CN1107979A - Uninterruptible power supply system for green computer - Google Patents
Uninterruptible power supply system for green computer Download PDFInfo
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- CN1107979A CN1107979A CN 94102145 CN94102145A CN1107979A CN 1107979 A CN1107979 A CN 1107979A CN 94102145 CN94102145 CN 94102145 CN 94102145 A CN94102145 A CN 94102145A CN 1107979 A CN1107979 A CN 1107979A
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Abstract
The power preserving system for computer is composed of boost circuit, charge controller, accumulator set, output controller, switching circuits, level monitor circuit, float mode executing circuit of computer system and fan controller. The voltage is steped up from 12V to 16V for powering charge controller. When normal output of computer is low, output controller drives switching circuit to work and the level monitor circuit makes float mode executing circuit to run in power saving mode based on voltage level.
Description
The present invention relates to the UPS that a kind of computer is used, especially refer to a kind of power saving and the uninterruptible power supply system for green computer made from callable low contaminative material.
Green computer (GREEN PC) is meant a computer in use, can more traditional computer power saving, it produces the material that uses, and all is recuperable low contaminative material, promptly is called uninterruptible power supply system for green computer (GREECN-UPS) and mate the UPS that uses with green computer.
Why green computer is advocated energetically by international environmental protection organization, is exactly because its power saving and compliance with environmental protection requirements.
Whether whether all UPSs (UPS) all adopt external power (AC) detecting control circuit in order to the detecting civil power at present, interrupt to recognize power supply, stable.If during outage, existing UPS then begins power supply, it is to adopt inverter circuit, direct supply is transformed into the power supply device that AC power is supplied with computer, and the power supply device converts AC power to the direct-current power supply main frame by ac-dc power conversion circuit again, not only the cost height, and employed material has contaminative, employed battery is a lead-acid battery, and the meeting serious environment pollution does not meet environmental requirement.Particularly import power supply through repeatedly conversion, cause loss in efficiency, energy dissipation is big.Now lift an example:
Tradition UPS utilizes AC power to be transformed into direct supply to battery charge, conversion efficiency is 0.8, when outage, must convert the direct supply of battery to AC power, efficient is 0.7, and AC power supply power device also need convert the use of direct-current power supply main frame once more to, efficient is 0.8, so the actual available effective energy of host computer is:
U
Effectively=intake * 0.8 * 0.7 * 0.8
Be U
Effectively=intake * 0.45
This shows that effective energy is actual to have only 0.45 of intake, so loss is very big.
It is low to the purpose of this invention is to provide a kind of cost, the energy conversion efficiency height, and power consumption is low, and is pollution-free, and the uninterruptible power supply system for green computer of compliance with environmental protection requirements is to overcome the shortcoming of prior art.
The technical scheme that the present invention takes is as described below:
It is by booster circuit 1, charging control circuit 2, electric battery 3, output control circuit 4, + 5V change-over circuit 5, + 12V,-12V,-5V change-over circuit 6, battery electric power Auto-Sensing circuit 7, computer system hover mode executive circuit 8 and fan control circuitry 9 are formed, + 12V DC voltage is after booster circuit 1 boosts, output+16V voltage is supplied with charging control circuit 2, and the output of charging control circuit 2 connects electric battery 3, when the normal signal of computer power device output is electronegative potential, output control circuit 4 control transformation circuit 5 and change-over circuit 6 are started working, and being voltage according to electric battery 3, battery electric power Auto-Sensing circuit 7 just decide computer system hover mode executive circuit 8 whether can carry out battery saving mode, charging control circuit 2 is when dynamically charging, and control fan control circuitry 9 is carried out cooling fans and started.
The present invention has adopted intelligent charging circuit, comprising: battery electric power Auto-Sensing circuit 7, computer system hover mode executive circuit 8 and fan control circuitry 9, as shown in Figure 3, it adopts the Ni-MH battery that conforms with environmental protection to design at the present invention.As everyone knows, the efficient of battery charge is relevant with battery temperature, and the battery temperature high recharge efficiency that heals is poorer, and battery is more aging.When battery is sufficient, the battery temperature heating of having risen, if continue charging, battery will accelerated deterioration, even produces a large amount of oxygen, can cause the loss of electrolytic solution, and battery capacity is reduced, so how to prevent that battery from transshipping charges to important.
