CN105183125A - Case control circuit and case - Google Patents
Case control circuit and case Download PDFInfo
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- CN105183125A CN105183125A CN201510700209.3A CN201510700209A CN105183125A CN 105183125 A CN105183125 A CN 105183125A CN 201510700209 A CN201510700209 A CN 201510700209A CN 105183125 A CN105183125 A CN 105183125A
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- 238000001914 filtration Methods 0.000 claims abstract description 53
- 230000008030 elimination Effects 0.000 claims abstract description 13
- 238000003379 elimination reaction Methods 0.000 claims abstract description 13
- 230000009466 transformation Effects 0.000 claims description 29
- 239000003990 capacitor Substances 0.000 claims description 13
- 239000010409 thin film Substances 0.000 claims description 12
- 238000004804 winding Methods 0.000 claims description 9
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 239000004793 Polystyrene Substances 0.000 claims description 6
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims description 6
- 239000003985 ceramic capacitor Substances 0.000 claims description 6
- 125000004494 ethyl ester group Chemical group 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- -1 polypropylene Polymers 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 229920002223 polystyrene Polymers 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 description 5
- 241000272525 Anas platyrhynchos Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention belongs to the field of case control, and particularly relates to a case control circuit and a case. The case control circuit comprises a noise elimination module, an overcurrent and overvoltage protection module, a first rectifying and filtering module, a voltage conversion module and a second rectifying and filtering module which are connected in sequence. The functional modules are combined in a specific connection mode so as to achieve the functions of the case control circuit, the working voltage and temperature of the case can meet requirements, working efficiency can be improved, energy consumption can be reduced, and the use safety and service life of the case are guaranteed.
Description
Technical field
The invention belongs to cabinet control field, particularly a kind of cabinet control circuit and cabinet.
Background technology
Cabinet is as the part in computer fittings; the Main Function that it rises places and fixing each computer fittings; play a support and protective effect; in addition; computer housing has the vital role of the shielding of electromagnetic radiation; because cabinet can improve rapidly overall performance unlike accessories such as CPU, video card, mainboards, so be not listed in emphasis to consider object in DIY always.But cabinet is not like water off a duck's back, after some users have bought cabinet of inferior brand yet, because mainboard and cabinet form loop, cause short circuit, make system become very unstable.
There is operating voltage instability in current chassis power supply control circuit, inefficient problem, causes electric energy loss, works long hours also easily to damage cabinet in abnomal condition.
Summary of the invention
The object of the present invention is to provide a kind of cabinet control circuit, be intended to solve existing cabinet control circuit operating voltage not quietly, efficiency is low, causes the problem of electric energy loss.
The present invention is achieved in that a kind of cabinet control circuit, comprises the noise elimination module, overcurrent and overvoltage protective module and the first rectification filtering module that connect successively; Also comprise:
Input end connects the output terminal of described first rectification filtering module, receives the first direct current that described first rectification filtering module exports, and described first direct current is converted to the voltage transformation module of the first alternating current;
First input end and the second input end are connected the first positive output end and second positive output end of described voltage transformation module respectively, carry out rectifying and wave-filtering process and generate the second galvanic second rectification filtering module to described first alternating current;
The output terminal of described second rectification filtering module and the negative output terminal of described voltage transformation module are positive output end and the negative output terminal of described cabinet control circuit respectively;
Described voltage transformation module comprises switch module, resonance modules and transformer;
The input end of described switch module is the input end of described voltage transformation module, the input end of described resonance modules connects the first output terminal of described switch module, the output terminal of described resonance modules connects the first end of described primary winding, second output terminal of described switch module connects the second end of described primary winding, and the first end of the secondary winding of described transformer, the second end and tap are the first positive output end of described voltage transformation module, the second positive output end and negative output terminal respectively.
Another object of the present invention is also to provide a kind of cabinet, also comprises above-mentioned cabinet control circuit.
Cabinet control circuit provided by the present invention includes the noise elimination module, overcurrent and overvoltage protective module, the first rectification filtering module, voltage transformation module and the second rectification filtering module that connect successively; By these functional modules being combined by specific connected mode, to realize the function of cabinet control circuit, and the operating voltage temperature of cabinet can be made, increasing work efficiency, reduce energy consumption, ensured use safety and the serviceable life of cabinet.
Accompanying drawing explanation
Fig. 1 is the function structure chart of the cabinet control circuit that one embodiment of the invention provides;
Fig. 2 is the exemplary circuit structural drawing of the voltage transformation module that one embodiment of the invention provides;
Fig. 3 is the exemplary circuit structural drawing of the second rectification filtering module that one embodiment of the invention provides;
Fig. 4 is the exemplary circuit structural drawing of the first rectification filtering module that one embodiment of the invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Fig. 1 shows the modular structure of the cabinet control circuit that the embodiment of the present invention provides, and for convenience of explanation, illustrate only the part relevant to the embodiment of the present invention, details are as follows:
The cabinet control circuit that the embodiment of the present invention provides comprises the city's alternating current 10, noise elimination module 20, overcurrent and overvoltage protective module 30 and the first rectification filtering module 40 that connect successively.
In embodiments of the present invention, cabinet control circuit also comprises:
Input end connects the output terminal of the first rectification filtering module, receives the first direct current that the first rectification filtering module 40 exports, and the first direct current is converted to the voltage transformation module 50 of the first alternating current;
First input end and the second input end are connected the first positive output end and second positive output end of voltage transformation module 50 respectively, carry out rectifying and wave-filtering process and generate the second galvanic second rectification filtering module 60 to the first alternating current;
Wherein, the output terminal of the second rectification filtering module 60 and the negative output terminal of voltage transformation module 50 are positive output end and the negative output terminal of cabinet control circuit respectively;
As one embodiment of the invention, voltage transformation module 50 can comprise switch module 501, resonance modules 502 and transformer T1;
The input end of switch module 501 is input ends of voltage transformation module 50, first output terminal of the input end connecting valve module 501 of resonance modules 502, the first end of the output terminal connection transformer T1 armature winding of resonance modules 502, second end of the second output terminal connection transformer T1 armature winding of switch module 501, the first end of the secondary winding of transformer T1, the second end and tap are the first positive output end of voltage transformation module 50, the second positive output end and negative output terminal respectively.
The cabinet control circuit that the embodiment of the present invention provides includes the three-phase alternating current electrical interface 10, noise elimination module 20, first rectification filtering module 40, voltage transformation module 50 and the second rectification filtering module 60 that connect successively; Access three-phase alternating current by three-phase alternating current electrical interface 10, the electric energy transport capacity utilizing three-phase alternating current stronger, alleviates the burden of supply network; Wherein, voltage transformation module 50 includes switch module 501, resonance modules 502 and transformer, utilize the resonance current that resonance modules 502 produces, the current phase of switch tube module is allowed to lag behind voltage, switch module 501 is made to realize Sofe Switch, reduce the switching loss in voltage transformation module 50, and then improve the work efficiency of voltage transformation module 50.
As one embodiment of the invention, switch module 501 can comprise:
First NMOS tube Q1, the second NMOS tube Q2 and switch control chip U1;
The drain electrode of the first NMOS tube Q1 is the input end of switch module 501, the first control end A1 of the grid connecting valve control chip U1 of the first NMOS tube Q1, the source electrode of the first NMOS tube Q1 and the drain electrode of the second NMOS tube Q2 connect the first output terminal forming switch module 501 altogether, the second control end A2 of the grid connecting valve control chip U1 of the second NMOS tube Q2, the source electrode of the second NMOS tube Q2 is the second output terminal of switch module 501, and the source electrode of the second NMOS tube Q2 and the earth terminal GND of switch control chip U1 are connected to ground altogether.
In embodiments of the present invention, the resonance oscillation semi-bridge conversion chip of switch control chip U1 can be model be L6599D or UCC25600, and be connected with other circuit modules according to its classical connection.
As one embodiment of the invention, resonance modules 502 can comprise the first inductance L 1 and the first electric capacity C1;
The first end of the first inductance L 1 is the input end of resonance modules 502, and the second end of the first inductance L 1 connects the first end of the first electric capacity C1, and second end of the first electric capacity C1 is the output terminal of resonance modules 502.
In embodiments of the present invention, the first electric capacity C1 can be thin-film capacitor or leaded multilayer ceramic capacitor;
Concrete, the material of thin-film capacitor can be poly-ethyl ester, polypropylene, polystyrene or poly-carbonic acid.
As one embodiment of the invention, the second rectification filtering module 60 can comprise:
First diode D1, the second diode D2, the second inductance L 2 and the second electric capacity C2;
The anode of the first diode D1 is the first input end of the second rectification filtering module 60, the anode of the second diode D2 is the second input end of the second rectification filtering module 60, the negative electrode of the first diode D1 and the negative electrode of the second diode D2 are connected to the first end of the second inductance L 2 altogether, second end of the second inductance L 2 and the first end of the second electric capacity C2 connect the output terminal of formation second rectification filtering module 60 altogether, the second end ground connection of the second electric capacity C2.
In embodiments of the present invention, the second electric capacity C2 can be thin-film capacitor or leaded multilayer ceramic capacitor;
Concrete, the material of thin-film capacitor can be poly-ethyl ester, polypropylene, polystyrene or poly-carbonic acid.
As one embodiment of the invention, the first rectification filtering module 40 can comprise:
3rd diode D3, the 4th diode D4, the 5th diode D5, the 6th diode D6, the 7th diode D7, the 8th diode D8, the 3rd inductance L 3 and the 3rd electric capacity C3;
The anode of the 3rd diode D3 and the negative electrode of the 4th diode D4 connect the first input end of formation first rectification filtering module 40 altogether, the anode of the 5th diode D5 and the negative electrode of the 6th diode D6 connect the second input end of formation first rectification filtering module 40 altogether, the anode of the 7th diode D7 and the negative electrode of the 8th diode D8 connect the 3rd input end of formation first rectification filtering module 40 altogether, the negative electrode of the 3rd diode D3, the negative electrode of the 5th diode D5 and the negative electrode of the 7th diode D7 are connected to the first end of the 3rd inductance L 3 altogether, second end of the 3rd inductance L 3 and the first end of the 3rd electric capacity C3 connect the output terminal of formation first rectification filtering module 40 altogether, the anode of the 4th diode D4, the anode of the 6th diode D6, the anode of the 8th diode D8 and second end of the 3rd electric capacity C3 are connected to ground altogether.
In embodiments of the present invention, the 3rd electric capacity C3 can be thin-film capacitor or leaded multilayer ceramic capacitor;
Concrete, the material of thin-film capacitor can be poly-ethyl ester, polypropylene, polystyrene or poly-carbonic acid.
In embodiments of the present invention, owing to adopting three-phase alternating current to power, reduce the load pressure of every phase, thus make cabinet control circuit that the non-electrolytic capacitor of low capacity can be adopted to substitute jumbo electrochemical capacitor.Avoid electrochemical capacitor and there is input current phase lag problem, further increase the power factor of cabinet control circuit.Also avoid the problem that electrochemical capacitor is easily aging simultaneously, improve the serviceable life of cabinet control circuit.In addition, the raising of power factor, also avoid the harmonic pollution electrical network that cabinet control circuit produces.
The principle of work of the cabinet control circuit that the present embodiment provides is further illustrated below in conjunction with Fig. 1 to Fig. 4:
Cabinet control circuit accesses three-phase alternating current by three-phase alternating current electrical interface 10; electromagnetic interference (EMI) suppression is carried out by noise elimination module 20 pairs of three-phase alternating currents; overcurrent and overvoltage protective module 30 pairs of cabinet control circuits carry out over-current over-voltage protection; first rectification filtering module 40 is by three-phase alternating current electric rectification and carry out filtering; generate the first direct current, then convert direct current to first alternating current by voltage transformation module 50.Switch control chip U1 output pulse frequency modulation signal gives the first NMOS tube Q1 and the second NMOS tube Q2, the first NMOS tube Q1 and the second NMOS tube Q2 under the control of switch control chip U1, and direct current is become high-frequency alternating current.Wherein, the first inductance L 1 and the first electric capacity C1 produce resonance current, and the first NMOS tube Q1 and the second NMOS tube Q2 only at the near zero-crossing point switch of resonance current, thus realizes no-voltage and opens and zero-current switching, i.e. soft switch technique.Transformer T1 mainly plays step-down, power transmission and insulation isolation.Finally, then by the second current rectifying and wave filtering circuit the first alternating current is converted to the second direct current required for user.
In another embodiment of the present invention, cabinet control circuit can also comprise:
Single-phase AC electrical interface, the second noise elimination module and the 3rd rectification filtering module;
Single-phase AC electrical interface access single-phase alternating current, the input end of the second noise elimination module connects the output terminal of single-phase AC electrical interface, the input end of the 3rd rectification filtering module connects the output terminal of the second noise elimination module, and the output terminal of the 3rd rectification filtering module connects the input end of voltage transformation module 50.
When cabinet control circuit is provided with three-phase alternating current electrical interface 10, set up single-phase AC electrical interface, be convenient to the actual conditions according to supply network, select access three-phase alternating current or single-phase alternating current.Wherein, three-phase alternating current electrical interface 10 and single-phase AC electrical interface all can adopt the mode of flexible connection to be connected with the input end of voltage transformation module 50, and install according to the actual requirements.Concrete, a connector can be set at the input end of voltage transformation module 50, for connecting two-way commercial power interface.
Another object of the embodiment of the present invention is also to provide a kind of cabinet, also comprises above-mentioned cabinet control circuit.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a cabinet control circuit, comprises the noise elimination module, overcurrent and overvoltage protective module and the first rectification filtering module that connect successively, it is characterized in that: also comprise:
Input end connects the output terminal of described first rectification filtering module, receives the first direct current that described first rectification filtering module exports, and described first direct current is converted to the voltage transformation module of the first alternating current;
First input end and the second input end are connected the first positive output end and second positive output end of described voltage transformation module respectively, carry out rectifying and wave-filtering process and generate the second galvanic second rectification filtering module to described first alternating current;
The output terminal of described second rectification filtering module and the negative output terminal of described voltage transformation module are positive output end and the negative output terminal of described cabinet control circuit respectively;
Described voltage transformation module comprises switch module, resonance modules and transformer;
The input end of described switch module is the input end of described voltage transformation module, the input end of described resonance modules connects the first output terminal of described switch module, the output terminal of described resonance modules connects the first end of described primary winding, second output terminal of described switch module connects the second end of described primary winding, and the first end of the secondary winding of described transformer, the second end and tap are the first positive output end of described voltage transformation module, the second positive output end and negative output terminal respectively.
2. cabinet control circuit as claimed in claim 1, it is characterized in that, described switch module comprises:
First NMOS tube, the second NMOS tube and switch control chip;
The drain electrode of described first NMOS tube is the input end of described switch module, the grid of described first NMOS tube connects the first control end of described switch control chip, the source electrode of described first NMOS tube and the drain electrode of described second NMOS tube connect the first output terminal forming described switch module altogether, the grid of described second NMOS tube connects the second control end of described switch control chip, the source electrode of described second NMOS tube is the second output terminal of described switch module, and the described source electrode of the second NMOS tube and the earth terminal of described switch control chip are connected to ground altogether.
3. cabinet control circuit as claimed in claim 1, it is characterized in that, described resonance modules comprises the first inductance and the first electric capacity;
The first end of described first inductance is the input end of described resonance modules, and the second end of described first inductance connects the first end of described first electric capacity, and the second end of described first electric capacity is the output terminal of described resonance modules.
4. cabinet control circuit as claimed in claim 1, it is characterized in that, described second rectification filtering module comprises:
First diode, the second diode, the second inductance and the second electric capacity;
The anode of described first diode is the first input end of described second rectification filtering module, the anode of described second diode is the second input end of described second rectification filtering module, the negative electrode of described first diode and the negative electrode of described second diode are connected to the first end of described second inductance altogether, second end of described second inductance and the first end of described second electric capacity connect the output terminal forming described second rectification filtering module altogether, the second end ground connection of described second electric capacity.
5. cabinet control circuit as claimed in claim 1, it is characterized in that, described first rectification filtering module comprises:
3rd diode, the 4th diode, the 5th diode, the 6th diode, the 7th diode, the 8th diode, the 3rd inductance and the 3rd electric capacity;
The anode of described 3rd diode and the negative electrode of described 4th diode connect the first input end forming described first rectification filtering module altogether, the anode of described 5th diode and the negative electrode of described 6th diode connect the second input end forming described first rectification filtering module altogether, the anode of described 7th diode and the negative electrode of described 8th diode connect the 3rd input end forming described first rectification filtering module altogether, the negative electrode of described 3rd diode, the negative electrode of described 5th diode and the negative electrode of described 7th diode are connected to the first end of described 3rd inductance altogether, second end of described 3rd inductance and the first end of described 3rd electric capacity connect the output terminal forming described first rectification filtering module altogether, the anode of described 4th diode, the anode of described 6th diode, the anode of described 8th diode and the second end of described 3rd electric capacity are connected to ground altogether.
6. cabinet control circuit as claimed in claim 1, it is characterized in that, described cabinet control circuit also comprises:
Single-phase AC electrical interface, the second noise elimination module and the 3rd rectification filtering module;
Described single-phase AC electrical interface access single-phase alternating current, the input end of described second noise elimination module connects the output terminal of described single-phase AC electrical interface, the input end of described 3rd rectification filtering module connects the output terminal of described second noise elimination module, and the output terminal of described 3rd rectification filtering module connects the input end of described voltage transformation module.
7. cabinet control circuit as claimed in claim 3, it is characterized in that, described first electric capacity is thin-film electro perhaps leaded multilayer ceramic capacitor;
The material of described thin-film capacitor is poly-ethyl ester, polypropylene, polystyrene or poly-carbonic acid.
8. cabinet control circuit as claimed in claim 4, it is characterized in that, described second electric capacity is thin-film electro perhaps leaded multilayer ceramic capacitor;
The material of described thin-film capacitor is poly-ethyl ester, polypropylene, polystyrene or poly-carbonic acid.
9. cabinet control circuit as claimed in claim 5, it is characterized in that, described 3rd electric capacity is thin-film electro perhaps leaded multilayer ceramic capacitor;
The material of described thin-film capacitor is poly-ethyl ester, polypropylene, polystyrene or poly-carbonic acid.
10. a cabinet, is characterized in that, described cabinet comprises the cabinet control circuit as described in any one of claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510700209.3A CN105183125A (en) | 2015-10-26 | 2015-10-26 | Case control circuit and case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510700209.3A CN105183125A (en) | 2015-10-26 | 2015-10-26 | Case control circuit and case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105183125A true CN105183125A (en) | 2015-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510700209.3A Pending CN105183125A (en) | 2015-10-26 | 2015-10-26 | Case control circuit and case |
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| Country | Link |
|---|---|
| CN (1) | CN105183125A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5633787A (en) * | 1994-07-21 | 1997-05-27 | Samsung Electro-Mechanics Co., Ltd. | Switch-mode power supply with control of output supply voltage and overcurrent |
| CN102255525A (en) * | 2011-06-22 | 2011-11-23 | 南京德朔实业有限公司 | Vibration absorption circuit of DC (Direct-Current) motor for door opener |
| CN202889203U (en) * | 2012-11-21 | 2013-04-17 | 东文高压电源（天津）有限公司 | Positive adjustable high-voltage power supply circuit consisting of TL5001A |
| CN203590040U (en) * | 2013-11-22 | 2014-05-07 | 深圳海天力科技有限公司 | Power supply circuit and LED street lamp |
-
2015
- 2015-10-26 CN CN201510700209.3A patent/CN105183125A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5633787A (en) * | 1994-07-21 | 1997-05-27 | Samsung Electro-Mechanics Co., Ltd. | Switch-mode power supply with control of output supply voltage and overcurrent |
| CN102255525A (en) * | 2011-06-22 | 2011-11-23 | 南京德朔实业有限公司 | Vibration absorption circuit of DC (Direct-Current) motor for door opener |
| CN202889203U (en) * | 2012-11-21 | 2013-04-17 | 东文高压电源（天津）有限公司 | Positive adjustable high-voltage power supply circuit consisting of TL5001A |
| CN203590040U (en) * | 2013-11-22 | 2014-05-07 | 深圳海天力科技有限公司 | Power supply circuit and LED street lamp |
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Application publication date: 20151223 |
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