CN202475297U - An off-grid sine wave inverter - Google Patents
An off-grid sine wave inverter Download PDFInfo
- Publication number
- CN202475297U CN202475297U CN2012200441034U CN201220044103U CN202475297U CN 202475297 U CN202475297 U CN 202475297U CN 2012200441034 U CN2012200441034 U CN 2012200441034U CN 201220044103 U CN201220044103 U CN 201220044103U CN 202475297 U CN202475297 U CN 202475297U
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- mosfet
- mosfet pipe
- utmost point
- pole
- inductance
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Abstract
The utility model provides an off-grid sine wave inverter, wherein the D pole of a first MOSFET is connected with the D pole of a third MOSFET, the S pole of the third MOSFET is connected with the D pole of a fourth MOSFET, the S pole of the fourth MOSFET is connected with the S pole of a second MOSFET, and the D pole of the second MOSFET is connected with the S pole of the first MOSFET. One end of a first inductor is connected between the S pole of the third MOSFET and the D pole of the fourth MOSFET while the other end of the first inductor is connected with one end of a capacitor and a first AC output end. One end of a second inductor is connected between the D pole of the second MOSFET and the S pole of the first MOSFET, and the second inductor is also connected with a second AC output end. The off-grid sine wave inverter is capable of providing pure sine wave power output, which is the same as commercial power, to load equipment in order to prevent loud operation noise of the load equipment and enable stable operation of the same.
Description
Technical field
The utility model relates to the electric equipment technical field, and is particularly a kind of from the net sinewave inverter.
Background technology
The photovoltaic generating system that prior art provides all is the correction ripple inverter that adopts performance to be on duty mutually, this type inverter band inductive load, and like fan, air-conditioning, equipment such as refrigerator can cause operating noise big, the drawback that the machine temperature rise is high.
The utility model content
It is a kind of from the net sinewave inverter that the utility model provides, big with the operating noise that prevents load equipment, makes the load equipment working stability.
To achieve these goals, the utility model provides following technical scheme:
A kind of from the net sinewave inverter; It comprises: MOSFET pipe (metal-oxide FET), the 2nd MOSFET pipe, the 3rd MOSFET pipe, the 4th MOSFET pipe, first inductance, second inductance and electric capacity; The D utmost point of said MOSFET pipe connects the D utmost point of said the 3rd MOSFET pipe; The S utmost point of said the 3rd MOSFET pipe connects the D utmost point of said the 4th MOSFET pipe; The S utmost point of said the 4th MOSFET pipe connects the S utmost point of the 2nd MOSFET pipe; The D utmost point of said the 2nd MOSFET pipe connects the S utmost point of MOSFET pipe; Between the S utmost point that one end of said first inductance is connected said the 3rd MOSFET pipe and the D utmost point of said the 4th MOSFET pipe, the other end of said first inductance connects an end of said electric capacity and connects the first alternating current output, between the D utmost point that an end of said second inductance is connected said the 2nd MOSFET pipe and the S utmost point that a MOSFET manages and be connected the second alternating current output.
Preferably, said MOSFET pipe is power MOSFET tube.
Preferably, said first inductance and second inductance all are 1mH.
Preferably, said electric capacity is 4.7uF/400V.
Through implementing above technical scheme; Have following technique effect: load equipment is exported in can providing with the same pure sine wave power supply of civil power from the net sinewave inverter that the utility model provides; Operating noise to prevent load equipment is big, makes the load equipment working stability.
Description of drawings
The structure principle chart (part) that Fig. 1 provides for the utility model embodiment from the net sinewave inverter.
Embodiment
In order better to understand the technical scheme of the utility model, describe the embodiment that the utility model provides in detail below in conjunction with accompanying drawing.
It is a kind of from the net sinewave inverter that the utility model embodiment provides; As shown in Figure 1; Should comprise from the net sinewave inverter: MOSFET pipe Q1, the 2nd MOSFET pipe Q2, the 3rd MOSFET pipe Q3, the 4th MOSFET pipe Q4, first inductance L 1, second inductance L 2 and capacitor C 1; The D utmost point of said MOSFET pipe Q1 connects the D utmost point of said the 3rd MOSFET pipe Q3; The S utmost point of said the 3rd MOSFET pipe Q3 connects the D utmost point of said the 4th MOSFET pipe Q4; The S utmost point of said the 4th MOSFET pipe Q4 connects the S utmost point of the 2nd MOSFET pipe Q2; The D utmost point of said the 2nd MOSFET pipe Q2 connects the S utmost point of MOSFET pipe Q1; Between the S utmost point that one end of said first inductance L 1 is connected said the 3rd MOSFET pipe Q3 and the D utmost point of said the 4th MOSFET pipe Q4, the other end of said first inductance L 1 connects an end of said capacitor C 1 and connects the first alternating current output terminals A C1, and the D utmost point that an end of said second inductance L 2 is connected said the 2nd MOSFET pipe Q2 and a MOSFET manage between the S utmost point of Q1 and be connected the second alternating current output terminals A C2.Have the 1st, 2 jacks on this first alternating current output terminals A C1 and the second alternating current output terminals A C2, respectively corresponding positive pole and negative pole.First inductance L 1, second inductance L 2 and the capacitor C 1 common LC filter circuit of forming, output pure sine wave voltage; 4 power MOSFET tubes: MOSFET pipe Q1, the 2nd MOSFET pipe Q2, the 3rd MOSFET pipe Q3 and the 4th MOSFET pipe Q4 mutual group become full bridge inverter, realize powerful output.
In the present embodiment, preferably, above-mentioned all MOSFET pipe is power MOSFET tube.
In the present embodiment, preferably, said first inductance and second inductance all are 1mH.
In the present embodiment, preferably, said electric capacity is 4.7uF/400V.
More than to the utility model embodiment provided a kind of from the net sinewave inverter carried out detailed introduction; For one of ordinary skill in the art; Thought according to the utility model embodiment; The part that on embodiment and range of application, all can change, in sum, this description should not be construed as the restriction to the utility model.
Claims (4)
1. one kind is left the net sinewave inverter; It is characterized in that; Comprise: MOSFET pipe, the 2nd MOSFET pipe, the 3rd MOSFET pipe, the 4th MOSFET pipe, first inductance, second inductance and electric capacity; The D utmost point of said MOSFET pipe connects the D utmost point of said the 3rd MOSFET pipe; The S utmost point of said the 3rd MOSFET pipe connects the D utmost point of said the 4th MOSFET pipe; The S utmost point of said the 4th MOSFET pipe connects the S utmost point of the 2nd MOSFET pipe, and the D utmost point of said the 2nd MOSFET pipe connects the S utmost point of MOSFET pipe, between the D utmost point that the S utmost point that an end of said first inductance is connected said the 3rd MOSFET pipe and said the 4th MOSFET manage; The other end of said first inductance connects an end of said electric capacity and connects the first alternating current output, between the D utmost point that an end of said second inductance is connected said the 2nd MOSFET pipe and the S utmost point that a MOSFET manages and be connected the second alternating current output.
2. according to claim 1 from the net sinewave inverter, it is characterized in that said MOSFET pipe is power MOSFET tube.
3. according to claim 1 or claim 2 from the net sinewave inverter, it is characterized in that said first inductance and second inductance all are 1mH.
4. according to claim 1 or claim 2 from the net sinewave inverter, it is characterized in that said electric capacity is 4.7uF/400V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200441034U CN202475297U (en) | 2012-02-10 | 2012-02-10 | An off-grid sine wave inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200441034U CN202475297U (en) | 2012-02-10 | 2012-02-10 | An off-grid sine wave inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202475297U true CN202475297U (en) | 2012-10-03 |
Family
ID=46923419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200441034U Expired - Fee Related CN202475297U (en) | 2012-02-10 | 2012-02-10 | An off-grid sine wave inverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202475297U (en) |
-
2012
- 2012-02-10 CN CN2012200441034U patent/CN202475297U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20140210 |