CN102455771B - Handheld computer system - Google Patents
Handheld computer system Download PDFInfo
- Publication number
- CN102455771B CN102455771B CN201010525725.4A CN201010525725A CN102455771B CN 102455771 B CN102455771 B CN 102455771B CN 201010525725 A CN201010525725 A CN 201010525725A CN 102455771 B CN102455771 B CN 102455771B
- Authority
- CN
- China
- Prior art keywords
- signal
- electric signal
- battery
- hand
- user
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Power Sources (AREA)
Abstract
The invention discloses a handheld computer system which comprises a battery, a power switch and a computer unit, wherein the battery supplies a power supply signal; the power switch receives the power supply signal; the computer unit comprises an embedded controller (EC), a driving circuit and a user interface device; the EC judges whether the battery is in accordance with an electric quantity insufficient condition according to the power supply signal, and if so, the EC supplies a driving power supply signal; the driving circuit judges whether the power supply signal is in accordance with a low voltage condition according to the driving power supply signal, and if so, the driving circuit triggers a warning event; the user interface device triggers a user event according to the warning event; and the power switch responds to an operation event to be turned on or turned off so as to respectively supply power to the computer unit according to the power supply signal and control the computer unit to be in a power-off state.
Description
Technical field
The present invention relates to a kind of hand hand computer system, particularly relate to a kind of hand hand computer system with power switch.
Background technology
In the epoch now of making rapid progress in development in science and technology, it has been the enterprise operation trend of main flow that application hand hand computer system carrys out processing transactions.In general, in hand hand computer system, dispose battery circuit, so can be in the application scenario that cannot utilize civil power (Wall Outlet) as power supply, as the power supply of handheld computer.In the prior art, the battery circuit in hand hand computer system can be divided into in-building type (Recognized) or be alternate form (Listed).
In the prior art, hand hand computer system is for example, by system software (being to have the demonstration that is relevant to battery electric quantity in system program (Operation System)), and the dump energy information of battery is provided.But, how to design for hand hand computer system the battery electric quantity informing mechanism that has more convenience, the dump energy information of notifying more efficiently by this user to know battery circuit, one of direction of constantly endeavouring for industry.
Summary of the invention
The invention relates to a kind of hand hand computer system, be applied to hand hand computer system compared to tradition, the hand hand computer system that the present invention is relevant has advantages of the dump energy information that can show expediently its battery circuit.
According to a first aspect of the invention, propose a kind of hand hand computer system, comprise battery, power switch and computer unit.Battery provides for electric signal.Power switch is electrically connected to battery, to receive for electric signal.Computer unit comprises embedded controller (Embedded Controller, EC), driving circuit and User's Interface device.EC is in response to judging that for electric signal whether battery meets the not enough condition of an electric weight, drives for electric signal if provide.Driving circuit is according to driving for electric signal to judge for telecommunication to lose whether meet the first low-voltage condition, if trigger the first warning event being relevant to for the level of electric signal.User's Interface device is in response to first warning Event triggered first user's event.Power switch is also conducting in response to the first Action Events, to provide for electric signal, computer unit is powered; And in response to the second Action Events for closing so that battery and computer unit are suspension joint (Floating) in fact, control by this computer unit in off-position.Wherein this driving circuit comprises: a signal converter, produces a current conversion signal in response to this driving for electric signal; One Wheatstone bridge, in order to provide one first to control voltage signal and one second control voltage signal, this Wheatstone bridge also in response to this current conversion signal determine this first and this second difference voltage signal of controlling between voltage signal, the size of this difference voltage signal is relevant with this driving confession electric signal; An and comparator circuit, judge whether this difference voltage signal is greater than in fact a critical numerical value, to judge whether this confession electric signal meets this first low-voltage condition, in the time that this confession electric signal meets this first low-voltage condition, this comparator circuit provides one first to control signal to trigger this first warning event.
For there is to better understanding above-mentioned and other aspect of the present invention, preferred embodiment cited below particularly, and be described with reference to the accompanying drawings as follows.
Accompanying drawing explanation
Fig. 1 shows the calcspar of the hand hand computer system of the application embodiment of the present invention.
