CN110912439B - High-voltage pulse booster circuit based on pulse transformer and adjusting method - Google Patents
High-voltage pulse booster circuit based on pulse transformer and adjusting method Download PDFInfo
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- CN110912439B CN110912439B CN201911112730.XA CN201911112730A CN110912439B CN 110912439 B CN110912439 B CN 110912439B CN 201911112730 A CN201911112730 A CN 201911112730A CN 110912439 B CN110912439 B CN 110912439B
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- capacitor
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- booster circuit
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M11/00—Power conversion systems not covered by the preceding groups
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P9/00—Electric spark ignition control, not otherwise provided for
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/53—Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback
- H03K3/55—Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback the switching device being a gas-filled tube having a control electrode
Abstract
The invention provides a high-voltage pulse booster circuit based on a pulse transformer, which comprises an energy storage circuit and a booster circuit, wherein the energy storage circuit receives high-voltage direct current, is connected with the booster circuit and is used for storing the electric energy of the received high-voltage direct current; the booster circuit comprises a switching tube V1, a pulse transformer T1 and a capacitor C2, and the positive end of the switching tube V1 is connected with the energy storage circuit; a primary coil terminal d and a secondary coil terminal a of the pulse transformer T1 are homonymous terminals; a primary coil terminal b and a secondary coil terminal c of the pulse transformer T1 are homonymous terminals; the negative end of the switch tube V1 is connected with a secondary coil terminal a and a primary coil terminal b of the pulse transformer T1 and is grounded; a primary coil terminal d of the pulse transformer T1 is connected with one end of a capacitor C2, and the other end of the capacitor C2 is connected with the positive end of a switch tube V1; the secondary coil terminal c of the pulse transformer T1 outputs high-voltage pulse electricity.
Description
Technical Field
The invention belongs to the field of engine ignition, and particularly relates to a high-voltage pulse booster circuit based on a pulse transformer.
Background
The circuit principle of the capacitor discharge type engine ignition system is to convert low voltage electricity of an airplane into high voltage electricity. The ignition system firstly stores high-voltage electric energy in an energy storage capacitor, when the stored voltage reaches a certain value, the electric energy is released to the electric nozzle through a switch tube, the electric nozzle generates an electric spark, the ignition system repeatedly charges and discharges, and a series of electric sparks are generated on the electric nozzle.
After the low voltage of an airplane is boosted by an ignition device transformer in a discharge circuit of a traditional capacitance discharge type engine ignition system, electric energy is stored in an energy storage capacitor through a rectifier tube, when the voltage stored in the energy storage capacitor reaches the rated starting voltage of a switch tube, the switch tube is switched on, the electric energy is released to a power nozzle through an inductor, and the power nozzle forms electric spark. However, when the electric torch generates electric sparks, the ignition end face of the electric torch can generate electric corrosion continuously, the ignition voltage of the electric torch is increased gradually, and finally the electric torch cannot be excited by the voltage output by the ignition device to generate the electric sparks, so that the reliability of the system is reduced. The traditional method for improving the ignition reliability of the ignition system is to improve the reliability of the ignition nozzle, improve the electric corrosion resistance by improving the nozzle material, but have the common effect, or improve the reliability of the ignition system by increasing the number of ignition devices, but increase the cost and the volume.
Disclosure of Invention
The invention provides a high-voltage pulse booster circuit based on a pulse transformer, which does not increase the number of ignition systems or improve ignition nozzles to improve the ignition reliability of an engine.
In one aspect, the present invention provides a high voltage pulse boosting circuit based on a pulse transformer, the high voltage pulse boosting circuit includes an energy storage circuit and a boosting circuit,
the energy storage circuit receives the high-voltage direct current, is connected with the booster circuit and is used for storing electric energy of the received high-voltage direct current;
the booster circuit comprises a switch tube V1, a pulse transformer T1 and a capacitor C2, and the positive end of the switch tube V1 is connected with the energy storage circuit;
a primary coil terminal d and a secondary coil terminal a of the pulse transformer T1 are homonymous terminals; a primary coil terminal b and a secondary coil terminal c of the pulse transformer T1 are homonymous terminals; the negative end of the switching tube V1 is connected with a secondary coil terminal a and a primary coil terminal b of the pulse transformer T1 and is grounded;
a primary coil terminal d of the pulse transformer T1 is connected with one end of a capacitor C2, and the other end of the capacitor C2 is connected with the positive end of a switching tube V1; the secondary coil terminal c of the pulse transformer T1 outputs high-voltage pulse electricity.
Furthermore, the boost circuit further comprises a resistor R2, one end of the resistor R2 is connected to the secondary coil terminal a and the primary coil terminal b of the pulse transformer T1, and the other end of the resistor R2 is grounded.
Further, the energy storage circuit comprises a capacitor C1 and a resistor R1, wherein one end of the capacitor C1 is connected with one end of the resistor R1 and receives high-voltage direct current; the other end of the capacitor C1 is connected with the other end of the resistor R1 and is grounded at the same time.
Further, the capacitance value of the capacitor C1 is greater than that of the capacitor C2.
Further, the capacitance C1 and the capacitance C2 are mica paper capacitors; the resistor R1 and the resistor R2 are high-temperature metal film resistors.
Further, the switch tube V1 is a gas switch tube.
In another aspect, there is provided a method for regulating a high voltage pulse booster circuit based on a pulse transformer, using the high voltage pulse booster circuit as described above, the method comprising,
one end of the capacitor C1 is connected with one end of the resistor R1 and receives high-voltage direct current; a secondary coil terminal c of the pulse transformer T1 outputs high-voltage pulse electricity;
and the turn ratio of the primary side and the secondary side of the pulse transformer T1 or the capacitance value of the capacitor C2 is adjusted to adjust the output value of the high-voltage pulse electricity.
In another aspect, an ignition system is provided, where the ignition system includes the above-mentioned high-voltage pulse boosting circuit, and the ignition system further includes a torch X1, and the high-voltage pulse boosting circuit is connected to the torch X1 through a cable.
The invention has the technical effects that: the problem that electric sparks cannot be generated by electric energy released by an ignition device due to the fact that the sparking voltage of an electric nozzle of a traditional capacitance discharge type engine ignition system is increased along with the increase of the service time is solved; the problem that the range of the output high-voltage pulse value of the traditional ignition system is small is solved. The invention creatively adds a pulse transformer and a high-frequency capacitor in the discharge circuit, can increase the pulse voltage released to the electric nozzle, has simple circuit structure, and can meet the use requirement of 215 ℃ high-temperature working environment. The booster circuit can effectively solve the problem that the electric nozzle does not generate electric sparks due to electric corrosion or other reasons, further improve the ignition reliability of an ignition system, and can output different high-voltage pulses according to different requirements of customers.
Drawings
Fig. 1 is a schematic diagram of a high-voltage pulse booster circuit based on a pulse transformer according to the present embodiment.
Detailed Description
Example 1
In this embodiment, a high-voltage pulse boosting circuit based on a pulse transformer is provided, where the high-voltage pulse boosting circuit includes an energy storage circuit and a boosting circuit; the energy storage circuit receives the high-voltage direct current, is connected with the booster circuit and is used for storing electric energy of the received high-voltage direct current; the booster circuit comprises a switch tube V1, a pulse transformer T1 and a capacitor C2, and the positive end of the switch tube V1 is connected with the energy storage circuit. A primary coil terminal d and a secondary coil terminal a of the pulse transformer T1 are homonymous terminals; a primary coil terminal b and a secondary coil terminal c of the pulse transformer T1 are homonymous terminals; and the negative end of the switching tube V1 is connected with a secondary coil terminal a and a primary coil terminal b of the pulse transformer T1 and is grounded. A primary coil terminal d of the pulse transformer T1 is connected with one end of a capacitor C2, and the other end of the capacitor C2 is connected with the positive end of a switch tube V1; the secondary coil terminal c of the pulse transformer T1 outputs high-voltage pulse electricity.
Specifically, fig. 1 is a schematic diagram of the high-voltage pulse boosting circuit based on the pulse transformer in this embodiment, and as shown in fig. 1, the connection manner of each device of the high-voltage pulse boosting circuit based on the pulse transformer in this embodiment is as follows: one end of the capacitor C1 and one end of the resistor R1 are connected with the positive end of the switch tube V1; the other end of the capacitor C1 is connected with the other end of the resistor R1 and is grounded at the same time; a primary coil terminal d and a secondary coil terminal a of the pulse transformer T1 are homonymous terminals; a primary coil terminal b and a secondary coil terminal c of the pulse transformer T1 are homonymous terminals; the negative end of the switch tube V1 is connected with a secondary coil terminal a and a primary coil terminal b of the pulse transformer T1 and one end of a resistor R2, and the other end of the resistor R2 is grounded; a primary coil terminal d of the pulse transformer T1 is connected with one end of a capacitor C2, and the other end of the capacitor C2 is connected with the positive end of a switch tube V1; the secondary coil terminal c of the pulse transformer T1 outputs high-voltage pulse electricity.
The capacitance value of the energy storage capacitor C1 is larger than that of the capacitor C2. The input of the circuit is constant value high voltage pulse, and the output is adjustable high voltage pulse.
Further, the capacitance C1 and the capacitance C2 are mica paper capacitors; the resistor R1 and the resistor R2 are high-temperature metal film resistors, and the switch tube V1 is a gas switch tube. Can meet the use requirement of high-temperature working environment up to 215 ℃.
Further, the resistor R2 may form an LR oscillation circuit with the secondary coil and the nozzle of the pulse transformer T1, extending the spark duration.
The high-voltage pulse booster circuit based on the pulse transformer of the embodiment has the following functions: the energy storage capacitor C1 is used for storing electric energy; the resistor R1 is used for protecting the capacitor C1; the switching tube V1 is used for conducting the energy storage capacitor C1, the pulse transformer T1, the high-frequency oscillation circuit and the electric nozzle circuit when the voltage of the energy storage capacitor C1 reaches the rated value of the switching tube; a pulse transformer T1 for outputting high-voltage pulses by using the mutual inductance between the primary coil and the secondary coil; the capacitor C2 is used for forming an inductance and capacitance high-frequency oscillation loop with the primary coil of the pulse transformer T1 and the resistor R2; the resistor R2, the secondary coil of the pulse transformer T1, and the nozzle form an LR oscillation circuit, and the spark duration is extended.
Example 2
The method for utilizing the high-voltage pulse booster circuit based on the pulse transformer comprises the following steps: before the switch tube V1 is switched on, the energy storage capacitor C1 and the capacitor C2 are charged simultaneously, a voltage value is induced at the secondary side of the pulse transformer T1, and the voltage value is preset at two ends of the electric nozzle. When the charging voltage of the energy storage capacitor C1 reaches the rated value of the switching tube to drive the switching tube V1 to be switched on, the energy storage capacitor C1, the switching tube V1, the secondary coil of the pulse transformer T1 and the electric nozzle X1 form an inductance-capacitance low-frequency oscillation loop; the capacitor C2 and the primary coil of the pulse transformer T1 form an inductance-capacitance high-frequency oscillation loop; and the inductance-capacitance low-frequency oscillation circuit and the inductance-capacitance high-frequency oscillation circuit are superposed at the secondary induction high voltage of the pulse transformer T1 to form output voltage higher than that of the energy storage capacitor C1 when the energy storage capacitor C1 is conducted, and the output voltage is released to the electric nozzle.
The invention has the advantages and positive effects that: the problem that the electric energy released by an ignition device cannot generate electric sparks as the ignition voltage of an electric nozzle of a traditional capacitance discharge type engine ignition system is increased along with the increase of the service time is solved; the problem that the range of the output high-voltage pulse value of the traditional ignition system is small is solved. The invention adds a pulse transformer and a high-frequency capacitor in the discharge circuit, which can increase the pulse voltage released to the electric nozzle, and the circuit has simple structure, and can meet the use requirement of 215 ℃ high-temperature working environment. The booster circuit can effectively solve the problem that the electric nozzle does not generate electric sparks due to electric corrosion or other reasons, further improve the ignition reliability of an ignition system, and can output different high-voltage pulses according to different requirements of customers.
Claims (8)
1. The utility model provides a high-voltage pulse boost circuit based on pulse transformer which characterized in that: the high-voltage pulse booster circuit comprises an energy storage circuit and a booster circuit;
the energy storage circuit receives the high-voltage direct current, is connected with the booster circuit and is used for storing electric energy of the received high-voltage direct current;
the booster circuit comprises a switching tube V1, a pulse transformer T1 and a capacitor C2, and the positive end of the switching tube V1 is connected with the energy storage circuit;
a primary coil terminal d and a secondary coil terminal a of the pulse transformer T1 are homonymous terminals; a primary coil terminal b and a secondary coil terminal c of the pulse transformer T1 are homonymous terminals; the negative end of the switching tube V1 is connected with a secondary coil terminal a and a primary coil terminal b of the pulse transformer T1 and is grounded;
a primary coil terminal d of the pulse transformer T1 is connected with one end of a capacitor C2, and the other end of the capacitor C2 is connected with the positive end of a switch tube V1; a secondary coil terminal c of the pulse transformer T1 outputs high-voltage pulse electricity; wherein, the circuit can be used in a high-temperature working environment of 215 ℃.
2. The high-voltage pulse booster circuit according to claim 1, characterized in that: the booster circuit further comprises a resistor R2, one end of the resistor R2 is connected with a secondary coil terminal a and a primary coil terminal b of the pulse transformer T1, and the other end of the resistor R2 is grounded.
3. The high-voltage pulse booster circuit according to claim 1, characterized in that: the energy storage circuit comprises a capacitor C1 and a resistor R1, wherein one end of the capacitor C1 is connected with one end of the resistor R1 and receives high-voltage direct current; and the other end of the capacitor C1 is connected with the other end of the resistor R1 and is grounded at the same time.
4. The high-voltage pulse booster circuit according to claim 3, characterized in that: the capacitance value of the capacitor C1 is larger than that of the capacitor C2.
5. The high-voltage pulse booster circuit according to claim 3, characterized in that: the capacitor C1 and the capacitor C2 are mica paper capacitors; the resistor R1 and the resistor R2 are high-temperature metal film resistors.
6. The high-voltage pulse booster circuit according to claim 5, characterized in that: the switch tube V1 is a gas switch tube.
7. A method for regulating a high-voltage pulse booster circuit based on a pulse transformer, using a high-voltage pulse booster circuit according to any one of claims 1 to 6, characterized in that: the method comprises the following steps of,
one end of the capacitor C1 is connected with one end of the resistor R1 and receives high-voltage direct current; a secondary coil terminal c of the pulse transformer T1 outputs high-voltage pulse electricity;
adjusting the turn ratio of the primary side and the secondary side of the pulse transformer T1 or the capacitance value of the capacitor C2, and adjusting the output value of the high-voltage pulse electricity; wherein, the circuit can be used in a high-temperature working environment of 215 ℃.
8. An ignition system comprising the high-voltage pulse booster circuit according to any one of claims 1 to 6, characterized in that the ignition system further comprises a torch X1, and the high-voltage pulse booster circuit is connected with the torch X1 through a cable; wherein, the circuit can be used in a high-temperature working environment of 215 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911112730.XA CN110912439B (en) | 2019-11-14 | 2019-11-14 | High-voltage pulse booster circuit based on pulse transformer and adjusting method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911112730.XA CN110912439B (en) | 2019-11-14 | 2019-11-14 | High-voltage pulse booster circuit based on pulse transformer and adjusting method |
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| CN110912439A CN110912439A (en) | 2020-03-24 |
| CN110912439B true CN110912439B (en) | 2023-03-14 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB893023A (en) * | 1958-08-19 | 1962-04-04 | Bendix Corp | Electrical pulse divider device |
| CN201315550Y (en) * | 2008-12-19 | 2009-09-23 | 东北农业大学 | High pressure impulse generator based on triple-pole ignition switch |
| CN103997252A (en) * | 2014-05-13 | 2014-08-20 | 重庆大学 | High-frequency and high-voltage pulse generation circuit |
| CN106992687A (en) * | 2017-05-10 | 2017-07-28 | 深圳戴普森新能源技术有限公司 | A kind of single tube Forward- flyback voltage multiplying rectifier power circuit |
| CN209017005U (en) * | 2018-12-14 | 2019-06-21 | 珠海格力电器股份有限公司 | Driving circuit, power electronic equipment and energy device |
| CN109981082A (en) * | 2019-04-30 | 2019-07-05 | 中国工程物理研究院流体物理研究所 | A kind of nuclear electromagnetic pulse simulator clock based on photoconductive switch |
-
2019
- 2019-11-14 CN CN201911112730.XA patent/CN110912439B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB893023A (en) * | 1958-08-19 | 1962-04-04 | Bendix Corp | Electrical pulse divider device |
| CN201315550Y (en) * | 2008-12-19 | 2009-09-23 | 东北农业大学 | High pressure impulse generator based on triple-pole ignition switch |
| CN103997252A (en) * | 2014-05-13 | 2014-08-20 | 重庆大学 | High-frequency and high-voltage pulse generation circuit |
| CN106992687A (en) * | 2017-05-10 | 2017-07-28 | 深圳戴普森新能源技术有限公司 | A kind of single tube Forward- flyback voltage multiplying rectifier power circuit |
| CN209017005U (en) * | 2018-12-14 | 2019-06-21 | 珠海格力电器股份有限公司 | Driving circuit, power electronic equipment and energy device |
| CN109981082A (en) * | 2019-04-30 | 2019-07-05 | 中国工程物理研究院流体物理研究所 | A kind of nuclear electromagnetic pulse simulator clock based on photoconductive switch |
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| CN110912439A (en) | 2020-03-24 |
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