CN101399862A - Switch circuit for mobile phone and mobile phone construction based thereon - Google Patents
Switch circuit for mobile phone and mobile phone construction based thereon Download PDFInfo
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- CN101399862A CN101399862A CNA2008102248307A CN200810224830A CN101399862A CN 101399862 A CN101399862 A CN 101399862A CN A2008102248307 A CNA2008102248307 A CN A2008102248307A CN 200810224830 A CN200810224830 A CN 200810224830A CN 101399862 A CN101399862 A CN 101399862A
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Abstract
The invention provides a mobile phone power on-off circuit which includes a first alternation gate, a second alternation gate, a first power on trigger unit and a second power on trigger unit; a first input pin of the first alternation gate is connected with the first input pin of the second alternation gate; the first power on trigger unit and the second power on trigger unit are connected in the middle; a second input pin of the first alternation gate is connected with a first IO port on an application processor; a third output pin of the first alternation gate is connected with a normally-opened power of a system; the second input pin of the second alternation gate is connected with a second IO port arranged on the application processor; the third output pin is connected with the gate-controlled power of the system; the first IO port and the second IO port are used for locking the power of the system; the first power on trigger unit is used for receiving a real time clock power-on signal or a charging power-on signal; the second power on trigger unit is used for receiving a power on-off keystroke signal. Three DC-DC converters, one LDO and a plurality of simple logical apparatus are used for realizing a plurality of power on-off modes; the mobile phone power on-off circuit is suitable for any mobile phone platforms.
Description
Technical field
The present invention relates to the communication terminal technical field, particularly relate to a kind of handset switch machine circuit and based on the mobile phone framework of this circuit.
Background technology
Along with the progress of communication network technology, mobile phone (or claiming mobile phone) has become one of present modal communication tool.The mobile phone framework comprises power management module, AP (Application Processor, application processor) and wireless communication module, generally, power management module is equivalent to a power supply administration, its from the power plant (battery of mobile phone, voltage VBAT) process the back (exporting different magnitudes of voltage) respectively the needs by each element provide suitable and stable supply power voltage.In the prior art, the power management module of mobile phone is exactly PMU (Power Management Unit, a Power Management Unit) chip.The PMU chip is used to realize that near the AP of system all power supplys switch and voltage adjustment function.At present in the handset switch machine scheme that some main mobile phone scheme suppliers provide, generally all need the PMU chip of own platform-specific.
The PMU chip is integrated usually a plurality of DC-DC transducers (that is, the transducer of different DC power supply values), several LDO (Low Dropout Regulator; low-dropout regulator); charger and protective circuit, LED (Light-emitting Diode, light-emitting diode) driving etc.For mobile phone, the PMU chip is the semiconductor element that the cost proportion is number three behind base band, internal memory.In the prior art, PMU development board may just need hundreds of thousands yuan, so the development cost of PMU chip is than higher.
In addition, the exploitation of PMU chip needs at first to determine clear and definite application client in the prior art, this is because the design of PMU chip lacks versatility, PMU chip of the prior art all at a certain special mobile phone scheme customization, for example is placed on charger outside the PMU owing to the consideration of heat radiation, and for example, being used for LED backlight drives, Gary points out, may exist three kinds of situations not need integrated LED backlight to drive, 1, display screen itself is with regard to integrated LED driving; 2, this display screen is not to adopt LED-backlit, but adopts CCFL (Cold Cathode Fluorescent Lamp, cold cathode fluorescent lamp pipe) backlight; 3, for avoiding PCB (Printed Circuit Board, printed circuit board (PCB)) to walk the problem of long line, LED need be driven as far as possible from display screen closely, PMU chip design personnel can be according to the demand design specialized chip.Though the customization of PMU can increase and decrease certain module or adjust performance parameter according to requirement of client, has high integration and the advantage that is full of individual character, because the PMU chip design needs with special software solidification encapsulation after finishing.So the PMU chip design just can't be changed its setting after finishing, and only is applicable to special cell phone platform.For new mobile phone scheme, for example adopt the mobile phone scheme of AP model VC0818, the technical staff is difficult to find the PMU chip of a belt switch function according to the needs of this mobile phone scheme.As this shows that PMU chip of the prior art has underaction, lack the shortcoming of versatility.
In a word, need the urgent technical problem that solves of those skilled in the art to be exactly: how can design a flexible, the relatively lower handset switch machine circuit that has versatility again of cost that is provided with.
Summary of the invention
Technical problem to be solved by this invention provides the flexible setting that a kind of handset switch machine circuit can be realized the handset switch machine button time, effectively reduces the mobile phone production cost, has versatility again.
In order to address the above problem, the invention discloses a kind of handset switch machine circuit, comprising: first or door, second or door, first power on trigger unit and second power on trigger unit;
Described first or first input pin of door with described second or first input pin of door is connected centre access first power on trigger unit and second power on trigger unit;
Described first or second input pin of door be connected with an IO mouth on being positioned at application processor, the 3rd output pin is connected with system normal switch power supply;
Described second or second input pin of door be connected with the 2nd IO mouth on being positioned at application processor, but the 3rd output pin is connected with the system power cutoff;
A described IO mouth and the 2nd IO mouth are used for the locking system power supply;
Described first power on trigger unit is used to receive real-time clock starting-up signal or charging starting-up signal;
Described second power on trigger unit is used for receiving key machine push button signalling.
Preferably, described first power on trigger unit comprises:
The positioning indicator of modulator-demodulator, diode and analog switch chip, wherein, the input of described diode is connected with described positioning indicator with the 3rd IO mouth on being positioned at application processor, and the output of described diode is connected with described analog switch chip.
Preferably, described first power on trigger unit also links to each other with USB interface, is used to receive USB and inserts starting-up signal.
Preferably, described first or first input pin of door with described second or first input pin also be connected with 1 zero resistance between being connected.
Preferably, described first or the door second input pin and an IO mouth between also insert a resistance R 1, the other end ground connection of described R1; Described second or the door second input pin and the 2nd IO mouth between also insert a resistance R 2, the other end ground connection of described R2.
Preferably, described positioning indicator is memory power supply or the IFX_DET signal of modulator-demodulator or certain GPIO of modulator-demodulator.
Preferably, when certain GPIO that described positioning indicator is a modulator-demodulator, after mobile phone is in open state, draw high described GPIO.
Preferably, when described positioning indicator is memory when power supply, between powering, the input and the described memory of described diode be connected with 1 zero resistance.
Preferably, described analog switch chip has 6 pins, is integrated with a single-pole double-throw switch (SPDT) and a filter capacitor on the described chip.
The present invention also provides a kind of mobile phone framework based on above-mentioned handset switch machine circuit, comprising: but handset switch machine circuit, the normal switch power supply module of system, system's power cutoff module, application processor and wireless communication module; Wherein, described handset switch machine circuit comprises: first or door, second or door, first power on trigger unit and second power on trigger unit;
Described first or first input pin of door with described second or first input pin of door is connected centre access first power on trigger unit and second power on trigger unit;
Described first or second input pin of door be connected with an IO mouth on being positioned at application processor, the 3rd output pin is connected with system normal switch power supply;
Described second or second input pin of door be connected with the 2nd IO mouth on being positioned at application processor, but the 3rd output pin is connected with the system power cutoff; A described IO mouth and the 2nd IO mouth are used for the locking system power supply;
Described first power on trigger unit links to each other with wireless communication module, is used to receive real-time clock starting-up signal or charging starting-up signal; Described second power on trigger unit is used for receiving key machine push button signalling.
Preferably, described application processor comprises:
The button time threshold is provided with module, is used to be provided with the time threshold of switching on and shutting down button;
Start reason judge module is used to inquire about a described IO mouth and described the 2nd IO mouth has been put reason;
The button time judgment module is used to judge whether the button time that is pressed surpasses described time threshold.
Preferably, the normal switch power supply module of described system comprises:
First power supply unit provides 2.8V voltage by the transducer of different DC power supply values;
Second power supply unit provides 1.8V voltage by the transducer of different DC power supply values; The shared control end of described first power supply unit and second power supply unit.
Preferably, but described system power cutoff module comprise:
The 3rd power supply unit provides 3.3V voltage by a low pressure difference linear voltage regulator;
The 4th power supply unit provides 1.2V voltage by the transducer of different DC power supply values; The shared control end of described the 3rd power supply unit and the 4th power supply unit.
Preferably, described first power on trigger unit comprises:
The positioning indicator of modulator-demodulator, diode and analog switch chip, wherein, the input of described diode is connected with described positioning indicator with the 3rd I/O mouth on being positioned at application processor, and the output of described diode is connected with described analog switch chip.
Preferably, described first power on trigger unit also links to each other with USB interface, is used to receive USB and inserts starting-up signal.
Preferably, described positioning indicator is memory power supply or the IFX_DET signal of modulator-demodulator or certain GPIO of modulator-demodulator.
Preferably, described analog switch chip has 6 pins, is integrated with a single-pole double-throw switch (SPDT) and a filter capacitor on the described chip.
Compared with prior art, the present invention has the following advantages:
Use handset switch machine circuit provided by the invention and mobile phone framework, make the mobile phone scheme be no longer dependent on special-purpose PMU chip, only need common discrete power device such as DC-DC transducer, LDO and simple logical device such as diode or door etc. can realize four kinds of start modes: switch key start, RTC (Real-Time Clock, real-time timepiece chip) timing start-up, charging start and USB insert start.
And, handset switch machine circuit provided by the invention and mobile phone framework are formed the cellular phone power supplies management circuit by 3 DC-DC transducers, LDO, 1 analog switch chip and several simple logical device can realize power management to whole mobile phone framework, the device of comparative maturity, so the cost of the simple and reliable entire circuit of circuit is added up less than 10 yuans, compare with PMU chip of the prior art, effectively reduce the production cost of mobile phone.
In addition, the Bootloader (that is, guiding loads) that designs among the AP of handset switch machine circuit provided by the invention and mobile phone framework increases free setting program, and the cellphone subscriber can be provided with switching on and shutting down time, flow process, function etc. flexibly according to the needs of oneself.
Description of drawings
Fig. 1 is the structural representation of a kind of handset switch machine circuit of the present invention;
Fig. 2 is the structural representation of the present invention's first power on trigger unit;
Fig. 3 is the circuit diagram of handset switch machine circuit embodiment of the present invention;
Fig. 4 is the structural representation of mobile phone framework of the present invention;
Fig. 5 is the structural representation of application processor of the present invention;
Fig. 6 is the circuit diagram of the normal switch power supply embodiment of system of the present invention;
But Fig. 7 is the circuit diagram of the power cutoff embodiment of system of the present invention;
Fig. 8 is the flow chart of handset switch machine circuit of the present invention under switching on and shutting down button start mode;
Fig. 9 is the flow chart of handset switch machine circuit of the present invention under RTC or charging start mode;
Figure 10 is the flow chart of handset switch machine circuit of the present invention under USB insertion start mode;
Figure 11 is the shutdown process figure of handset switch machine circuit of the present invention under the button shutdown triggers;
Figure 12 is the shutdown process figure of handset switch machine circuit of the present invention under the interface shutdown triggers.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
With reference to Fig. 1, show the structural representation of a kind of handset switch machine circuit of the present invention, comprising: first or door 11, second or door 12, first power on trigger unit 13 and second power on trigger unit 14.Described first or door 11 first input pin 111 with described second or first input pin 121 of door 12 is connected centre access first power on trigger unit 13 and second power on trigger unit 14.Described first or door 11 second input pin 112 be connected with an IO mouth 201 on being positioned at AP, the 3rd output pin 113 is connected with system normal switch power supply 15.Described second or door 12 second input pin 122 be connected with the 2nd IO mouth 202 on being positioned at AP, but the 3rd output pin 123 is connected with system power cutoff 16.Wherein, a described IO mouth 201 and the 2nd IO mouth 202 are used for the locking system power supply, and described first power on trigger unit 13 is used to receive RTC starting-up signal or charging starting-up signal, and described second power on trigger unit 14 is used for receiving key machine push button signalling.
With reference to Fig. 2, show the structural representation of the present invention's first power on trigger unit, in embodiments of the present invention preferably, first power on trigger unit 13 specifically comprises: the positioning indicator 21 of modem, diode 22 and analog switch chip 23, wherein, the input 221 of described diode 22 is connected with described positioning indicator 21 with the 3rd IO mouth 203 on being positioned at application processor AP, and the output 222 of described diode 22 is connected with described analog switch chip 23.
In conjunction with the Fig. 1 and the simple course of work of describing handset switch machine circuit provided by the invention of Fig. 2 be:
Under the first start trigger mode, wireless communication module is under charging or RTC triggering, in wireless communication module, the index signal saltus step of the positioning indicator 21 of MODEM is a high level, this index signal is by described diode 22, analog switch chip 23, but first or door 11 and second or door draw high the control pin of the normal switch power supply 15 of system and system's power cutoff 16 after 12, this moment, the power supply of system all was opened, program brings into operation after the system reset subsequently, the state of program inquiring the 3rd IO mouth 203, if described the 3rd IO mouth 203 is to place high level, then put a high IO mouth 201 and the 2nd IO mouth 202 locking system power supplys.After system's the one IO mouth 201 is put height, open the single-pole double-throw switch (SPDT) on the analog switch chip 23, purpose is in system's sleep, can put low the 2nd IO mouth 202, but shutoff system power cutoff 16, thus reach purpose of power saving, and then prolong the stand-by time of mobile phone.If described the 3rd IO mouth 203 is to place low level, then shutdown.
Under the second start trigger mode, after pressing handset switch machine button, it is high level that second power on trigger unit 14 receives the saltus step of start triggering signal, but this signal through first or door 11 and second or door draw high the control pin of the normal switch power supply 15 of system and system's power cutoff 16 after 12, this moment, the power supply of system all was opened, program brings into operation after the system reset subsequently, the signal that inquires second power on trigger unit 14 when system program is that time of high level is promptly by time of switch switch during more than or equal to the time threshold set, system can differentiate for long by the switch switch so, put a high IO mouth 201 and the 2nd IO mouth 202 locking system power supplys immediately, at this time the switch switch can discharge.If it is that time of high level is during less than the time threshold set that system program inquires the signal of second power on trigger unit 14, system can differentiate for short by the switch switch so, a high IO mouth 201 and the 2nd IO mouth 202 just can not put by system, after the start key discharged, system will shut down because of power down.
In embodiments of the present invention, preferably, described first power on trigger unit 13 also links to each other with USB interface, is used to receive USB and inserts the starting-up signal of having put.
With reference to Fig. 3, show the circuit diagram of handset switch machine circuit of the present invention.In Fig. 3, the 151st, system is used to the control pin of the normal switch power supply 15 of the system that draws high, and the 161st, but system is used to draw high the control pin of system's power cutoff 16.
In embodiments of the present invention, preferably, described first or door 11 first input pin 111 with also be connected with 1 zero resistance R10 between described second or first input pin 121 of door 12 are connected, the access of described zero resistance R10 is the detection for convenience of signal.
In embodiments of the present invention, preferably, in order to make system more stable, described first or second input pin 112 of door 11 and an IO mouth 201 between also insert a resistance R 1, the other end ground connection of described R1.Described second or door 12 second input pin 122 and the 2nd IO mouth 202 between also insert a resistance R 2, the other end ground connection of described R2.Resistance R 1, R2 play stable level in entire circuit, be used to optimize the signal of whole system.
In embodiments of the present invention, preferably, the positioning indicator 21 of described MODEM can be memory power supply VMEM211 or MODEM IFX_DET signal 212 or certain GPIO of MODEM.The cellphone subscriber can select wherein arbitrary positioning indicator as mobile phone MODEM according to own needs.When it should be noted that certain GPIO of selecting MODEM for use as the cellphone subscriber as the positioning indicator of described MODEM, MODEM software need be done simple process, and promptly mobile phone is drawn high described GPIO after being in open state.When the cellphone subscriber selects memory power supply VMEM211 as the positioning indicator of described MODEM for use, for the ease of detecting, between the input 221 of described diode 22 and described VMEM211, be connected 1 zero resistance R20.When the IFX_DET of MODEM signal 212 was not selected as the indicating device of MODEM, zero resistance R30 did not weld, and when selected indicating device as MODEM, zero resistance R20 mends and receives R30 place, and acting on is for the ease of input equally.
In embodiments of the present invention, preferably, described analog switch chip 23 is one 6 pin chips, is integrated with a single-pole double-throw switch (SPDT) K1 and a filter capacitor C on the described chip.One of them pin is received between 112 and 201, and a pin is received between 111 and 121.After an IO mouth 201 the 2nd IO mouth 202 of system was drawn high the locking system power supply, described analog switch K1 disconnected, but is convenient to application processor AP control system power cutoff 16 like this, according to circumstances enters resting state in real time.
Adopt mobile phone power-on circuit provided by the invention, the present invention also provides a kind of mobile phone framework.With reference to Fig. 4, show the structural representation of mobile phone framework of the present invention, comprising: but handset switch machine circuit, the normal switch power supply 15 of system, system's power cutoff 16, application processor 4 and wireless communication module 5.Wherein, described handset switch machine circuit 1 comprises: first or door 11, second or door 12, first power on trigger unit 13 and second power on trigger unit 14.Described first or door 11 first input pin 111 with described second or first input pin 121 of door 12 is connected centre access first power on trigger unit 13 and second power on trigger unit 14.Described first or door 11 second input pin 112 be connected with an IO mouth 201 on being positioned at AP, the 3rd output pin 113 is connected with system normal switch power supply 15.Described second or door 12 second input pin 122 be connected with the 2nd IO mouth 202 on being positioned at AP, but the 3rd output pin 123 is connected with system power cutoff 16.Wherein, a described IO mouth 201 and the 2nd IO mouth 202 are used for the locking system power supply, described first power on trigger unit 13 is used to receive real-time clock RTC starting-up signal or charging starting-up signal, and described second power on trigger unit 14 is used for receiving key machine push button signalling.AP4 carries out data interaction by downloading communication port UART serial ports or USB mouth and wireless communication module 5, thereby the startup of wireless communication module and the RESET that resets control the download Boot loader code that opens wireless communication module inside by the application processor AP software that downloads.
In embodiments of the present invention, preferably, described first power on trigger unit comprises: the positioning indicator of modulator-demodulator, diode and analog switch chip, wherein, the input of described diode is connected with described positioning indicator with the 3rd I/O mouth on being positioned at AP, and the output of described diode is connected with described analog switch chip.
In embodiments of the present invention, preferably, described first power on trigger unit also links to each other with USB interface, is used to receive USB and inserts starting-up signal.
In embodiments of the present invention, preferably, described positioning indicator is certain GPIO of memory power supply VMEM or MODEM IFX_DET signal or MODEM.
In embodiments of the present invention, preferably, described analog switch chip has 6 pins, is integrated with a single-pole double-throw switch (SPDT) and a filter capacitor on the described chip.
With reference to Fig. 5, show the structural representation of application processor of the present invention, in embodiments of the present invention, preferably, application processor AP comprises:
The button time threshold is provided with module 41, is used to be provided with the time threshold of switching on and shutting down button; The cellie can change the time threshold that handset switch machine needs are judged according to personal habits, such as being set to 1s or 2s etc.Switching on and shutting down reason judge module 42 is used to inquire about a described IO mouth 201 and described the 2nd IO mouth 202 has been put reason; Button time judgment module 43 is used to judge whether the button time that is pressed surpasses described time threshold.
Carry out among the embodiment of button start at above-mentioned application processor AP, described button time threshold is provided with module 41 described time threshold is made as 1s, originally mobile phone is in off-mode, after the user presses the handset switch switch, it is that the button triggering is started shooting that described switching on and shutting down reason judge module 42 is differentiated, system will utilize described button time judgment module 43 to judge that if more than or equal to 1s, then system will carry out start by the length of the time of switch switch; If judged result is less than 1s, then mobile phone is not carried out start.
In embodiments of the present invention, preferably, the normal switch power supply 15 of described system comprises: first power supply unit, it is a DC-DC transducer, be used to server Host, System, LCD (the LiquidCrystal Display of system, LCD), CS (Camera Sensor, camera), VR parts such as (VoltageRegulator, voltage regulators) provide stable 2.8V voltage.Second power supply unit also is a DC-DC transducer, is used to the SDRAM (Synchronous Dynamic RandomAccess Memory, Synchronous Dynamic Random Access Memory) and the NAND of system that needed stable 1.8V voltage is provided.The shared control end 151 of described first power supply unit and second power supply unit.Side circuit as shown in Figure 6, Fig. 6 shows the circuit diagram of the normal switch power supply embodiment of system of the present invention.
In embodiments of the present invention, preferably, but described system power cutoff 16 comprises: the 3rd power supply unit is a LDO, is used to as external equipments such as Audio and TV-Out the 3.3V voltage that needs is provided.The 4th power supply unit is a DC-DC transducer, is used to as external equipments such as Core, PLL (PhaseLocked Logic, synchronised logic), USB required 1.2V voltage is provided.The shared control end 161 of described the 3rd power supply unit and the 4th power supply unit.Side circuit as shown in Figure 7, but Fig. 7 shows the circuit diagram of the power cutoff embodiment of system of the present invention.
