CN1474249A - Power managing device of electronic peripheral card - Google Patents
Power managing device of electronic peripheral card Download PDFInfo
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- CN1474249A CN1474249A CNA02127696XA CN02127696A CN1474249A CN 1474249 A CN1474249 A CN 1474249A CN A02127696X A CNA02127696X A CN A02127696XA CN 02127696 A CN02127696 A CN 02127696A CN 1474249 A CN1474249 A CN 1474249A
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- power supply
- power source
- storage element
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Abstract
The power supply managing device for electronic peripheral card includes one function module, one interface bus, one bus bridging unit, one power supply memory unit, one outer power supply input unit and one power supply control unit. The power supply control unit controls the bus bridging unit, the outer power supply input unit and the power supply memory unit, so that the bus bridging unit provides the interface power to the functional device and charges the power supply memory unit, the bus bridging unit provides the interface power directly to charge the power supply memory unit, the outer power supply input unit provides the outer power supply to the functional device and charges the power supply memory unit, or the outer power supply input unit charges directly the power supply memory unit optionally.
Description
Technical field
The invention relates to a kind of electric power controller, refer to a kind of electric power controller of electronic card especially.
Background technology
Press, progress along with electronics technology, the all kinds of electronic devices miniaturization that becomes of having healed, for example, notes type (Notebook) computer, hand held (Palm) computer or PDA(Personal Digital Assistant) etc., the electronic installation that this kind is small-sized is owing to can carry and have powerful calculation process ability, therefore, the user can be provided great convenience, yet, because volume is little, so general this kind compact electronic device only is provided with the basic processing circuit, for other extra circuit module, for example, additional memory body, modem, Local Area Network Cards etc., then be to realize the function of being correlated with the corresponding miniature electric card of pegging graft, this kind electronic card is to have at least one functional module group and a PCMCIA/CF interface for example, being plugged on the small-sized electronic installation or PC, so that carry out the exchange of data or storage etc.
Traditionally, the functional module group of aforementioned electronic card is to use the power supply on the interface to keep and operate, yet, power supply on the interface is extremely limited, so when functional module group is to be the bigger GPRS of power consumption, Wi-Fi, or during communication module group such as GPS, just can cause the power shortage that is supplied to electronic card and can't operate, for example, the maximum current that the CF interface bus can provide when 3.3 volts are spent with 25 is 75 milliamperes (mA), the electric current that can provide when 5V and 25 spends is 100mA, yet the required drive current of existing integration packet radio (GPRS) module is but up to 300 (mA).
For aforesaid problem, a kind of direct settling mode is battery of extra adding on this electronic card, reaches the functional module group of big this electronic card of current drives to provide one.And under this framework, power supply how the management interfaces bus is provided and the battery supply that adds can normally be worked with the functional module group of guaranteeing electronic card, become an epochmaking problem then.
The inventor whence originally in the spirit of positive invention, is urgently thought a kind of " electric power controller of electronic card " that can address the above problem because of in this, and several times research experiment is eventually to the invention of finishing this Jiahui common people.
Summary of the invention
Fundamental purpose of the present invention is that a kind of electric power controller of electronic card is being provided, so that effectively management interfaces power supply, battery supply and external power source are to the power supply of electronic card and to the charging of battery.
For reaching above-mentioned purpose, the electric power controller of electronic card of the present invention mainly comprises: a functional module group provides a specific electronic card function; One interface bus is in order to connecting a host side, and wherein, this host side sees through this interface bus and provides an interface power supply; One bus bridge unit, be connected in this functional module group and this interface bus between, in order to change the interface form of this interface bus and this functional module group; One power supply storage element is in order to provide one to store power supply to this functional module group; One external power source input block is in order to plug an external power source plug, to provide an external power source to this functional module group or to this power supply storage element charging; And, one power control unit, in order to control this bus bridge unit, this external power source input block, and this power supply storage element, again this power supply storage element is charged so that optionally supply this interface power supply to this functional device by this bus bridge unit, by this bus bridge unit directly supply this interface power supply to this power supply storage element to charge, supplying this external power source to this functional device by this external power source input block charges to this power supply storage element again, and by this external power source input block directly supply this external power source to this power supply storage element to charge.
Wherein this interface bus is the CF interface, and this bus bridge unit is to be the CF bridge.
Wherein, this power control unit comprises a detecting voltage device, switch means and voltage stabilizing means, with when this detecting voltage device detecting external power source plug is not connected with the external power source input block, these switch means of conducting, make interface power supply that this bus bridge unit provided see through this voltage stabilizing section and export the fixed current of a burning voltage, directly this power supply storage element being charged, or see through this functional module group and come power supply storage element 7 is charged.
