CN108566082A - A kind of direct current ATX power supplys for supporting various input voltage - Google Patents
A kind of direct current ATX power supplys for supporting various input voltage Download PDFInfo
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- CN108566082A CN108566082A CN201810127359.3A CN201810127359A CN108566082A CN 108566082 A CN108566082 A CN 108566082A CN 201810127359 A CN201810127359 A CN 201810127359A CN 108566082 A CN108566082 A CN 108566082A
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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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/263—Arrangements for using multiple switchable power supplies, e.g. battery and AC
-
- 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
- H02M1/0083—Converters characterised by their input or output configuration
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Abstract
The present invention provides a kind of direct current ATX power supplys for supporting various input voltage, including external voltage feeder ear, control module and DC DC conversion modules, the control module is for detecting externally input input voltage, and by input voltage compared with predeterminated voltage, when input voltage is higher than predeterminated voltage, DC DC conversion modules are made to open, input voltage is depressurized to each operating voltage needed for direct current ATX power supplys by control DC DC conversion modules；When input voltage is equal to predeterminated voltage, DC DC conversion modules are controlled to close, external input voltage is set to be directly output to ATX interfaces, multiple voltage input can be compatible with by realizing direct current ATX power supplys, so as to support the control source of 12V or more, it solves the problems, such as that direct current ATX power supplys misuse 16V or more power supplys cause computer motherboard to burn out, and also reduces the requirement of 12V control sources.
Description
Technical field
The present invention relates to power technology more particularly to a kind of direct current ATX power supplys for supporting various input voltage.
Background technology
The effect of ATX power supplys be input voltage be converted to direct current 3.3V, 5V, 12V voltage that computer-internal uses and-
12V voltages, and generate voltage by ATX specifications and get out signal.Compared to the ATX power supplys using alternating current 220V input, direct current ATX electricity
Exchange, as input, is turned direct current (AC-DC) and is partly partially separated with DC to DC (DC-DC) by source using direct current, advantage
Being the parts DC-DC can realize that circuit area is small, has been widely used for small size, low-power consumption and mute field with high efficiency
Main frame.
DC-DC conversion topologies include at present：1) voltage-dropping type：Input voltage is higher than output voltage, control chip choosing
Select more, easy output relatively high power；2) booster type：Input voltage is less than output voltage, and output power is little；3) buck-boost type：
Input voltage is higher or lower than output voltage, and control chip selection is few, price.
Therefore, traditional direct current ATX power supplys can be divided into following a few classes by input voltage range：
The direct current ATX power supplys of 1st class, 12V control sources；
The direct current ATX power supplys (such as 16-24V, 16-36V) more than 2nd class, 16V voltages inputted；
3rd class, Width funtion input direct-current ATX power supplys (such as 6-24V).
The structure diagram of the direct current ATX power supplys of above-mentioned 1st class, as shown in Figure 1, from fig. 1, it can be seen that when input voltage is 12V
When, the 12V in the output of ATX power supplys is generated by input voltage (12V) by a switch, and the parts 12V are not necessarily to DC-DC converter,
It is at low cost, but the input voltage of such direct current ATX power supplys need to be stablized in 12V, it is more demanding to input power, it need to select to fix
The power supply adaptor of output 12V is for inputting.But if input voltage is far above 12V, and such direct current ATX power supplys do not carry out
If overvoltage protection, the output of ATX power supplys also will be above 12V, be easy to burn out computer motherboard.
The structure diagram of the direct current ATX power supplys of above-mentioned 2nd class, as shown in Fig. 2, as can be seen from Figure 2, such direct current ATX power supplys
Input voltage can be 16V or more, such as 16-24V, 12V, 5V and 3.3V of the output of this ATX power supply are converted by corresponding DC-DC
Device generates.The circuit topology of the DC-DC converter of such power supply selects voltage-dropping type, and there are many selectable chip, cheap, but
To ensure the transfer efficiency of 12V outputs, generally requires input voltage to be higher than 16V, be used for the external power supply such as power supply of control source
Adapter is available such as 19V, 20V or 24V power supply adaptor.
The structure diagram of the direct current ATX power supplys of above-mentioned 3rd class, as shown in figure 3,12V, 5V in the output of such ATX power supplys
It is generated by corresponding DC-DC converter with 3.3V, is usually used in 12V storage batterys for electrical domain, such as automobile storage battery.Input electricity at this time
Pressure can be higher than, be equal to or less than output voltage, but the circuit topology of DC-DC converter generation 12V need to select buck knot
Structure, selectable chip seldom than buck DC-DC control chip it is expensive very much, such as Linear Tech LTC3780, it is of high cost.
