CN201307827Y - Multi-voltage supplied power supplier - Google Patents
Multi-voltage supplied power supplier Download PDFInfo
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- CN201307827Y CN201307827Y CNU200820176358XU CN200820176358U CN201307827Y CN 201307827 Y CN201307827 Y CN 201307827Y CN U200820176358X U CNU200820176358X U CN U200820176358XU CN 200820176358 U CN200820176358 U CN 200820176358U CN 201307827 Y CN201307827 Y CN 201307827Y
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- 230000001131 transforming effect Effects 0.000 abstract 2
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- 238000004134 energy conservation Methods 0.000 description 2
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Abstract
The utility model is a multi-voltage supplied power supplier, comprising a transformer which connects a AC power supply and regulates a transforming power, a rectification output circuit which is connected with the transformer and rectifies the transforming power into a first DC power output, and at least a voltage regulation circuit which obtains and regulates the first DC power to the second DC power from the first DC power output line. The first DC power on the first DC power output line reaches a first voltage level through a boost time. A delay unit is arranged at the rear end of the rectification output circuit, which adds a delay time to the boost time so as to delay the time of the first DC power reaching the first voltage level, therefore the time difference between the first voltage and the second voltage is regulated. The utility model can regulate the time difference between the first voltage and the second voltage DC power, which can prevent the influence of normal startup or shutdown of a host computer.
Description
Technical field
The utility model relates to the power supply unit of a kind of multivoltage supply, particularly relates to a kind of power supply unit of adjusting the multivoltage supply of different output voltage pressure rising time.
Background technology
The specification that computer system is at present general adopts ATX (Advanced TechnologyExtended) mainboard framework, compared to traditional AT (Advanced Technology) mainboard framework, the characteristics of ATX framework maximum have been to increase the normality supply electric power of 5VSB and have classified 3.3V as standard supply voltage.For supplying the ATX motherboard suitable power supply, power supply unit must possess corresponding electric power fan-out capability, comprises output voltages such as 3.3V, 5V, 12V.
Tradition meets the direct current that the power supply unit of ATX framework utilizes the transformer of AC-DC conversion (AC/DC) directly to produce different voltages and is supplied to the ATX mainboard to use.Yet the direct current power energy conversion efficiency that utilizes AC-DC conversion to go out is not good, does not meet energy-conservation trend at present, and the direct current power instability of output, influences the operate as normal of mainboard unavoidably.Therefore, industry develops then and voltage-regulation module (Voltage Regulator Module, technology VRM).Alternating current-direct current transformer in the power supply unit is only exported the direct current power of 12V, and sets up this VRM circuit in this transformer rear end, makes this 12V direct current power utilize direct current the mode of direct current conversion (DC/DC) to be produced the DC circuit of 5V or 3.3V.Direct current obviously is better than exchanging to direct current conversion (AC/DC) to the energy conversion efficiency of direct current conversion (DC/DC), is therefore effectively used the energy to reach energy-conservation effect.In addition, direct current can also provide more stable low voltage and direct current power to the mode of direct current conversion, helps the stability of mainboard normal operation.
Yet, adopt the power supply unit of VRM circuit, though can promote energy conversion rate, between output 12V and 5V/3.3V, exist the gap on the sequential.As shown in Figure 6, the process of boosting with 12V and 5V direct current power is an example, promptly reach the voltage location of 12V in the t1 time, and just can reach the voltage location of 5V, that is to say the direct current power that on t1 and t2 different time points, to supply 12V and 5V voltage respectively in the t2 time.Under general open state, whether the ATX motherboard can be detected the electric power that power supply unit provides normal, and can cause erroneous judgement in the motherboard detecting apart from the existence of (t2-t1) when causing between the different voltage dc power, make that computer system can't normal boot-strap.
This shows that above-mentioned existing power supply unit obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of power supply unit of multivoltage supply of new structure, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Because the defective that above-mentioned existing power supply unit exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, power supply unit in the hope of the multivoltage supply of founding a kind of new structure, can improve general existing power supply unit, make it have more practicality.Through constantly research, design, and, create the utility model that has practical value finally through after studying sample and improvement repeatedly.
Summary of the invention
Main purpose of the present utility model is, overcome the defective that existing power supply unit exists, and the power supply unit that the multivoltage that a kind of new structure is provided is supplied, technical problem to be solved is to make it export time of delay between the different voltage dc power, avoid because detecting during power supply erroneous judgement and can't normal boot-strap, be very suitable for practicality.
