CN2435782Y - Intelligent computer power supply - Google Patents
Intelligent computer power supply Download PDFInfo
- Publication number
- CN2435782Y CN2435782Y CN 00248650 CN00248650U CN2435782Y CN 2435782 Y CN2435782 Y CN 2435782Y CN 00248650 CN00248650 CN 00248650 CN 00248650 U CN00248650 U CN 00248650U CN 2435782 Y CN2435782 Y CN 2435782Y
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- power supply
- circuit
- power
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- singlechip controller
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Abstract
The utility model relates to a computer power supply, particularly a computer power supply which can integrate a power supply and a backup power supply as a whole. The utility model comprises a voltage reduction and voltage stabilization portion during the supply of the alternating current, a performance detection and security protection portion and an inversion portion. The utility model is characterized in that a power supply control circuit is a single-chip microcomputer controller, a switch voltage transformer can be 220 volts winding and 12 volts winding on the primary winding; alternate current voltage regulation and direct current voltage regulation can be selectively proceeded; the single-chip microcomputer controller outputs 50Hz sine wave which is inputted into an inverter circuit, and an accumulator jar can alone provide alternating current power supply for a display. A power supply interface of an external connected accumulator jar can also be arranged. The utility model realizes the digital control of the power supply.
Description
The utility model relates to a kind of computer power supply, relate in particular to a kind of can the current collection source and back-up source in the computer power supply power supply of one.
At present, our normally used computer power supply is to be arranged on by one that power supply device provides in the computer host box, this charger is made of a current supply circuit, both pwm circuits, and this circuit uses 220 volts of electric mains after the rectification step-down for main frame.Because the civil power instability, sudden power causes computer data to lose sometimes.In order to solve the sudden power problem, computing machine generally all adopts external standby power supply.External standby power supply is commonly called as ups power, and its course of work is: 220 volts of electric mains to charge in batteries, during the inversion discharge, by inverter circuit, are become alternating current output again, enter computer power supply, use for computing machine.Existing power circuit for computer is by forming with the lower part: power control circuit, high-voltage alternating rf filtering, high-voltage alternating current rectifying and wave filtering circuit, device for power switching, switch transformer, low-voltage direct rectifying and wave-filtering and light lotus root; The ups power that uses is by forming with the lower part now: wave filter, input transformer, rectification circuit, power supply switch, inverter power device, contravariant transformer and storage battery charging circuit.Though adopt standby power supply to overcome sudden power, the problem that computer data is lost, built-in computer power supply and external some circuit of standby power supply repeat, and have increased the common-battery link, have caused unnecessary energy dissipation.
The purpose of this utility model provides a kind of energy savings, and power supply is reliable, and power supply link is few, when external electric main sudden power, calculates the function operate as normal, and the intelligent computer power supply of possibility of reversal power supply.
Another purpose of the utility model provides a kind of when external electric main cuts off the power supply for a long time, can easily external high-power accumulator jar, and make computing machine still be in the intelligent computer power supply of possibility of reversal power supply of the state of operate as normal.
The purpose of this utility model is to realize by such technical scheme: a kind of intelligent computer power supply of possibility of reversal power supply, comprise power control circuit, the high-voltage alternating rf filtering, the high-voltage alternating current rectifying and wave filtering circuit, device for power switching, switch transformer, the low-voltage direct rectifying and wave-filtering, the power supply switch, the storage battery charging circuit, accumulator jar, the inverter power device, contravariant transformer and light lotus root, be characterized in that described power control circuit is a singlechip controller, described switch transformer is respectively 220 volts of windings and 12 volts of windings on elementary winding, over-and under-voltage testing circuit and electronic insurance are set when high-voltage alternating power supply input, this over-and under-voltage testing circuit connects an input port of described singlechip controller by described smooth lotus root, described singlechip controller has a delivery outlet to be connected to described electronic insurance, described device for power switching is provided with the overcurrent sample circuit, this overcurrent sample circuit feeds back to described power switch after feeding described singlechip controller, behind described low-voltage direct rectifying and wave-filtering, the overcurrent sample circuit is set, this overcurrent sample circuit feeds back to described power switch after entering described singlechip controller by analog to digital converter, described singlechip controller has a delivery outlet to be connected with described power supply switch, described accumulator jar and described high-voltage alternating current rectifying and wave filtering circuit are connected to described power switch by described power supply switch, described singlechip controller has a delivery outlet to be connected with described storage battery charging circuit by the storage battery power switch, described singlechip controller has the sine wave of a 50Hz of a delivery outlet output to be connected with described inverter power device, described inverter power device is connected with described contravariant transformer, described contravariant transformer is by inversion switch and described storage battery charging circuit, display connects, in described accumulator jar feed circuit, divide a branch road to be connected on input port of described singlechip controller by a mu balanced circuit.
As above-mentioned technical scheme, when long-time outage, the utility model also is provided with an external high-power accumulator jar power interface, this interface is connected on the described accumulator jar feed circuit by a unidirectional choked flow diode, on described accumulator jar feed circuit, also connect the weary electric auxiliary actuating apparatus of external storage battery, connect high-power accumulator jar by above-mentioned interface.
Principle of work of the present utility model and advantage are: over-and under-voltage testing circuit of adjunction on the end points of external AC power supply, this is to implement to detect the condition of work whether electric main meets this equipment, so that protection equipment is not damaged.Then connect an electronic insurance, this is variously to cut off the electricity supply when unexpected in order to prevent, and takes place so that prevent serious harm.It then is radio-frequency filter, this radio-frequency filter structure function with the computer power supply of routine is the same, it then is current rectifying and wave filtering circuit, also the structure function with the computer power supply of routine is the same for this, then be device for power switching and singlechip controller, key of the present utility model is the PWM integrated circuit that substitutes conventional computer power supply with singlechip controller, simultaneously, single-chip microcomputer is also controlled the power supply of inverter circuit respectively, inverter circuit output, the switch that the external 220 volts of AC power used for display and inverter are changed mutually, three switches of switch transformer, the switch of zero passage switch, the storage battery power switch, in case the outage phenomenon occurs, single-chip microcomputer enters the inversion power supply program of carrying out, performance inversion function of supplying power at once.This device itself carries the miniwatt accumulator jar, can keep work ten minutes for computing machine.This electric supply installation is provided with a unidirectional external direct current power supply interface at power end, and this just stays the next one to make things convenient for connecting interface for the above big storage battery of external 180A/H.This unidirectional purpose of connecting is: when external high capacity storage battery, can be because of storage battery for the Power Limitation of charging circuit of the present invention and this equipment of damage, thus realize power supply for a long time.Voltage-regulation principle: single-chip microcomputer is experienced the trickle variation of voltage by a plurality of sensors, power tube to the driving circuit of transducer sends switching signal, constantly adjust the pulsewidth even the frequency of pulse signal according to the change situation of power supply, as the used pwm circuit of former power circuit for computer (as SG3524), adjust the voltage of output by adjusting pulsewidth.When voltage exceeds setting range, can come the adjustment output voltage of wide region by the frequency of adjusting pulse signal, the function of performance across-the-board regulation voltage.When exceeding the voltage limit that this equipment allows, can guarantee the normal and safe operation of this equipment by the alternating voltage that zero passage switch reduces input significantly.Simultaneously, when external power supply was lower than standard electric alternating current source voltage, single-chip microcomputer can be adjusted output voltage by the pulsewidth of adjusting pulse.Power supply the principle: output of step-down dividing potential drop and the next dividing potential drop of inversion conversion that switch transition is come are exported a shared transducer, reduced hardware, simplified circuit structure, realized using software replacement hardware.Inverter circuit principle: substitute the PWM integrated circuit with singlechip controller, under the state of inversion, export the sine wave of a 50Hz by singlechip controller, substitute sinusoidal oscillation circuit, come 220 volts of pure, stable alternating currents of driving transformer output by the driving power pipe, use for display.By the analysis to the utility model principle of work, the advantage that can sum up is:
1, adopts the chip microcontroller Digital Control to replace the control that mixes of integrated circuit numeral such as PWM and analog quantity,, realized the Digital Control of Switching Power Supply the correlation parameter digitizing of circuit.
2, be one with conventional power supply of computing machine and backup type inverter and two, become a kind of new computer power supply, under power supply is powered abnormal condition, or under the situation about having a power failure suddenly, computing machine all can trouble free service.
3, owing to adopt the single-chip microcomputer design, realized software replacement hardware, improved the reliability and the accuracy of circuit design, the power supply power supply can self-adaptive processing, has realized intelligent power supply.
4, the utility model is provided with the low-voltage DC supply interface, can be conveniently implemented under the situation of power failure, as long as external high-power accumulator jar just can be powered for a long time.
Below in conjunction with accompanying drawing the utility model embodiment is done to describe in detail.
Fig. 1 is the principle of work block diagram of the utility model embodiment.
As shown in Figure 1; the intelligent computer power supply of the utility model possibility of reversal power supply; comprise that over-and under-voltage detects; the light lotus root; electronic insurance; the high-voltage alternating rf filtering; the high-voltage alternating rectifying and wave-filtering; 5 volts of direct current rectifying and wave-filterings; overcurrent sample and 5 volts of analog to digital converters; 12 volts of direct current rectifying and wave-filterings; overcurrent sample and 12 volts of analog to digital converters; switch transformer; the overcurrent protection sampling; contravariant transformer; power switch; singlechip controller; transfer switch; the switch power overcurrent sample; unidirectional choked flow diode; storage battery lacks electric auxiliary actuating apparatus; inverter power tube; the inverse switch power device; accumulator jar; the storage battery status displays; mu balanced circuit; computer switch input mouth and electric fan circuit; annexation between them is: 220 volts of high-voltage alternating civil powers are before rf filtering and rectifying and wave-filtering; carrying out over-and under-voltage detects; after this over-and under-voltage testing circuit is input to singlechip controller by the light lotus root; computing through controller is differentiated; whether the electric main of input overtension or cross low and surpass the critical value of the working power of computing machine, so that the on-off of control electronic insurance.At device for power switching the overcurrent sample circuit is set, the computing of via controller is differentiated behind this overcurrent sample circuit access singlechip controller, and whether the duty of device for power switching is normal, so that whether the decision power switch should enter guard mode.Behind 5 volts of direct current rectifying and wave-filterings the overcurrent sample circuit is set, connect 5 volts of analog to digital converters, behind 12 volts of direct current rectifying and wave-filterings the overcurrent sample circuit is set, connect 12 volts of analog to digital converters, above-mentioned analog to digital converter is converted to digital signal with voltage signal, above-mentioned sample circuit be provided with two purposes: one, be with voltage is assorted feed back to singlechip controller after, differentiate by computing, can know the slight change of operating voltage exactly, sustaining voltage is stable; Two, be by change in voltage, can know accurately whether output current reaches capacity, so that this power supply is implemented protection to the input and output two ends of sample circuit.One delivery outlet of single-chip microcomputer connects electronic insurance, the alternating current that permission is passed through just can carry out rf filtering and rectifying and wave-filtering, after the high-voltage alternating rectifying and wave-filtering finishes, enter the power supply switch, the accumulator jar feed circuit also are connected with the power supply switch simultaneously, the other end of power supply switch connects switch transformer, switch transformer is respectively 220 volts of windings and 12 volts of windings on elementary winding, alternating current just often, switch transformer is 220 volts of winding work on elementary winding, during the accumulator jar power supply, switch transformer is 12 volts of winding work on elementary winding, and signal of single-chip microcomputer output is to the power supply switch, the action of control power supply switch, equally, single-chip microcomputer is exported a signal to switch transformer, the action of gauge tap transformer.Switch transformer connects 5 volts of direct current rectifying and wave-filterings and overcurrent sample, 12 volts of direct current rectifying and wave-filterings and overcurrent sample, switch transformer also connects 3.5 volts of direct current rectifying and wave-filterings and fan direct current rectifying and wave-filtering, the overcurrent sample circuit is input to signal respectively the input port of single-chip microcomputer, after the single-chip microcomputer self-adaptive processing, be connected to power switch by a delivery outlet, the action of power controlling switch; Fan direct current rectifying and wave-filtering connects fan control circuitry and enters the fan power supply.Single-chip microcomputer has a delivery outlet, the sine wave of output 50Hz is connected with inverter power tube, and inverter power tube is connected with contravariant transformer, contravariant transformer is connected with storage battery charging circuit, display by the inversion switch, signal of single-chip microcomputer output is to the inversion switch, and the action of control inversion switch is when inversion is powered, provide 220 volts of pure AC current by contravariant transformer to display, AC power just often, storage battery charging circuit work is charged to accumulator jar.In the accumulator jar feed circuit, divide a branch road to be connected on input port of single-chip microcomputer, for single-chip microcomputer provides the energy by a mu balanced circuit.One external accumulator jar power interface is arranged, and this interface is connected on the accumulator jar feed circuit by a unidirectional choked flow diode, also connects the weary electric auxiliary actuating apparatus of external storage battery on the accumulator jar feed circuit.Single-chip microcomputer has an input port to connect power switch signal detection mouth, and accumulator jar is provided with the storage battery status displays.
