CN203840386U - Automatic power-on circuit of communication terminal after insertion of SIM card - Google Patents
Automatic power-on circuit of communication terminal after insertion of SIM card Download PDFInfo
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- CN203840386U CN203840386U CN201420063806.0U CN201420063806U CN203840386U CN 203840386 U CN203840386 U CN 203840386U CN 201420063806 U CN201420063806 U CN 201420063806U CN 203840386 U CN203840386 U CN 203840386U
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- mobile terminal
- sim card
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- 238000003780 insertion Methods 0.000 title abstract description 6
- 230000037431 insertion Effects 0.000 title abstract description 6
- 238000004891 communication Methods 0.000 title abstract description 4
- 239000004065 semiconductor Substances 0.000 claims description 26
- 230000005669 field effect Effects 0.000 claims description 18
- 230000003111 delayed effect Effects 0.000 claims description 15
- 238000012360 testing method Methods 0.000 claims description 9
- 239000003381 stabilizer Substances 0.000 claims description 3
- 230000004438 eyesight Effects 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract 2
- 239000003990 capacitor Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Abstract
The utility model discloses an automatic power-on circuit of communication terminal after insertion of an SIM card. The automatic power-on circuit comprises a mobile terminal with an external insertion SIM card interface. A socket aiming at an SIM card is arranged on the mobile terminal. Two pins in the socket are connected with each other after insertion of the SIM card. One of the two pins is connected with a negative electrode of a power supply. The central processor chip of the mobile terminal has a power-on signal detection end. The automatic power-on circuit also comprises an electronic switch circuit connected with and controlled by the other pin of the two pins. The switch input of the electronic switch circuit is connected with the power supply output end of the mobile terminal. The switch output of the electronic switch circuit is connected with a time-delay signal output circuit. The time-delay output of the time-delay signal output circuit is connected with the power-on signal detection end of the mobile terminal. The automatic power-on circuit is added with a new communication terminal power-on mode, is simple in structure, and is especially suitable for old people and special people with vision or body disability.
Description
Technical field
The utility model relates to a kind of communicating terminal and inserts the automatic boot circuit after SIM card, it is the automatic boot circuit for a kind of communicating terminal of outside plug type SIM card, open metal-oxide-semiconductor by insertion SIM card battery is powered to main power source by metal-oxide-semiconductor, trigger start by a delay circuit to the start pin of master chip subsequently.
Background technology
Some hand-hold communication appliances such as current mobile phone are all provided with an ON/OFF switch, are to realize start by long by ON/OFF switch when start, and for special population, such as the elderly waits special population because the reasons such as eyesight, muscle power, deformity are inconvenient to use.
Summary of the invention
The purpose of this utility model is to provide a kind of communicating terminal and inserts the automatic boot circuit technical scheme realizing after SIM card, it is the automatic boot circuit for a kind of communicating terminal of outside plug type SIM card, open metal-oxide-semiconductor by insertion SIM card battery is powered to main power source by metal-oxide-semiconductor, trigger start by a delay circuit to the start pin of master chip subsequently.
To achieve these goals, the technical solution of the utility model is: a kind of communicating terminal inserts the automatic boot circuit after SIM card, comprise a mobile terminal with outer plug sim card interface, on mobile terminal, be provided with the socket for described SIM card, two pin in socket are inserting mutual conduction after SIM card, a pin in described two pin is connected with power cathode, and the central processor core of described mobile terminal has a starting-up signal test side; Wherein, described automatic boot circuit also comprises that one connects by another pin in described two pin the electronic switching circuit of controlling, the switch input of described electronic switching circuit connects mobile terminal power output end, the switch output of electronic switching circuit connects a time delayed signal output circuit, and the time delay output of time delayed signal output circuit connects the starting-up signal test side of described mobile terminal.
Scheme is further, described electronic switching circuit comprises a field effect metal-oxide-semiconductor, the control grid of field effect metal-oxide-semiconductor connects another pin in described two pin, the drain electrode of described field effect metal-oxide-semiconductor connects described time delayed signal output circuit as the switch output of electronic switching circuit, the source electrode of described field effect metal-oxide-semiconductor connects mobile terminal positive source, is connected with a formation source electrode and the poor resistance of control gate extreme pressure at the source electrode of described field effect metal-oxide-semiconductor with controlling between grid.
Scheme further, is connected with voltage-stabiliser tube and the electric capacity of voltage regulation of anti-reverse impact voltage between the source electrode of described field effect metal-oxide-semiconductor and mobile terminal power cathode.
Scheme is further, described time delayed signal output circuit comprises the charge circuit of resistance and capacitances in series, wherein one end of electric capacity connects the switch output of described electronic switching circuit, the other end of electric capacity is connected to the negative pole of mobile terminal power supply by the first resistance, be connected a switch triode base stage with the link of the first resistance by the second resistance at electric capacity, switch triode emitter connects the negative pole of mobile terminal power supply, and switch triode collector electrode is connected to the starting-up signal test side of the central processor core of described mobile terminal.