The purpose of this utility model and to solve its technical problem be to adopt following technical scheme to realize.According to the power supply unit of a kind of multivoltage supply that the utility model proposes, it comprises: a transformer, and it connects AC power and pressure regulation goes out a transformation electric power; One rectifying output circuit, it connects this transformer and this transformation electric power of rectification is the output of one first direct current power; And at least one voltage regulator circuit, it is obtained this first direct current power and is adjusted to second direct current power on the first direct current power outlet line, first direct current power on this first direct current power outlet line is through arriving one first voltage level a pressure rising time, this rectifying output circuit rear end is provided with a delay cell, this delay cell adds in this pressure rising time and is delayed the time that this first direct current power reaches this first voltage level a time of delay, adjusts the time difference of output DC power between this first voltage and this second voltage by this.
The purpose of this utility model and solve its technical problem and can also be further achieved by the following technical measures.
The power supply unit of aforesaid multivoltage supply, wherein said delay cell comprise a delay resistance that is parallel to this first direct current power outlet line, and one postpones electric capacity, and a diode that is positioned on this first direct current power outlet line.
The power supply unit of aforesaid multivoltage supply has a voltage stabilizing circuit between wherein said rectifying output circuit and this delay cell.
The power supply unit of aforesaid multivoltage supply, wherein said voltage regulator circuit is connected in this voltage stabilizing circuit to obtain this first direct current power.
The power supply unit of aforesaid multivoltage supply, wherein said voltage regulator circuit is a direct current reduction voltage circuit.
By technique scheme, the power supply unit of the utility model multivoltage supply has following advantage and beneficial effect at least:
1, when adopting the VRM technology, carries out the generation of low voltage and direct current power, promoted the stability of energy conversion efficiency and direct current supply.
2, the utility model is adjusted the time difference that this first direct current power and this second direct current power reach this first voltage and second voltage respectively, and contingent erroneous judgement situation when avoiding the supply of mainboard detecting power supply is with driving host plate normal boot-strap.
In sum, the utility model has obvious improvement technically, and has tangible good effect, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the circuit framework block diagram of power supply unit one preferred embodiment of the utility model multivoltage supply.
Fig. 2 is the enforcement circuit diagram of power supply unit one preferred embodiment of the utility model multivoltage supply.
Fig. 3 is the power supply unit one preferred embodiment output 12V of the utility model multivoltage supply and the sequential schematic diagram of 5V direct current power.
Fig. 4 is the sequential schematic diagram that the power supply unit of the utility model multivoltage supply is exported 12V and 5V direct current power synchronously.
Fig. 5 is the sequential schematic diagram that the power supply unit output 12V direct current power of the utility model multivoltage supply is later than the 5V direct current power.
Fig. 6 is the sequential schematic diagram that power supply unit is exported 12V and 5V direct current power under the known VRM technology
Embodiment
For further setting forth the utility model is to reach technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to its embodiment of power supply unit, structure, feature and effect thereof according to the supply of the multivoltage that the utility model proposes, describe in detail as after.
Relevant aforementioned and other technology contents, characteristics and effect of the present utility model can clearly present in the following detailed description that cooperates with reference to graphic preferred embodiment.Explanation by embodiment, when can being to reach technological means that predetermined purpose takes and effect to get one more deeply and concrete understanding to the utility model, yet appended graphic only provide with reference to the usefulness of explanation, be not to be used for the utility model is limited.
Seeing also shown in Figure 1ly, is the circuit framework block diagram of power supply unit one preferred embodiment of the utility model multivoltage supply.As shown in the figure, the utility model is a kind of power supply unit of multivoltage supply, it includes and is connected in the transformer 21 that AC power 10 and pressure regulation go out transformation electric power, connecting this transformer 21 and this transformation electric power of rectification is a rectifying output circuit 22 of one first direct current power, 241 outputs, and obtains this first direct current power 241 and be adjusted at least one voltage regulator circuit 23 of second direct current power 231 on this first direct current power outlet line 24.Be provided with a delay cell 25 in these rectifying output circuit 22 rear ends, adjust the time that first direct current power 241 that is positioned on this first direct current power outlet line 24 boosts to one first voltage level.
Seeing also shown in Figure 2ly, is the enforcement circuit diagram of power supply unit one preferred embodiment of the utility model multivoltage supply.As shown in the figure, in the present embodiment, this AC power 10 is the civil power of an output AC electric power, after transformer 21 in the utility model power supply unit becomes the transformation electric power of suitable operating voltage with this alternating electromotive force pressure regulation, be a 12V direct current power (first direct current power 241) by a rectifying output circuit 22 with this AC transformation power conversions again.Yet, first direct current power 241 that is produced by this rectifying output circuit 22 is not the direct current power of a burning voltage, be fit to the needed stable DC electric power of power supply unit rear end electronic load for producing, on this first direct current power outlet line 24, have a voltage stabilizing circuit 26.On the other hand, in order to carry out direct current one voltage regulator circuit 23 of direct current conversion is coupled to this voltage stabilizing circuit 26, to obtain this first direct current power 241 and then to be converted to second direct current power 231, this second direct current power 231 is an example with the 5V direct current power, but not as qualification.
