CN203951379U - A kind of rectification circuit - Google Patents
A kind of rectification circuit Download PDFInfo
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- CN203951379U CN203951379U CN201420396112.9U CN201420396112U CN203951379U CN 203951379 U CN203951379 U CN 203951379U CN 201420396112 U CN201420396112 U CN 201420396112U CN 203951379 U CN203951379 U CN 203951379U
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- circuit
- rectification
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Abstract
The utility model provides a kind of rectification circuit, belongs to electronic technology field.This finishing circuit comprises: by the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, the 3rd metal-oxide-semiconductor, the 4th metal-oxide-semiconductor, be composed in series rectification series circuit, the positive terminal of rectification series circuit is ac input end, and the negative pole end of rectification series circuit is DC output end; DC output end connects digital signal generation unit, digital signal generation unit connection control unit, and control unit connects respectively the grid of the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, the 3rd metal-oxide-semiconductor, the 4th metal-oxide-semiconductor.This rectification circuit has added digital signal generation unit and control unit at DC output end, produces control signal and controls forming the metal-oxide-semiconductor grid of rectifier bridge, reaches the object of controlling Output Voltage in Rectified Circuits.Guarantee the stability of output voltage, thereby avoided the technical problem that causes load circuit lifetime, brownout to cause load circuit normally to work because of overtension.
Description
Technical field
The utility model belongs to electronic technology field, particularly a kind of rectification circuit.
Background technology
The voltage of rectification circuit output is large especially on the impact of rear end load circuit, and when back-end circuit has strict demand to input voltage, the output voltage of controlling rectification circuit is most important;
In prior art, rectification circuit is not controlled rectifier output voltage mostly, thereby affects the useful life of load circuit;
Therefore, how guaranteeing that the magnitude of voltage of rectification chip output is stable and controlled, avoid causing load circuit normally to work because overtension causes lifetime, the brownout of load circuit, is the art personnel problem demanding prompt solutions.
Utility model content
In view of this, the utility model provides a kind of output voltage controlled rectification circuit, to improve the useful life of load circuit.
A rectification circuit, comprising: the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, the 3rd metal-oxide-semiconductor, the 4th metal-oxide-semiconductor, digital signal generation unit, control unit;
Described the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, the 3rd metal-oxide-semiconductor, the 4th metal-oxide-semiconductor are composed in series rectification series circuit, and the positive terminal of described rectification series circuit is ac input end, and the negative pole end of described rectification series circuit is DC output end;
Described DC output end connects described digital signal generation unit, and described digital signal generation unit connects described control unit, and described control unit connects respectively the grid of described the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, the 3rd metal-oxide-semiconductor, the 4th metal-oxide-semiconductor.
Further, described the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, the 3rd metal-oxide-semiconductor, the 4th metal-oxide-semiconductor are enhancement mode metal-oxide-semiconductor or depletion type MOS tube.
Further, described digital signal generation unit is analog to digital converter or comparator.
Further, control unit is resistor voltage divider circuit or reference voltage circuit.
Further, described resistor voltage divider circuit comprises: a plurality of resistance resistance series circuit in series, and described resistance series circuit one end is connected with ground, and the other end is connected with power supply, between every two resistance of described resistance series circuit, after connecting valve, exports.
Further, described resistance is more than or equal to 5.
The rectification circuit that the utility model provides has added digital signal generation unit and control unit at DC output end, produces control signal and controls forming the metal-oxide-semiconductor grid of rectifier bridge, reaches the object of controlling Output Voltage in Rectified Circuits.Guarantee the stability of output voltage, thereby avoided the technical problem that causes load circuit lifetime, brownout to cause load circuit normally to work because of overtension.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The rectification circuit schematic diagram that Fig. 1 provides for the utility model embodiment 1.
The rectification circuit schematic diagram that Fig. 2 provides for the utility model embodiment 2.
The rectification circuit schematic diagram that Fig. 3 provides for the utility model embodiment 3.
The control unit electrical block diagram that Fig. 4 provides for the utility model embodiment.
Embodiment
The utility model discloses a kind of rectification circuit, this Output Voltage in Rectified Circuits is controlled, guarantee the stability of output voltage, thereby avoided the technical problem that causes load circuit lifetime, brownout to cause load circuit normally to work because of overtension.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
A rectification circuit, as shown in Figure 1, comprising: the first metal-oxide-semiconductor M11, the second metal-oxide-semiconductor M12, the 3rd metal-oxide-semiconductor M13, the 4th metal-oxide-semiconductor M14, digital signal generation unit 11, control unit 12;
Described the first metal-oxide-semiconductor M11, the second metal-oxide-semiconductor M12, the 3rd metal-oxide-semiconductor M13, the 4th metal-oxide-semiconductor M14 are composed in series rectification series circuit, the positive terminal of described rectification series circuit is ac input end Vin, and the negative pole end of described rectification series circuit is DC output end Vout;
Described DC output end Vout connects described digital signal generation unit 11, described digital signal generation unit 11 connects described control unit 12, and described control unit 12 connects respectively the grid of described the first metal-oxide-semiconductor M11, the second metal-oxide-semiconductor M12, the 3rd metal-oxide-semiconductor M13, the 4th metal-oxide-semiconductor M14.
The rectification circuit that the utility model provides has added digital signal generation unit and control unit at DC output end, produces control signal and controls forming the metal-oxide-semiconductor grid of rectifier bridge, reaches the object of controlling Output Voltage in Rectified Circuits.Guarantee the stability of output voltage, thereby avoided the technical problem that causes load circuit lifetime, brownout to cause load circuit normally to work because of overtension.
As embodiment of the present utility model, described the first metal-oxide-semiconductor M11, the second metal-oxide-semiconductor M12, the 3rd metal-oxide-semiconductor M13, the 4th metal-oxide-semiconductor M14 are enhancement mode metal-oxide-semiconductor or depletion type MOS tube, enhancement mode metal-oxide-semiconductor and depletion type MOS tube can replace conventional diode, realize the function of rectification.Wherein, the conducting voltage that depletion type MOS tube needs is less, as preferred version of the present utility model.
As embodiment 2 of the present utility model and embodiment 3, described digital signal generation unit is analog to digital converter or comparator.As shown in Figures 2 and 3, the rectification circuit of Fig. 2 comprises: the first metal-oxide-semiconductor M21, the second metal-oxide-semiconductor M22, the 3rd metal-oxide-semiconductor M23, the 4th metal-oxide-semiconductor M24, analog to digital converter ADC, control unit 22; Its circuit structure is identical with embodiment 1, adopts analog to digital converter to produce digital signal control unit 22 is controlled.The rectification circuit of Fig. 3 comprises: the first metal-oxide-semiconductor M31, the second metal-oxide-semiconductor M32, the 3rd metal-oxide-semiconductor M33, the 4th metal-oxide-semiconductor M34, comparator C OMP, control unit 32; Its circuit structure is identical with embodiment 1, adopts comparator to produce digital signal control unit 32 is controlled.Comparator converts the single channel analog voltage signal of rectification series circuit output to two-way digital voltage signal, control unit is realized to two-way and control; Analog to digital converter converts the single channel analog voltage signal of rectification series circuit output to multi-path digital voltage signal, thereby the multichannel of control unit is controlled simultaneously, and control precision is higher than the control precision of comparator.As required, can select wherein any one.
As embodiment of the present utility model, control unit is resistor voltage divider circuit or reference voltage circuit.
As embodiment of the present utility model, described resistor voltage divider circuit comprises: a plurality of resistance resistance series circuit in series, described resistance series circuit one end is connected with ground, and the other end is connected with power supply, between every two resistance of described resistance series circuit, after connecting valve, exports.
Further, described resistance is more than or equal to 5.The number of resistance is determined by the precision of analog to digital converter herein, and precision is higher, and required resistance number is more.
As embodiment of the present utility model, as shown in Figure 4, be the resistor voltage divider circuit that adopts 5 resistance to form.Resistor voltage divider circuit comprises: by the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5 resistance series circuit in series, another termination power of described the 5th resistance R 5, the other end ground connection of described the first resistance R 1; Between the first resistance R 1 and the second resistance R 2, connect the first switch S 1 rear as output, between the second resistance R 2 and the 3rd resistance R 3, connect after second switch S2 as output, between the 3rd resistance R 3 and the 4th resistance R 4, connect the 3rd switch S 3 rear as output, between the 4th resistance R 4 and the 5th resistance R 5, connect the 4th switch S 4 rear as output; Described output connects the grid of described the first metal-oxide-semiconductor M11, the second metal-oxide-semiconductor M12, the 3rd metal-oxide-semiconductor M13, the 4th metal-oxide-semiconductor M14.Described digital signal generation unit output is controlled the break-make of the first switch S 1, second switch S2, the 3rd switch S 3, the 4th switch S 4.
The rectification circuit that the utility model provides has added analog to digital converter and resistor voltage divider circuit at DC output end, produces control signal and controls forming the metal-oxide-semiconductor grid of rectifier bridge, reaches the object of controlling Output Voltage in Rectified Circuits.Guarantee the stability of output voltage, thereby avoided the technical problem that causes load circuit lifetime, brownout to cause load circuit normally to work because of overtension.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the utility model.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. a rectification circuit, is characterized in that: comprising: the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, the 3rd metal-oxide-semiconductor, the 4th metal-oxide-semiconductor, digital signal generation unit, control unit;
Described the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, the 3rd metal-oxide-semiconductor, the 4th metal-oxide-semiconductor are composed in series rectification series circuit, and the positive terminal of described rectification series circuit is ac input end, and the negative pole end of described rectification series circuit is DC output end;
Described DC output end connects described digital signal generation unit, and described digital signal generation unit connects described control unit, and described control unit connects respectively the grid of described the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, the 3rd metal-oxide-semiconductor, the 4th metal-oxide-semiconductor.
2. rectification circuit as claimed in claim 1, is characterized in that, described the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, the 3rd metal-oxide-semiconductor, the 4th metal-oxide-semiconductor are enhancement mode metal-oxide-semiconductor or depletion type MOS tube.
3. rectification circuit as claimed in claim 1, is characterized in that, described digital signal generation unit is analog to digital converter or comparator.
4. the rectification circuit as described in claim 1-3 any one, is characterized in that, control unit is resistor voltage divider circuit or reference voltage circuit.
5. rectification circuit as claimed in claim 4, it is characterized in that, described resistor voltage divider circuit comprises: a plurality of resistance resistance series circuit in series, described resistance series circuit one end is connected with ground, the other end is connected with power supply, between every two resistance of described resistance series circuit, after connecting valve, exports.
6. rectification circuit as claimed in claim 5, is characterized in that, described resistance is more than or equal to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420396112.9U CN203951379U (en) | 2014-07-17 | 2014-07-17 | A kind of rectification circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420396112.9U CN203951379U (en) | 2014-07-17 | 2014-07-17 | A kind of rectification circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203951379U true CN203951379U (en) | 2014-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420396112.9U Expired - Fee Related CN203951379U (en) | 2014-07-17 | 2014-07-17 | A kind of rectification circuit |
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| CN (1) | CN203951379U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110071647A (en) * | 2019-04-01 | 2019-07-30 | 邓依诺 | A kind of middle school student's Experiment of Electrical Circuits power-supply system |
-
2014
- 2014-07-17 CN CN201420396112.9U patent/CN203951379U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110071647A (en) * | 2019-04-01 | 2019-07-30 | 邓依诺 | A kind of middle school student's Experiment of Electrical Circuits power-supply system |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 Termination date: 20170717 |