Power pulse device for exploding foil and working method

Abstract

The invention discloses a power pulse device for an exploding foil and a working method. The power pulse device comprises a boosting module, a high-voltage capacitor, a voltage dividing module, a discharging switch and a controller module, an input power supply is connected with the input end of the power supply module, the first input end of the boosting module and the first input end of the controller module, the output end of the boosting module is connected with one end of the high-voltage capacitor, and the other end of the high-voltage capacitor is connected with the input end of the voltage dividing module and the input end of the discharging switch. The output end of the discharge switch is connected with the exploding foil exploder; the output end of the voltage dividing module is connected with the second input end of the controller module; the output end of the controller module is connected with the second input end of the boost module.

Description

Technical Field

[0001] The invention relates to the technical field of equipment control, and in particular to a power pulse device for exploding foil and a working method thereof. Background Art

[0002] The current exploding foil power pulse device has the problem of insufficient power density and a large size to provide reliable ignition of the exploding foil igniter. It has a large gap with similar foreign products and cannot meet the requirements of the new exploding foil igniter. Summary of the invention

[0003] In view of the technical problem that the power density of an exploding foil power pulse device in the prior art is insufficient, the present invention provides a power pulse device for an exploding foil and a working method.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] A power pulse device for exploding foil, comprising a boost module, a high voltage capacitor, a voltage divider module, a discharge switch and a controller module;

[0006] The input power supply is respectively connected to the input end of the power module, the first input end of the boost module, and the first input end of the controller module; the output end of the boost module is connected to one end of the high-voltage capacitor; the other end of the high-voltage capacitor is respectively connected to the input end of the voltage divider module and the input end of the discharge switch; the output end of the discharge switch is connected to the explosive foil initiator; the output end of the voltage divider module is connected to the second input end of the controller module; and the output end of the controller module is connected to the second input end of the boost module.

[0007] Preferably, the output end of the voltage divider module is also connected to a host computer via a charging feedback interface.

[0008] Preferably, it also includes a charging instruction module;

[0009] The first input end of the charging instruction module is connected to the host computer through the charging instruction interface, and the output end of the charging instruction module is connected to the third input end of the controller module.

[0010] Preferably, it also includes a discharge instruction module;

[0011] The input end of the discharge instruction module is connected to the host computer through the discharge instruction interface, the first output end of the discharge instruction module is connected to the second input end of the charge instruction module, and the second output end of the discharge instruction module is connected to the second input end of the drive module.

[0012] Preferably, it also includes a driving module;

[0013] The first input end of the driving module is connected to the host computer through an enabling instruction interface, and the output end of the driving module is connected to the control end of the discharge switch.

[0014] Preferably, the boost module comprises a LTCC transformer.

[0015] Preferably, the high-voltage capacitor is an antiferroelectric high-voltage capacitor.

[0016] The present invention also provides a working method of a power pulse device for exploding foil, which is used for a power pulse device for exploding foil, and specifically comprises the following steps:

[0017] S1: When the input power is greater than the undervoltage protection voltage, the controller module is powered on;

[0018] S2: When the charging instruction sent by the host computer is valid and the discharging instruction is invalid, the controller module controls the boost module to perform boost conversion and store it in the high-voltage capacitor; the voltage of the high-voltage capacitor is fed back to the controller module through the voltage divider module to determine whether the voltage of the high-voltage capacitor reaches the target voltage; if so, the target voltage is maintained, and the voltage of the high-voltage capacitor is sent to the host computer through the charging feedback interface; if not, the voltage is continued to be boosted;

[0019] S3: The host computer sends a discharge command and an enable command. When the enable command is valid and the discharge command is valid, the charge command and the charge command module immediately become invalid. Then the drive module starts to work, outputs energy to turn on the discharge switch, and the energy in the high-voltage capacitor is released into the exploding foil initiator through the discharge switch to complete the ignition.

[0020] Preferably, the charging instruction, enabling instruction and discharging instruction are all analog level signals, and high level is effective; the charging feedback is a low-voltage analog signal.

[0021] Preferably, if the discharge instruction is valid but the enable instruction is invalid, the drive module cannot work.

[0022] In summary, due to the adoption of the above technical solution, compared with the prior art, the present invention has at least the following beneficial effects:

[0023] The present invention adopts miniaturized and high energy efficiency components including LTCC transformer, antiferroelectric high voltage capacitor, MOS controlled thyristor and current type PWM controller to improve the energy utilization rate of pulse power device and ensure reliable ignition of exploding foil igniter; meanwhile, the volume of pulse power device is less than 10cm 3 , reducing the volume to meet the installation requirements of small spaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of a power pulse device for exploding foil according to an exemplary embodiment of the present invention.