See also shown in Figure 6ly, as seen from the figure, the time t2 that this second direct current power 231 reaches the 5V voltage level obviously is later than time (the being also referred to as pressure rising time) t1 that this first direct current power 241 reaches the 12V voltage level.Therefore, in the utility model, these voltage stabilizing circuit 26 rear ends more have additional a delay cell 25, this delay cell 25 includes a delay resistance 251 and one that is parallel to this first direct current power outlet line 24 and postpones electric capacity 252, and a diode 253 that is positioned on this first direct current power outlet line 24.Flow into first direct current power, the 241 increases TD one time of delay of this delay cell 25, just can reach first voltage level of 12V voltage level, as shown in Figure 3.That is to say that this first direct current power 241 must could be exported the 12V voltage level after the time of t1+TD.This time of delay, the setting up of TD adjusted the time difference that this first direct current power 241 and this second direct current power 231 reach first voltage level and second voltage level respectively.Thus, can not cause motherboard when carrying out electric power detecting, the situation of erroneous judgement take place, and then make the computer system normal boot-strap.
In the above-described embodiments, this is exported time that this first direct current power 241 reaches this first voltage level and still reaches time of this second voltage level early than this second direct current power 231 of output, and this only is one to implement aspect.The utility model can be adjusted the length of TD time of delay, and then change the time that first direct current power 241 reaches 12V by the delay electric capacity 252 of selecting different capacitances (capacitance).For example increase the capacitance of this delay electric capacity 252 and increase this time of delay of TD, the time that makes this first direct current power 241 reach this first voltage level is later than the time that this second direct current power 231 reaches this second voltage level, as shown in Figure 5.Perhaps, can make this first direct current power 241 reach this first voltage level and second voltage level synchronously, as shown in Figure 4 by trickleer adjustment with this second direct current power 231.
In sum, the power supply unit of the utility model multivoltage supply is adjusted the time difference between the different voltages of output in the power supply unit that uses the VRM technology, when avoiding computer system boot-strap, motherboard carries out the erroneous judgement situation that power supply supply detecting may cause, and makes that computer system can't normal boot-strap.Therefore, the utility model is expanded the realization that the VRM technology is applied to power supply unit, except promoting power supply unit energy service efficiency, also can provide rear end load stable DC electric power.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art are not in breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.
Claims (5)
1, a kind of power supply unit of multivoltage supply, it comprises: a transformer (21), it connects AC power (10) and pressure regulation goes out a transformation electric power; One rectifying output circuit (22), it connects this transformer (21) and this transformation electric power of rectification is the output of one first direct current power (241); And at least one voltage regulator circuit (23), it is obtained this first direct current power (241) and is adjusted to second direct current power (231) on the first direct current power outlet line (24), first direct current power (241) on this first direct current power outlet line (24) is characterized in that through arriving one first voltage level a pressure rising time:
This rectifying output circuit (22) rear end is provided with a delay cell (25), this delay cell (25) adds in this pressure rising time and is delayed the time that this first direct current power (241) reaches this first voltage level a time of delay, adjusts the time difference of output DC power between this first voltage and this second voltage by this.
2, the power supply unit of multivoltage supply according to claim 1, it is characterized in that wherein said delay cell (25) comprises a delay resistance (251) that is parallel to this first direct current power outlet line (24), one postpones electric capacity (252), and a diode (253) that is positioned on this first direct current power outlet line (24).
3, the power supply unit of multivoltage supply according to claim 1 and 2 is characterized in that having a voltage stabilizing circuit (26) between wherein said rectifying output circuit (22) and this delay cell (25).
4, the power supply unit of multivoltage supply according to claim 3 is characterized in that wherein said voltage regulator circuit (23) is connected in this voltage stabilizing circuit (26) to obtain this first direct current power (241).
5, the power supply unit of multivoltage supply according to claim 1 is characterized in that wherein said voltage regulator circuit (23) is a direct current reduction voltage circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820176358XU CN201307827Y (en) | 2008-11-04 | 2008-11-04 | Multi-voltage supplied power supplier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820176358XU CN201307827Y (en) | 2008-11-04 | 2008-11-04 | Multi-voltage supplied power supplier |
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| Publication Number | Publication Date |
|---|---|
| CN201307827Y true CN201307827Y (en) | 2009-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820176358XU Expired - Lifetime CN201307827Y (en) | 2008-11-04 | 2008-11-04 | Multi-voltage supplied power supplier |
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| CN (1) | CN201307827Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104025442A (en) * | 2011-09-25 | 2014-09-03 | 伊利诺斯工具制品有限公司 | A multi-voltage power supply for a universal airplane ground support equipment cart |
-
2008
- 2008-11-04 CN CNU200820176358XU patent/CN201307827Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104025442A (en) * | 2011-09-25 | 2014-09-03 | 伊利诺斯工具制品有限公司 | A multi-voltage power supply for a universal airplane ground support equipment cart |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090909 |