CN2572644Y

CN2572644Y - ATX power source having UPS function

Info

Publication number: CN2572644Y
Application number: CN 02207886
Authority: CN
Inventors: 方云环; 许陵
Original assignee: ZHANGZHOU HAIXIA SCIENCE AND TECHNOLOGY IND Co Ltd
Current assignee: ZHANGZHOU HAIXIA SCIENCE AND TECHNOLOGY IND Co Ltd
Priority date: 2002-03-14
Filing date: 2002-03-14
Publication date: 2003-09-10
Anticipated expiration: 2012-03-14

Abstract

The utility model provides a novel ATX power supply. Except that the functional parts of an ordinary ATX power supply and the functional circuits of an ordinary UPS power supply, the utility model is also provided with a DC/DC switching circuit, charging batteries of which provide directly direct current for a computer. Therefore, when the mains supply fails abruptly, the utility model can be quickly switched to an auxiliary power supply without little delay and provide power supply support, and thus the loss of computer data is effectively avoided. The utility model can also combine an AC/DC switching circuit, a DC/AC switching circuit and the DC/DC switching circuit into a two-way conversion circuit so that the circuit is simpler and the reliability is higher.

Description

The ATX power supply that contains the UPS function

The utility model relates to a kind of main frame power supply (being the ATX power supply), specifically, is when civil power interrupts, and has the ATX power supply that postpones power-off protection function.

At present, what main frame power supply on the market used is known ATX power supply, in the user uses a computer process, if civil power interrupts suddenly, tend to cause computer data to lose, sometimes even cause computer system paralysis, cause a large amount of critical datas to lose and destroy.The user who has can dispose uninterrupted power supply (being ups power) usually in addition in order in time to store data and protection computer system when civil power interrupts.But because the ATX power supply separates with ups power, independent separately, make troubles for the computer user in installation and use like this, and cause easily and normally adopt switch to switch between the instability that connects between ATX power supply and the ups power and ATX power supply and the ups power, work as handoff delay like this and surpass 10ms, just make easily to restart the computer, and cause the computer data of not preserving to lose.

The purpose of this utility model is to provide a kind of new A TX power supply, and it combines ATX power supply and ups power together.When civil power interrupted suddenly, it did not switch to accessory power supply with promptly having time-delay substantially, and the power supply support is provided, and effectively avoids losing of computer data.

The purpose of this utility model is achieved in that it comprises: filtering that general ATX power supply is had and bridge rectifier part, AC/DC translation circuit, voltage stabilizing circuit, major loop control and PC control section and accessory power supply part; The charging circuit of general rechargeable battery that ups power has, DC/AC inverter circuit, battery.It also has rechargeable battery in addition directly provides galvanic DC/DC commutation circuit to computer.

Wherein the AC/DC translation circuit of ATX power supply is made of one group of winding diminishing coil and four groups of loading coils; The DC/AC inverter circuit is made up of two groups of dc coils and one group of step-up coil; The DC/DC commutation circuit is made of two groups of dc coils and four groups of loading coils.

For conserve space and simplification circuit, AC/DC, DC/AC and DC/DC commutation circuit can be fused into the two-way changing circuit.

Because the utility model has increased the function of UPS in the ATX power supply, when civil power interrupted, it can obtain the electric power support from boosting battery rapidly like this, thereby guaranteed that computer data can not lose; Adopt DC/DC to switch directly and use for main frame, only part is used for display by being reverse into alternating current, has improved the service efficiency of electric power greatly and has shortened the electric current switching time, effectively reduces the possibility that restarts.Because the utility model is fused into one group of two-way changing circuit with AC/DC, DC/AC and DC/DC commutation circuit, thereby structure is compact more, and installation and maintenance are easier.

