CN101232667A - Battery sensing device of individual mobile terminal computer - Google Patents
Battery sensing device of individual mobile terminal computer Download PDFInfo
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- CN101232667A CN101232667A CNA2007100198845A CN200710019884A CN101232667A CN 101232667 A CN101232667 A CN 101232667A CN A2007100198845 A CNA2007100198845 A CN A2007100198845A CN 200710019884 A CN200710019884 A CN 200710019884A CN 101232667 A CN101232667 A CN 101232667A
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Abstract
The invention relates to a battery induction device of a PERSONAL DIGITAL ASSISTANT, in particular to that instead of arranging an extra terminal for inducing the handling of the battery on a personal digital assistant, a TTA standard terminal---a battery identification code (ID) terminal is used for inducing the handling state of the battery so as to change the mode of power supply and protect a battery induction device of an inner memory of the personal digital assistant. The invention comprises the following parts: a power supply device, supplying the stated voltage to a terminal set for inducing the handling of the battery; a terminal voltage detection device, detecting the voltage level of the battery handling induction terminal; a CPU, judging the handling state of the battery according to the voltage of the battery handling induction terminal detected by the terminal voltage detection device.
Description
Technical field
This invention relates to a kind of battery sensing device of individual mobile terminal computer; relating in particular to a kind of is not the extra terminal that is provided for the induced cell loading and unloading on individual mobile terminal computer; but utilize TTA standard terminal--battery identification sign indicating number (ID) terminal; come induced cell loading and unloading state; thereby can change powering mode, the battery sensing device of protection individual mobile terminal computer built-in storage.
Background technology
Usually, the memory device of individual mobile terminal computer is by nonvolatile memory, and----flash memory and volatile memory--SDRAM constitutes, and extra External memory equipments such as SD memory and CF memory can also be set sometimes.At this moment, be example with SDRAM, because it is a volatile memory,, thereby must often keep power supply so when powered-down, data also can be lost together.
So, when the main battery of individual mobile terminal computer breaks away from, at once it is detected, provide power supply by standby (backup) battery to memory, prevent loss of data with this.For this reason, additionally be provided with the circuit that is used to detect main battery loading and unloading state on the above-mentioned individual mobile terminal computer.
But Fig. 1 is the formation block diagram of the individual mobile terminal computer of induced cell loading and unloading in the prior art.As shown in Figure 1, in addition, also comprise battery induction terminal except comprising identification code (ID) terminal, battery communication terminal, power supply terminal (+,-) on the battery 200.Individual mobile terminal computer detects the battery situation of the loading and unloading by above-mentioned battery induction terminal.
Here, above-mentioned battery identification sign indicating number terminal is positioned at the 1st pin of 24 pins (pin) connectors (connector) of mobile communication terminal, and being used to detect is the terminal of high capacity cell or small-capacity cells, and it is connected with charger 300, is used to determine charge capacity.Above-mentioned battery communication terminal is the terminal that will output to by the battery dump energy that battery electric quantity indication IC 201 measures on the terminating machine, and above-mentioned battery induction terminal is the direct terminal that detects battery loading and unloading state on terminating machine.
But, exploitation along with the individual mobile terminal computer (as: PDA phone) of nearest built-in communication module, its use always with existing mobile communication terminal on identical, the connector of ICT (information and communication technology) association (TTA:Telecommunication Technology Association) standard, thus make the individual mobile terminal computer of built-in communication module problem take place at the induced cell disconnectable connection.
Promptly, with mobile communication terminal in the prior art is example, owing to do not use volatile memory, so do not need the loading and unloading of induced cell, but with the individual mobile terminal computer in conjunction with communication function is example, owing to use volatile memory, institute thinks and prevents loss of data, main battery and extra reserve battery must be installed, and be example with the PDA phone that uses the TTA AN connector that does not have battery induction terminal, though need the conversion between main battery and reserve battery, because of not being provided for the terminal of induced cell loading and unloading, so can produce mistake.
Summary of the invention
Therefore; the present invention proposes for addressing the above problem just; one of purpose is to provide the battery sensing device of following individual mobile terminal computer; that is: on individual mobile terminal computer, be not provided for the extra terminal of induced cell loading and unloading; and use according to----battery identification sign indicating number (ID) terminal in the pin (pin) of ICT (information and communication technology) association (TTA) standard definition; come induced cell loading and unloading state by the inner set ball bearing made using of terminating machine; thereby can change powering mode, the battery sensing device of protection individual mobile terminal computer built-in storage.
Two of the purpose of this invention is to provide following battery sensing device, that is: make the individual mobile terminal computer of built-in communication module can use the defined battery ID terminal of TTA induced cell loading and unloading state, thereby can reduce the quantity of battery terminal, and can with the mobile communication terminal common connector, and then can reduce the battery sensing device of expense.
For achieving the above object, this invention is characterised in that, comprises following part: the power supplier that the voltage of regulation is offered the terminal of setting into the induced cell loading and unloading; The terminal voltage checkout gear that the voltage level that terminal is responded in above-mentioned battery loading and unloading detects; The voltage of terminal is responded in the battery loading and unloading that reception is detected by above-mentioned terminal voltage checkout gear, to judge the CPU of battery loading and unloading state.
The battery sensing device of above-described individual mobile terminal computer of the present invention, one of its effect is: be not the extra terminal that is provided for the induced cell loading and unloading on individual mobile terminal computer, and be to use identification code (ID) terminal of battery, just can induced cell loading and unloading state.
Two of the effect of this invention is: can be in individual mobile terminal computer with the battery identification sign indicating number terminal of TTA standard definition shared be battery induction terminal, thereby can reduce the quantity of battery terminal, and can with the mobile communication terminal common connector, thereby can cost saving.
Description of drawings
But Fig. 1 is the formation block diagram of the individual mobile terminal computer of induced cell loading and unloading in the prior art;
Fig. 2 is the formation block diagram that is provided with the individual mobile terminal computer of battery sensing device of the present invention.
The description of symbols of major part in the accompanying drawing
100: individual mobile terminal computer 101:CPU
102: buffer portion 200: battery
201: battery electric quantity indication (guaging) IC 300: charger
301: charger control part R1～R4: resistance
Embodiment
The present invention relates to a kind of individual mobile terminal computer with communication function, its purpose is to provide following a kind of battery sensing device, even that is: be not provided for the extra pin of induced cell loading and unloading, utilize----battery ID terminal in 24 pins of the defined standard specification of TTA, also the battery sensing device of the state of the kind (high capacity cell or small-capacity cells) of induced cell and even battery loading and unloading simultaneously.
Below with reference to accompanying drawings to a preferred embodiment of the present invention will be described in detail.
Fig. 2 is the formation block diagram that is provided with the individual mobile terminal computer of battery sensing device of the present invention.As shown in Figure 2, battery 200 is provided with identification code (ID) terminal, communication terminal, power supply terminal (+,-), and different with the past is that it does not contain battery induction terminal.
Therefore, the past is detected battery loading and unloading state by battery induction terminal, and the present invention must utilize other method to detect battery loading and unloading state.For this reason, the invention provides the loading and unloading state that a kind of device of applying flexibly battery identification sign indicating number (ID) terminal is used for induced cell.
Promptly, as shown in Figure 2, individual mobile terminal computer comprises battery sensing device, and this battery sensing device comprises following part: the resistance R 2 that is used for providing to the connected node (nodel) of the identification code detection terminal of identification code (ID) terminal that connects battery and charger 300 power source voltage Vcc; Be used to detect the resistance R 3 of the voltage on the above-mentioned connected node (nodel); Voltage on the connected node (nodel) that is used for above-mentioned resistance R 3 is detected offers the buffer part 102 of CPU 101.
As a reference be that the identification code of above-mentioned battery 200 (ID) terminal is internally connected with the resistance R 1 on a side joint ground.
Therefore, when uneasy packed battery, connected node (Nodel) is owing to provide power source voltage Vcc by resistance R 2, and institute thinks high level H, therefore the signal 1 by buffer part 102 input CPU 101 ' level H also very high.
Above-mentioned receive high level H ' signal 1 ' CPU 101 judge that thus main battery is laid down, thereby the power supply that will offer terminating machine is changed into reserve battery from main battery 200, and powering mode is converted to slip pattern (energy-saving mode).
On the contrary, when battery is installed, connected node (nodel) is owing to provide resistance R 1 ground connection of the identification code terminal of power source voltage Vcc by being connected battery by resistance R 2, and institute thinks low level (L), therefore by buffer part 102 input CPU 101 ' signal 1 ' level L also very low.
Receive above-mentioned low level (L) ' signal 1 ' CPU 101 judge thus main battery be installed, thereby the power supply that will offer terminating machine is changed into main battery 200 once more from reserve battery, and converts powering mode to normal mode.
The effect of above-mentioned buffer part 102 is: the noise that produces when eliminating battery 200 loading and unloading, avoid being mistaken as input signal.
In above-mentioned Fig. 2, ' signal 2 ' be connected to individual mobile terminal computer from battery electric quantity indication IC 201 passes to CPU 101 with the electric weight of battery, is used to show the electric weight of remaining battery.
In addition, the resistance R 1 that is connected on the identification code terminal of above-mentioned battery 200 is meant the resistance of setting by the TTA specification, battery 200 is being installed in when charging on the terminating machine, resistance R 1 is connected in series with the resistance R 4 of charger 300, according to the voltage that is allocated in resistance R 1, R4, charger control part 301 detects the electric weight (big capacity or low capacity) of battery, can arbitrarily not change.
Therefore, in order not influence the basic operation that detects battery electric quantity by above-mentioned resistance R 1, the resistance R 2 of the battery sensing device in the above-mentioned individual mobile terminal computer, R3 must be according to suitable the selecting of resistance R 4 values of the resistance R 1 of the identification code terminal of battery and the charger that is connected with this identification code terminal.
Have only and set to such an extent that the value of the resistance R 1 that connected on the identification code terminal than battery 200 is bigger when above-mentioned resistance R 2, R3, the resistance R 1 that connects above-mentioned identification code terminal could be according to standard operation.That is, this is because when the resistance R 2 of battery sensing device, when R3 is very low, must can import CPU 101 by the electric current of resistance R 1 ground connection.
Above with reference to the accompanying drawing preferred embodiments of the present invention have been disclosed for illustrative, here, this specification and the employed term of right application range or word should not be construed as the meaning that is defined in common or the dictionary, and are interpreted as meeting the meaning and the notion of the technology of the present invention thought.
Therefore, structure represented in embodiment that this specification is put down in writing and the accompanying drawing is nothing but the most preferred embodiment of the present invention, do not represent whole technological thought of the present invention,, the various similar example and the modification that can substitute them can be arranged so be construed as based on this starting point.
Claims (6)
1. the battery sensing device of an individual mobile terminal computer is characterized in that: comprise with the lower part:
The voltage of regulation is offered the power supplier of the terminal of setting into the induced cell loading and unloading;
The terminal voltage checkout gear that the voltage level that terminal is responded in above-mentioned battery loading and unloading detects;
The voltage of terminal is responded in the battery loading and unloading that reception is detected by above-mentioned terminal voltage checkout gear, to judge the CPU of battery loading and unloading state.
2. the battery sensing device of individual mobile terminal computer as claimed in claim 1 is characterized in that: the battery identification sign indicating number input terminal that the use of above-mentioned battery loading and unloading induction terminal defines according to the TTA standard specification.
3. the battery sensing device of individual mobile terminal computer as claimed in claim 1 or 2 is characterized in that: above-mentioned power supply supply arrangement is received supply voltage by a side joint, and the resistance that opposite side connects above-mentioned battery identification sign indicating number input terminal constitutes.
4. the battery sensing device of individual mobile terminal computer as claimed in claim 1 or 2, it is characterized in that: above-mentioned terminal voltage checkout equipment connects above-mentioned battery identification sign indicating number input terminal by a side, and the resistance that opposite side connects the prescribed port of CPU constitutes.
5. the battery sensing device of individual mobile terminal computer as claimed in claim 4 is characterized in that: above-mentioned resistance is the bigger resistance of resistance value that resistance value connects than inside battery identification code terminal.
6. the battery sensing device of individual mobile terminal computer as claimed in claim 4 is characterized in that: it also is provided with the buffer part of the noise that is produced when being used to eliminate loading and unloading battery between above-mentioned terminal voltage checkout equipment and the CPU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100198845A CN101232667A (en) | 2007-01-25 | 2007-01-25 | Battery sensing device of individual mobile terminal computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100198845A CN101232667A (en) | 2007-01-25 | 2007-01-25 | Battery sensing device of individual mobile terminal computer |
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| Publication Number | Publication Date |
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| CN101232667A true CN101232667A (en) | 2008-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2007100198845A Pending CN101232667A (en) | 2007-01-25 | 2007-01-25 | Battery sensing device of individual mobile terminal computer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102540102A (en) * | 2012-03-12 | 2012-07-04 | 成都林海电子有限责任公司 | Method and system for detecting battery electric quantity of terminal machine |
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2007
- 2007-01-25 CN CNA2007100198845A patent/CN101232667A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102540102A (en) * | 2012-03-12 | 2012-07-04 | 成都林海电子有限责任公司 | Method and system for detecting battery electric quantity of terminal machine |
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Open date: 20080730 |