WO1999040681A1 - Schaltungsanordnung - Google Patents
SchaltungsanordnungInfo
- Publication number
- WO1999040681A1 WO1999040681A1 PCT/EP1999/000831 EP9900831W WO9940681A1 WO 1999040681 A1 WO1999040681 A1 WO 1999040681A1 EP 9900831 W EP9900831 W EP 9900831W WO 9940681 A1 WO9940681 A1 WO 9940681A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- switch
- circuit
- capacitor
- current
- comparator
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/16—Modifications for eliminating interference voltages or currents
- H03K17/161—Modifications for eliminating interference voltages or currents in field-effect transistor switches
- H03K17/165—Modifications for eliminating interference voltages or currents in field-effect transistor switches by feedback from the output circuit to the control circuit
-
- 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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators
- H02M3/1563—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators without using an external clock
-
- 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
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc 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
- H02M7/217—Conversion of ac power input into dc 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Definitions
- the invention relates to a circuit arrangement according to the preamble of claim 1.
- the resonance circuit consists of a coil and an adaptation capacitor, with which electrical energy is transmitted to the resonance circuit via the coil from a primary loop without contact.
- the alternating current occurring in the resonant circuit is rectified and fed via a diode to a capacitor to be charged, which is connected in parallel to a consumer, in the present case a DC motor.
- An electronic switch is connected in parallel to the capacitor and in the current flow in front of the diode.
- a comparator is provided, at one input of which the capacitor voltage is present and at the other input of which there is a reference voltage; the output of the comparator is connected to the control electrode of the switch.
- the switch When the switch is open, the capacitor is charged until its voltage has reached the reference voltage.
- the output of the comparator assumes the switching state H, which closes the switch. Closing the switch causes the resonant circuit to discharge.
- the switch is opened again when the output of the comparator assumes the value L.
- the object is to create a circuit arrangement with which the current peaks are avoided when the switch is closed.
- Fig. 1 shows a first embodiment of the circuit arrangement, particularly suitable for MOSFET and
- Fig. 2 is a circuit diagram of a second embodiment, particularly suitable for IGBT.
- a capacitor 8 is charged via a choke 6 and a diode 7, to which a load 9, for example a DC motor, is connected in parallel.
- a switch 10 is connected in parallel with the capacitor 8, the diode 7 being connected between the switch 10 and the capacitor 8.
- the voltage across capacitor 8 is fed to the input of a comparator 11, at the other input of which a reference voltage V ref .
- the output of the comparator is connected to the control electrode of switch 10 via a resistor.
- a low-resistance resistor 12 is connected between the switch 10 and ground. Furthermore, a current limiter switch in the form of a transistor 13 is provided. The switch 10 is located in the base-collector circuit of this transistor 13, the emitter-collector path of which is connected between the control electrode of the switch 10 and ground.
- the comparator 11 assumes the switching state H, then the high voltage peaks are avoided by the current-limiting transistor 13, which is driven by the voltage drop across the resistor 12. If a current of, for example, 20 A flows through it in normal operation after the switch 10 is closed, then the switch can consist of a MOSFET that switches peak currents of 25 A. This circuit is sufficient for MOSFETs that have a linear switching behavior.
- a low-resistance resistor 14 is connected between ground and switch 10.
- the output of the comparator 11 is connected to an input of an AND gate 15.
- the other input of the AND gate 15 is connected to the output of a further comparator 16.
- One input of the further comparator 16 is connected between the resistor 14 and the switch 10, in this case an IGBT (Insulated Gate Bipolar Transistor) with a non-linear switching behavior, while the other input of the comparator 16 is connected to I raax . If the voltage across the capacitor 8 exceeds the voltage V ref , the output of the Comparator 11 to the switching state H.
- IGBT Insulated Gate Bipolar Transistor
- the switching state of the comparator is also H, with the result that the output of the gate 15 also assumes the switching state H and thus the switch 10 is closed.
- the occurrence of the high current peaks is avoided in that when the switch 10 is closed, the output of the comparator 16 briefly assumes the switching state L, which switches the switch 10 in the opening direction.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Power Conversion In General (AREA)
- Dc-Dc Converters (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU32528/99A AU3252899A (en) | 1998-02-09 | 1999-02-09 | Circuit configuration |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19805098.4 | 1998-02-09 | ||
DE19805098A DE19805098A1 (de) | 1998-02-09 | 1998-02-09 | Schaltungsanordnung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999040681A1 true WO1999040681A1 (de) | 1999-08-12 |
Family
ID=7857078
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1999/000831 WO1999040681A1 (de) | 1998-02-09 | 1999-02-09 | Schaltungsanordnung |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU3252899A (de) |
DE (1) | DE19805098A1 (de) |
WO (1) | WO1999040681A1 (de) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4330816A (en) * | 1980-01-02 | 1982-05-18 | Fujitsu Fanuc Limited | Overcurrent protection apparatus |
US4849683A (en) * | 1988-12-07 | 1989-07-18 | Motorola, Inc. | Lamp driver circuit with controlled power over a range of power supply voltages |
WO1992017929A1 (en) * | 1991-03-26 | 1992-10-15 | Piper, James, William | Inductive power distribution system |
EP0556663A1 (de) * | 1992-02-07 | 1993-08-25 | Power Integrations, Inc. | Spannungabtastung unter Masse mit einem Spannungseingang zur Regelung des Schwellwertes |
DE4431077C1 (de) * | 1994-09-01 | 1995-08-31 | Ant Nachrichtentech | Überstrombegrenzungseinrichtung |
DE4425901A1 (de) * | 1994-07-21 | 1996-01-25 | Siemens Ag | Regelverstärker zur Steuerung einer hochohmigen Niedersapnnungsquelle |
-
1998
- 1998-02-09 DE DE19805098A patent/DE19805098A1/de not_active Withdrawn
-
1999
- 1999-02-09 AU AU32528/99A patent/AU3252899A/en not_active Abandoned
- 1999-02-09 WO PCT/EP1999/000831 patent/WO1999040681A1/de active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4330816A (en) * | 1980-01-02 | 1982-05-18 | Fujitsu Fanuc Limited | Overcurrent protection apparatus |
US4849683A (en) * | 1988-12-07 | 1989-07-18 | Motorola, Inc. | Lamp driver circuit with controlled power over a range of power supply voltages |
WO1992017929A1 (en) * | 1991-03-26 | 1992-10-15 | Piper, James, William | Inductive power distribution system |
EP0556663A1 (de) * | 1992-02-07 | 1993-08-25 | Power Integrations, Inc. | Spannungabtastung unter Masse mit einem Spannungseingang zur Regelung des Schwellwertes |
DE4425901A1 (de) * | 1994-07-21 | 1996-01-25 | Siemens Ag | Regelverstärker zur Steuerung einer hochohmigen Niedersapnnungsquelle |
DE4431077C1 (de) * | 1994-09-01 | 1995-08-31 | Ant Nachrichtentech | Überstrombegrenzungseinrichtung |
Also Published As
Publication number | Publication date |
---|---|
DE19805098A1 (de) | 1999-08-19 |
AU3252899A (en) | 1999-08-23 |
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