CN1324130A - Built-in computer integrated UPS controlled via microcomputer - Google Patents

Abstract

Computer built-in integrated uniterruption power source controlled by microcomputer consists of: (1) DC high voltage power source which is composed of EMI filter circuit and DC enhancing voltage uninterruption circuit, (2) display power circuit composed by inverting and switching circuit and ATX power source which are connected to output terminal of DC high voltage power source, working power source and alarm circuit supplied by ATX power source and charging circuit of storage battery at same time, working detecting circuit for AC input, bettery energy and ATX and one-chip computer having functions of detection, control, switch and communication. It is a new built-in power supply and protection device integrating switch power source and UPS power source into a whole and having functions of power source supply, reserve, error and data protection.

Description

Micro-processor controlled built-in computer integrated UPS

A kind of micro-processor controlled built-in computer integrated UPS belongs to Power supply for computer and makes the field.

At present the used ATX Switching Power Supply of computer is placed in the cabinet, and uninterrupted power supply then is external, and whole power volume is bigger, and main frame does not have direct current reserve and display does not have interchange reserve yet.

The object of the present invention is to provide and a kind ofly have Switching Power Supply when can directly be built in the computer with the uninterrupted power supply function and can realize the direct current reserve of main frame and the novel power supply that exchanges reserve and the protection equipment of display by micro-processor controlled.

The invention is characterized in: it contains: it is input as the EMI filter circuit that 220V exchanges; Its input XS-AC2, XSAC1 are connected with the same side of EMI filter circuit, and the VB+ end links to each other with the 12V lead acid accumulator, and what the same side of switch control end PC4 and single-chip microcomputer linked to each other boosts and DC uninterrupted circuit; Its power end VH with boost and the 300V high-voltage output end VH of DC uninterrupted circuit links to each other the DC-AC inverter circuit that the same side of switch control end PB0-PB4 and single-chip microcomputer links to each other; The identical output of its input XS-AC2, XS-AC1 and EMI filter circuit links to each other, the square wave output of another input DC-AC1, DC-AC2 and DC-AC inverter circuit links to each other, power end 12VC is by the same side power supply of working power and audible alarm circuit, switching controls end PB5 links to each other with the single-chip microcomputer same side, and output XS-A, XS-B connect the display power supply commutation circuit of display; Its 300V high direct voltage input VH with boost and the same side of DC uninterrupted circuit links to each other, pulse-width signal output VR with boost and the input VR of DC uninterrupted circuit links to each other, the 5V output VCC of dc supply input VCC and working power and audible alarm circuit links to each other, 18V auxiliary power output end VCH links to each other with the power input VCH of working power and audible alarm circuit, its-12V, + 12V, + 5V,-5V, + 3.3V, each power input of each output of+5VSB and computer motherboard links to each other and ATX power supply that its switch control end PS/ON also links to each other with corresponding controling end on the computer motherboard; Its power supply+5V input links to each other with the corresponding output end of ATX power supply, and the ATX operation detection circuit that its detection signal output PD3 links to each other with single-chip microcomputer relevant detection signal input part; Working power and audible alarm circuit that the respective end of its alarm control signal input PD4 and single-chip microcomputer links to each other; It is input as that 220V exchanges and its detection signal output PCO links to each other with the single-chip microcomputer respective input exchanges input detecting circuit; The 12V lead acid accumulator; Its input VB+ links to each other with lead acid accumulator and energy content of battery testing circuit that its detection signal output PC1 links to each other with the corresponding input of single-chip microcomputer; Its charging voltage output VB+ links to each other with the 12V lead acid accumulator, the accessory power supply input link to each other with the 18V auxiliary power output end of ATX power supply and battery charging circuit that the detection signal output links to each other with the single-chip microcomputer respective input with and the single-chip microcomputer that links to each other with computer RS232 serial port of transmitting terminal TXD, receiving terminal RXD.

Use proof: it has reached purpose of design.