Wherein, when the detecting voltage device is detected this external power source plug and is connected with the external power source input block, these switch means are opened circuit, the external power source electric current that makes the external power source input block be provided is directly exported the fixed current of a burning voltage via the voltage stabilizing means, come directly the power supply storage element to be charged, or come the power supply storage element is charged through this functional module group.
Wherein, this power supply storage element is to be a rechargeable battery.
Wherein, this functional module group is to be a wireless telecommunications module, so that GPRS, RF or GPS access facility to be provided.
Wherein, this external power source input block is for plugging one
Because the present invention constructs novelty, can provide on the industry and utilize, and truly have the enhancement effect, so apply for patent of invention in accordance with the law.
Description of drawings
For making the auditor can further understand structure of the present invention, feature and purpose thereof, below in conjunction with the detailed description of accompanying drawing and preferred embodiment as after, wherein:
Fig. 1 is the functional block diagram of the electric power controller of electronic card of the present invention.
Fig. 2 is the power supply/charge path synoptic diagram of electronic card of the present invention.
Fig. 3 is the circuit diagram of the power control unit of electronic card of the present invention.
Fig. 4 is another circuit diagram of the power control unit of electronic card of the present invention.
Embodiment
The preferred embodiment of the electric power controller of relevant electronic card of the present invention is to be illustrated with the PDA(Personal Digital Assistant) electronic card of arranging in pairs or groups.Please be with reference to the functional block diagram of Fig. 1 demonstration, this host side 1 is to represent a PDA, and this electronic card then comprises members such as an interface bus 3, a bus bridge unit 3, a functional module group 4, a power control unit 5, an external power source input block 6 and a power supply storage element 7 and forms.
Aforementioned interface bus 2 is in order to being connected to this host side, and with as the be connected interface of electronic card with host side 1, it preferably is a CF (Compact Flash) interface, and sees through this CF interface, and this host side 1 also provides an interface power Vcc-cF.Bus bridge unit 3 is connected between this functional module group 4 and this interface bus 2, in order to the interface form of conversion interface bus 2 with this functional module group 4,4 of this functional module group see through bus bridge unit 3 and come to provide a specific electronic card function to host side 1 with interface bus 2.In present embodiment, this functional module group 4 preferably is wireless telecommunications modules such as a GPRS module, radio frequency module or global positioning satellite (GPS) module, so that corresponding GPRS, RF or GPS access facility to be provided.Power control unit 5 is connected to bus bridge unit 3, functional module group 4, power supply storage element 7 and external power source input block 6, controlling this bus bridge unit 3, this power supply storage element 7, and external power source input block, and provide power supply to this functional module group 4.In present embodiment, this power supply storage element 7 is preferably a rechargeable battery.And power control unit 5 more comes power supply storage element 7 is directly or indirectly charged with external power source input block 6 in this bus bridge unit 3 of may command.
Fig. 2 shows that it has four kinds of power supply/charge paths to the synoptic diagram in the power supply/charge path of this functional module group 4 and power supply storage element 7.This bus bridge unit 3 of serving as reasons, the first power supply/charge path provides a drive current, and via 4 power supplies of 5 pairs of these functional module group of power control unit, sees through this functional module group 4 again and to the power supply storage element 7 (IV → I → III → II) that charges.That is when the drive current that is provided when bus bridge unit 3 was enough to drive this functional module group 4, then seeing through this functional module group 4 provided a small electric current to come lentamente power supply storage element 7 to be charged.Second charge path is that bus bridge unit 3 directly sees through power control unit 5 and comes power supply storage element 7 charged that (IV → II) is so that power supply source storage element 7 provides enough big drive currents to this functional module group 4.
The 3rd charge path is by external power source input block 6 input one drive current, and via 4 power supplies of 5 pairs of these functional module group of power control unit, sees through this functional module group 4 again and to the power supply storage element 7 (V → I → III → II) that charges.That is the drive current that is provided by external power source input block 6 drives this functional module group 4, and provides a small electric current to come lentamente power supply storage element 7 to be charged through this functional module group 4.The 4th charge path then comes power supply storage element 7 charged for external power source input block 6 directly sees through power control unit 5 that (V → II) is so that provide a drive current to this functional module group 4 by power supply storage element 7.In present embodiment, external power source input block 6 is for plugging a direct current power-supply adapter (DC Power Adapter).
First kind of circuit of Fig. 3 display power supply control module 5 inside is real makes synoptic diagram, and it mainly is made up of detecting voltage device 51, switching transistor 521,522, voltage stabilizing regulon 531,532, commutation diode 541,542 and first change-over switch 55.In present embodiment, switching transistor 521,522 are preferably complementary matal-oxide semiconductor transistor (CMOS Transistor), commutation diode 541,542 are preferably Schottky diode, voltage stabilizing regulon 531,532 be preferably low dropout voltage regulator (Low DropoutRegulator, LDO).
External power source input block 6 has first pin 61, second pin 62 and the 3rd pin 63.When external power source input block 6 is not connected (promptly not importing external power source), then second pin 62 and the 3rd pin 63 normality ground connection with external power source plug (figure does not show).Otherwise external power source input block 6 is connected with the external power source plug, and then second pin 62 flicks and is not connected with the 3rd pin 63.
Aforesaid detecting voltage device 51 sees through its electronegative potential activation pin 511 and is connected with this second pin 62, and the output terminal of detecting voltage device 51 more is connected in the gate of switching transistor 521, the drain of switching transistor 521 then is connected in the gate of switching transistor 522, and the source electrode of switching transistor 522 and drain then are connected to the power pin (Vcc-cF) and voltage stabilizing regulon 531 that bus bridge unit 3 is provided respectively.Then, voltage stabilizing regulon 531 is connected with first change-over switch 55 through commutation diode 541 again.The defeated F of voltage stabilizing regulon 532 goes into end and then is connected with this first pin 61, and the output terminal of voltage stabilizing regulon 532 is connected with commutation diode 542, and commutation diode 542 is connected with first change-over switch 55 again.The output terminal of first change-over switch 55 then is connected to this functional module group 4 and power supply storage element 7.Wherein, commutation diode 541,542 is mainly used to rectification, and prevents contrary another charge path that is charged to of electric current.
When the external power source plug is not connected with external power source input block 6, because of second pin 62 is a normality ground connection, then order about the 51 electronegative potential activations of detecting voltage device, make switching transistor 521,522 conductings.Therefore, the electric current that the power pin of bus bridge unit 3 (Vcc-cF) is provided will be by switching transistor 522, then see through the fixed current of voltage stabilizing regulon 531 outputs one burning voltage, and the switching via first change-over switch 55 directly power supply storage element 7 charges, or comes power supply storage element 7 is charged through this functional module group 4 indirectly.
When the external power source plug is connected with external power source input block 6, second pin 62 flicks, and makes the 51 not activations of noble potential of detecting voltage device, and orders about switching transistor 521,522 not conductings.Therefore, the electric current that external power source input block 6 is provided is directly exported the fixed current of a burning voltage via voltage stabilizing regulon 532, and come directly power supply storage element 7 via the switching of first change-over switch 55, or see through this functional module group 4 indirectly and come power supply storage element 7 is charged.
Fig. 4 is the real synoptic diagram of doing of second kind of circuit of power control unit of the present invention, and member that it comprised and built-in function situation and the 3rd figure are similar.Only, external power source input block 6 and detecting voltage device 51 and voltage stabilizing regulon have increased by one second change-over switch 56 more 532.This second change-over switch 56 is preferably a double-pole four position switch, and its change action is mainly I-II, IV-V and II-III, and two kinds of switching states of V-VI, wherein the I of second change-over switch 56 represents ground connection, and the IV of second change-over switch 56 represents suspension joint.
When second change-over switch 56 switches to I-II, the IV-V state, detecting voltage device 51 will order about switching transistor 521 because of the electronegative potential activation, 522 conductings, so that provide charging current, and make that the electric current of input voltage stabilizing regulon 532 is zero for the power pin (Vcc-cF) that is provided by bus bridge unit 3.When second change-over switch 56 switches to II-III, the V-VI state, then detecting voltage device 51 will order about switching transistor 521,522 because of not activation of noble potential and cut out, so that provide charging current to voltage stabilizing regulon 532 for external power source input block 6.
In sum, no matter the present invention all differs from the feature of known technology with regard to purpose, means and effect, in fact is one to have the invention of practical value.Only it should be noted that the foregoing description is for convenience of explanation, the non-the foregoing description that only limits to of the interest field that the present invention advocated, and all technical though relevant with the present invention all belong to category of the present invention.
Claims (7)
1. the electric power controller of an electronic card is characterized in that, mainly comprises:
One functional module group provides a specific electronic card function;
One interface bus is in order to connecting a host side, and wherein, this host side sees through this interface bus and provides an interface power supply;
One bus bridge unit is connected between this functional module group and this interface bus, in order to change the interface form of this interface bus and this functional module group;
One power supply storage element is in order to provide one to store power supply to this functional module group;
One external power source input block is in order to plug an external power source plug, to provide an external power source to this functional module group or to this power supply storage element charging; And
One power control unit, in order to control this bus bridge unit, this external power source input block, and this power supply storage element, again this power supply storage element is charged so that optionally supply this interface power supply to this functional device by this bus bridge unit, by this bus bridge unit directly supply this interface power supply to this power supply storage element to charge, supplying this external power source to this functional device by this external power source input block charges to this power supply storage element again, and by this external power source input block directly supply this external power source to this power supply storage element to charge.
2. the electric power controller of electronic card as claimed in claim 1 is characterized in that, wherein this interface bus is the CF interface, and this bus bridge unit is to be the CF bridge.
3. the electric power controller of electronic card as claimed in claim 2, it is characterized in that, wherein, this power control unit comprises a detecting voltage device, switch means and voltage stabilizing means, with when this detecting voltage device detecting external power source plug is not connected with the external power source input block, these switch means of conducting, make interface power supply that this bus bridge unit provided see through this voltage stabilizing section and export the fixed current of a burning voltage, directly this power supply storage element being charged, or see through this functional module group and come power supply storage element 7 is charged.
4. the electric power controller of electronic card as claimed in claim 3, it is characterized in that, wherein, when the detecting voltage device is detected this external power source plug and is connected with the external power source input block, these switch means are opened circuit, the external power source electric current that makes the external power source input block be provided is directly exported the fixed current of a burning voltage via the voltage stabilizing means, come directly the power supply storage element to be charged, or come the power supply storage element is charged through this functional module group.
5. the electric power controller of electronic card as claimed in claim 1 is characterized in that, wherein, this power supply storage element is to be a rechargeable battery.
6. the electric power controller of electronic card as claimed in claim 1 is characterized in that, wherein, this functional module group is to be a wireless telecommunications module, so that GPRS, RF or GPS access facility to be provided.
7. the electric power controller of electronic card as claimed in claim 1 is characterized in that, wherein, this external power source input block is for plugging a direct current power-supply adapter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02127696XA CN1306363C (en) | 2002-08-07 | 2002-08-07 | Power managing device of electronic peripheral card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02127696XA CN1306363C (en) | 2002-08-07 | 2002-08-07 | Power managing device of electronic peripheral card |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1474249A true CN1474249A (en) | 2004-02-11 |
| CN1306363C CN1306363C (en) | 2007-03-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB02127696XA Expired - Fee Related CN1306363C (en) | 2002-08-07 | 2002-08-07 | Power managing device of electronic peripheral card |
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| Country | Link |
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| CN (1) | CN1306363C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1942016B (en) * | 2005-09-27 | 2010-12-29 | 普诚科技股份有限公司 | Chargeable circuit, integrated circuit and controlling method |
| CN102055236A (en) * | 2009-10-29 | 2011-05-11 | 胜德国际研发股份有限公司 | Intelligent power supply management system and method |
| CN102609390A (en) * | 2011-12-12 | 2012-07-25 | 威盛电子股份有限公司 | Bridge device and power-saving operation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990016024A1 (en) * | 1989-06-12 | 1990-12-27 | Grid Systems Corporation | Computer with provision for continued operation during battery change |
| US5706239A (en) * | 1996-02-27 | 1998-01-06 | Centennial Technologies, Inc. | Rechargeable SRAM/flash PCMCIA card |
| US6199168B1 (en) * | 1998-09-24 | 2001-03-06 | Sierra Wireless, Inc. | Personal computer card power management system |
| JP2001005569A (en) * | 1999-06-18 | 2001-01-12 | Matsushita Electric Ind Co Ltd | Radio communication equipment integrated with pc card |
-
2002
- 2002-08-07 CN CNB02127696XA patent/CN1306363C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1942016B (en) * | 2005-09-27 | 2010-12-29 | 普诚科技股份有限公司 | Chargeable circuit, integrated circuit and controlling method |
| CN102055236A (en) * | 2009-10-29 | 2011-05-11 | 胜德国际研发股份有限公司 | Intelligent power supply management system and method |
| CN102055236B (en) * | 2009-10-29 | 2013-05-01 | 胜德国际研发股份有限公司 | Intelligent power supply management system and method |
| CN102609390A (en) * | 2011-12-12 | 2012-07-25 | 威盛电子股份有限公司 | Bridge device and power-saving operation method thereof |
| CN102609390B (en) * | 2011-12-12 | 2014-12-10 | 威盛电子股份有限公司 | Bridge device and power-saving operation method thereof |
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| Publication number | Publication date |
|---|---|
| CN1306363C (en) | 2007-03-21 |
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