GB2236919B - Overload and short-circuit protection circuit - Google Patents

Overload and short-circuit protection circuit

Info

Publication number
GB2236919B
GB2236919B GB8921229A GB8921229A GB2236919B GB 2236919 B GB2236919 B GB 2236919B GB 8921229 A GB8921229 A GB 8921229A GB 8921229 A GB8921229 A GB 8921229A GB 2236919 B GB2236919 B GB 2236919B
Authority
GB
United Kingdom
Prior art keywords
circuit
overload
short
protection circuit
circuit protection
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 - Fee Related
Application number
GB8921229A
Other versions
GB2236919A (en
GB8921229D0 (en
Inventor
Asko Juntunen
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.)
Kone Elevator GmbH
Original Assignee
Kone Elevator GmbH
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 Kone Elevator GmbH filed Critical Kone Elevator GmbH
Publication of GB8921229D0 publication Critical patent/GB8921229D0/en
Publication of GB2236919A publication Critical patent/GB2236919A/en
Application granted granted Critical
Publication of GB2236919B publication Critical patent/GB2236919B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
    • H03K17/082—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit
    • H03K17/0826—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit in bipolar transistor switches
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • H02H3/087—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current for dc applications
GB8921229A 1989-10-04 1989-09-20 Overload and short-circuit protection circuit Expired - Fee Related GB2236919B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8912959A FR2652687B1 (en) 1989-10-04 1989-10-04 METHOD AND DEVICE FOR PROTECTING AGAINST OVERLOAD AND SHORT CIRCUIT OF OUTPUT CONTROL ELEMENTS.

Publications (3)

Publication Number Publication Date
GB8921229D0 GB8921229D0 (en) 1989-11-08
GB2236919A GB2236919A (en) 1991-04-17
GB2236919B true GB2236919B (en) 1994-03-30

Family

ID=9386074

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8921229A Expired - Fee Related GB2236919B (en) 1989-10-04 1989-09-20 Overload and short-circuit protection circuit

Country Status (2)

Country Link
FR (1) FR2652687B1 (en)
GB (1) GB2236919B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0556551A (en) * 1991-08-27 1993-03-05 Pioneer Electron Corp Grounding protection circuit
GB2303005A (en) * 1995-07-01 1997-02-05 Ampy Automation Digilog Controlling electrical supply to a consumer
DE19531899B4 (en) * 1995-08-30 2004-11-25 Robert Bosch Gmbh Electronic setup and operating procedures for this
US6529358B1 (en) 1998-03-10 2003-03-04 Siemens Vdo Automotive Ag Driver protection circuit for preventing damage due to line contact with ground or supply voltage
US10074497B2 (en) 2014-11-06 2018-09-11 Rockwell Automation Technologies, Inc. Operator coil parameter based electromagnetic switching
US9806641B2 (en) 2014-11-06 2017-10-31 Rockwell Automation Technologies, Inc. Detection of electric motor short circuits
US10361051B2 (en) 2014-11-06 2019-07-23 Rockwell Automation Technologies, Inc. Single pole, single current path switching system and method
US9806642B2 (en) 2014-11-06 2017-10-31 Rockwell Automation Technologies, Inc. Modular multiple single-pole electromagnetic switching system and method
US9748873B2 (en) 2014-11-06 2017-08-29 Rockwell Automation Technologies, Inc. 5-pole based wye-delta motor starting system and method
US10393809B2 (en) 2014-11-06 2019-08-27 Rockwell Automation Technologies, Inc. Intelligent timed electromagnetic switching
US9722513B2 (en) 2014-11-06 2017-08-01 Rockwell Automation Technologies, Inc. Torque-based stepwise motor starting
US10141143B2 (en) 2014-11-06 2018-11-27 Rockwell Automation Technologies, Inc. Wear-balanced electromagnetic motor control switching

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1123076A (en) * 1964-12-31 1968-08-14 Automatic Telephone & Elect Improvements in or relating to power supply regulation
GB1402386A (en) * 1972-10-04 1975-08-06 Bodenseewerk Geraetetech Protective circuits
GB1467055A (en) * 1973-02-23 1977-03-16 Indesit Circuit arrangements for protecting and electric power supply line
GB1512073A (en) * 1974-05-08 1978-05-24 Boehringer A Protective systems for switches
US4202023A (en) * 1977-12-07 1980-05-06 Entron, Inc. Overload protector
US4423457A (en) * 1981-02-05 1983-12-27 Siemens Aktiengesellschaft Overload protection circuit for a semiconductor switch
GB2152305A (en) * 1983-12-22 1985-07-31 Bosch Gmbh Robert Circuit arrangement for controlling and monitoring electrical loads
US4544981A (en) * 1984-10-01 1985-10-01 Harris Corporation Short circuit protector/controller circuit
EP0244623A2 (en) * 1986-05-05 1987-11-11 Motorola, Inc. Automatic restart circuit for a switching power supply
US4788474A (en) * 1985-12-04 1988-11-29 Kabushiki Tokai Rika Denki Seisakusho Dimmer apparatus

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3543091A (en) * 1968-12-23 1970-11-24 Ltv Aerospace Corp Solid state circuit breaker
US3599042A (en) * 1969-10-31 1971-08-10 Honeywell Inc Overload protection device for emitter-follower line driver
US4203141A (en) * 1978-03-30 1980-05-13 Wescom, Inc. Low power dissipation series regulator for PCM repeater lines
US4394703A (en) * 1981-12-24 1983-07-19 Gte Automatic Electric Labs Inc. Load protecting arrangement
DE3409058A1 (en) * 1984-03-13 1985-09-26 Telefunken electronic GmbH, 7100 Heilbronn SHORT CIRCUIT AND OVERLOAD PROTECTION CIRCUIT FOR POWER AMPLIFIER TRANSISTORS
DE3432567C1 (en) * 1984-09-05 1985-12-05 Standard Elektrik Lorenz Ag, 7000 Stuttgart Circuit arrangement for short-circuit monitoring

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1123076A (en) * 1964-12-31 1968-08-14 Automatic Telephone & Elect Improvements in or relating to power supply regulation
GB1402386A (en) * 1972-10-04 1975-08-06 Bodenseewerk Geraetetech Protective circuits
GB1467055A (en) * 1973-02-23 1977-03-16 Indesit Circuit arrangements for protecting and electric power supply line
GB1512073A (en) * 1974-05-08 1978-05-24 Boehringer A Protective systems for switches
US4202023A (en) * 1977-12-07 1980-05-06 Entron, Inc. Overload protector
US4423457A (en) * 1981-02-05 1983-12-27 Siemens Aktiengesellschaft Overload protection circuit for a semiconductor switch
GB2152305A (en) * 1983-12-22 1985-07-31 Bosch Gmbh Robert Circuit arrangement for controlling and monitoring electrical loads
US4544981A (en) * 1984-10-01 1985-10-01 Harris Corporation Short circuit protector/controller circuit
US4788474A (en) * 1985-12-04 1988-11-29 Kabushiki Tokai Rika Denki Seisakusho Dimmer apparatus
EP0244623A2 (en) * 1986-05-05 1987-11-11 Motorola, Inc. Automatic restart circuit for a switching power supply

Also Published As

Publication number Publication date
FR2652687B1 (en) 1995-07-07
GB2236919A (en) 1991-04-17
FR2652687A1 (en) 1991-04-05
GB8921229D0 (en) 1989-11-08

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Legal Events

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

Effective date: 19990920