CN207245911U - A kind of aero-engine ignition system high-voltage capacitor charging circuit - Google Patents
A kind of aero-engine ignition system high-voltage capacitor charging circuit Download PDFInfo
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Abstract
It the utility model is related to a kind of aero-engine ignition system high-voltage capacitor charging circuit, including insurance circuit, current rectifying and wave filtering circuit, auxiliary power supply circuit, switching tube Q1, drive circuit, process chip, reference circuit, frequency setting signal process circuit, current detecting and filter circuit, leakage inductance absorbing circuit, transforming circuit and charging circuit.Circuit works in dcm mode, during switching tube Q1 is turned off, all energy are all transferred to charging circuit, ensure the energy estimate methods of each periodic transfer, so as to more be accurately controlled the charging interval of capacitance C8, and the parameters change of circuit is smaller in complete warm scope, by the way that intermediate-frequency transformer is changed to high frequency transformer, reduces the weight of transforming circuit.
Description
Technical field
It the utility model is related to aero-engine ignition system technical field, and in particular to a kind of aero-engine ignition system
System high-voltage capacitor charging circuit.
Background technology
Aero-engine ignition is the aero-engine ignition system high-voltage electricity using fixed frequency high-voltage pulse as incendiary source
Capacity charge circuit is to produce level-one high pressure, and applied to the input capacitance charging to two level high-pressure generating circuit, the time of charging determines
Determined the frequency of high-voltage pulse, this general frequency in 1.8HZ between 2.3HZ, current aero-engine ignition system one
Level circuit for producing high voltage is that input power AC115V/400HZ is controlled no-load voltage ratio by intermediate-frequency transformer, is carried out in secondary output end
Rectifying and wave-filtering obtains high voltage direct current.
Intermediate-frequency transformer is that input voltage is converted according to fixed no-load voltage ratio to export.If output voltage and frequency become
Change, then output voltage follows change, according to reality service condition from the point of view of, change range of input voltage AC100V~
AC121V, 360~800HZ of frequency range, the voltage and frequency of such wide scope change can cause the play of output voltage
Strong fluctuation, the problem of being finally reflected out are exactly that each discharge and recharge time change of load capacitance is very big, discharge and recharge repetition rate
In 1.3HZ~2.8HZ, beyond desired value range, and the volume of intermediate-frequency transformer is big, weight weight.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of aero-engine ignition system high-voltage capacitor charging
Circuit, the circuit can reduce product weight, stablize capacitor charging time.
The technical solution that the utility model solves above-mentioned technical problem is as follows：A kind of aero-engine ignition system high-voltage electricity
Capacity charge circuit, including insurance circuit, current rectifying and wave filtering circuit, auxiliary power supply circuit, switching tube Q1, drive circuit, process chip,
Reference circuit, frequency setting signal process circuit, current detecting and filter circuit, leakage inductance absorbing circuit, transforming circuit and charging
Circuit；The input terminal of current rectifying and wave filtering circuit is connected by insurance circuit with power supply, and the output terminal of current rectifying and wave filtering circuit passes through auxiliary
Power supply circuit connection processing chip, current rectifying and wave filtering circuit are also connected with leakage inductance absorbing circuit and transforming circuit respectively, and leakage inductance absorbs
The drain electrode of circuit and transforming circuit with switching tube Q1 is connected, and drive circuit is equipped between the source electrode and grid of switching tube Q1, is opened
The source electrode for closing pipe Q1 is also connected with current detecting and filter circuit, and current detecting and filter circuit are connected with process chip, handles core
Piece is connected with reference circuit and frequency setting signal process circuit respectively, and transforming circuit is connected with charging circuit.
The beneficial effects of the utility model are：In the utility model, circuit works in dcm mode, in switching tube Q1
During shut-off, all energy are all transferred to charging circuit, ensure the energy estimate methods of each periodic transfer, so as to more accurate
Control capacitance C8 charging interval, and in complete warm scope the parameters of circuit change it is smaller, by by intermediate frequency transformation
Device is changed to high frequency transformer, reduces the weight of transforming circuit.