To sum up, the problem of existing direct current ATX power supplys, includes：1st class：It realizes simply, it is cheap, but input power is wanted
It asks high, the power supply more than 12V cannot be used as input, be otherwise easy to burn out computer motherboard；2nd class：12V voltage-dropping types are straight
There are many selectable chip of stream-direct current transducer, cheap, if input is 12V voltages, exports and generate without 12V, calculate
Machine cisco unity malfunction；3rd class：Width funtion inputs, and can export the voltage needed for computer, but price is high.
It is commonly used in the power supply adaptor of direct current ATX power inputs in the market, selection has 12V, 19V, 20V, 24V etc.
Deng.It is therefore desirable to propose a kind of circuit structure that compatible 12V and 16V or more is inputted and realize a kind of direct current ATX power supplys, increase
Above-mentioned 2nd class direct current ATX power supplys solve the 1st class direct current ATX power supplys misuse 16V or more power supplys and make to inputting the support of 12V
The problem of being burnt out at computer motherboard.
Invention content
Place in view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of various input voltages supported
Direct current ATX power supplys improve compatibility of the direct current ATX power supplys to input power under the premise of low cost.
In order to solve the above technical problems, this invention takes following technical schemes：
A kind of direct current ATX power supplys for supporting various input voltage, including ATX interfaces, control module and DC-DC moduluss of conversion
Block, the control module are used to detect externally input input voltage, and by input voltage compared with predeterminated voltage, when input electricity
When pressure is higher than predeterminated voltage, DC-DC conversion modules is made to open, input voltage is depressurized to direct current ATX by control DC-DC conversion modules
Each operating voltage needed for power supply；When input voltage is equal to predeterminated voltage, control DC-DC conversion modules are closed, and are made external defeated
Enter voltage and is directly output to ATX interfaces.
In the direct current ATX power supplys of the support various input voltage, the control module includes control unit and switch
Unit, described control unit detects externally input input voltage, and by input voltage compared with predeterminated voltage, works as input voltage
When higher or lower than predeterminated voltage, DC-DC conversion modules is made to open, switch unit closing, control DC-DC conversion modules will input
Each operating voltage needed for voltage step-down to ATX power supplys；When input voltage is equal to predeterminated voltage, DC-DC conversion modules is made to close
It closes, switch unit unlatching, external input voltage is made to be directly output to ATX interfaces.
In the direct current ATX power supplys of the support various input voltage, the DC-DC conversion modules include for that will input
Voltage is converted to the first DC-DC converting units that 12V voltages power to computer motherboard, for converting input voltage into 5V electricity
The 2nd DC-DC converting units that pressure and 3.3V voltages are powered to computer motherboard, one end connection control of the first DC-DC converting units
Molding block and externally fed end, the other end connection ATX interfaces of the first DC-DC converting units, the one of the 2nd DC-DC converting units
Link control module and externally fed end, the other end of the 2nd DC-DC converting units is held to connect ATX interfaces.
In the direct current ATX power supplys of the support various input voltage, the first DC-DC converting units include：First
Buck DC-DC controller, the first N-channel MOS pipe, the second N-channel MOS pipe, the first inductance and the first capacitance, first drop
The input terminal of die mould DC-DC controllers connects control unit, the first output end connection first of the first buck DC-DC controller
The grid of N-channel MOS pipe, the second output terminal of the first buck DC-DC controller connect the grid of the second N-channel MOS pipe, the
The drain electrode of one N-channel MOS pipe connects external voltage feeder ear, and the source electrode of the first N-channel MOS pipe connects the second N-channel MOS pipe
It drains, the third output end of one end of the first inductance and the first buck DC-DC controller, the source electrode of the second N-channel MOS pipe connects
The other end on ground, first inductance connects ATX interfaces, also by the first capacity earth, and the first N links up the grid of metal-oxide-semiconductor
Pole is also connected with switch unit.
In the direct current ATX power supplys of the support various input voltage, the 2nd DC-DC converting units include：Second
Buck DC-DC controller, third N-channel MOS pipe, the 4th N-channel MOS pipe, the 5th N-channel MOS pipe, the 6th N-channel MOS
Pipe, the second inductance, third inductance, the second capacitance and third capacitance；
The input terminal of the second buck DC-DC controller connects control unit, the second buck DC-DC controller
First output end connects the grid of third N-channel MOS pipe, and the second output terminal of buck DC-DC controller connects the 4th N-channel
The grid of metal-oxide-semiconductor, the drain electrode of third N-channel MOS pipe connect external voltage feeder ear, the source electrode connection of third N-channel MOS pipe the
The drain electrode of four N-channel MOS pipes, one end of the second inductance and the second buck DC-DC controller third output end, the 4th N ditches
The source electrode of road metal-oxide-semiconductor is grounded, and the other end of second inductance connects ATX interfaces, also by the second capacity earth；
4th output end of the second buck DC-DC controller connects the grid of the 5th N-channel MOS pipe, buck DC-DC
5th output end of controller connects the grid of the 6th N-channel MOS pipe, and the drain electrode connection external voltage of the 5th N-channel MOS pipe supplies
The source electrode at electric end, the 5th N-channel MOS pipe connects the drain electrode of the 6th N-channel MOS pipe, one end of third inductance and the second voltage-dropping type
6th output end of DC-DC controllers, the source electrode ground connection of the 6th N-channel MOS pipe, the other end of the third inductance connect ATX
Interface, also by third capacity earth.
In the direct current ATX power supplys of the support various input voltage, the switch unit includes MOS switch control core
Piece, the drain electrode of the connection of the ends V+ the external voltage feeder ear and the first N-channel MOS pipe of the MOS switch control chip, MOS switch
The ends Source for controlling chip connect the source electrode of the first N-channel MOS pipe, and the ends Gate that MOS switch controls chip connect the first N ditches
The grid of road metal-oxide-semiconductor, the ends Input that MOS switch controls chip connect control unit.
In the direct current ATX power supplys of the support various input voltage, the first buck DC-DC controller, second
Buck DC-DC controller is all made of the DC-DC controllers of LM2642.
In the direct current ATX power supplys of the support various input voltage, the MOS switch control chip is public using MICREL
The MOS switch chip of the MIC50 series of department.
Compared to the prior art, a kind of direct current ATX power supplys for supporting various input voltage provided by the invention, including outside
Power voltage supply end, control module and DC-DC conversion modules, the control module are used to detect externally input input voltage, and
By input voltage compared with predeterminated voltage, when input voltage is higher than predeterminated voltage, DC-DC conversion modules is made to open, control DC-
Input voltage is depressurized to each operating voltage needed for direct current ATX power supplys by DC conversion modules；When input voltage is equal to predeterminated voltage
When, control DC-DC conversion modules are closed, and so that external input voltage is directly output to ATX interfaces, are realized direct current ATX power supply energy
Compatible multiple voltage input solves direct current ATX power supplys misuse 16V or more power supplys so as to support the control source of 12V or more
The problem of causing computer motherboard to burn out, and also reduce the requirement of 12V control sources.
Description of the drawings
Fig. 1 is the structure diagram of the 1st class direct current ATX power supplys of the prior art.
Fig. 2 is the structure diagram of the 2nd class direct current ATX power supplys of the prior art.
Fig. 3 is the structure diagram of the 3rd class direct current ATX power supplys of the prior art.
Fig. 4 is the structure diagram of the direct current ATX power supplys provided by the invention for supporting various input voltage.
Fig. 5 is the principle signal of the control module in the direct current ATX power supplys provided by the invention for supporting various input voltage
Figure.
Fig. 6 is the first DC-DC converting units in the direct current ATX power supplys provided by the invention for supporting various input voltage
Circuit diagram.
Fig. 7 is the 2nd DC-DC converting units in the direct current ATX power supplys provided by the invention for supporting various input voltage
Circuit diagram.
Fig. 8 is the circuit diagram of the switch unit in the direct current ATX power supplys provided by the invention for supporting various input voltage.
Fig. 9 is the control flow of the control module in the direct current ATX power supplys provided by the invention for supporting various input voltage
Figure.
Specific implementation mode
Due to the power supply adaptor of direct current ATX power inputs common in the market, the selection of input voltage have 12V, 19V,
20V, 24V etc., it is therefore necessary to propose a kind of circuit structure that compatible 12V and 16V or more is inputted and realize a kind of direct current ATX
Power supply increases existing 2nd class direct current ATX power supplys to inputting the support of 12V, and solves existing 1st class direct current ATX power supplys misuse
The problem of 16V or more power supplys cause computer motherboard to burn out.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Referring to Fig. 4, its structure diagram for the direct current ATX power supplys of support various input voltage provided by the invention.Such as
Shown in Fig. 4, the direct current ATX power supplys of the support various input voltage include external voltage feeder ear 1, ATX interfaces 2, control
Module 3 and DC-DC conversion modules 4, the input terminal connection external voltage feeder ear 1 of control module, the output end of control module connects
Meet the second input terminal of DC-DC conversion modules 4, the first input end connection external voltage feeder ear 1 of DC-DC conversion modules 4, institute
The output end connection ATX interfaces 2 for stating DC-DC conversion modules 4 connect, and the ATX interfaces 2 are connect with computer motherboard.
