KR20170014227A - A power supplying circuit having improved stability against external environmental change - Google Patents
A power supplying circuit having improved stability against external environmental change Download PDFInfo
- Publication number
- KR20170014227A KR20170014227A KR1020150107209A KR20150107209A KR20170014227A KR 20170014227 A KR20170014227 A KR 20170014227A KR 1020150107209 A KR1020150107209 A KR 1020150107209A KR 20150107209 A KR20150107209 A KR 20150107209A KR 20170014227 A KR20170014227 A KR 20170014227A
- Authority
- KR
- South Korea
- Prior art keywords
- power supply
- power
- capacitor
- storage device
- circuit
- Prior art date
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/10—Initiators therefor
- F42B3/12—Bridge initiators
- F42B3/13—Bridge initiators with semiconductive bridge
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc sources
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Direct Current Feeding And Distribution (AREA)
- Stand-By Power Supply Arrangements (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention includes a power supply unit and a power storage device for storing power supplied from the power supply unit and supplying power to a necessary device, and a polymer capacitor is used as the power storage device. To an improved power supply circuit.
Description
The present invention relates to a power supply circuit with improved stability against external environment changes.
Explosives, such as explosives, are manufactured to be stable to impact and flames due to stability problems, so extra external energy is needed to cause an explosion. Recent interest in blasting technology is the development and control of detonators that can expect maximum blasting effects according to the detonation system rather than developing optimal detonation systems.
The development of industrial explosives as well as the development of industrial primers are emphasizing stability and precision. In terms of stability, the primer component of the primer is developed in such a way as to detonate from the detonation due to the structural change in the primer from the primer explosion method due to detonation of the past explosion using the insensitive drug instead of the sensitive primer.
In terms of precision, control of detonators is emphasized. These detonators can be broadly categorized as non-electrical, electrical, or electronic primers. Primers are used according to the delay time difference. They are divided into a primed primer and a delayed primer primer. A commonly used primer is divided into DS (deci second) primer and MS (millisecond)
The recently developed electronic primer has a built-in electronic IC chip, which has a very precise parallax (within 0.1 ~ 0.2% of error range) of 1 ~ 2ms, better vibration control, control blasting blasting effect and contour blasting in tunnel of the tunnel are expected to reduce the amount of concrete installation and reduce the damage area of the surrounding rocks.
The electronic primer developed for the special use by the ultra precise time difference is used for the special purpose in advanced countries such as USA, Europe and Japan. It is similar to the electronic primer but has the electronic control board (IC circuit, electronic chip) There is a difference in that time can be removed. The basic structure is composed of hardware such as an electronic primer, accessories, shredder, dedicated programs and other accessories.
In the case of an electronic primer, an electronic circuit is applied, in which a capacitor is applied for signal control and noise removal for precise control.
Korean Patent Application No. 10-2013-0010656 is directed to an explosion circuit of an electronic primer, wherein the detonation circuit of an electronic primer is an explosion circuit of an electronic primer having an input circuit and a control circuit, An ignition capacitor for charging a power source inputted through the control circuit and discharging the charged power source when the ignition command is issued from the control circuit; A charging FET for supplying power to the ignition capacitor when the ignition capacitor is charged and supplied through the input circuit; And an ignition output FET that is turned on at the ignition output of the ignition capacitor to apply the charge power discharged from the ignition capacitor to the ignition receptacle.
However, the aerodynamic capacitor used in the detonation circuit is a general electrolytic capacitor, and has a small capacity and high resistance to cope with noise or external noise inside the circuit. Also, considering the blasting environment, there is a problem that the stability is insufficient due to the influence of the surrounding environment such as temperature, humidity, especially pressure change.
Specifically, for example, according to the Devonshire scalar model, the correlation between the electric field E and the dielectric polarization P and the intrinsic inverse dielectric susceptibility X -1 (intrinsic) is as follows.
E = 2? (T) P + 4? P 3 + 6? P 5
X -1 (intrinsic) (T) = (∂E / ∂P) = 2α (T) + 12βP 2 + 30γP 4
The large signal genetic susceptibility X -1 is the sum of the two factors as follows.
X -One= X -One intrinsic+X -One (extrinsic)
In general, X -1 (intrinsic) is known as a function of temperature, electric field, mechanical stress and frequency. Studies have also shown that X 1 (extrinsic) is also affected by temperature, electric field, and mechanical stress (A. Amin and LE Cross, Jpn. J. Appl. Phys., 24 Suppl 24-2, 229 (1985); A. Amin, RE Newnham and LE Cross, Phys. Rev. B, 34 (3), 1595 (1986)).
Thus, the inherent yield rate is the temperature, mechanical stress. Because of the influence of external factors such as vibration, the aerodynamic capacitors used in existing aerial circuits are always subject to stability due to the influence of the surrounding environment.
SUMMARY OF THE INVENTION It is an object of the present invention to provide a highly reliable power supply circuit capable of maintaining the output without discharging the charging pressure even in a change of the external environment such as temperature, humidity, mechanical stress or pressure .
In order to solve the above-described problems,
A power supply unit, and a power storage device for storing power supplied from the power supply unit and supplying power to a necessary device, wherein a polymer capacitor is used as the power storage device.
According to one embodiment, a power supply unit supplies power to the power storage device through a reverse current prevention diode and a resistor, and a zener diode for adjusting a maximum voltage of power supplied to the power storage device is connected to the power storage device front end (Input unit).
In this case, the resistor may include a first resistor at the front end of the Zener diode and a second resistor at the rear end of the Zener diode.
According to another embodiment, the power supplied from the power supply unit may be supplied to the power storage device through a reverse current prevention diode, and a low-dropout (LDO) regulator may be provided at the rear end of the power storage device.
According to the present invention, the power storage device may be a polymer capacitor that can withstand an applied voltage of 6 V or more.
In particular, the power supply circuit may be a primer detonator circuit.
The present invention also provides a military explosive to which a power supply circuit is applied.
The power supply circuit according to the present invention uses a polymer capacitor to provide a super precise control because of little RC delay, and is excellent in noise canceling function. In addition, since the polymer capacitor is not a liquid component, it is excellent in stability because it is hardly influenced by environmental influences such as temperature and humidity, particularly, important pressure change. In addition, the circuit configuration that maximizes the stability of the capacitor can minimize the malfunction due to charging loss due to external stimulation, voltage leakage, and no signal transmission.
1 schematically shows a power supply circuit configuration using a polymer capacitor according to an embodiment of the present invention.
2 shows a configuration of a power supply circuit according to another embodiment of the present invention.
3 shows a configuration of a power supply circuit according to another embodiment of the present invention.
4 is a graph showing the output test results of the power supply circuit according to the comparative example before external noise application.
FIG. 5 is a result of output test after application of external noise to the power supply circuit according to the comparative example.
FIG. 6 is a result of an output test after application of external noise to the power supply circuit shown in FIG.
FIG. 7 shows the output test result after the external noise is applied to the power supply circuit shown in FIG.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings in order to facilitate a person skilled in the art to easily carry out the technical idea of the present invention. . In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.
Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
1 illustrates a power supply circuit configuration using a polymer capacitor according to one embodiment.
A Zener diode for supplying the power supplied from the power supply unit to the polymer capacitor C1 through the reverse current prevention diode D1 and the resistor R1 and for adjusting the maximum voltage of the power supplied to the capacitor C1 ZD1 may be included in the former stage of the capacitor C1.
The power supply unit preferably includes a voltage application unit and a rectification circuit. The current from the power supply unit passes through a reverse current prevention diode (D1), passes through a resistor (R1), is adjusted to a proper current level, Polymer capacitor C1 which is a device. The diode D1 is necessary to prevent the reverse flow of the current when the power is cut off.
A zener diode ZD1 is provided at the previous stage of the capacitor C1 to determine the maximum voltage according to the power supply voltage (at point B) of the micro control unit (MCU) to which the capacitor C1 is to be supplied with electric power.
It is a feature of the present invention to use a polymer capacitor instead of a conventional electrolytic capacitor as the capacitor C1. The polymer capacitor uses a conductive polymer having electrical conductivity as an electrolyte as a solid electrolyte in order to improve the resistance characteristic of a capacitor, while a conventional capacitor uses a liquid electrolyte as an electrolyte. Polymer capacitors have low resistance less than 1/10 compared with general electrolytic capacitors. They have very low RC delay due to low resistance, and they have superb precision control and excellent noise rejection. In addition, since the polymer capacitor does not use a liquid component, it is stable to temperature and humidity, particularly, pressure change. Therefore, the polymer capacitor is excellent in stability against changes in the external environment because it is hardly affected by the surrounding environment.
It is preferable to use a polymer capacitor based on aluminum and a polymer capacitor that can withstand an applied voltage of 6 V or more. For example, aluminum polymer capacitors disclosed in Korean Patent Registration Nos. 10-1524168, 10-1251990 and 10-1252681 may be used, but the present invention is not limited thereto.
2 shows a power supply circuit configuration according to another embodiment of the present invention.
2, the first resistor R1 at the previous stage of the Zener diode ZD1 and the second resistor R2 at the end of the Zener diode ZD1, that is, at the previous stage of the capacitor C1. When the energy stored in the capacitor C1 is reduced and the energy of the noise V N applied to the capacitor C1 becomes higher, the energy charged in the capacitor C1 may be discharged through the zener diode ZD1 To prevent this, or to reduce the amount of discharge, a second resistor R2 may be added.
3 shows a configuration of a power supply circuit according to another embodiment of the present invention.
