CN205646793U - Multiple -pulse internal combustion engine ignition device - Google Patents
Multiple -pulse internal combustion engine ignition device Download PDFInfo
- Publication number
- CN205646793U CN205646793U CN201620346342.3U CN201620346342U CN205646793U CN 205646793 U CN205646793 U CN 205646793U CN 201620346342 U CN201620346342 U CN 201620346342U CN 205646793 U CN205646793 U CN 205646793U
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- resistance
- circuit
- switching tube
- diode
- channel switching
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Abstract
The utility model discloses a multiple -pulse internal combustion engine ignition device, the device is by P channel switch tube V1 and N channel switch tube V2, PNP type triode T1 and NPN type triode T2, diode D1 and diode D2, the high -pressure ignition coil B who constitutes by closed magnetic circuit magnetic core and primary winding N1 and secondary N2, be equipped with output out, electric current protection end ix's IC control circuit, driving resistance rd, resistance rf, current detection resistance rx, filter capacitor C, high voltage output holds HV, control end K, input power end ec and public GND constitution. This circuit adopts the bi -polar just swashing the circuit and is equipped with the resilience diode, has improved converting circuit efficiency. Utilizing the combination of P channel switch tube and N channel switch tube to match and rectifying sharp transfer circuit, simplified drive circuit, the cost is reduced has improved the conversion frequency, and then has dwindled core plan sum of products volume, has improved and has lighted the probability.
Description
Technical field
This utility model relates to internal combustion engine firing circuit, particularly relates to a kind of multiple-pulse ignition device for internal combustion.
Background technology
Igniter in existing general-purpose engine electromotor, uses open magnetic circuit high-voltage ignition coil mostly, and drive circuit is adopted
With contact and quasiconductor (electronics) non-contact type.Semiconductor contactless formula drives service life long, the most progressively substitutes contact
Formula.But semiconductor contactless formula drives and mostly uses single semiconductor switch pipe to drive the high-voltage line that open magnetic circuit magnetic core is made
Circle is operated, and at switching tube shutdown moment, the peak voltage that the energy of high-voltage ignition coil storage produces needs resistance-capacitance absorption to enter
Row consumes, and drives pipe with protection, causes open magnetic circuit magnetic core to damage big, energy conversion efficiency typically only about 65%.Another
Aspect, drive circuit is pulse igniting, is difficult to light, and the current operating frequency of pulse task driven ignition coil is low,
The number of turn of ignition coil is many, and core area is big, and the ignition coil volume produced is big, and cost is high.Along with the development of electronic technology,
Utilizing new technical substitution existing internal-combustion engine ignition circuit has been trend of the times.
Utility model content
For the deficiencies in the prior art, the technical problems to be solved in the utility model is to provide a kind of multiple-pulse internal-combustion engine ignition dress
Put.This device utilizes a P-channel switching tube and a N-channel switching tube, two diodes and the primary of high-voltage ignition coil
Winding constitutes double-end normal shock on-off circuit, IC control circuit export pulse group, drive a N-channel switching tube；By one
PNP type triode and NPN type triode composition drive circuit, drive P-channel switching tube, high-voltage ignition coil time
Level winding induces high-voltage pulse group, carries out ignition operation.When IC control circuit turns off output, the energy being made up of two diodes
Amount feedback circuit will be stored in the energy of ignition coil and is released back into power supply.When overcurrent, will detection by a current sense resistor
To signal pass to IC control circuit, automatically reduce driving pulse width, with protection circuit.
This utility model solves its technical problem and be employed technical scheme comprise that, a kind of multiple-pulse ignition device for internal combustion is by P-channel
Switching tube V1 and N-channel switching tube V2, PNP type triode T1 and NPN type triode T2, diode D1 and diode D2,
High-voltage ignition coil B being made up of the armature winding N1 and secondary windings N2 of closed magnetic circuit magnetic core coiling, be provided with outfan out,
The IC control circuit of current protection end Ix, driving resistance Rd, resistance Rf, current sense resistor Rx, filter capacitor C,
High-voltage output end HV, control end K, input supply terminal Ec and publicly GND composition.
The annexation of a kind of multiple-pulse ignition device for internal combustion is as follows: input supply terminal Ec and one end of filter capacitor C, IC
The feeder ear of control circuit, the source electrode of P-channel switching tube V1, the emitter stage of PNP type triode T1 and the negative pole of diode D1
Connect, the other end of filter capacitor C and the GND of IC control circuit, one end of resistance Rf, the sending out of NPN type triode T2
The other end of the secondary windings N2 of emitter-base bandgap grading, the positive pole of diode D2, one end of current sense resistor Rx and high-voltage ignition coil B
It is connected with GND publicly, the drain electrode of P-channel switching tube V1 and the negative pole of diode D2 and the primary of high-voltage ignition coil B
One end of winding N1 is connected, the positive pole of diode D1 and the drain electrode of N-channel switching tube V2 and the primary of high-voltage ignition coil B
The other end of winding N1 connects, the other end of current sense resistor Rx and the source electrode of N-channel switching tube V2 and IC control circuit
Current protection end Ix connect, drive one end and the base stage of PNP type triode T1 of resistance Rd, NPN type triode T2
Base stage is connected with one end of resistance Rf, drives the other end and the outfan out of IC control circuit, the N-channel switch of resistance Rd
The grid of pipe V2 is connected, the colelctor electrode of PNP type triode T1 and NPN type triode T2 and the grid of P-channel switching tube V1
Being connected, one end of the secondary windings N2 of high-voltage ignition coil B is connected with high-voltage output end HV.
Described IC control circuit is by general Single-end output PWM integrated switch regulated power supply driving chip and corresponding peripheral circuit institute
Composition.
Can be by described IC control circuit and P-channel switching tube V1 and N-channel switching tube V2, diode D1, D2, positive-negative-positive
Audion T1 and NPN type triode T2, current sense resistor Rf, resistance Rx and drive resistance Rd be arranged to integrated circuit or
Thick film circuit board.
Fig. 1 is a kind of multiple-pulse ignition device for internal combustion schematic diagram, and its operation principle is: by input supply terminal Ec and publicly
GND accesses 12V internal combustion engine power supply, controls end K and is connected with internal-combustion engine ignition control circuit IC, by controlling end K during work
Feed ignition signal, the outfan out end output height of the IC control circuit being made up of PWM integrated switch regulated power supply driving chip
Level, a road directly drives N-channel switching tube V2, and another road, through driving resistance Rd to resistance Rf one end, drives NPN type three
Pole pipe T2 turns on, and PNP type triode T1 turns off, and drives P-channel switching tube V1 work；Electric current is through P-channel switching tube V1
PWM pulse-width modulation type is carried out through the armature winding N1 and current sense resistor Rx of high-voltage ignition coil B with N-channel switching tube V2
Work, operating frequency, at 5KHZ-100KHZ, induces igniting high pressure, through high pressure at the secondary windings N2 of high-voltage ignition coil B
Outfan HV drives plug ignition.When P-channel switching tube V1 and N-channel switching tube V2 turns off, it is stored in high-tension ignition
Energy in coil B is released back into input supply terminal Ec through diode D1 and diode D2；When ignition switch controls end K disconnection,
The outfan out of IC control circuit stops output.When spark plug and high-tension line break down, current sense resistor Rx two
Terminal voltage reaches stop voltage, and the current protection end Ix of IC control circuit obtains stop voltage, makes IC control circuit export pulse
Narrow, it is to avoid overall high-frequency impulse internal-combustion engine ignition circuit overcurrent, when recovering normal work after Failure elimination.
This utility model has the beneficial effects that, owing to high-voltage ignition coil uses closed magnetic circuit magnetic core, can reduce the leakage field of magnetic core,
And then improve conversion efficiency.Use double-end normal shock circuit to be provided with resilience diode, improve change-over circuit efficiency, reduce out
Close pipe and bear voltage, reduce cost.P-channel switching tube and N-channel switching tube is utilized to be combined into double-end normal shock translation circuit,
Simplify drive circuit, reduce cost.Pulse group high-tension ignition improves lights probability, improves conversion frequency, and then reduces
Magnetic core area and volume.
Accompanying drawing explanation
Fig. 1 multiple-pulse ignition device for internal combustion schematic diagram
Fig. 2 multiple-pulse ignition device for internal combustion circuit diagram
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing 2 thereof, this utility model is described in further details.
This utility model is a kind of multiple-pulse ignition device for internal combustion, and Fig. 2 is a kind of multiple-pulse ignition device for internal combustion circuit diagram.
This circuit is by P-channel switching tube V1 and N-channel switching tube V2, PNP type triode T1 and NPN type triode T2, diode
D1 and diode D2, high-voltage ignition coil B of armature winding N1 and the secondary windings N2 composition of closed magnetic circuit magnetic core coiling, if
There are outfan out, the IC control circuit of current protection end Ix, drive resistance Rd, resistance Rf, current sense resistor Rx,
Filter capacitor C, high-voltage output end HV, control end K, input supply terminal Ec and publicly GND composition.In a kind of multiple-pulse
The annexation of combustion engine igniter circuit is as follows: input supply terminal Ec and one end of filter capacitor C, IC control circuit
The negative pole of feeder ear, the source electrode of P-channel switching tube V1, the emitter stage of PNP type triode T1 and diode D1 connects, filtering
The other end of capacitor C and the GND of IC control circuit, one end of resistance Rf, the emitter stage of NPN type triode T2, two poles
Another of the positive pole of pipe D2, one end of current sense resistor Rx and the secondary windings N2 of GND, high-voltage ignition coil B publicly
End is connected, the drain electrode of P-channel switching tube V1 and the negative pole of diode D2 and the one of the armature winding N1 of high-voltage ignition coil B
End is connected, and the positive pole of diode D1 is another with the armature winding N1's of the drain electrode of N-channel switching tube V2 and high-voltage ignition coil B
One end connects, the other end of current sense resistor Rx and the source electrode of N-channel switching tube V2 and the current protection end of IC control circuit
Ix connects, and drives one end and the base stage of PNP type triode T1, the base stage of NPN type triode T2 and the resistance Rf of resistance Rd
One end be connected, drive the other end of resistance Rd and the outfan out of IC control circuit, the grid phase of N-channel switching tube V2
Even, PNP type triode T1 is connected with the grid of P-channel switching tube V1 with the colelctor electrode of NPN type triode T2, high-tension ignition
One end of the secondary windings N2 of coil B is connected with high-voltage output end HV.
Fig. 2 wherein IC control circuit by single-ended PWM pulse width modulating chip use uc3842, determine frequency RC resistance RT and
Electric capacity CT, adjustable resistance W that pulse width is given and resistance R5, on-off control with audion T3 and resistance R1, R2, R3 and
R4 forms.The annexation of IC circuit portions is: control end K and resistance R1 one end be connected, the other end of resistance R1 and
One end of resistance R2 is connected with the base stage of audion T3, the other end of resistance R2 and one end of resistance R3, adjustable resistance W
One end is connected with input supply terminal Ec with 7 feet of center-side, uc3842, the other end of resistance R3 and the current collection of audion T3
The most connected, the emitter stage of audion T3 and the other end of adjustable resistance W, one end of resistance R5,2 feet of uc3842 and resistance
One end of R4 is connected, and the other end of resistance R4 is connected with 1 foot of UC3842, the 8 foot phases of one end of resistance RT and UC3842
Even, the other end of resistance RT is connected with one end of electric capacity CT and 4 feet of UC3843, and the other end of electric capacity CT is with resistance R5's
The other end, 5 feet of UC3842 are connected with GND publicly.
During work, power input Ec accesses power supply, when the control end K of ignition switch feeds low level, and audion T3 turns off,
2 feet of UC3842 obtain the voltage of given pulse width, resistance RT and electric capacity CT determine that frequency works；Outfan out6)
The pulse group that output requires, a road directly drives N-channel switching tube V2, and another road is through driving resistance Rd and resistance Rf, driving
PNP type triode T1 and NPN type triode T2 drive P-channel switching tube V1 work；By P-channel switching tube V1 and N ditch
Road switching tube V2 constitutes double-end normal shock translation circuit with the armature winding N1 through current sense resistor Rx and high-voltage ignition coil B；
Inducing high pressure 15KV-32KV pulse group through the secondary windings N2 of high-voltage ignition coil B, pulse group arrives through high-voltage output end HV
The spark plug of internal combustion engine carries out high-tension ignition.When outfan breaks down, and electric current reaches setting value, current sense resistor Rx two
Terminal voltage reaches limit value, controls 6 foot outfan out pulses through the 3 foot current detecting end Ix of uc3842 and automatically narrows, real
Now protect.Working as failure vanishes, device recovers normally to work automatically.
