CN102611174A - Intelligent power management system and realizing method thereof - Google Patents
Intelligent power management system and realizing method thereof Download PDFInfo
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Abstract
The invention discloses an intelligent power management system and a realizing method thereof. The intelligent power management system comprises a power module, a PWM (Pulse Width Modulation) controller, a peripheral device and a main controller, wherein the power module comprises a synchronous rectification voltage-reducing circuit and a synchronous rectification voltage-increasing circuit which are sequentially connected; the PWM controller controls voltage-reducing output of the synchronous rectification voltage-reducing circuit and/or voltage-increasing output of the synchronous rectification voltage-increasing circuit by outputting a PWM signal; the peripheral device comprises an input device and an output device, wherein the input device is used for inputting commands through a user and the output device is used for outputting parameters of the power module; and the main controller is communicated with the peripheral device and the PWM controller, and is used for controlling a PWM signal output by the PWM controller according to an input instruction of the input device and controlling the parameters of the power module output by the output device. Through the technical scheme of the intelligent power management system and the realizing method thereof, disclosed by the invention, the cost is low, the stability is high, and the user operation is convenient.
Description
Technical field
The present invention relates to field of power management, relate in particular to a kind of intelligent power management system and its implementation.
Background technology
At present, perhaps need use in the system than macrocell, for example in some communication systems; Switching station terminal equipment in the distribution product and Feeder Terminal Unit or the like; General adopt single or two 12V lead-acid batteries are composed in series a battery system, when having alternating current through the backup battery power supply, and when alternating current is arranged; 24V power supply through alternating current being converted to low pressure charges the battery, and is full of the back system and also is in floating charge state.This power-supply management system is a most general present power-supply management system, and system is system's power supply (direct current) when alternating current is arranged on the one hand; Other one the tunnel export to battery charge simultaneously; If AC dump, system changes into storage battery out-put supply, feed system at once.But; There is following defective in this power-supply management system: the charging circuit of pure hardware has determined the voltage conversion range of charging output to fix; That is to say, can only give the battery charge of fixed voltage, and the size of current of charging is fixed; Can not regulate, just charging rate can not be regulated.
Summary of the invention
The technical problem that the present invention will solve is; Can't be different battery charge and defective that can't intelligent management to the prior art power-supply management system; A kind of intelligent power management system and its implementation are provided; This technical scheme cost is low, can be the intelligent management of different battery charge and realization power supply.
The technical solution adopted for the present invention to solve the technical problems is: a kind of intelligent power management system is provided, and it comprises: power module, and it comprises synchronous rectification reduction voltage circuit and the synchronous rectified boost circuit that connects successively; The PWM controller is controlled the step-down output of said synchronous rectification reduction voltage circuit and/or the output of boosting of said synchronous rectified boost circuit through the pwm signal of output; Ancillary equipment, it comprises the input equipment and the output equipment that is used for the parameter output of said power module that is used to supply user input instruction; Main controller, it is communicated by letter with said ancillary equipment and said PWM controller and is connected, and said main controller is controlled PWM controller output pwm signal according to the input instruction of said input equipment, and controls the said parameter of said output equipment out-put supply module.
Preferably, the said parameter of power module is power input voltage and electric power output voltage.
Preferably, the PWM controller comprises chip AT90S4433 and peripheral circuit thereof.
Preferably, main controller is 16 single-chip microcomputers.
Preferably; Power module specifically comprises switching tube U1, switching tube U2, switching tube U3, switching tube U4, inductance L, resistance R, capacitor C 1, capacitor C 2, power input voltage Vin and power input voltage Vout; Wherein, the source electrode of switching tube U1 is connected the other end ground connection of capacitor C 1 with an end of power input voltage Vin and capacitor C 1 respectively; The drain electrode of switching tube U1 is connected with an end of inductance L and the source electrode of switching tube U2 respectively, and the grid of switching tube U1 connects said PWM controller; The grid of switching tube U2 connects said PWM controller, and the grounded drain of switching tube U2, the other end of inductance L are connected with the drain electrode of switching tube U4 with the source electrode of switching tube U3 respectively and are connected; The grounded drain of switching tube U3, the grid of switching tube U3 connect said PWM controller; The grid of switching tube U4 connects said PWM controller, and the source electrode of switching tube U4 is connected the other end ground connection of capacitor C 2 with an end of electric power output voltage Vout and capacitor C 2 respectively through resistance R.
Preferably; The PWM controller is specially synchronous rectification reduction voltage circuit and synchronous rectified boost circuit control: if power input voltage Vin is greater than electric power output voltage Vout and difference during more than or equal to preset value, the work of synchronous rectification reduction voltage circuit realizes step-down output;
If during more than or equal to preset value, the synchronous rectified boost circuit working realizes boosting output to power input voltage Vin less than electric power output voltage Vout and difference; If the difference of power input voltage Vin and electric power output voltage Vout is during less than preset value, synchronous rectification reduction voltage circuit and synchronous rectified boost circuit are worked simultaneously and are realized boosting and step-down is exported.
Preferably, output equipment is a display screen.
Preferably, display screen comprises chip TC1602A15 and peripheral circuit thereof.
Preferably, input equipment is a button
The present invention also provides a kind of implementation method of intelligent power management system, and this system is above-mentioned intelligent power management system, said method comprising the steps of:
S1, user are through said input equipment input instruction;
S2, said input equipment send said instruction to main controller through bus;
S3, said main controller are according to said commands for controlling PWM controller output pwm signal;
S4, said PWM controller are controlled the output of boosting of said synchronous rectification reduction voltage circuit step-down output and/or synchronous rectified boost circuit through the said pwm signal of output;
S5, said main controller are controlled power input voltage and the electric power output voltage that said output equipment is exported said power module.
The technical scheme of embodiment of the present invention; Have following beneficial effect: the PWM controller controls the step-down output of synchronous rectification reduction voltage circuit respectively according to the pwm signal of being exported and the output of boosting of synchronous rectified boost circuit realizes the power intelligent management, and main controller is realized man-machine interaction through the state of control peripheral devices.This technical scheme cost is low, stability is high and user-friendly.
Description of drawings
To combine accompanying drawing and embodiment that the present invention is described further below, in the accompanying drawing:
Fig. 1 is the structural representation of intelligent power management system of the present invention;
Fig. 2 is the circuit diagram of power module of the present invention;
Fig. 3 is first oscillogram of power module of the present invention;
Fig. 4 is second oscillogram of power module of the present invention;
Fig. 5 is the 3rd oscillogram of power module of the present invention;
Fig. 6 is the circuit diagram of PWM controller of the present invention;
Fig. 7 is the flow chart of intelligent power management system implementation method of the present invention.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
See also Fig. 1, Fig. 1 is the structural representation of intelligent power management system of the present invention, and is as shown in Figure 1,
This system comprises PWM (Pulse Width Modulation; Pulse width modulation) controller 1, the power module 2 that is connected with this PWM controller 1 respectively, main controller 3 and the ancillary equipment 4 that is connected with this main controller 3, said power module 2 comprise the synchronous rectification reduction voltage circuit 21 and synchronous rectified boost circuit 22 that connects successively; Wherein, PWM controller 1 controls the step-down output of synchronous rectification reduction voltage circuit 21 respectively according to the pwm signal of being exported and the output of boosting of synchronous rectified boost circuit 22 realizes the power intelligent management; Main controller 3 is communicated by letter with said PWM controller 1 through bus, and realizes man-machine interaction according to the input of ancillary equipment 4.
Should be noted that in the present embodiment said PWM controller 1 and main controller 3 are communicated by letter through iic bus, what deserves to be mentioned is that it is fast that PWM controller 1 and main controller 3 adopt iic bus to communicate processing speed; Adopt PWM controller 1 and main controller 3 to improve the stability of a system simultaneously.Those skilled in the art should understand, and in other embodiment, can select other bus to realize communicating by letter between PWM controller and the main controller according to user's demand, repeats no more at this.
What deserves to be mentioned is that in the prior art, the general reduction voltage circuit that adopts is universal circuit design; Those skilled in the art should be understood that booster circuit is as the same at this diagrammatic sketch no longer; In the present embodiment, in this system synchronous rectification reduction voltage circuit 21 and synchronous rectified boost circuit 22 combined and realize step-down simultaneously and boost, like this; To different batteries, system can be in preset range the discharging and recharging of the various batteries of intelligent management, related here preset range can set up on their own according to user's demand; Repeat no more at this; In addition, adopt the metal-oxide-semiconductor and the capacitor and inductor of simple cheap to realize power-supply management system efficiently in the present embodiment, this is to adopt application-specific integrated circuit unapproachable.
See also Fig. 2; Fig. 2 is the circuit diagram of power module of the present invention; As shown in Figure 2, said power module specifically comprises switching tube U1, switching tube U2, switching tube U3, switching tube U4, inductance L, resistance R, capacitor C 1, capacitor C 2, power input voltage Vin and power input voltage Vout, wherein; The source electrode of switching tube U1 is connected with an end of power input voltage Vin and capacitor C 1 respectively; The other end ground connection of capacitor C 1, the drain electrode of switching tube U1 are connected with an end of inductance L and the source electrode of switching tube U2 respectively, and the grid of switching tube U1 connects said PWM controller; The grid of switching tube U2 connects said PWM controller, and the grounded drain of switching tube U2, the other end of inductance L are connected with the drain electrode of switching tube U4 with the source electrode of switching tube U3 respectively and are connected; The grounded drain of switching tube U3, the grid of switching tube U3 connect said PWM controller; The grid of switching tube U4 connects said PWM controller, and the source electrode of switching tube U4 is connected the other end ground connection of capacitor C 2 with an end of electric power output voltage Vout and capacitor C 2 respectively through resistance R.
Specify the operation principle of this power module below:
Please combine to consult Fig. 3, Fig. 3 is first oscillogram of power module of the present invention, and is as shown in Figure 3, in the present embodiment; If power input voltage Vin is greater than electric power output voltage Vout and difference during more than or equal to preset value, switching tube U4 conducting, switching tube U3 breaks off; This synchronous rectified boost circuit is only as a path, and supposition PWM controller is exported signal SWITCHA and signal SWITCHB respectively, the break-make of signal SWITCHA and signal SWITCHB difference control switch pipe U1 and switching tube U2; And cooperate discharging and recharging of inductance L, capacitor C 1 and capacitor C 2 to realize step-down output, should be noted that it will be appreciated by those skilled in the art that; Electric power output voltage Vout is the function of the duty ratio of power input voltage Vin and pwm signal, i.e. Vout=Vin*1/D, wherein; D is the duty ratio of pwm signal, and in theory, this electric power output voltage Vout generally is less than power input voltage Vin; But, the exportable bigger electric current of the synchronous rectification reduction voltage circuit in the present embodiment, thus power output improved.
Please combine to consult Fig. 4, Fig. 4 is second oscillogram of power module of the present invention, and is as shown in Figure 4; If power input voltage Vin is less than electric power output voltage Vout and difference during more than or equal to preset value, switching tube U1 conducting, switching tube U2 breaks off; This synchronous rectification reduction voltage circuit is only as a path, and supposition PWM controller is exported signal SWITCHA and signal SWITCHB respectively, the break-make of signal SWITCHC and signal SWITCHD difference control switch pipe U3 and switching tube U4; And cooperate discharging and recharging of inductance L, capacitor C 1 and capacitor C 2 to realize boosting output, should be noted that it will be appreciated by those skilled in the art that; Electric power output voltage Vout is the function of the duty ratio of power input voltage Vin and pwm signal, i.e. Vout=Vin * (D/1-D), wherein; D is the duty ratio of pwm signal, and when D approached 1, electric power output voltage Vout in theory can be infinitely great; But limit by the withstand voltage of switching tube, electric power output voltage Vout can not surpass this withstand voltage.The exportable bigger electric current of synchronous rectified boost circuit in the present embodiment, thus power output improved.
Please combine to consult Fig. 5, Fig. 5 is the 3rd oscillogram of power module of the present invention, and is as shown in Figure 5; That if the difference of power input voltage Vin and electric power output voltage Vout during less than preset value, should be explained but, this preset value can be according to user's demand setting; General this preset value is more little good more; At this moment, synchronous rectification reduction voltage circuit and synchronous rectified boost circuit are worked simultaneously and are realized boosting and step-down output, to obtain user's required voltage.
The circuit of PWM controller is as shown in Figure 6, and it comprises chip AT90S4433 and peripheral circuit thereof.Chip AT90S4433 adopts Harvard structure, and the instruction cycle is short, rapid speed.The PWM controller is used to export control signal; In the present embodiment; 4 control signals of PWM controller output; Just above-mentioned mentioned signal SWITCHA, signal SWITCHB, signal SWITCHC and signal SWITCHD, these 4 control signals are the break-make of control switch pipe U1, switching tube U2, switching tube U3 and switching tube U4 respectively.
In the present embodiment, main controller is 16 single-chip microcomputers, and this single-chip microcomputer cost is low, can to different batteries relevant parameters regulation voltage and electric current be set through software easily.
Said ancillary equipment (figure does not show) comprises display screen and button.Said display screen comprises chip TC1602A15 and peripheral circuit thereof.Should be noted that; In the present embodiment, this power input voltage Vin and electric power output voltage Vout are presented on the display screen through main controller, have realized man-machine interaction; Make things convenient for the user to read the state of power supply at any time; Button also is so, that is to say, increases ancillary equipment and has made things convenient for the management of user to power supply.
See also Fig. 7, Fig. 7 is the flow chart of intelligent power management system implementation method of the present invention, and is as shown in Figure 7, said method comprising the steps of:
In step S1, the pwm signal that the PWM controller passes through to be exported is controlled the output of boosting of step-down output of synchronous rectification reduction voltage circuit and synchronous rectified boost circuit respectively;
In step S2, main controller is communicated by letter with said PWM controller through bus, and realizes man-machine interaction according to the input of ancillary equipment.
Input according to ancillary equipment among the said step S2 realizes that man-machine interaction specifically may further comprise the steps:
If the ancillary equipment of input is display, then the PWM controller is presented at the order of power module on the display screen through main controller;
If the ancillary equipment of input is button, then main controller is through the output of the key command control pwm signal of input.
Compared to prior art; The PWM controller controls the step-down output of synchronous rectification reduction voltage circuit respectively according to the pwm signal of being exported and the output of boosting of synchronous rectified boost circuit realizes the power intelligent management, and main controller is realized man-machine interaction through the state of control peripheral devices.This technical scheme cost is low, stability is high and user-friendly.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.
Claims (10)
1. intelligent power management system is characterized in that it comprises:
Power module, it comprises synchronous rectification reduction voltage circuit and the synchronous rectified boost circuit that connects successively;
The PWM controller is controlled the step-down output of said synchronous rectification reduction voltage circuit and/or the output of boosting of said synchronous rectified boost circuit through the pwm signal of output;
Ancillary equipment, it comprises the input equipment and the output equipment that is used for the parameter output of said power module that is used to supply user input instruction;
Main controller, it is communicated by letter with said ancillary equipment and said PWM controller and is connected, and said main controller is controlled PWM controller output pwm signal according to the input instruction of said input equipment, and controls the said parameter of said output equipment out-put supply module.
2. intelligent power management system according to claim 1 is characterized in that, the said parameter of power module is power input voltage and electric power output voltage.
3. intelligent power management system according to claim 2 is characterized in that, said PWM controller comprises chip AT90S4433 and peripheral circuit thereof.
4. intelligent power management system according to claim 2 is characterized in that, said main controller is 16 single-chip microcomputers.
5. intelligent power management system according to claim 1; It is characterized in that; Said power module specifically comprises switching tube U1, switching tube U2, switching tube U3, switching tube U4, inductance L, resistance R, capacitor C 1, capacitor C 2, power input voltage Vin and power input voltage Vout; Wherein, the source electrode of switching tube U1 is connected the other end ground connection of capacitor C 1 with an end of power input voltage Vin and capacitor C 1 respectively; The drain electrode of switching tube U1 is connected with an end of inductance L and the source electrode of switching tube U2 respectively, and the grid of switching tube U1 connects said PWM controller; The grid of switching tube U2 connects said PWM controller, and the grounded drain of switching tube U2, the other end of inductance L are connected with the drain electrode of switching tube U4 with the source electrode of switching tube U3 respectively and are connected; The grounded drain of switching tube U3, the grid of switching tube U3 connect said PWM controller; The grid of switching tube U4 connects said PWM controller, and the source electrode of switching tube U4 is connected the other end ground connection of capacitor C 2 with an end of electric power output voltage Vout and capacitor C 2 respectively through resistance R.
6. intelligent power management system according to claim 5 is characterized in that, the PWM controller is specially synchronous rectification reduction voltage circuit and synchronous rectified boost circuit control:
If during more than or equal to preset value, the work of synchronous rectification reduction voltage circuit realizes step-down output to power input voltage Vin greater than electric power output voltage Vout and difference;
If during more than or equal to preset value, the synchronous rectified boost circuit working realizes boosting output to power input voltage Vin less than electric power output voltage Vout and difference;
If the difference of power input voltage Vin and electric power output voltage Vout is during less than preset value, synchronous rectification reduction voltage circuit and synchronous rectified boost circuit are worked simultaneously and are realized boosting and step-down is exported.
7. intelligent power management system according to claim 1 is characterized in that, said output equipment is a display screen.
8. intelligent power management system according to claim 1 is characterized in that said display screen comprises chip TC1602A15 and peripheral circuit thereof.
9. intelligent power management system according to claim 1 is characterized in that, said input equipment is a button.
10. the implementation method of an intelligent power management system is characterized in that, this system is aforesaid right requirement 1 to 9 each described intelligent power management system, said method comprising the steps of:
S1, user are through said input equipment input instruction;
S2, said input equipment send said instruction to main controller through bus;
S3, said main controller are according to said commands for controlling PWM controller output pwm signal;
S4, said PWM controller are controlled the output of boosting of said synchronous rectification reduction voltage circuit step-down output and/or synchronous rectified boost circuit through the said pwm signal of output;
S5, said main controller are controlled power input voltage and the electric power output voltage that said output equipment is exported said power module.
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| CN2012100589712A CN102611174A (en) | 2012-03-08 | 2012-03-08 | Intelligent power management system and realizing method thereof |
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| CN2012100589712A CN102611174A (en) | 2012-03-08 | 2012-03-08 | Intelligent power management system and realizing method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103269105A (en) * | 2013-05-30 | 2013-08-28 | 东莞市可享光电科技有限公司 | Self-control multi-voltage output system of reserve power supply |
| CN104539011A (en) * | 2014-12-23 | 2015-04-22 | 黄洁 | Boosting charger |
| CN109428374A (en) * | 2016-11-10 | 2019-03-05 | 佳纶生技股份有限公司 | display screen |
| CN109831105A (en) * | 2019-04-12 | 2019-05-31 | 山东超越数控电子股份有限公司 | A kind of power supply adaptor implementation method that output voltage is adaptive and a kind of power supply adaptor |
| CN110247455A (en) * | 2019-06-26 | 2019-09-17 | 深圳创维－Rgb电子有限公司 | Television set |
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| US5475296A (en) * | 1994-04-15 | 1995-12-12 | Adept Power Systems, Inc. | Digitally controlled switchmode power supply |
| JP2003189636A (en) * | 2001-12-12 | 2003-07-04 | Tdk Corp | Step-up and -down converter and system interconnection inverter |
| CN101340152A (en) * | 2008-07-02 | 2009-01-07 | 刘祖武 | Digital direct tuning DC voltage stabilizing and regulating power source |
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| US5475296A (en) * | 1994-04-15 | 1995-12-12 | Adept Power Systems, Inc. | Digitally controlled switchmode power supply |
| JP2003189636A (en) * | 2001-12-12 | 2003-07-04 | Tdk Corp | Step-up and -down converter and system interconnection inverter |
| CN101340152A (en) * | 2008-07-02 | 2009-01-07 | 刘祖武 | Digital direct tuning DC voltage stabilizing and regulating power source |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103269105A (en) * | 2013-05-30 | 2013-08-28 | 东莞市可享光电科技有限公司 | Self-control multi-voltage output system of reserve power supply |
| CN103269105B (en) * | 2013-05-30 | 2016-01-20 | 东莞市可享光电科技有限公司 | Certainly the control multivoltage output system of stand-by power supply |
| CN104539011A (en) * | 2014-12-23 | 2015-04-22 | 黄洁 | Boosting charger |
| CN109428374A (en) * | 2016-11-10 | 2019-03-05 | 佳纶生技股份有限公司 | display screen |
| CN109831105A (en) * | 2019-04-12 | 2019-05-31 | 山东超越数控电子股份有限公司 | A kind of power supply adaptor implementation method that output voltage is adaptive and a kind of power supply adaptor |
| CN110247455A (en) * | 2019-06-26 | 2019-09-17 | 深圳创维－Rgb电子有限公司 | Television set |
| CN110247455B (en) * | 2019-06-26 | 2023-10-27 | 深圳创维－Rgb电子有限公司 | Television set |
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Application publication date: 20120725 |