CN101950372A - Mobile terminal containing data card and power-supply control unit thereof - Google Patents
Mobile terminal containing data card and power-supply control unit thereof Download PDFInfo
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- CN101950372A CN101950372A CN2010102367996A CN201010236799A CN101950372A CN 101950372 A CN101950372 A CN 101950372A CN 2010102367996 A CN2010102367996 A CN 2010102367996A CN 201010236799 A CN201010236799 A CN 201010236799A CN 101950372 A CN101950372 A CN 101950372A
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Abstract
Belonging to the technical field of data card, the invention discloses a mobile terminal containing a data card and a power-supply control unit thereof. The mobile terminal comprises a DC/DC module and a LDO module, wherein the DC/DC module is used for supplying power for a first power utilization module with higher current demand in the data card and the LDO module is used for supplying the power for a second power utilization module with lower current demand in the data card. In the invention, the DC/DC module is used for supplying the power for the first power utilization module with the higher current demand in the data card and the LDO module is used for supplying the power for the second power utilization module with the lower current demand in the data card. The scheme is simple and practical, not only satisfies power requirements for different data cards, but also greatly saves costs of the data cards and the complete machine.
Description
Technical field
The invention belongs to the data card technical field, be specifically related to a kind of portable terminal and power control thereof that comprises data card.
Background technology
The power supply supply of data card plays an important role to data card.
The power unit of wireless data card of the prior art generally is the power management IC that directly uses in the nest plate, owing to power management IC mainly designs for the mobile phone scheme, a lot of functions of power management IC do not obtain using on data card, and power management IC accounts for very big cost in the scheme of wireless data card, in case some function of design can not be used, and will cause great waste.
How for data card provides a kind of power supply controlling schemes that can be simple and practical, saving the cost of data card, is one of direction of data card technical field research.
Summary of the invention
The object of the present invention is to provide a kind of power control of data card, be intended to, save the cost of data card for data card provides a kind of power supply controlling schemes that can be simple and practical.
The embodiment of the invention is achieved in that a kind of power control of data card, and described structure comprises DC/DC module and LDO module;
Wherein, described DC/DC module is used for the first bigger electricity consumption module of described data card electric current demand is powered;
Described LDO module is used for the second smaller electricity consumption module of described data card electric current demand is powered.
An also purpose of the embodiment of the invention is to provide a kind of portable terminal that comprises data card, and described terminal comprises a power control, and described device comprises DC/DC module and LDO module;
Wherein, described DC/DC module is used for the first bigger electricity consumption module of described data card electric current demand is powered;
Described LDO module is used for the second smaller electricity consumption module of described data card electric current demand is powered.
The embodiment of the invention is that the first electricity consumption module that the electric current demand is bigger in the data card is powered by the DC/DC module, with the LDO module the second smaller electricity consumption module of electric current demand in the data card is powered, scheme is simple and practical, not only satisfy different SIM card power requirement, and saved the cost of data card and complete machine greatly.
Description of drawings
The power control figure of the data card that Fig. 1 provides for the embodiment of the invention;
One of the power control DC/DC module of the data card that Fig. 2 provides for the embodiment of the invention and realization principle schematic of LDO module for power supply power supply;
One of the power control DC/DC module of the data card that Fig. 3 provides for the embodiment of the invention and realization principle schematic of LDO module for power supply power supply.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Fig. 1 shows the power control of the data card that the embodiment of the invention provides.
Described device comprises DC-DC power supply (Direct Current/Direct Current, DC/DC) module and low pressure difference linear voltage regulator (Low Dropout Regulator, LDO) module, wherein, described DC/DC module is used for the first bigger electricity consumption module of described data card electric current demand is powered, and described LDO module is used for the second smaller electricity consumption module of described data card electric current demand is powered.
Wherein, the described first electricity consumption module comprises core voltage and memory storage (MEMORY) module that the main control chip-BB of described data card uses.
The described second electricity consumption module comprises mimic channel, the peripheral components of BB, the input and output (Input/Output of the BB of described data card, I/O) module, quartz oscillator (Temperature CompensateX ' tal (crystal) Oscillator, TCXO) crystal oscillator module, USB (universal serial bus) (Universal SerialBUS, USB) physics access addressing (PHY) module; The described second electricity consumption module also comprises radio-frequency module, flash memory (T-FLASH) and client identification module (Subscriber Identity Module, SIM) card.
Fig. 2 and Fig. 3 show the realization principle of DC/DC module and LDO module for power supply power supply in the power control of data card.