Fig. 1 is a theory diagram of the present utility model;

Principle schematic when Fig. 2 interrupts for the utility model civil power;

Fig. 3 is a two-way changing circuit theory schematic diagram of the present utility model;

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail:

As shown in Figure 1, under the civil power normal condition, start computer, civil power is the required various voltages of difference output loading after step-down, voltage stabilizing by AC/DC translation circuit 2 and voltage stabilizing circuit 3.Simultaneously, civil power is also after filtering, rectification, be transported to ATX accessory power supply part 4, ATX accessory power supply part 4 is exported two groups of stand-by power supplies by original function on the one hand and is used for computer, on the other hand, constant-current constant-voltage charging circuit 6 through UPS use usually charges to rechargeable battery 5, and rechargeable battery 5 can be selected from lithium battery, Ni-MH battery and nickel-cadmium cell.

As shown in Figure 1 and Figure 2; under city's electrical anomaly or powering-off state; externally fed stops; the pin 10 that IC1 is connected with the major loop control circuit is low level, and the IC1 starting is alternately exported square wave by its pin 11,14; drive

field effect transistor

7,8 work of joining with it; the direct current that provides of rechargeable battery 5 is through

field effect transistor

7,8 vibration, by DC/DC commutation circuit 9 and voltage stabilizing circuit 3 boost, required various voltages of output loading respectively after the voltage stabilizing, offer main frame and use.On the other hand, the direct current that rechargeable battery 5 provides boosts through DC/AC inverter circuit 12 after

field effect transistor

7,8 vibrations, uses for display.

As shown in Figure 3, two-way changing circuit 13 is made of 7 groups of coils such as coil 15, coil 16, coil 17, coil 18, coil 19, coil 20 and coils 21, wherein coil 15, coil 16, coil 17, coil 18 and coil 19 are had by former ATX power supply, coil 15 is a diminishing coil, links to each other with civil power, display.19 of coil 16, coil 17, coil 18 and coils link to each other with voltage stabilizing circuit and are responsible for providing required voltage to load, and these coils are formed AC/DC circuit 2 jointly; And coil 20 and the coil of coil 21 for increasing newly, their main effect be with coil 16, coil 17, coil 18 and coil 19 together with current boost, the transformation of rechargeable battery 5 direct currents after

field effect transistor

7,8 vibration, provide required voltage through voltage stabilizing circuit to load again, these coils are formed DC/DC commutation circuit 9 jointly; The electric current that coil 16, coil 17, coil 18 and coil 19 also will be after boosting simultaneously, boost by coil 15 once more and use for display, this moment, 15 of coils were as step-up coil, and coil 20, coil 21 and coil 16, coil 17, coil 18, coil 19 and coil 15 are formed DC/AC inverter circuit 12 again jointly like this.Because these seven groups of coils are born the switch operating of AC/DC, DC/DC, DC/AC jointly, promptly form two-way changing circuit 13 jointly.

Claims

1 one kinds of ATX power supplys, comprise filtering and bridge rectifier part, AC/DC translation circuit, voltage stabilizing circuit, major loop control, PC control section and accessory power supply part that general ATX power supply is had, it is characterized in that: it also has rechargeable battery (5), constant-current constant-voltage charging circuit (6), DC/AC inverter circuit (12) and DC/DC commutation circuit (9) simultaneously.

2. ATX power supply according to claim 1 is characterized in that: described AC/DC translation circuit (2), DC/AC inverter circuit (12) and DC/DC commutation circuit (9) are formed two-way changing circuit (13) jointly.

3. ATX power supply according to claim 2 is characterized in that: described two-way changing circuit (13) is made of seven groups of coils such as coil (15), coil (16), coil (17), coil (18), coil (19), coil (20) and coil (21); Wherein:

Coil (15), coil (16), coil (17), coil (18) and coil (19) are formed AC/DC circuit (2);

Coil (20), coil (21) and coil (16), coil (17), coil (18), coil (19) are formed DC/DC commutation circuit (9);

Coil (20), coil (21) and coil (16), coil (17), coil (18), coil (19) and coil (15) are formed DC/AC inverter circuit (12).

4. according to any described ATX power supply of claim 1 to 3, it is characterized in that: described rechargeable battery (5) can be selected from lithium battery, Ni-MH battery and nickel-cadmium cell.