GB1477353A - Function generator - Google Patents
Function generatorInfo
- Publication number
- GB1477353A GB1477353A GB3709874A GB3709874A GB1477353A GB 1477353 A GB1477353 A GB 1477353A GB 3709874 A GB3709874 A GB 3709874A GB 3709874 A GB3709874 A GB 3709874A GB 1477353 A GB1477353 A GB 1477353A
- Authority
- GB
- United Kingdom
- Prior art keywords
- network
- input
- voltage
- switching
- switches
- 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
- 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
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/07—Programme control other than numerical control, i.e. in sequence controllers or logic controllers where the programme is defined in the fixed connection of electrical elements, e.g. potentiometers, counters, transistors
- G05B19/075—Programme control other than numerical control, i.e. in sequence controllers or logic controllers where the programme is defined in the fixed connection of electrical elements, e.g. potentiometers, counters, transistors for delivering a step function, a slope or a continuous function
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mathematical Physics (AREA)
- Dc-Dc Converters (AREA)
- Analogue/Digital Conversion (AREA)
- Ac-Ac Conversion (AREA)
Abstract
1477353 Waveform generators VEREINIGTE FLUGTECHNISCHE WERKE-FOKKER GmbH 23 Aug 1974 [25 Aug 1973] 37098/74 Heading H3H A waveform generator comprises a resistance network R 1 ... R n and a control device 13, 14, 15 for switching the input to the output in stepped sequence through the network, and means Sl for switching the output end of the network to the input end during the switching period of the last switch of the network. The input voltage is simultaneously applied to a storage capacitor 11 and the stored voltage applied through an impedance transformer 12 to the low end of the network so that, during the switching time of Sl, no voltage exists across the network. According to how the input voltage is varied thereafter, either an increase or decrease in output voltage can be produced with a renewed run of the switches S 1 ... S n . The resistances and the switching times may be equal or unequal depending upon the waveform required. If the switches are run in both forward and backward sequence, the upper end of the network also requires a voltage store and means to connect the input voltage alternately to the two stores. A modification for finer stepping is described (Fig. 2, not shown) in which every other switch is connected in common through an impedance transformer to the upper end of a second network similar to the one shown in Fig. 1. The lower ends of the two networks are also connected by an impedance transformer. In this embodiment, the total number of steps results from multiplication of the steps of the first network by the second. The embodiment of Fig. 3 comprises additional resistances RZ 1 ... RZ n switched by two additional switches K 1 , K 2 in such a manner than the output curve can be modified, e.g. from linear to sinusoidal. A control circuit is described (Fig. 4, not shown). in which a ditital input signal is fed to a digital store and to a D/A converter which provides an input for the network. The lower end of the network is fed through a second store and a second D/A converter. The two stores and the switches are connected to a common control unit.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19732343092 DE2343092C3 (en) | 1973-08-25 | 1973-08-25 | Programmable function generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1477353A true GB1477353A (en) | 1977-06-22 |
Family
ID=5890781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3709874A Expired GB1477353A (en) | 1973-08-25 | 1974-08-23 | Function generator |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE2343092C3 (en) |
| FR (1) | FR2241830B3 (en) |
| GB (1) | GB1477353A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2945494A1 (en) * | 1978-11-14 | 1980-05-29 | Philips Nv | DIVIDER ARRANGEMENT WITH A CASCADE CIRCUIT OF A STEPPAR DIVIDER AND A REGULATABLE VOLTAGE DIVIDER AND WITH A CONTROL CIRCUIT FOR REGULATING THE SAME |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5313667A (en) * | 1976-07-23 | 1978-02-07 | Yoshino Kogyosho Co Ltd | Method of controlling parison thickness and circuit for generating thickness control signal for executing same |
| JPS563092A (en) * | 1979-06-20 | 1981-01-13 | Maruzen Sewing Machine | Zigzag sewing machine |
| DE3201532C2 (en) * | 1982-01-20 | 1986-09-25 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Ripple control receiver with a microcomputer |
| US4543560A (en) * | 1984-02-17 | 1985-09-24 | Analog Devices, Incorporated | Two-stage high resolution digital-to-analog converter |
| CN107846206A (en) * | 2017-11-08 | 2018-03-27 | 昆山龙腾光电有限公司 | A kind of Waveform generating circuit |
-
1973
- 1973-08-25 DE DE19732343092 patent/DE2343092C3/en not_active Expired
-
1974
- 1974-08-23 GB GB3709874A patent/GB1477353A/en not_active Expired
- 1974-08-26 FR FR7429117A patent/FR2241830B3/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2945494A1 (en) * | 1978-11-14 | 1980-05-29 | Philips Nv | DIVIDER ARRANGEMENT WITH A CASCADE CIRCUIT OF A STEPPAR DIVIDER AND A REGULATABLE VOLTAGE DIVIDER AND WITH A CONTROL CIRCUIT FOR REGULATING THE SAME |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2241830B3 (en) | 1977-06-17 |
| FR2241830A1 (en) | 1975-03-21 |
| DE2343092A1 (en) | 1975-03-20 |
| DE2343092B2 (en) | 1979-08-30 |
| DE2343092C3 (en) | 1980-06-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |