CN209593315U - Self-excitation resonant inverter - Google Patents
Self-excitation resonant inverter Download PDFInfo
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- CN209593315U CN209593315U CN201920386224.9U CN201920386224U CN209593315U CN 209593315 U CN209593315 U CN 209593315U CN 201920386224 U CN201920386224 U CN 201920386224U CN 209593315 U CN209593315 U CN 209593315U
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Abstract
A kind of self-excitation resonant inverter, its single-phase output form include an autonomous units, capacitor C1, capacitor C2 and inductance L；Its heterogeneous output form includes an autonomous units, capacitor C1_1 to capacitor Cn_1, capacitor C1_2 to capacitor Cn_2 and inductance L1_1 to inductance Ln_1.Either single-phase output form or heterogeneous output form, the self-excitation resonant inverter is all the oscillation needed for being generated using the inconsistency inside autonomous units, and then realizes the voltage conversion function of DC-AC.The utility model has the characteristics that starting of oscillation is easy, and is suitble to the workplace of low dc voltage input, is able to satisfy the voltage conversion requirements of DC-AC.
Description
Technical field
The utility model relates to single-phase and multiphase resonance inverter (DC-AC), are especially suitable for the work of low dc voltage input
Make occasion, such as: collection of energy, micro machine driving, wireless power transmission.
Background technique
Common resonance inverter includes Class E inverter and LLC inverter.It is drawn by the driving method of switching tube
Point, resonance inverter can be divided into separated exciting and auto-excitation type two types.Although current separated exciting resonance inverter is more humorous than auto-excitation type
Vibration inverter is applied more extensive, but in the workplace self-excitation resonant inverter of low dc voltage input in terms of starting
Advantage be that separated exciting resonance inverter is incomparable.
Summary of the invention
In order to overcome existing separated exciting resonance inverter in deficiency present on low dc voltage starting problem, this is practical new
Type provides a kind of self-excitation resonant inverter (having single-phase and two kinds of output forms of multiphase), it can be inputted in low dc voltage
Under the conditions of realize self-starting.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
A kind of self-excitation resonant inverter, including an autonomous units, capacitor C1, capacitor C2 and inductance L, the self-excitation list
Member includes resistance Rs1_1, resistance Rs1_3, resistance Rp1_2, inductance Lp1_1, capacitor Cs1_1, capacitor Cp1_1, NPN type BJT pipe
One end while and the direct current of Qs1_1, NPN type BJT pipe Qp1_1, diode Ds1_1 and diode Dp1_1, the resistance Rs1_1
The anode of power supply Vi is connected with one end of inductance Lp1_1, the other end of resistance Rs1_1 one end with capacitor Cs1_1 and NPN simultaneously
The collector of type BJT pipe Qs1_1 is connected, the base stage of NPN type BJT pipe Qs1_1 while cathode and resistance with diode Ds1_1
One end of Rs1_3 is connected, the other end of inductance Lp1_1 while the current collection with one end of capacitor Cp1_1, NPN type BJT pipe Qp1_1
Pole, capacitor C1 one end be connected with one end of inductance L, the base stage of the NPN type BJT pipe Qp1_1 cathode with diode Dp1_1 simultaneously
It is connected with one end of resistance Rp1_2, the other end of resistance Rp1_2 is connected with the other end of capacitor Cs1_1, and resistance Rs1_3's is another
One end is connected with the other end of capacitor Cp1_1, and the other end of inductance L is connected with one end of capacitor C2, the other end of capacitor C2 with
One end of load is connected, the other end and the other end of capacitor C1, the anode of diode Dp1_1, NPN type BJT pipe Qp1_1 of load
Emitter, the anode of diode Ds1_1, the emitter of NPN type BJT pipe Qs1_1 be connected with the negative terminal of DC power supply Vi；
The autonomous units of the self-excitation resonant inverter further include resistance Rs1_2 and resistance Rp1_1；As resistance Rs1_2
When with resistance Rp1_1 as start-up resistor, one end of resistance Rs1_2 is connected with the base stage of NPN type BJT pipe Qs1_1, resistance Rp1_
1 one end is connected with the base stage of NPN type BJT pipe Qp1_1；When resistance Rs1_2 and resistance Rp1_1 is as pressure limiting resistance, resistance
One end of Rs1_2 is connected with the other end of capacitor Cs1_1, and one end of resistance Rp1_1 is connected with the other end of capacitor Cp1_1.
Above scheme is the single-phase output form of self-excitation resonant inverter.
Further, the other end of resistance Rs1_2 is connect with the other end of resistance Rs1_1, the other end and electricity of resistance Rp1_1
Feel the other end connection of Lp1_1；Alternatively, the other end of resistance Rs1_2 and the other end of resistance Rp1_1 are with DC power supply Vi's
Anode connection.