Fig. 2 shows the detailed block diagram according to the power switch of the embodiment of the present invention.
Fig. 3 shows the detailed block diagram according to the driving circuit of the embodiment of the present invention.
Fig. 4 shows another detailed block diagram according to the driving circuit of the embodiment of the present invention.
Reference numeral explanation
1: hand hand computer system
10: battery
20: power switch
30: computer unit
32: embedded controller
34,34 ': Ma Qu moves circuit
36,36 ': User's Interface device
34a: signal converter
34b: Wheatstone bridge
34c, 34c ': comparer
R1-R10: resistance
OP1: operational amplifier
Ni, N1, N2: node
C1, C1 ', C2: comparer
LD1, LD1 ', LD2: light emitting diode
Spx: for electric signal
Spx: drive for electric signal
Ev: Action Events
Embodiment
Please refer to Fig. 1, it shows the calcspar of the hand hand computer system of the application embodiment of the present invention.Hand hand computer system 1 comprises battery 10, power switch 20 and computer unit 30.Battery 10 is electrically connected via power switch 20 with computer unit 30.Battery 10 is in order to provide for electric signal sp.
In the time that driving circuit 34 receives driving for electric signal spx, represent that battery 10 meets the not enough condition of this electric weight.Putting before this, driving circuit 34, according to driving for electric signal spx, judges for electric signal sp whether meet the first low-voltage condition.For instance, this first low-voltage condition is in fact lower than the condition of the first lower limit critical voltage value for the voltage level of electric signal sp.In the time meeting this first low-voltage condition for electric signal sp, driving circuit 34 triggers the first warning event; User's Interface device 36, in response to this first warning event, triggers first user's event, to notify user's battery 10 state in electric weight deficiency in fact.Next for an embodiment, the detailed operation that is user's interface arrangement 36 to the driving circuit 34 of the present embodiment is further detailed.
Please refer to Fig. 3, it shows the detailed block diagram according to the driving circuit 34 of the embodiment of the present invention.For instance, driving circuit 34 comprises signal converter 34a, Wheatstone bridge (Wheatstone Bridge) 34b and comparator circuit 34c, as shown in Figure 3.Signal converter 34a is in response to driving for electric signal spx generation current conversion signal Ix.For instance, signal converter 34a comprises operational amplifier OP1, resistance R 1, R2, R3, R4 and the R5 of negative feedback bias voltage configuration.In the time that driving has higher voltage level for electric signal spx, the current conversion signal Ix that signal converter 34a provides has lower current value; In the time that driving has lower voltage level for electric signal spx, the current conversion signal Ix that signal converter 34a provides has higher current value.
In more detail, control voltage signal Va, Vb and difference voltage signal Vx and meet respectively equation:
In one embodiment, resistance R 6 to R10 meets value conditions:
R7×R8=R6×(R9+R10)
R9>>R10
R7+R9>>R10
By in the equation of aforementioned aforementioned condition substitution difference voltage signal Vx, can be derived from difference voltage signal Vx and meet equation:
Vx=Va-Vb=Ix×R10
In other words, difference voltage signal Vx equals in fact the current conversion signal Ix cross-pressure that resistance R 10 forms of flowing through.When not receiving, signal converter 34a drives for electric signal spx and in the null in fact situation of current conversion signal Ix accordingly, Wheatstone bridge 34b is in balance of voltage state, reference voltage signal Va has identical in fact voltage level with Vb accordingly, and difference voltage signal Vx equals zero.
When receiving, signal converter 34a drives in the situation that is greater than zero for electric signal spx and current conversion signal Ix, reference voltage signal Va has different voltage levels from Vb, and difference voltage signal Vx equals in fact the current conversion signal Ix cross-pressure that resistance R 10 forms of flowing through.Accordingly, along with having lower level for electric signal sp and driving because battery 10 discharges for electric signal spx, current conversion signal Ix has higher current value accordingly, and difference ground presses signal Vx also to have accordingly higher magnitude of voltage.
User's Interface device 36 comprises light emitting diode LD1, and its control signal sd1 according to activation is conducting, to produce accordingly warning light signal, triggers by this this first warning event, notifies user's battery 10 state in electric weight deficiency in fact.Accordingly, driving circuit 34 can judge for electric signal sp whether meet the first low-voltage condition, and in the time meeting this first low-voltage condition for electric signal sp, controls User's Interface device 36 and trigger this first warning event.
In the present embodiment, though only comprise comparator C 1 with comparator circuit 34c, with via judging whether difference voltage signal Vx is greater than in fact critical numerical value Vr1, to judge that the situation that whether meets this first low-voltage condition (being judge that whether the level of confession electric signal sp is in fact lower than this first lower limit critical value) for electric signal sp explains as example, the comparator circuit 34c of the present embodiment is not limited to this.
In other examples, comparator circuit 34c ' also can comprise two comparator C 1 ' and C2 simultaneously, wherein comparator C 2 judges whether difference voltage signal Vx is greater than in fact critical numerical value Vr2, judge by this for electric signal sp and whether meet the second low-voltage condition, and control signal sd2 is provided accordingly, as shown in Figure 4.For instance, whether this second low-voltage condition is to supply the level of electric signal sp in fact lower than the condition of the second lower limit critical value, and wherein this second lower limit critical value is for example less than aforementioned the first lower limit critical value.So, in the situation that battery 32 meets the not enough condition of this electric weight, driving circuit 34 can be in the time meeting this first low-voltage condition for electric signal sp, provide the control signal Sd1 ' of activation to trigger aforementioned the first warning event, and in the time meeting this second low-voltage condition for electric signal sp, provide the control signal sd1 ' of activation and sd2 to trigger one second warning event.
In this example, User's Interface device 36 ' comprise light emitting diode LD1 ' and LD2, it is conducting according to the control signal sd1 ' of activation and sd2 respectively, to produce accordingly warning light signal, trigger by this this second warning event, notify user's battery 10 ' state in electric weight deficiency in fact.
In the present embodiment, though only with user's interface arrangement 36 light emitting diode LD1, explain as example to produce situation that warning light signal triggers this first warning event, the User's Interface device 36 of the present embodiment is not limited to this.In other examples, driving circuit 34 also can be the voice drive circuit that is integrated with acoustic coding demoder (Coder Decoder) and sound source amplifier (Audio Amplifier), and in User's Interface device 36, be loudspeaker, and User's Interface device 36 triggers this first warning event via producing warning sound signal.
Previous embodiment explanation power switch 20 is conducting in response to Action Events Ev, and battery 10 produces while being provided accordingly to computer unit 30 for electric signal sp, the associative operation of the hand hand computer system 1 of the embodiment of the present invention.Relatively, the Action Events Ev triggering in response to user at power switch 20 is in the operational instances of closing, battery 10 and computer unit 30 are closed as suspension joint (Floating) in fact because of power switch 20, and computer unit 30 is accordingly in off-position accordingly.
In general; in battery 10, be provided with control chip; with in the time that the operational scenario that or excess Temperature too high such as overtension, electric current etc. occur occurs; the charge or discharge operation of forced termination battery 10, reaches by this battery 10 is carried out to overvoltage protection (Over Voltage Protection), overcurrent protection (Over Current Protection) and over-temperature protection (Over Temperature Protection).Once the charge or discharge of control chip forced termination battery 10 operations, often needs user again to plug the operation of (Re-plug), so that battery 10 is reset.But for the hand hand computer system 1 of the present embodiment, it is provided with the power switch 20 that optionally cuts off the supply path between battery 10 and computer unit 30.So, user also can be via Switching power switch 20, reaches the battery replacement operation identical in fact with again plugging battery 10.Accordingly, compared to conventional handheld computer system, the hand hand computer system of the embodiment of the present invention has advantages of can promote the reset convenience of battery of user.
For instance, in the hand hand computer system of the present embodiment, there is real-time clock (Real Time Clock) circuit, produce circuit and real-time clock supplying cell comprising real-time clock.Real-time clock produces circuit optionally for example, by the system power supply of hand hand computer system (by battery 10 or provided by power supply unit) and powered by real-time clock supplying cell.In the time that system power supply is not provided to hand hand computer system, the electric power signal that real-time clock produces circuit to be provided according to real-time clock supplying cell is proceeded relevant clock count operation, so that corresponding system time information to be provided.In the time that hand hand computer system is supplied with system power supply, real-time clock generation circuit carries out relevant clock count according to system power supply provides operation.