The 1.2V voltage of the DC/DC module output among Fig. 2 and 1.8V voltage are respectively to the core voltage of the BB of first electricity consumption module-data card and the supply voltage of MEMORY module, because the current ratio that these first electricity consumption modules require is bigger, so the DC/DC module for power supply is used in design, to guarantee the stable of system.
The 2.6V of the LDO module output among Fig. 2 is the supply voltage to the artificial circuit part of the BB of second electricity consumption module-data card; Another 2.6V output is the supply voltage of the peripheral components, I/O module to the BB of second electricity consumption module-data card etc.; 2.85V be supply voltage to TCXO crystal oscillator module; 3.3V be the supply voltage to USB PHY module, these voltages all require to open in the time of start.
See also Fig. 3, used four LDO modules in this power control, the LDO module among Fig. 3 is respectively to power to second electricity consumption module-radio-frequency module, T-FLASH and SIM card.Wherein, this power control also comprise general I/O (General Purpose Input Output, GPIO), described GPIO connects each LDO module respectively, described GPIO also connects described BB, and the enabling all to control by GPIO of these LDO modules opened and closed.
Described power control also comprises Metal-oxide-semicondutor type field effect transistor ((Metal-Ooxid-Semiconductor, MOS), include a scalable LDO module in the described LDO module, described metal-oxide-semiconductor connects described scalable LDO module, the output of described scalable LDO module is controlled by this metal-oxide-semiconductor: when metal-oxide-semiconductor was opened, R3 was in parallel with R2, R3 open circuit when metal-oxide-semiconductor turn-offs, the voltage of its output is respectively 1.8V or 3.0V, is used for the SIM card of 1.8V and the SIM card of 3.0V.
The embodiment of the invention also provides a kind of portable terminal that comprises data card, and described terminal comprises the power control that the embodiment of the invention provides, in view of this structure in above existing detailed description, repeat no more herein.
The embodiment of the invention is that the first electricity consumption module that the electric current demand is bigger in the data card is powered by the DC/DC module, with the LDO module the second smaller electricity consumption module of electric current demand in the data card is powered, scheme is simple and practical, not only satisfy different SIM card power requirement, and saved the cost of data card and complete machine greatly.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (10)
1. the power control of a data card is characterized in that, described device comprises DC/DC module and LDO module;
Wherein, described DC/DC module is used for the first bigger electricity consumption module of described data card electric current demand is powered;
Described LDO module is used for the second smaller electricity consumption module of described data card electric current demand is powered.
2. the power control of data card as claimed in claim 1 is characterized in that, the described first electricity consumption module comprises: the core voltage of the BB of described data card and MEMORY module.
3. the power control of data card as claimed in claim 1 is characterized in that, the described second electricity consumption module comprises: the mimic channel of the BB of described data card, peripheral components, I/O module, TCXO crystal oscillator module and USB PHY module;
The described second electricity consumption module also comprises radio-frequency module, T-FLASH and SIM card.
4. the power control of data card as claimed in claim 1 is characterized in that, described device also comprises GPIO, and described GPIO connects described LDO, and described LDO realizes switch by described GPIO.
5. the power control of data card as claimed in claim 1 is characterized in that, described device also comprises metal-oxide-semiconductor, includes a scalable LDO among the described LDO, and described metal-oxide-semiconductor connects described scalable LDO, is used to realize the connection of control circuit.
6. a portable terminal that comprises data card is characterized in that, described terminal comprises a power control, and described device comprises DC/DC module and LDO module;
Wherein, described DC/DC module is used for the first bigger electricity consumption module of described data card electric current demand is powered;
Described LDO module is used for the second smaller electricity consumption module of described data card electric current demand is powered.
7. the portable terminal that comprises data card as claimed in claim 6 is characterized in that, the described first electricity consumption module comprises: the core voltage of the BB of described data card and MEMORY module.
8. the portable terminal that comprises data card as claimed in claim 6 is characterized in that, the described second electricity consumption module comprises: the mimic channel of the BB of described data card, peripheral components, I/O module, TCXO crystal oscillator module and USB PHY module;
The described second electricity consumption module also comprises radio-frequency module, T-FLASH and SIM card.
9. the portable terminal that comprises data card as claimed in claim 6 is characterized in that described device also comprises GPIO, and described GPIO connects described LDO, and described LDO realizes switch by described GPIO.