Based on the above technical solutions, the utility model can also do following improvement.
Further, current rectifying and wave filtering circuit includes diode D1, diode D2, diode D 3, diode D4 and ground capacity
C1；The anode of diode D1, which is connected with the anode of diode D2 and connects ground capacity C1, auxiliary power supply circuit, leakage inductance, absorbs electricity
Road and transforming circuit, the cathode of diode D1 are connected with the anode of diode D3 and connect insurance circuit, the cathode of diode D2
It is connected with the anode of diode D4 and connects external power supply, the cathode of diode D3 is connected and is grounded with the cathode of diode D4；
Insurance circuit includes the protective tube F1 being connected with external power supply, the cathode of protective tube F1 connection diodes D1；Become
Volt circuit includes primary coil and secondary coil, and primary coil includes the first armature winding and the second armature winding, secondary coil
Including the first secondary windings, second subprime winding and third time level winding, the cathode of the first armature winding and bearing for diode D1
Extremely it is connected, the model UC1844 of process chip.
It is using the above-mentioned further beneficial effect of scheme：The AC conversion of input can be direct current by current rectifying and wave filtering circuit
Electricity, insurance circuit can fuse in external power supply overcurrent, avoid fault.
Further, auxiliary power supply circuit includes resistance R1, resistance R2, diode D5 and ground capacity C2；The one of resistance R1
End is connected with the anode of diode D1, and the other end is connected by resistance R2 with the cathode of diode D5, the anode point of diode D5
The pin 7 and ground capacity C2 of other connection processing chip.
It is using the above-mentioned further beneficial effect of scheme：Auxiliary power supply circuit is provided after rectifying and wave-filtering for chip
Direct current.
Further, leakage inductance absorbing circuit includes resistance R11, capacitance C7, diode D10 and diode D11；Diode D10
Cathode be connected with the cathode of diode D11 and distinguish connecting valve pipe Q1 drain electrode and the first armature winding anode, two poles
The anode of pipe D10 is connected with the anode of diode D11 and connects one end of resistance R11 and one end of capacitance C7, resistance R11 respectively
The other end and anode of the other end respectively with diode D1 of capacitance C7 be connected.
It is using the above-mentioned further beneficial effect of scheme：Leakage inductance absorbing circuit can absorb transformer after switching tube Q1 shut-offs
The spike that leakage inductance produces.
Further, drive circuit includes resistance R4, resistance R3, diode D6, diode D7 and resistance R5；The one of resistance R4
End is connected with the grid of switching tube Q1, and the other end of resistance R4 connects one end of resistance R3 and the anode of diode D6 respectively, electricity
Hinder the pin 6 of the other end connection processing chip of R3, grid, the diode D7 of the cathode difference connecting valve pipe Q1 of diode D6
Anode and resistance R5 one end, the other end of resistance R5 and the cathode of diode D7 are connected to the source electrode of switching tube Q1.
It is using the above-mentioned further beneficial effect of scheme：Drive circuit is used for driving switch pipe Q1, controlling switch pipe Q1
Closure or openness.
Further, current detecting and filter circuit include capacitance C4, resistance R9 and ground resistance R10；Ground capacity C4's
Ungrounded end and one end of resistance R9 are connected with the pin 3 of process chip, and the other end of resistance R9 connects ground resistance respectively
The source electrode of R10 and switching tube Q1.
It is using the above-mentioned further beneficial effect of scheme：Current detecting and filter circuit are used to detect operating current and filter
Except interference signal.
Further, reference circuit includes ground capacity C3, resistance R6, resistance R7, diode D8 and diode D9；Ground connection electricity
Hold the ungrounded end of C3 and one end of resistance R6 is connected with the pin 8 and reference voltage of process chip respectively, resistance R6's is another
End connects one end of resistance R7 and the anode of diode D8, the anode of the cathode connecting diode D9 of diode D8, two poles respectively
The pin 1 of the cathode connection processing chip of pipe D9, the other end of resistance R7 connect respectively and process chip pin 2.
It is using the above-mentioned further beneficial effect of scheme：Reference circuit provides accurate and adjustable for current limit circuit
Whole comparison voltage benchmark, wherein resistance R6 and resistance R7 obtain new reference voltage to reference voltage partial pressure, new benchmark
Voltage is supplied to control chip, and diode D8 and D9 in high temperature environments can mend the drift of control chip inner parameter
Repay, parameter drift caused by compensation temperature change.
Further, frequency setting signal process circuit includes resistance R8, capacitance C5 and capacitance C6；Resistance R8, capacitance C5 and
Capacitance C6 is connected with the pin 4 of process chip, and the other end of resistance R8 is connected with reference voltage；The other end connection of capacitance C5
To ground, the other end of capacitance C6 is connected with the pin 3 of process chip.
It is using the above-mentioned further beneficial effect of scheme：Frequency setting circuit can set the working frequency of control chip,
Resistance R8 uses precision, and for 1% precision resistance, capacitance C5 is using the COG materials of degree excellent, and volume change control is 5%
Within, ensure that working frequency produces small change under complete warm working environment.
Further, charging circuit includes capacitance C8, and the load being in parallel with capacitance C8；The both ends of capacitance C8 respectively with
The hot end of secondary coil is connected with cold end and is used as output node, the first secondary windings and second subprime winding it
Between be in series with the first rectification module, the second rectification module is in series between second subprime winding and third time level winding, third time
The 3rd rectification module is in series between level winding and capacitance C8；
The number of turn of first armature winding is 25 circles, and line footpath 0.6mm, the number of turn of the second armature winding is 4 circles, and line footpath is
0.2mm, the first secondary windings, second subprime winding, the number of turn of third time level winding are 150 circles, and line footpath is 0.1mm.
It is using the above-mentioned further beneficial effect of scheme：Output winding is divided into multigroup voltage for reducing diode should
Power, the selectable leeway of diode are big.
Further, load includes resistance R12, resistance R13, resistance R14 and the resistance R15 of series connection；First rectification module bag
Include the diode D12 being sequentially connected in series, diode D13, diode D14 and diode D15；Second rectification module includes being sequentially connected in series
Diode D16, diode D17, diode D18 and diode D19；3rd rectification module includes the diode being sequentially connected in series
D20, diode D21, diode D21 and diode D23.
It is using the above-mentioned further beneficial effect of scheme：The diode of 4 series connection can improve the reverse resistance to of rectification module
Pressure, improves the pressure-resistant safe margin of diode, improves the reliability of system.
Brief description of the drawings
Fig. 1 is the utility model structure principle chart.
Embodiment
The principle and feature of the utility model are described below in conjunction with attached drawing, example is served only for explaining this practicality
It is new, it is not intended to limit the scope of the utility model.
As shown in Figure 1, a kind of aero-engine ignition system high-voltage capacitor charging circuit, including insurance circuit, rectification filter
Wave circuit, auxiliary power supply circuit, switching tube Q1, drive circuit, process chip, reference circuit, frequency setting signal process circuit,
Current detecting and filter circuit, leakage inductance absorbing circuit, transforming circuit and charging circuit；The input terminal of current rectifying and wave filtering circuit passes through guarantor
Dangerous circuit is connected with power supply, and the output terminal of current rectifying and wave filtering circuit passes through auxiliary power supply circuit connection processing chip, rectifying and wave-filtering electricity
Road is also connected with leakage inductance absorbing circuit and transforming circuit respectively, the drain electrode of leakage inductance absorbing circuit and transforming circuit with switching tube Q1
It is connected, drive circuit is equipped between the source electrode and grid of switching tube Q1, the source electrode of switching tube Q1 is also connected with current detecting and filtering
Circuit, current detecting and filter circuit are connected with process chip, process chip respectively with reference circuit and frequency setting signal
Reason circuit is connected, and transforming circuit is connected with charging circuit.
In the utility model embodiment, circuit works in dcm mode, during switching tube Q1 is turned off, all energy
Charging circuit is all transferred to, ensures the energy estimate methods of each periodic transfer, so as to more be accurately controlled filling for capacitance C8
The electric time, and the parameters change of circuit is smaller in complete warm scope, by the way that intermediate-frequency transformer is changed to high frequency transformer,
Reduce the weight of transforming circuit.
Current rectifying and wave filtering circuit includes diode D1, diode D2, diode D 3, diode D4 and ground capacity C1；Two poles
The anode of pipe D1 is connected with the anode of diode D2 and connects ground capacity C1, auxiliary power supply circuit, leakage inductance absorbing circuit and change
Volt circuit, the cathode of diode D1 are connected with the anode of diode D3 and connect insurance circuit, the cathode of diode D2 and two poles
The anode of pipe D4 is connected and connects external power supply, and the cathode of diode D3 is connected and is grounded with the cathode of diode D4；Insurance electricity
Road includes the protective tube F1 being connected with external power supply, the cathode of protective tube F1 connection diodes D1；Transforming circuit includes primary
Coil and secondary coil, primary coil include the first armature winding and the second armature winding, secondary coil include first level around
Group, second subprime winding and third time level winding, the cathode of the first armature winding are connected with the anode of diode D1, process chip
Model UC1844；The AC conversion of input can be direct current by current rectifying and wave filtering circuit, and insurance circuit can be in external power supply
Fuse during overcurrent, avoid fault.
Auxiliary power supply circuit includes resistance R1, resistance R2, diode D5 and ground capacity C2；One end of resistance R1 and two poles
The anode of pipe D1 is connected, and the other end is connected by resistance R2 with the cathode of diode D5, the anode difference junction of diode D5
Manage the pin 7 and ground capacity C2 of chip；Auxiliary power supply circuit provides the direct current after rectifying and wave-filtering for chip.
Leakage inductance absorbing circuit includes resistance R11, capacitance C7, diode D10 and diode D11；The cathode of diode D10 and
The cathode of diode D11 is connected and distinguishes drain electrode and the anode of the first armature winding of connecting valve pipe Q1, and diode D10's is negative
Pole is connected with the anode of diode D11 and connects one end of resistance R11 and one end of capacitance C7, the other end of resistance R11 respectively
It is connected with anode of the other end of capacitance C7 respectively with diode D1；Leakage inductance absorbing circuit becomes after caning absorb switching tube Q1 shut-offs
The spike that depressor leakage inductance produces.
Drive circuit includes resistance R4, resistance R3, diode D6, diode D7 and resistance R5；One end of resistance R4 is with opening
The grid for closing pipe Q1 is connected, and the other end of resistance R4 connects one end of resistance R3 and the anode of diode D6 respectively, resistance R3's
The pin 6 of other end connection processing chip, grid, the anode of diode D7 of the cathode difference connecting valve pipe Q1 of diode D6
With one end of resistance R5, the other end of resistance R5 is connected to the source electrode of switching tube Q1 with the cathode of diode D7；Drive circuit
For driving switch pipe Q1, the closure or openness of controlling switch pipe Q1.
Current detecting and filter circuit include capacitance C4, resistance R9 and ground resistance R10；The ungrounded end of ground capacity C4
It is connected with one end of resistance R9 with the pin 3 of process chip, the other end of resistance R9 connects ground resistance R10 and switch respectively
The source electrode of pipe Q1；Current detecting and filter circuit are used to detect operating current and filtering interference signals.
Reference circuit includes ground capacity C3, resistance R6, resistance R7, diode D8 and diode D9；Ground capacity C3's
Ungrounded end and one end of resistance R6 are connected with the pin 8 and reference voltage of process chip respectively, the other end difference of resistance R6
One end of connection resistance R7 and the anode of diode D8, the anode of the cathode connecting diode D9 of diode D8, diode D9's
The pin 1 of cathode connection processing chip, the other end of resistance R7 connect respectively and process chip pin 2；Reference circuit is
Current limit circuit provides accurate and adjustable comparison voltage benchmark, and wherein resistance R6 and resistance R7 are to reference voltage partial pressure
New reference voltage is obtained, new reference voltage is supplied to control chip, diode D8 and D9 can be right in high temperature environments
The drift of control chip inner parameter compensates, parameter drift caused by compensation temperature change.
Frequency setting signal process circuit includes resistance R8, capacitance C5 and capacitance C6；Resistance R8, capacitance C5 and capacitance C6 are equal
It is connected with the pin 4 of process chip, the other end of resistance R8 is connected with reference voltage；The other end of capacitance C5 is connected to ground, electricity
The other end for holding C6 is connected with the pin 3 of process chip；Frequency setting circuit can set the working frequency of control chip, resistance R8
Use precision for 1% precision resistance, capacitance C5 use degree excellent COG materials, volume change control within 5%,
Ensure that working frequency produces small change under complete warm working environment.
Charging circuit includes capacitance C8, and the load being in parallel with capacitance C8；The both ends of capacitance C8 respectively with secondary wire
The hot end of circle is connected with cold end and is used as output node, connects between the first secondary windings and second subprime winding
There is the first rectification module, the second rectification module, third time level winding are in series between second subprime winding and third time level winding
The 3rd rectification module is in series between capacitance C8；The number of turn of first armature winding is 25 circles, and line footpath 0.6mm, second is primary
The number of turn of winding is 4 circles, and line footpath 0.2mm, the first secondary windings, second subprime winding, the number of turn of third time level winding are
150 circles, line footpath are 0.1mm；Output winding is divided into multigroup voltage stress for reducing diode, the selectable leeway of diode
Greatly.
Load includes resistance R12, resistance R13, resistance R14 and the resistance R15 of series connection；First rectification module includes going here and there successively
Diode D12, diode D13, diode D14 and the diode D15 of connection；Second rectification module includes the diode being sequentially connected in series
D16, diode D17, diode D18 and diode D19；3rd rectification module includes diode D20, the diode being sequentially connected in series
D21, diode D21 and diode D23；The diode of 4 series connection can improve the reverse pressure-resistant of rectification module, and it is resistance to improve diode
The safe margin of pressure, improves the reliability of system.
The embodiment of the utility model is：A protective tube F1 is passed through in input AC115V inputs, by diode D1, D2,
Input AC, is rectified into direct current, by the filter action of capacitance C1 pulsation by the full-bridge rectification filter circuit of D3, D4 composition
DC voltage becomes more smooth voltage；Meanwhile electricity is taken from the voltage after rectification, pass through resistance R1, the current limliting of R2, diode
D5 one-way conductions, the startup threshold voltage of process chip IC1 is charged to less electric current to capacitance C2, and process chip starts work
Make；The drive circuit of R3, R4, D6, D7, R5 composition switching tube Q1, PWM waveform of the output with certain duty cycle, when PWM high electricity
When flat, Q1 conductings.
When Q1 is turned on, secondary all rectifier diode D12, D13, D14, D15, D16, D17, D18, D19, D20,
D21, D22, D23 reversely end, equivalent to one pure inductance of transforming circuit T1, flow through the electric current linear rise of armature winding,
Reach Ip, armature winding storage energyWhen Q1 is turned off, all T1 winding voltages are reverse, R11, C6, D10, D11
The peak voltage that transformer leakage inductance produces after Q1 is turned off is absorbed, flyback voltage at this time makes secondary output diode enter conducting shape
State, while the energy of primary storageIt is completely transferred to secondary, there is provided load current charges to capacitance C8.This is one
The workflow in a cycle, next cycle so repeat.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within new spirit and principle, any modification, equivalent replacement, improvement and so on, should be included in the guarantor of the utility model
Within the scope of shield.