The control module 3 is used to detect externally input input voltage, and by input voltage compared with predeterminated voltage, when
When input voltage is higher than predeterminated voltage, DC-DC conversion modules 4 is made to open, input voltage is depressured by control DC-DC conversion modules 4
To each operating voltage needed for direct current ATX power supplys, then export to ATX interfaces 2；When input voltage is equal to predeterminated voltage, control
DC-DC conversion modules are closed, and external input voltage is made to be directly output to ATX interfaces 2.
In the embodiment of the present invention, the predeterminated voltage is 12V, and external input voltage can be 12V, 19V, 20V, 24V etc., city
The voltage of common power supply adaptor output on field.The present invention need to only detect the voltage of 12V or more, when input voltage is less than 12V
When, it is directly depressured through DC-DC conversion modules 4, exports 5V or 3.3V voltages, can be compatible with to realize direct current ATX power supplys
Multiple voltage inputs, and can support the control source of 12V or more, solves direct current ATX power supplys misuse 16V or more power supplys and causes to calculate
The problem of mainboard is burnt out, and also reduce the requirement of 12V control sources.
Specifically, the ATX interfaces 2 are 24 needle ATX interfaces, are connected with the ATX sockets being arranged on computer motherboard, connect
The PS-ON signals (i.e. power on/off signal) from computer motherboard are received, export each road voltage (including needed for computer operation
12V, 5V, 3.3V, 5VSB and -12V) and PG signals (i.e. power supply gets out signal).
In the direct current ATX power supplys of the support various input voltage of the present invention, the control module 3 is mainly used for detecting
The voltage value of VIN controls DC-DC conversion modules 4 according to VIN voltage value and exports 12V, 5V, 3.3V, 5VSB and -12V.
As shown in figure 5, the control module 3 includes control unit 31 and switch unit 32, described control unit 31 detects
Externally input input voltage, and by input voltage compared with predeterminated voltage, when input voltage is higher or lower than predeterminated voltage,
DC-DC conversion modules 4 are made to open, switch unit closing, input voltage is depressurized to ATX power supplys institute by control DC-DC conversion modules 4
Each operating voltage needed；When input voltage is equal to predeterminated voltage, so that DC-DC conversion modules 4 is closed, switch unit unlatching, make
External input voltage is directly output to ATX interfaces 2.
Wherein, a microcontroller can be used to realize in the function of described control unit 31, and singlechip chip method as one wishes is partly led
STM8S series, the N76E003 series etc. of new Tang's semiconductor of body.By taking N76E003 series as an example, P1.7 feet or P3.0 feet,
It can be used for detecting input voltage, P0.3 feet, P0.4 feet, P0.5 feet, P1.2 feet, P1.5 feet etc. can be used to control switch unit.
Please continue to refer to Fig. 4, the DC-DC conversion modules 4 include for converting input voltage into 12V voltages to calculating
Mainboard power supply the first DC-DC converting units 41, for converting input voltage into 5V voltages and 3.3V voltages to computer
2nd DC-DC converting units 42 of main board power supply are converted for converting input voltage into the 3rd DC-DC of standby 5VSB voltages
Unit 43 and the 4th DC-DC converting units 44 powered to computer motherboard for converting input voltage into -12V voltages.
One end link control module 3 of first DC-DC converting units 41 and externally fed end 1, the first DC-DC converting units
41 other end connection ATX interfaces 2, one end link control module 3 of the 2nd DC-DC converting units 42 and externally fed end 1, the
One end link control module 3 of three DC-DC converting units 43 and externally fed end 1, the other end of the 3rd DC-DC converting units 43
ATX interfaces 2, one end link control module 3 of the 4th DC-DC converting units 44 and externally fed end 1 are connected, the 4th DC-DC turns
Change the other end connection ATX interfaces 2 of unit 44.
Wherein, the first DC-DC converting units 41, the 2nd DC-DC converting units 42, the 3rd DC-DC converting units 43 can adopt
With buck DC-DC circuit topology, buck-boost type DC-DC circuit topology can also be used.The 5th for generating -12V voltages
DC-DC converting units use output voltage to be realized for the charge pump of -12V, and circuit structure is the prior art, do not make herein in detail
It states.
Also referring to Fig. 6, the first DC-DC converting units include：First buck DC-DC controller U1, the first N
Channel MOS tube Q1, the second N-channel MOS pipe Q2, the first inductance L1 and the first capacitance C1, the first buck DC-DC controller
The input terminal of U1 connects control unit, and the first output end of the first buck DC-DC controller U1 connects the first N-channel MOS pipe
The grid of Q1, the second output terminal of the first buck DC-DC controller U1 connect the grid of the second N-channel MOS pipe Q2, the first N
The drain electrode of channel MOS tube Q1 connects external voltage feeder ear, and the source electrode of the first N-channel MOS pipe Q1 connects the second N-channel MOS pipe
The drain electrode of Q2, one end of the first inductance L1 and the first buck DC-DC controller U1 third output end, the second N-channel MOS pipe
The source electrode of Q2 is grounded, and the other end connection ATX interfaces of the first inductance L1 are grounded also by the first capacitance C1.
