CN202856631U - Voltage-adjustable frequency-adjustable inverter power supply - Google Patents
Voltage-adjustable frequency-adjustable inverter power supply Download PDFInfo
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- CN202856631U CN202856631U CN 201220609537 CN201220609537U CN202856631U CN 202856631 U CN202856631 U CN 202856631U CN 201220609537 CN201220609537 CN 201220609537 CN 201220609537 U CN201220609537 U CN 201220609537U CN 202856631 U CN202856631 U CN 202856631U
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- inverter
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Abstract
The utility model discloses a voltage-adjustable frequency-adjustable inverter power supply, mainly to provide an inverter power supply which is low in loss and high in efficiency. The voltage-adjustable frequency-adjustable inverter power supply is characterized in that the power supply further comprises a control circuit made up of a voltage-adjustable single chip microcomputer control module and a frequency-adjustable single chip microcomputer control module; switch elements in the main circuit all adopt field-effect tubes; high and low levels outputted by the voltage-adjustable single chip microcomputer control module serve as pulse-width modulation signals of an industrial frequency transformer and a high-frequency chopper unit, so as to realize the control on the switching on and switching off of the MOS tubes; and the frequency-adjustable single chip microcomputer control module also outputs high and low levels to serve as pulse-width modulation signals of a full-bridge inverter circuit, so as to realize the control on the switching on and switching off of IPP26CN10N-type high-power switch tubes, and the initial value setting terminal of a timer on the single chip microcomputer of the module serves as the input end of frequency modulation signals. Compared with the traditional industrial frequency transformer, the inverter power supply disclosed by the utility model is small in volume and light in weight; and by adopting the inverter power supply disclosed by the utility model, the efficiency of the power supply system is improved, and the loss of the system is greatly reduced.
Description
Technical field
The utility model relates to a kind of power supply that is applied in the industrial power supply field.
Background technology
Current, power electronics is as the basis of energy-conservation, material-saving, automation, intellectuality, electromechanical integration, just towards the future development of application technology high frequency, hardware configuration modularization, properties of product greenization.At present in many occasions that need high frequency voltage, wireless power transmission for example, experiment is with high frequency electric source etc., under these occasions, requirement to inverter is more and more higher, traditional power frequency inverter power supply is owing to exist the problems such as volume is large, loss is many, efficient is low to limit to a certain extent the raising of electric power system efficient, and system loss is remained high.
Summary of the invention
In order to solve the technical problem of mentioning in the background technology, the utility model provides a kind of pressure-adjustable frequency modulation inverter, this kind power supply is compared with traditional power frequency inverter power supply, volume is little, lightweight, and adopts this kind inverter power supply can improve electric power system efficient, greatly reduce system loss.
The technical solution of the utility model is:
This kind pressure-adjustable frequency modulation inverter, the main circuit that comprises Industrial Frequency Transformer and full-bridge rectification unit, high frequency chopping unit, high frequency transformer, filtering high-frequency rectifier unit and full bridge inverter cell formation, its unique distinction is: described inverter also comprises a control circuit that is made of pressure regulation single chip control module and frequency modulation single chip control module, and described pressure regulation single chip control module and frequency modulation single chip control module all adopt the AT89C51 single-chip microcomputer; Switch element in the described main circuit all adopts field effect transistor, wherein, it is the metal-oxide-semiconductor of IRF640 that field effect transistor in described Industrial Frequency Transformer and the high frequency chopping unit adopts model, and the field effect transistor in the described full bridge inverter unit adopts IPP26CN10N type high-power switch tube;
The high-low level of the P2.0 port of single-chip microcomputer output is as the pulse-width signal of Industrial Frequency Transformer and high frequency chopping unit in the described pressure regulation single chip control module, the P2.0 port of this single-chip microcomputer is connected to the control signal input that voltage is adjusted drive circuit, the driving signal output part of described voltage adjustment drive circuit is connected to the control end of described metal-oxide-semiconductor, to realize turning on and off of the described metal-oxide-semiconductor of control;
Single-chip microcomputer also passes through the high-low level of the P2.0 port output on it as the pulse-width signal of full bridge inverter in the described frequency modulation single chip control module, the P2.0 port of this single-chip microcomputer is connected to the control signal input that inverter is adjusted drive circuit, the driving signal output part of described inverter adjustment drive circuit is connected to the control end of described IPP26CN10N type high-power switch tube, to realize turning on and off of the described IPP26CN10N type high-power switch tube of control, the timer initial value in the described frequency modulation single chip control module on the single-chip microcomputer is set end as the input of frequency adjusted signal.