Claims (10)
1. a kind of aero-engine ignition system high-voltage capacitor charging circuit, it is characterised in that including insurance circuit, rectifying and wave-filtering
Circuit, auxiliary power supply circuit, switching tube Q1, drive circuit, process chip, reference circuit, frequency setting signal process circuit, electricity
Stream detection and filter circuit, leakage inductance absorbing circuit, transforming circuit and charging circuit；The input terminal of the current rectifying and wave filtering circuit passes through
Insurance circuit is connected with power supply, and the output terminal of the current rectifying and wave filtering circuit connects the processing core by the auxiliary power supply circuit
Piece, the current rectifying and wave filtering circuit are also connected with the leakage inductance absorbing circuit and transforming circuit respectively, the leakage inductance absorbing circuit and
Drain electrode of the transforming circuit with the switching tube Q1 is connected, and drive circuit is equipped between the source electrode and grid of the switching tube Q1,
The source electrode of the switching tube Q1 is also connected with the current detecting and filter circuit, the current detecting and filter circuit and the place
Reason chip is connected, and the process chip is connected with the reference circuit and frequency setting signal process circuit respectively, the transformation
Circuit is connected with the charging circuit.
2. aero-engine ignition system high-voltage capacitor charging circuit according to claim 1, it is characterised in that described whole
Stream filter circuit includes diode D1, diode D2, diode D3, diode D4 and ground capacity C1；The diode D1's
Anode be connected with the anode of diode D2 and connect respectively the ground capacity C1, auxiliary power supply circuit, leakage inductance absorbing circuit and
Transforming circuit, the cathode of the diode D1 are connected with the anode of diode D3 and connect the insurance circuit, the diode
The cathode of D2 is connected with the anode of diode D4 and connects external power supply, the cathode of the diode D3 and the cathode of diode D4
It is connected and is grounded；
The insurance circuit includes the protective tube F1 being connected with external power supply, the protective tube F1 connections diode D1's
Cathode；The transforming circuit includes primary coil and secondary coil, at the beginning of the primary coil includes the first armature winding and second
Level winding, the secondary coil include the first secondary windings, second subprime winding and third time level winding, first primary around
The cathode of group is connected with the anode of the diode D1, the model UC1844 of the process chip.
3. aero-engine ignition system high-voltage capacitor charging circuit according to claim 2, it is characterised in that described auxiliary
Power supply circuit is helped to include resistance R1, resistance R2, diode D5 and ground capacity C2；One end of the resistance R1 and the diode
The anode of D1 is connected, and the other end is connected by resistance R2 with the cathode of diode D5, and the anode of the diode D5 connects respectively
The pin 7 and ground capacity C2 of the process chip.
4. aero-engine ignition system high-voltage capacitor charging circuit according to claim 2, it is characterised in that the leakage
Sense absorbing circuit includes resistance R11, capacitance C7, diode D10 and diode D11；The cathode and diode of the diode D10
The cathode of D11 be connected and distinguish connecting valve pipe Q1 drain electrode and the first armature winding anode, the anode of the diode D10
It is connected with the anode of diode D11 and connects one end of resistance R11 and one end of capacitance C7 respectively, the resistance R11's is another
Anode of the other end of end and capacitance C7 respectively with the diode D1 is connected.
5. aero-engine ignition system high-voltage capacitor charging circuit according to claim 2, it is characterised in that the drive
Dynamic circuit includes resistance R4, resistance R3, diode D6, diode D7 and resistance R5；One end of the resistance R4 and the switch
The grid of pipe Q1 is connected, and the other end of the resistance R4 connects one end of resistance R3 and the anode of diode D6, the electricity respectively
The pin 6 of the other end connection process chip of resistance R3, the grid of the cathode difference connecting valve pipe Q1 of the diode D6,
The anode of diode D7 and one end of resistance R5, the other end of the resistance R5 are connected to switching tube with the cathode of diode D7
The source electrode of Q1.
6. aero-engine ignition system high-voltage capacitor charging circuit according to claim 2, it is characterised in that the electricity
Stream detection and filter circuit include capacitance C4, resistance R9 and ground resistance R10；The ungrounded end of the ground capacity C4 and resistance
One end of R9 is connected with the pin 3 of the process chip, and the other end of the resistance R9 connects ground resistance R10 and institute respectively
State the source electrode of switching tube Q1.
7. aero-engine ignition system high-voltage capacitor charging circuit according to claim 2, it is characterised in that the base
Quasi- circuit includes ground capacity C3, resistance R6, resistance R7, diode D8 and diode D9；The ground capacity C3's is ungrounded
End and one end of resistance R6 are connected with the pin 8 and reference voltage of the process chip respectively, the other end point of the resistance R6
Not Lian Jie one end of resistance R7 and the anode of diode D8, the anode of the cathode connecting diode D9 of the diode D8 is described
The cathode of diode D9 connects the pin 1 of the process chip, the other end of the resistance R7 connect respectively and the processing
The pin 2 of chip.
8. aero-engine ignition system high-voltage capacitor charging circuit according to claim 7, it is characterised in that the frequency
Rate setting signal process circuit includes resistance R8, capacitance C5 and capacitance C6；The resistance R8, capacitance C5 and capacitance C6 with it is described
The pin 4 of process chip is connected, and the other end of the resistance R8 is connected with reference voltage；The other end of the capacitance C5 is connected to
Ground, the other end of the capacitance C6 are connected with the pin 3 of process chip.
9. aero-engine ignition system high-voltage capacitor charging circuit according to claim 2, it is characterised in that described to fill
Circuit includes capacitance C8, and the load being in parallel with the capacitance C8；The both ends of the capacitance C8 respectively with the secondary
The hot end of coil is connected with cold end and is used as output node, first secondary windings and second subprime winding it
Between be in series with the first rectification module, the second rectification module, institute are in series between the second subprime winding and third time level winding
State and the 3rd rectification module is in series between third time level winding and capacitance C8；
The number of turn of first armature winding is 25 circles, line footpath 0.6mm, and the number of turn of second armature winding is 4 circles, line footpath
For 0.2mm, first secondary windings, second subprime winding, the number of turn of third time level winding are 150 circles, and line footpath is
0.1mm。
10. aero-engine ignition system high-voltage capacitor charging circuit according to claim 9, it is characterised in that described
Load includes resistance R12, resistance R13, resistance R14 and the resistance R15 of series connection；First rectification module includes what is be sequentially connected in series
Diode D12, diode D13, diode D14 and diode D15；Second rectification module includes the diode being sequentially connected in series
D16, diode D17, diode D18 and diode D19；3rd rectification module include be sequentially connected in series diode D20, two
Pole pipe D21, diode D21 and diode D23.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721112540.4U CN207245911U (en) | 2017-08-31 | 2017-08-31 | A kind of aero-engine ignition system high-voltage capacitor charging circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721112540.4U CN207245911U (en) | 2017-08-31 | 2017-08-31 | A kind of aero-engine ignition system high-voltage capacitor charging circuit |
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| Publication Number | Publication Date |
|---|---|
| CN207245911U true CN207245911U (en) | 2018-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721112540.4U Active CN207245911U (en) | 2017-08-31 | 2017-08-31 | A kind of aero-engine ignition system high-voltage capacitor charging circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107476922A (en) * | 2017-08-31 | 2017-12-15 | 成都四威功率电子科技有限公司 | A kind of aero-engine ignition system high-voltage capacitor charging circuit |
-
2017
- 2017-08-31 CN CN201721112540.4U patent/CN207245911U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107476922A (en) * | 2017-08-31 | 2017-12-15 | 成都四威功率电子科技有限公司 | A kind of aero-engine ignition system high-voltage capacitor charging circuit |
| CN107476922B (en) * | 2017-08-31 | 2022-08-16 | 成都四威功率电子科技有限公司 | High-voltage capacitor charging circuit of aircraft engine ignition system |
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