Compare with traditional UPS, whether uninterruptible power supply system for green computer of the present invention is not detected external power source (AC) and is interrupted, but the power supply device of detecting PC, whether recognize power supply device direct supply (DC) output normal.The dc power output end of PC power supply device, the one PIN is exactly the normal signal of power supply (POWER GOOD), this is the ordered formal specification of IBM PC, when direct supply is exported just often, the power supply device can be sent the normal signal of noble potential that can allow TTL accept, i.e. a noble potential POWER GOOD signal (2.4Vdc to 5.5Vdc).If external power source (AC) interrupts, or the fault of power supply device own, make direct supply output undesired, the power supply device will be sent a normal signal of electronegative potential, be electronegative potential POWER GOOD signal (OVdc to 0.4Vdc), when direct supply output undesired by normally transferring to, at least 1 microsecond before normal direct supply stops output, normal signal will transfer electronegative potential to by noble potential, sees also shown in Figure 1.The present invention promptly is the normal signal that utilizes this to arrive ahead of time, starting UPS begins to provide computer system needed direct supply, transmit a normal signal of noble potential simultaneously and give computer, produce the phenomenon of system break to avoid computer system to receive the normal signal of electronegative potential, at this moment, the present invention can send battery saving mode signal notice, and green computer enters battery saving mode.Because power consumption seldom when green computer entered battery saving mode, make battery electric power can support very long power-on time, if enter battery saving mode, time can surpass the present invention in maximum time that system bios sets, then BIOS can enter data storage pattern (DATA SAVE MODE) automatically, and data storage was returned hard disk drive during computer was carried out.
When power interruption, the present invention is controlled by the hardware that CPU and CHIP SET combine, and cooperates BIOS to carry out, reliability is very high, and general traditional UPS, must be at no application software, design software instrument cooperates, and reliability is just poor a lot.Yet hundred-percent safeguard way has only continued power, the present invention cooperates the cover GREEN PC CHIP SET ALI1429G that beats the world to use, because GREEN PC enters battery saving mode, present power consumption 6.9W, so whole process of the present invention can provide 1.754 hours power supply needs, but the present invention's setting power saving mode on BIOS reaches 1 hour, begins to carry out computer information storage work automatically, satisfies the existing market needs again.More power saving of following GREEN PC, effect of the present invention are just better.During power interruption, GREEN UPS support computer system Time Calculation of the present invention is as follows:
GREEN UPS size of the present invention and 3.5 " FDD is identical, can hold the Ni-MH battery of 7 1.2V1.8AH, i.e. 15.12WH, power supply output conversion efficiency is with 8 one-tenths calculating, and reality is exported 12.096WH.
12.096WH " after the UPS of FDD same size can provide a computer to have a power failure, the reservation data reached 1.7 hours ÷ 6.9W=1.7534 hour, with 3.5.
From the above mentioned, the present invention increases substantially energy conversion efficiency owing to reduced the conversion times of power of alterating and direct current, has significantly reduced environmental pollution, and volume-diminished, and cost reduces.
List the present invention and traditional UPS performance comparison table below.
| Item compared | The present invention | General traditional UPS |
| Application | GREEN PC environmental protection computer | General computer and the instrument that uses alternating current |
| Electric power is supported | 1.75 hour, be example (traditional approximately UPS of support time 7 times) with ALI DESK top GREEN CHIP M1429G | 10 minutes to 15 minutes |
| The mode that stores data | Directly combine execution and store data the reliability height with the CPU CHIP SET of computer and SYSTEM BIOS. | Receive the execution of signal notice computer system by interface card (UPS MANITOR CARD) and store data, reliability is low. |
| Small product size | 155(is dark) * the 25(height) * 101(is wide) the traditional approximately UPS of |
To fly holding MODE20 20,500W UPS is example: 445 (deeply) * 190(height) * and 143(is wide) MM |
| Cost | Cost is very low, about 1100 yuan | Cost is very high |
| Assembling mode | Internal connecting type, the position that is fixed on 3.5 cun disk drives in the computer chassis has only two of CABLE to install easily | Circumscribed |
| Energy conversion efficiency | The efficient height, about 80% meets requirements of green environmental protection | Efficient is low, and is about 45%, do not meet requirements of green environmental protection. |
| Requirements of green environmental protection | Use Ni-MH battery, pollution-free, nuisanceless, compliance with environmental protection requirements. | Use lead-acid battery, serious environment pollution does not meet environmental requirement. |
| UPS carries out the state of power supply | As long as the output of power supply device direct supply is undesired | AC interruptions or voltage instability are regularly |
Detailed structure of the present invention is illustrated in conjunction with the embodiments:
Fig. 1 is the action timing diagram of the normal signal of power supply (POWER GOOD).
Figure finds out thus, when direct supply output undesired by normally transferring to, at least 1 microsecond before normal direct supply stops output, normal signal will transfer electronegative potential to by noble potential.
Fig. 2 is a box structure synoptic diagram of the present invention.
Fig. 3 is a battery charge process flow diagram of the present invention.
Fig. 4 is system works flow process figure of the present invention.
At first, the present invention constantly judges whether electric power interrupts when general normal manipulation mode, whether the normal signal of promptly detecting the power supply device transfers electronegative potential to by noble potential, if then enter the battery-powered state that makes immediately, notify computer system to enter battery saving mode simultaneously, whether the present invention's this moment still continues to detect electric power and restores electricity.Judge then if not whether the power breakdown time surpasses the setting value of system bios, the present invention approximately can provide 1.7 hours power supply, and the setting value of system bios can be located between 1-1.5 hour, if surpass and then carry out the action that computer information stores, data storage is arrived hard disk drive, whether constantly detect electric power thereafter recovers, if power recovery then with former computer system data reducing, continues to enter general normal running, battery when general normal running in the UPS, can carry out dynamically charging along with battery temperature and voltage, full if battery fills, for not making rechargeable battery aging, then carry out the drop charging.
Fig. 5, Fig. 6 are embodiment of the invention circuit theory diagrams.
Fig. 7 is a distribution circle of the present invention.
Fig. 8 is the function comparison diagram of the present invention and traditional UPS.
+ 12V rises to+16V through booster circuit 1, putting 1. generation+16V, makes integrated circuit chip U
2Charging, electric battery 3 is received in the output of charging circuit, gives electric battery 3 chargings under the control of control signal, and the control signal of charging circuit is from POWER GOOD, ENCHG and ISEH, and POWER GOOD signal is from the 1BM computing machine.By operational amplifier U
4A, U
4B, microprocessor U
5, three terminal regulator U
3And the charging control circuit of peripheral element composition, output ENCHG and ISEH signal, U
3To U
5Burning voltage is provided.Microprocessor U
5Comprise three groups of A/D converters (A/D CONVERTER), first group (AINO) is used for setting the maximum charge time, after reading in voltage by this group A/D, find out the maximum charge time of correspondence by following table, after reading in voltage by this group A/D, find out maximum charge time of correspondence by following table, therefore, as long as can set the maximum charge time, as shown in the table with the ratio of non-essential resistance R and R:
| The AINO input | The standard charging time |
| ≤1V | 30 minutes |
| ＞1V，≤2V | 60 minutes |
| ＞2V，≤3V | 90 minutes |
| ＞2V，≤4V | 120 minutes |
| ＞ |
150 minutes |
Second group of A/D converter (AIN1) is when charging detecting, and the changing value of cell voltage is obtained the state of a △.The 3rd group of A/D converter (AIN2) produces for detecting battery temperature, detecting battery whether △ T/ △ t, and △ T/ △ t in three minutes rising value what, by DT, DT(PIN25,26) decision, setting value is determined by following table:
| DT | DT | △T／△t |
| 0 | 0 | 2℃ |
| 0 | 1 | 3 |
| 1 | 0 | 4 |
| 1 | 1 | 5℃ |
Fig. 7 is a wiring diagram of the present invention, wherein city's electric system inputs to power supply device A by AC point 71, be connected to the present invention's uninterruptible power supply system for green computer B through two groups of direct current supply lines 72 of P8, P9, again through two groups of direct current supply lines of the present invention's P8, P9 and PG(POWER GOOD) 73 be connected to P8, the P9 of green computer C, connect a battery saving mode signal line 74(SLEEP MODE E NABLE WIRE simultaneously), so as long as meet the APM specification or have the computer of battery saving mode function to be connected with uninterruptible power supply system for green computer of the present invention easily.Hover mode integrated circuit U
6, two field effect transistor Q
4, Q
5Deng composition hover mode executive circuit 8, U
6Send pulse signal, control Q
4, Q
5Alternation switch, the direct current with battery offers circuit with hover mode, variable resistor VR
1Be used for gating pulse frequency and duty formula.Transport and placing device U
7A, R
37～R
79, C
14The battery electric power circuit for detecting of forming 7 is in order to the power shortage of automatic detection battery.
