CN112701891B - Power supply method and device, electronic equipment and storage medium - Google Patents
Power supply method and device, electronic equipment and storage medium Download PDFInfo
- Publication number
- CN112701891B CN112701891B CN201911010710.1A CN201911010710A CN112701891B CN 112701891 B CN112701891 B CN 112701891B CN 201911010710 A CN201911010710 A CN 201911010710A CN 112701891 B CN112701891 B CN 112701891B
- Authority
- CN
- China
- Prior art keywords
- switching power
- power supplies
- ripple
- control signal
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/14—Arrangements for reducing ripples from dc input or output
- H02M1/15—Arrangements for reducing ripples from dc input or output using active elements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/157—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators with digital control
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The present disclosure relates to a power supply method, applied to an electronic device including at least two switching power supplies, the method including: generating control signals of the at least two switching power supplies according to the ripple parameters of the at least two switching power supplies; and controlling the working time sequences of the at least two switching power supplies according to the control signals, wherein ripples generated by different switching power supplies in the at least two switching power supplies working according to the working time sequences are mutually counteracted. The disclosure also provides a power supply device, an electronic device and a storage medium.
Description
Technical Field
The present disclosure relates to the field of electronic technologies, and in particular, to a power supply method and apparatus, an electronic device, and a storage medium.
Background
In the related art, it is all the more the case that a plurality of switching power supplies operate simultaneously. However, when a plurality of switching power supplies work simultaneously, ripples of the power supply circuit on the power supplies are randomly superposed; therefore, one or even multiple ripples are likely to be generated, which makes the power supply circuit very unstable and brings the danger of automatic shutdown of the equipment.
Disclosure of Invention
The disclosure provides a power supply method and device, electronic equipment and a storage medium.
According to a first aspect of the embodiments of the present disclosure, there is provided a power supply method applied in an electronic device including at least two switching power supplies, including:
generating control signals of the at least two switching power supplies according to the ripple parameters of the at least two switching power supplies;
and controlling the working time sequence of the at least two switching power supplies according to the control signal, wherein ripples generated by different switching power supplies in the at least two switching power supplies working according to the working time sequence are mutually offset.
In the foregoing solution, the generating control signals of the at least two switching power supplies according to the ripple parameters of the at least two switching power supplies includes:
generating control signals for controlling at least two switching power supplies according to the ripple amplitude in the ripple parameters;
the controlling the working time sequence of the at least two switching power supplies according to the control signal comprises:
and adjusting the working time sequence of the M switching power supplies according to the control signal so as to enable the ripples of the M switching power supplies to be mutually offset with the ripples of the other N switching power supplies, wherein the M and the N are both positive integers.
In the foregoing solution, the generating control signals of the at least two switching power supplies according to the ripple parameters of the at least two switching power supplies includes:
generating a first control signal according to the ripple frequencies of the at least two switching power supplies;
the controlling the working time sequence of the at least two switching power supplies according to the control signal comprises:
adjusting phases of working time sequences of the at least two switching power supplies according to the first control signal, wherein phase differences of ripples of a part of the switching power supplies and the other part of the switching power supplies in the at least two switching power supplies with the adjusted phases are within a first preset range.
In the foregoing solution, the generating control signals of the at least two switching power supplies according to the ripple parameters of the at least two switching power supplies includes:
generating a second control signal according to the ripple frequency of the at least two switching power supplies;
the controlling the working time sequence of the at least two switching power supplies according to the control signal comprises:
and adjusting the cycles of the working time sequences of the at least two switching power supplies according to the second control signal, wherein the cycle difference of ripple waves of the at least two switching power supplies with the adjusted cycles is within a second preset range, and the phase difference is within a third preset range.
In the foregoing solution, the ripple parameter includes: the amplitude of the ripple wave;
the generating control signals of the at least two switching power supplies according to the ripple parameters of the at least two switching power supplies includes:
generating a third control signal according to the ripple amplitudes of the at least two switching power supplies;
the method further comprises the following steps:
and adjusting an inductance value on a power supply circuit of at least one switching power supply based on the third control signal so as to adjust the ripple amplitude of at least one switching power supply.
According to a second aspect of the embodiments of the present disclosure, there is provided a power supply apparatus including: the device comprises a generation module and a control module; wherein the content of the first and second substances,
the generating module is used for generating control signals of the at least two switching power supplies according to ripple parameters of the at least two switching power supplies;
the control module is configured to control a working timing sequence of the at least two switching power supplies according to the control signal, where ripples generated by different switching power supplies of the at least two switching power supplies working according to the working timing sequence are mutually cancelled.
In the above scheme, the generating module is configured to generate a control signal for controlling at least two switching power supplies according to a ripple amplitude in the ripple parameter;
the control module is used for adjusting the work time sequence of the M switching power supplies according to the control signal so as to enable the ripples of the M switching power supplies to be mutually offset with the ripples of the other N switching power supplies, wherein the M and the N are positive integers.