When it is implemented, the DC-DC controllers of LM2642 can be used in the first buck DC-DC controller U1, LM2642's
DC-DC controllers have a two-way DC-DC controllers, each DC-DC controller need to coordinate external two N-channel MOS FET,
One inductance and several capacitances could realize voltage output all the way.A piece of LM2642 controllers can generate two-way input voltage,
Two-way can also be merged and generate voltage all the way, with High-current output ability.In the specific implementation, the load of 12V outputs
Electric current is maximum, and the load current of 5V and 3.3V are smaller, therefore it is defeated using a piece of LM2642 two-way output to be merged into 12V all the way
Go out.
By taking LM2642 as an example, the VIN of LM2642 chips terminates external voltage, the ends PGOOD1 link control module 3, HDRV1
The grid of the first N-channel MOS pipe Q1 of end connection, the ends LDRV1 connect the grid of the second N-channel MOS pipe Q2, and the ends SW1 are the first drop
The third output end of die mould DC-DC controllers U1.Certainly, the first DC-DC converting units can also use others DC-DC decompressions
Device realization, the invention is not limited in this regard.
Also referring to Fig. 7, the 2nd DC-DC converting units include：Second buck DC-DC controller U2, the 3rd N
Channel MOS tube Q3, the 4th N-channel MOS pipe Q4, the 5th N-channel MOS pipe Q5, the 6th N-channel MOS pipe 6, the second inductance L2, third
Inductance L3, the second capacitance C2 and third capacitance C3.
Wherein, the input terminal of the second buck DC-DC controller U2 connects control unit 31, the second voltage-dropping type DC-
The grid of the first output end connection third N-channel MOS pipe Q3 of DC controllers U2, the second output of buck DC-DC controller
The grid of the 4th N-channel MOS pipe Q4 of end connection, the drain electrode connection external voltage feeder ear 1 of third N-channel MOS pipe Q3, the 3rd N
The source electrode of channel MOS tube Q3 connects the drain electrode of the 4th N-channel MOS pipe Q4, one end of the second inductance L2 and the second buck DC-DC
The third output end of controller U2, the source electrode ground connection of the 4th N-channel MOS pipe Q4, the other end of the second inductance L2 connect ATX
Interface is grounded also by the second capacitance C2.
The 4th output end of second buck DC-DC controller U2 connects the grid of the 5th N-channel MOS pipe Q5, voltage-dropping type
5th output end of DC-DC controllers connects the grid of the 6th N-channel MOS pipe 6, and the drain electrode connection of the 5th N-channel MOS pipe Q5 is outer
Portion power voltage supply end, the drain electrode of source electrode the 6th N-channel MOS pipe 6 of connection of the 5th N-channel MOS pipe Q5, one end of third inductance L3
It is grounded with the source electrode of the 6th output end of the second buck DC-DC controller U2, the 6th N-channel MOS pipe 6, the third inductance
The other end connection ATX interfaces of L3 are grounded also by third capacitance C3.
Since the load current of 5V and 3.3V are smaller, the second buck DC-DC controller U2 can be used a piece of
LM2642 controllers are realized, generate the output of 5V and 3.3V simultaneously by the second buck DC-DC controller U2.Specifically, should
The VIN of LM2642 chips terminates external voltage, the ends PGOOD1 link control module 3, and the ends HDRV1 connect third N-channel MOS pipe Q3
Grid, the ends LDRV1 connect the 4th N-channel MOS pipe Q4 grid, the ends SW1 be the second buck DC-DC controller U2 third
Output end, the ends HDRV2 connect the grid of the 5th N-channel MOS pipe Q5, and the ends LDRV2 connect the grid of the 6th N-channel MOS pipe 6, SW2
End is the third output end of the second buck DC-DC controller U2.Correspondingly, the 2nd DC-DC converting units can also use it
Its DC-DC reducing transformers realization, the invention is not limited in this regard.
Referring to Fig. 8, in the direct current ATX power supplys of the support various input voltage of the present invention, the switch unit includes MOS
Switch control chip U3, the ends the V+ connection external voltage feeder ear and the first N-channel MOS pipe of the MOS switch control chip U3
Drain electrode, the ends Source that MOS switch controls chip U3 connect the source electrode of the first N-channel MOS pipe, and MOS switch controls chip U3
The ends Gate connect the grid of the first N-channel MOS pipe, the ends Input that MOS switch controls chip U3 connect control unit.
When it is implemented, N-channel MOS FET controller chip can be used in switch unit, using the MIC50 of MICREL companies
Series MOS switch chip, such as MICREL companies MIC5014, MIC5015 chip.By taking MIC5014 as an example, control module 3
When detecting that external input voltage is near 12V, DC-DC conversion modules are shut off, [external low of DC-DC conversion modules at this time
Position N-channel MOS FET (such as the second NMOS tube) is closed naturally], go opening buck DC-DC controller external by MIC5014
High-order N-channel MOS FET (such as the first NMOS tube) makes input voltage (12V) electric through to first by high-order N-channel MOS FET
The left side of L1 is felt, then by output on the right of the first inductance L1, to achieve the purpose that input voltage (12V) leads directly to output end.
Conversely, if control module detects that input voltage is higher than 12V (such as voltage of 16V or more), control module turns on DC-DC and turns
Block is changed the mold, MIC5014 is closed, DC-DC conversion modules is allowed to work, input voltage is accordingly transformed into 12V, 5V, 3.3V output.
In order to better understand the present invention, below in conjunction with Fig. 9 to the direct current ATX electricity of the support various input voltage of the present invention
The working method in source is described in detail：
When computer motherboard detects starting-up signal, the control module 3 detects whether input voltage VIN is 12V, such as
Fruit is the DC-DC controllers (i.e. the first buck DC-DC controller) for being closing generation 12V, while controlling first switch unit
Unlatching makes the first N-channel MOS pipe, makes external 12V voltages directly by output to ATX interfaces 2, when control module 3 detect it is defeated
When to enter voltage VIN not be 12V, first switch unit is made to close, while the first buck DC-DC controller being made to open, external electrical
Pressure is after the decompression of the first buck DC-DC controller in output to ATX interfaces 2.
The present invention has been compatible with 12V power supply adaptors and 16V or more power supply adaptors (such as 19V, 24V), for 5V and
For the buck DC-DC controller of 3.3V, either 12V or 16V or more is inputted, and is all that decompression generates 5V or 3.3V,
So without detection input voltage, for 12V this all the way for buck DC-DC controller, when input voltage is 16V or more
When, decompression can be used, and when input voltage is 12v, buck DC-DC circuit does not work, voltage-dropping type DC-
DC circuit requirement input voltages are higher than output voltage, general that input is required to be higher than 16V for output voltage is 12V.
In conclusion the present invention realizes in the direct current ATX power supplys for supporting various input voltage, a kind of circuit control is proposed
Technology processed so that direct current ATX power supplys can support 12V voltages and the power input of 16V or more simultaneously, increase direct current ATX
Power supply solves the danger brought when above-mentioned 1st class direct current ATX power supplys are inputted using high voltage to the selectivity of input voltage
Danger.
It, can according to the technique and scheme of the present invention and its hair it is understood that for those of ordinary skills
Bright design is subject to equivalent substitution or change, and all these changes or replacement should all belong to the guarantor of appended claims of the invention
Protect range.
Claims (8)
1. a kind of direct current ATX power supplys for supporting various input voltage, including ATX interfaces, which is characterized in that further include control module
With DC-DC conversion modules, the control module is for detecting externally input input voltage, and by input voltage and predeterminated voltage
Compare, when input voltage is higher than predeterminated voltage, DC-DC conversion modules is made to open, controls DC-DC conversion modules by input voltage
It is depressurized to each operating voltage needed for direct current ATX power supplys；When input voltage is equal to predeterminated voltage, DC-DC conversion modules are controlled
It closes, external input voltage is made to be directly output to ATX interfaces.
2. the direct current ATX power supplys according to claim 1 for supporting various input voltage, which is characterized in that the control mould
Block includes control unit and switch unit, and described control unit detects externally input input voltage, and by input voltage and in advance
If voltage compares, when input voltage is higher or lower than predeterminated voltage, DC-DC conversion modules are made to open, switch unit is closed, control
Input voltage is depressurized to each operating voltage needed for ATX power supplys by DC-DC conversion modules processed；When input voltage is equal to predeterminated voltage
When, so that DC-DC conversion modules is closed, switch unit unlatching, external input voltage is made to be directly output to ATX interfaces.
3. the direct current ATX power supplys according to claim 2 for supporting various input voltage, which is characterized in that the DC-DC turns
Mold changing block includes for converting input voltage into the first DC-DC converting units that 12V voltages power to computer motherboard, being used for
Convert input voltage into the 2nd DC-DC converting units that 5V voltages and 3.3V voltages are powered to computer motherboard, the first DC-DC
The other end at one end link control module of converting unit and externally fed end, the first DC-DC converting units connects ATX interfaces,
One end link control module of 2nd DC-DC converting units and externally fed end, the other end connection of the 2nd DC-DC converting units
ATX interfaces.