In FIG. 3, the power supplied from the power supply unit is supplied to the capacitor C1 through the reverse current prevention diode D1, and a low-dropout (LDO) regulator is provided at the rear end of the capacitor C1. An LDO regulator is a linear regulator that uses a transistor or FET that operates in a linear regime to generate the desired output voltage by removing excess voltage from the input voltage. The minimum input voltage for the output voltage differential required for the regulator to keep the output voltage within 100mV nominal is called the dropout voltage.
The use of an LDO regulator eliminates the zener diode ZD1 that was needed in Figures 1 and 2 and can withstand a significant range of input changes (about 30V). Also, since the capacitor C1 only stores energy and there is no direct current flow path, there is no fear of discharge. However, since the internal elements of the LDO regulator are repeatedly turned on / off, it is desirable that a small capacity capacitor (C2) is added to the output side of the LDO regulator for buffering action.
Fig. 4 shows the results of testing the output power of the power supply circuit using the conventional electrolytic capacitor before external noise.
The Zener diode (ZD1) was used to supply the MCU power supply voltage to the point B up to 5.6V, and the power supply section maintained the DC wire voltage (V A ) of 7.9V for more than 4 seconds. Energy was stored using a 6.3V, 220uF electrolytic capacitor and simulated at a load size of 50uA. As a result, it can be seen that the final output (V B ) is maintained at 5 V or more for 10 seconds or more.
5 is a result of testing the output of the power supply circuit of FIG. 4 after application of external noise.
A noise model V N was added to the front of the capacitor (C1) to simulate changes in the external environment. Specifically, a pulse of peak-to-peak 4 V was input every 0.5 s for 0.1 ms at the time of 5.5 seconds. As a result, it was confirmed that a large amount of current flows to the Zener diode ZD1 and energy charged in the capacitor C1 is lost. After 6s, V B falls below 2V and the signal is not delivered because it is below MCU operating power range (2 ~ 5.5V). That is, if the circuit is an explosion circuit, the current of the capacitor is discharged due to the noise generated in the blasting, and the blasting signal is not transmitted.
Therefore, it can be seen that the existing power supply circuit is vulnerable to changes in the external environment such as a pressure change over a certain level.
FIG. 6 is a result of an output test after application of external noise to the power supply circuit shown in FIG.
The other conditions were the same except that a second resistor (100 OMEGA) was added to the rear of the Zener diode ZD1. When the noise condition is the same, it can be confirmed that a voltage of about 5 V is maintained for 10 seconds. That is, the current discharged through the zener diode due to the presence of the second resistor. The size of the second resistor is an example, and the size of the second resistor preferably can be appropriately determined through various simulations according to the circuit configuration.
FIG. 7 shows the output test result after the external noise is applied to the power supply circuit shown in FIG. If the LDO regulator is used, it is preferable to use a capacitor that can withstand the high withstand voltage if the input value is the same value. Therefore, the capacity of the capacitor (C1) is set to 16V and 220uF, and a small capacity capacitors Respectively.
As a result of applying LDO regulator, it can be confirmed that zener diode or the first resistor is not necessary and the voltage of about 2.5V which belongs to the MCU driving voltage range is maintained despite the noise.
As described above, since the power supply circuit according to the present invention maintains the output voltage of a certain level or higher despite the external noise, the possibility of malfunction or malfunction of the MCU can be greatly reduced.
The power supply circuit according to the present invention can be applied to various applications. It is possible to apply it to an explosion circuit of a primer because it is excellent in stability against changes in the external environment and enables precise power control.
The primer-detonating circuit generally has an input circuit and a control circuit, and operates in such a manner as to charge the voltage input from the control circuit through the input circuit at the charge command and discharge the charged voltage at the time of the detonation command from the control circuit. The discharged voltage flows in the ignition direction and ignites the ignition. The configuration of the detonation circuit can be referred to, for example, in Korean Patent Application No. 10-2013-0010656.
Such an explosion circuit can be advantageously applied to a variety of explosives, particularly military explosives, which are used for demolishing rocks and for blowing up waste buildings.
Claims (7)
And a power storage device for storing power supplied from the power supply unit and supplying power to the required device,
Wherein a polymer capacitor is used as said power storage device.
And a zener diode for controlling the maximum voltage of the power supplied to the power storage device is included in the front end of the power storage device, the power supply device comprising: a power supply for supplying power to the power storage device through a reverse current prevention diode and a resistor, Supply circuit.
Wherein the resistor comprises a first resistor at the front of the zener diode and a second resistor at the back of the zener diode.
Wherein the power supply circuit supplies power supplied from the power supply unit to the power storage device through a reverse current prevention diode and has a low-dropout (LDO) regulator at the rear end of the power storage device.
Wherein the power storage device is a polymer capacitor withstanding an applied voltage of 6V or more.
A power supply circuit that is a detonator circuit for a primer.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150107209A KR20170014227A (en) | 2015-07-29 | 2015-07-29 | A power supplying circuit having improved stability against external environmental change |
| PCT/KR2016/008285 WO2017018826A2 (en) | 2015-07-29 | 2016-07-28 | Electric power supplying circuit having improved-stability against external environment change |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150107209A KR20170014227A (en) | 2015-07-29 | 2015-07-29 | A power supplying circuit having improved stability against external environmental change |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20170014227A true KR20170014227A (en) | 2017-02-08 |
Family
ID=57884832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020150107209A KR20170014227A (en) | 2015-07-29 | 2015-07-29 | A power supplying circuit having improved stability against external environmental change |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20170014227A (en) |
| WO (1) | WO2017018826A2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190108411A (en) * | 2018-03-14 | 2019-09-24 | 숭실대학교산학협력단 | Battery Charging-Discharging Device Using a Bidirectional Parallel Linear Regulator and Control Method thereof, Recording Medium for Performing the Method |
| KR102213828B1 (en) * | 2020-11-17 | 2021-02-09 | 한창기술 주식회사 | Automatic expansion device with detonating circuit |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000018466A (en) * | 1998-09-02 | 2000-04-06 | 이원배 | Electronic ignitor |
| DE19912688B4 (en) * | 1999-03-20 | 2010-04-08 | Orica Explosives Technology Pty. Ltd., Melbourne | Method for exchanging data between a device for programming and triggering electronic detonators and the detonators |
| JP4006277B2 (en) * | 2002-07-02 | 2007-11-14 | 旭化成ケミカルズ株式会社 | Electronic detonator |
| CN1773640B (en) * | 2005-09-06 | 2010-05-12 | 万裕三信电子(东莞)有限公司 | Solid electrolytic capacitor and producing method thereof |
| US9235298B2 (en) * | 2011-11-29 | 2016-01-12 | Eastman Kodak Company | Transparent capacitor with multi-layer grid structure |
-
2015
- 2015-07-29 KR KR1020150107209A patent/KR20170014227A/en active Search and Examination
-
2016
- 2016-07-28 WO PCT/KR2016/008285 patent/WO2017018826A2/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190108411A (en) * | 2018-03-14 | 2019-09-24 | 숭실대학교산학협력단 | Battery Charging-Discharging Device Using a Bidirectional Parallel Linear Regulator and Control Method thereof, Recording Medium for Performing the Method |
| KR102213828B1 (en) * | 2020-11-17 | 2021-02-09 | 한창기술 주식회사 | Automatic expansion device with detonating circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017018826A3 (en) | 2017-05-11 |
| WO2017018826A2 (en) | 2017-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105304131B (en) | Apply to the charge pump system and its corresponding control methods of memory cell | |
| CN101325411B (en) | Slow starting circuit for electrifying DC power supply | |
| MX2019009240A (en) | Electronic ignition circuit and method for use. | |
| CN105846541A (en) | Power-down protection circuit | |
| CN105043173B (en) | Delayed ignition controls circuit | |
| KR101394453B1 (en) | Electronic detonation apparatus and electronic detonation blasting system | |
| KR20170014227A (en) | A power supplying circuit having improved stability against external environmental change | |
| ATE384930T1 (en) | STAGED LOADING OF TRACKERS, SUCH AS IN AN ELECTRONIC BLASTING SYSTEM | |
| CA2680450C (en) | Detonator ignition protection circuit | |
| US9779827B2 (en) | Voltage control circuit for memory cell and the method thereof | |
| US10260851B2 (en) | System for controlling at least one electronic detonator | |
| KR101336424B1 (en) | Detonator circuit of electronic detonator | |
| CN204881359U (en) | Detonating control circuit of time delay | |
| CN111102885B (en) | Ignition device | |
| CN115235303B (en) | Anti-interference method and system for electronic detonator | |
| TW201616761A (en) | A clamping circuit | |
| CN110445484A (en) | A kind of power supply delays electrification circuit and design method | |
| CN115289923B (en) | System and method for improving ignition reliability of electronic detonator, electronic detonator and medium | |
| US11646660B2 (en) | Energetic firing device boosting system voltage as required for energetic initiation | |
| CN117308711A (en) | Electronic detonator circuit and electronic detonator | |
| CN216361543U (en) | Electronic delay ignition circuit for interference bomb | |
| US10853549B2 (en) | Method and apparatus for simulating the generated charge profile of piezoelectric elements due to arbitrary shock loading | |
| EP2759059B1 (en) | Improved squib control circuit | |
| ZA202202745B (en) | Safely testing or programming detonators in an electronic blasting system | |
| CN115289924A (en) | System, method, equipment and medium for improving antistatic interference capability of electronic detonator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| AMND | Amendment | ||
| AMND | Amendment |