GB0703904D0 - Control circuit - Google Patents

Control circuit

Info

Publication number
GB0703904D0
GB0703904D0 GBGB0703904.3A GB0703904A GB0703904D0 GB 0703904 D0 GB0703904 D0 GB 0703904D0 GB 0703904 A GB0703904 A GB 0703904A GB 0703904 D0 GB0703904 D0 GB 0703904D0
Authority
GB
United Kingdom
Prior art keywords
devices
sequence
control circuit
controller
motor
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.)
Ceased
Application number
GBGB0703904.3A
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.)
GUNTON BRUCE S
Original Assignee
GUNTON BRUCE S
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 GUNTON BRUCE S filed Critical GUNTON BRUCE S
Priority to GBGB0703904.3A priority Critical patent/GB0703904D0/en
Publication of GB0703904D0 publication Critical patent/GB0703904D0/en
Priority to PCT/GB2008/000581 priority patent/WO2008104744A1/en
Priority to GB0914392A priority patent/GB2459800A/en
Ceased 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
    • H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
    • H02P29/02—Providing protection against overload without automatic interruption of supply
    • H02P29/024—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
    • H02P29/0241—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load the fault being an overvoltage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/26—Testing of individual semiconductor devices
    • G01R31/2607—Circuits therefor
    • G01R31/2621—Circuits therefor for testing field effect transistors, i.e. FET's
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/26—Testing of individual semiconductor devices
    • G01R31/2607—Circuits therefor
    • G01R31/2632—Circuits therefor for testing diodes
    • G01R31/2633—Circuits therefor for testing diodes for measuring switching properties thereof
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00—Testing or monitoring of control systems or parts thereof
    • G05B23/02—Electric testing or monitoring

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

Fig. 1 illustrates a control circuit (10) connected between an electrical supply (12) and a load (14), such as a DC supply (12) and a DC motor (14). The circuit (10) has four arms (16) forming a bridge. Control devices (22) are provided in each arm (16) to allow the current to the motor (14) to be controlled. For example, the polarity of the current can be reversed. This is controlled by a controller (24) which sets the conducting state of the devices (22). The controller is also able to undertake a test sequence by switching individual control devices between a conducting and non-conducting state, while taking an electrical measurement from the point (30), such as by a potential divider. In the event that all of the devices (22) are functioning correctly, the sequence of switching will yield a sequence of results which indicates correct operation of all of the devices (22).
GBGB0703904.3A 2007-03-01 2007-03-01 Control circuit Ceased GB0703904D0 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GBGB0703904.3A GB0703904D0 (en) 2007-03-01 2007-03-01 Control circuit
PCT/GB2008/000581 WO2008104744A1 (en) 2007-03-01 2008-02-20 Control circuit
GB0914392A GB2459800A (en) 2007-03-01 2008-02-20 Control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0703904.3A GB0703904D0 (en) 2007-03-01 2007-03-01 Control circuit

Publications (1)

Publication Number Publication Date
GB0703904D0 true GB0703904D0 (en) 2007-04-11

Family

ID=37965682

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0703904.3A Ceased GB0703904D0 (en) 2007-03-01 2007-03-01 Control circuit
GB0914392A Withdrawn GB2459800A (en) 2007-03-01 2008-02-20 Control circuit

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB0914392A Withdrawn GB2459800A (en) 2007-03-01 2008-02-20 Control circuit

Country Status (2)

Country Link
GB (2) GB0703904D0 (en)
WO (1) WO2008104744A1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10041607B4 (en) * 2000-08-24 2006-04-13 Berger Lahr Gmbh & Co. Kg Electric working device and method for its operation
US7012823B2 (en) * 2004-07-26 2006-03-14 Eaton Corporation Method and control system employing conduction monitors for detecting unbalanced current condition of alternating current phases

Also Published As

Publication number Publication date
WO2008104744A1 (en) 2008-09-04
GB2459800A (en) 2009-11-11
GB0914392D0 (en) 2009-09-30

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)