EP1344306A2 - Leistungselektronische schaltung - Google Patents
Leistungselektronische schaltungInfo
- Publication number
- EP1344306A2 EP1344306A2 EP01995550A EP01995550A EP1344306A2 EP 1344306 A2 EP1344306 A2 EP 1344306A2 EP 01995550 A EP01995550 A EP 01995550A EP 01995550 A EP01995550 A EP 01995550A EP 1344306 A2 EP1344306 A2 EP 1344306A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- power
- electronic circuit
- converter
- power electronic
- self
- 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.)
- Withdrawn
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/687—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/687—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors
- H03K2017/6875—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors using self-conductive, depletion FETs
Definitions
- the invention relates to a power electronic circuit with at least one power semiconductor, the control inputs of which are linked to a control device, and to a power supply which is connected on the output side to connections of the control device and on the input side to a device at which a supply voltage is present.
- Power electronic circuits include converter circuits, such as self-commutated converter, which is operated as an inverter or rectifier, or DC / DC converter, which is designed as a step-down or step-up converter or as a switching power supply. All these power electronic circuits have in common that they have at least one power semiconductor which is controlled by means of a corresponding control device. For the application of a corresponding control current or control voltage, the control device is connected to outputs of a power supply.
- the power supply can be connected in one or more phases to a power network or to a voltage intermediate circuit capacitor of a converter circuit.
- Power electronic circuits are operated in a voltage range above 100 V. Only self-locking semiconductors are used as power semiconductors in this voltage range. What these self-locking semiconductors have in common is that they block at a control voltage of 0 V. This means that the self-locking semiconductor only carries a current when the control voltage exceeds a certain positive value.
- the self-blocking embodiment of the semiconductors necessitates a not negligible forward voltage, which in operation leads to forward losses and switching losses luste is responsible.
- This power loss which is partly due to the self-locking embodiment of the semiconductors, must be dissipated by heat dissipation devices. As a result, the construction volume of a power electronic circuit is increased or such a power electronic circuit cannot be installed in the immediate vicinity of devices which generate heat loss.
- Voltages for example up to 5 kV, are used in commercially available power electronic circuits only self-locking bipolar semiconductor switches made of silicon.
- a hybrid power MOSFET which has a self-locking n-channel MOSFET, in particular a low-voltage power MOSFET, and a self-conducting n-channel junction FET.
- This high blocking junction FET is also referred to as a junction field effect transistor (JFET).
- JFET junction field effect transistor
- the low-blocking MOSFET of this cascade circuit has an internal bipolar diode which is connected antiparallel to the MOSFET and is generally referred to as an inverse or internal freewheeling diode.
- the self-blocking n-channel MOSFET of this hybrid power MOSFET is made of silicon, whereas the self-conducting n-channel JFET is made of silicon carbide.
- This hybrid power MOSFET is designed for a high reverse voltage of over 600 V and still has only slight losses in the pass band. Since this hybrid power MOSFET is a normally-off component, it can replace the bipolar semiconductor switches made of silicon of the aforementioned power electronic circuits without these power electronic circuits having to be modified. Since this hybrid power MOSFET is constructed from two semiconductor chips, the hybrid power MOSFET requires a relatively large area. This not only increases the space requirement of the power electronic circuit, but also increases the costs.
- the invention is based on the object of further developing the power electronic circuit in such a way that the transmission and switching losses can be reduced further without increasing the costs.
- the power semiconductor is a self-conducting power semiconductor further reduces the transmission losses and switching losses of the power electronic circuit. Since the number of semiconductor chips used is halved compared to the hybrid power MOSFETs, the space requirement of this power electronic circuit is significantly reduced. The costs are also reduced compared to a power electronic circuit with hybrid power MOSFETs. So that this power electronic circuit can be operated with self-conducting power semiconductors, the device which is connected upstream of the power supply must be designed in such a way that the power supply can be offered a predetermined supply voltage for the control device of the self-conducting power semiconductor immediately after a mains switch is closed.
- the self-conducting power semiconductor is a highly blocking junction FET made of silicon carbide.
- This power semiconductor switch can be operated at a high temperature, so that the cost of heat dissipation can be greatly reduced compared to conventional power electronic circuits. This also reduces the space required for the power electronic circuit.