Further, the self-excitation resonant inverter further includes a rectification branch, and the rectification branch includes two poles
The anode of pipe Da1 and capacitor Ca1, diode Da1 are connected with the other end of inductance Lp1_1, the cathode and capacitor of diode Da1
One end of Ca1 is connected, and the other end of capacitor Ca1 is connected with the negative terminal of DC power supply Vi.Using the rectification branch, can choose
Reconfiguration scheme are as follows: the other end of resistance Rs1_2 and the other end of resistance Rp1_1 are connected to the cathode of diode Da1.The program
It is able to ascend capacity.
A kind of self-excitation resonant inverter, including an autonomous units, capacitor C1_1 are to capacitor Cn_1, capacitor C1_2 to electricity
Hold Cn_2 and inductance L1_1 to inductance Ln_1, the autonomous units include resistance Rp1_2 to resistance Rpn_2, inductance Lp1_1 to electricity
Feel Lpn_1, capacitor Cp1_1 to capacitor Cpn_1, NPN type BJT pipe Qp1_1 to NPN type BJT pipe Qpn_1 and diode Dp1_1 extremely
Diode Dpn_1, one end of the inductance Lpj_1 are connected with the anode of DC power supply Vi, the other end of inductance Lpj_1 simultaneously with
One end of capacitor Cpj_1, the collector of NPN type BJT pipe Qpj_1, capacitor Cj_1 one end be connected with one end of inductance Lj_1, electricity
The other end of sense Lj_1 is connected with one end of capacitor Cj_2, and the other end of capacitor Cj_2 is connected with one end of load j, NPN type BJT
The base stage of pipe Qpj_1 is connected with the cathode of one end of resistance Rpj_2 and diode Dpj_1 simultaneously, the hair of NPN type BJT pipe Qpj_1
Emitter-base bandgap grading simultaneously with the anode of diode Dpj_1, capacitor Cj_1 the other end, load the other end of j and the negative terminal of DC power supply Vi
It is connected, the value range of j is 1 to n；
The other end of the capacitor Cp1_1 is connected with the other end of resistance Rp2_2, and so on, the capacitor Cpn-1_1
The other end be connected with the other end of resistance Rpn_2, the other end of the capacitor Cpn_1 is connected with the other end of resistance Rp1_2；
The autonomous units of the self-excitation resonant inverter further include resistance Rp1_1 to resistance Rpn_1；As resistance Rp1_1
When to resistance Rpn_1 as start-up resistor, one end of resistance Rpj_1 is connected with the base stage of NPN type BJT pipe Qpj_1, the value of j
Range is 1 to n；When resistance Rp1_1 to resistance Rpn_1 is as pressure limiting resistance, one end of resistance Rpj_1 is with capacitor Cpj_1's
The other end is connected, and the value range of j is 1 to n.
Above scheme is the heterogeneous output form of self-excitation resonant inverter.
Further, the other end of resistance Rpj_1 is connected with the other end of inductance Lpj_1；Alternatively, resistance Rpj_1's is another
End is connected to the anode of DC power supply Vi.
Further, the self-excitation resonant inverter further includes a rectification branch, and the rectification branch includes two poles
Pipe Da1_1 is connected to diode Dan_1 and capacitor Ca1, the anode of diode Daj_1 with the other end of inductance Lpj_1, diode
The cathode of Daj_1 is connected with one end of capacitor Ca1, and the other end of capacitor Ca1 is connected with the negative terminal of DC power supply Vi.It is whole using this
Flow branch, the reconfiguration scheme that can choose are as follows: the other end of resistance Rpj_1 is connected to the cathode of diode Daj_1.The program can
With hoist capacity.
The technical concept of the utility model are as follows: first construct autonomous units, then constitute resonance inverter using autonomous units
Single-phase and heterogeneous output form, to solve low-voltage starting problem when DC voltage input.
The beneficial effects of the utility model are mainly manifested in: the single-phase and multiphase of resonance inverter is constituted using autonomous units
Output form, starting of oscillation are easy, and are suitble to the workplace of low dc voltage input, are able to satisfy the voltage conversion requirements of DC-AC.
Detailed description of the invention
Fig. 1 is the first circuit diagram of the utility model embodiment 1.
Fig. 2 is second of circuit diagram of the utility model embodiment 1.
Fig. 3 is the third circuit diagram of the utility model embodiment 1.
Fig. 4 is the applicable resistive load of the utility model single-phase output form.
Fig. 5 is the applicable resistance sense load of the utility model single-phase output form.
Fig. 6 is simulation waveform when the utility model embodiment 1 is using the first circuit under the conditions of resistive load.
Fig. 7 is simulation waveform when the utility model embodiment 1 is using second of circuit under resistance sense loading condition.
Fig. 8 is the first circuit diagram of the utility model embodiment 2.
Fig. 9 is second of circuit diagram of the utility model embodiment 2.
Figure 10 is the third circuit diagram of the utility model embodiment 2.
Figure 11 is simulation waveform when the utility model embodiment 2 is using the first circuit under the conditions of resistive load.
Figure 12 is simulation waveform when the utility model embodiment 2 is using second of circuit under resistance sense loading condition.
Figure 13 is the first circuit diagram of the utility model embodiment 3.
Figure 14 is second of circuit diagram of the utility model embodiment 3.
Figure 15 is the third circuit diagram of the utility model embodiment 3.
Figure 16 is the applicable resistive load of the utility model heterogeneous output form.
Figure 17 is the applicable load comprising transformer of the utility model heterogeneous output form.
Figure 18 is simulation waveform when the utility model embodiment 3 is using the first circuit under the conditions of resistive load.
Figure 19 is simulation waveform when using second of circuit comprising the utility model embodiment 3 under the conditions of transformer load
Figure.
Figure 20 is the first circuit diagram of the utility model embodiment 4.
Figure 21 is second of circuit diagram of the utility model embodiment 4.
Figure 22 is the third circuit diagram of the utility model embodiment 4.
Figure 23 is simulation waveform when the utility model embodiment 4 is using the first circuit under the conditions of resistive load.
Figure 24 is simulation waveform when using second of circuit comprising the utility model embodiment 4 under the conditions of transformer load
Figure.
Specific embodiment
The utility model is further described with reference to the accompanying drawing.
Embodiment 1
Referring to FIG. 1, FIG. 2 and FIG. 3, a kind of self-excitation resonant inverter, including an autonomous units, capacitor C1, capacitor C2
With inductance L, the autonomous units include resistance Rs1_1, resistance Rs1_3, resistance Rp1_2, inductance Lp1_1, capacitor Cs1_1, electricity
Hold Cp1_1, NPN type BJT pipe Qs1_1, NPN type BJT pipe Qp1_1, diode Ds1_1 and diode Dp1_1, the resistance Rs1_
1 one end is connected with one end of the anode of DC power supply Vi and inductance Lp1_1 simultaneously, the other end of resistance Rs1_1 and meanwhile with electricity
The one end for holding Cs1_1 is connected with the collector of NPN type BJT pipe Qs1_1, the base stage of NPN type BJT pipe Qs1_1 while and diode
The cathode of Ds1_1 is connected with one end of resistance Rs1_3, the other end of inductance Lp1_1 while one end with capacitor Cp1_1, NPN type
The collector of BJT pipe Qp1_1, one end of capacitor C1 are connected with one end of inductance L, the base stage of NPN type BJT pipe Qp1_1 simultaneously with
The cathode of diode Dp1_1 is connected with one end of resistance Rp1_2, the other end phase of the other end and capacitor Cs1_1 of resistance Rp1_2
Even, the other end of resistance Rs1_3 is connected with the other end of capacitor Cp1_1, and the other end of inductance L is connected with one end of capacitor C2,
The other end of capacitor C2 is connected with one end of load, the other end and the other end of capacitor C1, the sun of diode Dp1_1 of load
Pole, the emitter of NPN type BJT pipe Qp1_1, the anode of diode Ds1_1, NPN type BJT pipe Qs1_1 emitter and direct current
The negative terminal of source Vi is connected；The autonomous units of the self-excitation resonant inverter further include resistance Rs1_2 and resistance Rp1_1, resistance
Rs1_2 and resistance Rp1_1 is connected as start-up resistor, one end of resistance Rs1_2 with the base stage of NPN type BJT pipe Qs1_1, resistance
One end of Rp1_1 is connected with the base stage of NPN type BJT pipe Qp1_1.
The scheme of the present embodiment is the single-phase output form of self-excitation resonant inverter.
With further reference to Fig. 1, when the self-excitation resonant inverter uses the first circuit, the resistance Rs1_2's
The other end is connect with the other end of resistance Rs1_1, and the other end of resistance Rp1_1 is connect with the other end of inductance Lp1_1.
Oscillation when embodiment 1 is using the first circuit, needed for being generated using the inconsistency inside autonomous units.Assuming that
After DC power supply Vi is powered on, NPN type BJT pipe Qp1_1 takes the lead in being connected.When Qp1_1 conducting, Qs1_1 cut-off, inductance Lp1_1 fills
Magnetic, inductive current iLp1_1 are gradually increased, and capacitor C1 electric discharge, DC power supply Vi passes through resistance Rs1_1, resistance Rs1_2 and resistance
Rs1_3 charges to capacitor Cp1_1, and the base emitter voltage vs1 of Qs1_1 is gradually increased.Meanwhile capacitor Cs1_1 passes through resistance
Rp1_2 and resistance Rp1_1 discharge.When vs1 reaches the base-emitter conduction voltage drop of Qs1_1, Qs1_1 conducting.Qs1_
After 1 conducting, because of the effect of Cs1_1, Qp1_1 cut-off.When Qp1_1 cut-off, inductance Lp1_1 puts magnetic, inductive current iLp1_1 by
It is decrescence small, it is charged by resistance Rp1_1 and resistance Rp1_2 to capacitor Cs1_1 while charging to capacitor C1, the base of Qp1_1
Pole-emitter voltage vp1 is gradually increased.Meanwhile capacitor Cp1_1 is discharged by resistance Rs1_3 and resistance Rs1_2.Work as vp1
When reaching the base-emitter conduction voltage drop of Qp1_1, Qp1_1 conducting.After Qp1_1 conducting, because of the effect of Cp1_1, Qs1_1 is cut
Only.In cycles.The parameter of appropriate selection inductance L and capacitor C2, generate resonance with autonomous units, can get the output electricity of exchange
Press vo.The effect of Ds1_1 and Dp1_1 is protection Qs1_1 and Qp1_1 and participates in vibrating.Rs1_2 and Rp1_1 is start-up resistor.
Fig. 4 is the applicable resistive load of embodiment 1.Fig. 6 be under the conditions of resistive load the utility model embodiment 1 using the
A kind of simulation waveform when circuit.Self-excitation working condition when the first circuit of the use of embodiment 1 as shown in Figure 6, it can be incited somebody to action
DC input voitage Vi is converted to ac output voltage vo.
Referring further to Figure 2, when the self-excitation resonant inverter uses second of circuit, the resistance Rs1_2's
The other end of the other end and resistance Rp1_1 are connect with the anode of DC power supply Vi.
The course of work and embodiment 1 when embodiment 1 is using second of circuit use course of work when the first circuit
It is similar.
Fig. 5 is the applicable resistance sense load of embodiment 1.Fig. 7 be under resistance sense loading condition the utility model embodiment 1 using the
Simulation waveform when two kinds of circuits.Self-excitation working condition when second of circuit of the use of embodiment 1 as shown in Figure 7, it can be incited somebody to action
DC input voitage Vi is converted to ac output voltage vo.During the work time, the inductance in load has also assisted in resonance.
With further reference to Fig. 3, the self-excitation resonant inverter further includes a rectification branch, and the rectification branch includes
The anode of diode Da1 and capacitor Ca1, diode Da1 are connected with the other end of inductance Lp1_1, the cathode and electricity of diode Da1
The one end for holding Ca1 is connected, and the other end of capacitor Ca1 is connected with the negative terminal of DC power supply Vi.Utilize the rectification branch, the self-excitation
The third circuit can be used in formula resonance inverter, i.e. the other end of the other end of resistance Rs1_2 and resistance Rp1_1 is connected to two
The cathode of pole pipe Da1.
The course of work and embodiment 1 when embodiment 1 is using the third circuit use course of work when second of circuit
It is similar, but embodiment 1 uses capacity when the third circuit to be greater than capacity of the embodiment 1 using second of circuit when.
Embodiment 2
Referring to Fig. 8, Fig. 9 and Figure 10, resistance Rs1_2 and resistance Rp1_1 are used as pressure limiting resistance, one end of resistance Rs1_2 and
The other end of capacitor Cs1_1 is connected, and one end of resistance Rp1_1 is connected with the other end of capacitor Cp1_1.
Remaining structure of embodiment 2 is same as Example 1, and the course of work is also similar to Example 1.
With further reference to Fig. 8, when the self-excitation resonant inverter uses the first circuit, the resistance Rs1_2's
The other end is connect with the other end of resistance Rs1_1, and the other end of resistance Rp1_1 is connect with the other end of inductance Lp1_1.
Oscillation when embodiment 2 is using the first circuit, needed for being generated using the inconsistency inside autonomous units.Assuming that
After DC power supply Vi is powered on, NPN type BJT pipe Qp1_1 takes the lead in being connected.When Qp1_1 conducting, Qs1_1 cut-off, inductance Lp1_1 fills
Magnetic, inductive current iLp1_1 are gradually increased, and the end voltage vC1 of capacitor C1 is gradually increased therewith, the base-emitter electricity of Qs1_1
Pressure vs1 is also gradually increased.Meanwhile capacitor Cp1_1 is discharged by Rp1_1；Vi is by resistance Rs1_1 and Rp1_2 to capacitor
Cs1_1 charging.When vs1 reaches the base-emitter conduction voltage drop of Qs1_1, Qs1_1 conducting.After Qs1_1 conducting, because of Cs1_1
Effect, Qp1_1 cut-off.When Qp1_1 cut-off, inductance Lp1_1 puts magnetic, and inductive current iLp1_1 is gradually reduced, and is giving capacitor
It is charged by Rs1_3 to capacitor Cp1_1 while C1 charges.Meanwhile capacitor Cs1_1 is discharged by Rs1_2.Because of resonance
Reason, vC1 can be fallen after rise after reaching peak value.During vC1 is fallen after rise, when vs1 falls to the base-emitter conducting of Qs1_1
When below pressure drop, Qs1_1 cut-off.After Qs1_1 cut-off, Qp1_1 conducting.In cycles.The ginseng of appropriate selection inductance L and capacitor C2
Number generates resonance with autonomous units, can get the output voltage vo of exchange.The work of the diode Ds1_1 and diode Dp1_1
With being that protection and participates in vibrating Qs1_1 and Qp1_1.The effect of the resistance Rs1_2 and resistance Rp1_1 is limiting capacitance Cs1_1
With the end voltage of capacitor Cp1_1.