By Fig. 6 and Fig. 7 as can be known, the needed supply power voltage of the different parts of whole system can utilize 3 DC-DC transducers and a LDO to provide, and compares with the special MPU chip that cell phone platform of the prior art needs, and has effectively saved the production cost of mobile phone.
In conjunction with the structural representation of the mobile phone framework of the present invention shown in Fig. 4, specifically tell about the workflow of handset switch machine circuit provided by the invention under various power on-off modes below.
Fig. 8 shows the flow chart of handset switch machine circuit of the present invention under switching on and shutting down button start mode, may further comprise the steps:
Step 801 is pressed the switch switch;
Said process is the course of work of mobile phone framework provided by the invention when switch key triggers the mode of start, the i.e. course of work of second power on trigger unit.
Fig. 9 shows the flow chart of handset switch machine circuit of the present invention under real-time clock RTC or charging start mode, may further comprise the steps:
Step 906 is put a high IO mouth 201 and the 2nd IO mouth 202, automatically locks system power supply;
In above-mentioned steps 902, the positioning indicator of described MODEM can be memory power supply VMEM, or the IFX_DET signal of modulator-demodulator, also can be certain GPIO of modulator-demodulator.
Said process is the course of work of mobile phone framework provided by the invention when real-time clock RTC or charger insertion triggering start, the i.e. course of work of first power on trigger unit.
First power on trigger unit comprises that also USB inserts the start mode, with reference to Figure 10, shows the flow chart of handset switch machine circuit of the present invention under USB insertion start mode, comprising:
Above-mentioned three flowchart texts adopt mobile phone framework provided by the invention to carry out the workflow of four kinds of start modes.Correspondingly, following examples are done to introduce the shutdown process of mobile phone framework provided by the invention.
Figure 11 shows the shutdown process figure of handset switch machine circuit of the present invention under the button shutdown triggers, and comprising: step 1101, press the switch switch, and begin shutdown;
Step 1102 detects the button time, compares with the button time threshold that sets in advance, and judges the length of button time, if for long, and execution in step 1104; If for short, then execution in step 1103;
Step 1103, the cancellation shutdown;
Step 1104 is preserved current task and system configuration;
Step 1105 detects the on off state that the 3rd IO mouth is inquired about MODEM, if signal is a high level, and execution in step 1106; If signal is a low level, then execution in step 1107;
Step 1106 is turned off MODEM;
Step 1107 continues to detect the on off state that the 3rd IO mouth is inquired about MODEM, if signal is a high level, then continues execution in step 1106; If signal is a low level, then execution in step 1108;
Step 1108 is put the signal that hangs down system's the one IO mouth and the 2nd IO mouth;
Step 1109, system's power down shutdown.
For adopting the workflow of shutting down from the shutdown interface, similar with above-mentioned workflow, idiographic flow is shown among Figure 12, with reference to Figure 12, shows the shutdown process figure of handset switch machine circuit of the present invention under the interface shutdown triggers, and may further comprise the steps:
Step 1201 enters the shutdown interface, begins shutdown;
Step 1202 is preserved current task and system configuration;
Step 1203 detects the on off state that the 3rd IO mouth is inquired about MODEM, if signal is a high level, and execution in step 1204; If signal is a low level, then execution in step 1206;
Step 1204 is turned off MODEM;
Step 1205 continues to detect the on off state that the 3rd IO mouth is inquired about MODEM, if signal is a high level, then continues execution in step 1204; If signal is a low level, then execution in step 1206;
Step 1206 is put the signal that hangs down system's the one IO mouth and the 2nd IO mouth;
Step 1207, system's power down shutdown.
This shows, handset switch machine circuit provided by the invention and adopt 3 DC-DC transducers of discrete power device and a LDO based on the mobile phone framework of this circuit, and one 6 pin analog switch chip and several simple logic device such as diode or door can be realized the power management of mobile phone, handset switch machine circuit provided by the invention can be widely applied in any handset switch machine scheme, has good versatility.Because the making of these power supply apparatus comparative maturity all, so circuit is simple and reliable, and used device is all less expensive, compares with the special-purpose PMU chip of using in the prior art again, greatly less production cost, and then reduced the manufacturing cost of mobile phone.
In addition, because mobile phone framework provided by the invention has increased button time threshold setting module and related key time judgment module, have time set and arbitration functions, the cellie can be provided with the time according to actual needs flexibly, so mobile phone framework provided by the invention more is tending towards hommization.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For system embodiment, because it is similar substantially to method embodiment, so description is fairly simple, relevant part gets final product referring to the part explanation of method embodiment.
More than to a kind of handset switch machine circuit provided by the present invention and based on the mobile phone framework of this circuit, be described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (17)
1, a kind of handset switch machine circuit is characterized in that, comprising: first or door, second or door, first power on trigger unit and second power on trigger unit;
Described first or first input pin of door with described second or first input pin of door is connected centre access first power on trigger unit and second power on trigger unit;
Described first or second input pin of door be connected with an IO mouth on being positioned at application processor, the 3rd output pin is connected with system normal switch power supply;
Described second or second input pin of door be connected with the 2nd IO mouth on being positioned at application processor, but the 3rd output pin is connected with the system power cutoff;
A described IO mouth and the 2nd IO mouth are used for the locking system power supply;
Described first power on trigger unit is used to receive real-time clock starting-up signal or charging starting-up signal;
Described second power on trigger unit is used for receiving key machine push button signalling.
2, handset switch machine circuit according to claim 1 is characterized in that, described first power on trigger unit comprises:
The positioning indicator of modulator-demodulator, diode and analog switch chip, wherein, the input of described diode is connected with described positioning indicator with the 3rd IO mouth on being positioned at application processor, and the output of described diode is connected with described analog switch chip.
3, handset switch machine circuit according to claim 1 is characterized in that, described first power on trigger unit also links to each other with USB interface, is used to receive USB and inserts starting-up signal.
4, handset switch machine circuit according to claim 1 is characterized in that, described first or first input pin of door with described second or first input pin also be connected with 1 zero resistance between being connected.
5, handset switch machine circuit according to claim 1 is characterized in that,
Described first or the door second input pin and an IO mouth between also insert a resistance R 1, the other end ground connection of described R1;
Described second or the door second input pin and the 2nd IO mouth between also insert a resistance R 2, the other end ground connection of described R2.
6, handset switch machine circuit according to claim 1 is characterized in that, described positioning indicator is memory power supply or the IFX_DET signal of modulator-demodulator or certain GPIO of modulator-demodulator.
7, handset switch machine circuit according to claim 6 is characterized in that, when certain GPIO that described positioning indicator is a modulator-demodulator, after mobile phone is in open state, draws high described GPIO.
8, handset switch machine circuit according to claim 6 is characterized in that, when described positioning indicator is memory when power supply, is connected with 1 zero resistance between the input and the described memory of described diode are powered.
9, handset switch machine circuit according to claim 2 is characterized in that, described analog switch chip has 6 pins, is integrated with a single-pole double-throw switch (SPDT) and a filter capacitor on the described chip.
10, a kind of mobile phone framework that adopts described on/off circuit is characterized in that, comprising: but handset switch machine circuit, the normal switch power supply module of system, system's power cutoff module, application processor and wireless communication module; Wherein,
Described handset switch machine circuit comprises: first or door, second or door, first power on trigger unit and second power on trigger unit;
Described first or first input pin of door with described second or first input pin of door is connected centre access first power on trigger unit and second power on trigger unit;
Described first or second input pin of door be connected with an IO mouth on being positioned at application processor, the 3rd output pin is connected with system normal switch power supply;
Described second or second input pin of door be connected with the 2nd IO mouth on being positioned at application processor, but the 3rd output pin is connected with the system power cutoff; A described IO mouth and the 2nd IO mouth are used for the locking system power supply;
Described first power on trigger unit links to each other with wireless communication module, is used to receive real-time clock starting-up signal or charging starting-up signal;
Described second power on trigger unit is used for receiving key machine push button signalling.
11, mobile phone framework according to claim 10 is characterized in that, described application processor comprises:
The button time threshold is provided with module, is used to be provided with the time threshold of switching on and shutting down button;
Start reason judge module is used to inquire about a described IO mouth and described the 2nd IO mouth has been put reason;
The button time judgment module is used to judge whether the button time that is pressed surpasses described time threshold.
12, mobile phone framework according to claim 10 is characterized in that, the normal switch power supply module of described system comprises:
First power supply unit provides 2.8V voltage by the transducer of different DC power supply values;
Second power supply unit provides 1.8V voltage by the transducer of different DC power supply values;
The shared control end of described first power supply unit and second power supply unit.
13, mobile phone framework according to claim 10 is characterized in that, but described system power cutoff module comprises:
The 3rd power supply unit provides 3.3V voltage by a low pressure difference linear voltage regulator;
The 4th power supply unit provides 1.2V voltage by the transducer of different DC power supply values;
The shared control end of described the 3rd power supply unit and the 4th power supply unit.
14, handset switch machine circuit according to claim 10 is characterized in that, described first power on trigger unit comprises:
The positioning indicator of modulator-demodulator, diode and analog switch chip, wherein, the input of described diode is connected with described positioning indicator with the 3rd I/O mouth on being positioned at application processor, and the output of described diode is connected with described analog switch chip.
15, handset switch machine circuit according to claim 14 is characterized in that, described first power on trigger unit also links to each other with USB interface, is used to receive USB and inserts starting-up signal.
16, handset switch machine circuit according to claim 14 is characterized in that, described positioning indicator is memory power supply or the IFX_DET signal of modulator-demodulator or certain GPIO of modulator-demodulator.
17, handset switch machine circuit according to claim 14 is characterized in that, described analog switch chip has 6 pins, is integrated with a single-pole double-throw switch (SPDT) and a filter capacitor on the described chip.
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| CN200810224830.7A CN101399862B (en) | 2008-10-23 | 2008-10-23 | Switch circuit for mobile phone and mobile phone construction based thereon |
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| CN200810224830.7A CN101399862B (en) | 2008-10-23 | 2008-10-23 | Switch circuit for mobile phone and mobile phone construction based thereon |
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| CN101399862B CN101399862B (en) | 2014-10-29 |
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| CN101951625A (en) * | 2010-09-30 | 2011-01-19 | 成都三零瑞通移动通信有限公司 | Mobile phone on and off security detection and control device and method |
| CN102111507A (en) * | 2011-03-21 | 2011-06-29 | 惠州Tcl移动通信有限公司 | Mobile phone |
| CN102331834A (en) * | 2011-09-06 | 2012-01-25 | 中兴通讯股份有限公司 | Method for controlling startup of mobile terminal and mobile terminal |
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| CN103592861A (en) * | 2013-11-06 | 2014-02-19 | 福建三元达软件有限公司 | Multifunctional single switch power source management system |
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| CN104062915B (en) * | 2014-06-04 | 2016-11-30 | 广州中海达卫星导航技术股份有限公司 | A kind of GNSS receiver on-off control method |
| CN104062915A (en) * | 2014-06-04 | 2014-09-24 | 广州中海达卫星导航技术股份有限公司 | On-off control method for GNSS (Global Navigation Satellite System) receiver |
| WO2016061771A1 (en) * | 2014-10-22 | 2016-04-28 | 华为技术有限公司 | Power-on circuit and electronic device |
| CN104640373A (en) * | 2015-01-30 | 2015-05-20 | 广东欧珀移动通信有限公司 | Compatible encapsulating method and encapsulating entity for USB (Universal Serial Bus) analog switch and zero-ohm resistors |
| CN104640373B (en) * | 2015-01-30 | 2017-08-25 | 广东欧珀移动通信有限公司 | The USB analog switches method for packing compatible with 0 Europe resistance and package implementation |
| CN105204601A (en) * | 2015-09-16 | 2015-12-30 | 江苏辰汉电子科技有限公司 | System automatic power-on circuit and method |
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| WO2020215970A1 (en) * | 2019-04-25 | 2020-10-29 | 维沃移动通信有限公司 | Power control apparatus and method, and terminal device |
| CN111613041A (en) * | 2020-06-11 | 2020-09-01 | 南京千云井建筑智能科技有限公司 | Control system for realizing startup and shutdown through NFC or charging signal |
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Effective date of registration: 20151215 Address after: 519031 Guangdong city of Zhuhai province Hengqin Baohua Road No. 6, room 105 -478 Patentee after: GUANGDONG ZHONGXING ELECTRONICS CO., LTD. Address before: 100083 Haidian District, Xueyuan Road, No. 35, the world building, the second floor of the building on the ground floor, No. 16 Patentee before: Beijing Vimicro Corporation |