WO2004003944A3 - Electric circuit for controlling an electromagnetic load - Google Patents

Electric circuit for controlling an electromagnetic load Download PDF

Info

Publication number
WO2004003944A3
WO2004003944A3 PCT/DE2003/001740 DE0301740W WO2004003944A3 WO 2004003944 A3 WO2004003944 A3 WO 2004003944A3 DE 0301740 W DE0301740 W DE 0301740W WO 2004003944 A3 WO2004003944 A3 WO 2004003944A3
Authority
WO
WIPO (PCT)
Prior art keywords
electric circuit
controlling
electromagnetic load
switch
transistor
Prior art date
Application number
PCT/DE2003/001740
Other languages
German (de)
French (fr)
Other versions
WO2004003944A2 (en
Inventor
Klaus Dressler
Rainer Winkler
Bernd Wichert
Original Assignee
Bosch Gmbh Robert
Klaus Dressler
Rainer Winkler
Bernd Wichert
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 Bosch Gmbh Robert, Klaus Dressler, Rainer Winkler, Bernd Wichert filed Critical Bosch Gmbh Robert
Publication of WO2004003944A2 publication Critical patent/WO2004003944A2/en
Publication of WO2004003944A3 publication Critical patent/WO2004003944A3/en

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
    • H03K17/081—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit
    • H03K17/0814—Modifications 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
    • H03K17/08142—Modifications 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 field-effect transistor switches
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
    • H03K2217/0036—Means reducing energy consumption

Landscapes

  • Electronic Switches (AREA)
  • Control Of Electrical Variables (AREA)

Abstract

The invention relates to an electric circuit (10) for controlling an electromagnetic load (11). The electric circuit (10) is provided with a series connection consisting of the electromagnetic load (11) and of a first switch (12), and with a parallel connection, which is configured as a freewheeling circuit while consisting of the electromagnetic load (11) and of a second switch (13). In addition, the electric circuit (10) is provided with a controller (16) for controlling the first switch (12) and the second switch (13). The second switch (13) consists of a transistor (14), which conducts in the direction of the freewheeling circuit, and of a diode (15), which is connected in parallel to the transistor (14) in the direction of the freewheeling circuit. The controller (16) switches the transistor (14) on when the voltage on the diode (15) is less than 0 volts in the non-conducting direction.
PCT/DE2003/001740 2002-06-28 2003-05-28 Electric circuit for controlling an electromagnetic load WO2004003944A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10229025.3 2002-06-28
DE2002129025 DE10229025A1 (en) 2002-06-28 2002-06-28 Electrical circuit for controlling an electromagnetic consumer

Publications (2)

Publication Number Publication Date
WO2004003944A2 WO2004003944A2 (en) 2004-01-08
WO2004003944A3 true WO2004003944A3 (en) 2004-03-11

Family

ID=29795930

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2003/001740 WO2004003944A2 (en) 2002-06-28 2003-05-28 Electric circuit for controlling an electromagnetic load

Country Status (2)

Country Link
DE (1) DE10229025A1 (en)
WO (1) WO2004003944A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10323445B4 (en) * 2003-05-23 2015-04-02 Seuffer gmbH & Co. KG Direct commutation between power components

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4321127A1 (en) * 1993-06-25 1995-01-05 Bosch Gmbh Robert Device for controlling an electromagnetic consumer
US5420532A (en) * 1993-08-20 1995-05-30 Texas Instruments Incorporated Synchronous rectifying circuit
US5936440A (en) * 1996-12-04 1999-08-10 Denso Corporation Inductive load driving apparatus
DE10050287A1 (en) * 2000-10-10 2002-05-08 Conti Temic Microelectronic Protective device for control of clocked electromagnetic consumer such as motor has freewheel device consisting of transistor , reverse battery protection having further transistor and freewheel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4321127A1 (en) * 1993-06-25 1995-01-05 Bosch Gmbh Robert Device for controlling an electromagnetic consumer
US5420532A (en) * 1993-08-20 1995-05-30 Texas Instruments Incorporated Synchronous rectifying circuit
US5936440A (en) * 1996-12-04 1999-08-10 Denso Corporation Inductive load driving apparatus
DE10050287A1 (en) * 2000-10-10 2002-05-08 Conti Temic Microelectronic Protective device for control of clocked electromagnetic consumer such as motor has freewheel device consisting of transistor , reverse battery protection having further transistor and freewheel

Also Published As

Publication number Publication date
DE10229025A1 (en) 2004-03-25
WO2004003944A2 (en) 2004-01-08

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