CN209948991U - Output regulation inverter - Google Patents
Output regulation inverter Download PDFInfo
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- CN209948991U CN209948991U CN201920577083.9U CN201920577083U CN209948991U CN 209948991 U CN209948991 U CN 209948991U CN 201920577083 U CN201920577083 U CN 201920577083U CN 209948991 U CN209948991 U CN 209948991U
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Abstract
The utility model discloses an output adjustment inverter, include: the boosting module boosts and outputs the direct-current power supply; the conversion module is used for converting the high-voltage direct current output by the boosting module into alternating current; the control module performs feedback control according to the output of the boosting module and the conversion module; the conversion module is provided with a filtering adjustment unit for adjusting the output of the conversion module. The scheme mainly realizes the influence on the output through the filtering adjustment unit, and because danger is easily caused by directly changing the parameters of components and parts in a boosting or inverting part, the final output position is changed, the problems are effectively solved, and active abnormal output is realized. The utility model has the advantages that: during normal output, it is effectual to step up and conversion, and the operation is stable, when needing abnormal output, and the adjustment is convenient, and the security is high.
Description
Technical Field
The utility model relates to an inverter, in particular to output regulation inverter.
Background
An inverter is a device that converts direct current electrical energy (batteries, storage cells) into alternating current. It is composed of inverter bridge, control logic and filter circuit. The multifunctional electric grinding wheel is widely applied to the fields of air conditioners, home theaters, electric grinding wheels, electric tools, sewing machines, DVDs (digital video disks), VCDs (video recorders), computers, televisions, washing machines, range hoods, refrigerators, video recorders, massagers, fans, lighting and the like. In foreign countries, due to the high popularization rate of automobiles, the inverter can be connected with the storage battery to drive electric appliances and various tools to work when people go out for work or travel.
However, in the teaching process, if a general inverter is directly used, the students cannot deepen the understanding of the working condition of the inverter, so that an inverter capable of switching between normal output and abnormal output is needed.
The invention of the grant publication No. CN106357194B provides an inverter control device for a system constituted by an inverter and a motor. A system including an inverter and a motor includes the inverter, the motor, an input voltage detection device, an output detection device, a temperature detection device, and an inverter control device. The user can freely set the protection parameters of the inverter, and the inverter can be prevented from being frequently cut off in a severe state.
The prior art cannot meet the requirement of adjusting output parameters.
SUMMERY OF THE UTILITY MODEL
The problem to prior art can't realize controlled abnormal output, the utility model provides an output regulation dc-to-ac converter can realize outside the normal output function of general dc-to-ac converter, can also initiatively adjust to abnormal output, does benefit to the influence of specific module to the dc-to-ac converter of performance.
The technical scheme of the utility model is as follows.
An output regulated inverter comprising: the boosting module boosts and outputs the direct-current power supply; the conversion module is used for converting the high-voltage direct current output by the boosting module into alternating current; the control module performs feedback control according to the output of the boosting module and the conversion module; the conversion module is provided with a filtering adjustment unit for adjusting the output of the conversion module. The scheme mainly realizes the influence on the output through the filtering adjustment unit, and because danger is easily caused by directly changing the parameters of components and parts in a boosting or inverting part, the final output position is changed, the problems are effectively solved, and active abnormal output is realized.
Preferably, the boost module comprises a conversion circuit group and a bridge rectifier circuit, the conversion circuit group is composed of a plurality of push-pull conversion circuits, the input ends of the push-pull conversion circuits in the conversion circuit group are connected with a direct current power supply, the output ends of adjacent push-pull conversion circuits are connected in series to serve as the output end of the conversion circuit group, the output end of the conversion circuit group is connected with the conversion module through the bridge rectifier circuit, and the control end of each push-pull conversion circuit is connected with the control module. The push-pull conversion circuit is mature in technology and good in boosting effect.
Preferably, the conversion module comprises a full-bridge inverter circuit, the output end of the full-bridge inverter circuit is connected with the filtering adjustment unit, and the control end of the full-bridge inverter circuit is connected with the control module. The full-bridge inverter circuit is mature in technology and good in conversion effect.
Preferably, the control module comprises a PWM controller and a sine wave inversion generator, the PWM controller is connected to the output end and the control end of the boost module, and the sine wave inversion generator is connected to the output end and the control end of the conversion module. The PWM controller selects a chip EG3525 to complete protection, regulation and driving tasks, the sine wave inverter generator selects EG8010 to control the full-bridge inverter circuit to complete conversion from direct current high voltage electricity to alternating current electricity, and meanwhile, the system is prevented from being over-voltage, over-current and over-temperature.
Preferably, the conversion circuit group and the bridge rectifier circuit comprise a plurality of MOS (metal oxide semiconductor) tubes, a transformer, a rectifier diode and a filter circuit, wherein the source electrode of the MOS tube Q1 and the drain electrode of the MOS tube Q2 are connected with the negative electrode of a power supply, the drain electrode of the MOS tube Q1 is connected with the first end of a primary coil of the transformer T1, the source electrode of the MOS tube Q2 is connected with the second end of the primary coil of the transformer T1, and the midpoint of the primary coil of the transformer T1 is connected with the positive electrode of the; the connection modes of the MOS transistor Q3, the MOS transistor Q4 and the transformer T2 are the same as the connection modes; the connection modes of the MOS transistor Q5, the MOS transistor Q6 and the transformer T3 are the same as the connection modes; the first end of the secondary coil of the transformer T2 is connected with the second end of the secondary coil of the transformer T1, the second end of the secondary coil of the transformer T2 is connected with the first end of the secondary coil of the transformer T3, the first end of the secondary coil of the transformer T1 is connected with the anode of the rectifier diode D1 and the cathode of the rectifier diode D2, the second end of the secondary coil of the transformer T3 is connected with the anode of the rectifier diode D3 and the cathode of the rectifier diode D4, the cathodes of the rectifier diodes D1 and D3 are connected with one end of an inductor L, the other end of the inductor L is connected with the anode of an output end, the anodes of the rectifier diodes D2 and D4 are connected with the cathode of
Preferably, the full-bridge inverter circuit includes a plurality of MOS transistors, drains of the MOS transistors Q7 and Q9 are connected to the positive output terminal of the boost module, sources of the MOS transistors Q8 and Q10 are connected to the negative output terminal of the boost module, a source of the MOS transistor Q7 and a drain of the MOS transistor Q8 are used as the first output terminal, and a source of the MOS transistor Q9 and a drain of the MOS transistor Q10 are used as the second output terminal.
Preferably, the filtering adjustment unit includes an inductance selector and a capacitance selector, one end of the inductance selector is connected to the second output end of the full-bridge inverter circuit, the other end of the inductance selector is connected to one end of the capacitance selector, and the other end of the capacitance selector is connected to the first output end of the full-bridge inverter circuit. The filter circuit is arranged according to the arrangement of the filter circuit, and can play a role in filtering or adjusting.
Preferably, the inductance selector comprises a selection switch S1 and an inductance installation part, one end of the selection switch S1 is connected to the second output end of the full-bridge inverter circuit, the other end of the selection switch S1 is connected to one end of the inductance installation part, and the other end of the inductance installation part is connected to the capacitance selector. When the selection switch S1 is dialed to a designated inductor, the inductor operates.
Preferably, the capacitor selector comprises a selection switch S2 and a capacitor mounting part, one end of the selection switch S2 is connected to the first output end of the full-bridge inverter circuit, the other end of the selection switch S2 is connected to one end of the capacitor mounting part, and the other end of the capacitor mounting part is connected to the inductor selector. The working principle is the same as that of an inductance selector.
The utility model has the advantages that: during normal output, it is effectual to step up and conversion, and the operation is stable, when needing abnormal output, and the adjustment is convenient, and the security is high.
Drawings
Fig. 1 is a schematic block diagram of an embodiment of the present invention;
fig. 2 is a circuit diagram of a boost module according to an embodiment of the present invention;
fig. 3 is a circuit diagram of a conversion module according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an inductance selector according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a capacitance selector according to an embodiment of the present invention;
in the figure: the circuit comprises a 1-boost module, a 2-conversion module, a 100-inductance selector and a 200-capacitance selector.
Detailed Description
The technical scheme is further explained by combining the drawings in the specification.
Example (b):
as shown in fig. 1, an output regulated inverter includes: the boosting module 1 boosts and outputs the direct-current power supply; the conversion module 2 is used for converting the high-voltage direct current output by the boosting module 1 into alternating current, and the conversion module 2 is provided with a filtering adjustment unit used for adjusting the output of the conversion module; and the control module performs feedback control according to the output of the boosting module and the conversion module, and comprises a PWM (pulse width modulation) controller and a sine wave inversion generator, wherein the PWM controller is connected with the output end and the control end of the boosting module, and the sine wave inversion generator is connected with the output end and the control end of the conversion module. The PWM controller selects a chip EG3525 to complete protection, regulation and driving tasks, the sine wave inverter generator selects EG8010 to control the full-bridge inverter circuit to complete conversion from direct current high voltage electricity to alternating current electricity, and meanwhile, the system is prevented from being over-voltage, over-current and over-temperature.
The scheme mainly realizes the influence on the output through the filtering adjustment unit, and because danger is easily caused by directly changing the parameters of components and parts in a boosting or inverting part, the final output position is changed, the problems are effectively solved, and active abnormal output is realized.
The boosting module shown in fig. 2 comprises a plurality of MOS transistors, a transformer, a rectifier diode and a filter circuit, wherein the source of the MOS transistor Q1 and the drain of the MOS transistor Q2 are connected to the negative electrode of the power supply, the drain of the MOS transistor Q1 is connected to the first end of the primary coil of the transformer T1, the source of the MOS transistor Q2 is connected to the second end of the primary coil of the transformer T1, and the midpoint of the primary coil of the transformer T1 is connected to the positive electrode of the power supply; the connection modes of the MOS transistor Q3, the MOS transistor Q4 and the transformer T2 are the same as the connection modes; the connection modes of the MOS transistor Q5, the MOS transistor Q6 and the transformer T3 are the same as the connection modes; the first end of the secondary coil of the transformer T2 is connected with the second end of the secondary coil of the transformer T1, the second end of the secondary coil of the transformer T2 is connected with the first end of the secondary coil of the transformer T3, the first end of the secondary coil of the transformer T1 is connected with the anode of the rectifier diode D1 and the cathode of the rectifier diode D2, the second end of the secondary coil of the transformer T3 is connected with the anode of the rectifier diode D3 and the cathode of the rectifier diode D4, the cathodes of the rectifier diodes D1 and D3 are connected with one end of an inductor L, the other end of the inductor L is connected with the anode of an output end, and the anodes of the rectifier diodes D2 and D4 are connected with the cathode of. The push-pull conversion circuit is mature in technology and good in boosting effect.
The full-bridge inverter circuit of the conversion module shown in fig. 3 includes a plurality of MOS transistors, the drains of the MOS transistors Q7 and Q9 are connected to the positive output terminal of the boost module, the sources of the MOS transistors Q8 and Q10 are connected to the negative output terminal of the boost module, the source of the MOS transistor Q7 and the drain of the MOS transistor Q8 are used as the first output terminal, and the source of the MOS transistor Q9 and the drain of the MOS transistor Q10 are used as the second output terminal. The full-bridge inverter circuit is mature in technology and good in conversion effect.
The filtering adjustment unit in fig. 3 includes an inductance selector 100 and a capacitance selector 200, wherein one end of the inductance selector 100 is connected to the second output end of the full-bridge inverter circuit, the other end of the inductance selector 100 is connected to one end of the capacitance selector 200, and the other end of the capacitance selector 200 is connected to the first output end of the full-bridge inverter circuit. The filter circuit is arranged according to the arrangement of the filter circuit, and can play a role in filtering or adjusting.
As shown in fig. 4, the inductance selector 100 includes a selection switch S1 and an inductance installation part, and this embodiment can realize the alternative of two inductances, one end of the selection switch S1 is connected to the second output terminal of the full-bridge inverter circuit, the other end of the selection switch S1 is connected to one end of the inductance installation part, and the other end of the inductance installation part is connected to the capacitance selector. When the selection switch S1 is dialed to a designated inductor, the inductor operates.
As shown in fig. 5, the capacitor selector 200 includes a selection switch S2 and a capacitor mounting portion, and this embodiment can realize the alternative capacitor, wherein one end of the selection switch S2 is connected to the first output end of the full-bridge inverter circuit, the other end of the selection switch S2 is connected to one end of the capacitor mounting portion, and the other end of the capacitor mounting portion is connected to the inductor selector. The working principle is the same as that of an inductance selector.
It should be noted that the specific embodiment is only used for further illustration of the technical solution, and is not used for limiting the scope of the technical solution, and any modification, equivalent replacement, improvement and the like based on the technical solution should be considered as being within the protection scope of the present invention.
Claims (9)
1. An output regulated inverter, comprising:
the boosting module boosts and outputs the direct-current power supply;
the conversion module is used for converting the high-voltage direct current output by the boosting module into alternating current;
the control module performs feedback control according to the output of the boosting module and the conversion module;
the conversion module is provided with a filtering adjustment unit for adjusting the output of the conversion module.
2. The output-regulated inverter according to claim 1, wherein the boost module comprises a conversion circuit group consisting of a plurality of push-pull conversion circuits and a bridge rectifier circuit, wherein input ends of the push-pull conversion circuits in the conversion circuit group are connected with a direct-current power supply, output ends of adjacent push-pull conversion circuits are connected in series to serve as output ends of the conversion circuit group, output ends of the conversion circuit group are connected with the conversion module through the bridge rectifier circuit, and control ends of the push-pull conversion circuits are connected with the control module.
3. The output regulator inverter according to claim 1, wherein the converting module comprises a full bridge inverter circuit, an output terminal of the full bridge inverter circuit is connected to the filtering and adjusting unit, and a control terminal of the full bridge inverter circuit is connected to the control module.
4. An output regulated inverter according to claim 1, 2 or 3 wherein the control module comprises a PWM controller and a sine wave inversion generator, the PWM controller is connected to the boost module output and control terminal, and the sine wave inversion generator is connected to the conversion module output and control terminal.
5. The inverter as claimed in claim 2, wherein the inverter circuit set and the bridge rectifier circuit comprise a plurality of MOS transistors, a transformer, a rectifier diode and a filter circuit, the source of the MOS transistor Q1 and the drain of the MOS transistor Q2 are connected to the negative terminal of the power supply, the drain of the MOS transistor Q1 is connected to the first terminal of the primary winding of the transformer T1, the source of the MOS transistor Q2 is connected to the second terminal of the primary winding of the transformer T1, and the midpoint of the primary winding of the transformer T1 is connected to the positive terminal of the power supply; the connection modes of the MOS transistor Q3, the MOS transistor Q4 and the transformer T2 are the same as the connection modes; the connection modes of the MOS transistor Q5, the MOS transistor Q6 and the transformer T3 are the same as the connection modes; the first end of the secondary coil of the transformer T2 is connected with the second end of the secondary coil of the transformer T1, the second end of the secondary coil of the transformer T2 is connected with the first end of the secondary coil of the transformer T3, the first end of the secondary coil of the transformer T1 is connected with the anode of the rectifier diode D1 and the cathode of the rectifier diode D2, the second end of the secondary coil of the transformer T3 is connected with the anode of the rectifier diode D3 and the cathode of the rectifier diode D4, the cathodes of the rectifier diodes D1 and D3 are connected with one end of an inductor L, the other end of the inductor L is connected with the anode of an output end, and the anodes of the rectifier diodes D2 and D4 are connected with the cathode of.
6. The output regulator inverter of claim 3, wherein the full bridge inverter circuit comprises a plurality of MOS transistors, the drains of the MOS transistors Q7 and Q9 are connected to the positive output terminal of the boost module, the sources of the MOS transistors Q8 and Q10 are connected to the negative output terminal of the boost module, the source of the MOS transistor Q7 and the drain of the MOS transistor Q8 are used as the first output terminal, and the source of the MOS transistor Q9 and the drain of the MOS transistor Q10 are used as the second output terminal.
7. The output regulator inverter of claim 6, wherein the filter adjusting unit comprises an inductance selector and a capacitance selector, one end of the inductance selector is connected to the second output terminal of the full-bridge inverter circuit, the other end of the inductance selector is connected to one end of the capacitance selector, and the other end of the capacitance selector is connected to the first output terminal of the full-bridge inverter circuit.
8. The output regulator inverter as claimed in claim 7, wherein the inductor selector comprises a selection switch S1 and an inductor mounting portion, one end of the selection switch S1 is connected to the second output terminal of the full bridge inverter circuit, the other end of the selection switch S1 is connected to one end of the inductor mounting portion, and the other end of the inductor mounting portion is connected to the capacitor selector.
9. The output regulator inverter of claim 7, wherein the capacitor selector comprises a selection switch S2 and a capacitor mounting portion, one end of the selection switch S2 is connected to the first output terminal of the full bridge inverter circuit, the other end of the selection switch S2 is connected to one end of the capacitor mounting portion, and the other end of the capacitor mounting portion is connected to the inductor selector.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920577083.9U CN209948991U (en) | 2019-04-25 | 2019-04-25 | Output regulation inverter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920577083.9U CN209948991U (en) | 2019-04-25 | 2019-04-25 | Output regulation inverter |
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| CN209948991U true CN209948991U (en) | 2020-01-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110176870A (en) * | 2019-04-25 | 2019-08-27 | 绍兴文理学院元培学院 | A kind of output adjusting inverter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110176870A (en) * | 2019-04-25 | 2019-08-27 | 绍兴文理学院元培学院 | A kind of output adjusting inverter |
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