CN205355532U - Constant voltage blaster device that discharges - Google Patents
Constant voltage blaster device that discharges Download PDFInfo
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- CN205355532U CN205355532U CN201620042018.2U CN201620042018U CN205355532U CN 205355532 U CN205355532 U CN 205355532U CN 201620042018 U CN201620042018 U CN 201620042018U CN 205355532 U CN205355532 U CN 205355532U
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- effect transistor
- field effect
- discharge
- constant voltage
- transformator
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Abstract
The utility model provides a constant voltage blaster device that discharges, including discharging controller, battery charging unit and discharge cell, the discharge cell includes capacitanc constant voltage discharge circuit, circuit arrangement is discharged to this constant voltage has field effect transistor M2 and field effect transistor M3's active clamping switch circuit, it has resistance R1 to establish ties in proper order between the power input end, R2 and R3, the the first signal input of LT3752 -1 chip is connected between resistance R1 and R2, the 2nd signal input part of LT3752 -1 chip connects between resistance R2 and R3, the first output of LT3752 -1 chip, the grid that field effect transistor M2 and field effect transistor M3 are connected respectively to the second output, the low pressure constant voltage discharge circuit that adopts LT3752 -1 chip design to go out, it is more stable to make this utility model discharge, and reliability and security height, this technical scheme not only can be applicable to nuclear reactor's blasting, can pass through the peripheral hardware moreover, acts on other electrical component of big current discharge in the twinkling of an eye, for example automobile point firearm, flash light etc. Wide applicability.
Description
Technical field
This utility model relates to electronic technology field, is specifically related to a kind of constant voltage discharge blaster device.
Background technology
In modern industry produces, exploder is a kind of very important instrument, and it is directly connected to the safety of production.Existing exploder is usually capacitor blasting machine, and this exploder adopts battery to charge to storage capacitor, and charging voltage is higher at more than 1000V, and when detonating, storage capacitor moment puts point (less than 4ms), and output voltage exponentially declines；The discharge mode of this initiator is called peak discharge, and this discharge mode persistent period is short, poor stability, reliability are low, it is impossible to be applied to the explosion of the high nuclear reactor of safety and reliability.
Utility model content
This utility model solves the problem in that the constant voltage blaster device providing a kind of constant low pressure discharge mode adopting safety and reliability high.Concrete technical scheme is as follows:
A kind of constant voltage discharge blaster device, including discharge controller, charhing unit and discharge cell, described discharge cell includes condenser type constant voltage discharge circuit, and this constant voltage discharge circuit is provided with field effect transistor M2 and field effect transistor M3；
The drain electrode of described field effect transistor M3 is connected with first end on the former limit of transformator K3, second end on the former limit of this transformator K3 is connected with one end of storage capacitor C1, the other end ground connection of this storage capacitor C1, the source electrode of described field effect transistor M3 is through resistance R21 ground connection, and grid is connected with described discharge controller the first outfan；
The source electrode of described field effect transistor M2 is connected on the first end of the former limit of described transformator K3, and drain electrode is connected with second end on the described former limit of transformator K3 after electric capacity C10, and grid is connected with described discharge controller the second outfan；
Described transformator K3 secondary the first end ground connection, second end is connected with diode D4 positive pole, this diode D4 negative pole is connected with inductance L7 the first end, this inductance L7 the second end is outfan, described inductance L7 the first end is also connected with the negative pole of diode D5, and the positive pole of this diode D5 is connected with described transformator K3 secondary the first end；
Being sequentially connected in series resistance R1, R2 and R3 between described storage capacitor C1 two ends, the first signal input part of described discharge controller is connected between resistance R1 and R2, and the secondary signal input of described discharge controller is connected between resistance R2 and R3.
