CN110149061A - The method for transformation of High Power Factor adjustable digital DC voltage source - Google Patents
The method for transformation of High Power Factor adjustable digital DC voltage source Download PDFInfo
- Publication number
- CN110149061A CN110149061A CN201910438942.0A CN201910438942A CN110149061A CN 110149061 A CN110149061 A CN 110149061A CN 201910438942 A CN201910438942 A CN 201910438942A CN 110149061 A CN110149061 A CN 110149061A
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- China
- Prior art keywords
- voltage
- voltage source
- transformation
- power factor
- high power
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
- H02M1/4208—Arrangements for improving power factor of AC input
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
Abstract
The invention discloses a kind of method for transformation of High Power Factor adjustable digital DC voltage source, comprising: the bridge rectifier comprising filtering part is configured between 220V electric main and the part PFC-boost and is connected；By configuring the part PFC-boost to the alternating current progress PFC after rectification and being boosted to 400V；It is that observation voltage source voltage, 555 timers of configuration are PWM output circuit in real time by configuration of PT, controls light-coupled isolation pressure transmission network；The power supply for configuring 555 timer chips and optocoupler is all made of wide scope input BUCK chip voltage and obtains；The positive voltage of the current collection extremely 400V of phototriode inside configuration isolation pressure transmission optocoupler inputs, and emitter is configured as the output of corresponding optocoupler.The method for transformation of the High Power Factor adjustable digital DC voltage source is more simply easier to adjust, and overcomes voltage source for the harmonic wave interference problem of network voltage, optimizes the transformation efficiency of network voltage, improve the power factor of conversion.
Description
Technical field
The present invention relates to voltage of direct-flow voltage regulation source technology fields, and in particular, to a kind of High Power Factor adjustable digital is straight
The method for transformation of galvanic electricity potential source.
Background technique
Currently, directly rectifying to the voltage drawn from power grid, a large amount of harmonic waves can be generated, network voltage is caused to do
Also it will affect the use of electrical appliance while disturbing.Meanwhile analog circuit is larger compared with digital circuit loss, is difficult to control, and be easy
Generate certain error.
However, the component needed is more for general full-bridge transforming circuit, it is more multiple for the control of switching tube
It is miscellaneous.Carrying out voltage transformation with transformer will cause unnecessary loss, and the volume of transformer can also make voltage source overall volume
It is larger.
Therefore, it is badly in need of providing a kind of adjustable number of the High Power Factor for converting 0~400V for 220V electric main
The method for transformation of word DC voltage source.
Summary of the invention
The object of the present invention is to provide a kind of method for transformation of High Power Factor adjustable digital DC voltage source, the high powers
The method for transformation of factor adjustable digital DC voltage source is more simply easier to adjust, and overcomes voltage source for the harmonic wave of network voltage
Interference problem optimizes the transformation efficiency of network voltage, improves the safety in the power factor and use process of conversion.
To achieve the goals above, the present invention provides a kind of conversion sides of High Power Factor adjustable digital DC voltage source
Method, comprising:
Bridge rectifier comprising filtering part is configured between 220V electric main and the part PFC-boost and is connected；
By configuring the part PFC-boost to the alternating current progress PFC after rectification and being boosted to 400V；
It is that observation voltage source voltage, 555 timers of configuration are PWM output circuit, control in real time by configuration of PT
Light-coupled isolation pressure transmission network；
The power supply for configuring 555 timer chips and optocoupler is all made of wide scope input BUCK chip voltage and obtains；
The positive voltage of the current collection extremely 400V of phototriode inside configuration isolation pressure transmission optocoupler inputs, and emitter is matched
It is set to the output of corresponding optocoupler.
Preferably, input over-voltage, overcurrent are carried out using varistor, thermistor and fuse wire to the alternating current of input
Protection.
Preferably, rectifier bridge is coupled using fast recovery diode.
Preferably, PFC PFC chip model is UCC28019, and the power supply of UCC28019 is depressured by XD308H
It forms.
Preferably, the wide scope input BUCK chip model is XD308H.
Preferably, it after the wide input BUCK chip voltage of voltage source, carries out eating electric current with single amplifier OP07, then input again
The PWM of 555 Timer Controllings exports network；Also, the power supply of OP07 is depressured by XD308H.
Preferably, the collection that isolation pressure transmission optocoupler model EL305X, 400V high pressure is drawn from phototriode inside optocoupler
Electrode pin is connected, and the emitting stage of extraction is connected as output pin with load；Also, the power supply of EL305X is depressured by XD308H
It forms.
Preferably, there are Power Groud, simulation ground, the earth when PCB layout.
According to the above technical scheme, the voltage source main circuit that this method obtains is made of PFC-boost, and voltage source includes electricity
Mutual inductor, 555 timer PWM control network, light-coupled isolation pressure transmission network and wide scope input DC/DC is pressed to be depressured chip；Voltage
Source controls control circuit by PWM of the adjusting to light-coupled isolation pressure transmission network and exports total voltage, meanwhile, voltage source uses
PFC input, had both reduced itself interference to network voltage, and had also reduced influence of the network voltage to voltage source.In addition, using
Light-coupled isolation also allow the personal safety of user to be ensured while reducing production cost.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is a kind of workflow of the method for transformation of High Power Factor adjustable digital DC voltage source provided by the invention
Figure；
Fig. 2 is rectifying part in a kind of method for transformation of High Power Factor adjustable digital DC voltage source provided by the invention
Circuit diagram；
Fig. 3 is that BUCK is depressured in a kind of method for transformation of High Power Factor adjustable digital DC voltage source provided by the invention
Partial circuit diagram；
Fig. 4 is PFC- in a kind of method for transformation of High Power Factor adjustable digital DC voltage source provided by the invention
The circuit diagram of the part boost.
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
The present invention provides a kind of method for transformation of High Power Factor adjustable digital DC voltage source, comprising:
Bridge rectifier comprising filtering part is configured between 220V electric main and the part PFC-boost and is connected；
By configuring the part PFC-boost to the alternating current progress PFC after rectification and being boosted to 400V；
It is that observation voltage source voltage, 555 timers of configuration are PWM output circuit, control in real time by configuration of PT
Light-coupled isolation pressure transmission network；
The power supply for configuring 555 timer chips and optocoupler is all made of wide scope input BUCK chip voltage and obtains；
The positive voltage of the current collection extremely 400V of phototriode inside configuration isolation pressure transmission optocoupler inputs, and emitter is matched
It is set to the output of corresponding optocoupler.
Input over-voltage, overcurrent protection are carried out using varistor, thermistor and fuse wire to the alternating current of input.
It is unnecessary because diode is frequently switched on to the interference of circuit bring resonance in order to reduce, it is preferable that rectifier bridge
It is coupled using fast recovery diode.
In order to enable PFC ability is strong, surrounding component is reduced, while reducing be produced into a certain extent
This, preferably PFC PFC chip model is UCC28019, and the power supply of UCC28019 is depressured by XD308H.
Likewise, in order to reduce production cost while reducing peripheral component, it is preferable that the wide scope input
BUCK chip model is XD308H.
After the wide input BUCK chip voltage of voltage source, carries out eating electric current with single amplifier OP07, then input 555 timings again
The PWM of device control exports network；Also, the power supply of OP07 is depressured by XD308H.
The collector pin that pressure transmission optocoupler model EL305X, 400V high pressure is drawn from phototriode inside optocoupler is isolated
It is connected, the emitting stage of extraction is connected as output pin with load；Also, the power supply of EL305X is depressured by XD308H.
There are Power Groud, simulation ground, the earth when PCB layout.
Specifically, for the present invention for exporting the pressure stabilizing of 0~400V adjustable DC, the present invention is sharp in different figures with reference to Fig. 1
The network of identical function is marked with same reference numerals.It only shows and will be described described real for understanding for clarity
Apply those of the useful network of example.
Wherein, the part PFC-boost includes numeric type PFC chip, and PFC chip improves this hair
Bright power factor improves electric power utilization rate.
The output of voltage transformer and PFC-boost are connected, and voltage transformer observes output voltage in real time.Light-coupled isolation passes
Pressure network network uses high-power linear optical coupling, which is isolated the PFC-boost voltage exported.Also,
High-power linear optical coupling is controlled using PWM wave, and PWM wave is generated using 555 Timer Controlling of digit chip.In this way, 555 is fixed
When device control generate PWM wave, the control of PWM wave duty ratio by adjust the value of resistance and capacitor being connected with 555 timers from
And the frequency for exporting PWM wave and duty ratio is set to change, and then change the output voltage of the voltage source.BUCK is depressured part
It is controlled using wide scope input DC/DC decompression chip, also, BUCK is depressured after partially reducing voltage in necessary condition
It is lower eat electric current with OP07 after carry out power supply power supply for light-coupled isolation pressure transmission network.
As shown in Fig. 2, rectifying part of the present invention includes rectifier bridge, varistor, high-voltage fuse and a series of filters
Part.Wherein, rectifying part rectifier bridge is coupled by fast recovery diode, and fast recovery diode has switching characteristic good, reversely
The advantages that recovery time is short, forward current is big, small volume, simple installation, in switch power modulator (PWM), not between
It is widely used in the electronic equipments such as power supply (UPS), high-frequency heating, ac motor speed control by variable frequency, is before there is development in pole
Electric power, the electronic semiconductor components on way.Rectifying part output includes a π type filtering, and π type filtering, which is output and input, is all in
Low ESR, insertion loss characteristic ratio RC type and LC type are more preferable.
Referring to Fig. 3, the BUCK decompression portion point includes Power Groud, simulation ground and the earth.
As shown in figure 4, the part the PFC-boost further includes its accessory circuit, which includes boost boosting electricity
Road, wherein boost booster circuit is a kind of common switch DC booster circuit, it can make output voltage compare input voltage
It is high.
The voltage source main circuit obtained through the above technical solution is made of PFC-boost, and voltage source includes mutual induction of voltage
Device, 555 timer PWM control network, light-coupled isolation pressure transmission network and wide scope input DC/DC are depressured chip；Voltage source passes through
It adjusts to the PWM control of light-coupled isolation pressure transmission network and then control circuit exports total voltage, meanwhile, voltage source is inputted using PFC,
Both itself interference to network voltage had been reduced, influence of the network voltage to voltage source is also reduced.In addition, use optocoupler every
The personal safety of user is also allowed to be ensured from while reducing production cost.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical solution of the present invention
Monotropic type, these simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (8)
1. a kind of method for transformation of High Power Factor adjustable digital DC voltage source characterized by comprising
Bridge rectifier comprising filtering part is configured between 220V electric main and the part PFC-boost and is connected；Pass through
The part configuration PFC-boost carries out PFC to the alternating current after rectification and is boosted to 400V；
It is that observation voltage source voltage, 555 timers of configuration are PWM output circuit in real time by configuration of PT, controls optocoupler
Pressure transmission network is isolated；
The power supply for configuring 555 timer chips and optocoupler is all made of wide scope input BUCK chip voltage and obtains；
The positive voltage of the current collection extremely 400V of phototriode inside configuration isolation pressure transmission optocoupler inputs, and emitter is configured as
The output of corresponding optocoupler.
2. the method for transformation of High Power Factor adjustable digital DC voltage source according to claim 1, which is characterized in that right
The alternating current of input carries out input over-voltage, overcurrent protection using varistor, thermistor and fuse wire.
3. the method for transformation of High Power Factor adjustable digital DC voltage source according to claim 1, which is characterized in that whole
Stream bridge is coupled using fast recovery diode.
4. the method for transformation of High Power Factor adjustable digital DC voltage source according to claim 1, which is characterized in that
PFC PFC chip model is UCC28019, and the power supply of UCC28019 is depressured by XD308H.
5. the method for transformation of High Power Factor adjustable digital DC voltage source according to claim 1, which is characterized in that institute
Stating wide scope input BUCK chip model is XD308H.
6. the method for transformation of High Power Factor adjustable digital DC voltage source according to claim 1, which is characterized in that electricity
After the wide input BUCK chip voltage of potential source, carries out eating electric current with single amplifier OP07, then input 555 Timer Controllings again
PWM exports network；Also, the power supply of OP07 is depressured by XD308H.
7. the method for transformation of High Power Factor adjustable digital DC voltage source according to claim 1, which is characterized in that every
The collector pin drawn from pressure transmission optocoupler model EL305X, 400V high pressure from phototriode inside optocoupler is connected, and draws
Emitting stage as output pin with load be connected；Also, the power supply of EL305X is depressured by XD308H.
8. the method for transformation of High Power Factor adjustable digital DC voltage source according to claim 1, which is characterized in that
There are Power Groud, simulation ground, the earth when PCB layout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910438942.0A CN110149061A (en) | 2019-05-24 | 2019-05-24 | The method for transformation of High Power Factor adjustable digital DC voltage source |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910438942.0A CN110149061A (en) | 2019-05-24 | 2019-05-24 | The method for transformation of High Power Factor adjustable digital DC voltage source |
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| CN110149061A true CN110149061A (en) | 2019-08-20 |
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Citations (7)
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| CN101969725A (en) * | 2010-10-11 | 2011-02-09 | 复旦大学 | Intelligent general light-emitting diode (LED) street lamp illuminating power supply system |
| CN202121830U (en) * | 2011-06-10 | 2012-01-18 | 佛山市南海科谷电源有限公司 | Buck-boost constant-current power supply for LED lamps |
| CN105577003A (en) * | 2016-01-21 | 2016-05-11 | 广州金升阳科技有限公司 | Switch power supply with active power factor correction function |
| US20170055321A1 (en) * | 2015-08-17 | 2017-02-23 | Licon Technology Corporation | Complementary converter for switch mode power supply |
| CN206575206U (en) * | 2017-03-16 | 2017-10-20 | 佛山远捷电源设备有限公司 | A kind of charger circuit structure |
| CN108123624A (en) * | 2017-12-10 | 2018-06-05 | 北京工业大学 | A kind of high-precision laser remote sensing DCPS digitally controlled power source circuit |
| CN208094847U (en) * | 2018-04-10 | 2018-11-13 | 浙江榆阳电子有限公司 | A kind of efficient low ripple dimming LED drive circuit |
-
2019
- 2019-05-24 CN CN201910438942.0A patent/CN110149061A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969725A (en) * | 2010-10-11 | 2011-02-09 | 复旦大学 | Intelligent general light-emitting diode (LED) street lamp illuminating power supply system |
| CN202121830U (en) * | 2011-06-10 | 2012-01-18 | 佛山市南海科谷电源有限公司 | Buck-boost constant-current power supply for LED lamps |
| US20170055321A1 (en) * | 2015-08-17 | 2017-02-23 | Licon Technology Corporation | Complementary converter for switch mode power supply |
| CN105577003A (en) * | 2016-01-21 | 2016-05-11 | 广州金升阳科技有限公司 | Switch power supply with active power factor correction function |
| CN206575206U (en) * | 2017-03-16 | 2017-10-20 | 佛山远捷电源设备有限公司 | A kind of charger circuit structure |
| CN108123624A (en) * | 2017-12-10 | 2018-06-05 | 北京工业大学 | A kind of high-precision laser remote sensing DCPS digitally controlled power source circuit |
| CN208094847U (en) * | 2018-04-10 | 2018-11-13 | 浙江榆阳电子有限公司 | A kind of efficient low ripple dimming LED drive circuit |
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Application publication date: 20190820 |