CN107357413A - A kind of method for effectively reducing adapter end power consumption under computer shutdown state - Google Patents
A kind of method for effectively reducing adapter end power consumption under computer shutdown state Download PDFInfo
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- CN107357413A CN107357413A CN201710586852.7A CN201710586852A CN107357413A CN 107357413 A CN107357413 A CN 107357413A CN 201710586852 A CN201710586852 A CN 201710586852A CN 107357413 A CN107357413 A CN 107357413A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
- G06F1/3287—Power saving characterised by the action undertaken by switching off individual functional units in the computer system
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- Computer Hardware Design (AREA)
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- General Physics & Mathematics (AREA)
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Abstract
The present invention provides a kind of method for effectively reducing adapter end power consumption under computer shutdown state, belong to field of computer technology, the present invention adds a switch K5 between DCSUM and SYS_LOAD, and notebook quiescent dissipation is reduced by controlling K5 to disconnect in the power-offstate.This method can not only realize the functions such as the normal boot-strap of computer, shutdown, sleep, wake-up, and can also be effectively reduced computer adapter end power consumption in the power-offstate.
Description
Technical field
The present invention relates to adapter end power consumption under computer technology, more particularly to a kind of effectively reduction computer shutdown state
Method.
Background technology
In common notebook electric power system, DCIN is notebook DC supply input, and anti-surge circuit is to notebook
Play a protective role, the stabilization of supply voltage is realized by DC/DC mu balanced circuits, and can be charged by this circuit regulating cell
Voltage, and then the charging voltage selection of 3 strings or 4 string batteries is realized, wherein K1, K2, K3 are controlled by charging management chip, and control is patrolled
Collect as follows：
1）, in the presence of only adapter, K1 closure, K2, K3 disconnect, now system power supply is supplied by adapter；
2）, in the presence of only battery, K3 closure, K2, K1 disconnect, now system power supply is by battery supplied；
3）, when adapter and battery simultaneously in the presence of, charging management chip can carry out charging selection according to battery electric quantity, now such as
Fruit battery electric quantity reaches rechargeable standard, then K1, K2 are closed, and K3 disconnects, and adapter had not only charged the battery but also to system power supply, if
Battery electric quantity is not up to rechargeable standard, then K1 is closed, and K2, K3 disconnect, and adapter only gives system power supply.
Now external power source be present（Adapter or battery）When, EC in notebook（Embbeded Controller）
All the time normal operating conditions is in, EC controls by detecting the Signal-controlled switch such as starting key K4 disconnection and closure
The switching on and shutting down of notebook.It is described below how it realizes start, shutdown, standby and arousal function.
Start：When notebook is in off-mode, internal EC is operated by hardware circuit and software detection starting key, this
When EC controlling switches K4（K4 includes the switch of many different circuits in practice, and certain upper electricity be present between these switches
Sequential）According to certain closing in sequence, the start process of notebook is completed.
Shutdown：When notebook is in open state, internal EC by hardware circuit and software detection machine shutdown order, this
When EC disconnected by controlling switch K4 according to certain sequential, complete the shutdown process of notebook.
It is standby：When notebook is in open state, internal EC is by hardware circuit and software detection standby command, now EC
By controlling switch K4 according to it is certain when preamble section disconnect, complete the standby of notebook.
Wake up：When notebook is in holding state, internal EC is by hardware circuit and software detection wake command, now EC
Closed by controlling switch K4 according to certain sequential, complete the wakeup process of notebook.
It is very low that although there is EC the functions such as sleep drop to its power consumption, because power conversion chip has work(in itself
Consumption, therefore the quiescent dissipation for reducing notebook turns into existing problem.
The content of the invention
In order to solve problem above, the present invention proposes adapter end power consumption under a kind of effectively reduction computer shutdown state
Method, to reduce the quiescent dissipation of computer.
It is a kind of effectively reduce computer shutdown state under adapter end power consumption method, DCSUM and SYS_LOAD it
Between addition one switch K5, by control K5 to disconnect in the power-offstate reduce notebook quiescent dissipation.
K5 implementation：Wherein SW1 is notebook starting key, and MOS1 is P-Channel metal-oxide-semiconductors, MOS2, MOS3
For N-Channel metal-oxide-semiconductors, signal " EC_EN ", " EC_DET " are respectively connecting on EC pins；It is achieved in starting shooting, shuts down, treats
Machine and arousal function.
Start：When pressing starting key, electric capacity C1 quick charges to VBAT-MOS3 conductings-POWER_EN signals become
Low-MOS1 is turned on, and now SYS_LOAD is converted to 3.3V by power conversion chip and powered to EC, is set just in EC firmwares
EC_EN is high level after beginningization, and now SW1 can discharge automatically, due to there is the above-mentioned power up of the presence of EC_EN signals still to deposit
Its initialization is being set in EC firmwares and is entering the power up function that start sequential can complete notebook afterwards.
Shutdown：EC_EN signals are connected to an EC pin, EC this pin has not to work and upper electricity in EC
The characteristics of being high-impedance state after initialization, when notebook performs shutdown process, the system for the treatment of has been switched off, and now EC passes through control
EC_EN is arranged to high-impedance state-MOS2 shut-offs-POWER_EN signals step-down-MOS1 shut-offs, now completes the shutdown behaviour of complete machine
Make.
It is standby：Under open state, when starting key is pressed in user's definition performs idle function, EC is by detecting EC_
The level of DET signal from it is low be changed into it is high be changed into low high impulse when, perform corresponding idle function.
Wake up：In the standby state, when starting key is pressed in user's definition performs arousal function, EC is by detecting EC_
The level of DET signal from it is low be changed into it is high be changed into low high impulse when, perform corresponding arousal function.
The beneficial effects of the invention are as follows
This method can not only realize the functions such as the normal boot-strap of computer, shutdown, sleep, wake-up, and can also be effectively reduced
Computer adapter end power consumption in the power-offstate.
Brief description of the drawings
Fig. 1 be the present invention realize schematic diagram；
Fig. 2 is the circuit theory diagrams of the present invention；
Fig. 3 is that VBAT realizes circuit diagram in circuit theory diagrams.
Embodiment
More detailed elaboration is carried out to present disclosure below：
As shown in figure 1, the method proposed by the present invention for reducing adapter end power consumption under computer shutdown state, in DCSUM and
A switch K5 is added between SYS_LOAD, notebook quiescent dissipation is reduced by controlling K5 to disconnect in the power-offstate.
K5 specific implementation is switched as shown in Fig. 2 wherein SW1 is notebook starting key, MOS1 P-Channel
Metal-oxide-semiconductor, MOS2, MOS3 are N-Channel metal-oxide-semiconductors, and signal " EC_EN ", " EC_DET " are respectively connecting on EC pins, below
How introduction realizes start, shutdown, standby and arousal function.
Start：When pressing starting key, electric capacity C1 quick charges to VBAT-MOS3 conductings-POWER_EN signals become
Low-MOS1 is turned on, and now SYS_LOAD is converted to 3.3V by power conversion chip and powered to EC, is set just in EC firmwares
EC_EN is high level after beginningization, and now SW1 can discharge automatically, due to there is the above-mentioned power up of the presence of EC_EN signals still to deposit
Its initialization is being set in EC firmwares and is entering the power up function that start sequential can complete notebook afterwards.
Shutdown：EC_EN signals are connected to an EC pin, EC this pin has not to work and upper electricity in EC
The characteristics of being high-impedance state after initialization, when notebook performs shutdown process, the system for the treatment of has been switched off, and now EC passes through control
EC_EN is arranged to high-impedance state-MOS2 shut-offs-POWER_EN signals step-down-MOS1 shut-offs, now completes the shutdown behaviour of complete machine
Make.
It is standby：Under open state, when starting key is pressed in user's definition performs idle function, EC is by detecting EC_
The level of DET signal from it is low be changed into it is high be changed into low high impulse when, perform corresponding idle function.
Wake up：In the standby state, when starting key is pressed in user's definition performs arousal function, EC is by detecting EC_
The level of DET signal from it is low be changed into it is high be changed into low high impulse when, perform corresponding arousal function.
VBAT can understand it in standby shape by circuit realiration as shown in Figure 3 by MAX1776 chips handbook in schematic diagram
State（Chip is standby）Lower power consumption is only 16uA, due under notebook off-mode in addition to charge management circuit only this part
Circuit works, therefore the quiescent dissipation of notebook will be changed into uA levels, and this will greatly prolong the storage time of notebook.
Claims (6)
- A kind of 1. method for effectively reducing adapter end power consumption under computer shutdown state, it is characterised in thatA switch K5 is added between DCSUM and SYS_LOAD, by controlling K5 to disconnect in the power-offstate to reduce Notebook quiescent dissipation.
- 2. according to the method for claim 1, it is characterised in thatK5 implementation：Wherein SW1 is notebook starting key, and MOS1 is P-Channel metal-oxide-semiconductors, MOS2, MOS3 N- Channel metal-oxide-semiconductors, signal " EC_EN ", " EC_DET " are respectively connecting on EC pins；Be achieved in starting shooting, shut down, it is standby with And arousal function.
- 3. according to the method for claim 2, it is characterised in thatStart：When pressing starting key, electric capacity C1 quick charges to VBAT-MOS3 conductings-POWER_EN signals step-down- MOS1 is turned on, and now SYS_LOAD is converted to 3.3V by power conversion chip and powered to EC, and initialization is set in EC firmwares EC_EN is high level afterwards, and now SW1 can discharge automatically, due to there is the above-mentioned power up of the presence of EC_EN signals still to exist, Its initialization is set in EC firmwares can complete the power up function of notebook into start sequential afterwards.
- 4. according to the method for claim 3, it is characterised in thatShutdown：EC_EN signals are connected to an EC pin, EC this pin has not to work and upper electricity is initial in EC The characteristics of being high-impedance state after change, when notebook performs shutdown process, the system for the treatment of has been switched off, and now EC is by controlling EC_EN High-impedance state-MOS2 shut-offs-POWER_EN signals step-down-MOS1 shut-offs are arranged to, now complete the power-off operation of complete machine.
- 5. according to the method for claim 3, it is characterised in thatIt is standby：Under open state, when starting key is pressed in user's definition performs idle function, EC is believed by detecting EC_DET Number level from it is low be changed into it is high be changed into low high impulse when, perform corresponding idle function.
- 6. according to the method for claim 5, it is characterised in thatWake up：In the standby state, when starting key is pressed in user's definition performs arousal function, EC is believed by detecting EC_DET Number level from it is low be changed into it is high be changed into low high impulse when, perform corresponding arousal function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710586852.7A CN107357413A (en) | 2017-07-18 | 2017-07-18 | A kind of method for effectively reducing adapter end power consumption under computer shutdown state |
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| CN201710586852.7A CN107357413A (en) | 2017-07-18 | 2017-07-18 | A kind of method for effectively reducing adapter end power consumption under computer shutdown state |
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| CN107357413A true CN107357413A (en) | 2017-11-17 |
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| CN201710586852.7A Pending CN107357413A (en) | 2017-07-18 | 2017-07-18 | A kind of method for effectively reducing adapter end power consumption under computer shutdown state |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111045506A (en) * | 2019-12-30 | 2020-04-21 | 联想(北京)有限公司 | Control method and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2779456Y (en) * | 2005-01-20 | 2006-05-10 | 英业达股份有限公司 | Electrical power control unit (EPCU) with reduced shutdown power consumption |
| CN101135890A (en) * | 2007-10-09 | 2008-03-05 | 深圳市和而泰电子科技有限公司 | Electricity-saving mode power management system and method thereof |
| US20080148082A1 (en) * | 2006-12-13 | 2008-06-19 | Compal Electronics, Inc. | Power control system and method |
| CN103457586A (en) * | 2013-08-08 | 2013-12-18 | 南京熊猫电子股份有限公司 | Method for achieving electronic device shutdown zero power consumption |
| CN103529725A (en) * | 2013-07-29 | 2014-01-22 | 南京熊猫电子股份有限公司 | Startup and shutdown circuit capable of realizing zero-power consumption shutdown |
-
2017
- 2017-07-18 CN CN201710586852.7A patent/CN107357413A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2779456Y (en) * | 2005-01-20 | 2006-05-10 | 英业达股份有限公司 | Electrical power control unit (EPCU) with reduced shutdown power consumption |
| US20080148082A1 (en) * | 2006-12-13 | 2008-06-19 | Compal Electronics, Inc. | Power control system and method |
| CN101135890A (en) * | 2007-10-09 | 2008-03-05 | 深圳市和而泰电子科技有限公司 | Electricity-saving mode power management system and method thereof |
| CN103529725A (en) * | 2013-07-29 | 2014-01-22 | 南京熊猫电子股份有限公司 | Startup and shutdown circuit capable of realizing zero-power consumption shutdown |
| CN103457586A (en) * | 2013-08-08 | 2013-12-18 | 南京熊猫电子股份有限公司 | Method for achieving electronic device shutdown zero power consumption |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111045506A (en) * | 2019-12-30 | 2020-04-21 | 联想(北京)有限公司 | Control method and electronic equipment |
| CN111045506B (en) * | 2019-12-30 | 2021-07-16 | 联想(北京)有限公司 | Control method and electronic equipment |
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Application publication date: 20171117 |