Further, described time delayed signal output circuit is the circuit of a time delay output in 2 seconds to scheme.
Scheme further, is provided with discharge diode at the two ends of described electric capacity.
The beneficial effects of the utility model are: increase a kind of pattern of new communicating terminal start, and simple in structure, be particularly suitable for the elderly and have the use of the special population of eyesight, muscle power deformity.
Below in conjunction with the drawings and specific embodiments, the utility model is further described in detail.
Brief description of the drawings
Fig. 1 is the utility model circuit structure diagram.
Embodiment
A kind of communicating terminal inserts the automatic boot circuit embodiment after SIM card, referring to Fig. 1, described automatic boot circuit comprises a mobile terminal with outer plug sim card interface, on mobile terminal, be provided with the socket 1 for described SIM card, two pin in socket are inserting mutual conduction after SIM card, a pin in described two pin is connected with the negative pole of power-supply battery 3, and the central processor core 2 of described mobile terminal has a starting-up signal test side; Wherein, described automatic boot circuit also comprises that one connects by another pin in described two pin the electronic switching circuit of controlling, and is called battery electrification circuit; The switch input of described electronic switching circuit connects the output (positive pole) of mobile terminal power-supply battery, the switch output of electronic switching circuit connects a time delayed signal output circuit, be called time-delay start-up circuit, the time delay output of time delayed signal output circuit connects the starting-up signal test side of described mobile terminal.
In embodiment, what the socket of described SIM card used is the socket of model SIM-475531001, and SIM chip inserts 7 pin and the 8 pin conductings of rear socket, wherein 7 pin is connected to power cathode, and in figure, the connecting line of socket is exactly the connecting line of practical application.
In embodiment, the central processor core of described mobile terminal adopts the MTK6252A master chip of Taiwan Lian Fake, triggering terminal start-up mode triggers start flow process 2 seconds for MTK6252A chip pin PWR_KEY when terminal powers on after drags down and makes starting up of terminal, and the main start-up mode of terminal in the market will be pinned key flip chip PWR_KEY pin after battery and realizes machine unlatching for inserting.
Described electronic switching circuit can have various ways, as a preferred version of the present embodiment; Described electronic switching circuit comprises a field effect metal-oxide-semiconductor Q1, the control grid of field effect metal-oxide-semiconductor connects another pin in described two pin, 8 pin of socket in embodiment, are connected to, the drain electrode of described field effect metal-oxide-semiconductor connects described time delayed signal output circuit as the switch output of electronic switching circuit, the source electrode of described field effect metal-oxide-semiconductor connects mobile terminal positive source, at the source electrode of described field effect metal-oxide-semiconductor and control and be connected with one between grid and form source electrode and the poor resistance R 3 of control gate extreme pressure, the resistance value of R3 is 100K ohm.
Operation principle is: when this signal ground being formed to loop after 7 pin and 8 pin conductings, 8 pin electrolytic grounding cell electric currents form loop resistance R3 two ends by the rear ground connection of resistance R 3 and form voltage metal-oxide-semiconductor control grid and the conducting of source electrode formation pressure reduction metal-oxide-semiconductor, battery to complete machine power supply, is called and powers on after MOS.
In embodiment, be connected with voltage-stabiliser tube D2 and the electric capacity of voltage regulation C2 of anti-reverse impact voltage between the source electrode of described field effect metal-oxide-semiconductor and mobile terminal power cathode, the value of C2 is 100 microfarads.
In embodiment, described time delayed signal output circuit comprises the charge circuit that resistance and capacitor C 1 are connected, wherein one end of capacitor C 1 connects the switch output of described electronic switching circuit, it is the drain electrode of Q1, the other end of electric capacity is connected to the negative pole of mobile terminal power supply by the first resistance R 1, be connected a switch triode Q2 base stage with the link of the first resistance by the second resistance R 2 at electric capacity, switch triode emitter connects the negative pole of mobile terminal power supply, and switch triode collector electrode is connected to the starting-up signal test side of the central processor core of described mobile terminal.
In embodiment, described time delayed signal output circuit is the circuit of a 2 seconds time delays output, therefore resistance R 1 and R2 respectively value be 820K ohm, capacitor C 1 value is 10 microfarads.
In embodiment, in order to open when can fast electric capacity electric weight being bled off to the machine causing while preventing quick turn-on after power down, be provided with discharge diode D1 at the two ends of described electric capacity.
Above-described embodiment makes terminal automatic boot circuit flow process open metal-oxide-semiconductor battery is powered to main power source by metal-oxide-semiconductor for inserting SIM card, after main power source has electricity, capacitor charging resistance voltage rising triode is opened, and start pin is connected to and is triggered start flow process starting up of terminal by triode.
The present embodiment can produce the time delay variation of a 2S after powering on to be changed so that terminal can collect the level of signal, mainly be that the selection of electric capacity and the resistance of resistance trigger the start pin of master chip to reach a suitable high level time, can realize an automatic time delay circuit by this circuit and can be widely used in design.
The advantage of the present embodiment is to realize Auto Power On with low-down cost, because logical product electronic product all will be by the length of a starting key by realizing start, for special population, such as the elderly waits special population to be inconvenient to use due to reasons such as eyesight, muscle power, deformity, and the present embodiment can be applied in similar machine circuit design.
Claims (6)
1. a communicating terminal inserts the automatic boot circuit after SIM card, comprise a mobile terminal with outer plug sim card interface, on mobile terminal, be provided with the socket for described SIM card, two pin in socket are inserting mutual conduction after SIM card, a pin in described two pin is connected with power cathode, and the central processor core of described mobile terminal has a starting-up signal test side; It is characterized in that, described automatic boot circuit also comprises that one connects by another pin in described two pin the electronic switching circuit of controlling, the switch input of described electronic switching circuit connects mobile terminal power output end, the switch output of electronic switching circuit connects a time delayed signal output circuit, and the time delay output of time delayed signal output circuit connects the starting-up signal test side of described mobile terminal.
2. a kind of communicating terminal according to claim 1 inserts the automatic boot circuit after SIM card, it is characterized in that, described electronic switching circuit comprises a field effect metal-oxide-semiconductor, the control grid of field effect metal-oxide-semiconductor connects another pin in described two pin, the drain electrode of described field effect metal-oxide-semiconductor connects described time delayed signal output circuit as the switch output of electronic switching circuit, the source electrode of described field effect metal-oxide-semiconductor connects mobile terminal positive source, at the source electrode of described field effect metal-oxide-semiconductor and control and be connected with one between grid and form source electrode and the poor resistance of control gate extreme pressure.
3. a kind of communicating terminal according to claim 2 inserts the automatic boot circuit after SIM card, it is characterized in that, is connected with voltage-stabiliser tube and the electric capacity of voltage regulation of anti-reverse impact voltage between the source electrode of described field effect metal-oxide-semiconductor and mobile terminal power cathode.
4. a kind of communicating terminal according to claim 1 and 2 inserts the automatic boot circuit after SIM card, it is characterized in that, described time delayed signal output circuit comprises the charge circuit of resistance and capacitances in series, wherein one end of electric capacity connects the switch output of described electronic switching circuit, the other end of electric capacity is connected to the negative pole of mobile terminal power supply by the first resistance, be connected a switch triode base stage with the link of the first resistance by the second resistance at electric capacity, switch triode emitter connects the negative pole of mobile terminal power supply, switch triode collector electrode is connected to the starting-up signal test side of the central processor core of described mobile terminal.
5. a kind of communicating terminal according to claim 4 inserts the automatic boot circuit after SIM card, it is characterized in that, described time delayed signal output circuit is the circuit of a time delay output in 2 seconds.
6. a kind of communicating terminal according to claim 4 inserts the automatic boot circuit after SIM card, it is characterized in that, is provided with discharge diode at the two ends of described electric capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420063806.0U CN203840386U (en) | 2014-02-13 | 2014-02-13 | Automatic power-on circuit of communication terminal after insertion of SIM card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420063806.0U CN203840386U (en) | 2014-02-13 | 2014-02-13 | Automatic power-on circuit of communication terminal after insertion of SIM card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203840386U true CN203840386U (en) | 2014-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420063806.0U Expired - Lifetime CN203840386U (en) | 2014-02-13 | 2014-02-13 | Automatic power-on circuit of communication terminal after insertion of SIM card |
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| Country | Link |
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| CN (1) | CN203840386U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105577858A (en) * | 2015-12-23 | 2016-05-11 | 周岩 | Circuit for automatically powering on after SIM card inserted into communication terminal |
| WO2017008602A1 (en) * | 2015-07-16 | 2017-01-19 | 惠州Tcl移动通信有限公司 | Mobile terminal comprising power on/off mechanism |
| CN106775848A (en) * | 2016-11-30 | 2017-05-31 | 宇龙计算机通信科技(深圳)有限公司 | A kind of starting-up method, device and terminal |
-
2014
- 2014-02-13 CN CN201420063806.0U patent/CN203840386U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017008602A1 (en) * | 2015-07-16 | 2017-01-19 | 惠州Tcl移动通信有限公司 | Mobile terminal comprising power on/off mechanism |
| CN105577858A (en) * | 2015-12-23 | 2016-05-11 | 周岩 | Circuit for automatically powering on after SIM card inserted into communication terminal |
| CN106775848A (en) * | 2016-11-30 | 2017-05-31 | 宇龙计算机通信科技(深圳)有限公司 | A kind of starting-up method, device and terminal |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140917 |