GB1402874A - Apparatus for obtaining a control signal from an inverter - Google Patents

Apparatus for obtaining a control signal from an inverter

Info

Publication number
GB1402874A
GB1402874A GB3136172A GB3136172A GB1402874A GB 1402874 A GB1402874 A GB 1402874A GB 3136172 A GB3136172 A GB 3136172A GB 3136172 A GB3136172 A GB 3136172A GB 1402874 A GB1402874 A GB 1402874A
Authority
GB
United Kingdom
Prior art keywords
devices
inverter
control signal
july
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
GB3136172A
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.)
SCRAGG POWER DRIVES Ltd
Original Assignee
SCRAGG POWER DRIVES Ltd
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 SCRAGG POWER DRIVES Ltd filed Critical SCRAGG POWER DRIVES Ltd
Priority to GB3136172A priority Critical patent/GB1402874A/en
Priority to IL42643A priority patent/IL42643A0/en
Priority to DE19732333978 priority patent/DE2333978A1/en
Priority to JP48075318A priority patent/JPS4944224A/ja
Publication of GB1402874A publication Critical patent/GB1402874A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
    • 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
    • H02M7/53875—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 with analogue control of three-phase output

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

1402874 Inverting SCRAGG POWER DRIVES Ltd 2 July 1973 [5 July 1972] 31361/72 Heading H2F In an inverter comprising a bridge of switching devices T1 ... T6 having inverse diodes D4 ... D6, current measuring means S1 is included in the path of current flowing solely in the switching devices. Device S1 develops a unidirectional signal voltage stated to be proportional to the RMS value of the fundamental component of load current. Devices S1, S2 may be resistors or inductors co-operating with Hall effect devices. In a speed control system for a squirrel cage induction motor, the voltage across impedance S1 may provide the control signal for the feedback loop. Thyristors may replace transistors T1 ... T6 and may be pulse-width modulated.
GB3136172A 1972-07-05 1972-07-05 Apparatus for obtaining a control signal from an inverter Expired GB1402874A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB3136172A GB1402874A (en) 1972-07-05 1972-07-05 Apparatus for obtaining a control signal from an inverter
IL42643A IL42643A0 (en) 1972-07-05 1973-07-02 Method of and apparatus for obtaining a control signal from an inverter
DE19732333978 DE2333978A1 (en) 1972-07-05 1973-07-04 METHOD AND DEVICE FOR GENERATING A DC CONTROL SIGNAL FROM AN INVERTER
JP48075318A JPS4944224A (en) 1972-07-05 1973-07-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3136172A GB1402874A (en) 1972-07-05 1972-07-05 Apparatus for obtaining a control signal from an inverter

Publications (1)

Publication Number Publication Date
GB1402874A true GB1402874A (en) 1975-08-13

Family

ID=10321964

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3136172A Expired GB1402874A (en) 1972-07-05 1972-07-05 Apparatus for obtaining a control signal from an inverter

Country Status (4)

Country Link
JP (1) JPS4944224A (en)
DE (1) DE2333978A1 (en)
GB (1) GB1402874A (en)
IL (1) IL42643A0 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4167776A (en) * 1976-07-19 1979-09-11 Danfoss A/S Inverter circuit
US4755732A (en) * 1986-10-16 1988-07-05 Melec Co., Ltd. Microangle drive system for stepping motor and microangle drive circuit therefor
US6949945B2 (en) 2001-04-19 2005-09-27 BSH Bosch und Siemens Hausgeräte Method and apparatus for measurement of the winding temperature of a drive motor

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH644477A5 (en) * 1981-09-17 1984-07-31 Spincor Sa POWER SUPPLY CIRCUIT FOR A MULTI-PHASE ASYNCHRONOUS ELECTRIC MACHINE.
DE3307623C2 (en) * 1983-03-04 1986-06-05 Lenze GmbH & Co KG Aerzen, 3258 Aerzen Method and circuit arrangement for regulating an AC or three-phase motor
DE19711414A1 (en) * 1997-03-19 1998-09-24 Philips Patentverwaltung Method and circuit arrangement for regulating an engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4167776A (en) * 1976-07-19 1979-09-11 Danfoss A/S Inverter circuit
US4755732A (en) * 1986-10-16 1988-07-05 Melec Co., Ltd. Microangle drive system for stepping motor and microangle drive circuit therefor
US6949945B2 (en) 2001-04-19 2005-09-27 BSH Bosch und Siemens Hausgeräte Method and apparatus for measurement of the winding temperature of a drive motor

Also Published As

Publication number Publication date
JPS4944224A (en) 1974-04-25
DE2333978A1 (en) 1974-01-31
IL42643A0 (en) 1973-10-25

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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