4. the direct current ATX power supplys according to claim 3 for supporting various input voltage, which is characterized in that the first DC-
DC converting units include：First buck DC-DC controller, the first N-channel MOS pipe, the second N-channel MOS pipe, the first inductance and
The input terminal of first capacitance, the first buck DC-DC controller connects control unit, the first buck DC-DC controller
The first output end connect the grid of the first N-channel MOS pipe, the second output terminal connection the of the first buck DC-DC controller
The drain electrode of the grid of two N-channel MOS pipes, the first N-channel MOS pipe connects external voltage feeder ear, the source of the first N-channel MOS pipe
Pole connect the drain electrode of the second N-channel MOS pipe, the first inductance one end and the first buck DC-DC controller third output end,
The source electrode of second N-channel MOS pipe is grounded, other end connection ATX interfaces of first inductance, also by the first capacity earth,
The grid that first N links up metal-oxide-semiconductor is also connected with switch unit.
5. the direct current ATX power supplys according to claim 3 for supporting various input voltage, which is characterized in that the 2nd DC-
DC converting units include：Second buck DC-DC controller, third N-channel MOS pipe, the 4th N-channel MOS pipe, the 5th N-channel
Metal-oxide-semiconductor, the 6th N-channel MOS pipe, the second inductance, third inductance, the second capacitance and third capacitance；
The input terminal connection control unit of the second buck DC-DC controller, the first of the second buck DC-DC controller
Output end connects the grid of third N-channel MOS pipe, and the second output terminal of buck DC-DC controller connects the 4th N-channel MOS
The drain electrode of the grid of pipe, third N-channel MOS pipe connects external voltage feeder ear, and the source electrode of third N-channel MOS pipe connects the 4th N
The drain electrode of channel MOS tube, one end of the second inductance and the second buck DC-DC controller third output end, the 4th N-channel
The source electrode of metal-oxide-semiconductor is grounded, and the other end of second inductance connects ATX interfaces, also by the second capacity earth；
4th output end of the second buck DC-DC controller connects the grid of the 5th N-channel MOS pipe, buck DC-DC control
5th output end of device connects the grid of the 6th N-channel MOS pipe, the drain electrode connection external voltage power supply of the 5th N-channel MOS pipe
The source electrode at end, the 5th N-channel MOS pipe connects the drain electrode of the 6th N-channel MOS pipe, one end of third inductance and the second voltage-dropping type DC-
The other end connection ATX of 6th output end of DC controllers, the source electrode ground connection of the 6th N-channel MOS pipe, the third inductance connects
Mouthful, also by third capacity earth.
6. the direct current ATX power supplys according to claim 4 for supporting various input voltage, which is characterized in that the switch is single
Member includes that MOS switch controls chip, the ends the V+ connection external voltage feeder ear and the first N-channel of the MOS switch control chip
The drain electrode of metal-oxide-semiconductor, MOS switch control the source electrode of the first N-channel MOS pipe of the ends Source connection of chip, and MOS switch controls chip
The ends Gate connect the first N-channel MOS pipe grid, MOS switch control chip the ends Input connect control unit.
7. the direct current ATX power supplys according to claim 5 for supporting various input voltage, which is characterized in that first drop
Die mould DC-DC controllers, the second buck DC-DC controller are all made of the DC-DC controllers of LM2642.
8. the direct current ATX power supplys according to claim 6 for supporting various input voltage, which is characterized in that the MOS switch
Control MOS switch chip of the chip using the MIC50 series of MICREL companies.
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| CN201810127359.3A CN108566082B (en) | 2018-02-08 | 2018-02-08 | Direct-current ATX power supply supporting multiple input voltages |
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| CN201810127359.3A CN108566082B (en) | 2018-02-08 | 2018-02-08 | Direct-current ATX power supply supporting multiple input voltages |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109546872A (en) * | 2019-01-22 | 2019-03-29 | 东莞育嘉电子有限公司 | The power-supply system that parallel connection superposition can infinitely expand |
| CN110442223A (en) * | 2019-08-16 | 2019-11-12 | 广东浪潮大数据研究有限公司 | Method for controlling power supply and system |
| WO2020113677A1 (en) * | 2018-12-06 | 2020-06-11 | 深圳市华星光电半导体显示技术有限公司 | Display panel driving device |
| CN111384840A (en) * | 2019-11-18 | 2020-07-07 | 浙江凯耀照明有限责任公司 | Desk lamp power supply management circuit compatible with multiple voltage supplies and control method |
| CN114142721A (en) * | 2021-10-28 | 2022-03-04 | 南京爱奇艺智能科技有限公司 | VR controller power processing apparatus, electronic equipment |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2510913Y (en) * | 2001-07-31 | 2002-09-11 | 陈德福 | Multifunctional power source supplier |
| US20060017494A1 (en) * | 2004-07-26 | 2006-01-26 | Masashi Horiguchi | Semiconductor integrated circuit device |
| CN1835367A (en) * | 2006-02-22 | 2006-09-20 | 威盛电子股份有限公司 | D.C. voltage switching module and relative d.c switching system |
| EP1988659A1 (en) * | 2007-05-04 | 2008-11-05 | Broadcom Corporation | Unified powered device (PD) and LAN on motherboard (LOM) controller for a personal computing device (PC) in a Power over Ethernet system. |
| CN201635925U (en) * | 2009-08-06 | 2010-11-17 | 中山市索依纳电子科技有限公司 | Wind-solar hybrid control system |
| CN101963824A (en) * | 2009-07-23 | 2011-02-02 | 韩国电子通信研究院 | Rack-mount computer |
| CN203191920U (en) * | 2013-03-05 | 2013-09-11 | 深圳市祈飞科技有限公司 | Main board power supply |
| CN104539207A (en) * | 2015-01-20 | 2015-04-22 | 马文远 | Electronic voltage-stabilization regulator and system and automobile provided with electronic voltage-stabilization regulator |
| CN206743466U (en) * | 2017-04-14 | 2017-12-12 | 深圳创维数字技术有限公司 | A kind of voltage adaptive power supply circuit and set top box |
| CN206759147U (en) * | 2017-03-23 | 2017-12-15 | 广州视源电子科技股份有限公司 | Power supply switch circuit and power circuit |
-
2018
- 2018-02-08 CN CN201810127359.3A patent/CN108566082B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2510913Y (en) * | 2001-07-31 | 2002-09-11 | 陈德福 | Multifunctional power source supplier |
| US20060017494A1 (en) * | 2004-07-26 | 2006-01-26 | Masashi Horiguchi | Semiconductor integrated circuit device |
| CN1835367A (en) * | 2006-02-22 | 2006-09-20 | 威盛电子股份有限公司 | D.C. voltage switching module and relative d.c switching system |
| EP1988659A1 (en) * | 2007-05-04 | 2008-11-05 | Broadcom Corporation | Unified powered device (PD) and LAN on motherboard (LOM) controller for a personal computing device (PC) in a Power over Ethernet system. |
| CN101963824A (en) * | 2009-07-23 | 2011-02-02 | 韩国电子通信研究院 | Rack-mount computer |
| CN201635925U (en) * | 2009-08-06 | 2010-11-17 | 中山市索依纳电子科技有限公司 | Wind-solar hybrid control system |
| CN203191920U (en) * | 2013-03-05 | 2013-09-11 | 深圳市祈飞科技有限公司 | Main board power supply |
| CN104539207A (en) * | 2015-01-20 | 2015-04-22 | 马文远 | Electronic voltage-stabilization regulator and system and automobile provided with electronic voltage-stabilization regulator |
| CN206759147U (en) * | 2017-03-23 | 2017-12-15 | 广州视源电子科技股份有限公司 | Power supply switch circuit and power circuit |
| CN206743466U (en) * | 2017-04-14 | 2017-12-12 | 深圳创维数字技术有限公司 | A kind of voltage adaptive power supply circuit and set top box |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020113677A1 (en) * | 2018-12-06 | 2020-06-11 | 深圳市华星光电半导体显示技术有限公司 | Display panel driving device |
| CN109546872A (en) * | 2019-01-22 | 2019-03-29 | 东莞育嘉电子有限公司 | The power-supply system that parallel connection superposition can infinitely expand |
| CN109546872B (en) * | 2019-01-22 | 2023-09-15 | 东莞育嘉电子有限公司 | Power supply system capable of being infinitely extended through parallel superposition |
| CN110442223A (en) * | 2019-08-16 | 2019-11-12 | 广东浪潮大数据研究有限公司 | Method for controlling power supply and system |
| CN111384840A (en) * | 2019-11-18 | 2020-07-07 | 浙江凯耀照明有限责任公司 | Desk lamp power supply management circuit compatible with multiple voltage supplies and control method |
| CN111384840B (en) * | 2019-11-18 | 2022-03-11 | 浙江凯耀照明有限责任公司 | Desk lamp power supply management circuit compatible with multiple voltage supplies and control method |
| CN114142721A (en) * | 2021-10-28 | 2022-03-04 | 南京爱奇艺智能科技有限公司 | VR controller power processing apparatus, electronic equipment |
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|---|---|
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