[0025] Figure 2 It is a schematic diagram of a working method of a power pulse device for exploding foil according to an exemplary embodiment of the present invention. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the examples and specific implementation methods. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following examples, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0027] In the description of the present invention, it is necessary to understand that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] like Figure 1 As shown, the present invention provides a power pulse device for exploding foil, including a power supply module, a boost module (LTCC transformer), a high-voltage capacitor (antiferroelectric high-voltage capacitor), a voltage divider module, a discharge switch (MOS-controlled thyristor), a controller module (current-type PWM controller), a drive module, a charging instruction module and a discharging instruction module.

[0029] In this embodiment, the external input power supply is respectively connected to the input end of the power module, the first input end of the boost module, and the first input end of the controller module; the output end of the boost module is connected to one end of the high-voltage capacitor; the other end of the high-voltage capacitor is respectively connected to the input end of the voltage divider module (for dividing the voltage of the high-voltage capacitor) and the input end of the discharge switch; the output end of the discharge switch is connected to the exploding foil initiator (the ignition energy is released to the exploding foil initiator through the discharge switch to achieve ignition); the output end of the voltage divider module is connected to the second input end of the controller module (for collecting the voltage of the high-voltage capacitor); the output end of the controller module is connected to the second input end of the boost module to control the working state (working or stopped) of the boost module.

[0030] In this embodiment, the input power supply provides working power for the power module, boost module and controller module respectively; the power module is used to provide internal low-voltage control power for other modules; the energy boosted by the boost module is stored in the high-voltage capacitor.

[0031] In this embodiment, the output end of the voltage divider module is also connected to the host computer through the charging feedback interface, so as to realize external real-time detection of the high-voltage capacitor voltage.

[0032] In this embodiment, the first input end of the charging instruction module is connected to the host computer through the charging instruction interface, and the output end of the charging instruction module is connected to the third input end of the controller module to realize the start and stop of the controller module.

[0033] In this embodiment, the input end of the discharge instruction module is connected to the host computer through the discharge instruction interface, and the first output end of the discharge instruction module is connected to the second input end of the charge instruction module, so as to control whether the charge instruction module is effective.

[0034] In this embodiment, the first input end of the driving module is connected to the host computer through the enable instruction interface (controlling the driving module to enable power on), the second output end of the discharge instruction module is connected to the second input end of the driving module, and the output end of the driving module is connected to the control end of the discharge switch.

[0035] In this embodiment, the charging instruction, enabling instruction, and discharging instruction are all analog level signals, and high level is effective; the charging feedback is a low-voltage analog signal.

[0036] like Figure 2 As shown, based on the above-mentioned power pulse device for exploding foil, the present invention also provides a working method of the power pulse device for exploding foil, which specifically includes the following steps:

[0037] S1: After the input power is valid, the power module starts to output voltage; when the input power is greater than the undervoltage protection voltage, the controller module is powered on;

[0038] S2: When the charging instruction sent by the host computer is valid and the discharging instruction is invalid, the controller module starts to work, controls the boost module to perform boost conversion and store it in the high-voltage capacitor; the voltage of the high-voltage capacitor is fed back to the controller module through the voltage divider module, and the controller module determines whether the voltage of the high-voltage capacitor reaches the target voltage. If so, the target voltage is maintained, the boost is completed, and the voltage of the high-voltage capacitor is sent to the host computer through the charging feedback interface; if not, the boost continues until the voltage of the high-voltage capacitor reaches the target voltage;

[0039] S3: When the host computer determines that the voltage of the high-voltage capacitor has reached the target voltage, it sends a discharge instruction and an enable instruction; after the enable instruction is valid, the drive module starts to power on and has the energy to turn on the discharge switch; after the enable instruction is valid and the discharge instruction is valid, the charging instruction and the charging instruction module immediately become invalid, and the controller module stops working, that is, the boost module stops boosting; at the same time, the drive module starts working (if the enable instruction is invalid, the drive module cannot work after the host computer sends a valid discharge instruction), outputs energy to turn on the discharge switch, and the energy in the high-voltage capacitor is released to the exploding foil initiator through the discharge switch to complete the ignition.

[0040] In this embodiment, the charging instruction, enabling instruction, and discharging instruction are all analog level signals, and high level is effective; the charging feedback is a low-voltage analog signal.