- the power electronic circuit according to the invention can thereby be arranged in the immediate vicinity of or in devices which generate heat loss. There is thus the possibility of integrating a power electronic circuit according to the invention into a terminal box of an electric motor without its own cooling device.
- the self-conducting power semiconductor is dimensioned such that it limits the current flow through the self-conducting power semiconductor independently of an applied voltage by means of a saturated characteristic curve, this self-conducting power semiconductor being made of silicon carbide.
- this self-conducting power semiconductor no device is required for the power supply of the control device of the self-conducting power semiconductor. The transmission losses of a power electronic circuit can thus be reduced in that only the normally-off power semiconductor is replaced by a normally-on power semiconductor.
- this device has a switch and a rectifier with an auxiliary capacitor on the DC voltage side.
- the power supply for the control device is electrically connected on the input side in parallel to the auxiliary capacitor, the rectifier being connectable to a supply network by means of the switch.
- This device ensures that the power electronic circuit can only be put into operation by means of a switch when the power supply to the control device of the self-conducting power semiconductor (s) supplies a predetermined supply voltage, so that the self-conducting one or more Power semiconductors can be blocked.
- the power electronic circuit can be used unchanged after the self-blocking power semiconductor (s) have been replaced by self-conducting power semiconductors.
- this device has a switch and an auxiliary capacitor, the auxiliary capacitor being electrically switchable in parallel with a voltage intermediate circuit capacitor by means of the switch.
- the switch is arranged in a connection between the two electrically connected capacitors.
- the power supply is electrically connected on the input side in parallel to the auxiliary capacitor. As soon as the power supply has a predetermined supply voltage for the control device of the self-conducting power semiconductor (s), these are blocked. In this embodiment, only a few additional components are required so that a commercially available power electronic circuit after replacing the self- blocking power semiconductors against self-conducting power semiconductors remains operable.
- FIG. 1 shows a first embodiment of the power electronic circuit according to the invention, in which
- FIG. 2 shows a block diagram of a preferred embodiment of the power electronic circuit according to the invention
- FIG. 3 shows temperature-dependent saturation characteristics in an I / U diagram in which
- FIG. 4 shows an advantageous embodiment of the power electronic circuit according to FIG. 2;
- FIGS. 5 to 13 each show a block diagram of a further embodiment of the power electronic circuit according to the invention, further embodiments of the power electronic circuit according to the invention being shown in FIGS.
- This power electronic circuit 2 has at least one self-conducting power semiconductor 4, the control inputs of which correspond to a corresponding control device 6 are connected. Furthermore, this power electronic circuit 2 has a power supply 8 for the control device 6 and a device 10. On the output side, this device 10 is linked to connections of the power supply 8 of the control device 6. In addition, the device 10 is connected to a network 18 by means of a line 12. The power electronic circuit 2 can be connected to this network 18 by means of an ON / OFF switch 16. In this illustration, an n-channel junction FET, in particular a high-blocking device, is shown as the self-conducting power semiconductor 4.
- this high-blocking n-channel junction FET is referred to as a junction field effect transistor (JFET).
- this JFET is made of silicon carbide. Since the device 10 ensures that the power supply generates a predetermined supply voltage for the control device 6 of the self-conducting power semiconductor 4, after the self-conducting power semiconductor 4 is blocked, the power electronic circuit can be operated like a commercially available power electronic circuit with self-locking power semiconductors.
- the use of self-conducting power semiconductors 4 significantly reduces the transmission losses of a power electronic circuit 2.
- the outlay for the device 10 is minimal, so that the reduction of the transmission losses of the power electronic circuit 2 is created without additional costs.
- 2 shows a block diagram of a preferred embodiment of the power electronic circuit 2 according to the invention, which here is a voltage intermediate circuit converter.
- This voltage intermediate circuit converter has a mains-side converter 20 an uncontrolled power converter, also referred to as a rectifier, e ⁇ inen voltage intermediate circuit capacitor Cl and an inverter 22 with six self-conducting power semiconductors 4 at.
- the network-side converter 20 can be connected to the supply network 18 by means of the ON / OFF switch 16, which is, for example, a contactor, on the AC voltage side.
- the power supply 8 of the control device 6 is a switched-mode power supply which generates a supply voltage of +/- 25V for the control devices from a plurality of 100V intermediate circuit voltages.
- JFETs made of silicon carbide are provided as self-conducting power semiconductors 4, which are dimensioned such that the current through the self-conducting power semiconductors 4 is limited regardless of the voltage present. This is achieved in that the JFET has a non-linear current-voltage characteristic curve according to FIG 3 receives, which the current through the self-conducting
- Power semiconductor 4 limited to a value independent of the applied voltage.
- the non-linearity can be selected in such a way that the self-conducting power semiconductors 4 only absorb part of the intermediate circuit voltage above a predetermined current value and thus are not noticeable at lower currents and thus cause hardly any losses in continuous operation. Since the self-conducting power semiconductors 4 each have a non-linear current-voltage characteristic, the device 10 for the power supply 8 of the control device 6 is no longer required. Without this nonlinear current-voltage characteristic, the self-conducting power semiconductors 4 short-circuit the voltage intermediate circuit capacitor C1, so that no intermediate circuit voltage can be built up when the voltage intermediate circuit converter is switched on. Without an intermediate circuit voltage, there is also no supply voltage for the control devices 6 of the self-conducting
- the intermediate circuit voltage is built up by the non-linear current-voltage characteristic curve of each self-conducting power semiconductor 4, a power loss having to be accepted.
- FIG. 4 shows an advantageous embodiment of the power electronic circuit 2 according to FIG. 2. This representation is restricted to the essential parts of the power electronic circuit 2 according to FIG. 2.
- this embodiment has a series circuit 24 which has a decoupling diode " D and an auxiliary capacitor C2.
- This series circuit 24 is electrically connected in parallel to the voltage intermediate circuit capacitor C1.
- the power supply 8 for the control devices 6 of the The self-conducting power semiconductor 4 is electrically connected in parallel to the auxiliary capacitor C2 on the input side, and the decoupling diode D decouples the two capacitors C1 and C2 from one another.
- the voltage intermediate circuit capacitor C1 can be discharged by switching on all the power semiconductors 4 of the inverter 22 of the voltage intermediate circuit converter. As soon as the voltage intermediate circuit converter is switched on again, it is immediately ready for operation, since the input voltage for the power supply 8 does not have to be built up first.
- the value of the capacitance of this auxiliary capacitor C2 depends on the required bridging time.
- FIG. 5 shows a first embodiment of the device 10 for the power supply 8 of the control device 6 of a self-conducting power semiconductor 4.
- This device 10 has a switch 26, a rectifier 28 with a DC-side auxiliary capacitor C2 and a sequence control device 30.
- the switch 26 connects the rectifier 28 on the AC voltage side to the supply network 18, to which the power electronic circuit 2 can be connected by means of the ON / OFF switch 16.
- the power supply 8 is electrically connected on the input side in parallel to the auxiliary capacitor C2.
- a DC voltage for the power supply 8 is built up by means of the rectifier 28 and the auxiliary capacitor C2. The generates from this DC input voltage
- Power supply 8 is a supply voltage for the control circuit 6 of a self-conducting power semiconductor 4. As soon as the supply voltage of the control device 6 is established, the self-conductive power switch 4 of the power electronic circuit 2 is blocked.
- FIG. 6 shows an advantageous embodiment of the device 10 according to FIG. 1 in more detail.
- This facility 10 has a switch 32 and an auxiliary capacitor C2.
- the auxiliary capacitor C2 is electrically connected in parallel to the voltage intermediate circuit capacitor C1, the switch 32 being arranged in a connection between these two capacitors C1 and C2 connected in parallel.
- the connection in which this switch 32 is arranged is immaterial.
- the input of the power supply 8 is connected electrically in parallel with the auxiliary capacitor C2.
- the power supply 8 is connected to connections of a control device 6.
- the rectifier 28 is saved here since it is already present in a voltage intermediate circuit converter.
- the voltage intermediate circuit converter has a precharging resistor 52 which can be bridged by means of a switch 54.
- This bridgeable precharge resistor 52 is arranged in the positive busbar between the grid-side converter 20 and the inverter 32.
- the device 10 likewise has a series circuit 24 which has a decoupling diode D and an auxiliary capacitor C2. This series circuit 24 is electrically connected in parallel to the output of the line-side converter 20.
- the power supply 8 of the control device 6 of the self-conducting power semiconductors 4 of the inverter 32 is electrically connected on the input side in parallel to the auxiliary capacitor C2. In addition, this power supply 8 is connected to a control input of the switch 54 by means of a control line 14.
- This switch 54 is actuated as soon as the voltage intermediate circuit capacitor C1 has exceeded a predetermined voltage value.
- a thermistor 56 can also be used (FIG. 8).
- the network 18 is connected to the uncharged voltage intermediate circuit capacitor C1 with a cold thermistor 56, this voltage picks up and limits the current that flows through the still short-circuited inverter 32. Since the voltage for the power supply 8 is tapped before the thermistor 56 seen in the direction of current flow, it can start its work and supply the energy for blocking the self-conducting power semiconductors 4 of the inverter 32. As soon as these self-conducting power semiconductors 4 block, the voltage intermediate circuit capacitor C1 charges.
- FIG. 9 shows an embodiment in which the short circuit of the voltage intermediate circuit capacitor C1 is immediately removed when the network 18 is switched on. This is achieved in that the thermistor 56 is arranged in the reference rail (ground line) of the voltage intermediate circuit converter between the line-side converter 20 and the inverter 32. In addition to the series connection 24, the device 10 has a resistor 58 for each self-blocking power semiconductor 4 on the lower bridge side of the inverter 32. These self-conducting power semiconductors 4 are electrically conductively connected with a connection to the reference rail.
- Each resistor 58 is on the one hand with a control connection of a self-conducting power semiconductor 4 and on the other hand by means of two Zener diodes 60 and 62 connected in anti-parallel are connected to the reference rail in the line-side converter 20.
- the voltage present at the thermistor 56 minus the Zener voltages of the Zener diodes 60, 62 is applied as a negative blocking voltage to the control connections of the self-conducting power semiconductors 4 on the lower bridge side of the inverter 32. Since this voltage can be higher than permitted for the control connections of the self-conducting power semiconductors 4, each control connection is protected by a Zener diode 64 and 66.
- the resistors 58 are very high-impedance in order to keep the power of the Zener diodes 60 to 64 very low. In continuous operation, the voltage across the resistors 58 is less than 15V.
- the Zener diodes 60 and 62 prevent the voltage drop across the thermistor 56 from influencing the control of the self-conducting power semiconductors 4 of the inverter 32 in normal operation.
- FIG. 9 An advantageous embodiment of the device 10 according to FIG. 9 is shown in more detail in FIG.
- This variant of the device 10 only needs one resistor 58.
- three diodes 68 are provided, which are connected in such a way that the diodes 68 block in normal operation and the resistor 58 is de-energized.
- Low-voltage diodes are provided as diodes 68.
- FIG. 10 A further advantageous embodiment of the device 10 is shown in more detail in FIG.
- this variant of the device 10 only a resistor 58 and a diode 68 are required.
- the diode 68 is not linked to a control connection of a self-conducting power semiconductor 4 on the anode side, as in the variant according to FIG. 10, but to the output of the power supply 8.
- the supply voltage becomes direct the control devices 6 of the self-conducting power semiconductors 4 on the lower bridge side of the inverter 32.
- FIG. 12 shows a voltage intermediate circuit converter which, as the line-side converter 20, has a semi-controlled thyristor bridge.
- the negative busbar between the line-side converter 20 and the inverter 32 is connected to ground in this voltage link converter.
- a control device 70 is provided for controlling the thyristors of the semi-controlled bridge and is connected to an output of the power supply 8 by means of a line 12.
- the device 10 has a series circuit 24, which is electrically connected in parallel to the output of the line-side converter 20.
- the connection point of the diode D and the auxiliary capacitor C2 is connected to a mains line by means of a diode 72. If the converter is connected to the network 18 using the ON / OFF switch 16, the voltage intermediate circuit initially remains voltage-free, since the thyristors of the semi-controlled bridge do not yet receive any ignition pulses.
- the power supply 8 can generate a supply voltage for the control device 6 of the self-conducting power semiconductors 4 of the inverter .32 and for the control device 70 of the thyristors, this is connected on the input side to at least one diode 72 with a power line. Three diodes can also be used.
- the control angle is based on Inverter end positions slowly reduced to zero. If the intermediate circuit is started up, the power supply 8 receives its energy from the voltage intermediate circuit capacitor C1.
- a matrix converter can also be provided as the power electronic circuit, the self-blocking power semiconductors of which can be replaced by self-conducting power semiconductors.
- the device 10 also has a series connection 24 in the case of a matrix converter as a power electronic circuit. Instead of a diode D, this series circuit has three diodes D.
- the second connection of the auxiliary capacitor C2 is linked with three diodes D 'to the input connections of the matrix converter.
- the power supply 8 of the control device 6 of the self-conducting power semiconductors 4 of the matrix converter receives its energy from the network 18 before this matrix converter is connected to the network 18 by means of the switch 16. As soon as the self-conducting power semiconductors 4 are blocked, the ON / OFF switch 16 is closed by means of the control line 14.
- the power supply 8 can be implemented redundantly.
- each power supply 8 and 34 is provided as the power supply 8 and 34, of which only the input transformer 36 and 38 is shown for reasons of clarity. Since each power supply 8 and 34 six control devices 6 of the six If self-conducting power semiconductors 4 of an inverter 22 of a voltage intermediate circuit converter are supplied with supply energy, the transformers 36 and 38 are each provided with six secondary windings 40 and 42. The primary winding 44 and 46 of the power supply 8 and 34 is electrically connected in parallel to the auxiliary capacitor C2. One output each of the secondary windings 40 and 42 is provided with a decoupling diode 48 and 50, respectively. The outputs of each secondary winding 40, 42 are with a corresponding control device 6 of a self-conducting
- Power semiconductor switch 4 linked. This redundant configuration of the power supply 8 can ensure that the self-conducting power semiconductor switches 4 of a power electronic circuit 2 are always supplied with control energy for their operation.
- FIG. 15 shows a further possibility of interconnecting two power supplies 8 and 34.
- the two power supplies 8 and 34 are not electrically connected in parallel, but rather are respectively assigned to predetermined control devices 6.
- the outputs of the power supply 8 are connected to the control devices 6 of the 'self-conducting power semiconductors 4 on an upper bridge side of the inverter 22 of a voltage intermediate-circuit converter, whereas the outputs of the power supply 34 are connected to the control devices 6 of the self-conductive power semiconductors 4 on the lower bridge side of the inverter 22. Since each power supply 8 or 34 only has to supply three control devices 6, the input transformer 36 or 38 has only three secondary windings 40 and 42. With this embodiment, an unintentional intermediate circuit short circuit of a voltage intermediate circuit converter can be prevented. However, if a current Power supply 8 or 34 off, the power electronic circuit 2 must be switched off.
- a self-conducting power semiconductor 4 can be used as a direct replacement for self-locking power semiconductors in commercially available converter circuits in order to reduce the transmission losses at low cost. If self-conducting power semiconductors 4 are used in commercially available converter circuits, the freewheeling diode can also be dispensed with, as a result of which the wiring complexity and the space requirement are also reduced.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Power Conversion In General (AREA)
- Inverter Devices (AREA)
- Rectifiers (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10063084 | 2000-12-18 | ||
| DE10063084A DE10063084B4 (de) | 2000-12-18 | 2000-12-18 | Leistungselektronische Schaltung |
| PCT/DE2001/004486 WO2002050897A2 (de) | 2000-12-18 | 2001-11-29 | Leistungselektronische schaltung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1344306A2 true EP1344306A2 (de) | 2003-09-17 |
Family
ID=7667652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01995550A Withdrawn EP1344306A2 (de) | 2000-12-18 | 2001-11-29 | Leistungselektronische schaltung |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7327053B2 (de) |
| EP (1) | EP1344306A2 (de) |
| CN (1) | CN100521493C (de) |
| DE (1) | DE10063084B4 (de) |
| WO (1) | WO2002050897A2 (de) |
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| DE102005061845B4 (de) * | 2005-12-23 | 2013-07-18 | Siemens Aktiengesellschaft | Vorrichtung zur Stromversorgung von Feldgeräten |
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| US11101640B1 (en) | 2020-07-29 | 2021-08-24 | Abb Schweiz | Solid-state protection for direct current networks |
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| US3740581A (en) * | 1972-03-08 | 1973-06-19 | Hughes Aircraft Co | Precision switching circuit for analog signals |
| NL8702847A (nl) * | 1987-11-27 | 1989-06-16 | Philips Nv | Dc-ac brugschakeling. |
| US5285369A (en) * | 1992-09-01 | 1994-02-08 | Power Integrations, Inc. | Switched mode power supply integrated circuit with start-up self-biasing |
| DE59400108D1 (de) * | 1993-03-22 | 1996-03-21 | Siemens Ag | Verfahren und Vorrichtung zur Arbeitspunktregelung eines Reihenschwingkreis-Wechselrichters |
| US5550463A (en) * | 1993-05-20 | 1996-08-27 | Coveley; Michael | Power supply connected in parallel with solid state switch for phase control of average power to a load |
| WO1995024055A1 (de) * | 1994-03-04 | 1995-09-08 | Siemens Aktiengesellschaft | Mis-struktur auf siliciumcarbid-basis mit hoher latch-up-festigkeit |
| FI96552C (fi) * | 1994-05-10 | 1996-07-10 | Nokia Telecommunications Oy | Avausfettikytkimen ohjauskytkentä |
| US6462603B1 (en) * | 1995-08-08 | 2002-10-08 | Bryan M. H. Pong | Solid-state relay |
| DE19535541A1 (de) * | 1995-09-25 | 1997-03-27 | Siemens Ag | Schaltungsanordnung zum Ansteuern eines Depletion-MOSFET |
| DE19610135C1 (de) * | 1996-03-14 | 1997-06-19 | Siemens Ag | Elektronische Einrichtung, insbesondere zum Schalten elektrischer Ströme, für hohe Sperrspannungen und mit geringen Durchlaßverlusten |
| JPH09307070A (ja) * | 1996-05-14 | 1997-11-28 | Fuji Electric Co Ltd | スイッチング電源用半導体集積回路 |
| DE19702687C1 (de) * | 1997-01-25 | 1998-08-06 | Bosch Gmbh Robert | Anordnung zum Schutz gegen Übertemperatur eines Steuergeräts für Gasentladungslampen |
| EP0925711A2 (de) * | 1997-05-07 | 1999-06-30 | Koninklijke Philips Electronics N.V. | Schaltung zum betrieb einer entladungslampe |
| JP2000224867A (ja) * | 1999-01-28 | 2000-08-11 | Sumitomo Electric Ind Ltd | インバータ |
| US6313482B1 (en) * | 1999-05-17 | 2001-11-06 | North Carolina State University | Silicon carbide power devices having trench-based silicon carbide charge coupling regions therein |
| DE20109957U1 (de) * | 2001-06-15 | 2002-07-18 | Siemens AG, 80333 München | Schaltungsanordnung zum Steuern der einer Last zugeführten Leistung |
| US6529034B1 (en) * | 2001-11-07 | 2003-03-04 | International Rectifier Corporation | Integrated series schottky and FET to allow negative drain voltage |
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2000
- 2000-12-18 DE DE10063084A patent/DE10063084B4/de not_active Expired - Fee Related
-
2001
- 2001-11-29 CN CNB018208517A patent/CN100521493C/zh not_active Expired - Fee Related
- 2001-11-29 WO PCT/DE2001/004486 patent/WO2002050897A2/de not_active Ceased
- 2001-11-29 EP EP01995550A patent/EP1344306A2/de not_active Withdrawn
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2003
- 2003-06-18 US US10/464,872 patent/US7327053B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0250897A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100521493C (zh) | 2009-07-29 |
| WO2002050897A3 (de) | 2002-08-29 |
| US7327053B2 (en) | 2008-02-05 |
| DE10063084A1 (de) | 2002-07-11 |
| WO2002050897A2 (de) | 2002-06-27 |
| US20040004404A1 (en) | 2004-01-08 |
| DE10063084B4 (de) | 2009-12-03 |
| CN1518791A (zh) | 2004-08-04 |
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