The utlity model has following beneficial effect: this kind inverter utilizes intelligent control chip to produce the required pwm signal of high-frequency inversion as core control part, drive the break-make control that power electronic device realizes electric energy through isolated drive circuit, circuits for triggering, and then realize AC energy output.Owing to adopt intelligent control chip, pwm signal voltage and frequency can change by programming, thereby realize voltage and the frequency adjustment of output AC electricity.Compare with traditional power frequency inverter, high-frequency inverter has that volume is little, lightweight, loss is little, the efficient advantages of higher, adopting high frequency pressure regulation inverter is the important means that improves electric power system efficient, reduces system loss, especially for the power consumption equipment strict to efficiency, this kind inverter can be guaranteed the up to standard of efficiency.
Description of drawings:
Fig. 1 is that system of the present utility model consists of block diagram.
Fig. 2 is the related voltage-regulating circuit schematic diagram of the utility model.
Fig. 3 is that the related inverter circuit of the utility model is adjusted schematic diagram.
Fig. 4 is the electrical schematic diagram of pressure regulation single chip control module described in the utility model.
Fig. 5 is the electrical schematic diagram that voltage described in the utility model is adjusted drive circuit.
Fig. 6 is the electrical schematic diagram of frequency modulation single chip control module described in the utility model.
Fig. 7 and Fig. 8 make up the complete electrical schematic diagram that rear formation inverter described in the utility model is adjusted drive circuit.
Embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, this kind pressure-adjustable frequency modulation inverter, comprise Industrial Frequency Transformer and full-bridge rectification unit, the high frequency chopping unit, high frequency transformer, the main circuit of filtering high-frequency rectifier unit and full bridge inverter cell formation, its unique distinction is: described inverter also comprises a control circuit that is made of pressure regulation single chip control module and frequency modulation single chip control module, the electrical schematic diagram of pressure regulation single chip control module and frequency modulation single chip control module is distinguished as shown in Figure 4 and Figure 5, and described pressure regulation single chip control module and frequency modulation single chip control module all adopt the AT89C51 single-chip microcomputer; Switch element in the described main circuit all adopts field effect transistor, wherein, it is the metal-oxide-semiconductor of IRF640 that field effect transistor in described Industrial Frequency Transformer and the high frequency chopping unit adopts model, and the field effect transistor in the described full bridge inverter unit adopts IPP26CN10N type high-power switch tube.
The related voltage-regulating circuit schematic diagram of the utility model as shown in Figure 2, under the control of single-chip microcomputer, metal-oxide-semiconductor is controlled, process according to the pwm signal of setting, the drive circuit of metal-oxide-semiconductor is simple under this design, and circuit reliability is high, and conducting voltage is almost 0 during the opening of metal-oxide-semiconductor, the blocking interval electric current is near 0, it is very little that thereby the loss that makes circuit is fallen, as long as add suitable commutation capacitor in DC side voltage steadily exported, and can guarantee the stable of output voltage.Among the figure, former limit transformer is high frequency transformer, magnetic core adopts ferrite EER42 magnetic core, according to the parameter that inquires, peakflux density 5960 Gausses of EER42 magnetic core, design high frequency transformer turn ratio is 1:1, can bear 200V voltage, needs to satisfy the voltage of the 43.2V that designs, and leave larger allowance, prevent that power supply from breaking down, burn out high frequency transformer, when metal-oxide-semiconductor is opened, the former limit of high frequency transformer store electrical energy, discharge electric energy by secondary during shutoff, by the regulation voltage that how much comes of regulation output electric energy, i.e. the regulation output voltage recently of duty by pwm signal, through capacitor filtering, select when suitable when voltage and appearance value, the direct voltage of stable output is for inverter.The adjusting of the duty ratio here outputs to single-chip microcomputer by button, by the different pwm signal of Single-chip Controlling output, through drive circuit, controls turning on and off of metal-oxide-semiconductor.Switching device is according to input voltage 43.2V, switching frequency 100kHz, and selecting the metal-oxide-semiconductor model is IRF640.
The high-low level of the P2.0 port of single-chip microcomputer output is as the pulse-width signal of Industrial Frequency Transformer and high frequency chopping unit in the described pressure regulation single chip control module, the P2.0 port of this single-chip microcomputer is connected to the control signal input that voltage is adjusted drive circuit, the driving signal output part of described voltage adjustment drive circuit is connected to the control end of described metal-oxide-semiconductor, to realize turning on and off of the described metal-oxide-semiconductor of control.The electrical schematic diagram that voltage is adjusted drive circuit as shown in Figure 5, the circuit of pressure regulation single chip control module as shown in Figure 4, the pressure regulation single chip control module mainly realize scanning show control, by functions such as key control, warnings.Mainly control the turn-on and turn-off of tap changer pipe by the high-low level of P2.0 port output, the duty that the initial value by the key change timer comes the regulation output pwm signal is regulation voltage recently.
Fig. 3 is that the related inverter circuit of the utility model is adjusted schematic diagram, adopts the full-bridge inverting structure, and during specific implementation, requiring the output voltage limit frequency is 15kHz, and the upper voltage limit value is 36V, and rated power is 20W.Select as required IPP26CN10N as switch element, its rated operational voltage is 100V, and electric current is 35A, and the time of turning on and off is respectively 14ns and 16ns.
Fig. 6 is the electrical schematic diagram of frequency modulation single chip control module, and Fig. 7 and Fig. 8 make up the complete electrical schematic diagram that rear formation inverter described in the utility model is adjusted drive circuit.As shown in the figure, single-chip microcomputer also passes through the high-low level of the P2.0 port output on it as the pulse-width signal of full bridge inverter in the frequency modulation single chip control module, the P2.0 port of this single-chip microcomputer is connected to the control signal input that inverter is adjusted drive circuit, the driving signal output part of described inverter adjustment drive circuit is connected to the control end of described IPP26CN10N type high-power switch tube, to realize turning on and off of the described IPP26CN10N type high-power switch tube of control, the timer initial value in the described frequency modulation single chip control module on the single-chip microcomputer is set end as the input of frequency adjusted signal.
This kind of inverter adopts Single-chip Controlling with the control model of button operation, and to the single-chip microcomputer input command, single-chip microcomputer calculates by button, then the pwm signal of single-chip microcomputer output relevant voltage and frequency.Pressure regulation demand according to input, regulate the duty ratio of modulating wave, realize interior adjusting of scope of output voltage 5-36V, output frequency 1kHz-15kHz, duty ratio by the modulation chopper circuit, change the output dc voltage of chopper circuit, namely change the voltage of inverter circuit DC side, thereby the amplitude that realizes ac output voltage is regulated, and guaranteeing that output voltage all is the square wave of standard under any amplitude, wave distortion is little.
Claims (1)
1. pressure-adjustable frequency modulation inverter, the main circuit that comprises Industrial Frequency Transformer and full-bridge rectification unit, high frequency chopping unit, high frequency transformer, filtering high-frequency rectifier unit and full bridge inverter cell formation, it is characterized in that: described inverter also comprises a control circuit that is made of pressure regulation single chip control module and frequency modulation single chip control module, and described pressure regulation single chip control module and frequency modulation single chip control module all adopt the AT89C51 single-chip microcomputer; Switch element in the described main circuit all adopts field effect transistor, wherein, it is the metal-oxide-semiconductor of IRF640 that field effect transistor in described Industrial Frequency Transformer and the high frequency chopping unit adopts model, and the field effect transistor in the described full bridge inverter unit adopts IPP26CN10N type high-power switch tube;
The high-low level of the P2.0 port of single-chip microcomputer output is as the pulse-width signal of Industrial Frequency Transformer and high frequency chopping unit in the described pressure regulation single chip control module, the P2.0 port of this single-chip microcomputer is connected to the control signal input that voltage is adjusted drive circuit, the driving signal output part of described voltage adjustment drive circuit is connected to the control end of described metal-oxide-semiconductor, to realize turning on and off of the described metal-oxide-semiconductor of control;
Single-chip microcomputer also passes through the high-low level of the P2.0 port output on it as the pulse-width signal of full bridge inverter in the described frequency modulation single chip control module, the P2.0 port of this single-chip microcomputer is connected to the control signal input that inverter is adjusted drive circuit, the driving signal output part of described inverter adjustment drive circuit is connected to the control end of described IPP26CN10N type high-power switch tube, to realize turning on and off of the described IPP26CN10N type high-power switch tube of control, the timer initial value in the described frequency modulation single chip control module on the single-chip microcomputer is set end as the input of frequency adjusted signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220609537 CN202856631U (en) | 2012-11-16 | 2012-11-16 | Voltage-adjustable frequency-adjustable inverter power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220609537 CN202856631U (en) | 2012-11-16 | 2012-11-16 | Voltage-adjustable frequency-adjustable inverter power supply |
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| Publication Number | Publication Date |
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| CN202856631U true CN202856631U (en) | 2013-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220609537 Expired - Fee Related CN202856631U (en) | 2012-11-16 | 2012-11-16 | Voltage-adjustable frequency-adjustable inverter power supply |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578809A (en) * | 2013-10-16 | 2015-04-29 | 鸿富锦精密电子(天津)有限公司 | Power output device and power socket |
| CN109525104A (en) * | 2018-10-09 | 2019-03-26 | 三英精控（天津）仪器设备有限公司 | The adjustable AC/DC universal power supply of frequency amplitude |
-
2012
- 2012-11-16 CN CN 201220609537 patent/CN202856631U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578809A (en) * | 2013-10-16 | 2015-04-29 | 鸿富锦精密电子(天津)有限公司 | Power output device and power socket |
| CN104578809B (en) * | 2013-10-16 | 2017-11-07 | 鸿富锦精密电子(天津)有限公司 | Power output device and power socket |
| CN109525104A (en) * | 2018-10-09 | 2019-03-26 | 三英精控（天津）仪器设备有限公司 | The adjustable AC/DC universal power supply of frequency amplitude |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20161116 |