CN109194112A - Power circuit, power circuit method of supplying power to and intelligent door lock system - Google Patents
Power circuit, power circuit method of supplying power to and intelligent door lock system Download PDFInfo
- Publication number
- CN109194112A CN109194112A CN201811336389.1A CN201811336389A CN109194112A CN 109194112 A CN109194112 A CN 109194112A CN 201811336389 A CN201811336389 A CN 201811336389A CN 109194112 A CN109194112 A CN 109194112A
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- circuit
- voltage conversion
- power
- conversion circuit
- load circuit
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- 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
- H02M1/36—Means for starting or stopping converters
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The application provides a kind of power circuit, power circuit method of supplying power to and intelligent door lock system, is related to intelligent door lock power supply technique field, intelligent door lock includes load circuit, and power circuit includes the power supply, voltage conversion circuit and processor being sequentially connected electrically；Voltage conversion circuit includes first voltage conversion circuit and second voltage conversion circuit in parallel, and first voltage conversion circuit includes linear voltage regulator LDO, and second voltage conversion circuit includes transformer DC-DC；Processor is electrically connected with load circuit, for obtaining the state of load circuit, controls first voltage conversion circuit or second voltage conversion circuit as load circuit power supply, the state of load circuit includes working condition or standby mode.According to the power circuit method of supplying power to, the use of the power circuit is intelligent door lock power supply, the transformation efficiency of intelligent door lock power supply can be effectively improved, increase the cruise duration of battery, energy saving.
Description
Technical field
This application involves intelligent door lock power supply technique fields, power in particular to a kind of power circuit, power circuit
Method and intelligent door lock system.
Background technique
Intelligent door lock is by integrated circuit, electronic technology, biological identification technology, sensing technology, the Machine Design of lock body, meter
A variety of high-tech technologies such as calculation machine and network are warm to high-tech product together.It is special due to intelligent door lock present position
Property, the energy that all intelligent door locks need all is battery power supply, to guarantee that all electronic devices work normally.Therefore, electric
The cruising ability in pond is the very important index of intelligent door lock, how to guarantee that the long-time continuation of the journey of battery is that intelligent door lock designed
Very important part in journey, can not only save the use cost of user, moreover it is possible to and it is greatly energy saving, tribute is made for environmental protection
It offers.
The power supply of intelligent door lock at present is all to carry out handle using LDO (Low Dropout Regulator, linear voltage regulator)
Cell voltage is adjusted to the operating voltage that load circuit can work normally and uses for load circuit.For example, common battery and electricity
Source design scheme is that dry cell is connected, in the relevant work that the output voltage of dry cell is adjusted to load circuit by LDO
Voltage.
But done above by LDO in the technical solution of power supply adjustment, since the characteristics of LDO itself is only to do voltage tune
Whole, power is not converted, and output end voltage is lower than input terminal, and output end needs how many electric current, and input terminal must provide how many electricity
Stream.Therefore, power consumed by input terminal is far longer than the power that output end is used up, and remaining power dissipation is on LDO
Face converts thermal energy release for extra electric energy by LDO, so that doing the electricity of the intelligent door lock of power supply adjustment by LDO
Source, efficiency is extremely low in use, wastes a big chunk power supply, also affects the cruise duration of battery.
Summary of the invention
The purpose of the application is, in view of the deficiency of the prior art, provides a kind of power circuit, power circuit supplies
Method for electrically and intelligent door lock system are intelligent door lock power supply using the power circuit according to the power circuit method of supplying power to, can
The transformation efficiency for effectively improving intelligent door lock power supply increases the cruise duration of battery, energy saving.
To achieve the above object, technical solution used by the embodiment of the present application is as follows:
In a first aspect, the embodiment of the present application provides a kind of power circuit, it is applied to intelligent door lock, intelligent door lock includes load
Circuit, power circuit include the power supply, voltage conversion circuit and processor being sequentially connected electrically；
Voltage conversion circuit includes first voltage conversion circuit and second voltage conversion circuit in parallel, first voltage conversion
Circuit includes linear voltage regulator LDO, and second voltage conversion circuit includes transformer DC-DC (DC-DC converter, DC-DC change
Depressor)；
Processor is electrically connected with load circuit, for obtaining the state of load circuit, control first voltage conversion circuit or
Second voltage conversion circuit is load circuit power supply, and the state of load circuit includes working condition or standby mode.
In one embodiment, processor is electrically connected with DC-DC, and the state for obtaining load circuit controls DC-DC
Connection or disconnection, LDO is in connected state, and the output voltage of DC-DC is greater than the output voltage of LDO.
Optionally, it is in series with diode respectively in first voltage conversion circuit and second voltage conversion circuit.
Optionally, it in first voltage conversion circuit and second voltage conversion circuit, is respectively equipped with and is electrically connected with LDO and DC-DC
The precision resistance connect.
In one embodiment, the output voltage of DC-DC is 3.4 volts, and the output voltage of LDO is 3.3 volts.
Second aspect, the embodiment of the present application provide a kind of power circuit method of supplying power to, are applied to intelligent door lock, intelligent door lock
Including load circuit, which comprises
The state of load circuit is obtained, the state of load circuit includes: working condition or standby mode；
According to the state of acquired load circuit, controls first voltage conversion circuit or second voltage parallel with one another and turn
Circuit is changed as load circuit power supply, wherein first voltage conversion circuit includes linear voltage regulator LDO, second voltage conversion circuit
Including transformer DC-DC.
As described above, according to the state of acquired load circuit, control first voltage conversion circuit parallel with one another or
Second voltage conversion circuit is the step of load circuit is powered, comprising:
When the state of acquired load circuit is in running order, it is described negative for controlling the second voltage conversion circuit
Carry circuit power supply；
When the state of acquired load circuit is in standby, it is described negative for controlling the first voltage conversion circuit
Carry circuit power supply.
As described above, the control second voltage conversion circuit is the step of load circuit is powered, comprising:
High level signal is sent to the DC-DC, the DC-DC connection is controlled, makes the second voltage conversion circuit
The load circuit power supply.
As described above, the control first voltage conversion circuit is the step of load circuit is powered, comprising:
Low level signal is sent to the DC-DC, the DC-DC is controlled and disconnects, make the first voltage conversion circuit
The load circuit power supply.
The third aspect, the embodiment of the present application also provide a kind of intelligent door lock system, comprising: load circuit and such as first aspect
The power circuit, the output end of the power circuit are electrically connected with the input terminal of the load circuit.
The beneficial effect of the application is:
In a first aspect, processor can get the shape of load circuit in the power circuit provided by the embodiments of the present application
State, and first voltage conversion circuit or second voltage conversion circuit are controlled as load circuit power supply according to the state of load circuit.
It can include that the first voltage conversion circuit of LDO is electric for load by processor control when load circuit is in standby
Road power supply makes have lower quiescent current in power circuit, improves the cruising ability of power supply；And work is in load circuit
When state, the second voltage conversion circuit that by processor control can include DC-DC is load circuit power supply, so that electric
Source has high transfer efficiency, reduces unnecessary loss, further promotes the cruising ability of battery.
Second aspect, power circuit method of supplying power to provided by the embodiment of the present application, passes through power supply described in first aspect
Circuit is realized, therefore has whole beneficial effects described in first aspect, and details are not described herein.
The third aspect, intelligent door lock provided by the embodiment of the present application, including power circuit as described in relation to the first aspect, because
This is equally repeated no more herein with whole beneficial effects described in first aspect.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram of power circuit provided by the embodiments of the present application；
Fig. 2 is a kind of structural schematic diagram of embodiment of power circuit provided by the embodiments of the present application；
Fig. 3 is the structural schematic diagram of power circuit another embodiment provided by the embodiments of the present application；
Fig. 4 is the flow diagram of power circuit method of supplying power to provided by the embodiments of the present application；
Fig. 5 is the connection relationship diagram of intelligent door lock system provided by the embodiments of the present application.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, instead of all the embodiments.The application being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiments herein provided in the accompanying drawings is not intended to limit below claimed
Scope of the present application, but be merely representative of the selected embodiment of the application.Based on the embodiment in the application, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model of the application protection
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.In addition, term " the
One ", " second ", " third " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
The power supply of intelligent door lock at present is all the work for cell voltage being adjusted to using LDO intelligent door lock load circuit
Make voltage as load circuit power supply.
