GB995902A - Improvements in or relating to switching devices for impedances having inductive characteristics - Google Patents

Improvements in or relating to switching devices for impedances having inductive characteristics

Info

Publication number
GB995902A
GB995902A GB284262A GB284262A GB995902A GB 995902 A GB995902 A GB 995902A GB 284262 A GB284262 A GB 284262A GB 284262 A GB284262 A GB 284262A GB 995902 A GB995902 A GB 995902A
Authority
GB
United Kingdom
Prior art keywords
inductor
load
transistors
current
switching devices
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
Application number
GB284262A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Electrologica BV
Original Assignee
Electrologica BV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Electrologica BV filed Critical Electrologica BV
Publication of GB995902A publication Critical patent/GB995902A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/26Driving record carriers by members acting directly or indirectly thereon
    • G11B15/28Driving record carriers by members acting directly or indirectly thereon through rollers driving by frictional contact with the record carrier, e.g. capstan; Multiple arrangements of capstans or drums coupled to means for controlling the speed of the drive; Multiple capstan systems alternately engageable with record carrier to provide reversal
    • G11B15/29Driving record carriers by members acting directly or indirectly thereon through rollers driving by frictional contact with the record carrier, e.g. capstan; Multiple arrangements of capstans or drums coupled to means for controlling the speed of the drive; Multiple capstan systems alternately engageable with record carrier to provide reversal through pinch-rollers or tape rolls
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B38/00Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/02Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring flatness or profile of strips
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K13/00Conveying record carriers from one station to another, e.g. from stack to punching mechanism
    • G06K13/18Conveying record carriers from one station to another, e.g. from stack to punching mechanism the record carrier being longitudinally extended, e.g. punched tape
    • G06K13/20Details
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00Magnets
    • H01F7/06Electromagnets; Actuators including electromagnets
    • H01F7/08Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
    • H01F7/1877Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings controlling a plurality of loads
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K17/00Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/04Modifications for accelerating switching
    • H03K17/041Modifications for accelerating switching without feedback from the output circuit to the control circuit
    • H03K17/04113Modifications for accelerating switching without feedback from the output circuit to the control circuit in bipolar transistor switches
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K17/00Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/08Modifications for protecting switching circuit against overcurrent or overvoltage
    • H03K17/081Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit
    • H03K17/0814Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the output circuit
    • H03K17/08146Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the output circuit in bipolar transistor switches
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K17/00Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/64Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors having inductive loads
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L17/00Apparatus or local circuits for transmitting or receiving codes wherein each character is represented by the same number of equal-length code elements, e.g. Baudot code
    • H04L17/02Apparatus or circuits at the transmitting end
    • H04L17/04Apparatus or circuits at the transmitting end with keyboard co-operating with code-bars
    • H04L17/08Apparatus or circuits at the transmitting end with keyboard co-operating with code-bars combined with perforating apparatus
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L17/00Apparatus or local circuits for transmitting or receiving codes wherein each character is represented by the same number of equal-length code elements, e.g. Baudot code
    • H04L17/16Apparatus or circuits at the receiving end
    • H04L17/20Apparatus or circuits at the receiving end using perforating recorders

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
GB284262A 1961-01-25 1962-01-25 Improvements in or relating to switching devices for impedances having inductive characteristics Expired GB995902A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL260430 1961-01-25

Publications (1)

Publication Number Publication Date
GB995902A true GB995902A (en) 1965-06-23

Family

ID=19752831

Family Applications (1)

Application Number Title Priority Date Filing Date
GB284262A Expired GB995902A (en) 1961-01-25 1962-01-25 Improvements in or relating to switching devices for impedances having inductive characteristics

Country Status (4)

Country Link
BE (1) BE613027A (nl)
CH (1) CH393424A (nl)
GB (1) GB995902A (nl)
NL (2) NL125738C (nl)

Also Published As

Publication number Publication date
CH393424A (de) 1965-06-15
NL260430A (nl)
BE613027A (nl) 1962-05-16
NL125738C (nl)

Similar Documents

Publication Publication Date Title
US3117270A (en) Regulated power supply device
GB1267242A (nl)
GB1029195A (en) Automatic paralleling system for alternating current generators
GB1321410A (en) Solid-state relays
GB1021811A (en) Regulation of power supply systems
GB1031780A (en) Switching circuit for controlling the effective power applied to a load from a source of alternating supply voltage
GB999375A (en) Multistage transistor amplifier
ES365686A1 (es) Dispositivo ondulador para transformar una corriente conti-nua en corriente alterna.
US3566253A (en) Switching type regulators having alternate load current paths
GB980186A (en) Voltage regulator circuit
GB993846A (en) Electronic trigger-pulse-generating circuit arrangement
GB1020590A (en) Improvements relating to turn-off arrangements for direct current switching circuits
GB1052861A (nl)
GB1015694A (en) Semiconductor switching circuit
US2987681A (en) Regulated inverter
GB945632A (en) Electronic gating device
GB985008A (en) Static switching circuits
US3064140A (en) Current regulating circuit for switching memory elements and the like
GB950337A (en) Improvements in or relating to switching apparatus for inductive circuits
GB1237689A (en) Battery charging systems
GB1119957A (en) Improvements in or relating to operating circuit arrangements for electromagnetic devices
US3561208A (en) Amplitude stabilizer for timepiece
GB1044906A (en) Oscillating back electromotive force unit
GB1307022A (en) Arrangement for the operation of a bidirectional thyristor
GB1070072A (en) Improvements in and relating to electric circuits including scrs