10. the portable terminal that comprises data card as claimed in claim 6 is characterized in that described device also comprises metal-oxide-semiconductor, includes a scalable LDO among the described LDO, and described metal-oxide-semiconductor connects described scalable LDO, is used to realize the connection of control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102367996A CN101950372B (en) | 2010-07-23 | 2010-07-23 | Mobile terminal containing data card and power-supply control unit thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102367996A CN101950372B (en) | 2010-07-23 | 2010-07-23 | Mobile terminal containing data card and power-supply control unit thereof |
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| CN101950372A true CN101950372A (en) | 2011-01-19 |
| CN101950372B CN101950372B (en) | 2013-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102367996A Active CN101950372B (en) | 2010-07-23 | 2010-07-23 | Mobile terminal containing data card and power-supply control unit thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013104292A1 (en) * | 2012-01-09 | 2013-07-18 | 华为终端有限公司 | Terminal power supply circuit and multi-mode data card |
| CN105376420A (en) * | 2014-08-29 | 2016-03-02 | 展讯通信（上海）有限公司 | System and method for saving power consumption of SIM card in sleep mode |
| CN113362639A (en) * | 2021-05-25 | 2021-09-07 | 电子科技大学 | Low-power consumption monitoring system and network scheduling method thereof |
| CN114721453A (en) * | 2022-04-19 | 2022-07-08 | 广东电网有限责任公司 | Temperature and humidity control system of intelligent terminal cabinet of transformer substation |
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| CN101312351A (en) * | 2008-05-29 | 2008-11-26 | 北京创毅视讯科技有限公司 | Power supply unit of low noise amplifier in mobile multimedia broadcast receiver |
| CN201251932Y (en) * | 2008-09-09 | 2009-06-03 | 上海摩波彼克半导体有限公司 | Power supply system structure for SDIO card of hand device |
| CN101694596A (en) * | 2009-10-29 | 2010-04-14 | 深圳华为通信技术有限公司 | Power supply chip of data card and data card |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101312351A (en) * | 2008-05-29 | 2008-11-26 | 北京创毅视讯科技有限公司 | Power supply unit of low noise amplifier in mobile multimedia broadcast receiver |
| CN201251932Y (en) * | 2008-09-09 | 2009-06-03 | 上海摩波彼克半导体有限公司 | Power supply system structure for SDIO card of hand device |
| CN101694596A (en) * | 2009-10-29 | 2010-04-14 | 深圳华为通信技术有限公司 | Power supply chip of data card and data card |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013104292A1 (en) * | 2012-01-09 | 2013-07-18 | 华为终端有限公司 | Terminal power supply circuit and multi-mode data card |
| CN105376420A (en) * | 2014-08-29 | 2016-03-02 | 展讯通信（上海）有限公司 | System and method for saving power consumption of SIM card in sleep mode |
| CN105376420B (en) * | 2014-08-29 | 2019-07-23 | 展讯通信（上海）有限公司 | Save the system and method for SIM card sleep state power consumption |
| CN113362639A (en) * | 2021-05-25 | 2021-09-07 | 电子科技大学 | Low-power consumption monitoring system and network scheduling method thereof |
| CN113362639B (en) * | 2021-05-25 | 2022-11-25 | 电子科技大学 | Low-power consumption monitoring system and network scheduling method thereof |
| CN114721453A (en) * | 2022-04-19 | 2022-07-08 | 广东电网有限责任公司 | Temperature and humidity control system of intelligent terminal cabinet of transformer substation |
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| Publication number | Publication date |
|---|---|
| CN101950372B (en) | 2013-12-11 |
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Effective date of registration: 20201229 Address after: 225700 No. 1 Chuang Road, Zhaoyang street, Xinghua, Taizhou, Jiangsu. Patentee after: XINGHUA TIANDONG SOFTWARE TECHNOLOGY Co.,Ltd. Address before: 511400 No.106 Fengze East Road, Nansha District, Guangzhou City, Guangdong Province (self compiled Building 1) x1301-a4845 (cluster registration) (JM) Patentee before: Guangzhou shengxia Intellectual Property Operation Co.,Ltd. Effective date of registration: 20201229 Address after: 511400 No.106 Fengze East Road, Nansha District, Guangzhou City, Guangdong Province (self compiled Building 1) x1301-a4845 (cluster registration) (JM) Patentee after: Guangzhou shengxia Intellectual Property Operation Co.,Ltd. Address before: 516006 TCL mobile communication company, No. 23 residential district, Huizhou hi tech Development Zone, Huicheng District, Guangdong Patentee before: HUIZHOU TCL MOBILE COMMUNICATION Co.,Ltd. |
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