This utility model is so work: storage capacitor C1 discharges, voltage linear reduces, R1, R2, R3 constitute bleeder circuit, the magnitude of voltage that discharge controller is detected by first, second signal input part, control firing potential and the ending discharge voltage of storage capacitor C1, and control the on off state of field effect transistor M2 and field effect transistor M3 and dutycycle when electric discharge, wherein field effect transistor M3 is main power switch.During electric discharge, field effect transistor M2, M3 have two kinds of mated condition, and one is that field effect transistor M3 opens, and field effect transistor M2 closes, and another kind is that field effect transistor M2 opens, and field effect transistor M3 closes, and both mated condition brisk circulation occur.Wherein when field effect transistor M3 opens, when field effect transistor M2 closes, transformator K3 secondary obtains electric, and then electric current arrives load again through diode D4, inductance L7 successively；When field effect transistor M2 opens, when field effect transistor M3 closes, transformator K3 secondary dead electricity, then inductance L7 inducts electricity, electric current is directly transmitted to load, and in very short time, the voltage at load two ends remains unchanged, on the other hand, owing to transformator K3 original edge voltage is played clamping action by electric capacity C10, the voltage on the former limit of transformator K3 is made to remain unchanged in very short time；When field effect transistor M3 quickly reopens, and field effect transistor M2 is re-closing off, transformer primary side output remains unchanged, and transformator K3 secondary obtains electric, and then electric current arrives load more successively after diode D4, inductance L7, makes the voltage at load two ends continue to remain unchanged；Within the short time that firing potential becomes ending discharge voltage, discharge controller controls the such high frequency circulation of both mated condition of field effect transistor M2, M3 and the continuous dutycycle adjusting main power switch according to voltage swing, reaches the purpose of constant voltage discharge.
For better realizing a kind of constant voltage discharge blaster device, may further be:
Described inductance L7 one end connects described diode D4 negative pole and described diode D5 negative pole respectively, and the other end is ground connection after electric capacity C12, and described inductance L7 is 52～60uH, and the output so making electric current is more stable；
The drain electrode of described field effect transistor M2 is also connected with second end on the described former limit of transformator K3 after electric capacity C11, inductance R18, eliminates oscillator signal, and the voltage making the former limit of transformator K3 is more stable；Described electric capacity C10 is 46～63nF, makes the voltage pulsation of active clamp electric capacity less than 10%；
First outfan of described discharge controller is connected through the grid of transformator K2 with described field effect transistor M2, plays coupling buffer action；
Described discharge controller is LT3752-1 chip, and test proves that LT3752-1 chip makes discharge circuit conversion ratio high, and makes output voltage more stable.
The beneficial effects of the utility model are: adopt the constant low pressure discharge circuit designed of LT3752-1 chip, make the electric discharge of this utility model more stable, and reliability and safety high；This technical scheme is possible not only to be applicable to the explosion of nuclear reactor, and can pass through peripheral hardware, acts on other electric components needing transient large current discharge, for instance igniter for automobile, flash lamp etc., widely applicable.
Accompanying drawing explanation
Fig. 1 is this practicality exploder structured flowchart；
Fig. 2 is discharge circuit schematic diagram in this utility model；
Fig. 3 is the storage capacitor C1 voltage oscillogram of this utility model performance test；
Fig. 4 is the output voltage waveform of this utility model performance test.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, so that advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus protection domain of the present utility model being made apparent clear and definite defining.
As shown in Figure 1, 2: a kind of constant voltage discharge blaster device, including discharge controller, charhing unit and discharge cell, discharge cell includes condenser type constant voltage discharge circuit, this constant voltage discharge circuit is provided with field effect transistor M2 and field effect transistor M3, the drain electrode of field effect transistor M3 is connected with the one end on the former limit of transformator K3, and source electrode is through resistance R21 ground connection, and grid is connected with the first outfan of LT3752-1 chip, the other end on the former limit of transformator K3 is connected with storage capacitor C1 one end, electric capacity C1 other end ground connection；The source electrode of field effect transistor M2 is connected between the former limit of transformator K3 and field effect transistor M3, drain electrode is connected with the other end on the former limit of transformator K3 after electric capacity C10, drain electrode is also connected with the other end on the former limit of transformator K3 after electric capacity C11, inductance R18, grid second outfan with LT3752-1 chip after transformator K2 is connected, and wherein electric capacity C10 is 47nF；
One end, transformator K2 former limit ground connection, the other end first outfan with LT3752-1 chip after electric capacity C7, R16 is connected, secondary one end is connected with the source electrode of field effect transistor M2, the other end is connected through the grid of electric capacity C8 and field effect transistor M2, electric capacity C9, resistance R17, diode D1 are all connected in parallel between the source electrode of field effect transistor M2 and grid, and wherein diode D1 negative pole is connected on the grid of field effect transistor M2；
Transformator K3 secondary one end is connected with diode D4 positive pole, and this diode D4 negative pole is connected with the transformator K3 secondary other end after inductance L7, load resistance R22；Inductance L7 is also connected with diode D5 positive pole after load resistance R22, and diode D5 negative pole is received between inductance L7 and diode D4, and load resistance R22 one end is connected with inductance L7, other end ground connection；Inductance L7 one end connects diode D4 negative pole and diode D5 negative pole respectively, and the other end is ground connection after electric capacity C12, and diode D4, D5 all adopt fast recovery diode, inductance L7 to be 56uH；
Resistance R1, R2 and R3 it is in series with between storage capacitor two ends, three big resistance R1, R2 and R3 constitute bleeder circuit, first signal input part of LT3752-1 chip is connected between resistance R1 and R2, and the secondary signal input of LT3752-1 chip is connected between resistance R2 and R3.
As shown in Figure 3,4, by storage capacitor discharge waveform it can be seen that firing potential is 218V, termination discharge voltage is 93.6V；From output voltage waveforms it can be seen that initial time of effectively discharging is 7.0ms, voltage 24.0V, the discharge off time is 29.8ms, and voltage is 24.4V, and effective discharge period is 22.8ms, and thus can calculate energy conversion efficiency is 85.5%.
Claims (5)
1. a constant voltage discharge blaster device, including discharge controller, charhing unit and discharge cell, it is characterised in that: described discharge cell includes condenser type constant voltage discharge circuit, and this constant voltage discharge circuit is provided with field effect transistor M2 and field effect transistor M3；
The drain electrode of described field effect transistor M3 is connected with first end on the former limit of transformator K3, second end on the former limit of this transformator K3 is connected with one end of storage capacitor C1, the other end ground connection of this storage capacitor C1, the source electrode of described field effect transistor M3 is through resistance R21 ground connection, and grid is connected with described discharge controller the first outfan；
The source electrode of described field effect transistor M2 is connected on the first end of the former limit of described transformator K3, and drain electrode is connected with second end on the described former limit of transformator K3 after electric capacity C10, and grid is connected with described discharge controller the second outfan；
Described transformator K3 secondary the first end ground connection, second end is connected with diode D4 positive pole, this diode D4 negative pole is connected with inductance L7 the first end, this inductance L7 the second end is outfan, described inductance L7 the first end is also connected with the negative pole of diode D5, and the positive pole of this diode D5 is connected with described transformator K3 secondary the first end；
Being in series with resistance R1, R2 and R3 between described storage capacitor C1 two ends, the first signal input part of described discharge controller is connected between resistance R1 and R2, and the secondary signal input of described discharge controller is connected between resistance R2 and R3.
2. a kind of constant voltage discharge blaster device according to claim 1, it is characterised in that: described inductance L7 one end connects described diode D4 negative pole and described diode D5 negative pole respectively, and the other end is ground connection after electric capacity C12, and described inductance L7 is 52～60uH.
3. a kind of constant voltage discharge blaster device according to claim 1, it is characterised in that: the drain electrode of described field effect transistor M2 is also connected with second end on the described former limit of transformator K3 after electric capacity C11, inductance R18；Described electric capacity C10 is 46～63uF.
4. a kind of constant voltage discharge blaster device according to claim 1, it is characterised in that: the second outfan of described discharge controller is connected through the grid of transformator K2 with described field effect transistor M2.
5. a kind of constant voltage discharge blaster device according to claim 1 or 4, it is characterised in that: described discharge controller is LT3752-1 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620042018.2U CN205355532U (en) | 2016-01-15 | 2016-01-15 | Constant voltage blaster device that discharges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620042018.2U CN205355532U (en) | 2016-01-15 | 2016-01-15 | Constant voltage blaster device that discharges |
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| Publication Number | Publication Date |
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| CN205355532U true CN205355532U (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620042018.2U Expired - Fee Related CN205355532U (en) | 2016-01-15 | 2016-01-15 | Constant voltage blaster device that discharges |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112924801A (en) * | 2021-03-06 | 2021-06-08 | 中北大学 | Voltage segmented adjustable voltage-current characteristic testing device for electric exploding foil and charging and discharging method |
-
2016
- 2016-01-15 CN CN201620042018.2U patent/CN205355532U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112924801A (en) * | 2021-03-06 | 2021-06-08 | 中北大学 | Voltage segmented adjustable voltage-current characteristic testing device for electric exploding foil and charging and discharging method |
| CN112924801B (en) * | 2021-03-06 | 2022-08-09 | 中北大学 | Voltage segmented adjustable voltage-current characteristic testing device for electric exploding foil and charging and discharging method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20170115 |