CN204669217U - High-frequency digital power circuit - Google Patents
High-frequency digital power circuit Download PDFInfo
- Publication number
- CN204669217U CN204669217U CN201520320044.2U CN201520320044U CN204669217U CN 204669217 U CN204669217 U CN 204669217U CN 201520320044 U CN201520320044 U CN 201520320044U CN 204669217 U CN204669217 U CN 204669217U
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- CN
- China
- Prior art keywords
- circuit
- voltage regulator
- driver element
- optical coupler
- connects
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- 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
Abstract
The utility model discloses a kind of high-frequency digital power circuit, comprise EMI filter-rectifier, optical coupler driver element, microcontroller, voltage regulator circuit and switching circuit; Described EMI filter-rectifier, voltage regulator circuit, microcontroller and optical coupler driver element successively circuit connect; Described switching circuit one end is connected with described voltage regulator circuit and the other end is connected with described optical coupler driver element circuit.High-frequency digital power circuit provided by the utility model, output signal has stable magnitude of voltage, avoids the power supply that in prior art, voltage signal instability causes and damages.
Description
Technical field
The utility model relates to power factor regulation field, particularly relate to high-frequency digital power circuit.
Background technology
Power factor correction (PFC, Power Factor Correction), namely adjust the relation between effective power and total power consumption, namely effective power is divided by the ratio of total power consumption (apparent power).It will be understood by those skilled in the art that and the degree that power factor can be weighed electric power and is used effectively when power factor (PF) value is larger, represent its electric power utilance higher.In power factor calibration system, its Digital Discrete sampling module need carry out proportional integral adjustment to the mixed DC voltage containing harmonic component and other waveforms and DC current signal, adopt in prior art to dis-crete sample values be averaged value calculate mode regulate, but for will calculate the mean value of its dis-crete sample values containing the direct-flow output signal exchanging second harmonic, at least to all sampled values in 10 millisecond periods be averaged, such proportional integral adjustment can cause voltage signal time delay at least 10 milliseconds, namely the dynamic response time that proportional integral regulates at least needs 10 milliseconds.For high-frequency digital power supply, dynamic response time long, the damage of power supply can be caused, and larger fluctuation is existed for the mean value of the waveshape being not equal to computing cycle containing the repetition period, the output signal that this just makes proportional integral regulate is unstable, thus makes output voltage there is larger fluctuation.
Utility model content
The purpose of this utility model is to provide a kind of high-frequency digital power circuit.
The utility model provides a kind of high-frequency digital power circuit, comprises EMI filter-rectifier (1), optical coupler driver element (4), microcontroller (3), voltage regulator circuit (2) and switching circuit (5); Described EMI filter-rectifier (1), voltage regulator circuit (2), microcontroller (3) and optical coupler driver element (4) successively circuit connect; Described switching circuit (5) one end is connected with described voltage regulator circuit (2) and the other end is connected with described optical coupler driver element (4) circuit.
Described microcontroller (3) comprises circuit successively and connects AD conversion unit (32), the first multiplier (33), low-pass filter unit (34), the second multiplier (35) and proportional integral regulon (36); The input of described AD conversion unit (32) is connected with described voltage regulator circuit (2); The output of described proportional integral regulon (36) is connected with described optical coupler driver element (4) circuitry phase.
High-frequency digital power circuit provided by the utility model, output signal has stable magnitude of voltage, avoids the power supply that in prior art, voltage signal instability causes and damages.
Accompanying drawing explanation
Fig. 1 is the high-frequency digital circuit construction of electric power schematic diagram described in the utility model embodiment;
Fig. 2 is the circuit structure diagram of the high-frequency digital power circuit described in the utility model embodiment;
Fig. 3 is for being controller principle schematic diagram described in the high-frequency digital power circuit described in the utility model embodiment.
Embodiment
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, the high-frequency digital power circuit that the present embodiment provides, comprises EMI filter-rectifier 1, optical coupler driver element 4, microcontroller 3, voltage regulator circuit 2 and switching circuit 5; Described EMI filter-rectifier 1, voltage regulator circuit 2, microcontroller 3 and optical coupler driver element 4 successively circuit connect; Described switching circuit 5 one end is connected with described voltage regulator circuit 2 and the other end is connected with described optical coupler driver element 4 circuit.
As described in Figure 3, described microcontroller 3 comprises circuit successively and connects AD conversion unit 32, first multiplier 33, low-pass filter unit 34, second multiplier 35 and proportional integral regulon 36; The input of described AD conversion unit 32 is connected with described voltage regulator circuit 2; The output of described proportional integral regulon 36 is connected with described optical coupler driver element 4 circuitry phase.It will be appreciated by those skilled in the art that, the output signal of described voltage regulator circuit 2 is the first voltage signal Udc, described first voltage signal is an analog signal, after described first voltage signal Udc is input to described AD conversion unit 32, described D/A converting circuit carries out analog-to-digital conversion to it and exports the second voltage signal, described second voltage signal is a digital signal, after described second voltage signal is input to described first multiplier 33, be tertiary voltage signal through described first multiplier 33 calculation process, described tertiary voltage signal is the digital signal with described first voltage signal with identical magnitude of voltage, described tertiary voltage signal inputs to described low-pass filter unit 34 after described first multiplier 33 exports, described low-pass filter unit 34 exports the 4th voltage signal after carrying out filtering process to described tertiary voltage signal, described 4th voltage signal is pure d. c. voltage signal, described 4th voltage signal inputs to described second multiplier 35, and carry out subtraction with the setting voltage signal Vref of described second multiplier 35 thus obtain the 5th voltage signal, described 5th voltage signal is the error voltage signal of described 4th voltage signal and described setting voltage signal Vref, described 5th voltage signal carries out after proportional integral adjustment process through described proportional integral regulon 36, export the 6th voltage signal, described 6th voltage signal is as the drive voltage signal of optical coupler driver element 4, there is stable magnitude of voltage, avoid the power supply that in prior art, voltage signal instability causes to damage.
As shown in Figure 3, described microcontroller 3 also comprises a pwm unit 37, and the input of pwm unit 37 connects the input of described proportional integral regulon 36 and the output of described pwm unit 37 connects the input of described optical coupler driver element 4.
As shown in Figure 2, described switching circuit 5 is an insulated gate enhancement mode N-MOS pipe Q1, and the grid of described metal-oxide-semiconductor Q1 is connected with described optical coupler driver element 4; The error of omission of described metal-oxide-semiconductor Q1 is connected with described voltage regulator circuit 2; Source electrode ground connection after the second resistance R1 dividing potential drop of described metal-oxide-semiconductor Q1.
Further, described voltage regulator circuit 2 comprises the first diode D1, the second diode D2, the first electric capacity C1, the second electric capacity C2, coupling inductance L and the first resistance R1; Described coupling inductance L comprises the first inductance L 1 and the second inductance L 2, and described first inductance L 1 one end connects the output of described EMI filter-rectifier 1 and the other end connects the error of omission of described metal-oxide-semiconductor Q1; The anode of described first diode D1 connects the error of omission of described metal-oxide-semiconductor Q1 and negative electrode is connected with one end of described first resistance R1, and the other end of described first resistance R1 is connected on the output of described EMI filter-rectifier 1; Described first electric capacity C1 and described first resistance R1 also connects; Described second diode D2 anode connects the input that described second inductance L 2 and negative electrode connect described microcontroller 3; Described second electric capacity C2 one end is connected with the negative electrode of described second diode D2 and the other end is connected with the other end of described second inductance L 2.
Described microcontroller 3 also can comprise a divider, and the input of described divider is connected with the output of described voltage regulator circuit 2 and the output of described divider is connected with described AD conversion unit 32.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (6)
1. a high-frequency digital power circuit, is characterized in that: comprise EMI filter-rectifier (1), optical coupler driver element (4), microcontroller (3), voltage regulator circuit (2) and switching circuit (5); Described EMI filter-rectifier (1), voltage regulator circuit (2), microcontroller (3) and optical coupler driver element (4) successively circuit connect; Described switching circuit (5) one end is connected with described voltage regulator circuit (2) and the other end is connected with described optical coupler driver element (4) circuit.
2. high-frequency digital power circuit as claimed in claim 1, is characterized in that: described microcontroller (3) comprises circuit successively and connects AD conversion unit (32), the first multiplier (33), low-pass filter unit (34), the second multiplier (35) and proportional integral regulon (36); The input of described AD conversion unit (32) is connected with described voltage regulator circuit (2); The output of described proportional integral regulon (36) is connected with described optical coupler driver element (4) circuitry phase.
3. high-frequency digital power circuit as claimed in claim 2, it is characterized in that: described microcontroller (3) also comprises a pwm unit (37), the input of pwm unit (37) connects the input of described proportional integral regulon (36) and the output of described pwm unit (37) connects the input of described optical coupler driver element (4).
4. high-frequency digital power circuit as claimed in claim 1, it is characterized in that: described switching circuit (5) is that an insulated gate enhancement mode N-MOS manages (Q1), and the grid of described metal-oxide-semiconductor (Q1) is connected with described optical coupler driver element (4); The error of omission of described metal-oxide-semiconductor (Q1) is connected with described voltage regulator circuit (2); Source electrode ground connection after the second resistance (R1) dividing potential drop of described metal-oxide-semiconductor (Q1).
5. high-frequency digital power circuit as claimed in claim 4, is characterized in that: described voltage regulator circuit (2) comprises the first diode (D1), the second diode (D2), the first electric capacity (C1), the second electric capacity (C2), coupling inductance (L) and the first resistance (R1); Described coupling inductance (L) comprises the first inductance (L1) and the second inductance (L2), and described first inductance (L1) one end connects the output of described EMI filter-rectifier (1) and the other end connects the error of omission of described metal-oxide-semiconductor (Q1); The anode of described first diode (D1) connects the error of omission of described metal-oxide-semiconductor (Q1) and negative electrode is connected with one end of described first resistance (R1), and the other end of described first resistance (R1) is connected on the output of described EMI filter-rectifier (1); Described first electric capacity (C1) and described first resistance (R1) also connect; Described second diode (D2) anode connects described second inductance (L2) and negative electrode connects the input of described microcontroller (3); Described second electric capacity (C2) one end is connected with the negative electrode of described second diode (D2) and the other end is connected with the other end of described second inductance (L2).
6. high-frequency digital power circuit as claimed in claim 2, it is characterized in that: described microcontroller (3) also can comprise a divider, the input of described divider is connected with the output of described voltage regulator circuit (2) and the output of described divider is connected with described AD conversion unit (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520320044.2U CN204669217U (en) | 2015-05-16 | 2015-05-16 | High-frequency digital power circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520320044.2U CN204669217U (en) | 2015-05-16 | 2015-05-16 | High-frequency digital power circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204669217U true CN204669217U (en) | 2015-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520320044.2U Withdrawn - After Issue CN204669217U (en) | 2015-05-16 | 2015-05-16 | High-frequency digital power circuit |
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| Country | Link |
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| CN (1) | CN204669217U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186851A (en) * | 2015-05-16 | 2015-12-23 | 巨尔(上海)光电照明有限公司 | High-frequency digital power circuit |
-
2015
- 2015-05-16 CN CN201520320044.2U patent/CN204669217U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186851A (en) * | 2015-05-16 | 2015-12-23 | 巨尔(上海)光电照明有限公司 | High-frequency digital power circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150923 Effective date of abandoning: 20180814 |