CN105846694A - Switch power supply circuit system with voltage real-time detection - Google Patents
Switch power supply circuit system with voltage real-time detection Download PDFInfo
- Publication number
- CN105846694A CN105846694A CN201610307219.5A CN201610307219A CN105846694A CN 105846694 A CN105846694 A CN 105846694A CN 201610307219 A CN201610307219 A CN 201610307219A CN 105846694 A CN105846694 A CN 105846694A
- Authority
- CN
- China
- Prior art keywords
- rectification filtering
- input
- unit
- filtering unit
- outfan
- 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.)
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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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
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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
- 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
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention relates to a switch power supply circuit system with voltage real-time detection. The system comprises an EMI circuit, a first rectification filtering unit, a power conversion unit, a second rectification filtering unit, an output end, an output voltage acquisition module and a single-chip microcomputer, wherein the output end of the EMI circuit is connected with the input end of the first rectification filtering unit, the output end of the first rectification filtering unit is connected with the input end of the power conversion unit, the input end of an input overvoltage/undervoltage protection unit and the input end of a PFC unit, the output end of the power conversion unit is connected with the second rectification filtering unit, the output end of the second rectification filtering unit is provided with the output voltage acquisition module, the output voltage acquisition module can transmit acquired signals to the single-chip microcomputer for data processing, and the output end of the input overvoltage/undervoltage protection unit is connected with input end of the PFC unit and the input end of a pulse width modulator. The switch power supply circuit system has the advantages of reasonable and optimized circuit, higher intelligence, higher safety and power saving effect, fast switching time and wide coverage frequency band.
Description
Technical field
The present invention relates to switch power technology field, the switching power circuit system of a kind of real-time detection with voltage.
Background technology
Switching Power Supply is to utilize modern power electronics technology, controls the time ratio that switching tube turns on and off, and maintains a kind of power supply of regulated output voltage, and Switching Power Supply is typically controlled IC and MOSFET by pulse width modulation (PWM) and constitutes.Development and innovation along with Power Electronic Technique so that switch power technology is also innovated constantly.At present, Switching Power Supply is widely used almost all of electronic equipment with small-sized, light weight and high efficiency feature, is that current electronics and information industry develops rapidly indispensable a kind of power mode.More existing switch power source functions are single, there is many deficiencies at energy-conservation and secure context.
Summary of the invention
Not enough for above-mentioned prior art, the present invention provides the switching power circuit system of a kind of real-time detection with voltage.
The switching power circuit system of the real-time detection a kind of with voltage that the present invention provides is achieved through the following technical solutions:
nullA kind of switching power circuit system of real-time detection with voltage，It is characterized in that: include EMI circuit、First rectification filtering unit、Power conversion unit、Second rectification filtering unit、Outfan、Output voltage acquisition module、Single-chip microcomputer，The outfan of described EMI circuit connects the input of the first rectification filtering unit，The outfan of described first rectification filtering unit connects the input of power conversion unit respectively、Input overvoltage/undervoltage protected location input and the input of PFC unit，Described power conversion unit outfan connects the second rectification filtering unit，Described second rectification filtering unit outfan arranges output voltage acquisition module，The signal collected transmission can be carried out data process to single-chip microcomputer by described output voltage acquisition module，Described input overvoltage/undervoltage protected location outfan connects the input of PFC unit and pulse-width modulator respectively，The outfan of described second rectification filtering unit arranges sampling module，Described sampling module outfan connects voltage stabilizing loop，Described voltage stabilizing loop output connects pulse-width modulator input，Described pulse-width modulator outfan connects power conversion unit.
The invention has the beneficial effects as follows: can the value of monitoring voltage in real time, improve the stability run, circuit reasonably optimizing, more intelligent, the most safe and power saving, Insertion Loss is little, and switch time is fast, covers bandwidth.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
By embodiment, technical scheme will be clearly and completely described below, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those skilled in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
nullThe switching power circuit system of real-time detection a kind of with voltage as shown in Figure 1，It is characterized in that: include EMI circuit、First rectification filtering unit、Power conversion unit、Second rectification filtering unit、Outfan、Output voltage acquisition module、Single-chip microcomputer，The outfan of described EMI circuit connects the input of the first rectification filtering unit，The outfan of described first rectification filtering unit connects the input of power conversion unit respectively、Input overvoltage/undervoltage protected location input and the input of PFC unit，Described power conversion unit outfan connects the second rectification filtering unit，Described second rectification filtering unit outfan arranges output voltage acquisition module，The signal collected transmission can be carried out data process to single-chip microcomputer by described output voltage acquisition module，Described input overvoltage/undervoltage protected location outfan connects the input of PFC unit and pulse-width modulator respectively，The outfan of described second rectification filtering unit arranges sampling module，Described sampling module outfan connects voltage stabilizing loop，Described voltage stabilizing loop output connects pulse-width modulator input，Described pulse-width modulator outfan connects power conversion unit.
Embodiment described above only represents embodiments of the present invention, and it describes more concrete and detailed, but can not be interpreted as limitation of the scope of the invention.It should be pointed out that, for a person skilled in the art, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these broadly fall into scope.
Claims (1)
- null1. the switching power circuit system of a real-time detection with voltage，It is characterized in that: include EMI circuit、First rectification filtering unit、Power conversion unit、Second rectification filtering unit、Outfan、Output voltage acquisition module、Single-chip microcomputer，The outfan of described EMI circuit connects the input of the first rectification filtering unit，The outfan of described first rectification filtering unit connects the input of power conversion unit respectively、Input overvoltage/undervoltage protected location input and the input of PFC unit，Described power conversion unit outfan connects the second rectification filtering unit，Described second rectification filtering unit outfan arranges output voltage acquisition module，The signal collected transmission can be carried out data process to single-chip microcomputer by described output voltage acquisition module，Described input overvoltage/undervoltage protected location outfan connects the input of PFC unit and pulse-width modulator respectively，The outfan of described second rectification filtering unit arranges sampling module，Described sampling module outfan connects voltage stabilizing loop，Described voltage stabilizing loop output connects pulse-width modulator input，Described pulse-width modulator outfan connects power conversion unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610307219.5A CN105846694A (en) | 2016-05-11 | 2016-05-11 | Switch power supply circuit system with voltage real-time detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610307219.5A CN105846694A (en) | 2016-05-11 | 2016-05-11 | Switch power supply circuit system with voltage real-time detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105846694A true CN105846694A (en) | 2016-08-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610307219.5A Pending CN105846694A (en) | 2016-05-11 | 2016-05-11 | Switch power supply circuit system with voltage real-time detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105846694A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106376138A (en) * | 2016-10-24 | 2017-02-01 | 温州益泰光电有限公司 | Improved power circuit of LED lighting lamp |
-
2016
- 2016-05-11 CN CN201610307219.5A patent/CN105846694A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106376138A (en) * | 2016-10-24 | 2017-02-01 | 温州益泰光电有限公司 | Improved power circuit of LED lighting lamp |
| CN106376138B (en) * | 2016-10-24 | 2018-03-02 | 温州益泰光电有限公司 | A kind of LED illumination lamp power circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160810 |