CN1469222A

CN1469222A - Universal integrated computer power source

Info

Publication number: CN1469222A
Application number: CNA021379777A
Authority: CN
Inventors: 林田; 田林
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-07-19
Filing date: 2002-07-19
Publication date: 2004-01-21

Abstract

The universal integrated computer power source enables the computer to operate after the AC power supply is paused and consists of rectifier circuit, charger circuit, DC-DC circuit connected successively as well as accumulator connected to the output of the charger circuit. The rectifier circuit has input connected to AC power supply, the DC-DC circuit has output connected to power consuming parts inside the computer, and the whole circuit includes one part outside the computer and one other part inside the computer. In case the AC power supply is paused, the accumulator powers the DC-DC circuit for the computer continue working.

Description

Universal integrated computer power source

Affiliated technical field

The present invention relates to a kind of device, can guarantee when the electric main supply is broken down that especially computing machine continues the power supply of operate as normal for computing machine and similar electric power supply.

Background technology

At present, known high-quality computer power supply is adjunction between electric main and computing machine " uninterrupted power source ".Its entire work process is sent electric main earlier in " uninterrupted power source " exactly, through the rectification circuit rectification, charges a battery through charging circuit, becomes accurate electric main to send the dc inverter of accumulator through inverter circuit again, gives computer power supply.When electric main interrupts for some reason, provide inverter circuit required electric energy by the accumulator in " uninterrupted power source ", continue the accurate electric main of output, to keep the operate as normal of computing machine.But in fact, what the computer-internal circuit used is low-voltage DC, " Switching Power Supply " in the computing machine must be transformed into the accurate electric main of electric main or " uninterrupted power source " low-voltage DC to be supplied with interlock circuit and uses, so computer system and do not require that extraneous power supply must be an alternating current.At last need from computing machine, dc inverter with accumulator in comprising the whole power conversion process of " uninterrupted power source " is that this step of alternating current is optional, and this a part of technical requirement is the highest just, circuit is the most complicated, cost is the highest, failure rate is the highest." but uninterrupted power source " originally be a class independently, general product, not only to be used for the computing machine occasion, therefore just very extensive, very strict to its technical requirement, except voltage, frequency, waveform will also require the phase place of output AC electricity to want strict synchronous with civil power in strict conformity with the electric main standard sometimes.This common apparatus is exclusively used in computer power supply, looks from the angle of computing machine electricity consumption, require too much, too high, link is too much, and the cost height is unreasonable.

Summary of the invention

Problems such as the price height that brings in order to overcome existing computer system use " uninterrupted power source ", circuit complexity, failure rate height, the invention provides a kind of universal integrated computer power source, this power supply not only has same effect with using " uninterrupted power source ", but also simplifies and element requires to have reduced production cost, has reduced failure rate, improved the reliability of powering because of principle.

The present invention solves the scheme that its technical matters adopts: comprise rectification circuit, charging circuit, accumulator, DC-DC circuit, adapter circuit, control circuit in the formation of entire circuit; It is characterized in that: electric main AC input end is connected to rectification circuit input end; The output terminal of rectification circuit is connected to the input end of charging circuit; The output terminal one side of charging circuit is connected with accumulator, and one side is connected with the input end of DC-DC circuit; Relevant power circuit such as motherboard connects in the output terminal of DC-DC circuit and the computing machine; The outer part of entire circuit part formation machine, remainder constitutes part in the machine.The input end of adapter circuit links to each other with accumulator, its output terminal links to each other with the computer peripheral power input.Adapter circuit output standby power supply does not use in order to also not possessing the computer peripheral (as display, printer etc.) that uses the low-voltage DC condition.When electric main interrupted, accumulator transferred power supply state to by charged state at once, continued operate as normal to guarantee computing machine.

The invention has the beneficial effects as follows: because cancelled inversion part, be the computer-internal circuit supply directly by accumulator through the DC-DC circuit, therefore except guarantee computing machine in electric main, have no progeny can work on, also have following advantage:

1. the output voltage stabilization of accumulator, pure is the direct supply of high-quality; Directly to the DC-DC circuit supply, the P/C of its power supply quality is than " uninterrupted power source " that be better than having inverter circuit by it;

2. avoided the loss of " uninterrupted power source " inverter circuit, made the accumulator of same capacity when the same load of carrying, can have the longer support time than " uninterrupted power source ";

3. eliminate the audio noise that " uninterrupted power source " inversion partly produces, improved computer user's working environment;

4. fundamentally eliminated the fault that partly produces by the complicated inversion of uninterrupted power source, reduced the harmful effect that computer system is caused because of power issue, help improving the reliability of computer working, help improving user's social benefit and economic benefit;

5. cancel the part that technical requirement is the highest, circuit is the most complicated, cost is the highest, reduced comprehensive production cost greatly, helped improving the economic benefit of manufacturing enterprise.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is the circuit theory diagrams of prior art.A among the figure: " uninterrupted power source "; B: computer system.

