CN206727900U - A kind of self-excited push-pull type transducer - Google Patents
A kind of self-excited push-pull type transducer Download PDFInfo
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- CN206727900U CN206727900U CN201720327439.4U CN201720327439U CN206727900U CN 206727900 U CN206727900 U CN 206727900U CN 201720327439 U CN201720327439 U CN 201720327439U CN 206727900 U CN206727900 U CN 206727900U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Abstract
The utility model discloses a kind of self-excited push-pull type transducer, its drip irrigation device is to include, multi-resonant oscillating circuit, the input of the multi-resonant oscillating circuit is coupled to power supply, the multi-harmonic-oscillations include two output ends and the energy-storage travelling wave tube of continuous impulse electricity, the multi-resonant oscillating circuit is used to receive direct current, and by the impulse electricity of energy-storage travelling wave tube, to interlock output control signal in two output ends；Push-pull circuit, the input of the push-pull circuit are coupled to power supply, and the control terminal of the push-pull circuit is coupled to multi-resonant oscillating circuit to receive control signal staggeredly, and the push-pull circuit is used to receive control signal to export ac signal.Pass through the addition of multi-resonant oscillating circuit so that the pulse signal that the push-pull circuit in converter can be inputted staggeredly, push-pull circuit can stablize output alternating current.
Description
Technical field
A kind of power circuit is the utility model is related to, more specifically, it relates to a kind of self-excited push-pull type transducer.
Background technology
Inverter, exactly direct current is transformed into using thyristor circuit the power supply of alternating current.Such as：Using IGCT
Electric locomotive, make when descending slopes dc motor as generator brake run, the potential energy of locomotive is transformed into electric energy, counter to be sent to
In AC network.And for example operating dc motor, it is braked rapidly, also allow for motor and make generator operation,
The kinetic energy of motor is changed into electric energy, it is counter to be sent in power network.
At present, Publication No. CN101272105A Chinese patent discloses a kind of backlight module, including：One luminous group
Part；And a push-pull type transverter, including：One transformer, the primary side of the transformer have one first winding and one second around
Group, first winding and second winding are coupled to a dc source, and the secondary side of the transformer is coupled to the luminescence component；
One first inductance and one second inductance；And first switch and a second switch, the first switch and the second switch foundation
One first control signal and one second control signal are alternately switched on, the first switch after switch, first inductance, this
One switch, first winding and the dc source form one first series loop, and after switch, this is second electric for the second switch
Sense, the second switch, second winding and the dc source form one second series loop, so that the transformer drives this according to this
Luminescence component；Wherein, after first control signal changes into non-enabled level by enabled level, the first Inductance coupl i ng energy
Measure to second inductance so that before second control signal reaches enabled level, the voltage at the second switch both ends is by one first electricity
Pressure changes to a second voltage, and the first voltage is more than the second voltage.
In use, first switch and the control pole of second switch need to add pulse signal, first opens above-mentioned backlight module
Pass can turn on after receiving pulse signal with second switch, and because when first switch turns on, energy is transferred to second
On winding, output end can obtain the voltage of negative half period；When second switch turns on, energy is transferred on the first winding, defeated
The voltage of positive half cycle can be obtained by going out end, realize the reversals of dc source；But during use, by the both ends of transformer
After being connected on dc source, it is still desirable to interlock input pulse signal in first switch and second switch, it is inverse in reversals
The precision for becoming the alternating voltage of gained depends on the precision and dutycycle of pulse signal, and inversion obtains required control during alternating current
Variable is more, and obtained alternating current is difficult to stabilization.
Utility model content
In view of the deficienciess of the prior art, the utility model is to provide a kind of self-excited push-pull type transducer, by more
The addition of resonance oscillation circuit so that the pulse signal that the push-pull circuit in converter can be inputted staggeredly, push-pull circuit
Output alternating current can be stablized.
To achieve the above object, the utility model provides following technical scheme：A kind of self-excited push-pull type transducer, bag
Include, multi-resonant oscillating circuit, the input of the multi-resonant oscillating circuit is coupled to power supply, and the multi-harmonic-oscillations include two output ends
With the energy-storage travelling wave tube of continuous impulse electricity, the multi-resonant oscillating circuit is used to receive direct current, and by the impulse electricity of energy-storage travelling wave tube,
To interlock output control signal in two output ends；Push-pull circuit, the input of the push-pull circuit are coupled to power supply, institute
The control terminal for stating push-pull circuit is coupled to multi-resonant oscillating circuit to receive control signal staggeredly, and the push-pull circuit is used for
Control signal is received to export ac signal.
By using above-mentioned technical proposal, a multi-resonant oscillating circuit, vibration electricity are coupled in the input of push-pull circuit
Road alternately output pulse signal, push-pull circuit can turn on output alternating current in two output ends, and due to using coupling
The use for the circuit being connected in converter, the attribute of the component in multi-resonant oscillating circuit are fixed, multi-resonant oscillating circuit output
Pulse signal dutycycle and pulse period all same, two output ends of multi-resonant oscillating circuit, which can stably interlock, exports pulse letter
Number so that push-pull circuit can export stably alternating current.
The utility model is further arranged to：The multi-resonant oscillating circuit includes first control circuit, first control
The first energy-storage travelling wave tube is included in circuit；Second control circuit, the second control circuit is interior to include the second energy-storage travelling wave tube；First opens
Element is closed, the input of the first switching element is coupled to first control circuit, the control terminal coupling of the first switching element
It is connected to second control circuit；Second switch element, the input of the second switch element is coupled to second control circuit, described
The control terminal of second switch element is coupled to first control circuit；The first energy-storage travelling wave tube charge control first switching element
Conducting, and pass through second switch component discharges；The conducting of the second energy-storage travelling wave tube charge control second switch element, and pass through
First switching element is discharged, and first energy-storage travelling wave tube replaces charge and discharge with the second energy-storage travelling wave tube.
By using above-mentioned technical proposal, after circuit turn-on, first switching element first turns on, the first energy-storage travelling wave tube
Backward voltage causes second switch element to end with voltage reversal, and the first energy-storage travelling wave tube constantly discharges, and the second energy-storage travelling wave tube is continuous
Charging, until the electric discharge of the first energy-storage travelling wave tube is completed, the control terminal of second switch element forms high-pressure opening, the second energy-storage travelling wave tube
Backward voltage causes first switching element to end with voltage reversal, and said process is reversed, electric current from first switching element with
The output end of second switch element alternately exports.
The utility model is further arranged to：First energy-storage travelling wave tube and the second energy-storage travelling wave tube are variable capacitance, institute
The discharge and recharge time for stating variable capacitance changes and changed with variable capacitance.
By using above-mentioned technical proposal, change the size of variable capacitance so that the charging interval of variable capacitance and electric discharge
Time is changed, and first switching element and the conducting of second switch element can constantly change with the time turned off, increase
The use range of circuit.
The utility model is further arranged to：The push-pull circuit includes the two groups of gatings electricity for being connected in parallel in power supply
Road, is equipped with primary winding in two groups of gating circuits, also comprising the auxiliary winding for being coupled in two primary winding in the push-pull circuit,
When gating circuit described in two groups is used to be respectively received control signal staggeredly again, two groups of primary winding conductings are controlled respectively.
By using above-mentioned technical proposal, after one group of gating circuit receives pulse signal, the primary winding in gating circuit
The electric current of change can be generated, and produces the magnetic flux of change, the magnetic flux of change can be generated in auxiliary winding and generates the electricity of forward direction
Stream, after above-mentioned gating circuit can not receive the pulse signal of multi-resonant oscillating circuit, and due to caused by multi-resonant oscillating circuit
Pulse signal staggeredly, another gating circuit can receive pulse signal, and the primary winding in the gating circuit can produce change
The electric current of change, and the magnetic flux of change is produced, the magnetic flux of change can be generated in auxiliary winding and generates reverse electric current, said process
Alternately, direct current can be converted to alternating current by push-pull circuit.
The utility model is further arranged to：The gating circuit includes the switch element and primary winding being connected in series, former
The other end of winding is coupled to power supply, and the direction of winding of two groups of primary winding is on the contrary, the other end ground connection of the switch element, described
The control terminal of switch element is coupled to the output end of multi-resonant oscillating circuit.
By using above-mentioned technical proposal, when two groups of primary winding are in opposite direction, pulse signal is received in gating circuit
Afterwards, the sense of current in gating circuit is identical, and the auxiliary winding being coupling on two primary winding can produce electric current in opposite direction.
The utility model is further arranged to：The switch element is triode or IGCT or FET.
By using above-mentioned technical proposal, when switch element is triode or IGCT or FET, switch element
It is capable of the conducting state of controlling switch element by control pole, realizes the effect of gating.
The utility model is further arranged to：Current-limiting inductance is coupled with the push-pull circuit, the current-limiting inductance
One end is coupled to power supply, and the other end is coupled to the tie point of two groups of primary winding.
By using above-mentioned technical proposal, current-limiting inductance is ensured in normal work, the conversion efficiency of circuit is influenceed compared with
It is small, and when output occurs short-circuit, circuit is operated under higher-order of oscillation pattern, is led to low frequency using this inductance, is hindered the spy of high frequency
Property, larger voltage drop is produced, reduce transformer transmits to the energy at output short-circuit end, is being exported so as to further reduce circuit
Operating current, the power consumption of reduction circuit when short-circuit.
The utility model is further arranged to：The input of the multi-resonant oscillating circuit is coupled with mu balanced circuit, described to push away
The input of pull circuit is coupled to mu balanced circuit, and the input of the mu balanced circuit is coupled to power supply.
By using above-mentioned technical proposal, mu balanced circuit can produce stable to push-pull circuit and multi-resonant oscillating circuit
Direct current.
In summary, the utility model has the advantages that：The control terminal of push-pull circuit is coupled with multi-harmonic-oscillations
Circuit, multi-resonant oscillating circuit automatically form pulse signal staggeredly so that DC inverter can be exchange by push-pull circuit
Electricity.
Brief description of the drawings
Fig. 1 is the circuit theory diagrams of the present embodiment.
Reference：1st, multi-resonant oscillating circuit；11st, first control circuit；12nd, second control circuit；2nd, mu balanced circuit；3、
Push-pull circuit；31st, the first gating circuit；32nd, the second gating circuit.
Embodiment
Reference picture 1 is described further to the utility model.
A kind of self-excited push-pull type transducer, including mu balanced circuit 2, the output end of mu balanced circuit 2 are coupled to power supply, voltage stabilizing electricity
Road 2 includes the first resistor R1 being connected in series and the first triode Q5, the first triode Q5 colelctor electrode are coupled to first resistor
R1, the first triode Q5 base stage are coupled to voltage-regulator diode D1 negative electrode, voltage-regulator diode D1 plus earth, second resistance
R2 one end is coupled to the tie point of the first triode Q5 colelctor electrodes and first resistor R1, the other end be coupled to the first triode Q5 with
Voltage-regulator diode D1 tie point, voltage-regulator diode D1 are connected in parallel to 3rd resistor R3, and first electric capacity C3 one end is coupled to surely
Diode D1 anode is pressed, the other end is coupled to the first triode Q5 emitter stage, and the first triode Q5 emitter stage can be defeated
Go out stable voltage.
After the input of mu balanced circuit 2 is coupled to dc source, on first resistor R1, second resistance R2 and 3rd resistor R3
It is connected in series, can forms stable voltage on voltage-regulator diode D1, the first triode Q5 conductings can be by direct current by the
One triode Q5 is directly exported, and the first triode Q5 can export stable electric current.
The input of multi-resonant oscillating circuit 1 is coupled to the output end of mu balanced circuit 2, and multi-resonant oscillating circuit 1 includes the first control
Circuit 11 processed and second control circuit 12, first control circuit 11 include the 5th resistance R5 for being connected in parallel in mu balanced circuit 2 and
First adjustable resistance R6, in addition to the first energy-storage travelling wave tube being coupled between the 5th resistance R5 and the first adjustable resistance R6, first
Energy-storage travelling wave tube is the first variable capacitance C1；Second control circuit 12 includes the second adjustable resistance for being connected in parallel in mu balanced circuit 2
R7 and the 8th resistance R8, in addition to the one or two energy-storage travelling wave tube being coupled between the second adjustable resistance R7 and the 8th resistance R8, the
Two energy-storage travelling wave tubes are the second variable capacitance C2.
Multi-resonant oscillating circuit 1 also includes first switching element Q1 and second switch element Q2, first switching element Q1 and the
Two switch element Q2 are triode or IGCT or FET, and the present embodiment chooses triode, the Q1's of first switching element
Colelctor electrode is coupled to the 5th resistance R5 and the first variable capacitance C1 tie point, and first switching element Q1 base stage is coupled to second
Adjustable resistance R7 and the second variable capacitance C2 tie point, first switching element Q1 emitter stage being capable of output pulse signal；The
The Q2 of two switch elements colelctor electrode is coupled to the 6th resistance R6 and the first variable capacitance C1 tie point, second switch element Q2
Base stage be coupled to the 8th resistance R8 and the second variable capacitance C2 tie point, second switch element Q2 emitter stage can export
Pulse signal, first switching element Q1 emitter stage and second switch element Q2 interlock output pulse signal.
After mu balanced circuit 2 is connected, mu balanced circuit 2 can provide power supply to multi-resonant oscillating circuit 1, start moment, due to
First switching element Q1 and second switch element Q2 bulk properties can not possibly completely the same, first switching element Q1 or second switch
Element Q2 can be introduced into conducting state.Assuming that now first switching element Q1 is first turned on, first switching element Q1 colelctor electrode
Produce electric current, corresponding first switching element Q1 collector voltage declines rapidly, and due to contain in the first variable capacitance C1 with
The reverse voltage of the input terminal voltage identical of first control circuit 11, the second switch element Q2 terminal voltage that controls is 0V, second
Switch element Q2 ends, the first switching element Q1 emitter stage can output signal, this is the first temporary of multi-resonant oscillating circuit 1
State.
In first transient state, the first variable capacitance C1 constantly discharges, and second switch element Q2 control terminal voltage constantly raises,
Until kwh loss is complete in the first variable capacitance C1, and in the first variable capacitance C1 discharge process, second switch element Q2
Control terminal voltage constantly rise until conducting；Simultaneously because second switch element Q2 ends, the second variable capacitance C2 constantly fills
Electricity, until the second variable capacitance C2 chargings are complete, in the second variable capacitance C2 charging process, first switching element Q1 control
Terminal voltage processed constantly declines until first switching element Q1 ends；Now, first switching element Q1 ends, and second switch element is led
It is logical, the second switching element Q2 emitter stage can output signal, this is the second transient state of multi-resonant oscillating circuit 1.
And above-mentioned first transient state being capable of checker, first switching element Q1 and second switch element Q2 energy with the second transient state
Enough replace output pulse signal, and conversion time depends on the discharge and recharge time of electric capacity, changes the first variable capacitance C1, second can
Become electric capacity C2, the first adjustable resistance R6 and the second adjustable resistance R7 size so that pulse signal is held time and adjacent arteries and veins
Rushing the time interval of signal can change.
Push-pull circuit 3 is coupled to multi-resonant oscillating circuit 1, and push-pull circuit 3 includes two groups of gating circuits being connected in parallel,
First gating circuit 31 includes the first primary winding M1 and the 3rd switch element Q3 being connected in series, and the second gating circuit 32 includes string
Join the second primary winding M2 and the 4th switch element Q4 of connection, the first primary winding M1 and the second primary winding M2 other end couple
In the output end of mu balanced circuit 2, and the direction of winding of two primary winding is opposite；3rd switch element Q3 and the 4th switch element Q4
For triode or IGCT or FET, the present embodiment chooses triode, the grounded emitter of two triodes, two three poles
The control terminal of pipe is respectively coupled to the output end of multi-resonant oscillating circuit 1；Push-pull circuit 3 also includes being coupled in two primary winding
Current-limiting inductance L1 between tie point and the output end of mu balanced circuit 2；It is former that push-pull circuit 3 also includes the first primary winding M1 and second
The auxiliary winding M3 that winding M2 is coupled.
After two triodes receive the pulse signal staggeredly of multi-resonant oscillating circuit 1, conducting one is merely able in the same time
Individual triode, other end triode, and said process checker are turned on after the time of one end.Electric current flows through the first primary winding
M1, and the magnetic flux of change is generated in the first primary winding M1, the magnetic flux of change can be accessed in auxiliary winding M3 and produces forward direction
Electric current；It is former second through after a period of time, the current vanishes in the first primary winding M1, electric current flows through the second primary winding M2
Winding M2 produces the magnetic flux of change, and the magnetic flux of change can be accessed in auxiliary winding M3 and produces reverse electric current, said process
Can alternately, auxiliary winding M3 interior energies access alternating current, realize the inversion of dc source.
Described above is only preferred embodiment of the present utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (8)
- A kind of 1. self-excited push-pull type transducer, it is characterised in that including,Multi-resonant oscillating circuit (1), the input of the multi-resonant oscillating circuit (1) are coupled to power supply, and the multi-harmonic-oscillations include two Individual output end and the energy-storage travelling wave tube of continuous impulse electricity, the multi-resonant oscillating circuit (1) is used to receive direct current, and passes through energy storage member The impulse electricity of part, to interlock output control signal in two output ends；Push-pull circuit (3), the input of the push-pull circuit (3) are coupled to power supply, the control of the push-pull circuit (3) End is coupled to multi-resonant oscillating circuit (1) to receive control signal staggeredly, and the push-pull circuit (3) is used to receive control letter Number to export ac signal.
- A kind of 2. self-excited push-pull type transducer according to claim 1, it is characterised in that the multi-resonant oscillating circuit (1) IncludingFirst control circuit (11), the first control circuit (11) is interior to include the first energy-storage travelling wave tube；Second control circuit (12), the second control circuit (12) is interior to include the second energy-storage travelling wave tube；First switching element, the input of the first switching element are coupled to first control circuit (11), the first switch The control terminal of element is coupled to second control circuit (12)；Second switch element, the input of the second switch element are coupled to second control circuit (12), the second switch The control terminal of element is coupled to first control circuit (11)；The conducting of the first energy-storage travelling wave tube charge control first switching element, and pass through second switch component discharges；Described The conducting of two energy-storage travelling wave tube charge control second switch elements, and discharged by first switching element, first energy-storage travelling wave tube Replace charge and discharge with the second energy-storage travelling wave tube.
- 3. a kind of self-excited push-pull type transducer according to claim 2, it is characterised in that first energy-storage travelling wave tube and Two energy-storage travelling wave tubes are variable capacitance, and the discharge and recharge time of the variable capacitance changes and changed with variable capacitance.
- A kind of 4. self-excited push-pull type transducer according to claim 1, it is characterised in that push-pull circuit (3) bag Two groups of gating circuits for being connected in parallel in power supply are included, primary winding is equipped with two groups of gating circuits, the push-pull circuit (3) is interior Also comprising the auxiliary winding for being coupled in two primary winding, gating circuit described in two groups is used to be respectively received control signal staggeredly again When, two groups of primary winding conductings are controlled respectively.
- 5. a kind of self-excited push-pull type transducer according to claim 4, it is characterised in that the gating circuit includes series connection The switch element and primary winding of connection, the other end of primary winding are coupled to power supply, and the direction of winding of two groups of primary winding is on the contrary, described The other end ground connection of switch element, the control terminal of the switch element are coupled to the output end of multi-resonant oscillating circuit (1).
- 6. a kind of self-excited push-pull type transducer according to claim 5, it is characterised in that the switch element is triode Or IGCT or FET.
- 7. a kind of self-excited push-pull type transducer according to claim 4, it is characterised in that in the push-pull circuit (3) Current-limiting inductance is coupled with, one end of the current-limiting inductance is coupled to power supply, and the other end is coupled to the tie point of two groups of primary winding.
- 8. according to a kind of self-excited push-pull type transducer described in claim 1 or 2 or 4, it is characterised in that the multi-harmonic-oscillations electricity The input on road (1) is coupled with mu balanced circuit (2), and the input of the push-pull circuit (3) is coupled to mu balanced circuit (2), institute The input for stating mu balanced circuit (2) is coupled to power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720327439.4U CN206727900U (en) | 2017-03-30 | 2017-03-30 | A kind of self-excited push-pull type transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720327439.4U CN206727900U (en) | 2017-03-30 | 2017-03-30 | A kind of self-excited push-pull type transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206727900U true CN206727900U (en) | 2017-12-08 |
Family
ID=60503645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720327439.4U Expired - Fee Related CN206727900U (en) | 2017-03-30 | 2017-03-30 | A kind of self-excited push-pull type transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206727900U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109787477A (en) * | 2018-04-02 | 2019-05-21 | 浙江工业大学 | Switch is located at the auto-excitation type DC-DC converter and its crisscross parallel form of input side |
| WO2021155870A3 (en) * | 2020-02-07 | 2021-09-16 | Valeo Automotive Air Conditioning Hubei Co., Ltd. | Voltage multiplier system |
-
2017
- 2017-03-30 CN CN201720327439.4U patent/CN206727900U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109787477A (en) * | 2018-04-02 | 2019-05-21 | 浙江工业大学 | Switch is located at the auto-excitation type DC-DC converter and its crisscross parallel form of input side |
| CN109787477B (en) * | 2018-04-02 | 2024-04-12 | 浙江工业大学 | Self-excited DC-DC converter with switch on input side and staggered parallel connection mode thereof |
| WO2021155870A3 (en) * | 2020-02-07 | 2021-09-16 | Valeo Automotive Air Conditioning Hubei Co., Ltd. | Voltage multiplier system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20171208 Termination date: 20180330 |