CN101043144A - Electrical source managing method of portable electronic products and apparatus thereof - Google Patents
Electrical source managing method of portable electronic products and apparatus thereof Download PDFInfo
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- CN101043144A CN101043144A CNA2007100274586A CN200710027458A CN101043144A CN 101043144 A CN101043144 A CN 101043144A CN A2007100274586 A CNA2007100274586 A CN A2007100274586A CN 200710027458 A CN200710027458 A CN 200710027458A CN 101043144 A CN101043144 A CN 101043144A
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- power supply
- voltage stabilizing
- enable pin
- supply voltage
- stabilizing module
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses power source managing method of portable electric product, the cell provides operating power for system via a power supply voltage-stabilizing module with enable end, at the same time, a press switch is set at the output end of the power supplying cell, at the two state of running normally and closing, by detecting the press switch action signal and starting and closing information to make the enable end of the power supply voltage-stabilizing module in effective or ineffective state, the operating voltage output end of the power supply voltage-stabilizing module makes corresponding response according to the effective or ineffective state. The invention can fully realize the electricity-cutting off to save energy, and it is easy, the operation is convenient.
Description
Technical field
The present invention relates to a kind of method for managing power supply, particularly a kind of method for managing power supply that is used for portable type electronic product; The invention still further relates to the device of realizing said method in addition.
Background technology
In existing portable type electronic product, be that power supply provides always and do not disconnect for a kind of method of the management of lithium battery power supply electrical source consumption.To having the portable type electronic product of superperformance, be very harsh for the requirement of power consumption, so a lot of method for managing power supply is arranged, be the part of power management for the switch control of power supply.Mains switch has the branch of hard switching and soft switch, the realization of hard switching generally is that mechanical switch is realized opening and turn-offing of power supply, when can not using product when long, this method accomplishes thorough outage, save electric quantity consumption, but it is not very convenient using, and increased a mechanical toggle switch, and can influence the compactness of product construction, also can make the static releasing effect bad.Soft switch is to realize opening and turn-offing of power supply by software control, can save mechanical switch, normal power consumption during full speed running, enter battery saving mode by program control during inoperation when long, just close the module of main power consumption, but at this moment program also has a spot of electric quantity consumption also in operation; Be not to cut off the power supply completely, can not well reduce power consumption.
Summary of the invention
The object of the present invention is to provide a kind of method for managing power supply that is used for portable type electronic product, cut off the power supply fully with the saving electric quantity consumption thereby reach realization, and realize simple, easy to operate.
To achieve these goals, a kind of method for managing power supply that is used for portable type electronic product provided by the invention, supplying cell is exported the working power that system is provided by a power supply Voltage stabilizing module that has Enable Pin, simultaneously a key switch is set at the supplying cell output, under normal operation of system and shutdown two states, by detection to the key switch actuating signal, and the pass of arriving according to respective detection, boot-strap information, control that Enable Pin is in effectively or disarmed state on the power supply Voltage stabilizing module, the power supply Voltage stabilizing module is according to the effective or disarmed state of its Enable Pin, and its working power output is corresponding makes output or disconnect the response of powering.
The present invention is under system's normal operating condition, by continuing press of key switch, detect to closing machine information, the Enable Pin that control power supply Voltage stabilizing module by system's master chip processing unit this moment is in disarmed state, makes this power supply Voltage stabilizing module make the response that disconnects power supply.
The present invention by press of key switch, detects and is starting-up signal under system closedown, and the Enable Pin that control power supply Voltage stabilizing module by hardware circuit this moment is in effective status, and this power supply Voltage stabilizing module is made the response of power supply; Product master chip processing unit is brought into operation; After normal operation, the Enable Pin of being controlled the power supply Voltage stabilizing module by system's master chip processing unit is in effective status, makes stopping also to continue power supply under the press of key switch situation.
Enable Pin of the present invention is in effectively or disarmed state is in high or low level input by this end and determines.
Realize the electric power controller of the portable type electronic product of said method, comprise the key switch, switching signal detection module, Enable Pin control module and the power supply Voltage stabilizing module that connect supplying cell, described power supply Voltage stabilizing module is provided with Enable Pin; Key switch one end connects supplying cell, the key switch other end connects the detection signal input of switching signal detection module and the input of Enable Pin control module respectively, and the detection signal output of switching signal detection module connects the detection signal input port of product master chip processing unit; The output of Enable Pin control module connects the Enable Pin in the power supply Voltage stabilizing module, the Enable Pin of power supply in the Voltage stabilizing module also connects in the product master chip processing unit output interface by the program control output level, the input of power supply Voltage stabilizing module connects supplying cell, and the output output of power supply Voltage stabilizing module is used to provide the operating voltage of entire product; Described switching signal detection module detects the open and close machine information after key switch triggers, Enable Pin control module responding to switch machine information is also made/invalid commands for controlling to the Enable Pin of power supply Voltage stabilizing module, and the Voltage stabilizing module of powering is at last made output or disconnected the response of power supply.
Switching signal detection module of the present invention mainly comprises triode Q2, divider resistance R1, R4 and pull-up resistor R6, wherein resistance R 1, R4 are concatenated into potential-divider network, potential-divider network one end ground connection, the other end connects the supplying cell positive pole through key switch PLAY, the base stage of triode Q2 connects the dividing point of resistance R 1, R4 serial connection body, its emitter and collector ground connection respectively detects delivery outlet KEYIO with connecing, and collector electrode also pull-up resistor R6 connects operating voltage.
Enable Pin control module of the present invention mainly comprises diode D1, current-limiting resistance R3 and divider resistance R2, R7, wherein divider resistance R2, R7 the serial connection potential-divider network one end ground connection, the other end connects key switch PLAY through diode D1, and the dividing point of resistance R 2, R7 serial connection body connects current-limiting resistance R3 output interface A2 by the program control output level in the master chip processing unit; The dividing point of resistance R 2, R7 serial connection body is for enabling the control output end.
Use the inventive method, as long as just can realize making electric power system of the present invention make the response of opening or closing power supply to product master chip processing unit by the key switch PLAY of switching on and shutting down, and realization is cut off the power supply fully to save electric quantity consumption in closing; In addition, the present invention does not need to have increased a toggle switch, and is easy to operate, realizes simple.
Description of drawings
Fig. 1 for electric power controller of the present invention theory diagram;
Fig. 2 is the circuit theory diagrams of electric power controller of the present invention;
Fig. 3 is the schematic flow sheet of method for managing power supply of the present invention.
Embodiment
As shown in Figure 1, for electric power controller of the present invention theory diagram.Comprise the key switch, switching signal detection module, Enable Pin control module and the power supply Voltage stabilizing module that connect supplying cell, described power supply Voltage stabilizing module is provided with Enable Pin; Key switch can be electronic touch button or mechanical key, and key switch can be integrated in the switching signal detection module.Key switch one end connects supplying cell, the key switch other end connects the detection signal input of switching signal detection module and the input of Enable Pin control module respectively, and the detection signal output of switching signal detection module connects the detection signal input port of product master chip processing unit; The output of Enable Pin control module connects the Enable Pin in the power supply Voltage stabilizing module, the Enable Pin of power supply in the Voltage stabilizing module also connects in the product master chip processing unit output interface by the program control output level, the input of power supply Voltage stabilizing module connects supplying cell, and the output output of power supply Voltage stabilizing module is used to provide the operating voltage of entire product.
Under off-mode, press switch, Enable Pin control module 102 is met with a response, and Enable Pin control module 102 makes power supply Voltage stabilizing module 103 Enable Pins effective then, system's power supply beginning, product master chip processing unit 100 brings into operation, product master chip processing unit 100 can signal to Enable Pin control module 102 after normal operation, power supply Voltage stabilizing module 103 is enabled effectively, be not subjected to the control of key switch state, can continue power supply; At off-mode, after switching signal detection module 101 is received starting-up signal, can send to product master chip processing unit 100 to signal simultaneously, effectively at this moment the master chip processing unit can make power supply Voltage stabilizing module 103 Enable Pins, even button unclamps, system's power supply is normal.
Under the product systems normal operating condition, after switching signal detection module 101 is received off signal, product master chip processing unit 100 is met with a response, product master chip processing unit 100 signals to Enable Pin control module 102 then, make power supply Voltage stabilizing module 103 Enable Pins invalid, system enters off-mode.
As shown in Figure 2, be the circuit theory diagrams of electric power controller of the present invention.The switching signal detection module comprises: divider resistance R1, R4, triode Q2, pull-up resistor R6, wherein resistance R 1, R4 are concatenated into potential-divider network, potential-divider network one end ground connection, the other end connects the supplying cell positive pole through key switch PLAY, the base stage of triode Q2 connects the dividing point of resistance R 1, R4 serial connection body, its emitter and collector ground connection respectively detects delivery outlet KEYIO with connecing, and collector electrode also pull-up resistor R6 connects operating voltage.
After pressing the PLAY key, the anodal VBAT+ voltage (lithium battery is pressed in 3.3V-4.2V) of lithium battery is high level by the base voltage to triode after R1 and the R4 dividing potential drop, triode Q2 conducting, the detection delivery outlet KYEIO of switching signal detection module is a low level, if this moment, system was in the normal operating condition of start, meeting wait button is pressed always and was sent afterwards off signal in 1.2 seconds to product master chip processing unit, the master chip processing unit can make A2 end output low level, the LDOEN end is low level like this, system's supply module Enable Pin is invalid, the whole system outage enters off-mode.Otherwise, if system is in off-mode, can after powering on, sends starting-up signal and give product master chip processing unit, the master chip processing unit can make A2 end output high level, and at this moment, even button unclamps, the LDOEN end also continues as high level, and system's power supply is normal.When the PLAY key is not pressed, the base voltage of triode is low, not conducting of triode Q2, and the detection delivery outlet KEYIO of switching signal detection module is a high level, does not does not open or close the machine signal and sends.
The Enable Pin control module mainly comprises diode D1, current-limiting resistance R3 and divider resistance R2, R7, wherein divider resistance R2, R7 the serial connection potential-divider network one end ground connection, the other end connects the key switch PLAY of switching signal detection module through diode D1, and the dividing point of resistance R 2, R7 serial connection body connects current-limiting resistance R3 output interface A2 by the program control output level in the master chip processing unit; The dividing point of resistance R 2, R7 serial connection body is for enabling the control output end.
When system is in off-mode, press the PLAY key, this moment, the Enable Pin control module can allow the Enable Pin LDOEN of power supply Voltage stabilizing module be high level.Under the system closedown state, output interface A2 by the program control output level in the master chip processing unit does not export, lithium battery voltage scope is at 3.3V～4.2V, reduce to 2.8～3.7V by voltage behind the diode D1, voltage range by LDOEN end behind the divider resistance is at 2.4V～3.2V, be identified as high level, make the power supply Voltage stabilizing module that voltage output be arranged; When system is in normal operating condition, then, control the level of Enable Pin LDOEN by the output level of this output interface of corresponding program control A2 is set, make the response of power supply Voltage stabilizing module open or close the voltage supply.
The power supply Voltage stabilizing module comprises filter capacitor C1, C2, C3, linear voltage regulator U1, and the input voltage of U1 is VBAT+, and output voltage is VCC, and the input Enable Pin is LDOEN, when Enable Pin LDOEN is high level, enables effectively, and VCC has voltage; When Enable Pin LDOEN was low level, it was invalid to enable, and VCC does not have voltage output, the whole system outage.
As shown in Figure 3, be the schematic flow sheet of method for managing power supply of the present invention.When system is under the off-mode, press the PLAY key, can make the detection delivery outlet KYEIO of switching signal detection module is low level, thereby send starting-up signal to master chip unit 100, the master chip processing unit can make A2 end output high level, at this moment, even button unclamps, the LDOEN end also continues as high level, and system's power supply is normal.The Enable Pin control module is being controlled the Enable Pin LDOEN of the Voltage stabilizing module of powering simultaneously, makes it effective, and promptly electric power system has output voltage, gives the power supply of product master chip unit; System brings into operation, and the master chip processing unit of this moment does not also make the Enable Pin of product power supply Voltage stabilizing module effective, and promptly program output interface A2 also is not changed to high level by program, is in high-impedance state, if unclamp button at once, can come back to off-mode; Needs etc. are after system brings into operation normally, and making A2 by the procedure operation in master chip is high level, and unclamp button this moment, and system still can normally move, and is not subjected to the control of key switch state.Wherein the program of control program output interface A2 output high level is as follows:
In a, (Register_GPOA2) //the GPO_A2 control register
Set GPOA2_DATA_Num, a//, make to be output as high level to GPO_A2 Data Position 1
Set GPOA2_EN_Num, a //, make GPO_A2 output effectively to GPO_A2 control position 1
out (Register_GPOA2)，a
Under system's normal operating condition, press the PLAY key, can make and detect delivery outlet KYEIO is low level, system can wait for that this button continues, if button unclamps in the wait process, system can not enter off-mode, but continues normal operation; After button continued about 1.2 seconds, it was low level that system makes program output interface A2 by procedure operation, and Enable Pin LDOEN also is a low level, and just Enable Pin LDOEN is invalid, and the power supply Voltage stabilizing module does not have voltage output, and off-mode is got back to by system.Wherein the program of control program output interface A2 output low level is as follows:
In a, (Register_GPOA2) //the GPO_A2 control register
Res GPOA2_DATA_Num, a //, make to be output as low level to GPO_A2 Data Position 0
out (Register_GPOA2)，a。
Claims (7)
1, a kind of method for managing power supply of portable type electronic product, it is characterized in that: supplying cell is exported the working power that system is provided by a power supply Voltage stabilizing module that has Enable Pin, simultaneously a key switch is set at the supplying cell output, under normal operation of system and shutdown two states, by detection to the actuating signal of key switch, and the pass of arriving according to respective detection, boot-strap information, control that Enable Pin is in effectively or disarmed state on the power supply Voltage stabilizing module, the power supply Voltage stabilizing module is according to the effective or disarmed state of its Enable Pin, and its working power output is corresponding makes output or disconnect the response of powering.
2, the method for managing power supply of portable type electronic product according to claim 1, it is characterized in that: under system's normal operating condition, by continuing press of key switch, detect to closing machine information, the Enable Pin that control power supply Voltage stabilizing module by system's master chip processing unit this moment is in disarmed state, makes this power supply Voltage stabilizing module make the response that disconnects power supply.
3, the method for managing power supply of portable type electronic product according to claim 1, it is characterized in that: under system closedown, pass through press of key switch, detect and be starting-up signal, the Enable Pin that control power supply Voltage stabilizing module by hardware circuit this moment is in effective status, and this power supply Voltage stabilizing module is made the response of power supply; Product master chip processing unit is brought into operation; After normal operation, the Enable Pin of being controlled the power supply Voltage stabilizing module by system's master chip processing unit is in effective status, makes stopping also to continue power supply under the press of key switch situation.
4, according to the method for managing power supply of claim 1,2 or 3 described portable type electronic products, it is characterized in that: described Enable Pin is in effectively or disarmed state is in high or low level input by this end and determines.
5, a kind of electric power controller of portable type electronic product is characterized in that: comprise the key switch, switching signal detection module, Enable Pin control module and the power supply Voltage stabilizing module that connect supplying cell, described power supply Voltage stabilizing module is provided with Enable Pin; Key switch one end connects supplying cell, the key switch other end connects the detection signal input of switching signal detection module and the input of Enable Pin control module respectively, and the detection signal output of switching signal detection module connects the detection signal input port of product master chip processing unit; The output of Enable Pin control module connects the Enable Pin in the power supply Voltage stabilizing module, the Enable Pin of power supply in the Voltage stabilizing module also connects in the product master chip processing unit output interface by the program control output level, the input of power supply Voltage stabilizing module connects supplying cell, and the output output of power supply Voltage stabilizing module is used to provide the operating voltage of entire product; Described switching signal detection module detects the open and close machine information after key switch triggers, Enable Pin control module responding to switch machine information is also made/invalid commands for controlling to the Enable Pin of power supply Voltage stabilizing module, and the Voltage stabilizing module of powering is at last made output or disconnected the response of power supply.
6, the electric power controller of portable type electronic product according to claim 5, it is characterized in that: described switching signal detection module mainly comprises triode Q2, divider resistance R1, R4 and pull-up resistor R6, wherein resistance R 1, R4 are concatenated into potential-divider network, potential-divider network one end ground connection, the other end connects the supplying cell positive pole through key switch PLAY, the base stage of triode Q2 connects the dividing point of resistance R 1, R4 serial connection body, its emitter and collector is ground connection and connect the detection delivery outlet respectively, and collector electrode also pull-up resistor R6 connects operating voltage.
7, the electric power controller of portable type electronic product according to claim 5, it is characterized in that: described Enable Pin control module mainly comprises diode D1, current-limiting resistance R3 and divider resistance R2, R7, wherein divider resistance R2, R7 the serial connection potential-divider network one end ground connection, the other end connects key switch PLAY through diode D1, and the dividing point of resistance R 2, R7 serial connection body connects current-limiting resistance R3 output interface A2 by the program control output level in the master chip processing unit; The dividing point of resistance R 2, R7 serial connection body is for enabling the control output end.
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| CN200710027458A CN101043144B (en) | 2007-04-06 | 2007-04-06 | Electrical source managing method of portable electronic products and apparatus thereof |
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| CN200710027458A CN101043144B (en) | 2007-04-06 | 2007-04-06 | Electrical source managing method of portable electronic products and apparatus thereof |
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| CN101043144B CN101043144B (en) | 2010-05-19 |
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| CN101887299B (en) * | 2009-05-15 | 2012-09-19 | 华硕电脑股份有限公司 | Power supply control circuit and control method of computer system |
| CN102778285A (en) * | 2012-07-26 | 2012-11-14 | 奥豪斯仪器（常州）有限公司 | Power source management device of capacitance keyboard of electronic scale |
| CN102854966A (en) * | 2012-08-15 | 2013-01-02 | 天地融科技股份有限公司 | Electronic equipment and power management circuit |
| CN102938557A (en) * | 2012-11-23 | 2013-02-20 | 聚辰半导体(上海)有限公司 | Novel enable control circuit for power management system |
| CN101677475B (en) * | 2008-09-16 | 2013-03-20 | 联想(北京)有限公司 | Power management method, equipment and mobile terminal thereof |
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| CN108469891B (en) * | 2018-03-12 | 2021-07-30 | 厦门市美亚柏科信息股份有限公司 | Startup and shutdown management method of portable device, terminal device and storage medium |
| CN112256120A (en) * | 2020-10-20 | 2021-01-22 | 维沃移动通信有限公司 | Protection circuit and electronic device |
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| CN101043144B (en) | 2010-05-19 |
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