The multiple-pulse ignition device for internal combustion made by principle of the present utility model, have that volume is little, low cost, reliability high,
Conversion efficiency up to more than 92%, it is easily installed, and internal combustion engine can be reduced does not lights the generation of phenomenon.
Claims (4)
1. a multiple-pulse ignition device for internal combustion, it is characterised in that: this device is switched by P-channel switching tube V1 and N-channel
Pipe V2, PNP type triode T1 and NPN type triode T2, diode D1 and diode D2, by closed magnetic circuit magnetic core coiling
High-voltage ignition coil B of armature winding N1 and secondary windings N2 composition, is provided with outfan out, the IC of current protection end Ix
Control circuit, drives resistance Rd, resistance Rf, current sense resistor Rx, filter capacitor C, high-voltage output end HV, controls
End K, input supply terminal Ec and publicly GND composition.
A kind of multiple-pulse ignition device for internal combustion, it is characterised in that: the annexation of this device:
Input supply terminal Ec and one end of filter capacitor C, the feeder ear of IC control circuit, the source electrode of P-channel switching tube V1, PNP
The emitter stage of type audion T1 and the negative pole of diode D1 connect, the GND of the other end of filter capacitor C and IC control circuit,
One end of resistance Rf, the emitter stage of NPN type triode T2, the positive pole of diode D2, one end of current sense resistor Rx and
The other end of the secondary windings N2 of high-voltage ignition coil B is connected with GND publicly, the drain electrode and two of P-channel switching tube V1
The negative pole of pole pipe D2 is connected with one end of the armature winding N1 of high-voltage ignition coil B, and the positive pole of diode D1 is opened with N-channel
The other end of the armature winding N1 closing the drain electrode of pipe V2 and high-voltage ignition coil B connects, the other end of current sense resistor Rx with
The source electrode of N-channel switching tube V2 and the current protection end Ix of IC control circuit connect, and drive one end and the positive-negative-positive of resistance Rd
The base stage of audion T1, the base stage of NPN type triode T2 are connected with one end of resistance Rf, drive resistance Rd the other end with
The outfan out of IC control circuit, the grid of N-channel switching tube V2 are connected, PNP type triode T1 and NPN type triode
The colelctor electrode of T2 is connected with the grid of P-channel switching tube V1, and one end of the secondary windings N2 of high-voltage ignition coil B is defeated with high pressure
Go out to hold HV to be connected.
A kind of multiple-pulse ignition device for internal combustion the most according to claim 1 or claim 2, it is characterised in that: can be by described IC control
Circuit processed and P-channel switching tube V1 and N-channel switching tube V2, diode D1, D2, PNP type triode T1 and NPN type three
Pole pipe T2, current sense resistor Rf, resistance Rx and driving resistance Rd are arranged to integrated circuit or thick film circuit board.
A kind of multiple-pulse ignition device for internal combustion the most according to claim 1 or claim 2, it is characterised in that: described IC controls electricity
It route general Single-end output PWM integrated switch regulated power supply driving chip and corresponding peripheral circuit is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620346342.3U CN205646793U (en) | 2016-04-20 | 2016-04-20 | Multiple -pulse internal combustion engine ignition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620346342.3U CN205646793U (en) | 2016-04-20 | 2016-04-20 | Multiple -pulse internal combustion engine ignition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205646793U true CN205646793U (en) | 2016-10-12 |
Family
ID=57063219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620346342.3U Expired - Fee Related CN205646793U (en) | 2016-04-20 | 2016-04-20 | Multiple -pulse internal combustion engine ignition device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205646793U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681363A (en) * | 2017-10-19 | 2019-04-26 | 天津理工大学 | High-frequency multiple-pulse car engine ignition circuit |
-
2016
- 2016-04-20 CN CN201620346342.3U patent/CN205646793U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681363A (en) * | 2017-10-19 | 2019-04-26 | 天津理工大学 | High-frequency multiple-pulse car engine ignition circuit |
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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: 20161012 Termination date: 20170420 |