For below in conjunction with the embodiments, the present invention is done detailed description, existing as follows: Fig. 1: the schematic block circuit diagram of the integrated UPS of micro-processor controlled built-in computer employed accompanying drawing number of present specification and title brief introduction; Fig. 2; 12V-300V boosts and DC uninterrupted circuit; Fig. 3: DC-AC inverter circuit; Fig. 4: battery charging circuit; Fig. 5: display power supply commutation circuit; Fig. 6: exchange input EMI filter circuit; Fig. 7: 12V working power and audible alarm circuit; Fig. 8: exchange input (power supply) testing circuit; Fig. 9: battery voltage detection circuit; Figure 10: ATX power work testing circuit; Figure 11-Figure 12: ATX Switching Power Supply (1) and (2); Figure 13: inverter circuit sequential working figure; Figure 14: the circuit diagram of single-chip microcomputer 1

Embodiment

Ask for an interview Fig. 1-14.In Fig. 1, the 1st, Chip Microcomputer A VR90S4433; The 2nd, 12V～300V boosts and DC uninterrupted circuit; The 3rd, the DC-AC inverter circuit; The 4th, battery charging circuit; The 5th, the display power supply commutation circuit; The 6th, exchange the anti-electromagnetic interference filter circuit of input EMI; The 7th, 12V working power and audible alarm circuit; The 8th, the alternating current input power supplying testing circuit; The 9th, battery voltage detection circuit; The 10th, ATX power work testing circuit, the 11, the 12nd, ATX Switching Power Supply (1) and (2), their corresponding circuit theory diagrams are seen Fig. 2～Figure 14.

Behind the incoming transport power supply, enter the interchange standby mode.Exchange input detecting circuit 8 and enter operating state; EMI filter circuit 6 boosts and 2 power supplies of DC uninterrupted circuit to 12V-300V, and after boosting, the output of the 300V direct current of this circuit 2 is simultaneously to DC- AC inverter circuit 3,11,12 power supplies of ATX power supply.At this moment, computer off-duty, equipment are in the wait starting state.After the PS/ON of ATX Switching Power Supply 11,12 end is received the starting-up signal of computer motherboard, to start automatically+3.3V, 5V, 12V output, single-chip microcomputer 1 enters AC mode through ATX operation detection circuit 10 after the PD3 end is received the computer booting signal, more than two kinds of patterns, line voltage is all between 190～265V.Beginning is to main frame transmitting apparatus information.Under single-chip microcomputer 1 and main frame connection situation, can carry out data communication each other; Under single-chip microcomputer 1 aggressive mode, it regularly sends the power work situation to main frame, and parameters such as input voltage, cell voltage are provided; Under single-chip microcomputer 1 Passive Mode, by main frame inquiry power supply status, single-chip microcomputer 1 returns above-mentioned voltage parameter, no matter be in which kind of pattern, single-chip microcomputer 1 is when detecting abnormal signal or 12 V lead acid accumulator operating voltages deficiency, send alarm signal through the PD4 end to working power and audible alarm circuit 7 immediately, under AC mode, the PS/ON end of ATX power supply 11,12, can detect automatically and the shutdown command that sends of object computer mainboard, through ATX power work testing circuit 10 off signal is delivered to single-chip microcomputer 1 through the PD3 end, change standby mode automatically over to.When line voltage interrupts, when being lower than 170V or being higher than 265V, exchange input detecting circuit 8 and send switching signal to single-chip microcomputer 1 through the PC0 end, at this moment, single-chip microcomputer 1 boosts and DC uninterrupted circuit 2 sends switching command to 12V～300V through PC4 end, cut off civil power immediately and exchange input, simultaneously starting battery charging circuit 4 through the PC3 end boosts and 12V～300V is boosted and DC uninterrupted circuit 2 changes the storage battery power supply state over to, ATX power supply 11,12 are also powered to 18V accessory power supply end VCH by battery charging circuit 4 simultaneously, simultaneously, working power and audible alarm circuit 7 also switch to the storage battery power supply state, to guarantee that it continues to ATX power supply 11,12 VCC end, the 12VC end power supply of display power supply commutation circuit 4, simultaneously, send audible alarm, and send the back-up source working signal to main frame.Meanwhile single-chip microcomputer 1 starts DC-AC inverter circuit 3 through PB0～PB4 end, enter the inversion work schedule, treat its stable after, through DC～AC1, DC～AC2 end again through display power supply commutation circuit 4 to monitor power supply, this carries out after display power supply commutation circuit 4 is sent enabled instruction through the PB5 end at single-chip microcomputer 1.Enter the 190V-265V effective range in case civil power exchanges, after keeping stablizing 20 seconds, single-chip microcomputer 1 boosts 12V～300V and the power supply of DC uninterrupted circuit 2, display power supply commutation circuit 4 switches to the alternating current circuit through PC4, PB5 end.Close DC-AC inverter circuit 3 through PB0～PB4 end simultaneously, make display power supply commutation circuit 4 recover Alternating Current Power Supply.When computer off-duty and line voltage existed and be lower than 170V or be higher than 265V, single-chip microcomputer 1 was in line voltage monitoring and shutdown detected state.When line voltage is 0, single-chip microcomputer 1 non-transformer supply, equipment is not worked, and computer can't start, and is in " shut " mode".This external back-up source duration of work, single-chip microcomputer 1 is if detect storage battery power supply deficiency, request from forced shutdown to computer motherboard that just can send; the main frame application software is after receiving this request; alarm immediately, and in 30 seconds the log-on data protected mode, force computer shutdown.If single-chip microcomputer 1 does not detect off signal in 90 seconds after sending the forced shutdown request, will carry out the protectiveness shutdown automatically.

This shows that this is a kind of novel power supply that integrates uninterruption power source UPS and ATX Switching Power Supply and protection equipment of built-in computer.Under system controlled by computer; it still is efficient, the small-sized inversion equipment of a cover; realized the reserve that exchanges of the direct current reserve of computer motherboard and display; the more general UPS device of size of entire equipment is greatly reduced; simultaneously also can be under the municipal power failure situation; protection computer and data thereof provide affair alarm, but uninterrupted power supply at least 7 minutes.

Claims (2)

1. a micro-processor controlled built-in computer integrated UPS contains ATX Switching Power Supply and uninterruption power source, it is characterized in that it contains: it is input as the EMI filter circuit that 220V exchanges; Its input XS-AC2, XSAC1 are connected with the same side of EMI filter circuit, and the VB+ end links to each other with the 12V lead acid accumulator, and what the same side of switch control end PC4 and single-chip microcomputer linked to each other boosts and DC uninterrupted circuit; Its power end VH with boost and the 300V high-voltage output end VH of DC uninterrupted circuit links to each other the DC-AC inverter circuit that the same side of switch control end PB0-PB4 and single-chip microcomputer links to each other; The identical output of its input XS-AC2, XS-AC1 and EMI filter circuit links to each other, the square wave output of another input DC-AC1, DC-AC2 and DC-AC inverter circuit links to each other, power end 12VC is by the same side power supply of working power and audible alarm circuit, switching controls end PB5 links to each other with the single-chip microcomputer same side, and output XS-A, XS-B connect the display power supply commutation circuit of display; Its 300V high direct voltage input VH with boost and the same side of DC uninterrupted circuit links to each other, pulse-width signal output VR with boost and the input VR of DC uninterrupted circuit links to each other, the 5V output VCC of dc supply input VCC and working power and audible alarm circuit links to each other, 18V auxiliary power output end VCH links to each other with the power input VCH of working power and audible alarm circuit, its-12V, + 12V, + 5V,-5V, + 3.3V, each power input of each output of+5VSB and computer motherboard links to each other and ATX power supply that its switch control end PS/ON also links to each other with corresponding controling end on the computer motherboard; Its power supply+5V input links to each other with the corresponding output end of ATX power supply, and the ATX operation detection circuit that its detection signal output PD3 links to each other with single-chip microcomputer relevant detection signal input part; Working power and audible alarm circuit that the respective end of its alarm control signal input PD4 and single-chip microcomputer links to each other; It is input as that 220V exchanges and its detection signal output PCO links to each other with the single-chip microcomputer respective input exchanges input detecting circuit; The 12V lead acid accumulator; Its input VB+ links to each other with lead acid accumulator and energy content of battery testing circuit that its detection signal output PC1 links to each other with the corresponding input of single-chip microcomputer; Its charging voltage output VB+ links to each other with the 12V lead acid accumulator, the accessory power supply input link to each other with the 18V auxiliary power output end of ATX power supply and battery charging circuit that the detection signal output links to each other with the single-chip microcomputer respective input with and the single-chip microcomputer that links to each other with computer RS232 serial port of transmitting terminal TXD, receiving terminal RXD.

2. micro-processor controlled built-in computer integrated UPS according to claim 1 is characterized in that: described single-chip microcomputer is the type of AVR90S4433 or function suitable (similar).

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