CN201985775U - Pure sine wave inverter - Google Patents
Pure sine wave inverter Download PDFInfo
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- CN201985775U CN201985775U CN2010206840999U CN201020684099U CN201985775U CN 201985775 U CN201985775 U CN 201985775U CN 2010206840999 U CN2010206840999 U CN 2010206840999U CN 201020684099 U CN201020684099 U CN 201020684099U CN 201985775 U CN201985775 U CN 201985775U
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- sine wave
- pulse width
- pure sine
- width modulation
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Abstract
The utility model relates to a pure sine wave inverter which comprises a power input module, a pulse width modulation module, a transformation, rectifier and filter module, an SPWM (sinusoidal pulse width modulation) drive module, an LC (inductance-capacitance) filter module and a sine wave output module; wherein the pulse width modulation module is connected with the power input module; the transformation, rectifier and filter module is connected with the pulse width modulation module; the SPWM drive module is connected with the transformation, rectifier and filter module; the LC filter module is connected with the SPWM drive module; and the sine wave output module is connected with the LC filter module. As the technical scheme is adopted, the pure sine wave inverter provides a pure sine wave inverter which can avoid signal interference and guarantee the accurate data collected by instruments.
Description
Technical field
The utility model relates to a kind of inverter, particularly a kind of pure sine wave inverter.
Background technology
Inverter is a kind of device that direct current is converted to alternating current; at present; a kind of correction sinewave inverter that uses; connect and compose by low-voltage driving control circuit, pulse width modulation output driving circuit and protection circuit for input and output; but the waveform that the correction sinewave inverter of this structure produces is when using precision instrument; signal disturbs bigger; cause image data inaccurate; especially at some Medical Devices; on the military equipment; than higher, also can produce serious consequence for the requirement of accuracy even a little a bit disturb.
Summary of the invention
The purpose of this utility model: in order to overcome the defective of prior art, the utility model provides a kind of signal of avoiding to disturb, and guarantees instrument image data pure sine wave inverter accurately.
The technical solution of the utility model: a kind of pure sine wave inverter, include Power Entry Module, the pulse width modulation module that is connected with Power Entry Module, the transformation, the rectification filtering module that are connected with described pulse width modulation module, the SPWM driver module that is connected with described transformation, rectification filtering module, the LC filtration module that is connected with described SPWM driver module, the sinewave output module that is connected with described LC filtration module.
In the utility model, described SPWM is exactly the modulating pulse mode that changed on the basis of PWM, the pulse width time duty ratio is pressed the sine gauge rate and is arranged, and output waveform can be accomplished sinewave output through suitable filtering like this, and wherein PWM is exactly pulse width modulation.Described LC filtration module is the filtration module that is combined into by inductance, electric capacity, resistance etc., is used for to harmonic compensation.Adopt technique scheme, can produce pure sine wave, can avoid signal ground to disturb, guarantee the accuracy of instrument image data.
Further improvement of the utility model: described pure sine wave inverter also includes central processing module, the display module that is connected with described central processing module, voltage sample module, current sample module, described voltage sample module is connected with described power module, and described current sample module is connected with described pulse width modulation module.Described central processing module generally adopts single-chip microcomputer, and is simple, cheap.
Adopt above-mentioned further improvement,, through central processing module control display module, demonstrate magnitude of voltage again through the input voltage of voltage sample module collection Power Entry Module; Described display module can also be used to showing power output, and the electric current after current sample module acquisition pulse width modulated calculates power by central processing module again, drives display module and shows power; Whether described central processing module can also be used to detecting in the whole pure sine wave inverter each module operating state normal, and central processing module can drive display module and show miscue when detecting certain module working state abnormal.
Further improvement more of the present utility model: also be provided with an output voltage detection module between described sinewave output module and the described SPWM driver module.
Adopt above-mentioned further improvement again, whether offset of sinusoidal ripple output module carries out Voltage Feedback in real time, detect voltage and satisfy the demand, and regulates the SPWM driver module again and changes pulse, reaches required voltage.
Description of drawings
Fig. 1 is the utility model work principle block diagram.
Embodiment
As shown in Figure 1, a kind of pure sine wave inverter, include Power Entry Module, the pulse width modulation module that is connected with Power Entry Module, the transformation, the rectification filtering module that are connected with described pulse width modulation module, the SPWM driver module that is connected with described transformation, rectification filtering module, the LC filtration module that is connected with described SPWM driver module, the sinewave output module that is connected with described LC filtration module.Adopt above-mentioned technical scheme, this pure sine wave inverter is being used in Medical Devices, in the time of on the military equipment, can not produce the interference of signal, the data that instrument records also can be very accurate.
In the utility model, in order just to find out that voltage, the described pure sine wave inverter of power also include central processing module from directly perceived going up, the display module that is connected with described central processing module, voltage sample module, current sample module, described voltage sample module is connected with described power module, and described current sample module is connected with described pulse width modulation module.Only need as required, can recognize whether the operating state of the numerical value of numerical value, power output of input voltage and whole inverter is normal, can have well whole system to the staff and grasp.
In order to make the last voltage that obtains of pure sine wave inverter to satisfy the demand, in the utility model, also be provided with an output voltage detection module between described sinewave output module and the described SPWM driver module.
Claims (3)
1. pure sine wave inverter, it is characterized in that: include Power Entry Module, the pulse width modulation module that is connected with Power Entry Module, the transformation, the rectification filtering module that are connected with described pulse width modulation module, the SPWM driver module that is connected with described transformation, rectification filtering module, the LC filtration module that is connected with described SPWM driver module, the sinewave output module that is connected with described LC filtration module.
2. pure sine wave inverter according to claim 1, it is characterized in that: described pure sine wave inverter also includes central processing module, the display module that is connected with described central processing module, voltage sample module, current sample module, described voltage sample module is connected with described power module, and described current sample module is connected with described pulse width modulation module.
3. pure sine wave inverter according to claim 1 and 2 is characterized in that: also be provided with an output voltage detection module between described sinewave output module and the described SPWM driver module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206840999U CN201985775U (en) | 2010-12-28 | 2010-12-28 | Pure sine wave inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206840999U CN201985775U (en) | 2010-12-28 | 2010-12-28 | Pure sine wave inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201985775U true CN201985775U (en) | 2011-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010206840999U Expired - Fee Related CN201985775U (en) | 2010-12-28 | 2010-12-28 | Pure sine wave inverter |
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Cited By (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106059371A (en) * | 2016-07-04 | 2016-10-26 | 苏州迈力电器有限公司 | Pure sine wave inverter with pulse width modulation input isolating function |
| CN106059367A (en) * | 2016-07-04 | 2016-10-26 | 苏州迈力电器有限公司 | Pure-sine-wave inverter having current sampling voltage-stabilizing isolation function |
| CN106059369A (en) * | 2016-07-04 | 2016-10-26 | 苏州迈力电器有限公司 | Pure sine wave inverter with high-frequency chopper voltage sampling and isolating function |
| CN106059372A (en) * | 2016-07-04 | 2016-10-26 | 苏州迈力电器有限公司 | Pure sine wave inverter with high-frequency chopper current sampling and isolating function |
| CN106059370A (en) * | 2016-07-04 | 2016-10-26 | 苏州迈力电器有限公司 | Pure sine wave inverter with pulse width modulation, voltage stabilization and isolation functions |
| CN106059366A (en) * | 2016-07-04 | 2016-10-26 | 苏州迈力电器有限公司 | Pure sine wave inverter having pulse-width-modulation current sampling input isolation function |
| CN106059373A (en) * | 2016-07-04 | 2016-10-26 | 苏州迈力电器有限公司 | Pure sine wave inverter with filtering current sampling input isolating function |
| CN106059374A (en) * | 2016-07-04 | 2016-10-26 | 苏州迈力电器有限公司 | Pure sine wave inverter with voltage sampling isolation function |
| CN106059368A (en) * | 2016-07-04 | 2016-10-26 | 苏州迈力电器有限公司 | Pure-sine-wave inverter having filter PWM input isolation function |
| CN106100427A (en) * | 2016-07-04 | 2016-11-09 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with filtering high frequency chopping signal isolation features |
| CN106100417A (en) * | 2016-07-04 | 2016-11-09 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with filtering many current signals isolation features |
| CN106100424A (en) * | 2016-07-04 | 2016-11-09 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with high frequency chopping input isolation features |
| CN106100423A (en) * | 2016-07-04 | 2016-11-09 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with filtered circuit sampling voltage stabilizing isolation features |
| CN106100418A (en) * | 2016-07-04 | 2016-11-09 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with filtering PWM voltage stabilizing isolation features |
| CN106100422A (en) * | 2016-07-04 | 2016-11-09 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with filtering PWM voltage sample isolation features |
| CN106100416A (en) * | 2016-07-04 | 2016-11-09 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with pulsewidth modulation many current signals isolation features |
| CN106100419A (en) * | 2016-07-04 | 2016-11-09 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with high frequency chopping voltage stabilizing isolation features |
| CN106100415A (en) * | 2016-07-04 | 2016-11-09 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with input isolation features |
| CN106100429A (en) * | 2016-07-04 | 2016-11-09 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with current sample isolation features |
| CN106100425A (en) * | 2016-07-04 | 2016-11-09 | 苏州迈力电器有限公司 | There is the pure sine wave inverter of pulse width modulation electrical current sampling voltage stabilizing isolation features |
| CN106100428A (en) * | 2016-07-04 | 2016-11-09 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with filtering voltage sampling isolation features |
| CN106100421A (en) * | 2016-07-04 | 2016-11-09 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with high frequency chopping many current signals isolation features |
| CN106130395A (en) * | 2016-07-04 | 2016-11-16 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with filtering signal isolation features |
| CN106130394A (en) * | 2016-07-04 | 2016-11-16 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with pwm voltage sampling isolation features |
| CN106130397A (en) * | 2016-07-04 | 2016-11-16 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with filtering voltage regulation isolation features |
| CN106130396A (en) * | 2016-07-04 | 2016-11-16 | 苏州迈力电器有限公司 | There is the pure sine wave inverter of high frequency chopping current sample voltage stabilizing isolation features |
| CN106160557A (en) * | 2016-07-04 | 2016-11-23 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with filtered circuit sampling isolation features |
| CN106160554A (en) * | 2016-07-04 | 2016-11-23 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with filtering input isolation features |
| CN106160556A (en) * | 2016-07-04 | 2016-11-23 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with voltage stabilizing isolation features |
| CN106160558A (en) * | 2016-07-04 | 2016-11-23 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with high frequency chopping signal isolation features |
| CN106160553A (en) * | 2016-07-04 | 2016-11-23 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with pulse width modulation electrical current sampling isolation features |
| CN106160555A (en) * | 2016-07-04 | 2016-11-23 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with filtering pwm signal isolation features |
-
2010
- 2010-12-28 CN CN2010206840999U patent/CN201985775U/en not_active Expired - Fee Related
Cited By (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106059371A (en) * | 2016-07-04 | 2016-10-26 | 苏州迈力电器有限公司 | Pure sine wave inverter with pulse width modulation input isolating function |
| CN106059367A (en) * | 2016-07-04 | 2016-10-26 | 苏州迈力电器有限公司 | Pure-sine-wave inverter having current sampling voltage-stabilizing isolation function |
| CN106059369A (en) * | 2016-07-04 | 2016-10-26 | 苏州迈力电器有限公司 | Pure sine wave inverter with high-frequency chopper voltage sampling and isolating function |
| CN106059372A (en) * | 2016-07-04 | 2016-10-26 | 苏州迈力电器有限公司 | Pure sine wave inverter with high-frequency chopper current sampling and isolating function |
| CN106059370A (en) * | 2016-07-04 | 2016-10-26 | 苏州迈力电器有限公司 | Pure sine wave inverter with pulse width modulation, voltage stabilization and isolation functions |
| CN106059366A (en) * | 2016-07-04 | 2016-10-26 | 苏州迈力电器有限公司 | Pure sine wave inverter having pulse-width-modulation current sampling input isolation function |
| CN106059373A (en) * | 2016-07-04 | 2016-10-26 | 苏州迈力电器有限公司 | Pure sine wave inverter with filtering current sampling input isolating function |
| CN106059374A (en) * | 2016-07-04 | 2016-10-26 | 苏州迈力电器有限公司 | Pure sine wave inverter with voltage sampling isolation function |
| CN106059368A (en) * | 2016-07-04 | 2016-10-26 | 苏州迈力电器有限公司 | Pure-sine-wave inverter having filter PWM input isolation function |
| CN106100427A (en) * | 2016-07-04 | 2016-11-09 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with filtering high frequency chopping signal isolation features |
| CN106100417A (en) * | 2016-07-04 | 2016-11-09 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with filtering many current signals isolation features |
| CN106100424A (en) * | 2016-07-04 | 2016-11-09 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with high frequency chopping input isolation features |
| CN106100423A (en) * | 2016-07-04 | 2016-11-09 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with filtered circuit sampling voltage stabilizing isolation features |
| CN106100418A (en) * | 2016-07-04 | 2016-11-09 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with filtering PWM voltage stabilizing isolation features |
| CN106100422A (en) * | 2016-07-04 | 2016-11-09 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with filtering PWM voltage sample isolation features |
| CN106100416A (en) * | 2016-07-04 | 2016-11-09 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with pulsewidth modulation many current signals isolation features |
| CN106100419A (en) * | 2016-07-04 | 2016-11-09 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with high frequency chopping voltage stabilizing isolation features |
| CN106100415A (en) * | 2016-07-04 | 2016-11-09 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with input isolation features |
| CN106100429A (en) * | 2016-07-04 | 2016-11-09 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with current sample isolation features |
| CN106100425A (en) * | 2016-07-04 | 2016-11-09 | 苏州迈力电器有限公司 | There is the pure sine wave inverter of pulse width modulation electrical current sampling voltage stabilizing isolation features |
| CN106100428A (en) * | 2016-07-04 | 2016-11-09 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with filtering voltage sampling isolation features |
| CN106100421A (en) * | 2016-07-04 | 2016-11-09 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with high frequency chopping many current signals isolation features |
| CN106130395A (en) * | 2016-07-04 | 2016-11-16 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with filtering signal isolation features |
| CN106130394A (en) * | 2016-07-04 | 2016-11-16 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with pwm voltage sampling isolation features |
| CN106130397A (en) * | 2016-07-04 | 2016-11-16 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with filtering voltage regulation isolation features |
| CN106130396A (en) * | 2016-07-04 | 2016-11-16 | 苏州迈力电器有限公司 | There is the pure sine wave inverter of high frequency chopping current sample voltage stabilizing isolation features |
| CN106160557A (en) * | 2016-07-04 | 2016-11-23 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with filtered circuit sampling isolation features |
| CN106160554A (en) * | 2016-07-04 | 2016-11-23 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with filtering input isolation features |
| CN106160556A (en) * | 2016-07-04 | 2016-11-23 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with voltage stabilizing isolation features |
| CN106160558A (en) * | 2016-07-04 | 2016-11-23 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with high frequency chopping signal isolation features |
| CN106160553A (en) * | 2016-07-04 | 2016-11-23 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with pulse width modulation electrical current sampling isolation features |
| CN106160555A (en) * | 2016-07-04 | 2016-11-23 | 苏州迈力电器有限公司 | A kind of pure sine wave inverter with filtering pwm signal isolation features |
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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: 20110921 Termination date: 20141228 |
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| EXPY | Termination of patent right or utility model |