Fig. 2 is a whole schematic diagram of the present invention.

Fig. 3 is the circuit theory diagrams of first embodiment of the invention.A among the figure: the outer part of machine; B: part (herewith) in the machine with A, B symbol implication in figure below.

Fig. 4 is the circuit theory diagrams of second embodiment of the invention.

Fig. 5 is the circuit theory diagrams of third embodiment of the invention.

Symbol implication among each figure:

AC: alternating current;

Vc: one group of direct current (for example ± 5 volt, ± 12 volts or the like) of supplying with the computer-internal interlock circuit;

Vp: standby alternating current, give temporarily also not possess the computer peripheral use of using the direct current condition, for example display, printer or the like;

1: rectification circuit;

2: charging circuit;

3: accumulator;

The 4:DC-DC circuit;

5: adapter circuit;

6: control circuit.

As seen, in the process of the present invention from AC to Vc, inversion part of the prior art and secondary rectification, step-down part have been eliminated in rectification for once, step-down.

Embodiment

In each embodiment, difference is which circuit constitutes the outer part of machine in the entire circuit, which circuit constitutes part in the machine each other.

In the embodiment shown in fig. 3, the whole circuit of the present invention include outside the computing machine machine and in the part (A), export one group of direct current (Vc) part (B) in cable is sent into machine at last; Part is supplied with motherboard and the use of each circuit only as deconcentrator with direct current Vc in the machine; The outer part of machine also export standby power supply Vp supply and demand will the time use.

In the embodiment shown in fig. 4, the present invention is made up of part (B) in outer part of machine (A) and the machine.The outer part of machine (A) comprises rectification circuit (1), charging circuit (2) and accumulator (3), and part (B) comprises DC-DC circuit (4), adapter circuit (5) and control circuit (6) in the machine.Electric main AC sends the outer part of machine (A) to, obtains direct current Vb through rectification circuit (1), charging circuit (2); Direct current Vb sends part (B) in the machine to when accumulator (3) is charged.In the part (B), one side is input to DC-DC circuit (4), obtains the required direct current Vc of computing machine direct current Vb in machine, and one side is input to adapter circuit (5), obtains standby power supply Vp and output.For computing machine, the same with prior art convenient in the use, that still send to is low-voltage DC Vb, thereby safer.

In the embodiment shown in fig. 5, the outer part of machine (A) only is an accumulator box, and all the other each several parts are all in machine in the part (B).

In each embodiment, in the machine shape of part (B) shell and size all with shape, the consistent size of active computer interior " Switching Power Supply ", output voltage is also consistent with existing " Switching Power Supply " with mode, so " Switching Power Supply " that the present invention can the present computer-internal of direct substitution and needn't do any change, adjustment to computing machine.

Because at present mechanical dimension, the electric connection of Switching Power Supply all standardizes in the computing machine, thereby the present invention has versatility, is applicable to various computing systems.In actual use, the outer part of machine can connect part in one or more machines, further to reduce the total system's investment of user.

Claims

1. universal integrated computer power source comprises rectification circuit (1), charging circuit (2), accumulator (3), DC-DC circuit (4), adapter circuit (5) in its formation; It is characterized in that: electric main AC input end is connected to rectification circuit (1) input end; The output terminal of rectification circuit (1) is connected to the input end of charging circuit (2); The output terminal one side of charging circuit (2) is connected with accumulator (3), and one side is connected with the input end of DC-DC circuit (4); Relevant power circuit such as motherboard connects in the output terminal of DC-DC circuit (4) and the computing machine; The outer part of entire circuit part formation machine, remainder constitutes part in the machine.

2. universal integrated computer power source according to claim 1 is characterized in that: the input end of adapter circuit (5) links to each other with accumulator (3), the output terminal of adapter circuit (5) links to each other with the computer peripheral power input.