CN204517695U - A kind of inverter - Google Patents
A kind of inverter Download PDFInfo
- Publication number
- CN204517695U CN204517695U CN201520192116.XU CN201520192116U CN204517695U CN 204517695 U CN204517695 U CN 204517695U CN 201520192116 U CN201520192116 U CN 201520192116U CN 204517695 U CN204517695 U CN 204517695U
- Authority
- CN
- China
- Prior art keywords
- inverter
- voltage
- end mouth
- circuit
- output end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model belongs to power control unit technical field, be specifically related to a kind of inverter, comprise direct-flow input end mouth, inverter circuit d. c. voltage signal being carried out inversion, transformer and ac output end mouth, between described transformer and ac output end mouth, be connected with voltage adjustment mechanism and voltage stabilizing circuit.This inverter of the present utility model, the basis of inversion adds the function of output voltage adjustment and the function of voltage stabilizing, not only can carry out the adjustment of large-scale voltage output, obtain the alternating voltage wanted, and to a certain extent, can avoid transient voltage injury that is excessive or small power supply itself excessively, structure is simple, and effect is practical.
Description
Technical field
The utility model belongs to power control unit technical field, is specifically related to a kind of inverter.
Background technology
Inverter, utilizes thyristor circuit that direct current is transformed into the power supply of alternating current exactly.Such as: the electric locomotive of application thyristor, make DC motor run as generator brake when descending slopes, the potential energy of locomotive is transformed into electric energy, and counter delivering in AC network is gone.And for example operating DC motor, make it brake rapidly, and motor also can be allowed to make generator operation, and be electric energy the kinetic energy of motor, counter delivering in electrical network is gone.
Now, inverter is widely used in all kinds of: electric power, communication, industrial equipment, satellite communication equipment, military vehicle-mounted, ambulance, police car, boats and ships, solar energy and wind power generation field.
Concentration supply power power supply product is in the market standard output mostly, and inverter is no exception, even if there is partial power product can carry out Drazin inverse by the mode of external circuits, adjustable range is also little, and stability also has problems.If encountered low-voltage, big current or high direct voltage situation, how this processes, and certainly can adopt customization mode, but price is rather stiff, can client accept.
Utility model content
The purpose of this utility model is that the output overcoming existing inverter mostly is standard output, and Drazin inverse scope needs outer connection circuit, the problem that adjustable range is little and stability is bad when voltage instability.
For this reason, the utility model provides a kind of inverter, comprise direct-flow input end mouth, inverter circuit d. c. voltage signal being carried out inversion, transformer and ac output end mouth, between described transformer and ac output end mouth, be connected with voltage adjustment mechanism and voltage stabilizing circuit.
Described inverter circuit is self-excitation push-pull inverter.
Described voltage adjustment mechanism comprise be arranged on transformer secondary coil each layer line circle on contact and contact switch for being closed to contact realizing circuit conducting.
Described voltage adjustment mechanism is the slide rheostat before being serially connected in ac output end mouth.
Regulator potentiometer and filter is serially connected with between described direct-flow input end mouth and inverter circuit.
Described direct-flow input end mouth is dc-battery group or DC power supply connector.
Described ac output end mouth is parallel with electric capacity.
Described voltage stabilizing circuit is the simple voltage stabilizing circuit be made up of current-limiting resistance and voltage stabilizing didoe.
The beneficial effects of the utility model: this inverter of the present utility model, the basis of inversion adds the function of output voltage adjustment and the function of voltage stabilizing, not only can carry out the adjustment of large-scale voltage output, obtain the alternating voltage wanted, and to a certain extent, can avoid transient voltage injury that is excessive or small power supply itself excessively, structure is simple, and effect is practical.
Below with reference to accompanying drawing, the utility model is described in further details.
Accompanying drawing explanation
Fig. 1 is the utility model circuit theory schematic diagram.
Description of reference numerals: 1, direct-flow input end mouth; 2, inverter circuit; 3, transformer; 4, ac output end mouth; 5, voltage adjustment mechanism; 6, voltage stabilizing circuit; 7, regulator potentiometer; 8, filter.
Embodiment
Concentration supply power power supply product is in the market standard output mostly, and inverter is no exception, even if there is partial power product can carry out Drazin inverse by the mode of external circuits, adjustable range is also little, and stability also has problems.If encountered low-voltage, big current or high direct voltage situation, how this processes, certainly customization mode can be adopted, but price is rather stiff, can client accept, the utility model aims to provide a kind of cheap, simple inverter of structure, meeting can the function of regulation output voltage, and stable performance.
Embodiment 1:
The present embodiment provides a kind of inverter, its output voltage range is adjustable, comprise direct-flow input end mouth 1, the inverter circuit 2 d. c. voltage signal being carried out inversion, transformer 3 and ac output end mouth 4, between described transformer 3 and ac output end mouth 4, be connected with voltage adjustment mechanism 5 and voltage stabilizing circuit 6.
Inverter circuit 2 is specially self-excitation push-pull inverter in the present embodiment.As shown in Figure 1, after power supply is connected, triode VT1, VT2 be likely conducting simultaneously when starting, and electric current I c1 and Ic2 passes through armature winding N2 and N3 with contrary direction.Because the parameter of two pipes can not be just the same, thus two collector currents crossed at winding N2 and N3 two coil midstream always can not be equal, as Ic1>Ic2, the main flux in iron core and the induced voltage of coil decide primarily of the change of Ic1.Assuming that transformer and feedback coil corresponding end are as shown in the figure.When Ic1 presses the increase of figure direction, the feedback voltage on coil N4 makes VT2 base stage just be over the ground, and Ic2 is increased, and the increase of Ic2 makes again Ic2 continue to increase, and such positive feedback effect makes VT2 enter saturation condition rapidly.Feedback voltage on opposite coil N1 makes VT1 base stage be negative over the ground.Thus Ic1 is reduced, Ic1 reduces thereupon, and this positive feedback promptly makes VT1 enter cut-off state.So after power supply connection, triode VT1 ends, VT2 saturation conduction.The C shaped iron core of transformer standard makes, and the diode in circuit plays reverse withstand voltage clamper protective effect.
On the basis of the above, add voltage adjustment mechanism 5 and voltage stabilizing circuit 6, like this when this inverter output AC voltage of the present embodiment, by the voltage swing that regulation voltage governor motion 5 can regulate ac output end mouth 4 to export, Drazin inverse need not be carried out by the mode of external circuits, and by arranging the voltage adjustment mechanism 5 of different adjustment scope, the adjustment of different range voltage can be met, this scope decides according to needed for user.
Also set up voltage stabilizing circuit 6 in the present embodiment, as shown in the figure, be simple voltage-stabiliser tube voltage stabilizing circuit, realize voltage stabilizing function by semiconductor voltage-stabilizing diode and current-limiting resistance.When the instantaneous pressure encountered in circuit or moment low pressure, in the equipment use that especially some power, voltage are larger, voltage stabilizing circuit 6 can ensure the stability of output voltage, so just can ensure the stability of this inverter of the present embodiment.
Embodiment 2:
On the basis of embodiment 1, in the present embodiment, voltage adjustment mechanism 5 comprises and is arranged on the contact on each layer line circle of transformer 3 secondary coil and the contact switch for being closed to contact realizing circuit conducting.As shown in Figure 1, contact switch closes on different contacts, then the number of turn of the coil of place in circuit is different, and the transformation parameter that the different numbers of turn is formed is different, the voltage causing transformer to export like this is different, closes on different contact realize different output voltages according to adjustment contact switch.
Embodiment 3:
In the present embodiment, different from embodiment 2, voltage adjustment mechanism 5 is for being serially connected in the slide rheostat before ac output end mouth 4.As everyone knows, slide rheostat is a critical elements in circuit, and it can change the resistance of self by the position of mobile slide plate, thus plays the effect of control circuit.In circuit analysis, slide rheostat both can as a fixed value resistance, also can as a resistance-changing resistor.Like this, before ac output end mouth 4, be connected in series a slide rheostat 5, the different resistances like this by changing slide rheostat 5 can realize the different value of output voltage.
Embodiment 4:
Regulator potentiometer 7 and filter 8 is serially connected with between direct-flow input end mouth 1 and inverter circuit 2.Regulator potentiometer 7(RP) frequency of oscillation of class appropriate change circuit, filter 8 can receive the filtering of the signal of telecommunication and be amplified.
In the present embodiment, direct-flow input end mouth 1 can be dc-battery group, if dc-battery group, then this inverter can for instrument, instrument as stand-by power supply.
Direct-flow input end mouth 1 also can be DC power supply connector, and under this structure, this inverter is applicable to the power supply of more large equipment, is converted into by direct current and exchanges for equipment electricity consumption.
Further, ac output end mouth 4 is parallel with electric capacity, and electric capacity in parallel can the parasitic higher-order of oscillation of filtering.
In sum, this inverter of the present utility model, the basis of inversion adds the function of output voltage adjustment and the function of voltage stabilizing, not only can carry out the adjustment of large-scale voltage output, obtain the alternating voltage wanted, and to a certain extent, transient voltage injury that is excessive or small power supply itself excessively can be avoided, structure is simple, and effect is practical.
More than exemplifying is only illustrate of the present utility model, does not form the restriction to protection range of the present utility model, everyly all belongs within protection scope of the present invention with the same or analogous design of the utility model.
Claims (8)
1. an inverter, comprise direct-flow input end mouth (1), d. c. voltage signal carried out the inverter circuit (2) of inversion, connect inverter circuit (2) transformer (3) and ac output end mouth (4), it is characterized in that: between described transformer (3) and ac output end mouth (4), be connected with voltage adjustment mechanism (5) and voltage stabilizing circuit (6).
2. inverter as claimed in claim 1, is characterized in that: described inverter circuit (2) is self-excitation push-pull inverter.
3. inverter as claimed in claim 2, is characterized in that: described voltage adjustment mechanism (5) comprises and is arranged on the contact on each layer line circle of transformer (3) secondary coil and the contact switch for being closed to contact realizing circuit conducting.
4. inverter as claimed in claim 2, is characterized in that: described voltage adjustment mechanism (5) is for being serially connected in the front slide rheostat of ac output end mouth (4).
5. inverter as claimed in claim 1 or 2 or 3 or 4, is characterized in that: be serially connected with regulator potentiometer (7) and filter (8) between described direct-flow input end mouth (1) and inverter circuit (2).
6. inverter as claimed in claim 5, is characterized in that: described direct-flow input end mouth (1) is dc-battery group or DC power supply connector.
7. inverter as claimed in claim 2, is characterized in that: described ac output end mouth (4) is parallel with electric capacity.
8. inverter as claimed in claim 1, is characterized in that: described voltage stabilizing circuit (6) is the simple voltage stabilizing circuit be made up of current-limiting resistance and voltage stabilizing didoe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520192116.XU CN204517695U (en) | 2015-04-01 | 2015-04-01 | A kind of inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520192116.XU CN204517695U (en) | 2015-04-01 | 2015-04-01 | A kind of inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204517695U true CN204517695U (en) | 2015-07-29 |
Family
ID=53715623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520192116.XU Expired - Fee Related CN204517695U (en) | 2015-04-01 | 2015-04-01 | A kind of inverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204517695U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110554286A (en) * | 2019-09-16 | 2019-12-10 | 桂林理工大学 | Voltage-adjustable insulation detection device |
-
2015
- 2015-04-01 CN CN201520192116.XU patent/CN204517695U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110554286A (en) * | 2019-09-16 | 2019-12-10 | 桂林理工大学 | Voltage-adjustable insulation detection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105281288B (en) | A kind of direct-current breaker topology having two-way blocking-up function | |
| CN111541369A (en) | Staggered parallel DC/DC boost converter based on switch inductor/switch capacitor unit | |
| CN204696914U (en) | A kind of novel B oost converter | |
| CN104009463B (en) | A kind of tandem type flow controller being applicable to direct current transportation | |
| CN104270085A (en) | DC/DC conversion circuit in solar photovoltaic power generation system | |
| CN204517695U (en) | A kind of inverter | |
| CN108964450A (en) | A kind of DC power supply accesses compound circuit and its application of AC power source | |
| CN102306933A (en) | Short-circuit current limiter with high reliability and method thereof | |
| CN107742974B (en) | Discharging device and energy storage device discharging system | |
| CN103326650A (en) | Self-shunt excitation system of electric generator | |
| CN205911966U (en) | Inductor type Z source dc -to -ac converter of taking a percentage | |
| CN201946990U (en) | Schedulable three-phase photovoltaic grid-connected inverter based on inductor-capacitor-inductor (LCL) filter | |
| CN203859551U (en) | Z-source energy-storage AC controller | |
| CN205051415U (en) | Lithium battery charging circuit | |
| CN202084952U (en) | On-grid power converter device of switched reluctance generator | |
| CN203251084U (en) | Bi-directional current limiter based on bi-directional BUCK converter | |
| CN202094810U (en) | Current source power supply circuit for weak current system | |
| Liu et al. | A new fuel cell power conditioning system with extended life time and minimized DC-bus capacitor | |
| CN206389283U (en) | A kind of power circuit of simple low-power high voltage output | |
| CN204732947U (en) | A kind of charging control circuit for mobile phone | |
| CN104658747A (en) | Saturation resistor with simple structure | |
| CN203522280U (en) | Mobile phone charger with utilization of solar energy | |
| CN217590611U (en) | Low-voltage large-current direct-current power supply conversion circuit | |
| CN202749887U (en) | Charging circuit structure | |
| CN108233750A (en) | A kind of single-phase electricity die mould Z-source inverter |
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 |
Granted publication date: 20150729 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |