CN107546971A - A kind of power control circuit of intelligent terminal and the intelligent terminal with the circuit - Google Patents
A kind of power control circuit of intelligent terminal and the intelligent terminal with the circuit Download PDFInfo
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- CN107546971A CN107546971A CN201710880140.6A CN201710880140A CN107546971A CN 107546971 A CN107546971 A CN 107546971A CN 201710880140 A CN201710880140 A CN 201710880140A CN 107546971 A CN107546971 A CN 107546971A
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Abstract
The invention provides a kind of power control circuit of intelligent terminal and the intelligent terminal with the circuit, the power control circuit include break-make control element and button, and break-make control element includes：First input end, it is connected with the anode of intelligent terminal, electric current flows to the first input end from anode；First output end, it is connected with the intelligent terminal with electric loading, electric current flows to from first output end and described uses electric loading；First control terminal, receive external control signal and be in ground connection or earth-free state, control the first input end and the first output in the state of being turned on or off；The button receives outside pressing operation by the opening on the shell, including：First connection end, it is connected with first control terminal；Second connection end, it is connected to ground.After adopting the above technical scheme, controlling the on/off of the intelligent terminal in hardware, power-off shutdown can be carried out to intelligent terminal in software fault or restarting operates.
Description
Technical field
The present invention relates to intelligent terminal field, more particularly to a kind of power control circuit of intelligent terminal and there is the circuit
Intelligent terminal.
Background technology
At present, the intelligent terminal such as smart mobile phone, tablet personal computer, multimedia player is usually used in daily life, work
In, it is convenient for people to realize the functions such as contact external, browsing file, amusement.The intelligent terminal is provided with power key, that is,
POWER keys, operated for switching on and shutting down, such as power key described in long-press can be started shooting, shuts down or restarted.But the electricity
The work of source key is closely related with the software of the intelligent terminal, such as when the intelligent terminal is in open state, user
After power key described in long-press, occur option of operation on the screen of the intelligent terminal, including shut down, restart, change scene
The options such as pattern, user need to select operation in next step could complete follow-up operating procedure, realize operation purpose.Many institute's weeks
Know, the operation of software inevitably BUG, result even in deadlock when serious, that is, the intelligent terminal is soft
Part program enters endless loop, can not break away from, and can not also receive new task and operation, in this case obviously can not possibly be by soft
Part mode operates to the intelligent terminal, also just can not shut down or restart.
For the problem, solution method common in the art is that the intelligent terminal is powered off, and is then re-powered,
The mode namely " restarted firmly ", the battery than intelligent terminal as will be described are removed, or treat the electricity consumption of the intelligent terminal
Oneself shutdown after to the greatest extent.However, there is problems with such settling mode：
1. many intelligent terminals employ the non-removable design of battery, can not be broken by way of removing battery
Electricity；
2. waiting intelligent terminal electricity to exhaust needs the long period, the normal use of user is influenceed.
Therefore, can, it is necessary to which a kind of solution intelligent terminal is in the technical scheme that hardware view is shut down or is restarted
Broken down in the intelligent terminal, the intelligent terminal is shut down when software does not work or restarts behaviour
Make, to carry out further starting shooting or detecting to intelligent terminal operating.
The content of the invention
In order to overcome above-mentioned technological deficiency, it is an object of the invention to provide a kind of power control circuit of intelligent terminal and
Intelligent terminal with the circuit, by anode and with break-make control element and button is set between electric loading, facilitating
User carries out power operation to the intelligent terminal, realizes the control to power supply.
The application's in a first aspect, discloses a kind of power control circuit of intelligent terminal, in the intelligent terminal,
Including break-make control element and button, the break-make control element includes：
First input end, it is connected with the anode of the intelligent terminal, electric current flows to described from the anode
One input；
First output end, it is connected with the intelligent terminal with electric loading, described in electric current from first output end flow direction
Use electric loading；
First control terminal, receive external control signal be in ground connection or earth-free state, control the first input end and
First output is in the state of being turned on or off；
The button receives outside press on the inside of the shell of the intelligent terminal, by the opening on the shell
Press operation, including：
First connection end, it is connected with first control terminal；
Second connection end, it is connected to ground；
When the button does not receive outside pressing operation, first connection end and second connection end are in and disconnect shape
State, first control terminal is earth-free, and the first input end and the first output end are in the conduction state, the anode to
The electricity consumption load supplying；
When the button receives outside pressing operation, first connection end and second connection end are in the conduction state,
It is grounded first control terminal, the first input end and the second input are off, so that the battery is just
Pole is disconnected with described with electric loading.
In some embodiments of the application first aspect, the break-make control element is relay, and described first is defeated
It is one group of normally-closed contact to enter end and the first output end；The break-make control element also includes：Second control terminal, with the battery just
Pole connects, and second control terminal forms one group of auxiliary contact corresponding with the normally-closed contact with first control terminal；When
When the button receives outside pressing operation, the anode, the first control terminal, the second control terminal, button and common group of ground
Into subsidiary loop, make the coil generating electromagnetic power of the relay, disconnect the first input end and the first output end composition
Normally-closed contact.
In some embodiments of the application first aspect, the power control circuit also includes：First resistor, it is described
The first end of first resistor is connected with the anode, and the second end of the first resistor is connected with second control terminal,
For adjusting the size of current of the subsidiary loop.
In some embodiments of the application first aspect, the power control circuit also includes：Voltage-regulator diode, institute
The plus earth of voltage-regulator diode is stated, negative electrode is connected with second control terminal, for keeping the voltage of second control terminal
It is stable.
In some embodiments of the application first aspect, the break-make control element is switch triode, described
One input is the colelctor electrode of the switch triode, and first output end is the emitter stage for switching triode；It is described
First control terminal is the base stage for switching triode；The power control circuit also includes：Second resistance, the second resistance
First end be connected with the anode, the second end of the second resistance is connected with first control terminal, for adjusting
The base current size of first control terminal；When the button does not receive outside pressing operation, first control terminal is
High-voltage state, the break-make control element are in the conduction state；When the button receives outside pressing operation, described first
Control terminal is low-voltage state, and the break-make control element is in cut-off state.
In some embodiments of the application first aspect, the power control circuit also includes：Transient state suppresses two poles
Pipe, the first end that the transient state suppresses diode are connected with first output end, and the transient state suppresses the second end of diode
Ground connection；When the power control circuit state change, the transient state suppresses diode and absorbs surge.
In some embodiments of the application first aspect, the break-make control element is triple gate chip, described
One input and one group of input and output pin that the first output end is the triple gate chip, first control terminal are described three
The controlling switch of state door chip；The triple gate chip also includes：Power pins, it is connected with the anode；The power supply
Control circuit also includes：3rd resistor, the first end of the 3rd resistor are connected with the anode, the 3rd resistor
Second end is connected with first control terminal；
When the button does not receive outside pressing operation, first control terminal is high-voltage state, the break-make control
Element processed is in low resistive state；
When the button receives outside pressing operation, first control terminal is low-voltage state, the break-make control
Element is in high-impedance state.
The second aspect of the application, discloses a kind of intelligent terminal, and the intelligent terminal includes above-mentioned power control circuit.
In some embodiments of the application second aspect, the opening and the intelligence on the intelligent terminal shell are whole
The power key at end is in same side.
In some embodiments of the application second aspect, the opening is circle, and diameter is not more than 2 millimeters.
After employing above-mentioned technical proposal, compared with prior art, have the advantages that：
1. controlling the on/off of the intelligent terminal using hardware mode, flexible mode of operation is provided the user；
2. power-off shutdown can be carried out to intelligent terminal in software fault or restarting operates.
Brief description of the drawings
Fig. 1 is the structural representation for meeting the power control circuit of intelligent terminal in one embodiment of the present invention；
Fig. 2 is the structural representation for meeting the power control circuit of intelligent terminal in another preferred embodiment of the present invention；
Fig. 3 is the structural representation for meeting the power control circuit of intelligent terminal in further embodiment of the present invention；
Fig. 4 is the structural representation for meeting intelligent terminal in one embodiment of the present invention.
Reference：
101- break-makes control element, 1011- first input ends, the output ends of 1012- first, the control terminals of 1013- first,
The control terminals of 1014- second, 1015- power pins, 102- anodes, 103- electric loadings, 201- buttons, the electricity of 202- first
Resistance, 203- voltage-regulator diodes, 204- second resistances, 205- Transient Suppression Diodes, 206- 3rd resistors, 301-, 401- intelligence
Can terminal, 402- openings, 403- power keys.
Embodiment
Presently filed embodiment is illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book understands other advantages and effect of the application easily.
In described below, refer to the attached drawing, accompanying drawing describes some embodiments of the application.It should be appreciated that also it can be used
Other embodiment, and can be carried out in the case of without departing substantially from spirit and scope of the present disclosure mechanical composition, structure, electrically with
And the detailed description below operational change should not be considered limiting, and the scope of embodiments herein
Only terms used herein are limited by the claims for the patent announced merely to describing specific embodiment, and be not
It is intended to limit the application.The term of space correlation, for example, " on ", " under ", "left", "right", " following ", " lower section ", " bottom ",
" top ", " top " etc., it can use in the text in order to illustrate an element shown in figure or feature and another element or spy
The relation of sign.
Although the grade of term first, second is used for describing various elements herein in some instances, these elements
It should not be limited by these terms.These terms are only used for making a distinction an element with another element.
Furthermore as used in herein, singulative " one ", "one" and "the" are intended to also include plural shape
Formula, unless having opposite instruction in context it will be further understood that term "comprising", " comprising " show described spy be present
Sign, step, operation, element, component, project, species, and/or group, but it is not excluded for other one or more features, step, behaviour
Work, element, component, project, the presence of species, and/or group, appearance or addition term "or" used herein and "and/or" quilt
Be construed to inclusive, or mean any one or any combinations therefore, " A, B or C " or " A, B and/or C " mean " with
Descend any one：A；B；C；A and B；A and C；B and C；A, B and C " are only when element, function, step or the combination of operation are in some sides
When inherently mutually exclusive under formula, the exception of this definition just occurs.
As it is used herein, term " if " depend on context can be construed as to imply that " when ... when " or
" once ... if " or " in response to determining " or " in response to detecting ".Similarly, phrase " if it is determined that " or " if detection
To [condition or event of statement] " depending on context be alternatively construed as to imply that " once it is determined that then " or " in response to
It is determined that " either " once detecting [condition or event of statement] " or " in response to detecting [condition or event of statement] ".
Refering to Fig. 1, to meet the structural representation of the power control circuit of intelligent terminal in one embodiment of the present invention,
The power control circuit is located inside the intelligent terminal 401, including：
- break-make control element 101
Break-make control element 101, it is the core control element of the power control circuit, being serially connected in needs controlled electricity
In source circuit, possess connection or cut off the ability of the power circuit.The break-make control element 101 can be relay, open
It is relay to close electronic device, break-makes control element described in the present embodiment 101 such as device, logic chip.
- button 201
Button 201 can receive the electronic device for causing electrical connection state to change after outside pressing operation, the present embodiment
Described in button 201 on the inside of the shell of the intelligent terminal 401, received by the opening 402 on the shell described outer
Portion's pressing operation.The button 201 has the first connection end and second connection end, when the button 201 does not receive outside pressing
During operation, first connection end and second connection end are off；When the button 201 receives outside pressing operation
When, first connection end and second connection end are in the conduction state.When the outside pressing operation revocation, described first connects
Connect end and second connection end is recovered to off-state.First connection end and the position of second connection end can exchange, not shadow
The function of ringing the button 201 uses.The second connection end ground connection 301.
The break-make control element 101 includes：
- first input end 1011
First input end 1011, it is connected with the anode 102 of the intelligent terminal 401, electric current is from the anode
102 flow to the first input end 1011.In the present embodiment, the first input end 1011 is one of the relay normally closed
Contact.The battery is the energy storage component in the intelligent terminal 401, stores electric energy, and the battery has positive pole and negative pole,
Electric current is flowed out from the anode 102 during work, and GND is flowed back to after overload, forms electric power loop.
- the first output end 1012
First output end 1012, it is connected with the intelligent terminal 401 with electric loading 103, electric current exports from described first
End 1012 flows to the electric loading 103.Described with electric loading 103 is all power consumption components in the intelligent terminal 401
Summation, such as the consuming parts such as CPU, display screen, loudspeaker.In the present embodiment, first output end 1012 be it is described after
Another normally-closed contact of electrical equipment.The first input end 1011 and first output end 1012 collectively constitute one group and normally closed touched
Point, when not receiving control operation, the first input end 1011 and first output end 1012 are in the conduction state.
- the first control terminal 1013
First control terminal 1013, receive external control signal and be in ground connection or earth-free state, control first input
The output end 1012 of end 1011 and first is on or off-state.In the present embodiment, first control terminal 1013 is described
One auxiliary contact of relay, are connected with the first connection end of the button 201.
- the second control terminal 1014
Second control terminal 1014, it is connected with the anode 102, second control terminal 1014 is the relay
Another auxiliary contact, one group of auxiliary contact corresponding with the normally-closed contact is formed with first control terminal 1013.It is described
If there is electric current between the first control terminal 1013 and the second control terminal 1014 by the way that coil electricity in the relay can be made simultaneously
Electromagnetic force is produced, and then changes the contact condition of the normally-closed contact, disconnects the normally-closed contact, is also just made described first defeated
Enter the output end 1012 of end 1011 and first to disconnect.Second control terminal 1014 described in the present embodiment connects with the anode 102
Connect, be also at high potential state, when the first control terminal 1013 earth-free 301, first control terminal 1013 is hanging,
Potential difference is not produced with second control terminal 1014, coil electricity will not be made to produce electromagnetic force；When first control terminal
During 1013 ground connection 301, potential difference is produced with second control terminal 1014, and then makes to produce electric current on the coil, so as to produce
Raw electromagnetic force, the action for triggering normally-closed contact to disconnect.
The operation principle of the power control circuit is, when the button 201 does not receive outside pressing operation, described
One connection end and second connection end are off, and first control terminal 1013 is earth-free, the first input end 1011
In the conduction state with the first output end 1012, the anode 102 is powered to described with electric loading 103.The now intelligence
Energy terminal 401 is in normal operating conditions, and battery provides electric energy to be described with electric loading 103, makes each in the intelligent terminal 401
Module works.
When the button 201 receives outside pressing operation, first connection end and second connection end are on shape
State, first control terminal 1013 is grounded, and then makes the anode 102, the first control terminal 1013, the second control terminal
1014th, button 201 and ground 301 collectively constitute the subsidiary loop of relay, make the coil generating electromagnetic power of the relay, disconnect
The normally-closed contact of the output end 1012 of first input end 1011 and first composition so that the anode 102 with it is described
Disconnected with electric loading 103.Now the electric power loop is disconnected, and the electric loading 103 cannot get electric energy and supply, described
Intelligent terminal 401 is forced to stop work.That is, can be by the intelligence for the outside pressing operation of the button 201
Energy terminal 401 interrupts power supply supply in hardware view, realizes forced shutdown.It is described to press when the outside pressing operation revocation
Key 201 recovers normal condition, and first connection end and second connection end disconnect, and the normally-closed contact of the relay recovers normally closed
State, turn on the output end 1012 of first input end 1011 and first, the electric loading 103 is recovered power supply and supplied, can
Again power-on operation is performed to the intelligent terminal 401.
In some embodiments of the application first aspect, the power control circuit also includes：
- first resistor 202
First resistor 202, the first end of the first resistor 202 are connected with the anode 102, the first resistor
202 the second end is connected with second control terminal 1014, for adjusting the size of current of the subsidiary loop.The battery is just
It is maximum in the subsidiary loop that pole 102, the first control terminal 1013, the second control terminal 1014, button 201 and ground 301 collectively constitute
The coil of generation electromagnetic force of the impedance between the control terminal 1014 of the first control terminal 1013 and second, but the coil
Operating current preferably control within the specific limits, therefore the anode 102 and second control terminal 1014 it
Between concatenate the first resistor 202, add the impedance of the subsidiary loop, the subsidiary loop can either be protected to avoid
Carry, and can reduces the power consumption of subsidiary loop, extends service time of battery.
In some embodiments of the application first aspect, the power control circuit also includes：
- voltage-regulator diode 203
Voltage-regulator diode 203, the plus earth of the voltage-regulator diode 203, negative electrode connect with second control terminal 1014
Connect, for keeping the voltage stabilization of second control terminal 1014.The voltage-regulator diode 203, refer to reversely hit using pn-junction
State is worn, its electric current can change in very large range and phenomenon that voltage is basically unchanged, the diode of manufactured pressure stabilization function.
The zener diode 203 can be Schottky diode, and the maximum feature of Schottky (Schottky) diode is positive pressure
Drop smaller, in the case of same electric current, its forward voltage drop is many smaller, and its recovery time is short in addition.The relay
Device at work, ensures that the voltage stabilization between the control terminal 1014 of the first control terminal 1013 and second is extremely important, described
Voltage-regulator diode 203 can maintain the voltage of second control terminal 1014 in one stable upper range, work as voltage
When fluctuating, too high voltage can puncture the voltage-regulator diode 203, so as to protect the relay not by high-tension
Damage.
Refering to Fig. 2, to meet the structural representation of the power control circuit of intelligent terminal in another preferred embodiment of the present invention
Figure, break-make control element described in the present embodiment 101 is switch triode, and the first input end 1011 is the switch three-level
The colelctor electrode of pipe, first output end 1012 are the emitter stage for switching triode；First control terminal 1013 is institute
State the base stage of switch triode.The profile and common triode profile phase of the switch triode (Switch transistor)
Together, it works in cut-off region and saturation region, equivalent to the cut-out and conducting of circuit, because it has the work completed open circuit and connected
With being widely used in various on-off circuits, such as conventional switching power circuit, drive circuit, high-frequency oscillating circuits, modulus
Change-over circuit, impulse circuit and output circuit etc..The switch triode, which is otherwise known as, turns off triode.Described in the present embodiment
Switch triode is NPN type triode, by controlling the base voltage of the switch triode, can influence base stage to emitter stage
Electric current, you can realize the control to the on or off state of collector and emitter.In order to realize above-mentioned control function, institute
Stating power control circuit also includes：
- second resistance 204
The first end of the second resistance 204 is connected with the anode 102, the second end of the second resistance 204
It is connected with first control terminal 1013, for adjusting the base current size of first control terminal 1013.
When the button 201 does not receive outside pressing operation, the second resistance 204 is relative to first control terminal
1013 play the effect of pull-up resistor so that the current potential of first control terminal 1013 is equal to the electricity of the positive source 102
Position, the base stage is high-voltage state, and the PN junction between the base stage and emitter stage turns on, and then the switch triode is in
Conducting state.Now electric current flows through the collector and emitter of the switch triode from the anode 102, described in arrival
With electric loading 103, now the intelligent terminal 401 is in normal operating conditions.
When the button 201 receives outside pressing operation, first control terminal 1013 is directly grounded 301, the base
Extremely low-voltage state, the PN junction cut-off between the base stage and emitter stage, the switch triode are in cut-off state, electric current
The electric loading 103 can not be reached by the switch triode, the intelligent terminal 401 is forced to stop work.
In some embodiments of the application first aspect, the power control circuit also includes：
- Transient Suppression Diode 205
The first end that the transient state suppresses diode 205 is connected with first output end 1012, and the transient state suppresses two
The second end ground connection 301 of level pipe 205.Transient Suppression Diode (Transient Voltage Suppressor) abbreviation TVS, it is
A kind of high-effect protection device.When the transient state suppresses the two poles of the earth of diode 205 by reverse transient state high energy impact events, its energy
With the speed of 10 minus 12 power second-time, the high impedance of its two interpolar is changed into Low ESR, absorbs up to thousands of watts of surge
Power, the voltage clamp of two interpolars is set the precision components in electronic circuit effectively to be protected, from various in a predetermined value
The damage of surge pulse.When the button 201 switches between the state being pressed and the state not being pressed, institute can be caused
Electric power loop described in power control circuit on or off is stated, in the process, electrical impact can be inevitably generated, especially
It is that electric current from anode 102 can be poured into the short time described uses electric loading when the electric power loop restores electricity
103, it is therefore necessary in the break-make control element 101 and described take safeguard measure between electric loading 103.Optimal guarantor
Position is protected just in the first output end 1012 and the junction with electric loading 103, the with the Transient Suppression Diode 205
One end connects, that is, its negative electrode；Second end of the Transient Suppression Diode 205, that is, plus earth 301.When described
During power control circuit state change, the transient state suppresses the impact that diode 205 absorbs surge, and protection is described to use electric loading
Precision element in 103.
Refering to Fig. 3, to meet the structural representation of the power control circuit of intelligent terminal in further embodiment of the present invention
Figure, break-make control element described in the present embodiment 101 is triple gate chip, the output end of first input end 1011 and first
1012 be one group of input and output pin of the triple gate chip, and first control terminal 1013 is the control of the triple gate chip
Pin processed.It both can be general two-valued function circuit that tri-state, which refers to its output, i.e., normal high level (logic 1) or low level (are patrolled
Collect 0), distinctive high impedance status can be kept again.High-impedance state is equivalent to cut-off state (resistance is very big, equivalent to open circuit).Institute
It can be 74LS125 to state triple gate chip, have four tunnel tri-state doors.When the controlling switch of the triple gate chip is high electricity
Usually, I/O channel corresponding to the controlling switch is low resistive state, and first output end 1012 can follow described
The signal logic of one input 1011, both can regard conducting as.When the controlling switch of the triple gate chip is low level
When, I/O channel corresponding to the controlling switch is high-impedance state, is equal to first output end 1012 and described the
One input 1011 is blocked, and electric current can not pass through.The triple gate chip also includes power pins 1015, with the battery just
Pole 102 connects, and the anode 102 provides working power for the triple gate chip, at the same also provide larger electric current with
Toilet states the output channel of triple gate chip, that is, first output end 1012 has larger driving force, can bear
The load with electric loading 103.
The power control circuit also includes：
- 3rd resistor 206
The first end of the 3rd resistor 206 is connected with the anode 102, the second end of the 3rd resistor 206
It is connected with first control terminal 1013.When the button 201 does not receive outside pressing operation, the phase of 3rd resistor 206
Play a part of pull-up resistor for first control terminal 1013, first control terminal 1013 is high-voltage state, then institute
State triple gate chip and be in low resistive state, 1011 and first output end of first input end 1012 is approximate to be turned on.Now electric current
The I/O channel of the triple gate chip is flowed through from the anode 102, reaches the electric loading 103, now institute
State intelligent terminal 401 and be in normal operating conditions.When the button 201 receives outside pressing operation, first control terminal
1013 ground connection 301, are low-voltage state, the triple gate chip is in high-impedance state, and electric current can not pass through the triple gate core
Piece reaches the electric loading 103, and the intelligent terminal 401 is forced to stop work.
Refering to Fig. 4, to meet the structural representation of intelligent terminal in one embodiment of the present invention, the intelligent terminal
401 include above-mentioned power control circuit, there is an opening 402 on the shell of the intelligent terminal 401, and the button 201 is located at institute
The inner side of opening 402 is stated, outside pressing operation is received by the opening 402.Laid in the present embodiment by way of opening 402
The button 201, rather than the button 201 is laid in the case surface of the intelligent terminal 401, the button can be prevented
201 are misused, and cause abnormal shutdown.If user wants to apply pressing operation by 402 pairs of the opening button 201,
The opening 402 must be stretched into by the more elongated instrument of a profile, it is described can effectively to prevent that the touching in the case of other from causing
Button 201 is pressed.
In some embodiments of the application second aspect, opening 402 on the shell of intelligent terminal 401 with it is described
The power key 403 of intelligent terminal 401 is in same side.The advantages of so setting is the operating habit for meeting user, Yong Huxu
When shutting down or restarting the intelligent terminal 401, as long as finding the power key 403, you can find the opening
402。
In some embodiments of the application second aspect, the opening 402 is circle, and diameter is not more than 2 millimeters.This
Embodiment is limited the geometric properties of the opening 402, and circle is relatively conventional hole class design, when the shell receives
External pressure act on when, can effectively disperse it is described opening 402 around stress, avoid it is described opening 402 be destroyed.It is described to open
The diameter of mouth 402 is not more than 2 millimeters, and considers the situation for preventing maloperation, 402 sizes of such opening, it is difficult to pass through
Common contact carries out pressing operation to the button 201, it is necessary to could pass through the opening 402 by tapering object.
It should be noted that embodiments of the invention have preferable implementation, and not the present invention is made any type of
Limitation, any one skilled in the art change or are modified to possibly also with the technology contents of the disclosure above equivalent effective
Embodiment, as long as without departing from the content of technical solution of the present invention, above example is made according to technical spirit of the invention
Any modification or equivalent variations and modification, in the range of still falling within technical solution of the present invention.
Claims (10)
1. a kind of power control circuit of intelligent terminal, in the intelligent terminal, including break-make control element and button, its
It is characterised by,
The break-make control element includes：
First input end, it is connected with the anode of the intelligent terminal, it is defeated that electric current from the anode flows to described first
Enter end；
First output end, it is connected with the intelligent terminal with electric loading, electric current flows to the electricity consumption from first output end
Load；
First control terminal, receive external control signal and be in ground connection or earth-free state, control the first input end and first
Output is in the state of being turned on or off；
The button receives outside pressing behaviour on the inside of the shell of the intelligent terminal, by the opening on the shell
Make, including：
First connection end, it is connected with first control terminal；
Second connection end, it is connected to ground；
When the button does not receive outside pressing operation, first connection end and second connection end are off, institute
It is earth-free to state the first control terminal, the first input end and the first output end are in the conduction state, and the anode is to described
Electricity consumption load supplying；
When the button receives outside pressing operation, first connection end and second connection end are in the conduction state, make institute
State the first control terminal ground connection, the first input end and the second input be off so that the anode with
It is described to be disconnected with electric loading.
2. power control circuit as claimed in claim 1, it is characterised in that
The break-make control element is relay, and the first input end and the first output end are one group of normally-closed contact；
The break-make control element also includes：
Second control terminal, it is connected with the anode, second control terminal forms one group and institute with first control terminal
State auxiliary contact corresponding to normally-closed contact；
When the button receives outside pressing operation, the anode, the first control terminal, the second control terminal, button and ground
Subsidiary loop is collectively constituted, makes the coil generating electromagnetic power of the relay, disconnects the first input end and the first output end
The normally-closed contact of composition.
3. power control circuit as claimed in claim 2, it is characterised in that
The power control circuit also includes：
First resistor, the first end of the first resistor are connected with the anode, the second end of the first resistor and institute
The connection of the second control terminal is stated, for adjusting the size of current of the subsidiary loop.
4. power control circuit as claimed in claim 2 or claim 3, it is characterised in that
The power control circuit also includes：
Voltage-regulator diode, the plus earth of the voltage-regulator diode, negative electrode are connected with second control terminal, for keeping described
The voltage stabilization of second control terminal.
5. power control circuit as claimed in claim 1, it is characterised in that
The break-make control element is switch triode, and the first input end is the colelctor electrode for switching triode, described
First output end is the emitter stage for switching triode；First control terminal is the base stage for switching triode；
The power control circuit also includes：
Second resistance, the first end of the second resistance are connected with the anode, the second end of the second resistance and institute
The connection of the first control terminal is stated, for adjusting the base current size of first control terminal；
When the button does not receive outside pressing operation, first control terminal is high-voltage state, the break-make control member
Part is in the conduction state；
When the button receives outside pressing operation, first control terminal is low-voltage state, the break-make control element
In cut-off state.
6. the power control circuit as described in claim 2 or 5, it is characterised in that
The power control circuit also includes：
Transient Suppression Diode, the first end that the transient state suppresses diode are connected with first output end, the transient state suppression
The second end ground connection of diode processed；
When the power control circuit state change, the transient state suppresses diode and absorbs surge.
7. power control circuit as claimed in claim 1, it is characterised in that
The break-make control element is triple gate chip, and the first input end and the first output end are the triple gate chip
One group of input and output pin, first control terminal are the controlling switch of the triple gate chip；
The triple gate chip also includes：
Power pins, it is connected with the anode；
The power control circuit also includes：
3rd resistor, the first end of the 3rd resistor are connected with the anode, the second end of the 3rd resistor and institute
State the connection of the first control terminal；
When the button does not receive outside pressing operation, first control terminal is high-voltage state, the break-make control member
Part is in low resistive state；
When the button receives outside pressing operation, first control terminal is low-voltage state, the break-make control element
In high-impedance state.
A kind of 8. intelligent terminal, it is characterised in that
The intelligent terminal includes power control circuit as claimed in claim 1.
9. intelligent terminal as claimed in claim 8, it is characterised in that
Opening and the power key of the intelligent terminal on the intelligent terminal shell are in same side.
10. intelligent terminal as claimed in claim 8 or 9, it is characterised in that
The opening is circle, and diameter is not more than 2 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710880140.6A CN107546971A (en) | 2017-09-26 | 2017-09-26 | A kind of power control circuit of intelligent terminal and the intelligent terminal with the circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710880140.6A CN107546971A (en) | 2017-09-26 | 2017-09-26 | A kind of power control circuit of intelligent terminal and the intelligent terminal with the circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107546971A true CN107546971A (en) | 2018-01-05 |
Family
ID=60964436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710880140.6A Pending CN107546971A (en) | 2017-09-26 | 2017-09-26 | A kind of power control circuit of intelligent terminal and the intelligent terminal with the circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107546971A (en) |
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Application publication date: 20180105 |
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