Spark gap arrangement

Patent metadata

Field	Value
Publication number	US-10084309-B2
Application number	US-201414911155-A
Country	US
Kind code	B2
Filing date	Jul 30, 2014
Priority date	Aug 9, 2013
Publication date	Sep 25, 2018
Grant date	Sep 25, 2018

Abstract

A spark gap arrangement includes a triggerable spark gap and a trigger circuit. The spark gap arrangement also includes a first and a second charge storage device, a voltage limiting component, a trigger diode, a triggerable arresting element, and a transformer. The voltage limiting component and the trigger diode are designed to relay an input pulse in a specified voltage range and charge the first charge storage device. Furthermore, the trigger circuit is designed such that the triggerable arresting element is connected via the first charge storage device dependent on the voltage and discharges the second charge storage device via a primary side of the transformer.

First claim

We claim:

1. A spark gap arrangement comprising:
a triggerable spark gap; and
a trigger circuit which comprises a first charge storage device, a second charge storage device, a voltage-limiting component, a trigger diode, a triggerable arresting element and a transformer;
wherein the voltage-limiting component and the trigger diode are designed to through-connect an input pulse in a predetermined voltage range and charge the first charge storage device;
wherein the trigger circuit is configured in such a way that the triggerable arresting element through-connects in a voltage-dependent manner via the first charge storage device and discharges the second charge storage device via a primary side of the transformer;
wherein a secondary side of the transformer is connected to the triggerable spark gap; and
wherein the trigger circuit comprises a further voltage-limiting component that is configured to limit a voltage on the primary side of the transformer to a predefined value.

2. The spark gap arrangement according to claim 1 , wherein the predetermined voltage range is between 420 volts and 480 volts.

3. The spark gap arrangement according to claim 1 , wherein an operating voltage is between 380 volts and 420 volts, the spark gap arrangement configured to operate when the operating voltage is applied to an input of the trigger circuit.

4. The spark gap arrangement according to claim 1 , wherein the voltage-limiting component comprises a plurality of Zener diodes.

5. The spark gap arrangement according to claim 4 , wherein the voltage-limiting component is designed in such a way that breakdown voltages of the Zener diodes define the predetermined voltage range.

6. The spark gap arrangement according to claim 1 , wherein the voltage-limiting component comprises 13 Zener diodes, each Zener diode having a breakdown voltage of 33 volts.

7. The spark gap arrangement according to claim 1 , wherein the triggerable arresting element comprises a thyristor, and wherein the trigger diode is connected in series with the voltage-limiting component and is configured to switch the thyristor to a conducting state depending on a voltage over the first charge storage device.

8. The spark gap arrangement according to claim 1 , wherein the trigger circuit comprises a first resistor and a second resistor;
wherein the trigger circuit is configured in such a way that the second charge storage device is charged during operation of the trigger circuit to a voltage between 280 volts and 320 volts; and
wherein the trigger circuit is configured to charge the first charge storage device via the second resistor by use of the input pulse.

9. The spark gap arrangement according to claim 1 , wherein the trigger circuit comprises a first resistor that is configured in such a way that the second charge storage device is charged during operation of the trigger circuit to a voltage between 280 volts and 320 volts.

10. The spark gap arrangement according to claim 9 , wherein the trigger circuit comprises a third resistor, and wherein the trigger circuit is configured so that the first resistor and the third resistor form a voltage divider for a primary voltage of the transformer.

11. The spark gap arrangement according to claim 1 , wherein the trigger circuit comprises a second resistor, wherein the trigger circuit is configured to charge the first charge storage device via the second resistor by use of the input pulse.

12. The spark gap arrangement according to claim 1 , wherein the spark gap arrangement has a safety cut-out that is connected to the triggerable spark gap, wherein the safety cut-out is configured to disconnect an electrical component from an operating voltage.

13. An electronic element comprising a spark gap arrangement according to claim 1 and an electrical component, wherein the electronic element is configured in such a way that an operating voltage is applied to the electrical component.

14. The electronic element according to claim 13 , wherein the electrical component comprises a super-capacitor that has a maximum electrical voltage of 500 volts.

15. A spark gap arrangement comprising:
a triggerable spark gap; and
a trigger circuit which comprises a first charge storage device, a second charge storage device, a voltage-limiting component, a trigger diode, a triggerable arresting element and a transformer;
wherein the voltage-limiting component comprises a plurality of Zener diodes;
wherein the voltage-limiting component and the trigger diode are designed to through-connect an input pulse in a predetermined voltage range and charge the first charge storage device;
wherein the trigger circuit is configured in such a way that the triggerable arresting element through-connects in a voltage-dependent manner via the first charge storage device and discharges the second charge storage device via a primary side of the transformer; and
wherein a secondary side of the transformer is connected to the triggerable spark gap.

16. The spark gap arrangement according to claim 15 , wherein the voltage-limiting component is designed in such a way that breakdown voltages of the Zener diodes define the predetermined voltage range.

17. The spark gap arrangement according to claim 15 , wherein the voltage-limiting component comprises 13 Zener diodes, each Zener diode having a breakdown voltage of 33 volts.

18. A spark gap arrangement comprising:
a triggerable spark gap; and
a trigger circuit which comprises a first charge storage device, a second charge storage device, a voltage-limiting component, a trigger diode, a triggerable arresting element and a transformer;
wherein the voltage-limiting component and the trigger diode are designed to through-connect an input pulse in a predetermined voltage range and charge the first charge storage device;
wherein the trigger circuit is configured in such a way that the triggerable arresting element through-connects in a voltage-dependent manner via the first charge storage device and discharges the second charge storage device via a primary side of the transformer;
wherein a secondary side of the transformer is connected to the triggerable spark gap
wherein the triggerable arresting element comprises a thyristor; and
wherein the trigger diode is connected in series with the voltage-limiting component and is configured to switch the thyristor to a conducting state depending on a voltage over the first charge storage device.

Assignees

• Epcos Ag

Inventors

• Bobert Peter
• Dorsch Eduard
• Werner Frank

Classifications

• H01T15/00

  Circuits specially adapted for spark gaps, e.g. ignition circuits (ignition circuits for internal-combustion engines F02P; electric spark ignition for combustion apparatus F23Q; protection circuits using spark gaps H02H9/06) · CPC title

• H02H9/041

  using a short-circuiting device · CPC title

• H02H9/06 Primary

  using spark-gap arresters · CPC title

• H02H9/005

  avoiding undesired transient conditions · CPC title