CN1885700A - Intelligent type power supply and its method - Google Patents

Intelligent type power supply and its method Download PDF

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Publication number
CN1885700A
CN1885700A CN 200610028407 CN200610028407A CN1885700A CN 1885700 A CN1885700 A CN 1885700A CN 200610028407 CN200610028407 CN 200610028407 CN 200610028407 A CN200610028407 A CN 200610028407A CN 1885700 A CN1885700 A CN 1885700A
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China
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power supply
intelligent power
electronic
detecting
current value
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CN 200610028407
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Chinese (zh)
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CN100411290C (en
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高金成
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高金成
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Abstract

The related intelligent power supplier for detectable electronic product can be selected by different joint connector for variable electronic products, and detects the required voltage in turns to avoid damage to product. This invention is convenient for user with mobile product, and reduces acquisition cost.

Description

Intelligent power supply and method thereof

[technical field]

The present invention is about a kind of intelligent power supply and its method, especially about a kind of intelligent power supply with out-put supply detecting and adjusting device, in order to the power supply of detecting and output required by electronic product, and the method for detecting of this intelligent power supply.

[background technology]

Along with popularizing of mobile electronic product, (Personal Digital Assistant PDA) has become the electronic installation that the modern carries with digital music player (as Apple iPod, MP3Player) etc. for notebook computer, mobile phone, personal digital assistant.These mobile electronic products further satisfy the demand of consumer to amusement except the purpose of reaching mobile communication and data storing.Above-mentioned these mobile electronic products have built-in recharge-able battery more, when the rechargeable battery power drain, the power supply unit that can utilize this mobile electronic product to arrange in pairs or groups connects AC outlet (as indoor 110V/220V supply socket) or direct current jack (as automobile cigarette lighter 12V), so that this rechargeable battery is charged.

Yet existing power supply unit only can be powered or charges specific mobile electronic product, that is to say that its hardware connecting interface and output voltage only can be applicable to specific mobile electronic product.When the user has a plurality of mobile electronic product of different input voltages of needs or electric current simultaneously, just must purchase a plurality of portable power supply devices that are applicable to different mobile electronic products.Thus, not only the user must expend a large amount of money costs and removes to buy a plurality of different power supply units, and can cause the inconvenience of carrying.

Therefore, be necessary to provide a kind of power supply unit and its method of detecting and adjusting required by electronic product voltage and electric current, this power supply unit is the universal power supply unit that can connect various mobile electronic product and have variable output voltage, and it should be able to satisfy the demand that the single power supply supply can be powered or its rechargeable battery is charged different mobile electronic products.

[summary of the invention]

Main purpose of the present invention is to provide a kind of power supply unit with out-put supply detecting and adjusting device, in order to detect and to export the power supply of different required by electronic product.

Another object of the present invention is to provide a kind of out-put supply detecting and method of adjustment of intelligent power supply, by exporting different voltage gears one by one to detect the output voltage of required by electronic product.

A further object of the present invention is to provide a kind of intelligent power supply that can in time start a detecting flow process, and this detecting flow process is in order to the voltage and the current value of detecting out-put supply.

For achieving the above object, the present invention adopts following technical scheme: a kind of intelligent power supply, it is provided with an ac power input end mouth, a direct current power input mouth, a display unit, replacement (Reset) key and a direct current output port of power source.This ac power input end mouth is used for input ac power, and this dc supply input mouth is used for input DC power.This intelligent power supply can be accepted the input of AC power or direct current, automatically judge the present power type of importing simultaneously, and the magnitude of voltage and the current value of the current required by electronic product that is connected with the dc power output end mouth of Auto-Sensing, then export to the magnitude of voltage and the current value of this required by electronic product, and present magnitude of voltage of exporting and current value are shown on this display unit.Intelligent power supply of the present invention can start an Auto-Sensing program when electronic product is connected to this dc power output end mouth, with magnitude of voltage and the current value of detecting this required by electronic product.

In addition, intelligent power supply of the present invention also provides reset button, for user's current out-put supply of resetting at any time.

Intelligent power supply of the present invention has the connecting line of connection electronic product and the butt connector of different size, and the butt connector of different size can be selected for use according to the electronic product of various different electrical power inputting interfaces.

Intelligent power supply of the present invention utilizes the interlock circuit of different blocks to reach the function of voltage and current sense, and it comprises circuit blocks, DC boosting and reduction voltage circuit block that exchanges the commentaries on classics direct current and the micro-control circuit block of detecting required by electronic product magnitude of voltage and current value.The circuit blocks that direct current is changeed in this interchange is converted to the galvanic current source with the AC power of importing, so that electronic product and the required stabilized power supply of intelligent power supply internal circuit to be provided.This DC boosting and reduction voltage circuit block have a direct current buck integrated circuit, in order to carry out the function of DC boosting and step-down.This micro-control circuit block has a micro-control unit (Micro-Control Unit), can detect the magnitude of voltage of exporting to electronic product at present and the variation of current value, and control direct current buck integrated circuit is adjusted the running of DC boosting and reduction voltage circuit block.In addition, this this display unit of micro-control unit may command as magnitude of voltage and current value etc., is available for users to the present power information of exporting of clearly interpretation to show the power information of being exported at present.In the circuit of intelligent power supply of the present invention, other is provided with one and starts the detecting block, can detect electronic product and whether connect intelligent power supply, with starting resistor detecting flow process, the visual demand of this startup detecting block is arranged at the appropriate location in the intelligent power supply circuit.

The present invention provides a detecting in addition and adjusts the required by electronic product voltage method, and this method can be detected its required voltage in proper order from low to high one by one according to the demand of different electronic products, and can not cause the damage of electronic product because of voltage output value improperly.

In detecting required by electronic product voltage method flow process; if running into electronic product produces unusual; as overvoltage protection; or the user need restart the detecting flow process of detecting required by electronic product voltage; then the user can press reset button at any time; maybe this electronic product is broken away from intelligent power supply of the present invention and reconnect again, promptly resettable this flow process.

Intelligent power supply of the present invention can cooperate the power supply inputting interface of different electronic products to select different butt connectors for use with detecting required by electronic product voltage method, and according to the demand of different electronic products, detect its required voltage in proper order from low to high one by one, and can not cause the damage of electronic product because of voltage output value improperly, so intelligent power supply of the present invention and its method are applicable to various mobile electronic product, it can exempt the inconvenience that the user carries a plurality of power supply units simultaneously, and can save its acquisition cost.

[description of drawings]

Fig. 1 is the stereoscopic figure of intelligent power supply of the present invention.

Fig. 2 is the stereoscopic figure at another visual angle of intelligent power supply of the present invention.

The structural representation of the connecting line of required use when Fig. 3 links to each other with electronic product for intelligent power supply of the present invention.

The structural representation of the different butt connector of required use when Fig. 4 docks with electronic product by connecting line for intelligent power supply of the present invention.

Fig. 5 is for exchanging the circuit diagram of an embodiment of circuit blocks who changes direct current in the intelligent power supply of the present invention.

Fig. 6 is the circuit diagram of DC boosting in the intelligent power supply of the present invention and reduction voltage circuit block.

Fig. 7 is the circuit diagram of micro-control circuit block in the intelligent power supply of the present invention.

Fig. 8 is the circuit diagram of DC boosting in the intelligent power supply of the present invention and another embodiment of reduction voltage circuit block.

Fig. 9 is intelligent power supply detecting of the present invention and the flow chart of adjusting the required by electronic product voltage method.

[embodiment]

See also Fig. 1 and Fig. 2, be the stereoscopic figure of intelligent power supply 1 of the present invention.Intelligent power supply 1 is provided with an ac power input end mouth 12, a direct current power input mouth 14, a display unit 16, replacement (Reset) key 18 and a direct current output port of power source 20.Ac power input end mouth 12 is used to insert the adapter (not shown) of AC power with input ac power, as household AC power; Dc supply input mouth 14 is used to insert the adapter (not shown) of DC power supply with input DC power, as vehicle power supply.Intelligent power supply 1 can be accepted the input of AC power or direct current, automatically judge the kind of the present power supply of importing simultaneously, and required magnitude of voltage and the current value of the current electronic product that is connected with dc power output end mouth 20 of Auto-Sensing (not icon), then export to the magnitude of voltage and the current value of this required by electronic product, and present magnitude of voltage of exporting and current value are shown on the display unit 16.Display unit 16 can be LCD or other display unit.Intelligent power supply 1 of the present invention can start the detection process of the magnitude of voltage and the current value of this required by electronic product of Auto-Sensing when electronic product is connected to dc power output end mouth 20.Intelligent power supply 1 of the present invention also provides the function of present out-put supply of resetting at any time for the user, that is, when the user presses reset button 18, intelligent power supply 1 will restart the detection process of the magnitude of voltage and the current value of Auto-Sensing required by electronic product.

See also Fig. 3 and Fig. 4, for connecting intelligent power supply 1 and the connecting line 30 of electronic product and the structural representation of butt connector 42,52.One end of connecting line 30 is first craft port 32 of docking with dc power output end mouth 20, and the other end is second craft port 34 of docking with butt connector 42,52.The structure of first craft port 32 matches with dc power output end mouth 20, and the structure of second craft port 34 matches with butt connector 42,52.Dc power output end mouth 20 shown in the present embodiment, first craft port 32, second craft port 34 all can be changed according to actual demand with the structure of butt connector 42,52 and be other suitable structure, and not with shape shown in the drawings, structure and be of a size of restriction.The different structure that butt connector 42 and the different electronic product of butt connector 52 illustrations are suitable for.Butt connector 42 has one first butt end 44 and 46, the first butt ends 44, one second butt end in order to second craft port, 34, the second butt ends 46 of the butt joint connecting line 30 power input mouth (not shown) in order to the butt joint corresponding electronic products.Butt connector 52 has one the 3rd butt end 54 and 56, the three butt ends 54, one the 4th butt end in order to second craft port, 34, the four butt ends 56 of the butt joint connecting line 30 power input mouth (not shown) in order to the butt joint corresponding electronic products.Hence one can see that, though butt connector 42 is different connectors with butt connector 52, but the one end all has the corresponding butt end of second craft port 34 that can connect connecting line 30, and the other end then is designed to different external forms and size, and can connect the butt end of various different electronic products.Therefore, intelligent power supply 1 of the present invention can be by changing the power supply inputting interface that different butt connectors cooperates various electronic product, utilize the function of Auto-Sensing required by electronic product power supply simultaneously, reach the purpose of various electronic product relevant voltage value of supply and current value.

Fig. 5 to Fig. 7 is the schematic diagram of intelligent power supply 1 inner interlock circuit of the present invention.Fig. 5 is for exchanging the circuit diagram of the circuit blocks of changeing direct current, and Fig. 6 is the circuit diagram of DC boosting and reduction voltage circuit block, and Fig. 7 is the circuit diagram of the micro-control circuit block of detecting required by electronic product magnitude of voltage and current value.See also Fig. 5, when the power supply of input intelligent power supply 1 is AC power, the AC power of 110 volts or 220 volts for example, AC power inputs in the transforming circuit 510 via ac input end mouth 502, transforming circuit 510 will be exported to rectification circuit 512 through the AC power of step-down after the AC power of being imported is carried out the step-down processing.Rectification circuit 512 then will carry out rectification through the AC power of step-down to be handled, and makes it become DC power supply, and the DC power supply of 12 volts or 24 volts for example is for the processing of follow-up DC boosting and step-down.Simultaneously, exchange the circuit blocks of changeing direct current stable DC voltage VCC also is provided, for example 5 volts DC power supply operates required stabilized power supply with the integrated circuit of supplying with in the intelligent power supply 1 inner interlock circuit (IC).In exchanging the circuit blocks of changeing direct current, can be provided with one and start detecting block 514, whether connected the power output end VO+ and the VO-of intelligent power supply 1 in order to the detecting electronic product.Starting resistance 516,518 that detecting block 514 can utilize series connection and a diode connected in parallel 520 reaches and detects whether purpose of connecting of electronic product.When the power output end VO+ of electronic product and intelligent power supply 1 and VO-reach when electrically connecting, because the internal resistance of this electronic product itself, the current potential of detecting voltage end AV is changed, potential change by detecting detecting voltage end AV, the power output end VO+ and the VO-that are decidable electronic product and intelligent power supply 1 have reached electric connection, but thereby the detecting flow process of starting resistor value and current value.Starting detecting block 514 can also reach by other circuit configurations, as combination of triode and resistance etc., whether the detecting electronic product connects the electric current that also can utilize detecting current sense terminal AI changes and reaches, and starts detecting block 514 and also can be arranged in other circuit blocks in the intelligent power supply 1.

See also Fig. 6, intelligent power supply 1 of the present invention has a direct current buck integrated circuit 602, in order to carry out the function of DC boosting and step-down.Direct current buck integrated circuit 602 generally is about 5 volts, to keep the normal operation of direct current buck integrated circuit 602 by stable DC voltage input end INTVCC input VCC voltage.Direct current buck integrated circuit 602 decides the running of DC boosting or step-down according to the signal that electric power detecting feedback terminal FB is fed back.In DC boosting and reduction voltage circuit block, can be provided with one and start detecting block 610 and detect electronic product and whether connect intelligent power supply 1.Starting detecting block 610 utilizes series resistance R18, R19 to cooperate diode connected in parallel D50 and triode Q8, when electronic product connects, because the current potential of detecting voltage end AV changes, and learn that electronic product has connected intelligent power supply 1, thereby can begin the detecting flow process of starting resistor value and current value.Whether start detecting block 610 detecting electronic products connects the electric current that also can utilize detecting current sense terminal AI and changes and reach.Though intelligent power supply 1 of the present invention provides multiple startup detecting block, the right detecting block 610 that starts must not repeat to be provided with aforesaid startup detecting block 514, and the one group of purpose that can reach the electronic product detecting can be set in the appropriate location in the interlock circuit block.DC boosting of the present invention and reduction voltage circuit block are accepted the input of DC power supply by dc voltage input end VIN, and are exported through the DC power supply of boosting or step-down is handled by dc voltage output end VO+ and VO-.It is 5~32 volts that the dc voltage input end VIN of DC boosting of the present invention and reduction voltage circuit block can accept the direct voltage input range, maximum current is input as 10 amperes, and be 0.8~30 volt by the direct voltage output area that dc voltage output end VO+ and VO-are exported, maximum current is output as 5 amperes.

See also Fig. 7, have a micro-control unit 702 (Micro-Control Unit) in the micro-control circuit block of detecting required by electronic product magnitude of voltage and current value, micro-control unit 702 can be a microprocessor integrated circuit (Micro-processor IC).Micro-control unit 702 can be detected the magnitude of voltage of exporting to electronic product at present and the variation of current value, adjusts the running of DC boosting and reduction voltage circuit block.Micro-control unit 702 receives detecting voltage end AV or the magnitude of voltage of current sense terminal AI or the variation of current value, and control multiplexer 710 according to the variation of this magnitude of voltage or current value and export corresponding logical signal with multiplexer 720, this logical signal utilizes feedback signal terminal FB to export to direct current buck integrated circuit 602,602 actions of carrying out DC boosting or step-down according to this feedback signal of direct current buck integrated circuit.Micro-control unit 702 has a plurality of logic pin position, each logic pin position can present 0 or 1 logic state, therefore can be by the different logical signal of output, make multiplexer 710 the Different Logic conversion of signals be become feedback signal, according to this feedback signal output voltage is adjusted with control direct current buck integrated circuit 602 with multiplexer 720.For instance, if adopting P30, P40, P41, P44, five logic pin of P45 position in the micro-control unit 702 comes multiplexer 710 and multiplexer 720 output logic signals, then expressible logical signal can reach 32 (2 five powers=32), so at least 32 kinds of different magnitudes of voltage of may command direct current buck integrated circuit 602 outputs.Logic pin number amount in the micro-control unit 702 also can be adjusted according to practical situations, and direct current buck integrated circuit 602 exportable magnitude of voltage quantity then change thereupon.In the multiplexer circuit, multiplexer 710 respectively has a plurality of passages (channel) X0~X7 with multiplexer 720, each passage is connected with a resistance in the coupling resistance 712,722 respectively, and coupling resistance 712,722 has a plurality of coupling resistances with different resistance values respectively.The logical signal that multiplexer 710 and multiplexer 720 are exported according to micro-control unit 702, the unlatching of control different channels, make direct current buck integrated circuit 602 be coupled to different resistance values, thereby can reach the purpose that direct voltage is adjusted by feedback signal terminal FB.Be provided with an auxiliary sense terminal ADIT who reserves in the circuit of the present invention in addition, can be for the variation of other signal of detecting, as temperature signal etc., to strengthen voltage of the present invention and current sense function.In addition, micro-control unit 702 may command one display driver 730, display driver 730 is according to the instruction of micro-control unit 702, drive display unit 16 and show the present power information of exporting, as magnitude of voltage and current value etc., be available for users to the present power information of exporting of clearly interpretation.Display driver 730 can be LCD driver (LCD Driver), and display unit 16 then is a LCD Panel.

See also Fig. 8, in intelligent power supply 1 of the present invention, the circuit diagram of another embodiment of DC boosting and reduction voltage circuit block.This embodiment is with the difference of aforementioned DC boosting with the reduction voltage circuit block: the startup detecting block 810 that DC boosting is different with the employing of reduction voltage circuit block is detected electronic product and whether is connected intelligent power supply 1.Starting detecting block 810 utilizes series resistance R11, R12 to cooperate diode connected in parallel D820, when electronic product connects, because the current potential of detecting voltage end AV changes, and learn that electronic product has connected intelligent power supply 1, thereby can begin the flow process of starting resistor value and current value detecting.Whether start detecting block 810 detecting electronic products connects the electric current that also can utilize detecting current sense terminal AI and changes and reach.In practical application, diode D820 can be a plurality of diode connected in parallel, with equivalent resistance that reduces diode D820 and the pressure drop that can not improve its two ends, and it is more remarkable that the potential change of detecting voltage end AV or current sense terminal AI or electric current are changed, the then easier connection that detects electronic product.Similarly, start detecting block 810 and must not repeat to be provided with, the one group of purpose that can reach the detecting electronic product can be set in the appropriate location in the interlock circuit block with aforesaid startup detecting block 514 or startup detecting block 610.

See also Fig. 9, be intelligent power supply 1 detecting of the present invention and the flow chart of adjusting the required by electronic product voltage method.Details are as follows for the included step of this detecting required by electronic product voltage method:

Step S902. begins standby mode, under standby mode, and intelligent power supply 1 fixing output one minimum dc voltage value, minimum dc voltage value can be 1.5 volts.

Whether step S904. has connected intelligent power supply 1 by startup detecting block 514,610 or 810 detecting electronic products.Because when electronic product is connected to intelligent power supply 1, can make its internal resistance in parallel with the resistance in the detecting block, detect the current value of block and change to flow through, therefore can change by the current value of micro-control unit 702 detecting current sense terminal AI, judge whether electronic product has been connected to intelligent power supply 1.Micro-control unit 702 can be compared this electric current changing value with one first predetermined current value, if this electric current changing value greater than this first predetermined current value, judges that then electronic product has been connected to intelligent power supply 1; Otherwise, if this electric current changing value not greater than this first predetermined current value, judges that then electronic product is not connected to intelligent power supply 1 as yet.This first predetermined current value can be 1.5 micromicroamperes (mA).Micro-control unit 702 also can utilize the magnitude of voltage of detecting detecting voltage end AV to change, and judges whether electronic product has been connected to intelligent power supply 1.With the detecting of the startup shown in Fig. 5 block 514 is example, when electronic product is connected to intelligent power supply 1, can make its internal resistance in parallel with 518 with the series resistance 516 in the detecting block 514, and the magnitude of voltage between the change series resistance 516 and 518, that is the magnitude of voltage that detecting voltage end AV is detected can change.For instance, when electronic product was not connected with intelligent power supply 1, the magnitude of voltage that this moment, detecting voltage end AV was detected was 500 microvolts (mV); Then when electronic product is connected to intelligent power supply 1, the magnitude of voltage that this moment, detecting voltage end AV was detected can descend, if the magnitude of voltage slippage that detecting voltage end AV is detected surpasses one first magnitude of voltage, judge that then electronic product has been connected to intelligent power supply 1.This first magnitude of voltage can be 30 microvolts.So the variation of the magnitude of voltage that is detected by detecting detecting voltage end AV also can be detected electronic product and whether be connected to intelligent power supply 1.In addition, micro-control unit 702 also can utilize auxiliary sense terminal ADIT to detect the variation of other signal, as temperature signal etc., to reach the purpose whether the detecting electronic product has been connected to intelligent power supply 1.If detecting electronic product has been connected to intelligent power supply 1, then carry out step S908; Otherwise carry out step S906.

Step S906. postpones a Preset Time at interval, gets back to step S904 then.This Preset Time is at interval with so that intelligent power supply 1 is exported test voltage once more, and allows the user can be observed the direct voltage of being exported at present.This Preset Time can be 2 seconds at interval.

Step S908. micro-control unit 702 control direct current buck integrated circuits 602 promote present output voltage values and are the output voltage values of next grade.

Whether the current value of step S910. micro-control unit 702 detecting current sense terminal AI is greater than the first predetermined current value.If the current value of current sense terminal AI then carries out step S912 greater than this first predetermined current value; Otherwise get back to step S908.

Step S912. micro-control unit 702 control direct current buck integrated circuits 602 are kept present output voltage values, wait for current value convergence one stationary value of current sense terminal AI.Waiting time can be 2 seconds.

Step S914. micro-control unit 702 control direct current buck integrated circuits 602 promote present output voltage values and are the output voltage values of next grade.

Step S916. micro-control unit 702 control direct current buck integrated circuits 602 are kept present output voltage values, wait for current value convergence one stationary value of current sense terminal AI.Waiting time can be 2 seconds.

Whether the electric current changing value of step S918. micro-control unit 702 detecting current sense terminal AI is greater than one second predetermined current value.If the electric current changing value of current sense terminal AI represents that greater than this second predetermined current value next grade output voltage values may be more suitable for this electronic product; Otherwise, if the electric current changing value of current sense terminal AI represents then that not greater than this second predetermined current value one grade of output voltage values can be fit to supply with this electronic product stabilized power supply.This second predetermined current value can be selected specific current value in 100~200 micromicroampere scopes.If the electric current changing value of current sense terminal AI is then got back to step S914 greater than this second predetermined current value; Otherwise carry out step S920.

Step S920. micro-control unit 702 control direct current buck integrated circuits 602 are reduced to last one grade of output voltage values with present output voltage values, and lock one grade of output voltage values, to supply with this electronic product stabilized power supply.

Below the detecting process of several list of experiments explanation intelligent power supply 1 of the present invention when detecting different required by electronic product voltage in actual applications.Wherein the visual practical situations of the size of each grade output voltage values and gap is adjusted. Experiment one: mobile phone model Motorola A768 Supply the voltage gear one by one Show electric current ??1.5V ??2mA ??3.0V ??4mA ??4.2V ??5~6mA ??5.0V 746mA (continuing to rise to stationary value) ??6.0V 758mA (with last one grade of gap less than 100mA, so get back to one grade of voltage) Locking 5.0V ??745mA

Experiment two: mobile phone model Motorola V66 Supply voltage gear one by one Show electric current ??1.5V ??0mA ??3.0V ??2mA ??4.2V 0~150mA (continuing to rise to stationary value) ??5.0V 150~160mA (continuing to rise to stationary value) ??6.0V 280mA (with last one grade of gap less than 150mA, so get back to one grade of voltage) Locking 5.0V ??160mA
Experiment three: mobile computer model Dell 510M Supply voltage gear one by one Show electric current
?1.5V ??1mA ?3.0V ??1mA ?4.2V ??1mA ?5.0V ??2mA ?6.0V ??2mA ?8.4V ??3mA ?10V ??3mA ?12V ??4mA ?15V (1.0A electric current fluctuates) ?16V (1.1A electric current fluctuates) ?17V (1.1A electric current fluctuates, and mobile computer begins to show the charging symbol, but reality only powers to mobile computer, and is still not enough in its battery charge) ?18V (2.0A electric current fluctuates, and begins its battery charge) ?19V ??2.5A ?20V 2.4A (with last one grade of gap less than 150mA, so get back to one grade of voltage) Locking 19V ??2.5A

In above experiment flow, can find out that intelligent power supply 1 of the present invention can detect its required voltage one by one according to the demand of different electronic products, and can not cause the damage of electronic product because of voltage output value improperly.

In the flow process of detecting required by electronic product voltage; if running into electronic product produces unusual; as overvoltage protection; or the user need restart the detecting flow process of detecting required by electronic product voltage; then can press reset button 18 at any time; or electronic product broken away from intelligent power supply 1, promptly resettable this flow process.Employed voltage gear in this detecting flow process is exported each grade voltage at every turn all in proper order from low to high, till finding out the suitable voltage of electronic product, damages because of importing excessive voltage to avoid electronic product.

According to above-mentioned detecting required by electronic product voltage method and each step, intelligent power supply of the present invention can cooperate the power supply inputting interface of different electronic products to select different butt connectors for use with detecting required by electronic product voltage method, and according to the demand of different electronic products, detect its required voltage in proper order from low to high one by one, and can not cause the damage of electronic product because of voltage output value improperly, so intelligent power supply of the present invention and its method are applicable to various mobile electronic product, allow the user can exempt the inconvenience of carrying a plurality of power supply units simultaneously, and save its acquisition cost.The applicable general common mobile electronic product of intelligent power supply of the present invention, as notebook computer, Panel PC screen, mobile phone, digital music playing device (as MP3Player, Apple iPod), personal digital assistant (PersonalDigital Assistant, PDA) etc.

In sum, the present invention meets the patent of invention important document, without departing from the spirit and scope of the present invention, the variation of the equalization that one of ordinary skill in the art is done according to the present invention, for example each module of the present invention is carried out function replacement or combination, discrete, within the claim that all should still belong to patent of the present invention contains.

Claims (30)

1. intelligent power supply, it can detect required by electronic product voltage, and this intelligent power supply comprises: a power input mouth, in order to accept the input of external power source; One direct current output port of power source, in order to the output DC source to this electronic product; And one direct current boost and reduction voltage circuit, carry out DC boosting and step-down in order to external power source and handle institute's input; It is characterized in that: this intelligent power supply also comprises: a micro-control circuit, in order to detect this required by electronic product voltage, and control the running of this DC boosting and reduction voltage circuit, the DC power supply that this intelligent power supply is exported meets this required by electronic product power supply; And one start the detecting block, whether electrically connects this intelligent power supply in order to detect this electronic product, detects the detecting flow process of this required by electronic product voltage to start this micro-control circuit.
2. intelligent power supply as claimed in claim 1 is characterized in that: described power input mouth comprises in order to an ac power input end mouth of the input of accepting AC power with in order to a direct current power input mouth of the input of accepting DC power supply; And this intelligent power supply comprises in addition: one exchanges the commentaries on classics DC circuit, handle in order to the AC power of being imported is carried out transformation and rectification, make this AC power be converted to DC power supply, and will export to this DC boosting and reduction voltage circuit through the DC power supply of conversion and carry out DC boosting and step-down processing.
3. intelligent power supply as claimed in claim 1 is characterized in that: this intelligent power supply also comprises a display unit, in order to the DC power supply parameter that shows that this intelligent power supply is exported.
4. intelligent power supply as claimed in claim 3 is characterized in that: the shown DC power supply parameter of described display unit comprises the dc voltage value and the current value of output.
5. intelligent power supply as claimed in claim 3 is characterized in that: described display unit is a liquid crystal indicator.
6. intelligent power supply as claimed in claim 1, it is characterized in that: this intelligent power supply also comprises a connecting line and a plurality of butt connector, in order to connect this electronic product and this intelligent power supply, this connecting line has one first craft port and one second craft port, this first craft port is docked with this dc power output end mouth, this second craft port is docked with this butt connector, this butt connector has one the 3rd butt end and one the 4th butt end, the 3rd butt end is in order to dock second craft port of this connecting line, the 4th butt end is in order to the power input mouth of butt joint corresponding electronic products, the 4th butt end of each butt connector has different specifications, in order to cooperate the power supply inputting interface of different electronic products.
7. intelligent power supply as claimed in claim 1 is characterized in that: described DC boosting and reduction voltage circuit have a direct current buck integrated circuit, in order to carry out the function of DC boosting and step-down.
8. intelligent power supply as claimed in claim 1, it is characterized in that: described micro-control circuit has a micro-control unit, in order to detect the magnitude of voltage of exporting to electronic product at present and the variation of current value, adjust the running of DC boosting and reduction voltage circuit.
9. intelligent power supply as claimed in claim 8 is characterized in that: described micro-control unit is a microprocessor integrated circuit.
10. intelligent power supply as claimed in claim 8, it is characterized in that: described micro-control circuit has at least one multiplexer, in order to receive the logic signal that this micro-control unit sends, carry out the action of adjusting output voltage values according to this logic signal with control DC boosting and reduction voltage circuit.
11. intelligent power supply as claimed in claim 1, it is characterized in that: described startup detecting block has at least two resistance and a diode of series connection, this micro-control circuit can judge whether this electronic product electrically connects this intelligent power supply by the variation of magnitude of voltage or current value between detecting two series resistances.
12. intelligent power supply as claimed in claim 1, it is characterized in that: at least two resistance that described startup detecting block has series connection cooperate a diode connected in parallel and a triode, this micro-control circuit can judge whether this electronic product electrically connects this intelligent power supply by the variation of magnitude of voltage or current value between two resistance of detecting series connection.
13. intelligent power supply as claimed in claim 1, it is characterized in that: at least two resistance that described startup detecting block has series connection cooperate a diode connected in parallel, this micro-control circuit can judge whether this electronic product electrically connects this intelligent power supply by the variation of magnitude of voltage or current value between two resistance of detecting series connection.
14. intelligent power supply as claimed in claim 1, it is characterized in that: at least two resistance that described startup detecting block has series connection cooperate a plurality of diode connected in parallel, this micro-control circuit can judge whether this electronic product electrically connects this intelligent power supply by the variation of magnitude of voltage or current value between two resistance of detecting series connection.
15. intelligent power supply as claimed in claim 1 is characterized in that: this intelligent power supply also is provided with a reset button, detects the detecting flow process of this required by electronic product voltage in order to reset this micro-control circuit.
16. can detect the required by electronic product voltage method for one kind, it is characterized in that, may further comprise the steps:
Detect an electronic product and whether connected an intelligent power supply;
If this electronic product connected this intelligent power supply, then the output voltage values of this intelligent power supply is promoted by the minimum voltage of standby mode and be next grade output voltage values;
Whether the output current value of detecting this intelligent power supply is greater than one first predetermined current value;
If this output current value is greater than this first predetermined current value, then keep this grade output voltage values, level off to stationary value until this output current value;
It is next grade output voltage values that output voltage values is promoted by present output voltage values;
Keep this grade output voltage values, level off to stationary value until this output current value;
Whether the changing value of detecting this output current value is greater than one second predetermined current value; And
If the changing value of this output current value then is reduced to present output voltage values last one grade of output voltage values, and keeps this output voltage values, to supply with this electronic product stabilized power supply not greater than this second predetermined current value.
17. method as claimed in claim 16 is characterized in that: the step utilization whether described detecting electronic product has connected intelligent power supply is detected the variation that one in this intelligent power supply start magnitude of voltage in the detecting block or current value and is reached.
18. method as claimed in claim 17 is characterized in that: described startup detecting block has at least two resistance of series connection, and the purpose that starts detecting is reached in the magnitude of voltage between this intelligent power supply system this two resistance of detecting or the variation of current value.
19. method as claimed in claim 16 is characterized in that: after whether the output current value of this intelligent power supply of detecting was greater than this first predetermined current value step, other comprised:
If do not detect this electronic product when having connected this intelligent power supply, postpone a Preset Time at interval after, repeat the step whether this detecting electronic product has connected intelligent power supply again.
20. method as claimed in claim 19 is characterized in that: described Preset Time is spaced apart 2 seconds.
21. method as claimed in claim 16 is characterized in that: after whether the output current value of this intelligent power supply of detecting was greater than this first predetermined current value step, other comprised:
If during not greater than this first predetermined current value, then being promoted output voltage values by present output voltage values, this output current value is the row detecting again of next grade output voltage values.
22. method as claimed in claim 21 is characterized in that: output voltage values is being promoted by present output voltage values to next grade output voltage values before the capable again detecting step, and other comprises:
Postpone a Preset Time at interval.
23. method as claimed in claim 22 is characterized in that: described Preset Time is spaced apart 2 seconds.
24. method as claimed in claim 16 is characterized in that: after whether the changing value of the output current value of this intelligent power supply of detecting was greater than this second predetermined current value step, other comprised:
If during greater than this second predetermined current value, then being promoted output voltage values by present output voltage values, the changing value of this output current value is the row detecting again of next grade output voltage values.
25. method as claimed in claim 24 is characterized in that: output voltage values is being promoted by present output voltage values to next grade output voltage values before the capable again detecting step, and other comprises:
Postpone a Preset Time at interval.
26. method as claimed in claim 25 is characterized in that: described Preset Time is spaced apart 2 seconds.
27. method as claimed in claim 16 is characterized in that: keep this output voltage values with the step of supplying with this electronic product stabilized power supply after, other comprises:
If when this electronic product breaks away from this intelligent power supply, then reset the method flow process, and get back to the step whether this electronic product of detecting has connected this intelligent power supply.
28. method as claimed in claim 16 is characterized in that: keep this output voltage values with the step of supplying with this electronic product stabilized power supply after, other comprises:
If when a reset button of this intelligent power supply is activated, then reset the method flow process, and get back to the step whether this electronic product of detecting has connected this intelligent power supply.
29. method as claimed in claim 16 is characterized in that: the described first predetermined current value is 1.5 micromicroamperes.
30. method as claimed in claim 16 is characterized in that: the described second predetermined current value is one of a selected particular value in 100~200 micromicroamperes.
CNB2006100284070A 2006-06-28 2006-06-28 Intelligent type power supply and its method CN100411290C (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103001261A (en) * 2011-09-08 2013-03-27 硕天科技股份有限公司 Universal charger with USB (universal serial bus)
CN104332779A (en) * 2014-11-07 2015-02-04 广安市华蓥山领创电子有限公司 Smart retractable data line
WO2017004877A1 (en) * 2015-07-03 2017-01-12 深圳罗马仕科技有限公司 Power extension socket

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US5414610A (en) * 1993-06-21 1995-05-09 Ast Research, Inc. Universal power converter with single, shared power transformation circuit
US6362610B1 (en) * 2001-08-14 2002-03-26 Fu-I Yang Universal USB power supply unit
JP3522251B2 (en) * 2001-11-27 2004-04-26 日本電気株式会社 Power system
CN101009435A (en) * 2006-01-23 2007-08-01 金桥科技股份有限公司 Power supply of the detectable and adjustable voltage and current and its method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103001261A (en) * 2011-09-08 2013-03-27 硕天科技股份有限公司 Universal charger with USB (universal serial bus)
CN103001261B (en) * 2011-09-08 2015-05-20 宁远县硕宁电子有限公司 Universal charger with USB (universal serial bus)
CN104332779A (en) * 2014-11-07 2015-02-04 广安市华蓥山领创电子有限公司 Smart retractable data line
CN104332779B (en) * 2014-11-07 2017-04-12 广安市华蓥山领创电子有限公司 Smart retractable data line
WO2017004877A1 (en) * 2015-07-03 2017-01-12 深圳罗马仕科技有限公司 Power extension socket

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