Fig. 4 is the applicable resistive load of embodiment 2.Figure 11 is the use of the utility model embodiment 2 under the conditions of resistive load
Simulation waveform when the first circuit.Self-excitation working condition when embodiment 2 is using the first circuit as shown in Figure 11, it can
DC input voitage Vi is converted to ac output voltage vo.
Further referring to figure 9, when the self-excitation resonant inverter uses second of circuit, the resistance Rs1_2's
The other end of the other end and resistance Rp1_1 are connect with the anode of DC power supply Vi.
The course of work and embodiment 2 when embodiment 2 is using second of circuit use course of work when the first circuit
It is similar.
Fig. 5 is the applicable resistance sense load of embodiment 2.Figure 12 is that the utility model embodiment 2 uses under resistance sense loading condition
Simulation waveform when second of circuit.Self-excitation working condition when embodiment 2 is using second of circuit as shown in Figure 12, it can
DC input voitage Vi is converted to ac output voltage vo.During the work time, the inductance in load has also assisted in resonance.
With further reference to Figure 10, the self-excitation resonant inverter further includes a rectification branch, the rectification branch packet
Include diode Da1 and capacitor Ca1, the anode of diode Da1 is connected with the other end of inductance Lp1_1, the cathode of diode Da1 with
One end of capacitor Ca1 is connected, and the other end of capacitor Ca1 is connected with the negative terminal of DC power supply Vi.Using the rectification branch, it is described from
Swashing formula resonance inverter can be used the third circuit, i.e. the other end of the other end of resistance Rs1_2 and resistance Rp1_1 is connected to
The cathode of diode Da1.
The course of work and embodiment 2 when embodiment 2 is using the third circuit use course of work when second of circuit
It is similar, but embodiment 2 uses capacity when the third circuit to be greater than capacity of the embodiment 2 using second of circuit when.
Embodiment 3
A kind of self-excitation resonant inverter, including an autonomous units, capacitor C1_1 are to capacitor Cn_1, capacitor C1_2 to electricity
Hold Cn_2 and inductance L1_1 to inductance Ln_1, the autonomous units include resistance Rp1_2 to resistance Rpn_2, inductance Lp1_1 to electricity
Feel Lpn_1, capacitor Cp1_1 to capacitor Cpn_1, NPN type BJT pipe Qp1_1 to NPN type BJT pipe Qpn_1 and diode Dp1_1 extremely
Diode Dpn_1, one end of the inductance Lpj_1 are connected with the anode of DC power supply Vi, the other end of inductance Lpj_1 simultaneously with
One end of capacitor Cpj_1, the collector of NPN type BJT pipe Qpj_1, capacitor Cj_1 one end be connected with one end of inductance Lj_1, electricity
The other end of sense Lj_1 is connected with one end of capacitor Cj_2, and the other end of capacitor Cj_2 is connected with one end of load j, NPN type BJT
The base stage of pipe Qpj_1 is connected with the cathode of one end of resistance Rpj_2 and diode Dpj_1 simultaneously, the hair of NPN type BJT pipe Qpj_1
Emitter-base bandgap grading simultaneously with the anode of diode Dpj_1, capacitor Cj_1 the other end, load the other end of j and the negative terminal of DC power supply Vi
It is connected, the value range of j is 1 to n；The other end of the capacitor Cp1_1 is connected with the other end of resistance Rp2_2, and so on,
The other end of the capacitor Cpn-1_1 is connected with the other end of resistance Rpn_2, the other end and resistance of the capacitor Cpn_1
The other end of Rp1_2 is connected；
The autonomous units of the self-excitation resonant inverter further include resistance Rp1_1 to resistance Rpn_1, and resistance Rp1_1 is extremely
Resistance Rpn_1 is connected as start-up resistor, one end of resistance Rpj_1 with the base stage of NPN type BJT pipe Qpj_1, the value range of j
It is 1 to n.
The scheme of the present embodiment is the heterogeneous output form of self-excitation resonant inverter.
With further reference to Figure 13, when the self-excitation resonant inverter uses the first circuit, the resistance Rpj_1's
The other end is connected with the other end of inductance Lpj_1, and the value range of j is 1 to n.
Oscillation when embodiment 3 is using the first circuit, needed for being generated using the inconsistency inside autonomous units.Assuming that
After DC power supply Vi is powered on, NPN type BJT pipe Qp1_1 takes the lead in being connected.When Qp1_1 conducting, inductance Lp1_1 magnetizes, inductive current
ILp1_1 is gradually increased, and DC power supply Vi is charged by inductance Lp2_1, resistance Rp2_1 and resistance Rp2_2 to capacitor Cp1_1.
The base emitter voltage vp2 of Qp2_1 is gradually increased.Meanwhile capacitor Cpn_1 is discharged by resistance Rp1_2.When vp2 reaches
To Qp2_1 base-emitter conduction voltage drop when, Qp2_1 conducting.When the base that capacitor Cpn_1 electric discharge causes vp1 to be lower than Qp1_1
When pole-emitter conduction voltage drop, Qp1_1 cut-off.When Qp1_1 cut-off, inductance Lp1_1 puts magnetic, and inductive current iLp1_1 is gradually
Reduce, capacitor C1_1 charging, capacitance voltage vC1_1 is gradually increased.Meanwhile capacitor Cp1_1 passes through resistance Rp2_2 and resistance Rp2_
1 discharges.When capacitor Cp1_1 electric discharge causes vp2 to be lower than the base-emitter conduction voltage drop of Qp2_1, Qp2_1 cut-off.With
This analogizes, and Qpn_1 lags behind Qpn-1_1 on and off, and Qp1_1 lags behind Qpn_1 on and off.In cycles.Suitably
The parameter for selecting inductance L1_1 to inductance Ln_1 and capacitor C1_2 to capacitor Cn_2 generates resonance with autonomous units, can get and hand over
The output voltage vo1 to von of stream.The effect of Dpj_1 is to protect Qpj_1 and participate in vibrating, and Rpj_1 is start-up resistor, the value of j
Range is 1 to n.
Figure 16 is the applicable resistive load of embodiment 3.Figure 18 is the use of the utility model embodiment 3 under the conditions of resistive load
The simulation waveform of (n=3) when the first circuit.Self-excitation work shape when embodiment 3 is using the first circuit as shown in Figure 18
State, DC input voitage Vi can be converted to ac output voltage vo1 to vo3 by it, and vo1 to vo3 is successively lagged centainly
Phase.
With further reference to Figure 14, when the self-excitation resonant inverter uses second of circuit, the resistance Rpj_1's
The other end is connected to the anode of DC power supply Vi, and the value range of j is 1 to n.
The course of work and embodiment 3 when embodiment 3 is using second of circuit use course of work when the first circuit
It is similar.
Figure 17 is the applicable load comprising transformer of embodiment 3.Figure 19 is comprising originally practical under the conditions of transformer load
The simulation waveform of (n=2) when new embodiment 3 uses second of circuit.Embodiment 3 uses second of circuit as shown in Figure 19
When self-excitation working condition, it can realize wireless power transmission using transformer, DC input voitage Vi is converted to transformer
The ac output voltage vo1 ' to vo2 ' of secondary side, and vo1 ' to vo2 ' successively lags certain phase.
With further reference to Figure 15, the self-excitation resonant inverter further includes a rectification branch, the rectification branch packet
Diode Da1_1 is included to diode Dan_1 and capacitor Ca1, the anode of diode Daj_1 is connected with the other end of inductance Lpj_1,
The cathode of diode Daj_1 is connected with one end of capacitor Ca1, and the other end of capacitor Ca1 is connected with the negative terminal of DC power supply Vi.Benefit
With the rectification branch, the third circuit is can be used in the self-excitation resonant inverter, i.e. the other end of resistance Rpj_1 is connected to two
The cathode of pole pipe Daj_1, the value range of j are 1 to n.
The course of work and embodiment 3 when embodiment 3 is using the third circuit use course of work when second of circuit
It is similar, but embodiment 3 uses capacity when the third circuit to be greater than capacity of the embodiment 3 using second of circuit when.
Embodiment 4
Referring to Figure 20, Figure 21 and Figure 22, resistance Rp1_1 to resistance Rpn_1 is as pressure limiting resistance, one end of resistance Rpj_1
It is connected with the other end of capacitor Cpj_1, the value range of j is 1 to n.
Remaining structure of embodiment 4 is same as Example 3, and the course of work is also similar to Example 3.
Referring further to Figure 20, when the self-excitation resonant inverter uses the first circuit, the resistance Rpj_1's
The other end is connected with the other end of inductance Lpj_1, and the value range of j is 1 to n.
Oscillation when embodiment 4 is using the first circuit, needed for being generated using the inconsistency inside autonomous units.Assuming that
After DC power supply Vi is powered on, NPN type BJT pipe Qp1_1 takes the lead in being connected.When Qp1_1 conducting, inductance Lp1_1 magnetizes, inductive current
ILp1_1 is gradually increased, and Cp1_1 is discharged by Dp2_1 and Rp2_2.Meanwhile Vi is filled by inductance Lpn_1 to Cpn_1 and Cn_1
Electricity.When Cpn_1 and Cn_1 charge to certain phase, capacitance voltage vCn_1 starts to fall after reaching maximum value, will lead to Qp1_
1 base emitter voltage vp1 is gradually reduced.When vp1 is lower than the base-emitter conducting voltage of Qp1_1, Qp1_1 is cut
Only.When Qp1_1 cut-off, inductance Lp1_1 puts magnetic, and inductive current iLp1_1 is gradually reduced, and Vi is by inductance Lp1_1 to Cp1_1
It charges with C1_1, capacitance voltage vC1_1 is gradually increased, and the base emitter voltage vp2 of Qp2_1 is gradually increased.When vp2 reaches
When the base-emitter conducting voltage of Qp2_1, Qp2_1 conducting.And so on, Qpn_1 lags behind Qpn-1_1 on and off,
Qp1_1 lags behind Qpn_1 on and off.In cycles.It is appropriate to select inductance L1_1 to inductance Ln_1 and capacitor C1_2 to electricity
The parameter for holding Cn_2 generates resonance with autonomous units, can get the output voltage vo1 to von of exchange.The diode Dpj_1
Effect be that protection and participates in vibrating Qpj_1.The effect of the resistance Rpj_1 is the end voltage of limiting capacitance Cpj_1, and j's takes
Value range is 1 to n.
Figure 16 is the applicable resistive load of embodiment 4.Figure 23 is the use of the utility model embodiment 4 under the conditions of resistive load
The simulation waveform of (n=3) when the first circuit.Self-excitation work shape when embodiment 4 is using the first circuit as shown in Figure 23
State, DC input voitage Vi can be converted to ac output voltage vo1 to vo3 by it, and vo1 to vo3 is successively lagged centainly
Phase.
Referring further to Figure 21, when the self-excitation resonant inverter uses second of circuit, the resistance Rpj_1's
The other end is connected to the anode of DC power supply Vi, and the value range of j is 1 to n.
The course of work and embodiment 4 when embodiment 4 is using second of circuit use course of work when the first circuit
It is similar.
Figure 17 is the applicable load comprising transformer of embodiment 4.Figure 24 is comprising originally practical under the conditions of transformer load
The simulation waveform of (n=2) when new embodiment 4 uses second of circuit.Embodiment 4 uses second of circuit as shown in Figure 24
When self-excitation working condition, it can realize wireless power transmission using transformer, DC input voitage Vi is converted to transformer
The ac output voltage vo1 ' to vo2 ' of secondary side, and vo1 ' to vo2 ' successively lags certain phase.
Referring further to Figure 22, the self-excitation resonant inverter further includes a rectification branch, the rectification branch packet
Diode Da1_1 is included to diode Dan_1 and capacitor Ca1, the anode of diode Daj_1 is connected with the other end of inductance Lpj_1,
The cathode of diode Daj_1 is connected with one end of capacitor Ca1, and the other end of capacitor Ca1 is connected with the negative terminal of DC power supply Vi.Benefit
With the rectification branch, the third circuit is can be used in the self-excitation resonant inverter, i.e. the other end of resistance Rpj_1 is connected to two
The cathode of pole pipe Daj_1, the value range of j are 1 to n.
The course of work and embodiment 4 when embodiment 4 is using the third circuit use course of work when second of circuit
It is similar, but embodiment 4 uses capacity when the third circuit to be greater than capacity of the embodiment 4 using second of circuit when.
Content described in this specification embodiment is only an enumeration of the implementation forms of the utility model concept, this is practical new
The protection scope of type should not be construed as being limited to the specific forms stated in the embodiments, the protection scope of the utility model
And in those skilled in the art according to the utility model design it is conceivable that equivalent technologies mean.
Claims (8)
1. a kind of self-excitation resonant inverter, it is characterised in that: the self-excitation resonant inverter includes autonomous units, an electricity
Holding C1, capacitor C2 and inductance L, the autonomous units includes resistance Rs1_1, resistance Rs1_3, resistance Rp1_2, inductance Lp1_1, electricity
Hold Cs1_1, capacitor Cp1_1, NPN type BJT pipe Qs1_1, NPN type BJT pipe Qp1_1, diode Ds1_1 and diode Dp1_1, institute
It states one end of resistance Rs1_1 while being connected with one end of the anode of DC power supply Vi and inductance Lp1_1, resistance Rs1_1's is another
End is connected with the collector of one end of capacitor Cs1_1 and NPN type BJT pipe Qs1_1 simultaneously, and the base stage of NPN type BJT pipe Qs1_1 is same
When be connected with one end of the cathode of diode Ds1_1 and resistance Rs1_3, the other end of inductance Lp1_1 is simultaneously with capacitor Cp1_1's
One end, the collector of NPN type BJT pipe Qp1_1, capacitor C1 one end be connected with one end of inductance L, NPN type BJT pipe Qp1_1's
Base stage is connected with one end of the cathode of diode Dp1_1 and resistance Rp1_2 simultaneously, the other end and capacitor Cs1_1 of resistance Rp1_2
The other end be connected, the other end of resistance Rs1_3 is connected with the other end of capacitor Cp1_1, and the other end of inductance L is with capacitor C2's
One end is connected, and the other end of capacitor C2 is connected with one end of load, the other end of load and the other end, the diode of capacitor C1
The anode of Dp1_1, the emitter of NPN type BJT pipe Qp1_1, the anode of diode Ds1_1, NPN type BJT pipe Qs1_1 emitter
It is connected with the negative terminal of DC power supply Vi；
The autonomous units of the self-excitation resonant inverter further include resistance Rs1_2 and resistance Rp1_1；When resistance Rs1_2 and electricity
When hindering Rp1_1 as start-up resistor, one end of resistance Rs1_2 is connected with the base stage of NPN type BJT pipe Qs1_1, resistance Rp1_1's
One end is connected with the base stage of NPN type BJT pipe Qp1_1；When resistance Rs1_2 and resistance Rp1_1 is as pressure limiting resistance, resistance Rs1_
2 one end is connected with the other end of capacitor Cs1_1, and one end of resistance Rp1_1 is connected with the other end of capacitor Cp1_1.
2. self-excitation resonant inverter as described in claim 1, it is characterised in that: the self-excitation resonant inverter further includes
One rectification branch, the rectification branch include diode Da1 and capacitor Ca1, and the anode of diode Da1 is with inductance Lp1_1's
The other end is connected, and the cathode of diode Da1 is connected with one end of capacitor Ca1, the other end of capacitor Ca1 and bearing for DC power supply Vi
End is connected.
3. self-excitation resonant inverter as claimed in claim 1 or 2, it is characterised in that: the other end of the resistance Rs1_2 with
The other end of resistance Rs1_1 connects, and the other end of resistance Rp1_1 is connect with the other end of inductance Lp1_1；Alternatively, resistance Rs1_2
The other end and the other end of resistance Rp1_1 connect with the anode of DC power supply Vi.
4. self-excitation resonant inverter as claimed in claim 2, it is characterised in that: the other end and electricity of the resistance Rs1_2
The other end of resistance Rp1_1 is connected to the cathode of diode Da1.
5. a kind of self-excitation resonant inverter, it is characterised in that: the self-excitation resonant inverter includes autonomous units, an electricity
Holding C1_1 to capacitor Cn_1, capacitor C1_2 to capacitor Cn_2 and inductance L1_1 to inductance Ln_1, the autonomous units includes resistance
Rp1_2 to resistance Rpn_2, inductance Lp1_1 to inductance Lpn_1, capacitor Cp1_1 to capacitor Cpn_1, NPN type BJT pipe Qp1_1 extremely
One end of NPN type BJT pipe Qpn_1 and diode Dp1_1 to diode Dpn_1, the inductance Lpj_1 and DC power supply Vi are just
End is connected, the other end of inductance Lpj_1 while collector, capacitor Cj_ with one end of capacitor Cpj_1, NPN type BJT pipe Qpj_1
1 one end is connected with one end of inductance Lj_1, and the other end of inductance Lj_1 is connected with one end of capacitor Cj_2, and capacitor Cj_2's is another
One end is connected with one end of load j, the base stage of NPN type BJT pipe Qpj_1 while one end and diode Dpj_1 with resistance Rpj_2
Cathode be connected, the emitter of the NPN type BJT pipe Qpj_1 other end, negative with the anode of diode Dpj_1, capacitor Cj_1 simultaneously
The other end for carrying j is connected with the negative terminal of DC power supply Vi, and the value range of j is 1 to n；
The other end of the capacitor Cp1_1 is connected with the other end of resistance Rp2_2, and so on, the capacitor Cpn-1_1's is another
One end is connected with the other end of resistance Rpn_2, and the other end of the capacitor Cpn_1 is connected with the other end of resistance Rp1_2；
The autonomous units of the self-excitation resonant inverter further include resistance Rp1_1 to resistance Rpn_1；As resistance Rp1_1 to electricity
When hindering Rpn_1 as start-up resistor, one end of resistance Rpj_1 is connected with the base stage of NPN type BJT pipe Qpj_1, the value range of j
It is 1 to n；When resistance Rp1_1 to resistance Rpn_1 is as pressure limiting resistance, one end of resistance Rpj_1 is another with capacitor Cpj_1's
End is connected, and the value range of j is 1 to n.
6. self-excitation resonant inverter as claimed in claim 5, it is characterised in that: the self-excitation resonant inverter further includes
One rectification branch, the rectification branch include diode Da1_1 to diode Dan_1 and capacitor Ca1, diode Daj_1's
Anode is connected with the other end of inductance Lpj_1, and the cathode of diode Daj_1 is connected with one end of capacitor Ca1, and capacitor Ca1's is another
One end is connected with the negative terminal of DC power supply Vi.
7. such as self-excitation resonant inverter described in claim 5 or 6, it is characterised in that: the other end of the resistance Rpj_1 with
The other end of inductance Lpj_1 is connected；Alternatively, the other end of resistance Rpj_1 is connected to the anode of DC power supply Vi.
8. self-excitation resonant inverter as claimed in claim 6, it is characterised in that: the other end of the resistance Rpj_1 connects
To the cathode of diode Daj_1.
Applications Claiming Priority (8)
| Application Number | Priority Date | Filing Date | Title |
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| CN2018204493285 | 2018-04-02 | ||
| CN201820449328 | 2018-04-02 | ||
| CN2018204493603 | 2018-04-02 | ||
| CN2018204491307 | 2018-04-02 | ||
| CN201820449130 | 2018-04-02 | ||
| CN201820449376 | 2018-04-02 | ||
| CN2018204493764 | 2018-04-02 | ||
| CN201820449360 | 2018-04-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109787496A (en) * | 2018-04-02 | 2019-05-21 | 浙江工业大学 | Self-excitation resonant inverter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109787496A (en) * | 2018-04-02 | 2019-05-21 | 浙江工业大学 | Self-excitation resonant inverter |
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