[0041] This Exploding Foil Small Modular Pulse Power Device features:

[0042] 1. The controller module is a current-type PWM controller and its peripheral circuits, which have the functions of wide operating voltage, collecting high-voltage capacitor storage voltage, and starting and stopping the boost module to boost voltage;

[0043] 2. The charging instruction module is a charging instruction recognition circuit, which converts the charging instruction into a start-stop control signal of the controller and is connected to the start-stop control port of the controller;

[0044] 3. The discharge instruction module is a discharge instruction recognition circuit, which converts the discharge instruction into a control signal of the drive module and controls the charge instruction module to be disabled, and is connected to the enable port of the charge instruction module and the control port of the drive module;

[0045] 4. The power module is a voltage conversion circuit that converts the input power into internal low-voltage control power;

[0046] 5. The boost module is a boost commutation circuit, including an LTCC transformer, a high-voltage rectifier diode, a MOS tube and current collection, etc. It is controlled by a controller module and boosts the energy of the input power supply and stores it in a high-voltage capacitor;

[0047] 6. The high-voltage capacitor is an antiferroelectric high-voltage capacitor with high energy density, which is the energy source of the exploding foil detonation circuit. The capacitor voltage is monitored in real time by the controller module;

[0048] 7. The voltage divider module is a resistor voltage divider network and a filter circuit, which is used for voltage division collection, feedback and discharge of high-voltage capacitor voltage;

[0049] 8. The driving module is a discharge switch driving circuit, which is controlled by the discharge instruction module and releases the voltage of the enable instruction to the control end of the discharge switch;

[0050] 9. The discharge switch is a MOS controlled thyristor, which is controlled by the drive module to release the energy of the high voltage capacitor to the exploding foil initiator.

[0051] This specific implementation method includes miniaturized, high energy efficiency components including LTCC transformers, antiferroelectric high-voltage capacitors, MOS-controlled thyristors and current-mode PWM controllers, which improve the energy utilization rate of pulse power devices and reduce the size of pulse power devices. It is suitable for application in some new miniaturized exploding foil igniter fields.

[0052] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present invention, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A power pulse device for exploding foil, characterized in that: It includes a boost module, a high-voltage capacitor, a voltage divider module, a discharge switch and a controller module; The input power supply is respectively connected to the input end of the power module, the first input end of the boost module, and the first input end of the controller module; the output end of the boost module is connected to one end of the high-voltage capacitor; the other end of the high-voltage capacitor is respectively connected to the input end of the voltage divider module and the input end of the discharge switch; the output end of the discharge switch is connected to the explosive foil initiator; the output end of the voltage divider module is connected to the second input end of the controller module; and the output end of the controller module is connected to the second input end of the boost module.

2. A power pulse device for exploding foil as claimed in claim 1, characterized in that: The output end of the voltage divider module is also connected to the host computer through a charging feedback interface.

3. A power pulse device for exploding foil as claimed in claim 1, characterized in that: Also includes a charging instruction module; The first input end of the charging instruction module is connected to the host computer through the charging instruction interface, and the output end of the charging instruction module is connected to the third input end of the controller module.

4. A power pulse device for exploding foil as claimed in claim 1, characterized in that: Also included is a discharge instruction module; The input end of the discharge instruction module is connected to the host computer through the discharge instruction interface, the first output end of the discharge instruction module is connected to the second input end of the charge instruction module, and the second output end of the discharge instruction module is connected to the second input end of the drive module.

5. A power pulse device for exploding foil as claimed in claim 1, characterized in that: Also includes a driver module; The first input end of the driving module is connected to the host computer through an enabling instruction interface, and the output end of the driving module is connected to the control end of the discharge switch.

6. A power pulse device for exploding foil as claimed in claim 1, characterized in that: The boost module includes a LTCC transformer.

7. A power pulse device for exploding foil as claimed in claim 1, characterized in that: The high-voltage capacitor is an antiferroelectric high-voltage capacitor.

8. A method for operating a power pulse device for exploding foil, characterized in that: A power pulse device for exploding foil as claimed in any one of claims 1 to 7, comprising the following steps: S1: When the input power is greater than the undervoltage protection voltage, the controller module is powered on; S2: When the charging instruction sent by the host computer is valid and the discharging instruction is invalid, the controller module controls the boost module to perform boost conversion and store it in the high-voltage capacitor; the voltage of the high-voltage capacitor is fed back to the controller module through the voltage divider module to determine whether the voltage of the high-voltage capacitor reaches the target voltage; if so, the target voltage is maintained, and the voltage of the high-voltage capacitor is sent to the host computer through the charging feedback interface; if not, the voltage is continued to be boosted; S3: The host computer sends a discharge command and an enable command. When the enable command is valid and the discharge command is valid, the charge command and the charge command module immediately become invalid. Then the drive module starts to work, outputs energy to turn on the discharge switch, and the energy in the high-voltage capacitor is released into the exploding foil initiator through the discharge switch to complete the ignition.

9. A method for operating a power pulse device for exploding foil as claimed in claim 8, characterized in that: The charging instruction, enabling instruction and discharging instruction are all analog level signals, and high level is effective; the charging feedback is a low-voltage analog signal.

10. A method for operating a power pulse device for exploding foil as claimed in claim 8, characterized in that: If the discharge command is valid but the enable command is invalid, the drive module cannot work.

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