In the foregoing solution, the generating module includes: the first generating unit is used for generating a first control signal according to the ripple frequency of the at least two switching power supplies;
the control module includes: and the first control unit is used for adjusting the phases of the working time sequences of the at least two switching power supplies according to the first control signal, wherein the phase difference between ripples of part of the switching power supplies and the other part of the switching power supplies in the at least two switching power supplies with the adjusted phases is within a first preset range.
In the foregoing solution, the generating module includes: the second generating unit is used for generating a second control signal according to the ripple frequency of the at least two switching power supplies;
the control module includes: and the second control unit is used for adjusting the periods of the working time sequences of the at least two switching power supplies according to the second control signal, wherein the period difference of the ripple waves of the at least two switching power supplies with the adjusted periods is within a second preset range, and the phase difference is within a third preset range.
In the foregoing solution, the ripple parameter includes: the amplitude of the ripple wave;
the generation module further comprises: a third generating unit, configured to generate a third control signal according to the ripple amplitudes of the at least two switching power supplies;
the device further comprises: an adjustment module;
the adjusting module is further configured to adjust an inductance value of at least one power supply circuit of the switching power supply based on the third control signal, so as to adjust a ripple amplitude of the at least one switching power supply.
According to a third aspect of the embodiments of the present disclosure, there is provided an electronic apparatus including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to: when the power supply method is used for running computer services, the power supply method of any embodiment of the disclosure is realized.
According to a fourth aspect of an example of the present disclosure, there is provided a non-transitory computer-readable storage medium storing an executable program, wherein the executable program, when executed by a processor, implements the power supply method according to any one of the embodiments of the present disclosure.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
generating control signals of the at least two switching power supplies according to ripple parameters of the at least two switching power supplies; according to the control signal, the working time sequences of the at least two switching power supplies are controlled, and the working time sequences of part or all of the switching power supplies of the plurality of switching power supplies can be controlled based on the simultaneous working of the plurality of switching power supplies, so that ripples generated by different switching power supplies in the at least two switching power supplies working according to the working time sequences are mutually offset.
So, this disclosure can be under the prerequisite that does not influence supply circuit consumption demand, only control switching power supply's working sequence and make in two at least switching power supply different switching power supply's ripple can offset each other for whole supply circuit's ripple reduces, thereby makes supply circuit's voltage is more stable, improves supply circuit's security. And, compared with the mode of enlarging the output capacitor and the like in the related technology, the method is easier to realize.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a flow chart illustrating a method of powering a power supply in accordance with an exemplary embodiment.
Fig. 2 is a circuit diagram illustrating a switching power supply according to an exemplary embodiment.
Fig. 3 is a circuit diagram illustrating another switching power supply according to an example embodiment.
Fig. 4 is a waveform diagram illustrating a ripple current according to an exemplary embodiment.
Fig. 5 is a waveform diagram illustrating a superposition of ripple currents according to an exemplary embodiment.
FIG. 6 is a flow chart illustrating another method of powering a power supply in accordance with an exemplary embodiment.
Fig. 7 is a block diagram illustrating a power supply apparatus according to an exemplary embodiment.
FIG. 8 is a block diagram illustrating an electronic device in accordance with an example embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Fig. 1 is a flowchart illustrating a power supply method according to an exemplary embodiment, where the power supply method is applied to an electronic device including at least two switching power supplies, as shown in fig. 1, and includes the following steps.
Step S11, generating control signals of the at least two switching power supplies according to the ripple parameters of the at least two switching power supplies;
step S12, controlling the working timing sequence of the at least two switching power supplies according to the control signal, wherein ripples generated by different switching power supplies of the at least two switching power supplies working according to the working timing sequence are mutually cancelled.
In the embodiment of the present disclosure, the electronic device may be any terminal device including a switching power supply. For example, the electronic device may be: mobile communication devices, computers, servers, laptops, etc.
In the disclosed embodiment, the ripple is a signal waveform that varies in a periodic manner. The ripple in the present disclosure may be a ripple characterized by a ripple current, or a ripple characterized by a ripple voltage.
It will be appreciated that the periodic variation of the ripple of the switching power supply is related to the timing of operation of the switching power supply. The operating timing of the switching power supply is periodically operated, the ripple is also periodically changed, and the periodicity of the ripple is related to the periodicity of the operating timing of the switching power supply.
Here, the switching power supply is a power supply of a circuit which uses a semiconductor power device as a switch, changes one power supply form state to another power supply form, and can automatically control a stable output. Wherein the circuit of the switching power supply includes but is not limited to at least one of the following:
buck chopper (Buck) circuits, Boost chopper (Boost) circuits, Buck or Boost chopper (Buck-Boost) circuits, Boost or Buck chopper (Cuk) circuits.
Illustratively, fig. 2 is a circuit diagram of a switching power supply according to an exemplary embodiment, as shown in fig. 2, showing a Buck circuit; determining a ripple current (Δ i) of the Buck circuit L1 ) The calculation formula of (a) is as follows:
In one embodiment, the ripple current (Δ i) L1 ) The calculation formula of (2) is as follows:
here, it can be understood that V is small because the pressure drop in the M1 and the M2 is small SW1 Small and generally negligible.
For example, fig. 3 is a circuit diagram illustrating another switching power supply according to an exemplary embodiment, and as shown in fig. 3, a Boost circuit is shown; determining a ripple current (Δ i) of the Boost circuit L2 ) The calculation formula of (c) is as follows:
At one endIn an embodiment, the ripple current (Δ i) L2 ) The calculation formula of (2) is as follows:
here, it can be understood that V is small because the pressure drop in M3 and D is small SW2 Small and generally negligible.
Here, the M1, the M2, and the M3 may be Metal-Oxide-Semiconductor Field-Effect transistors (MOSFETs), Insulated Gate Bipolar Transistors (IGBTs), or the like.
In the embodiment of the present disclosure, the electronic device includes at least two switching power supplies; the at least two switching power supplies may be connected in parallel or in series or in other realizable manner in the electronic device, without limitation.
Here, the ripple parameter includes, but is not limited to, at least one of: ripple amplitude, ripple frequency, ripple amplitude. Wherein the ripple amplitude may include a peak value of the ripple and/or a valley value of the ripple.
Here, the parameters characterizing the operation timing may include: the timing of the rising edge of the timing signal, the timing of the falling edge of the timing signal, the phase of the timing signal and/or the period of the timing signal, and so forth. Wherein the phase comprises an initial phase.
For example, in one embodiment, the period of one cycle of the timing sequence in the working timing sequence is a period. The waveform corresponding to one circle of the working timing sequence cycle comprises a rising edge and a falling edge; if the phase of one cycle includes 360 °, the phase of the rising edge in the first period may be [0, 90 °) and [270 °, 360 °; the phase of the falling edge in the first cycle may be [90 °, 270 °); the initial phase may be 0.
In the disclosed embodiment, the control operation timing includes, but is not limited to, at least one of the following: controlling the time of the rising edge, controlling the time of the falling edge, controlling the movement of the phase and controlling the period of the working sequence. Here, it is understood that controlling the timing of the rising edge and/or controlling the timing of the falling edge is actually the movement of the control phase.
In some embodiments, one implementation manner of controlling the operation timing of the at least two switching power supplies may be: the electronic equipment comprises a control circuit, wherein the control circuit is connected with the switching power supply; the control circuit may control an operation timing of the at least two switching power supplies based on the control signal. Here, the control signal may be a control signal of different levels. Wherein the control circuit can be a control circuit with signal processing capability; alternatively, the control circuit may be a circuit including a control chip or a controller. The control chip can be: a processing chip of a central processing unit, a microcontroller chip, a data signal processing chip or a programmable array processing chip, etc. Thus, the automatic control of the working sequence can be realized.
It is understood that, in the related art, in the electronic apparatus, the ripple current generated by the one switching power supply may be as shown in fig. 4, where Δ i L1 Is the ripple current generated by a switching power supply. If a plurality of switching power supplies operate simultaneously and ripple currents generated by the switching power supplies are randomly superposed, it is very likely that the peak value and the peak value of at least part of the ripple currents generated by the switching power supplies are superposed, or the valley value and the valley value are superposed (that is, ripples of two switches with energy sources are in phase), and the like, at least one time of Δ i is generated L1 The above ripples make the power supply circuit of the electronic device very unstable.
In the embodiment of the disclosure, the control signals of the at least two switching power supplies are generated according to ripple parameters of the at least two switching power supplies; according to the control signal, the working time sequences of the at least two switching power supplies are controlled, and the working time sequences of part or all of the switching power supplies of the plurality of switching power supplies can be controlled based on the simultaneous working of the plurality of switching power supplies, so that ripples generated by different switching power supplies in the at least two switching power supplies working according to the working time sequences are mutually offset.
The ripple also has crest and trough, and different ripples offset each other mainly be with the crest of part ripple and the trough stack of the ripple of other parts, so, crest and trough stack can make the amplitude that contains the holistic ripple of electronic equipment of two at least power reduce to restrain electronic equipment's whole ripple phenomenon.
The mutual cancellation of different ripples here includes: partial cancellation and total cancellation between different ripples. If the ripples generated by different switching power supplies are completely cancelled, the electronic device as a whole has no ripple accompanying the power supply signal output by the switching power supply.
For example, as shown in fig. 5, ripple currents generated by two switching power supplies are shown, and the ripple current Δ i of the power supply ripple of the two switches is caused by controlling the operation timing of one switching power supply to be delayed by Δ t from the rising edge of the operation timing of the other switching power supply (i.e., the on-time of the switch) so that the ripple current Δ i of the power supply ripple of the two switches L1 And Δ i L2 The wave crests are not superposed with the wave crests, and the wave troughs are not superposed with the wave troughs, so that the ripples generated by different switching power supplies in the power supplies of the two switches can be mutually offset, and the ripples of the whole power supply circuit are reduced.
So, this disclosure can only control switching power supply's working sequence and make under the prerequisite that does not influence supply circuit consumption demand different in two at least switching power supply's ripple can offset each other for whole supply circuit's ripple reduces, thereby makes supply circuit's voltage is more stable, improves supply circuit's security. In addition, the working time sequence of the switching power supply can be controlled only, so that the mutual offset of ripples generated by different switching power supplies in the multiple switching power supplies can be realized, and the method is easier to realize compared with the method of increasing the output capacitor and the like in the related art.
In some embodiments, the step S11 includes: generating control signals for controlling at least two switching power supplies according to the ripple amplitude in the ripple parameters;
the step S12 includes: and adjusting the working time sequence of the M switching power supplies according to the control signal so as to enable the ripples of the M switching power supplies to be mutually offset with the ripples of the other N switching power supplies, wherein the M and the N are both positive integers.
In some embodiments, M can be any positive integer, such as 1. The N may be any positive integer, such as 1. Thus, the present embodiment can realize that the ripple of one switching power supply and the ripple of the power supply of the other switching power supply cancel each other out.
Illustratively, the at least two switching power supplies include: a first switching power supply and a second switching power supply; wherein the first switching power supply includes at least one of the switching power supplies, and the second switching power supply includes at least one of the switching power supplies;
wherein the ripple amplitude of the first switching power supply comprises: a first peak value and a first valley value; the ripple amplitude of the second switching power supply comprises: a second peak value and a second valley value; the first wave peak value is greater than or equal to one second wave peak value and less than two second wave peak values; the first valley value is greater than or equal to one second valley value and less than two second valley values;
the step S12 specifically includes: and adjusting the working time sequence of one first switching power supply and/or the working time sequence of one second switching power supply according to the control signal, so that the ripple of the one first switching power supply and the ripple of the one second switching power supply are mutually offset.
Here, the peak value is an absolute value of a peak; the valley value is the absolute value of the valley.
In this embodiment, any two switching power supplies with smaller amplitude differences (of course, any two switching power supplies with smaller amplitude differences may be selected) in the at least two switching power supplies may be controlled in working timing sequence, so that ripples of the two switching power supplies are mutually cancelled.
In other embodiments, M is 1 and N is a positive integer greater than or equal to 2. Thus, the ripple of one switching power supply and the ripples of the other switching power supplies can be mutually offset.
Illustratively, the at least two switches, the at least two switching power supplies, comprise: a third switching power supply and a fourth switching power supply; wherein the third switching power supply comprises at least one of the switching power supplies and the fourth switching power supply comprises at least one of the switching power supplies;
wherein the ripple amplitude of the third switching power supply comprises: a third peak and a third valley; the ripple amplitude of the fourth switching power supply includes: a fourth peak and a fourth valley; the third crest value is greater than or equal to the sum of the P fourth crest values; the third wave valley value is greater than or equal to P fourth wave valley values; p is an integer greater than or equal to 2;
the step S12 specifically includes: and adjusting the working time sequence of the P fourth switching power supplies according to the control signal, so that the ripple of the third switching power supply and the ripple of the P fourth switching power supplies are mutually offset.
In this embodiment, if the amplitude of one switching power supply in the at least two switching power supplies is greater than or equal to the sum of the amplitudes of the other switching power supplies, the operation timings of the other switching power supplies may be controlled, so that the ripples of the other switching power supplies and the ripple of the switching power supply can be cancelled.
In the embodiment of the disclosure, the ripple amplitude of at least two switching power supplies can be obtained, the magnitude of the ripple current (or voltage) amplitude of each switch can be determined, and the working time sequence of each switch power supply can be controlled; specifically, one-to-one (two switching power supplies with small amplitude difference) and one-to-many (the amplitude of one switching power supply is greater than or equal to the sum of the amplitudes of the other switching power supplies) control can be realized, so that ripples generated by each switching power supply in the one-to-one and one-to-many switching power supplies are mutually offset, ripples of the whole power supply circuit are effectively reduced, and the stability of the power supply circuit is improved.
In some embodiments, the step S11 includes:
step S111, generating a first control signal according to the ripple frequency of the at least two switching power supplies;
the step S12 includes:
step S121, adjusting phases of working timings of the at least two switching power supplies according to the first control signal, where phase differences of ripples of part of the switching power supplies and another part of the switching power supplies in the at least two switching power supplies with the adjusted phases are within a first preset range.
For example, the phase adjustment is performed so that the peak of the ripple generated by at least one of the partial switching power supplies is aligned with the trough of the ripple of another one of the partial switching power supplies on the time axis, thereby achieving the ripple cancellation.
In an embodiment, the ripple frequency is a frequency at which a switch of the switching power supply is turned on or off. For example, as shown in fig. 2, the frequency is the frequency at which the M1, M2 are turned on or off.
Here, the first control signal is used to adjust a phase of the operation timing. In an embodiment, the adjusting the phase of the working timing may be: and adjusting the initial phase of the working time sequence.
Here, the first preset range may be [0, 180 ° ].
In some embodiments, the first control signal is used to adjust the phase of the operating timing to be less than a first phase angle. Here, the first phase angle may be a phase at which one rising edge is located or a phase at which one falling edge is located; in this way, the phase difference based on the ripples of part of the switching power supply and another part of the switching power supply in the at least two switching power supplies after the phase adjustment is within a first preset range. In this way, the present embodiment may enable the ripple of the part of the switching power supply after the phase adjustment and the ripple of the other part of the switching power supply to at least partially cancel each other.
In other embodiments, the first control signal is configured to adjust the phase of the operating sequence to be equal to the first phase angle. Here, the first phase angle may be a phase at which one rising edge is located or a phase at which one falling edge is located; in this way, the phases of some of the at least two switching power supplies after the phase adjustment are opposite to the phases of other switching power supplies. Thus, the present embodiment can greatly reduce the ripple of the partially inverted switching power supply, for example, at least reduce the ripple with smaller amplitude in the inverted switching power supply.
In still other embodiments, the at least two switching power supplies comprise: a fifth switching power supply and a sixth switching power supply; the ripple parameter of the fifth switching power supply includes: a first frequency; the ripple parameter of the sixth switching power supply includes: a second frequency;
the step S11 includes:
if the first frequency is the same as the second frequency, generating a first control signal;
the step S12 includes:
adjusting the phase of the working time sequence of the fifth switching power supply and/or the working time sequence of the sixth switching power supply according to the first control signal; wherein the phases of the fifth switching power supply and the sixth switching power supply, which are adjusted, are reversed.
In this embodiment, if it is determined that the frequency of at least one of the at least two switching power supplies is the same as the frequency of the other switching power supply, the phases of the operating timings of the two switching power supplies may be adjusted, so that the phases of the two switching power supplies are opposite, and thus the ripples of the two switching power supplies may be cancelled each other as much as possible.
Of course, in other embodiments, the first frequency may be a first multiple of the second frequency; the first frequency multiplication is a positive integer equal to or greater than 2.
In the embodiment of the disclosure, a first control signal may be generated by obtaining ripple frequencies of at least two switching power supplies, and based on the first control signal, phases of working timings of the at least two switching power supplies are adjusted, so that phase differences between some switching power supplies and other switching power supplies in the at least two switching power supplies are within a predetermined range, and thus ripples of some switching power supplies and other switching power supplies are mutually offset, thereby greatly reducing ripples of the power supply circuit.
Further, if ripple frequencies of partial switching power supplies in the at least two switching power supplies are the same, after the working timing sequence of the partial switching power supplies is adjusted, phases of one or more switching power supplies in the partial switching power supplies and other one or more switching power supplies are reversed, and ripples in the partial switching power supplies can be greatly offset; thereby further reducing the ripple of the whole power supply circuit greatly.
In other embodiments, the step S11 includes:
step S112, generating a second control signal according to the ripple frequency of the at least two switching power supplies;
the step 12 includes:
step S122, adjusting the periods of the working time sequences of the at least two switching power supplies according to the second control signal, where the period difference of the ripple waves of the at least two switching power supplies, whose periods are adjusted, is within a second preset range and the phase difference is within a third preset range.
Here, the second control signal is used to adjust a period of the operation timing.
In some embodiments, the step S112 includes: if the ripple frequencies of part of the at least two switching power supplies are different, generating a second control signal; the second control signal is used for adjusting the period of the working sequence of the partial switching power supply.
Illustratively, the at least two switching power supplies include: a seventh switching power supply and an eighth switching power supply; the ripple parameter of the seventh switching power supply includes: a third frequency; the ripple parameter of the eighth switching power supply includes: a fourth frequency;
the step S112 includes: if the third frequency is different from the fourth frequency and the third frequency and the fourth frequency are within a preset threshold range, generating a second control signal;
the step S122 includes: and adjusting the period of the working timing sequence of the seventh switching power supply and/or the eighth switching power supply according to the second control signal, so that the periods of the seventh switching power supply and the eighth switching power supply are the same.
In the above example, the adjusting of the cycle of the operation timing of the seventh switching power supply and/or the eighth switching power supply may also cause phases of the seventh switching power supply and the eighth switching power supply to be inverted.
In the embodiment of the disclosure, when the ripple frequencies of the partial switching power supplies in the at least two switching power supplies are different and the difference between the ripple frequencies is within a predetermined range, the period of the working timing sequence of the switching power supplies may be adjusted, so that the periods of the partial switching power supplies are the same or within a predetermined range, thereby facilitating the mutual cancellation of the ripples generated by the switching power supplies based on the differences in the adjusted ripples of the at least two switching energy sources.
As shown in fig. 6, in some embodiments, the ripple parameters include: the amplitude of the ripple wave;
the step S11 includes:
step S113, generating a third control signal according to the ripple amplitudes of the at least two switching power supplies;
the method further comprises the following steps:
step S13, adjusting an inductance value of at least one power supply circuit of the switching power supply based on the third control signal, so as to adjust a ripple amplitude of the at least one switching power supply.
Here, the ripple amplitude includes: peak and valley values.
Here, the third control signal is used for adjusting an inductance value on the power supply circuit. In an embodiment, the third control signal is used to increase an inductance value on the power supply circuit.
It can be understood that the inductance value on the power supply circuit of the switching power supply is inversely proportional to the ripple amplitude of the switching power supply; therefore, in the embodiment of the present disclosure, by adjusting an inductance value on at least one power supply circuit of the switching power supply, specifically, increasing the inductance value on the power supply circuit, the purpose of reducing the ripple amplitude of the switching power supply is achieved, and thus the ripple on the power supply circuit can be reduced.
Fig. 7 is a block diagram illustrating a method and apparatus for supplying power according to an exemplary embodiment. Referring to fig. 7, the apparatus includes: a determination module generation module 21 and a control module 22; wherein, the first and the second end of the pipe are connected with each other,
the generating module 21 is configured to generate control signals of at least two switching power supplies according to ripple parameters of the at least two switching power supplies;
the control module 22 is configured to control a working timing sequence of the at least two switching power supplies according to the control signal, where ripples generated by different switching power supplies of the at least two switching power supplies working according to the working timing sequence are mutually cancelled.
In some embodiments, the generating module 21 is configured to generate a control signal for controlling at least two switching power supplies according to a ripple amplitude in the ripple parameter;
the control module 22 is configured to adjust the working timings of the M switching power supplies according to the control signal, so that the ripples of the M switching power supplies and the ripples of the N other switching power supplies cancel each other out, where M and N are both positive integers.
In some embodiments, the generating module 21 comprises: a first generating unit 211, configured to generate a first control signal according to ripple frequencies of the at least two switching power supplies;
the control module 22 includes: the first control unit 221 is configured to adjust phases of working timings of the at least two switching power supplies according to the first control signal, where phase differences between ripples of some of the switching power supplies and other ripples of some of the switching power supplies in the at least two switching power supplies with the adjusted phases are within a first preset range.
In some embodiments, the generating module 21 comprises: a second generating unit 212, configured to generate a second control signal according to the ripple frequencies of the at least two switching power supplies;
the control module 22 includes: the second control unit 222 is configured to adjust periods of the working timings of the at least two switching power supplies according to the second control signal, where a period difference of ripple waves of the at least two switching power supplies, whose periods are adjusted, is within a second preset range and a phase difference is within a third preset range.
In some embodiments, the ripple parameter comprises: the amplitude of the ripple wave;
the generating module 21 further includes: a third generating unit 213, configured to generate a third control signal according to the ripple amplitudes of the at least two switching power supplies;
the device further comprises: an adjustment module 23;
the adjusting module 23 is further configured to adjust an inductance value of at least one power supply circuit of the switching power supply based on the third control signal, so as to adjust a ripple amplitude of the at least one switching power supply.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
An embodiment of the present disclosure further provides an electronic device, including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to: when the power supply device is used for running computer services, the power supply method of any embodiment is realized.
The memory may include various types of storage media, which are non-transitory computer storage media capable of continuing to remember the information stored thereon after a communication device has been powered down.
The processor may be connected via a memory, such as a bus, for reading an executable program stored on the memory, e.g., at least one of the methods shown in fig. 1 and 6.
The embodiment of the present disclosure further provides a non-transitory computer-readable storage medium, which stores an executable program, where the executable program, when executed by a processor, implements the power supply method according to any of the foregoing embodiments. For example, at least one of the methods shown in fig. 1 and fig. 6 is implemented.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
Fig. 8 is a block diagram illustrating an apparatus 800 for power supply according to an example embodiment. For example, the apparatus 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.
Referring to fig. 8, the apparatus 800 may include one or more of the following components: a processing component 802, a memory 804, a power component 806, a multimedia component 808, an audio component 810, an input/output (I/O) interface 812, a sensor component 814, and a communication component 816.
The processing component 802 generally controls overall operation of the device 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.
The memory 804 is configured to store various types of data to support operation at the device 800. Examples of such data include instructions for any application or method operating on device 800, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
Power component 806 provides power for the various components of device 800. The power components 806 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the device 800.
The multimedia component 808 includes a screen that provides an output interface between the device 800 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. The front-facing camera and/or the rear-facing camera may receive external multimedia data when the device 800 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.
The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor assembly 814 includes one or more sensors for providing various aspects of state assessment for the device 800. For example, the sensor assembly 814 may detect the open/closed state of the device 800, the relative positioning of the components, such as a display and keypad of the apparatus 800, the sensor assembly 814 may also detect a change in position of the apparatus 800 or a component of the apparatus 800, the presence or absence of user contact with the apparatus 800, orientation or acceleration/deceleration of the apparatus 800, and a change in temperature of the apparatus 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object in the absence of any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 816 is configured to facilitate communications between the apparatus 800 and other devices in a wired or wireless manner. The device 800 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the apparatus 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 804 comprising instructions, executable by the processor 820 of the device 800 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (10)
1. A power supply method is applied to electronic equipment comprising at least two switching power supplies, and comprises the following steps:
generating control signals of the at least two switching power supplies according to ripple parameters of the at least two switching power supplies; wherein the control signal comprises: a second control signal;
controlling the working time sequence of the at least two switching power supplies according to the control signal, wherein ripples generated by different switching power supplies in the at least two switching power supplies working according to the working time sequence are mutually offset;
wherein, according to the control signal, control the working sequence of at least two switching power supplies, include: and adjusting the periods of the working time sequences of the at least two switching power supplies according to the second control signal, wherein the period difference of the ripple waves of the at least two switching power supplies with the adjusted periods is within a second preset range, and the phase difference is within a third preset range.
2. The method of claim 1,
the generating control signals of the at least two switching power supplies according to the ripple parameters of the at least two switching power supplies includes:
generating control signals for controlling at least two switching power supplies according to the ripple amplitude in the ripple parameters;
the controlling the working time sequence of the at least two switching power supplies according to the control signal comprises:
and adjusting the working time sequence of the M switching power supplies according to the control signal so as to enable the ripples of the M switching power supplies to be mutually offset with the ripples of the other N switching power supplies, wherein the M and the N are both positive integers.
3. The method according to claim 1 or 2,
the generating control signals of the at least two switching power supplies according to the ripple parameters of the at least two switching power supplies includes:
generating a first control signal according to the ripple frequencies of the at least two switching power supplies;
the controlling the working time sequence of the at least two switching power supplies according to the control signal comprises:
and adjusting the phases of the working time sequences of the at least two switching power supplies according to the first control signal, wherein the phase difference of ripples of part of the switching power supplies and the other part of the switching power supplies in the at least two switching power supplies with the adjusted phases is within a first preset range.
4. The method according to claim 1 or 2, wherein the ripple parameter comprises: the amplitude of the ripple wave;
the generating control signals of the at least two switching power supplies according to the ripple parameters of the at least two switching power supplies includes:
generating a third control signal according to the ripple amplitudes of the at least two switching power supplies;
the method further comprises the following steps:
and adjusting an inductance value on a power supply circuit of at least one switching power supply based on the third control signal so as to adjust the ripple amplitude of at least one switching power supply.
5. A power supply unit, comprising: the device comprises a generation module and a control module; wherein the content of the first and second substances,
the generating module is used for generating control signals of the at least two switching power supplies according to ripple parameters of the at least two switching power supplies; wherein the control signal comprises: a second control signal;
the control module is configured to control a working time sequence of the at least two switching power supplies according to the control signal, where ripples generated by different switching power supplies of the at least two switching power supplies working according to the working time sequence are mutually cancelled;
the control module includes: and the second control unit is used for adjusting the periods of the working time sequences of the at least two switching power supplies according to the second control signal, wherein the period difference of the ripple waves of the at least two switching power supplies with the adjusted periods is within a second preset range, and the phase difference is within a third preset range.
6. The apparatus of claim 5,
the generating module is used for generating control signals for controlling at least two switching power supplies according to the ripple amplitude in the ripple parameter;
the control module is used for adjusting the work time sequence of the M switching power supplies according to the control signal so that the ripples of the M switching power supplies and the ripples of the other N switching power supplies are mutually offset, wherein M and N are positive integers.
7. The apparatus of claim 5 or 6, wherein the generating module comprises: the first generating unit is used for generating a first control signal according to the ripple frequency of the at least two switching power supplies;
the control module includes: and the first control unit is used for adjusting the phases of the working time sequences of the at least two switching power supplies according to the first control signal, wherein the phase difference between ripples of part of the switching power supplies and the other part of the switching power supplies in the at least two switching power supplies with the adjusted phases is within a first preset range.
8. The apparatus of claim 5 or 6, wherein the ripple parameter comprises: the amplitude of the ripple wave;
the generation module further comprises: a third generating unit, configured to generate a third control signal according to the ripple amplitudes of the at least two switching power supplies;
the device further comprises: an adjustment module;
the adjusting module is further configured to adjust an inductance value of at least one power supply circuit of the switching power supply based on the third control signal, so as to adjust a ripple amplitude of the at least one switching power supply.
9. An electronic device, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to: when the power supply device is used for running computer services, the power supply method of any one of claims 1 to 4 is realized.
10. A non-transitory computer readable storage medium storing an executable program, wherein the executable program when executed by a processor implements the power supply method of any of claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911010710.1A CN112701891B (en) | 2019-10-23 | 2019-10-23 | Power supply method and device, electronic equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911010710.1A CN112701891B (en) | 2019-10-23 | 2019-10-23 | Power supply method and device, electronic equipment and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112701891A CN112701891A (en) | 2021-04-23 |
| CN112701891B true CN112701891B (en) | 2022-09-16 |
Family
ID=75504945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911010710.1A Active CN112701891B (en) | 2019-10-23 | 2019-10-23 | Power supply method and device, electronic equipment and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112701891B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201526513A (en) * | 2013-12-31 | 2015-07-01 | Delta Electronics Inc | Power supply apparatus, power supply system with the power supply apparatus, and method of controlling the same |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203660883U (en) * | 2013-11-18 | 2014-06-18 | 东南大学 | Electrical energy conversion device |
| CN104485816B (en) * | 2014-12-15 | 2017-05-24 | 矽力杰半导体技术(杭州)有限公司 | Interleaved switching power supply and control method thereof |
| CN106257812B (en) * | 2016-08-17 | 2018-05-22 | 浙江大学 | A kind of power management chip based on the COT control Buck circuits of two-phase containing flow equalizing function |
| KR102036753B1 (en) * | 2016-11-16 | 2019-10-28 | 부경대학교 산학협력단 | Ac-dc converting apparatus for reducing a current ripple |
| CN106787738A (en) * | 2017-03-14 | 2017-05-31 | 华中科技大学 | A kind of multiphase interleaving DC converter |
| CN108039154A (en) * | 2017-12-07 | 2018-05-15 | 深圳市华星光电技术有限公司 | Time schedule controller and its core power circuit, liquid crystal display device |
| CN113300602B (en) * | 2021-07-12 | 2022-01-11 | 华北电力大学 | Novel staggered parallel BUCK converter and ripple wave eliminating method thereof |
-
2019
- 2019-10-23 CN CN201911010710.1A patent/CN112701891B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201526513A (en) * | 2013-12-31 | 2015-07-01 | Delta Electronics Inc | Power supply apparatus, power supply system with the power supply apparatus, and method of controlling the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112701891A (en) | 2021-04-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9543829B2 (en) | Switching regulator and comparator-based zero current detection method used by the switching regulator | |
| JP6239154B2 (en) | Charge control method and apparatus for terminal device, program, and recording medium | |
| KR102207502B1 (en) | Wireless charging receiving device, charging system and terminal | |
| CN107482710B (en) | Wireless charging method and terminal | |
| KR20160086751A (en) | Method and device for charge management | |
| JP2020530748A (en) | Charging circuit, terminal, and charging method | |
| CN112114674A (en) | Vibration intensity control method and device, electronic equipment and storage medium | |
| JP2021502040A5 (en) | ||
| US11743355B2 (en) | Prompting method and device | |
| KR102487354B1 (en) | Charging method and device, terminal and storage medium | |
| CN107940689B (en) | Fan rotating speed control method and device, fan and storage medium | |
| CN107734613B (en) | Power management method and device | |
| CN112701891B (en) | Power supply method and device, electronic equipment and storage medium | |
| US11831190B2 (en) | Electronic apparatus and charging method thereof, and storage medium | |
| CN113708704B (en) | Motor shock sensation control method and device, electronic equipment and storage medium | |
| CN111509789B (en) | Charging method and device | |
| CN109003580B (en) | Current adjusting device and method, display device and host | |
| CN111509320A (en) | Charging method and device | |
| CN219678305U (en) | Power supply circuit and electronic equipment | |
| CN111371156B (en) | Charging circuit, charging control method and device, electronic device, and storage medium | |
| CN219304724U (en) | Motor driving circuit and electronic equipment | |
| CN114069771B (en) | Charging method, charging device, and storage medium | |
| CN112291680B (en) | Control method and device of audio processing circuit, electronic equipment and readable storage medium | |
| CN107732992B (en) | Terminal equipment power supply management method and device | |
| CN116741111A (en) | Voltage control method and device for display panel, electronic equipment and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |