Claims
- 1. An electronic power circuit, comprising:
at least one power semiconductor implemented as a self-conducting power semiconductor; a trigger device having an output connected to control inputs of the at least one power semiconductor; a power supply having an output side, which is operatively connected to the trigger device, and an input side; and an accessory device power operatively connected to the input side of the power supply and receiving a supply voltage.
- 2. The electronic power circuit of claim 1, wherein the self-conducting power semiconductor is made of silicon carbide.
- 3. The electronic power circuit of claim 1, wherein the self-conducting power semiconductor is a Junction-Field-Effect-Transistor (JFET) with a high reverse blocking voltage.
- 4. The electronic power circuit of claim 1, wherein the self-conducting power semiconductor is constructed to have a saturating characteristic which limits a current flow independent of an applied voltage.
- 5. The electronic power circuit of claim 1, wherein the accessory device includes a rectifier, a switch for connecting an AC-side of the rectifier to a supply voltage of a power grid, and an auxiliary capacitor connected across a DC-side of the rectifier and connected to the input side of the power supply.
- 6. The electronic power circuit of claim 1, and further comprising a free-wheeling converter having an input side connected to an electric power grid, and a voltage link capacitor, wherein the accessory device includes an auxiliary capacitor electrically connected across a DC-output side of the converter, and a switch arranged in a connection between the voltage link capacitor and the auxiliary capacitor, with the input side of the power supply connected with the DC-output side of the converter.
- 7. The electronic power circuit of claim 1, and further comprising a free-wheeling converter having an input side connected to an electric power grid, a voltage link capacitor, and a precharging resistor arranged in a positive line between an output of the converter and the voltage link capacitor and having a switch bridging the precharging resistor, wherein the accessory device includes an auxiliary capacitor and a decoupling diode electrically connected in series, with the series connection connected in parallel to the output of the converter, wherein the input side of the power supply is electrically connected in parallel to the auxiliary capacitor and linked via a control line to the switch that bridges the precharging resistor.
- 8. The electronic power circuit of claim 1, and further comprising a free-wheeling converter having an input side connected to an electric power grid, a voltage link capacitor, and an NTC resistor connected in a ground connection between an output side of the converter and the voltage link capacitor, wherein the accessory device includes a decoupling diode and an auxiliary capacitor connected in series, with the series connection connected in parallel to the output side of the converter and the auxiliary capacitor connected in parallel to the input side of the power supply, two anti-parallel connected Zener diodes, and at least one resistor, said resistor connected with a control terminal of the self-conducting power semiconductor, on one hand, and via the Zener diodes to a ground terminal of the converter, on the other hand.
- 9. The electronic power circuit of claim 8, and further comprising another decoupling diode connected between the resistor and the control terminal of the self-conducting power semiconductor.
- 10. The electronic power circuit of claim 1, and further comprising a free-wheeling converter having an input side connected to an electric power grid, a voltage link capacitor, and an NTC resistor connected in a ground connection between an output side of the converter and the voltage link capacitor, wherein the accessory device includes a decoupling diode and an auxiliary capacitor connected in series, with the series connection connected in parallel to the output side of the converter and the auxiliary capacitor connected in parallel to the input side of the power supply, two anti-parallel connected Zener diodes, a resistor and another decoupling diode connected in series between a ground terminal of the converter and a positive output of the power supply.
- 11. The electronic power circuit of claim 1, and further comprising a half-controlled converter connected to an electric power grid, a second trigger device connected to an output of the power supply and controlling the half-controlled converter, a voltage link capacitor, and at least one diode, wherein the accessory device includes an auxiliary capacitor and a decoupling diode which are electrically connected in series, with the series connection connected in parallel with an output of the converter, with the input side of the power supply connected in parallel to the auxiliary capacitor, wherein a connection point of the decoupling diode and the auxiliary capacitor is decoupled from a power supply line by the at least one diode.
- 12. The electronic power circuit of claim 5, wherein the switch is implemented as an electronic switch.
- 13. The electronic power circuit of claim 6, wherein the switch is implemented as an electronic switch.
- 14. The electronic power circuit of claim 1, wherein the power supply is a DC/DC converter.
- 15. The electronic power circuit of claim 1, wherein the power supply is a switched mode power supply.
- 16. The electronic power circuit of claim 5 wherein the auxiliary capacitor has a capacitance value which is significantly smaller than a capacitance value of the voltage link capacitor.
- 17. The electronic power circuit of claim 6 wherein the auxiliary capacitor has a capacitance value which is significantly smaller than a capacitance value of the voltage link capacitor.
- 18. The electronic power circuit of claim 7 wherein the auxiliary capacitor has a capacitance value which is significantly smaller than a capacitance value of the voltage link capacitor.
- 19. The electronic power circuit of claim 8 wherein the auxiliary capacitor has a capacitance value which is significantly smaller than a capacitance value of the voltage link capacitor.
- 20. The electronic power circuit of claim 10 wherein the auxiliary capacitor has a capacitance value which is significantly smaller than a capacitance value of the voltage link capacitor.
- 21. The electronic power circuit of claim 11 wherein the auxiliary capacitor has a capacitance value which is significantly smaller than a capacitance value of the voltage link capacitor.
- 22. The electronic power circuit of 1, wherein the electronic power circuit is an inverter.
- 23. The electronic power circuit of claim 1, wherein the electronic power circuit is a self-commutated network converter.
- 24. The electronic power circuit of claim 1, wherein the electronic power circuit is a matrix converter.
Priority Claims (1)
Number |
Date |
Country |
Kind |
100 63 084.7 |
Dec 2000 |
DE |
|
CROSS-REFERENCES TO RELATED APPLICATIONS
[0001] This application is a continuation of prior filed copending PCT International Application No. PCT/DE01/04486, filed Nov. 29, 2001, on which priority is claimed under 35 U.S.C. §120, the disclosure of which is hereby incorporated by reference.
Continuations (1)
|
Number |
Date |
Country |
Parent |
PCT/DE01/04486 |
Nov 2001 |
US |
Child |
10464872 |
Jun 2003 |
US |