But since the characteristics of LDO itself is only to do voltage adjustment, power is not converted, and output end voltage compares input terminal
Low, output end needs how many electric current, and input terminal must provide how many electric current.For example, the output voltage of power output end is U1, defeated
Electric current is I out, then the input voltage that load circuit input terminal is output to after LDO is adjusted is U2, and U1It is far longer than U2, defeated
Entering electric current then is also I.At this point, the output power of power supply is U1I, and LDO is U in the input power of load circuit input terminal2I, can
To learn, the output power U of power supply1It is U that I, which is far longer than LDO in the input power of load circuit input terminal,2I, namely electricity institute are defeated
Power out only has U2This part of I, which is negative, to be carried circuit and provides electric energy, and remaining part is wasted in above LDO, is passed through
LDO converts thermal energy for extra electric energy and discharges.
From the foregoing, it will be observed that being adjusted in the scheme that supply voltage is the power supply of intelligent door lock load circuit by LDO at present, battery exists
Efficiency conversion is very low in use process, and a big chunk electric energy is by hot releasable, to seriously affect battery
Cruise duration.
Based on this, as shown in Figure 1, the embodiment of the present application provides a kind of power circuit, it is applied to intelligent door lock, intelligent door lock
Including load circuit, power circuit includes the power supply 110, voltage conversion circuit 120 and processor 130 being sequentially connected electrically；Voltage
Conversion circuit 120 includes first voltage conversion circuit 121 and second voltage conversion circuit 122 in parallel, first voltage conversion electricity
Road 121 includes linear voltage regulator LDO, and second voltage conversion circuit 122 includes transformer DC-DC；Processor 130 and load circuit
Electrical connection controls first voltage conversion circuit 121 or second voltage conversion circuit 122 is for obtaining the state of load circuit
Load circuit power supply, the state of load circuit includes working condition or standby mode.
Specifically, load circuit refers to the core circuit in intelligent door lock for realizing Intelligent door lock switch, and power supply 110 can
Think the dry cell batteries of the series connection of more piece dry cell or multiple parallel connections.The voltage that power supply 110 exports passes through 120 turns of voltage conversion circuit
After being changed to the operating voltage of suitable load circuit, it is input to load circuit and powers for it.Processor 130 is electrically connected with load circuit
It connects, the state of load circuit can be got, as load circuit is in running order or standby mode, and according to the shape of load circuit
State controls first voltage conversion circuit 121 or second voltage conversion circuit 122 as load circuit power supply.
Wherein, due to the LDO in first voltage conversion circuit 121 have very low quiescent current, such as less than 5 microamperes, and
The cruising ability of power supply 110 when lower quiescent current helps to improve load circuit in the standby state, therefore, when load electricity
When road is in the standby state, processor 130 can control first voltage conversion circuit 121 for load circuit power supply, so that load
Circuit in the standby state when, there is very low quiescent current, to improve the cruising ability of power supply 110 in power circuit.
In addition, since the DC-DC in second voltage conversion circuit 122 when realizing voltage conversion there is very high energy to turn
Efficiency (sustainable to reach 90% or more) is changed, therefore, when under load circuit is in running order, processor 130 controllable the
Two voltage conversion circuits 122 are load circuit power supply so that load circuit in the operating condition when, power supply 110 is to the defeated of DC-DC
Enter power and DC-DC to having higher conversion ratio between the output power of load circuit, to guarantee power supply 110 in load electricity
The transfer efficiency when working condition of road reduces unnecessary loss, improves the cruising ability of battery.
In conclusion processor 130 can get load circuit in the power circuit provided by the embodiments of the present application
State, and first voltage conversion circuit 121 or second voltage conversion circuit 122 are controlled as load electricity according to the state of load circuit
Road power supply.It can include the first voltage conversion electricity of LDO by the control of processor 130 when load circuit is in standby
Road 121 is load circuit power supply, makes have lower quiescent current in power circuit, improves the cruising ability of power supply 110；And
When load circuit is in running order, can be controlled by processor 130 include that the second voltage conversion circuit 122 of DC-DC is
Load circuit power supply reduces unnecessary loss, further mentions so that power supply 110 has high transfer efficiency
Rise the cruising ability of battery.
In one embodiment, control is respectively equipped in first voltage conversion circuit 121 and second voltage conversion circuit 122
The switch of connecting and disconnecting of the circuit processed, processor 130 can be by controlling first voltage conversion circuit 121 and second voltage conversion circuit respectively
122 switch, to realize control first voltage conversion circuit 121 or second voltage conversion circuit 122 for load circuit power supply.
As shown in Fig. 2, in another embodiment, processor 130 is electrically connected with DC-DC, for obtaining load circuit
State control DC-DC connection or disconnection, LDO be in connected state, output voltage of the output voltage greater than LDO of DC-DC.
Specifically, processor 130 is electrically connected with DC-DC, is in standby when processor 130 gets load circuit
When, processor 130 can send low level signal to DC-DC, and control DC-DC is disconnected, so that power supply 110 is only by including LDO
First voltage conversion circuit 121 be load circuit power supply, thus make in power circuit have very low quiescent current.Work as processing
Device 130 get load circuit it is in running order when, processor 130 can to DC-DC send high level signal, control DC-DC
Connection, at this point, since LDO is also at connected state, so first voltage conversion circuit 121 and second voltage conversion circuit 122
It is connected to power supply 110 and load circuit, but again since the output voltage of DC-DC is greater than the output voltage of LDO, power supply
110 by including DC-DC, and the higher second voltage conversion circuit 122 of output voltage is load circuit power supply, makes power supply
110 to DC-DC input power and DC-DC between the output power of load circuit have higher conversion ratio, to guarantee
Transfer efficiency of the power supply 110 in load circuit standby mode, reduces unnecessary loss, improves the cruising ability of battery.
Therefore, in the present embodiment, since it is only necessary to the connections or disconnection by control DC-DC for processor 130, i.e.,
Control first voltage conversion circuit 121 or second voltage conversion circuit 122 can be achieved as load circuit power supply.With processor 130
Control first voltage conversion circuit 121 is compared with the mode of the switch of second voltage conversion circuit 122 respectively, and present embodiment connects
It is simpler to connect mode, and since the control route of processor 130 is less, so that control mode is relatively reliable.
It should be strongly noted that due to whether first voltage conversion circuit 121 or second voltage conversion circuit
122, output voltage all needs to meet the requirement of the operating voltage of load circuit, therefore, is previously mentioned in the present embodiment
Output voltage of the output voltage of DC-DC greater than LDO only refer to and be slightly larger than, for example, setting the output voltage of DC-DC as 3.4
Volt, and the output voltage of LDO is 3.3 volts, to guarantee to export the error allowed to the voltage of load circuit in its operating voltage
In range, it is ensured that the normal work of load circuit.
Optionally, it in first voltage conversion circuit 121 and second voltage conversion circuit 122, is respectively equipped with and LDO and DC-
The precision resistance of DC electrical connection.
Specifically, since the distribution parameter of the resistance error of precision resistance, thermal stability (temperature coefficient) and resistor (divides
Cloth capacitor and distributed inductance) etc. indices be provided with higher standard, therefore can accurately be adjusted by precision resistance LDO and
The output voltage of DC-DC, meets the requirements it.
As shown in figure 3, in yet another embodiment, first voltage conversion circuit 121 and second voltage conversion circuit 122
It is middle to be in series with diode D respectively.
Specifically, diode D is rectifier diode, by converting electricity in first voltage conversion circuit 121 and second voltage
Series rectifier diode is distinguished in road 122, can occur in actual use electric current reverse irrigation to avoid power circuit, and is influenced
For the normal power supply of load circuit.
To make the more clear and complete of the embodiment of the present application description scheme, the application will pass through a kind of following application example
Carry out technical solutions in the embodiments of the present application to be illustrated.
Application example:
This application example provides a kind of power circuit applied to intelligent door lock, comprising: power supply, processor and parallel connection
First voltage conversion circuit and second voltage conversion circuit.Wherein, power supply is (or two groups of the concatenated dry cell of 4 sections
Dry cell batteries in parallel, every group of dry cell batteries include the concatenated dry cell of 4 sections, to guarantee bigger electricity), output voltage is
6.4V (volt, volt).The load circuit of first voltage conversion circuit and second voltage conversion circuit and intelligent door lock in parallel
Electrical connection, for powering for load circuit.First voltage conversion circuit includes the LDO and rectifier diode being sequentially connected in series, at LDO
In connected state, and supply voltage, after LDO is converted, the voltage for being input to load circuit is 3.3V.Second voltage conversion circuit
Including the DC-DC and rectifier diode being sequentially connected in series, after DC-DC is converted, the voltage for being input to load circuit is supply voltage
3.4V.Processor is electrically connected with the load circuit of intelligent door lock and DC-DC respectively, and the state for obtaining load circuit is (standby
State or working condition), and according to the connection or disconnection of the state of intelligent door lock control DC-DC.
Specifically, when the power circuit provided using this application example is that intelligent door lock load circuit is powered, processor
The state of load circuit can be got, rectifier diode can avoid occurring electric current reverse irrigation phenomenon in power circuit.For example, working as someone
When opening or closing the switch of intelligent door lock using badge, fingerprint or other modes, load circuit is in running order；When flat
No one is in use, load circuit is then in running order.
When processor, which gets load circuit, to be in standby, processor sends low level signal, control to DC-DC
DC-DC is disconnected, so that power supply smart is load circuit power supply by first voltage conversion circuit.At this point, at due to load circuit
In standby mode, hardly power consumption, therefore the LDO in first voltage conversion circuit can guarantee in power circuit with very low
Quiescent current.
When processor get load circuit it is in running order when, processor to DC-DC send high level signal, control
DC-DC connection, at this point, the output voltage 3.4V due to DC-DC is greater than the output voltage of LDO, power supply can only pass through second
Voltage conversion circuit is load circuit power supply, reaches 90% or more since the transfer efficiency of DC-DC is sustainable, loads at this time
Power consumed by circuit can account for 90% or more of power supply institute output power, and energy loss has been reduced to a great extent, and guarantee
The duration performance of battery.
As shown in figure 4, the embodiment of the present application also provides a kind of power supply based on power circuit provided in previous embodiment
Circuit method of supplying power to is applied to intelligent door lock, and intelligent door lock includes load circuit, and described method includes following steps:
S210, the state for obtaining load circuit, the state of load circuit includes: working condition or standby mode.
S220, the first voltage conversion circuit or second being mutually in parallel according to the state of acquired load circuit, control
Voltage conversion circuit is load circuit power supply, and wherein first voltage conversion circuit includes linear voltage regulator LDO, second voltage conversion
Circuit includes transformer DC-DC.
As described above, according to the state of acquired load circuit, control the first voltage conversion circuit being mutually in parallel or
Second voltage conversion circuit is the step of load circuit is powered, comprising:
When the state of acquired load circuit is in running order, second voltage conversion circuit is controlled as load circuit confession
Electricity.
When the state of acquired load circuit is in standby, first voltage conversion circuit is controlled as load circuit confession
Electricity.
Specifically, above-mentioned power source supply method can by performed by power circuit described in aforementioned any embodiment, because
This has whole beneficial effects described in aforementioned any embodiment, and details are not described herein.
In one embodiment, control second voltage conversion circuit is the step of load circuit is powered, comprising:
High level signal is sent to DC-DC, control DC-DC connection makes second voltage conversion circuit load circuit power.
Controlling first voltage conversion circuit is the step of load circuit is powered, comprising:
Low level signal is sent to DC-DC, control DC-DC is disconnected, and first voltage conversion circuit load circuit is made to power.
Specifically, implement the part that method and step described in present embodiment can all be required as follows based on aforementioned satisfaction
Power circuit provided by mode is realized: (1) processor is electrically connected with DC-DC, for controlling the connection or disconnection of DC-DC；
(2) LDO is in connected state；(3) output voltage of DC-DC is greater than the output voltage of LDO.And present embodiment is provided
The beneficial effect that power circuit method of supplying power to has, the application meet the above-mentioned some embodiments all required aforementioned
Middle all explanations, details are not described herein.
It should be strongly noted that in other embodiments, be also possible to by sending high level signal to DC-DC,
DC-DC is controlled to disconnect；And low level signal, control DC-DC connection are sent to DC-DC.For by the way which kind of sends to DC-DC
Signal, to realize the connection or disconnection of control DC-DC, the application is not specially limited herein.
The embodiment of the present application also provides a kind of intelligent door lock system, comprising: in load circuit and such as aforementioned any embodiment
The power circuit, the output end of power circuit are electrically connected with the input terminal of load circuit.
Since intelligent door lock system provided by the embodiment includes the whole of power circuit described in aforementioned any embodiment
Technical characteristic, therefore can realize that whole beneficial effects that power circuit described in aforementioned any embodiment has, the application exist
This is repeated no more.
As shown in figure 5, in one embodiment, the processor in power circuit 320 is electrically connected with load circuit 310,
Obtain the state (working condition or standby mode) of load circuit 310.Load circuit 310 is the core circuit of intelligent door lock, can
Including sensor circuit, control circuit, warning circuit and driving motor etc..First voltage conversion circuit where LDO is located always
In connected state, and the output voltage of DC-DC is slightly larger than the output voltage of LDO, in processor and second voltage conversion circuit
DC-DC electrical connection, for controlling the disconnection or connection of DC-DC and sending low level signal or high level signal to DC-DC.
In another embodiment, power circuit and load circuit can share a processor namely power circuit is
Load circuit is powered, and directly can convert electricity with second voltage for realizing the core processor of intelligent door lock function in load circuit
DC-DC electrical connection in road, by sending high level signal or low level signal to DC-DC, realize according to itself state (to
Machine state or working condition) control DC-DC connection or disconnection.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
1. a kind of power circuit is applied to intelligent door lock, the intelligent door lock includes load circuit, which is characterized in that the electricity
Source circuit includes the power supply, voltage conversion circuit and processor being sequentially connected electrically；
The voltage conversion circuit includes first voltage conversion circuit and second voltage conversion circuit in parallel, the first voltage
Conversion circuit includes linear voltage regulator LDO, and the second voltage conversion circuit includes transformer DC-DC；
The processor is electrically connected with load circuit, for obtaining the state of the load circuit, is controlled the first voltage and is turned
Circuit or the second voltage conversion circuit are changed as load circuit power supply, the state of the load circuit includes working condition
Or standby mode.
2. power circuit according to claim 1, which is characterized in that the processor is electrically connected with the DC-DC, is used for
The state for obtaining the load circuit controls the connection or disconnection of the DC-DC, and the LDO is in connected state, the DC-DC
Output voltage be greater than the LDO output voltage.
3. power circuit according to claim 1 or 2, which is characterized in that the first voltage conversion circuit and described
It is in series with diode respectively in two voltage conversion circuits.
4. power circuit according to claim 2, which is characterized in that the first voltage conversion circuit and second electricity
In voltage conversion circuit, it is respectively equipped with the precision resistance being electrically connected with the LDO and the DC-DC.
5. power circuit according to claim 4, which is characterized in that the output voltage of the DC-DC is 3.4 volts, described
The output voltage of LDO is 3.3 volts.
6. a kind of power circuit method of supplying power to is applied to intelligent door lock, the intelligent door lock includes load circuit, and feature exists
In, which comprises
The state of load circuit is obtained, the state of the load circuit includes: working condition or standby mode；
According to the state of acquired load circuit, first voltage conversion circuit or second voltage conversion electricity parallel with one another are controlled
Road is load circuit power supply, wherein the first voltage conversion circuit includes linear voltage regulator LDO, the second voltage
Conversion circuit includes transformer DC-DC.
7. power circuit method of supplying power to according to claim 6, which is characterized in that the load circuit according to acquired in
State, control first voltage conversion circuit or second voltage conversion circuit parallel with one another be the load circuit power supply step
Suddenly, comprising:
When the state of acquired load circuit is in running order, controlling the second voltage conversion circuit is the load electricity
Road power supply；
When the state of acquired load circuit is in standby, controlling the first voltage conversion circuit is the load electricity
Road power supply.
8. power circuit method of supplying power to according to claim 7, which is characterized in that the control second voltage conversion
Circuit is the step of load circuit is powered, comprising:
High level signal is sent to the DC-DC, the DC-DC connection is controlled, keeps the second voltage conversion circuit described
Load circuit power supply.
9. power circuit method of supplying power to according to claim 8, which is characterized in that the control first voltage conversion
Circuit is the step of load circuit is powered, comprising:
Low level signal is sent to the DC-DC, the DC-DC is controlled and disconnects, keeps the first voltage conversion circuit described
Load circuit power supply.
10. a kind of intelligent door lock system characterized by comprising load circuit and electricity as described in any one in claim 1-5
Source circuit, the output end of the power circuit are electrically connected with the input terminal of the load circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811336389.1A CN109194112A (en) | 2018-11-09 | 2018-11-09 | Power circuit, power circuit method of supplying power to and intelligent door lock system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811336389.1A CN109194112A (en) | 2018-11-09 | 2018-11-09 | Power circuit, power circuit method of supplying power to and intelligent door lock system |
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| Publication Number | Publication Date |
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| CN109194112A true CN109194112A (en) | 2019-01-11 |
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ID=64938757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811336389.1A Pending CN109194112A (en) | 2018-11-09 | 2018-11-09 | Power circuit, power circuit method of supplying power to and intelligent door lock system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110969730A (en) * | 2019-11-05 | 2020-04-07 | 杭州亿强科技有限公司 | Low-power-consumption circuit system applied to intelligent door lock and control method thereof |
| CN111313689A (en) * | 2019-12-02 | 2020-06-19 | 重庆大学 | DC/DC converter system architecture with high light load efficiency |
| CN111555616A (en) * | 2020-05-22 | 2020-08-18 | 华大半导体有限公司 | Power management system and method |
| CN111619360A (en) * | 2020-07-28 | 2020-09-04 | 浙江大学 | Energy management control system and control method suitable for solar unmanned aerial vehicle |
| CN111756091A (en) * | 2020-06-30 | 2020-10-09 | 深圳市欧瑞博科技股份有限公司 | Power supply switching circuit and intelligent door lock |
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| CN113949261A (en) * | 2020-07-17 | 2022-01-18 | 成都秦川物联网科技股份有限公司 | Internet of things intelligent gas meter powered by double power supplies |
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| CN110969730A (en) * | 2019-11-05 | 2020-04-07 | 杭州亿强科技有限公司 | Low-power-consumption circuit system applied to intelligent door lock and control method thereof |
| CN111313689A (en) * | 2019-12-02 | 2020-06-19 | 重庆大学 | DC/DC converter system architecture with high light load efficiency |
| CN111769751A (en) * | 2020-05-15 | 2020-10-13 | 海信（山东）空调有限公司 | Direct current power supply circuit and air conditioner |
| CN111555616A (en) * | 2020-05-22 | 2020-08-18 | 华大半导体有限公司 | Power management system and method |
| CN111830393A (en) * | 2020-06-23 | 2020-10-27 | 杭州长川科技股份有限公司 | Power conversion circuit and digital integrated circuit test system |
| CN111756091A (en) * | 2020-06-30 | 2020-10-09 | 深圳市欧瑞博科技股份有限公司 | Power supply switching circuit and intelligent door lock |
| CN113949261A (en) * | 2020-07-17 | 2022-01-18 | 成都秦川物联网科技股份有限公司 | Internet of things intelligent gas meter powered by double power supplies |
| CN111619360A (en) * | 2020-07-28 | 2020-09-04 | 浙江大学 | Energy management control system and control method suitable for solar unmanned aerial vehicle |
| US11318847B2 (en) | 2020-07-28 | 2022-05-03 | Zhejiang University | Energy management control system suitable for solar-powered unmanned aerial vehicle and control method thereof |
| CN112968514A (en) * | 2020-08-20 | 2021-06-15 | 合肥海尔智能电子有限公司 | Power supply circuit and frequency conversion equipment |
| CN112968514B (en) * | 2020-08-20 | 2023-05-12 | 合肥海尔智能电子有限公司 | Power supply circuit and frequency conversion equipment |
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Application publication date: 20190111 |