CN108173424A - A kind of portable device supply power soft switch system - Google Patents
A kind of portable device supply power soft switch system Download PDFInfo
- Publication number
- CN108173424A CN108173424A CN201711421802.XA CN201711421802A CN108173424A CN 108173424 A CN108173424 A CN 108173424A CN 201711421802 A CN201711421802 A CN 201711421802A CN 108173424 A CN108173424 A CN 108173424A
- Authority
- CN
- China
- Prior art keywords
- mcu
- switch
- converter
- portable device
- connect
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/36—Means for starting or stopping converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0032—Control circuits allowing low power mode operation, e.g. in standby mode
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0048—Circuits or arrangements for reducing losses
- H02M1/0054—Transistor switching losses
- H02M1/0058—Transistor switching losses by employing soft switching techniques, i.e. commutation of transistors when applied voltage is zero or when current flow is zero
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The present invention relates to power switch fields, disclose a kind of portable device supply power soft switch system, solve the problems, such as that the supply power soft switch of current portable device is difficult to realize low-power consumption standby requirement.The present invention includes power supply, DC-DC converter, touch-switch, diode, MCU, first resistor and second resistance；Input terminal of the power supply respectively with the input terminal of DC DC converters, touch-switch is connect, the output terminal of DC DC converters and the supply pin of MCU connect, the one end of the Enable Pin of DC DC converters respectively with the detection foot of MCU, one end of first resistor, second resistance is connect, the I/O mouths of MCU are connect with the anode of diode, the other end of the cathode of diode respectively with the output terminal of touch-switch, first resistor is connect, the other end ground connection of second resistance.The present invention is suitable for portable device.
Description
Technical field
The present invention relates to power switch field, more particularly to a kind of portable device supply power soft switch system.
Background technology
The features such as portable device is with easy to carry, using flexible, is increasingly paid attention to by people.And portable device
Switch is also varied, in equipment earlier, mostly using mechanical switch.With the development of electronic technology, new product constantly gushes
Existing, management and switch designs for power supply provide more more options.The design of general supply power soft switch, DC-DC turns when standby
Parallel operation and microprocessor are all in working condition, it is difficult to realize the requirement of portable device low-power consumption standby.
Invention content
The technical problem to be solved by the present invention is to：A kind of portable device supply power soft switch system is provided, is solved at present just
The supply power soft switch of portable device is difficult to realize the problem of low-power consumption standby requirement.
To solve the above problems, the technical solution adopted by the present invention is：A kind of portable device supply power soft switch system, packet
Include power supply, DC-DC converter, touch-switch, diode, MCU, first resistor and second resistance；Power supply turns respectively with DC-DC
The input terminal connection of the input terminal, touch-switch of parallel operation, the output terminal of DC-DC converter and the supply pin of MCU connect, DC-DC
The one end of the Enable Pin of converter respectively with the detection foot of MCU, one end of first resistor, second resistance is connect, the I/O mouths of MCU
It being connect with the anode of diode, the other end of the cathode of diode respectively with the output terminal of touch-switch, first resistor is connect, and
The other end ground connection of two resistance.
Further, when MCU is in running order, the I/O mouths of MCU export high level, while the detection foot of MCU is examined in real time
The voltage value of the Enable Pin of DC-DC converter is surveyed, if the detection foot of MCU detects the voltage value of Enable Pin higher than threshold value, MCU
I/O mouths output low level.
The beneficial effects of the invention are as follows：The present invention uses the microprocessor of DC-DC electric pressure converters and portable device in itself
Device realizes the Sofe Switch design of power supply, is particularly suitable for the portable device using battery, and when standby, microprocessor is in not
Working condition, DC-DC converter is also at non-working condition, therefore stand-by power consumption is extremely low, can realize wanting for low-power consumption standby
It asks.
Description of the drawings
Fig. 1 is the structure diagram of embodiment.
It is numbered in figure：P is power supply, and S is touch-switch, and D is diode, and R1 is first resistor, and R2 is second resistance, and IN is
The input terminal of DC-DC converter, VOUT are the output terminal of DC-DC converter, and EN is the Enable Pin of DC-DC converter, and VDD is
The supply pin of MCU, ADC are the detection foot of MCU, and I/O is the I/O mouths of MCU, and GND is ground.
Specific embodiment
As shown in Figure 1, embodiment provides a kind of portable device supply power soft switch system, converted including power supply P, DC-DC
Device, touch-switch S, diode D, MCU (i.e. microprocessor), first resistor R1 and second resistance R2；Power supply P respectively with DC-
The input terminal connection of the input terminal IN, touch-switch S of DC converters, the supply pin of the output terminal VOUT and MCU of DC-DC converter
VDD connections, the Enable Pin EN of DC-DC converter respectively with detection foot ADC, one end of first resistor R1, the second resistance R2 of MCU
One end connection, the I/O mouths of MCU connect with the anode of diode D, the cathode output with touch-switch S respectively of diode D
End, the other end connection of first resistor R1, the other end ground connection GND of second resistance R2.
Program as being loaded to above-mentioned MCU：When MCU is in running order, the I/O mouths output of MCU is high
Level, while the detection foot ADC of MCU detects the voltage value of the Enable Pin EN of DC-DC converter in real time, if the detection foot ADC of MCU
Detect I/O mouth output low level of the voltage value higher than threshold value, then MCU of the Enable Pin EN of DC-DC converter.
Embodiment booting, the realization method of shutdown are as follows：
The realization of booting：After pressing touch-switch S, power supply accesses after first resistor R1 and second resistance R2 partial pressures
The Enable Pin EN of DC-DC converter, DC-DC converter is started to work at this time, while MCU also begins to work, and the I/O mouths of MCU are defeated
Go out high level, after then touch-switch S is disconnected, I/O mouths of MCU output high level is after diode, through first resistor R1 and the
The Enable Pin EN of DC-DC converter is accessed after two resistance R2 partial pressures, DC-DC converter works on, and microprocessor also continues to work
Make, realize booting.
The realization of shutdown：When system is in running order, after pressing touch-switch S, the detection foot ADC of MCU is detected
The voltage value of the Enable Pin EN of DC-DC converter is higher than threshold value, the I/O mouths output low level of MCU, then touch-switch S disconnections
Afterwards, since the Enable Pin EN of DC-DC converter is in low level, DC-DC converter is stopped, and then MCU is also stopped,
Realize shutdown.
Basic principle and main feature the foregoing describe the present invention, the description of specification only illustrate the original of the present invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.
Claims (2)
1. a kind of portable device supply power soft switch system, which is characterized in that including power supply, DC-DC converter, touch-switch,
Diode, MCU, first resistor and second resistance；The power supply input with the input terminal of DC-DC converter, touch-switch respectively
The supply pin of end connection, the output terminal of DC-DC converter and MCU connect, the Enable Pin of DC-DC converter respectively with the inspection of MCU
One end connection of foot, one end of first resistor, second resistance is surveyed, the I/O mouths of MCU are connect with the anode of diode, diode
The other end of the cathode respectively with the output terminal of touch-switch, first resistor is connect, the other end ground connection of second resistance.
2. a kind of portable device supply power soft switch system as described in claim 1, which is characterized in that when MCU is in work
State, the I/O mouths output high level of MCU, while the detection foot of MCU detects the voltage value of the Enable Pin of DC-DC converter in real time,
If the detection foot of MCU detects the voltage value of the Enable Pin of DC-DC converter higher than threshold value, the I/O mouths of MCU export low electricity
It is flat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711421802.XA CN108173424A (en) | 2017-12-25 | 2017-12-25 | A kind of portable device supply power soft switch system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711421802.XA CN108173424A (en) | 2017-12-25 | 2017-12-25 | A kind of portable device supply power soft switch system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108173424A true CN108173424A (en) | 2018-06-15 |
Family
ID=62520345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711421802.XA Pending CN108173424A (en) | 2017-12-25 | 2017-12-25 | A kind of portable device supply power soft switch system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108173424A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113612395A (en) * | 2021-09-06 | 2021-11-05 | 深圳市优优绿能电气有限公司 | Auxiliary power supply circuit with ultralow standby power consumption |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201789480U (en) * | 2010-09-02 | 2011-04-06 | 中兴通讯股份有限公司 | Circuit reusing power on/off key for realizing reset function and portable mobile terminal |
| CN103475377A (en) * | 2013-08-22 | 2013-12-25 | 潍坊歌尔电子有限公司 | Key control system of single-battery power supply system |
| CN203607846U (en) * | 2013-12-20 | 2014-05-21 | 青岛歌尔声学科技有限公司 | Rechargeable battery protection circuit |
| CN104202029A (en) * | 2014-08-29 | 2014-12-10 | 青岛歌尔声学科技有限公司 | Single-button power-on and power-off circuit and head-wearing display device |
| CN105322598A (en) * | 2015-03-28 | 2016-02-10 | 吴嘉懿 | New energy electric appliance capable of recycling electric energy |
| CN106292341A (en) * | 2015-05-14 | 2017-01-04 | 深圳市三诺数字科技有限公司 | A kind of power on/off system and method |
-
2017
- 2017-12-25 CN CN201711421802.XA patent/CN108173424A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201789480U (en) * | 2010-09-02 | 2011-04-06 | 中兴通讯股份有限公司 | Circuit reusing power on/off key for realizing reset function and portable mobile terminal |
| CN103475377A (en) * | 2013-08-22 | 2013-12-25 | 潍坊歌尔电子有限公司 | Key control system of single-battery power supply system |
| CN203607846U (en) * | 2013-12-20 | 2014-05-21 | 青岛歌尔声学科技有限公司 | Rechargeable battery protection circuit |
| CN104202029A (en) * | 2014-08-29 | 2014-12-10 | 青岛歌尔声学科技有限公司 | Single-button power-on and power-off circuit and head-wearing display device |
| CN105322598A (en) * | 2015-03-28 | 2016-02-10 | 吴嘉懿 | New energy electric appliance capable of recycling electric energy |
| CN106292341A (en) * | 2015-05-14 | 2017-01-04 | 深圳市三诺数字科技有限公司 | A kind of power on/off system and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113612395A (en) * | 2021-09-06 | 2021-11-05 | 深圳市优优绿能电气有限公司 | Auxiliary power supply circuit with ultralow standby power consumption |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180615 |