Claims (2)
1, a kind of intelligent computer power supply of possibility of reversal power supply, comprise power control circuit, the high-voltage alternating rf filtering, the high-voltage alternating current rectifying and wave filtering circuit, device for power switching, switch transformer, the low-voltage direct rectifying and wave-filtering, the power supply switch, the storage battery charging circuit, accumulator jar, the inverter power device, contravariant transformer and light lotus root, it is characterized in that described power control circuit is a singlechip controller, described switch transformer is respectively 220 volts of windings and 12 volts of windings on elementary winding, over-and under-voltage testing circuit and electronic insurance are set when high-voltage alternating power supply input, this over-and under-voltage testing circuit connects an input port of described singlechip controller by described smooth lotus root, described singlechip controller has a delivery outlet to be connected to described electronic insurance, described device for power switching is provided with the overcurrent sample circuit, this overcurrent sample circuit feeds back to described power switch after feeding described singlechip controller, behind described low-voltage direct rectifying and wave-filtering, the overcurrent sample circuit is set, this overcurrent sample circuit feeds back to described power switch after entering described singlechip controller by analog to digital converter, described singlechip controller has a delivery outlet to be connected with described power supply switch, described accumulator jar and described high-voltage alternating current rectifying and wave filtering circuit are connected to described power switch by described power supply switch, described singlechip controller has a delivery outlet to be connected with described storage battery charging circuit by the storage battery power switch, described singlechip controller has the sine wave of a 50Hz of a delivery outlet output to be connected with described inverter power device, described inverter power device is connected with described contravariant transformer, described contravariant transformer is by inversion switch and described storage battery charging circuit, display connects, in described accumulator jar feed circuit, divide a branch road to be connected on input port of described singlechip controller by a mu balanced circuit.
2, the intelligent computer power supply of possibility of reversal power supply as claimed in claim 1, it is characterized in that being provided with an external accumulator jar power interface, this interface is connected on the described accumulator jar feed circuit by a unidirectional choked flow diode, also connects the weary electric auxiliary actuating apparatus of external storage battery on described accumulator jar feed circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00248650 CN2435782Y (en) | 2000-08-15 | 2000-08-15 | Intelligent computer power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00248650 CN2435782Y (en) | 2000-08-15 | 2000-08-15 | Intelligent computer power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2435782Y true CN2435782Y (en) | 2001-06-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00248650 Expired - Fee Related CN2435782Y (en) | 2000-08-15 | 2000-08-15 | Intelligent computer power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2435782Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895191A (en) * | 2010-04-08 | 2010-11-24 | 山东高效能服务器和存储研究院 | Method for designing high-power and high-reliability server power supply by using modular power supply |
| CN101582635B (en) * | 2009-06-30 | 2011-10-26 | 东华理工大学 | Direct current boosting power device of three-dimensional resistivity imaging system |
| CN102414638B (en) * | 2009-04-30 | 2014-12-10 | 惠普开发有限公司 | Calculating power input to a computer |
| CN110175142A (en) * | 2019-04-18 | 2019-08-27 | 深圳市普威技术有限公司 | A kind of Interface Expanding circuit and device |
-
2000
- 2000-08-15 CN CN 00248650 patent/CN2435782Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102414638B (en) * | 2009-04-30 | 2014-12-10 | 惠普开发有限公司 | Calculating power input to a computer |
| CN101582635B (en) * | 2009-06-30 | 2011-10-26 | 东华理工大学 | Direct current boosting power device of three-dimensional resistivity imaging system |
| CN101895191A (en) * | 2010-04-08 | 2010-11-24 | 山东高效能服务器和存储研究院 | Method for designing high-power and high-reliability server power supply by using modular power supply |
| CN110175142A (en) * | 2019-04-18 | 2019-08-27 | 深圳市普威技术有限公司 | A kind of Interface Expanding circuit and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Urumqi Teli Telecom Industry Development Co. Ltd. Document name: Notification of Termination of Patent Right |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |