CN103760939B - Power source supply method, power-supplying circuit, power supply and terminal device - Google Patents
Power source supply method, power-supplying circuit, power supply and terminal device Download PDFInfo
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- CN103760939B CN103760939B CN201410019009.7A CN201410019009A CN103760939B CN 103760939 B CN103760939 B CN 103760939B CN 201410019009 A CN201410019009 A CN 201410019009A CN 103760939 B CN103760939 B CN 103760939B
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Abstract
Disclosure embodiment discloses a kind of power source supply method, power-supplying circuit, power supply and terminal device, first described power source supply method obtains the load current of load blocks, different feed circuit are selected according to different load currents, when load current is less than predetermined current, the output voltage of the power supply in terminal device is power load modules after LDO step-down, now, compared to the mode through DC/DC converter and LDO step-down, independent employing low pressure difference linear voltage regulator is that the efficiency of power load modules is higher; When load current is greater than predetermined current, the output voltage of the power supply in terminal device is first through the step-down of DC/DC converter, load blocks is supplied to again after LDO step-down, compared with the mode adopting low pressure difference linear voltage regulator step-down to power separately, the power supplying efficiency through DC-to-DC converter and the step-down of low pressure difference linear voltage regulator two-stage is higher.Therefore, described power source supply method can improve the power supplying efficiency of power supply.
Description
Technical field
The disclosure relates to electronic circuit technology field, particularly relates to a kind of power source supply method, power-supplying circuit, power supply and terminal device.
Background technology
Along with the frequency of operation of terminal device (such as, smart mobile phone, palm PC, panel computer etc.) increases day by day, in terminal device, the discharge current of power supply also can increase thereupon.But in terminal device, the capacity of power supply increases difficulty very greatly, and therefore, the power supplying efficiency of power supply seems especially important.Power supplying efficiency is higher, and the time that equal electricity uses is longer.
Because in terminal device, the output voltage of battery is greater than the voltage in terminal device needed for modules work, therefore, need voltage reduction module to be supplied to modules by after the output voltage step-down of battery, voltage stabilizing, thus ensure that described modules normally works.
Described voltage reduction module can adopt DC/DC converter and/or LDO(lowdropoutregulator usually, low pressure difference linear voltage regulator), the input power of most of LDO is provided by the battery in terminal device, the output efficiency of LDO equals the ratio of output voltage and input voltage, when the output voltage of LDO is lower, input, the output voltage difference of LDO are more, and now, the output efficiency of LDO is very low.
Summary of the invention
The disclosure embodiments provides a kind of power source supply method, power-supplying circuit, power supply and terminal device, to solve the low problem of power supplying efficiency of the prior art.
In order to solve the problems of the technologies described above, disclosure embodiment discloses following technical scheme:
First aspect, the disclosure provides a kind of power source supply method, comprising: the load current obtaining the load blocks that power-supplying circuit is electrically connected; Judge the size of described load current and predetermined current, when judging that described load current is less than described predetermined current, controlling power supply after low pressure difference linear voltage regulator step-down, is described power load modules; When judging that described load current is greater than described predetermined current, controlling power supply after DC-to-DC converter step-down, being supplied to low pressure difference linear voltage regulator, and being described power load modules by the output of described low pressure difference linear voltage regulator.
In conjunction with first aspect, in the first possible implementation of first aspect, the load current of the load blocks that described acquisition power-supplying circuit is corresponding, in the following way: the loadtype obtaining the corresponding load blocks of described power-supplying circuit; Corresponding relation between query load type and load current, obtains the load current that described loadtype is corresponding.
In conjunction with first aspect, in the implementation that the second of first aspect is possible, the load current of the load blocks that described acquisition power-supplying circuit is corresponding, in the following way:
By being series at the current detection module between the output terminal of low pressure difference linear voltage regulator and load, detect the load current flowing through described load blocks.
In conjunction with two kinds of first aspect possible implementations, in the third possible implementation of first aspect, described method also comprises: store the corresponding relation between the load current of described load blocks and the loadtype of described load blocks detecting and obtain.
In conjunction with first aspect, in the 4th kind of possible implementation of first aspect, the load current of the load blocks that described acquisition power-supplying circuit is corresponding, in the following way: obtain the load current of load blocks that power-supplying circuit is electrically connected and the in running order Annual distribution information of described load blocks; The load current of the corresponding load blocks of described feed circuit is determined according to load current and described Annual distribution information.
Second aspect, the disclosure provides a kind of power-supplying circuit, comprising: low pressure difference linear voltage regulator, DC-to-DC converter, the first gauge tap, the second gauge tap and control module;
The input end of described DC-to-DC converter is electrically connected the output terminal of power supply, the output terminal of DC-to-DC converter is electrically connected the first end of described first gauge tap, and the second end of described first gauge tap is electrically connected the first input end of described low pressure difference linear voltage regulator; The output terminal of described power supply is electrically connected the first end of the second gauge tap, and the second input end of described low pressure difference linear voltage regulator is electrically connected the second end of the second gauge tap, and the output terminal of described low pressure difference linear voltage regulator is electrically connected load blocks; The control end of described first gauge tap is electrically connected the different output terminal of described control module respectively with the control end of described second gauge tap;
Described control module obtains the load current of described load blocks, judges the size of described load current and predetermined current; When described load current is less than predetermined current, described control module controls described first gauge tap shutoff, the second gauge tap closes, and power supply is described power load modules after low pressure difference linear voltage regulator step-down; When described load current is greater than predetermined current, described control module controls closed, described second gauge tap of described first gauge tap and turns off, power supply is supplied to low pressure difference linear voltage regulator after DC-to-DC converter step-down, and is described power load modules by the output of described low pressure difference linear voltage regulator.
In conjunction with second aspect, in the first possible implementation of second aspect, described control module comprises: the first acquiring unit, for obtaining the loadtype of the corresponding load blocks of described power-supplying circuit; Query unit, for the corresponding relation between query load type and load current, obtains the load current that described loadtype is corresponding.
In conjunction with second aspect, in the implementation that the second of second aspect is possible, described control module comprises: second acquisition unit, for obtaining load current corresponding to load blocks that power-supplying circuit is electrically connected and the in running order Annual distribution information of described load blocks; Determining unit, for determining the load current of the load blocks that described power-supplying circuit is electrically connected according to load current and described Annual distribution information.
In conjunction with second aspect, in the third possible implementation of second aspect, described power-supplying circuit also comprises: be series at the current detection module between described low pressure difference linear voltage regulator and described load blocks, and the electric connection of described current detection module and control module, with the load current making described control module detect described load blocks.
In conjunction with the third possible implementation of second aspect, in the 4th kind of possible implementation of second aspect, described current detection module is for detecting resistance, described detection resistant series is between the output terminal and described load blocks of described low pressure difference linear voltage regulator, and the two ends of described detection resistance are electrically connected the voltage detecting end of described control module respectively.
In conjunction with the first possible implementation of second aspect or second aspect to any one in the 4th kind of possible implementation of second aspect, in the 5th kind of possible implementation of second aspect, described first gauge tap and described second gauge tap are power switch pipe, the first end of described first gauge tap and described second gauge tap is the input end of described power switch pipe, second end is the output terminal of described power switch pipe, and control end is the control end of described power switch pipe.
The third aspect, the disclosure also provides a kind of power supply, comprise: power supply, DC-to-DC converter, a n low pressure difference linear voltage regulator, control module, n the first gauge tap and n the second gauge tap, a described n low pressure difference linear voltage regulator comprises m output terminal, a described m output terminal is electrically connected m load blocks respectively, wherein, n is positive integer, and m is the positive integer being not less than n;
The first input end of a described n low pressure difference linear voltage regulator is electrically connected the output terminal of described DC-to-DC converter respectively by n the first gauge tap, the input end of described DC-to-DC converter is electrically connected the output terminal of described power supply;
Second input end of a described n low pressure difference linear voltage regulator is electrically connected the output terminal of described power supply respectively by n the second gauge tap, m output terminal of a described n low pressure difference linear voltage regulator is electrically connected m load blocks respectively;
The first end of described first gauge tap is electrically connected the output terminal of described DC-to-DC converter, second end is electrically connected the first input end of described low pressure difference linear voltage regulator, control end is electrically connected first output terminal of described control module, and the control end of n the first gauge tap is electrically connected the individual first different output terminal of n of control module respectively;
The first end of described second gauge tap is electrically connected the output terminal of described power supply, second end is electrically connected the second input end of described low pressure difference linear voltage regulator, control end is electrically connected an output terminal of described control module, and the control end of n the second gauge tap is electrically connected the individual second different output terminal of n of control module respectively;
Described control module obtains the load current of each load blocks, and judges the size of described load current and predetermined current respectively;
When described load current is less than predetermined current, described control module described first gauge tap controlled in the feed circuit of described load blocks place turns off, the second gauge tap closes, and described power supply is described power load modules after low pressure difference linear voltage regulator step-down;
When described load current is greater than predetermined current, described control module described first gauge tap controlled in the feed circuit of described load blocks place closes, the second gauge tap turns off, described power supply is supplied to low pressure difference linear voltage regulator after DC-to-DC converter step-down, and is described power load modules by the output of described low pressure difference linear voltage regulator.
In conjunction with the third aspect, in the first possible implementation of the third aspect, described control module comprises: the first acquiring unit, for obtaining the loadtype of the corresponding load blocks of described power-supplying circuit; Query unit, for the corresponding relation between query load type and load current, obtains the load current that described loadtype is corresponding.
In conjunction with the third aspect, in the implementation that the second of the third aspect is possible, described power supply also comprises: x current detection module, and x is the positive integer being not more than m;
A described x current detection module is series between the output terminal of described low pressure difference linear voltage regulator and x load blocks respectively, a described x current detection module and described control module are electrically connected, and obtain load current in x load blocks respectively to make control module.
In conjunction with the third aspect, in the third possible implementation of the third aspect, described current detection module is for detecting resistance, described detection resistant series is between the output terminal and described load blocks of described low pressure difference linear voltage regulator, and the two ends of described detection resistance are electrically connected the voltage detecting end of described control module respectively.
Fourth aspect, the disclosure also provides a kind of terminal device, comprises load blocks, and any one power supply that the third aspect provides.
The beneficial effect of disclosure embodiment comprises: described power source supply method is according to the size cases of unequally loaded load current, select different feed circuit, wherein, the size between load current and predetermined current is judged by control module, when described load current is less than predetermined current, controls power supply and be supplied to load blocks after low pressure difference linear voltage regulator step-down; When load current is greater than predetermined current, controls power supply first through DC-to-DC converter step-down, then be supplied to load blocks after low pressure difference linear voltage regulator step-down.Output efficiency due to low pressure difference linear voltage regulator equals the ratio of its output voltage and input voltage; When the output current of DC-to-DC converter is less, its output efficiency is very low.Therefore, when load current is less than predetermined current, the output efficiency of DC-to-DC converter is very low, now, as compared to through the mode of DC-to-DC converter with the step-down of low pressure difference linear voltage regulator two-stage, independent employing low pressure difference linear voltage regulator is that the efficiency of power load modules is higher; When load current is greater than predetermined current, the output efficiency of DC-to-DC converter is higher, compared with the mode adopting low pressure difference linear voltage regulator step-down to power separately, the power supplying efficiency through DC-to-DC converter and the step-down of low pressure difference linear voltage regulator two-stage is higher.
Should be understood that, it is only exemplary that above general description and details hereinafter describe, and can not limit the disclosure.
Accompanying drawing explanation
In order to be illustrated more clearly in disclosure embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, for those of ordinary skills, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of a kind of power source supply method of disclosure embodiment;
Fig. 2 is the structural representation of a kind of power-supplying circuit of disclosure embodiment;
Fig. 3 is the structural representation of the another kind of power-supplying circuit of disclosure embodiment;
Fig. 4 is the structural representation of a kind of power supply of disclosure embodiment;
Fig. 5 is the structural representation of the another kind of power supply of disclosure embodiment.
By above-mentioned accompanying drawing, illustrate the embodiment that the disclosure is clear and definite more detailed description will be had hereinafter.These accompanying drawings be not in order to limited by any mode the disclosure design scope, but by reference to specific embodiment for those skilled in the art illustrate concept of the present disclosure.
Embodiment
The Terminal Equipment Power power supply mode that disclosure embodiment provides comprises two kinds of modes, a kind of be the power supply of terminal device directly for low pressure difference linear voltage regulator LDO powers, then by being power load modules after LDO step-down, the power supplying efficiency η of LDO
lDOas shown in Equation 1:
η
1=η
lDO=U
o/ U
i(formula 1)
In formula 1, Uo is the output voltage of LDO, U
ifor the input voltage of LDO, in this kind of power supply mode, the input voltage of LDO is the voltage Vbat of power supply in terminal device.When the output voltage of LDO differs more with input voltage, power supplying efficiency is very low.
Another kind of power supply mode be the power supply of terminal device after the step-down of DC/DC converter, then to power for LDO, then by being power load modules after LDO step-down, the power supplying efficiency η of this kind of power supply mode
lDOas shown in Equation 2:
In formula 2, Uo is the output voltage of LDO, V
dcdcfor the output voltage of DC/DC converter, η
dcdcfor the output efficiency of DC/DC converter, the output efficiency of DC/DC converter is relevant with the output current of DC/DC converter, and described output current is equal with load current, when load current is larger, and η
dcdcgenerally be greater than 90%; When load current is very little, η
dcdcgenerally be far smaller than 90%.
Technical scheme in the disclosure is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in disclosure embodiment, technical scheme in disclosure embodiment is clearly and completely described, obviously, described embodiment is only disclosure part embodiment, instead of whole embodiments.Based on the embodiment in the disclosure, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of disclosure protection.
Refer to Fig. 1, show the schematic flow sheet of a kind of power source supply method that disclosure embodiment provides, the method is applied to the Power supply that terminal device utilizes its inside.As shown in Figure 1, said method comprising the steps of:
S110, obtains the load current of the load blocks that power-supplying circuit is electrically connected.
In terminal device, each application module all can be considered as a load blocks, and the operating voltage of each application module may be different, therefore, need the concrete condition for each load blocks to adopt the feed circuit of corresponding output voltage to be power load modules; And the load current of each load blocks may be different, select the feed circuit of related circuit structure according to load current.
In an embodiment of the present disclosure, for the load blocks that load current is known, first, the loadtype of the corresponding load blocks of described power-supplying circuit is obtained; Wherein, described loadtype can be the type of concrete application module, such as, and clock application module, alarm clock application module, music player application module and telephony feature application module etc.
Then, the corresponding relation between query load type and load current, obtains the load current that described loadtype is corresponding.
Such as, load current when smart mobile phone is called is fixing substantially, and can be detected by testing circuit in advance, and therefore, the application module called is the load blocks that load current is known.On terminal device, the load current of mounted application module all can be detected in advance by this kind of mode and obtain, and the corresponding relation set up between load blocks and load current, when the load blocks in terminal device starts, the load current of described load blocks can be obtained by the described corresponding relation of inquiry.
In another embodiment of the present disclosure, for the load blocks of UNKNOWN TYPE, by being series at the current detection module between the output terminal of power-supplying circuit and load blocks, detect the load current flowing through described load blocks.Wherein, described current detection module can be realized by current sense resistor, and sample rate current detects the voltage at resistance two ends, and calculate the electric current flowing through current sense resistor according to ohm law, namely this electric current flows through the load current of load blocks.
Preferably, after load current load blocks being detected by current detection module, described load current can also be recorded, corresponding relation between the load current storing described load blocks and correspondence, when next time is described power load modules, corresponding relation between the load current of direct query load module and correspondence, obtains the load current that described load blocks is corresponding, without the need to all detecting the load current of this load blocks at every turn.
In another embodiment of the present disclosure, for the load blocks of UNKNOWN TYPE, after load current load blocks being detected first, after this all can detect the load current of load blocks at every turn.Can by first obtaining load current corresponding to load blocks that power-supplying circuit is electrically connected and the in running order Annual distribution information of described load blocks; Then, the load current of the corresponding load blocks of described feed circuit is determined according to load current and described Annual distribution information.
Terminal device uses the custom of application module by counting user, determine that certain power-supplying circuit provides the situation of load current for load blocks that it is electrically connected, such as, user always browses " microblogging " in 20:00 ~ 22:00 time period at night, then without the need to all gathering the load current of this load blocks at every turn, according to the load current of the use habit determination load blocks of user.
S120, judges whether described load current is less than predetermined current, if so, then performs step S130; Otherwise, perform step S140.
When judging that described load current is less than described predetermined current, in step S130, controlling power supply after LDO step-down, is described power load modules.
For the LDO in feed circuit, its output voltage can be determined; For certain terminal device, the supply voltage Vbat of its internal electric source also immobilizes; Another formula 1 is equal with formula 2, can obtain following formula:
η
dcdc=V
dcdc/ V
bat(formula 3)
The η that formula 3 calculates
dcdccorresponding electric current is described predetermined current.
Such as, the output voltage of the supply voltage Vbat of terminal device internal electric source to be the output voltage of 4V, DC/DC converter be 3.6V, LDO is 1.8V, now, and to calculate predetermined current be DC/DC converter output efficiency electric current corresponding when being 90%.When load current is less than predetermined current, DC/DC converter output efficiency is less than 90%, now, and η
1> η
2, therefore adopting only through the power supply mode of LDO step-down, will be directly power load modules after power supply step-down by LDO.
When judging that described load current is greater than described predetermined current, in step S140, controlling power supply after DC/DC converter and LDO step-down, is described power load modules by LDO.
Adopt above-mentioned example, when load current is greater than predetermined current, DC/DC converter output efficiency is greater than 90%, now η
1< η
2, therefore adopt the power supply mode of DC/DC converter and the step-down of LDO two-stage, the power supply in terminal device, first through the step-down of DC/DC converter, then after LDO step-down, is finally power load modules by LDO.
It should be noted that, when load current equals predetermined current, the power supplying efficiency of two kinds of power supply modes is equal, and any one adopting in two kinds of power supply modes can.
The power source supply method that the present embodiment provides, be applied in the feed circuit of terminal device, first described method obtains the load current of load blocks, different feed circuit are selected according to different load currents, when load current is less than predetermined current, the output voltage of the power supply in terminal device is power load modules after LDO step-down, now, compared to the mode through DC/DC converter and the step-down of LDO two-stage, independent employing low pressure difference linear voltage regulator is that the efficiency of power load modules is higher; When load current is greater than predetermined current, the output voltage of the power supply in terminal device is first through the step-down of DC/DC converter, load blocks is supplied to again after LDO step-down, compared with the mode adopting low pressure difference linear voltage regulator step-down to power separately, the power supplying efficiency through DC-to-DC converter and the step-down of low pressure difference linear voltage regulator two-stage is higher.Therefore, described power source supply method can improve the power supplying efficiency of power supply.
By the description of above embodiment of the method, those skilled in the art can be well understood to the mode that the disclosure can add required general hardware platform by software and realize, hardware can certainly be passed through, but in a lot of situation, the former is better embodiment.Based on such understanding, technical scheme of the present disclosure can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the disclosure.And aforesaid storage medium comprises: ROM (read-only memory) (ROM), random-access memory (ram), magnetic disc or CD etc. various can be program code stored medium.
Corresponding to above-mentioned power source supply method, the disclosure additionally provides power-supplying circuit.
Refer to Fig. 2, show the structural representation of a kind of power-supplying circuit of disclosure embodiment, described power-supplying circuit is applied to terminal device, and described terminal device at least comprises power supply 400 and load blocks 500.As shown in Figure 2, described power-supplying circuit comprises: DC/DC converter 100, low pressure difference linear voltage regulator LDO200, the first gauge tap S1, the second gauge tap S2 and control module 300.
The input end of DC/DC converter 100 is electrically connected the output terminal of power supply 400, the output terminal of DC/DC converter 100 is electrically connected the first end of the first gauge tap S1, second end of the first gauge tap S1 is electrically connected the first input end of LDO200, and the output terminal of LDO200 is electrically connected load blocks 500.
Second input end of LDO200 is electrically connected the output terminal of power supply 400 by the second gauge tap S2, wherein, the first end of the second gauge tap S2 is electrically connected the output terminal of power supply 400, and second end of the second gauge tap S2 is electrically connected second input end of LDO200.
The control end of the first gauge tap S1 is electrically connected the first output terminal (not shown) of control module 300, and the control end of the second gauge tap S2 is electrically connected the second output terminal (not shown) of control module 300.
In an embodiment of the present disclosure, described first gauge tap S1 and the second gauge tap S2 can be power switch pipe, the input end of power switch pipe is the first end of S1, S2, and the output terminal of power tube switch is second end of S1, S2, and the control end of power switch is the control end of S1, S2.
In another embodiment of the present disclosure, S1, S2 can be realized by metal-oxide-semiconductor, and wherein, the grid of metal-oxide-semiconductor is the control end of S1, S2, and the drain electrode of NMOS tube is the first end of S1, S2, and the source electrode of NMOS tube is second end of S1, S2; The source electrode of PMOS is the first end of S1, S2, and the drain electrode of PMOS is second end of S1, S2.
Control module 300, by detecting the size of the load current of load blocks 500, controls the closed of the first gauge tap S1 and the second gauge tap S2 or off state.
In an embodiment of the present disclosure, for the load blocks that load current is known, the process that control module obtains the load current of load blocks can be realized by the first acquiring unit and query unit.
First acquiring unit, for obtaining the loadtype of the corresponding load blocks of described power-supplying circuit;
Query unit, for the corresponding relation between query load type and load current, obtains the load current that described loadtype is corresponding.
When control module 300 judges that the load current obtained is less than predetermined current, control the first gauge tap S1 to disconnect, simultaneously, control the second gauge tap S2 to close, namely the electric connection circuit between power supply 400 and LDO200 is connected, the output voltage of power supply 400 is directly supplied to LDO200, is supplied to load blocks 500 after LDO step-down.
When control module 300 judges that load current is greater than predetermined current, control the first gauge tap S1 to close, simultaneously, control the second gauge tap S1 to close, namely the electric connection circuit between DC/DC converter 100 and LDO200 is connected, make the output voltage of power supply 400 through DC/DC converter 100 step-down, reoffer after carrying out step-down to LDO200, for load blocks 500 is powered.
The power-supplying circuit that disclosure embodiment provides, is applied in terminal device, is provided with the second gauge tap between power supply and LDO; Between the output terminal and LDO of DC/DC converter, be provided with the first gauge tap, control module obtains load current, and controls closing and off state of the first gauge tap and the second gauge tap according to the size of load current and predetermined current; When load current is less than predetermined current, control S1 turns off, and control S2 closes simultaneously, and power supply is by means of only being power load modules after LDO step-down; When load current is greater than predetermined current, control S1 closes, and control S2 turns off simultaneously, and power supply is power load modules after passing through DC/DC converter and the step-down of LDO two-stage.Described power-supplying circuit can select according to different load currents the power supply mode that power supplying efficiency is higher, avoids load current size how all to adopt a kind of power supply mode to power, this improves the bulk supply efficiency of power supply.
Refer to Fig. 3, show the structural representation of the another kind of power-supplying circuit of disclosure embodiment, the power-supplying circuit that the present embodiment provides is for the load blocks of load current the unknown.
As shown in Figure 3, described power-supplying circuit sets up the current detection module 600 be connected between LDO200 and load blocks 500 on the basis of Fig. 2.
Current detection module 600 and control module 300 are electrically connected, and detect to make control module 300 load current obtaining load blocks.
In an embodiment of the present disclosure, described current detection module 600 can realize by detecting resistance, detect resistant series between the output terminal and load blocks of LDO, and two of control module 300 input ends is parallel to the two ends detecting resistance.Control module 300, by the voltage at input end acquisition testing resistance two ends, calculates the electric current flowing through and detect resistance, namely obtains the electric current flowing through load blocks according to ohm law.Detection resistance cost is low, structure is simple.
Preferably, after current detection module 600 detects the load current of load blocks, the corresponding relation between described load blocks and corresponding load current can be stored, upper be once described power load modules time, corresponding relation between the described load blocks of direct inquiry and corresponding load current, obtain the load current of described load blocks, without the need to all detecting the load current of this load blocks at every turn.
In another embodiment of the present disclosure, for the load blocks of load current the unknown, after load current load blocks being detected first, after this all can detect the load current of load blocks, the process obtaining the load current of load blocks can be realized by second acquisition unit and determining unit at every turn.
Second acquisition unit, for obtaining load current corresponding to load blocks that power-supplying circuit is electrically connected and the in running order Annual distribution information of described load blocks;
Determining unit, for determining the load current of the corresponding load blocks of described feed circuit according to load current and described Annual distribution information.
In the present embodiment, the use habit of application module is used by control module counting user, then, according to the size of the load current of temporal information determination current power feed circuit, such as, user always browses " microblogging " in 20:00 ~ 22:00 time period at night, then control module may think that the load current of power-supplying circuit is the electric current of " microblogging " application module, without the need to all gathering the load current of load blocks at every turn in 20:00 ~ 22:00 time period at night.
The power-supplying circuit that the present embodiment provides is applicable to the scene of load current the unknown, described power-supplying circuit can detect by current detection module the electric current flowing through load blocks, then, judge the size of load current and the predetermined current detected, the first gauge tap is controlled according to judged result, closed and the off state of the second gauge tap, thus realize power-supplying circuit and can select according to the size of load current the power supply mode that power supplying efficiency is higher, load current size is avoided how all to adopt a kind of power supply mode to power, therefore, improve the bulk supply efficiency of power supply.
Corresponding to above-mentioned power-supplying circuit, the disclosure additionally provides the power supply being applied to terminal device.
Refer to Fig. 4, show the structural representation of the power supply that disclosure embodiment provides, described application of power in terminal device, for the load blocks of terminal device provides operating voltage.
As shown in Figure 4, described power supply comprises: power supply 400, DC/DC converter 100, a n LDO200, control module 300, n the first gauge tap S1 and n the second gauge tap S2.Wherein, n LDO comprises m output terminal, and m output terminal is electrically connected m load blocks respectively, and n is positive integer, and m is the positive integer being not less than n, and wherein some LDO may comprise multiple output terminal.
Due to the finite volume of terminal device, and the volume of DC/DC converter 100 is comparatively large, is not easy to be integrated in power supply chip, therefore usually arranges a DC/DC converter in the power supply chip of terminal device; The small volume of LDO, is convenient to be integrated in power supply chip, usually arranges multiple LDO in the power supply chip of terminal device, and each LDO is at least one power load modules in terminal device.
Each LDO all comprises first input end and the second input end, the first input end of each LDO is all electrically connected the output terminal of DC/DC converter 100 by the first gauge tap S1, the first end of S1 is electrically connected the output terminal of DC/DC converter 100, and second end of S1 is electrically connected the first input end of LDO200.
Second input end of each LDO is all electrically connected the output terminal of power supply 400 by the second gauge tap S2, the first end of S2 is electrically connected the output terminal of power supply 400, and second end of S2 is electrically connected second input end of LDO200.
The control end of each first gauge tap S1 is electrically connected the first different output terminal (not shown) of control module 300, and the control end of each second gauge tap S2 is electrically connected the second different output terminal (not shown) of control module 300.Control module 300 has n the first output terminal, n the second output terminal.
It should be noted that, the first gauge tap S1 and the second gauge tap S2 all can be realized by the switching tube such as power switch pipe or metal-oxide-semiconductor, repeats no more herein.
Control module 300 obtains the load current of each load blocks, and judges the size between the load current of acquisition and predetermined current respectively.
The power supply that the present embodiment provides is applicable to the known sight of the load of load blocks, namely the load current that the application module in terminal device is corresponding is determined in advance, now, the mode that control module 300 obtains load current corresponding to terminal device internal burden module is identical with the mode obtaining load current in the power-supplying circuit shown in Fig. 2, is realized by the first acquiring unit and query unit.
First acquiring unit, for obtaining the loadtype of the corresponding load blocks of described power-supplying circuit.
Query unit, for query load type and load current corresponding relation, obtains the load current that described loadtype is corresponding.
When the load current of i-th load blocks obtained is less than predetermined current, described control module 300 the first gauge tap S1 controlled in i-th load blocks place feed circuit turns off, the second gauge tap S2 closes, and described power supply is through LDO
ibe described i-th power load modules after step-down;
When the load current of described i-th load blocks is greater than predetermined current, the described control module 300 described first gauge tap S1 controlled in described i-th load blocks place feed circuit closes, the second gauge tap S2 turns off, and described power supply is supplied to LDO after the step-down of DC/DC converter
i, and by described LDO
ioutput be described power load modules.Wherein, i is the positive integer being not more than n.
The power supply that the present embodiment provides, is applied in terminal device, is each power load modules in terminal device.Described power supply is provided with the second gauge tap between the internal power supply and LDO of terminal device; Between the output terminal and LDO of DC/DC converter, be provided with the first gauge tap, control module obtains load current, and controls closing and off state of the first gauge tap and the second gauge tap according to the size of load current and predetermined current; When load current is less than predetermined current, control S1 turns off, and control S2 closes simultaneously, and power supply is by means of only being power load modules after LDO step-down; When load current is greater than predetermined current, control S1 closes, and control S2 turns off simultaneously, and power supply is power load modules after passing through DC/DC converter and the step-down of LDO two-stage.Described power-supplying circuit can select according to different load currents the power supply mode that power supplying efficiency is higher, avoids load current size how all to adopt a kind of power supply mode to power, this improves the bulk supply efficiency of power supply.
Refer to the structural representation that Fig. 5 shows the another kind of power supply of disclosure embodiment, described power supply is applicable to the sight of load current the unknown of load blocks, sets up the load current that current detection module detects load blocks.
As shown in Figure 5, described power supply has set up x current detection module 600 on the basis of power supply shown in Fig. 4, wherein, at the load blocks series current detection module 600 of load current the unknown, the known load blocks of load current is without the need to series current detection module, therefore, x is the positive integer being not more than m.
Each current detection module 600 is connected between the load blocks of LDO and load current the unknown, and each current detection module 600 is electrically connected with control module 300, described current detection module 600 detects the load current flowing through described load blocks, and makes described control module obtain the load current of described load blocks.
In an embodiment of the present disclosure, described current detection module can realize by detecting resistance, detect resistant series between the output terminal and the load blocks of correspondence of LDO, and two of control module 300 input ends is parallel to the two ends detecting resistance.Control module 300, by the voltage at acquisition testing resistance two ends, calculates the electric current flowing through and detect resistance, namely obtains the electric current flowing through load blocks according to ohm law, detection resistance is low as current detection module cost, structure is simple.
Preferably, in another embodiment of the present disclosure, after current detection module 600 detects the load current of i-th load blocks, control module 300 stores the mapping relations between the load current of described load blocks and correspondence, upper be once i-th power load modules time, can mapping relations between the load current of directly query load module and correspondence, obtain the load current that i-th load blocks is corresponding, without the need to all detecting the load current of this load blocks at every turn, thus reduce the requirement to control module processing power.
In another embodiment of the present disclosure, for the load blocks of load current the unknown, after load current load blocks being detected first, after this all can detect the load current of load blocks, the process obtaining the load current of i-th load blocks can be realized by second acquisition unit and determining unit at every turn.
Second acquisition unit, for obtaining load current corresponding to i-th load blocks and the in running order Annual distribution information of described load blocks;
Determining unit, for determining the load current of described i-th load blocks according to load current and described Annual distribution information.
The power supply that the present embodiment provides is applicable to the scene of load current the unknown, described power-supplying circuit can detect by current detection module the electric current flowing through load blocks, then, judge the size of load current and the predetermined current detected, the first gauge tap is controlled according to judged result, closed and the off state of the second gauge tap, thus realize power-supplying circuit and can select according to the size of load current the power supply mode that power supplying efficiency is higher, load current size is avoided how all to adopt a kind of power supply mode to power, therefore, improve the bulk supply efficiency of power supply.
As another aspect, disclosure embodiment also provides a kind of terminal device, described terminal device at least comprises the power supply that load blocks and above-described embodiment provide, control module in described power supply can be realized by power-supply management system, preferably, power supply can be connected with the processor in terminal device by power-supply management system, thus realizes management charging, electric discharge by power-supply management system, and the function such as power managed.
Each embodiment in this instructions all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually see, what each embodiment stressed is the difference with other embodiments.Especially, for device embodiment, because it is substantially similar to embodiment of the method, so describe fairly simple, relevant part illustrates see the part of embodiment of the method.Device embodiment described above is only schematic, the wherein said unit illustrated as separating component or can may not be and physically separates, parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of module wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.Those of ordinary skill in the art, when not paying creative work, are namely appreciated that and implement.
It should be noted that, in this article, the such as relational terms of " first " and " second " etc. and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
The above is only embodiment of the present disclosure, those skilled in the art is understood or realizes the disclosure.To be apparent to one skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present disclosure, can realize in other embodiments.Therefore, the disclosure can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (16)
1. a power source supply method, is characterized in that, comprising:
Obtain the load current of the load blocks that power-supplying circuit is electrically connected;
Judge the size of described load current and predetermined current, when judging that described load current is less than described predetermined current, controlling power supply after low pressure difference linear voltage regulator step-down, is described power load modules;
When judging that described load current is greater than described predetermined current, controlling described power supply after DC-to-DC converter step-down, being supplied to low pressure difference linear voltage regulator, and be described power load modules by the output of described low pressure difference linear voltage regulator.
2. method according to claim 1, is characterized in that, the load current of the load blocks that described acquisition power-supplying circuit is corresponding, in the following way:
Obtain the loadtype of the corresponding load blocks of described power-supplying circuit;
Corresponding relation between query load type and load current, obtains the load current that described loadtype is corresponding.
3. method according to claim 1, is characterized in that, the load current of the load blocks that described acquisition power-supplying circuit is corresponding, in the following way:
By being series at the current detection module between the output terminal of low pressure difference linear voltage regulator and load, detect the load current flowing through described load blocks.
4. method according to claim 3, is characterized in that, also comprises: store the corresponding relation between the load current of described load blocks and the loadtype of described load blocks detecting and obtain.
5. method according to claim 1, is characterized in that, the load current of the load blocks that described acquisition power-supplying circuit is corresponding, in the following way:
Obtain the load current of load blocks that power-supplying circuit is electrically connected and the in running order Annual distribution information of described load blocks;
The load current of the corresponding load blocks of described feed circuit is determined according to load current and described Annual distribution information.
6. a power-supplying circuit, is characterized in that, comprising: low pressure difference linear voltage regulator, DC-to-DC converter, the first gauge tap, the second gauge tap and control module;
The input end of described DC-to-DC converter is electrically connected the output terminal of power supply, the output terminal of DC-to-DC converter is electrically connected the first end of described first gauge tap, and the second end of described first gauge tap is electrically connected the first input end of described low pressure difference linear voltage regulator;
The output terminal of described power supply is electrically connected the first end of the second gauge tap, and the second input end of described low pressure difference linear voltage regulator is electrically connected the second end of the second gauge tap, and the output terminal of described low pressure difference linear voltage regulator is electrically connected load blocks;
The control end of described first gauge tap is electrically connected the different output terminal of described control module respectively with the control end of described second gauge tap;
Described control module obtains the load current of described load blocks, judges the size of described load current and predetermined current;
When described load current is less than predetermined current, described control module controls described first gauge tap shutoff, the second gauge tap closes, and described power supply is described power load modules after low pressure difference linear voltage regulator step-down;
When described load current is greater than predetermined current, described control module controls closed, described second gauge tap of described first gauge tap and turns off, described power supply is supplied to low pressure difference linear voltage regulator after DC-to-DC converter step-down, and is described power load modules by the output of described low pressure difference linear voltage regulator.
7. power-supplying circuit according to claim 6, is characterized in that, described control module comprises:
First acquiring unit, for obtaining the loadtype of the corresponding load blocks of described power-supplying circuit;
Query unit, for the corresponding relation between query load type and load current, obtains the load current that described loadtype is corresponding.
8. power-supplying circuit according to claim 6, is characterized in that, described control module comprises:
Second acquisition unit, for obtaining load current corresponding to load blocks that power-supplying circuit is electrically connected and the in running order Annual distribution information of described load blocks;
Determining unit, for determining the load current of the load blocks that described power-supplying circuit is electrically connected according to load current and described Annual distribution information.
9. power-supplying circuit according to claim 6, is characterized in that, also comprises:
Be series at the current detection module between described low pressure difference linear voltage regulator and described load blocks, and the electric connection of described current detection module and control module, with the load current making described control module detect described load blocks.
10. power-supplying circuit according to claim 9, it is characterized in that, described current detection module is for detecting resistance, described detection resistant series is between the output terminal and described load blocks of described low pressure difference linear voltage regulator, and the two ends of described detection resistance are electrically connected the voltage detecting end of described control module respectively.
11. power-supplying circuits according to any one of claim 6-10, it is characterized in that, described first gauge tap and described second gauge tap are power switch pipe, the first end of described first gauge tap and described second gauge tap is the input end of described power switch pipe, second end is the output terminal of described power switch pipe, and control end is the control end of described power switch pipe.
12. 1 kinds of power supplys, it is characterized in that, comprise: power supply, DC-to-DC converter, a n low pressure difference linear voltage regulator, control module, n the first gauge tap and n the second gauge tap, a described n low pressure difference linear voltage regulator comprises m output terminal, a described m output terminal is electrically connected m load blocks respectively, wherein, n is positive integer, and m is the positive integer being not less than n;
The first input end of a described n low pressure difference linear voltage regulator is electrically connected the output terminal of described DC-to-DC converter respectively by n the first gauge tap, the input end of described DC-to-DC converter is electrically connected the output terminal of described power supply;
Second input end of a described n low pressure difference linear voltage regulator is electrically connected the output terminal of described power supply respectively by n the second gauge tap, m output terminal of a described n low pressure difference linear voltage regulator is electrically connected m load blocks respectively;
The first end of described first gauge tap is electrically connected the output terminal of described DC-to-DC converter, second end is electrically connected the first input end of described low pressure difference linear voltage regulator, control end is electrically connected first output terminal of described control module, and the control end of n the first gauge tap is electrically connected the individual first different output terminal of n of control module respectively;
The first end of described second gauge tap is electrically connected the output terminal of described power supply, second end is electrically connected the second input end of described low pressure difference linear voltage regulator, control end is electrically connected second output terminal of described control module, and the control end of n the second gauge tap is electrically connected the individual second different output terminal of n of control module respectively;
Described control module obtains the load current of each load blocks, and judges the size of described load current and predetermined current respectively;
When described load current is less than predetermined current, described control module described first gauge tap controlled in the feed circuit of described load blocks place turns off, described second gauge tap closes, and described power supply is described power load modules after low pressure difference linear voltage regulator step-down;
When described load current is greater than predetermined current, closed, described second gauge tap of described first gauge tap that described control module controls in the feed circuit of described load blocks place turns off, described power supply is supplied to low pressure difference linear voltage regulator after DC-to-DC converter step-down, and is described power load modules by the output of described low pressure difference linear voltage regulator.
13. power supplys according to claim 12, is characterized in that, described control module comprises:
First acquiring unit, for obtaining the loadtype of the corresponding load blocks of described power-supplying circuit;
Query unit, for the corresponding relation between query load type and load current, obtains the load current that described loadtype is corresponding.
14. power supplys according to claim 12, is characterized in that, also comprise: x current detection module, and x is the positive integer being not more than m;
A described x current detection module is series between the output terminal of described low pressure difference linear voltage regulator and x load blocks respectively, a described x current detection module and described control module are electrically connected, and obtain load current in x load blocks respectively to make described control module.
15. power supplys according to claim 12, it is characterized in that, described current detection module is for detecting resistance, described detection resistant series is between the output terminal and described load blocks of described low pressure difference linear voltage regulator, and the two ends of described detection resistance are electrically connected the voltage detecting end of described control module respectively.
16. 1 kinds of terminal devices, is characterized in that, comprise load blocks, and the power supply described in any one of claim 12-15.
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Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104065254B (en) * | 2014-07-16 | 2018-01-19 | 深圳开立生物医疗科技股份有限公司 | One kind output identification control unit and its inverter, system, control method |
| US9742209B2 (en) * | 2014-10-24 | 2017-08-22 | Silicon Laboratories Inc. | System and apparatus for improving the utility of regulators and associated methods |
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| CN107769524A (en) * | 2017-11-09 | 2018-03-06 | 杰华特微电子（杭州）有限公司 | power supply circuit and switching power supply |
| CN108512282B (en) * | 2018-05-16 | 2020-10-27 | 维沃移动通信有限公司 | Power supply circuit, terminal equipment and power supply control method thereof |
| CN112637991A (en) * | 2019-09-20 | 2021-04-09 | 台达电子工业股份有限公司 | Power supply applied to light emitting diode and operation method thereof |
| CN111158419B (en) * | 2020-01-13 | 2022-02-01 | 维沃移动通信有限公司 | Power supply circuit, current acquisition method and electronic equipment |
| CN111966203B (en) * | 2020-08-18 | 2023-12-26 | 浪潮商用机器有限公司 | Server and chip power supply device thereof |
| CN112018863B (en) * | 2020-08-31 | 2023-02-14 | 广州极飞科技股份有限公司 | Power supply adjusting circuit and power supply device |
| CN112910252A (en) * | 2021-01-27 | 2021-06-04 | 维沃移动通信有限公司 | Electronic equipment and control method thereof |
| CN112910251A (en) * | 2021-01-27 | 2021-06-04 | 维沃移动通信有限公司 | Electronic equipment and control method thereof |
| CN112910250B (en) * | 2021-01-27 | 2023-11-10 | 维沃移动通信有限公司 | Electronic equipment and control method thereof |
| CN113641235B (en) * | 2021-08-31 | 2024-06-18 | Oppo广东移动通信有限公司 | Power supply device, method, computer device, and storage medium |
| CN116418230B (en) * | 2023-06-12 | 2023-09-12 | 上海海栎创科技股份有限公司 | Wide-range filter capacitor LDO structure, system and use method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005085969A1 (en) * | 2004-02-05 | 2005-09-15 | Monolithic Power Systems Inc. | A dc/dc voltage regulator with automatic current sensing selectability for linear and switch mode operation utilizing a single voltage reference |
| US8169202B2 (en) * | 2009-02-25 | 2012-05-01 | Mediatek Inc. | Low dropout regulators |
| CN102642472A (en) * | 2011-02-17 | 2012-08-22 | 上海航鼎电子科技发展有限公司 | Method and device for power management and deadlock protective control of vehicle-mounted positioning and tracking equipment |
| KR20130142428A (en) * | 2012-06-19 | 2013-12-30 | 주식회사 하이소너스 | Power noise preventing circuit design for audio quality improvement |
-
2014
- 2014-01-15 CN CN201410019009.7A patent/CN103760939B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005085969A1 (en) * | 2004-02-05 | 2005-09-15 | Monolithic Power Systems Inc. | A dc/dc voltage regulator with automatic current sensing selectability for linear and switch mode operation utilizing a single voltage reference |
| US8169202B2 (en) * | 2009-02-25 | 2012-05-01 | Mediatek Inc. | Low dropout regulators |
| CN102642472A (en) * | 2011-02-17 | 2012-08-22 | 上海航鼎电子科技发展有限公司 | Method and device for power management and deadlock protective control of vehicle-mounted positioning and tracking equipment |
| KR20130142428A (en) * | 2012-06-19 | 2013-12-30 | 주식회사 하이소너스 | Power noise preventing circuit design for audio quality improvement |
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|---|---|
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