In addition, the hand hand computer system of the present embodiment comprises EC, driving circuit and User's Interface device, wherein EC judges according to the electric signal that supplies of battery whether battery meets the not enough condition of electric weight, and provides and equal in fact this driving for electric signal for electric signal in the time that battery meets electric weight deficiency condition; If so, and trigger the first warning event-driven User's Interface device and trigger warning event driving circuit drives for electric signal and judges that whether this meet the first low-voltage condition for electric signal according to this.In other words, the hand hand computer system of the present embodiment can directly be realized battery low-electricity quantity warning circuit with hardware.Accordingly, be applied to hand hand computer system compared to tradition, the hand hand computer system of the present embodiment has advantages of the dump energy information that can show expediently its battery circuit.
In sum, although the present invention discloses as above with preferred embodiment, so it is not in order to limit the present invention.Those skilled in the art, under the premise without departing from the spirit and scope of the present invention, can be used for a variety of modifications and variations.Therefore, protection scope of the present invention is as the criterion with claim of the present invention.
Claims (6)
1. a hand hand computer system, comprising:
One battery, in order to provide one for electric signal;
One power switch, is electrically connected to this battery, to receive this confession electric signal; And
One computer unit, comprising:
One embedded controller, judges in response to this confession electric signal whether this battery meets the not enough condition of an electric weight, and in the time that this battery meets the not enough condition of this electric weight, this embedded controller also provides a driving for electric signal;
One drive circuit, judge for electric signal whether this confession electric signal meets one first low-voltage condition according to this driving, in the time that this confession electric signal meets this first low-voltage condition, this driving circuit triggers one first warning event, and wherein this first low-voltage condition is relevant to this level for electric signal; And
One User's Interface device, in response to this first warning Event triggered one first user's event;
Wherein, this power switch is also conducting in response to one first Action Events, to provide this confession electric signal to power to this computer unit;
Wherein, this power switch also in response to one second Action Events for closing so that this battery and this computer unit are suspension joint in fact, control by this this computer unit in an off-position,
Wherein this driving circuit comprises:
One signal converter, produces a current conversion signal in response to this driving for electric signal;
One Wheatstone bridge, in order to provide one first to control voltage signal and one second control voltage signal, this Wheatstone bridge also in response to this current conversion signal determine this first and this second difference voltage signal of controlling between voltage signal, the size of this difference voltage signal is relevant with this driving confession electric signal; And
One comparator circuit, judge whether this difference voltage signal is greater than in fact a critical numerical value, to judge whether this confession electric signal meets this first low-voltage condition, in the time that this confession electric signal meets this first low-voltage condition, this comparator circuit provides one first to control signal to trigger this first warning event.
2. hand hand computer system as claimed in claim 1, wherein this Wheatstone bridge comprises:
One signal input node;
One first node and a Section Point, have respectively this first and this second control voltage signal;
One first resistance R 6 and one second resistance R 8, first end receives respectively one with reference to high level signal and a reference low level signal, and the second end is coupled to this Section Point;
One the 3rd resistance R 7 and one the 4th resistance R 9, first end receives respectively this with reference to high level signal and is coupled to this signal input node, and the second end is coupled to this first node; And
One the 5th resistance R 10, first end and the second end are coupled to respectively this signal input node and receive this reference low level signal.
3. hand hand computer system as claimed in claim 2, wherein this first to the 5th resistor satisfied condition:
R7×R8=R6×(R9+R10)
R6-R10 represents respectively this first to the 5th resistance.
4. hand hand computer system as claimed in claim 1, wherein this User's Interface device comprises:
One circuit of LED, in order to be activation in response to this first control signal, to produce a warning light signal, triggers this first user event by this.
5. hand hand computer system as claimed in claim 1, wherein this driving circuit also judges for electric signal whether this confession electric signal meets one second low-voltage condition according to this driving, in the time that this confession electric signal meets this second low-voltage condition, this driving circuit triggers one second warning event, and wherein this second low-voltage condition is relevant to this level for electric signal;
Wherein, this User's Interface device is also in response to this second warning Event triggered one second user's event.
6. hand hand computer system as claimed in claim 1, wherein this driving circuit comprises:
One coding decoder circuit, in order to provide one first Sound control signal to trigger this first warning event; And
Wherein, this User's Interface device more comprises:
One sound intensifier, produces a voice emplifying control signal in response to this first Sound control signal; And
One horn circuit, is activation in response to this amplification first Sound control signal, to produce a warning sound signal, triggers by this this first user event.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010525725.4A CN102455771B (en) | 2010-10-27 | 2010-10-27 | Handheld computer system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010525725.4A CN102455771B (en) | 2010-10-27 | 2010-10-27 | Handheld computer system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102455771A CN102455771A (en) | 2012-05-16 |
| CN102455771B true CN102455771B (en) | 2014-06-25 |
Family
ID=46039032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010525725.4A Active CN102455771B (en) | 2010-10-27 | 2010-10-27 | Handheld computer system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102455771B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6252511B1 (en) * | 1997-06-20 | 2001-06-26 | Compaq Computer Corporation | Real-time battery gauge display |
| CN101242172A (en) * | 2007-02-08 | 2008-08-13 | 佛山市顺德区顺达电脑厂有限公司 | Delay circuit |
| CN201142006Y (en) * | 2008-01-08 | 2008-10-29 | 硕呈科技股份有限公司 | Standby-mode electric power alteration awakening device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4282681B2 (en) * | 2006-04-07 | 2009-06-24 | 株式会社東芝 | Information processing apparatus and sound output method |
-
2010
- 2010-10-27 CN CN201010525725.4A patent/CN102455771B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6252511B1 (en) * | 1997-06-20 | 2001-06-26 | Compaq Computer Corporation | Real-time battery gauge display |
| CN101242172A (en) * | 2007-02-08 | 2008-08-13 | 佛山市顺德区顺达电脑厂有限公司 | Delay circuit |
| CN201142006Y (en) * | 2008-01-08 | 2008-10-29 | 硕呈科技股份有限公司 | Standby-mode electric power alteration awakening device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102455771A (en) | 2012-05-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR20200080143A (en) | Protection circuit | |
| CN110333403B (en) | Electromagnetic band-type brake abnormity detection device and method | |
| CN104466914A (en) | Short-circuit protection circuit and switching power supply and protection method thereof | |
| JP5999987B2 (en) | Power path circuit | |
| JP2014166141A (en) | Control circuit and control method for battery branch of battery system | |
| CN105491473A (en) | Bluetooth earphone with continuous power supply | |
| CN110891219A (en) | Wireless earphone awakening circuit and wireless earphone | |
| CN101207294A (en) | Battery pre-charging circuit | |
| CN102455771B (en) | Handheld computer system | |
| CN105099419B (en) | Power chip with electrostatic discharge protection | |
| CN212875375U (en) | Low-impedance direct-current undervoltage overvoltage reverse connection protection circuit | |
| JP5902136B2 (en) | Battery monitoring device and battery monitoring system | |
| CN203398784U (en) | Reversal connection protection circuit of battery charging circuit | |
| CN114609532A (en) | Overcurrent detection circuit for charge pump | |
| CN112600167B (en) | Overcurrent protection circuit of high-voltage stabilizer | |
| JP5481327B2 (en) | Power supply circuit using rechargeable battery | |
| US8564448B2 (en) | Portable computer system | |
| JP2019103305A (en) | Power supply device and communication device | |
| CN204360770U (en) | A kind of electronics whistle of Tape movement power supply | |
| CN207265653U (en) | Protection circuit for system cut-off | |
| CN108288850B (en) | Voltage conversion input/output low-end conduction protection circuit | |
| CN216216055U (en) | Energy storage power supply circuit | |
| CN206202235U (en) | A kind of drive circuit of piezoelectric buzzing piece and burglar alarm | |
| CN109769185B (en) | Low-voltage alarm circuit for hearing aid | |
| CN205452780U (en) | A laser pulse code production device for car collision avoidance system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |