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GB1533680A - Method of and circuit arrangement providing intrinsically safe operation of an electric drive - Google Patents

Method of and circuit arrangement providing intrinsically safe operation of an electric drive

Info

Publication number
GB1533680A
GB1533680A GB499077A GB499077A GB1533680A GB 1533680 A GB1533680 A GB 1533680A GB 499077 A GB499077 A GB 499077A GB 499077 A GB499077 A GB 499077A GB 1533680 A GB1533680 A GB 1533680A
Authority
GB
United Kingdom
Prior art keywords
intrinsically safe
inverter
supply
circuit arrangement
electric drive
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
GB499077A
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.)
H Maihak AG
Original Assignee
H Maihak AG
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 H Maihak AG filed Critical H Maihak AG
Priority to GB499077A priority Critical patent/GB1533680A/en
Publication of GB1533680A publication Critical patent/GB1533680A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
    • H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
    • H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/5387—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
    • H02M7/53871—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

1533680 Inverters H MAIHAK AG 7 Feb 1977 04990/77 Heading H2F A transistor inverter 10 feeding a flameproof and/or explosion proof A.C. motor 5 is made intrinsically safe by the connection of two diodes 8, 9, across the inverter input which is connected to an intrinsically safe supply, the diodes being poled so as not to conduct the D.C. supply to the inverter, but to pass currents fed from energy stored in the motor inductance so that if any conductors are broken no dangerous sparking will result. A diode 7 protects against an inversely poled supply. The inverter and motor may be encapsulated in synthetic resin to form a single unit.
GB499077A 1977-02-07 1977-02-07 Method of and circuit arrangement providing intrinsically safe operation of an electric drive Expired GB1533680A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB499077A GB1533680A (en) 1977-02-07 1977-02-07 Method of and circuit arrangement providing intrinsically safe operation of an electric drive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB499077A GB1533680A (en) 1977-02-07 1977-02-07 Method of and circuit arrangement providing intrinsically safe operation of an electric drive

Publications (1)

Publication Number Publication Date
GB1533680A true GB1533680A (en) 1978-11-29

Family

ID=9787656

Family Applications (1)

Application Number Title Priority Date Filing Date
GB499077A Expired GB1533680A (en) 1977-02-07 1977-02-07 Method of and circuit arrangement providing intrinsically safe operation of an electric drive

Country Status (1)

Country Link
GB (1) GB1533680A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3696959A1 (en) * 2019-02-14 2020-08-19 Eaton Intelligent Power Limited Hazardous environment electrical feedback barrier device, assembly, system and method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3696959A1 (en) * 2019-02-14 2020-08-19 Eaton Intelligent Power Limited Hazardous environment electrical feedback barrier device, assembly, system and method
CN111564833A (en) * 2019-02-14 2020-08-21 伊顿智能动力有限公司 Hazardous environment electrical feedback barrier devices, assemblies, systems and methods
EP4250504A3 (en) * 2019-02-14 2023-12-13 Eaton Intelligent Power Limited Hazardous environment electrical feedback barrier device, assembly, system and method
US11978980B2 (en) 2019-02-14 2024-05-07 Eaton Intelligent Power Limited Hazardous environment electrical feedback barrier device, assembly, system and method

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee