GB1432895A - Driver circuit with inductive load - Google Patents
Driver circuit with inductive loadInfo
- Publication number
- GB1432895A GB1432895A GB807074A GB807074A GB1432895A GB 1432895 A GB1432895 A GB 1432895A GB 807074 A GB807074 A GB 807074A GB 807074 A GB807074 A GB 807074A GB 1432895 A GB1432895 A GB 1432895A
- Authority
- GB
- United Kingdom
- Prior art keywords
- current
- load
- coil
- turns
- switch
- 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
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
- H01F7/1883—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings by steepening leading and trailing edges of magnetisation pulse, e.g. printer drivers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/10—Nuclear fusion reactors
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electronic Switches (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
- Impact Printers (AREA)
- Control Of Voltage And Current In General (AREA)
- Control Of Stepping Motors (AREA)
Abstract
1432895 Driver circuit INTERNATIONAL BUSINESS MACHINES CORP 22 Feb 1974 [16 March 1973] 8070/74 Heading H3T A driver circuit with an inductive load 10, e.g. for use in a print and punch actuator of a computer system, comprises a series connection of a first switch T 1 , an inductive load 10 and a second switch between a pair of supply terminals, an auxiliary circuit D 1 , D 2 coupled to the load 10 and an arrangement 20-30 for controlling the operation of switches T 1 , T 2 so that if the switches T 1 , T 2 are closed current flows through the load and if the switch Ti is subsequently opened, current through the load decays relatively slowly and if the second switch T 2 is subsequently opened, the load current decays relatively quickly. In operation, an input control pulse at 15 turns on T 1 via a single shot device 25 and a predriver 36 and T 2 turns on simultaneously via a predriver 20 so that current in coil 10 builds up. T 1 turns off at the end of the single shot period so that the coil current decays slowly via the now-conducting diode D 1 . T 2 turns off at the end of the input control pulse as to render a diode D 2 conducting and the current in coil 10 is reversed and decays quickly via D 2 . The current in coil 10 can be maintained over a long period by multiple single slot devices or delay circuits or by adding an inductance in series with the coil.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US342109A US3859572A (en) | 1973-03-16 | 1973-03-16 | Magnetic coil driver circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1432895A true GB1432895A (en) | 1976-04-22 |
Family
ID=23340365
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB807074A Expired GB1432895A (en) | 1973-03-16 | 1974-02-22 | Driver circuit with inductive load |
Country Status (7)
Country | Link |
---|---|
US (1) | US3859572A (en) |
JP (1) | JPS5327098B2 (en) |
CA (1) | CA1010947A (en) |
DE (1) | DE2412016A1 (en) |
FR (1) | FR2221762B1 (en) |
GB (1) | GB1432895A (en) |
IT (1) | IT1003393B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2145584A (en) * | 1981-10-26 | 1985-03-27 | Nat Res Dev | Electrically energised vibratory conveyors |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1001996B (en) * | 1973-11-28 | 1976-04-30 | Organizzazione Servizi Calcest | CONCRETE INCORPORATING FULL BODIES OR SPHERICAL CABLE CABLE GLASS SPHERICAL |
DE2915317A1 (en) * | 1979-04-14 | 1980-10-23 | Binder Magnete | CIRCUIT FOR CONTROLLING A PULSE MAGNET |
DE3151242C2 (en) * | 1981-12-21 | 1985-05-02 | Mannesmann AG, 4000 Düsseldorf | Driver circuit for printers, in particular for matrix printers of the needle or hammer type |
JPS60193668A (en) * | 1984-03-16 | 1985-10-02 | Fujitsu Ltd | Hammer controlling system |
US4667117A (en) * | 1984-10-31 | 1987-05-19 | International Business Machines Corporation | Self-timing and self-compensating print wire actuator driver |
JPS6149856A (en) * | 1985-06-24 | 1986-03-11 | Ricoh Co Ltd | Magnet drive circuit for printer |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3206651A (en) * | 1961-11-30 | 1965-09-14 | Honeywell Inc | Circuit controlling flow of current |
-
1973
- 1973-03-16 US US342109A patent/US3859572A/en not_active Expired - Lifetime
-
1974
- 1974-01-15 IT IT19396/74A patent/IT1003393B/en active
- 1974-01-25 JP JP1030374A patent/JPS5327098B2/ja not_active Expired
- 1974-02-13 FR FR7405836A patent/FR2221762B1/fr not_active Expired
- 1974-02-22 GB GB807074A patent/GB1432895A/en not_active Expired
- 1974-02-27 CA CA193,587A patent/CA1010947A/en not_active Expired
- 1974-03-13 DE DE2412016A patent/DE2412016A1/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2145584A (en) * | 1981-10-26 | 1985-03-27 | Nat Res Dev | Electrically energised vibratory conveyors |
Also Published As
Publication number | Publication date |
---|---|
FR2221762B1 (en) | 1976-12-03 |
IT1003393B (en) | 1976-06-10 |
JPS49123232A (en) | 1974-11-26 |
DE2412016A1 (en) | 1974-09-19 |
JPS5327098B2 (en) | 1978-08-05 |
FR2221762A1 (en) | 1974-10-11 |
CA1010947A (en) | 1977-05-24 |
US3859572A (en) | 1975-01-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |