary Computation (AREA)
- Fuzzy Systems (AREA)
- Nonlinear Science (AREA)
- Networks Using Active Elements (AREA)
- Ac-Ac Conversion (AREA)
Abstract
1,023,084. Electric analogue calculating. CONTRAVES A.G. Aug. 25, 1964 [Sept. 3, 1963], No. 34655/64. Heading G4G. A circuit for multiplying two electric analogue voltages U x U y from sources G x , G y comprises (Fig. 1) chopper modulator stages M x , M y utilizing transistors T mx , T my whose bases are energized with square-wave voltages V sx , V s y mutually phase offset by #/2; from source Qs; 2 in which a multivibrator operating at four times the required frequency energizes a binary divider to produce mutually inverted squarewaves at double that frequency to energize two further binary dividers producing the required waveforms. The modulated outputs of M x , My are added at transistor T a limited by Zener divider Z, and applied to photo-electrically (or thermally or magnetically) controlled resistor P, responsive to a multiplier variable by an external programme, to develop a variable amplitude composite waveform which is amplified at V and applied to demodulators Dx, Dy containing switching transistors Td x , Td y base energized by square-wave voltages U sx , U sy . The demodulated outputs are smoothed by R.C. filters to analogue voltages pU x , pUy
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1085163A CH401543A (en) | 1963-09-03 | 1963-09-03 | Circuit arrangement for changing two electrical analog quantities according to a program which is identical for both quantities |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1023084A true GB1023084A (en) | 1966-03-16 |
Family
ID=4367491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34655/64A Expired GB1023084A (en) | 1963-09-03 | 1964-08-25 | Improvements in and relating to the programmed multiplication of electrical analogue voltages |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3327231A (en) |
| CH (1) | CH401543A (en) |
| GB (1) | GB1023084A (en) |
| NL (1) | NL6408405A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4090145A (en) * | 1969-03-24 | 1978-05-16 | Webb Joseph A | Digital quadrature demodulator |
| US3679910A (en) * | 1971-04-13 | 1972-07-25 | Massachusetts Inst Technology | Touch control switch |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2976363A (en) * | 1957-12-30 | 1961-03-21 | Gen Electric | Modulation of selected phases of carriers for simultaneous transmission through single delay means |
| US3120758A (en) * | 1960-06-01 | 1964-02-11 | Michael J Craddock | Electrical testing equipment |
-
1963
- 1963-09-03 CH CH1085163A patent/CH401543A/en unknown
-
1964
- 1964-07-22 NL NL6408405A patent/NL6408405A/xx unknown
- 1964-08-25 GB GB34655/64A patent/GB1023084A/en not_active Expired
- 1964-09-03 US US394365A patent/US3327231A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US3327231A (en) | 1967-06-20 |
| CH401543A (en) | 1965-10-31 |
| NL6408405A (en) | 1965-03-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES417457A1 (en) | Four-quadrant multiplier circuit | |
| GB1119003A (en) | Electric analogue signal multiplier | |
| US3092736A (en) | Plural signal frequency detector able to continuously distinguish whether frequency difference is positive or negative | |
| GB982877A (en) | Frequency modulated crystal controlled oscillator | |
| GB1186132A (en) | Electronic Multipliers | |
| GB884911A (en) | Analogue multiplier | |
| GB1111760A (en) | Voltage to time-interval converter | |
| GB1408018A (en) | Electronic multiplier and or divider | |
| GB1021218A (en) | Demodulator circuit | |
| GB1023084A (en) | Improvements in and relating to the programmed multiplication of electrical analogue voltages | |
| GB1187491A (en) | Improvements in Correlators | |
| GB1090524A (en) | Voltage-to-frequency conversion system | |
| GB1362995A (en) | Angle modulation detector | |
| GB1450964A (en) | Circuit arrangement for reverse-biassing a variable capacitance diode | |
| GB1406438A (en) | Oscillators | |
| US3375508A (en) | Means for converting a synchro shaft angle to a linear direct current signal | |
| GB968405A (en) | Improvements relating to electric power supply circuits | |
| US3075090A (en) | Transistor means for obtaining the product of two inputs | |
| GB1084483A (en) | Period modulation circuit | |
| GB1062675A (en) | Improvements in or relating to pulse converters | |
| GB956101A (en) | Frequency modulated oscillator | |
| GB1097195A (en) | Analog function generator | |
| GB1430822A (en) | High speed signal integrator circuit | |
| SU420091A1 (en) | POWER CURRENT AMPLIFIER 5FUND ^^ & ^ | |
| GB1519092A (en) | Voltage controlled oscillator circuit |