The specifications and models of each first device of circuit theory diagrams of the present invention are as follows:
U
1: LT1070CT, U
2: 4960, U
3: LM7805, U
4A, U
413, U
7ABe 358, U
5: THP47C242, U
6: TL494, U
8: LM7905, U
9: LM7912;
Q
1, Q
2, Q
3, Q
7, Q
9, Q
10Be C1815, Q
4, Q
5Be not this field effect transistor, Q
6, Q
11Be A1015;
D
1, D
2, D
3Be SZLA20, D
4～D
16Be IN4140;
LED
1～LED
3Be light emitting diode;
C
1, C
2, C
3, C
7, C
8, C
12, C
18, C
20, C
21, C
22, C
23, C
24, C
25Be electrochemical capacitor, its capacitance is followed successively by: 100 μ F, 1 μ F, 330 μ F, 330 μ F, 1 μ F, 1 μ F, 470 μ F, 100 μ F, 47 μ F, 1000 μ F, 470 μ F, 100 μ F, 47 μ F; C
4, C
5, C
6, C
9, C
10, C
11, C
13, C
14, C
15, C
16, C
17, C
19Capacitance be followed successively by: 443P, 104P, 503P, 104P, 47P, 47P, 103P, 102P, 104P, 102P, 104P, 103P;
R
1～R
52Resistance be followed successively by: 470 Ω, 10K, 1.2K, 4.7K, 10K, 10K, 100K, 10K, 10K, 0.1 Ω, 39K, 15K, 13K, 100 Ω, 3.3K, 3.3K, 330K, 15K, 4.7K, 2.2K, 2.2K, 2.2K, 68K, 100K, 100K, 100 Ω, 1M, 1K, 51K, 10K, 10K, 10K, 100K, 10K, 10K, 1K, 10K, 10K, 470K, 15K, 4.7K, 100K, 100 Ω, 10K, 10K, 10K, 10K, 100 Ω, 10K, 10K, 10K, 10K; RTH1:100K; RPI:100K * 4; L
1: 150 μ H, L
2: 90 μ H, L
3: 10 μ H, L
4, L
5Be iron-core inductance; X
1: 2M.
Claims (10)
1, a kind of uninterruptible power supply system for green computer, comprise the external power circuit for detecting, ac-dc power conversion circuit, inverter circuit, it is characterized in that it being by booster circuit 1, charging control circuit 2, electric battery 3, output control circuit 4, change-over circuit 5, change-over circuit 6, battery electric power Auto-Sensing circuit 7, computer system hover mode executive circuit 8 and fan control circuitry 9 are formed, + 12V DC voltage is after booster circuit 1 boosts, output+15V voltage is supplied with charging control circuit 2, and the output of charging control circuit 2 connects electric battery 3 when the normal signal of computer power device output is electronegative potential, output control circuit 4 control transformation circuit 5 and change-over circuit 6 are started working, and being voltage according to electric battery 3, battery electric power Auto-Sensing circuit 7 just come controlling computer system suspension pattern executive circuit 8 whether can carry out battery saving mode, charging control circuit 2 is when dynamically charging, and control fan control circuitry 9 is carried out cooling fans and started.
2, uninterruptible power supply system for green computer according to claim 1 is characterized in that described booster circuit 1 is by the integrated circuit chip U that boosts
1, three capacitor C
1～C
3, stabilivolt D
1, inductance L
1With three resistance R
1～R
3Form U
15 pin are through L
1Connect its 4 pin, and 4 pin are through D
1Connect charging control circuit 2 input ends, its 1 pin is through R
1, C
2R with series connection
3, R
2Connect charging control circuit 2,2, pin meets R
3, R
2The place that links, in addition, 5 pin are through C
1Also connect C with 3 pin
3Positive pole meets U
11. output terminal is promptly put, minus earth.
3, uninterruptible power supply system for green computer according to claim 1 is characterized in that described charging control circuit 2 comprises charging integrated circuit chip U
2, two operational amplifier U
4A, U
4B, microprocessor U
5, two three-terminal voltage-stabilizing pipe D
2, D
3, diode D
4, crystal oscillator X
1, inductance L
2, row resistance R P
1, thermistor RTH
1, 9 capacitor C
4～C
12, 22 resistance R
4～R
9, R
11, R
12, R
14～R
27And three light emitting diode L
1ED
1～LED
3, integrated circuit chip U wherein charges
2And three capacitor C
4～C
5, two transistor Q
1, Q
2, two stabilivolt D
2, D
3, inductance L
2, three resistance R
4～R
5Form charging circuit; Microprocessor U
5, row resistance R P
1, the prosperous X that shakes
1, diode D
4, three terminal regulator U
3, six capacitor C
7～C
12, 19 resistance R
7, R
8, R
9, R
11, R
12, R
14～R
27, three LEDs
1～LED
3Form charging control circuit, charging integrated circuit chip U
2Output terminal 7 pin are through L
2, D
3Connect electric battery 3 inputs.
4, uninterruptible power supply system for green computer according to claim 1 is characterized in that described electric battery 3 is by dc-battery group and resistance R
10Form, its output terminal is 2. to battery electric power Auto-Sensing circuit 7 output ISEH signals.
5, uninterruptible power supply system for green computer according to claim 1 is characterized in that described output control circuit 4 comprises two transistor Q
6, Q
7, 5 resistance R
43～R
47, Q
6Emitter is through the R of series connection
44, R
45Meet Q
7Collector, Q
6Base stage meets R
44, R
45The place that links, Q
6Collector is through R
43Connect battery electric power Auto-Sensing circuit 7 and computer system hover mode executive circuit 8 respectively, and the normal signal POWER of computer GOOD is through R
47Be input to Q
7, Q
7Base stage is through R
45Ground connection.
6, uninterruptible power supply system for green computer according to claim 1 is characterized in that described change-over circuit 5 is by three terminal regulator U
8, three diode D
5, D
6, D
13, inductance L
3With two capacitor C
20, C
21Form U
8Input end is through L
3Respectively with D
5, D
6Positive pole joins, D
5, D
6Negative pole again respectively with change-over circuit 6 in transformer T
1Secondary coil join; U
8Input end is also through C
20Ground connection; U
8Output terminal is through D
13Output+5V voltage.
7, uninterruptible power supply system for green computer according to claim 1 is characterized in that described change-over circuit 6 comprises three terminal regulator U
9, transformer T
1, 9 diode D
7～D
12, D
14～D
16, two iron-core inductance L
4, L
5, an inductance L
5, four capacitor C
22～C
25, L
4One end is respectively through D
7, D
10Meet T
1Secondary coil S
12. end and 5. end, its other end is through D
14Output+12V voltage, L
5One end is respectively through D
8, D
9Meet T
1Secondary coil S
13. end and 4. end, its other end is through D
15Output-5V voltage, U
9Input end and L
6One end links, L
6The other end is respectively through D
11, D
12With T
1Another secondary coil S
2Two ends connect U
9Output terminal is through D
16Output-12V voltage.
8, uninterruptible power supply system for green computer according to claim 1 is characterized in that described battery electric power Auto-Sensing circuit 7 is by transport and placing device U
7A, capacitor C
14, three resistance R
37～R
39Form, send ISEH signal input U by electric battery 3
7A2 pin, U
7AOutput terminal 1 pin meets the input end of computer system hover mode executive circuit 8, U
7A3 pin are through R
38Ground connection, in addition, U
7A2 pin are through the R of parallel connection
39, C
14Connect its 1 pin.
9, uninterruptible power supply system for green computer according to claim 1 is characterized in that described hover mode executive circuit 8 comprises hover mode integrated circuit U
6, two field effect transistor Q
4, Q
5, variable resistor VR
1, six capacitor C
13, C
15～C
19, 13 resistance R
28～R
36, R
40～R
42, R
48, U wherein
611 pin meet Q
4Source electrode, U
68 pin meet Q
5Source electrode, Q
4Grid meets transformer T in the conversion circuit 6
1Primary coil one end, Q
5Grid meets T
1The primary coil other end, Q
4, Q
5Leak all ground connection of level, 4 pin connect output control circuit 4,1 pin and connect the not enough circuit for detecting 7 of battery electric power.
10, uninterruptible power supply system for green computer according to claim 1 is characterized in that described fan control circuitry 9 is by three transistor Q
9～Q
11, four resistance R
49～R
52Form, the ENCHG signal that is sent by charging control circuit 2 is through R
49Be input to Q
9Base stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94102145 CN1107979A (en) | 1994-03-04 | 1994-03-04 | Uninterruptible power supply system for green computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94102145 CN1107979A (en) | 1994-03-04 | 1994-03-04 | Uninterruptible power supply system for green computer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1107979A true CN1107979A (en) | 1995-09-06 |
Family
ID=5030520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94102145 Pending CN1107979A (en) | 1994-03-04 | 1994-03-04 | Uninterruptible power supply system for green computer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1107979A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6693851B1 (en) | 1999-05-14 | 2004-02-17 | Seiko Epson Corporation | Electronic device and control method for electronic device |
-
1994
- 1994-03-04 CN CN 94102145 patent/CN1107979A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6693851B1 (en) | 1999-05-14 | 2004-02-17 | Seiko Epson Corporation | Electronic device and control method for electronic device |
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