CN101458538A - Method for reducing standby power consumption of power supply system and the power supply system - Google Patents
Method for reducing standby power consumption of power supply system and the power supply system Download PDFInfo
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- CN101458538A CN101458538A CNA2008102412814A CN200810241281A CN101458538A CN 101458538 A CN101458538 A CN 101458538A CN A2008102412814 A CNA2008102412814 A CN A2008102412814A CN 200810241281 A CN200810241281 A CN 200810241281A CN 101458538 A CN101458538 A CN 101458538A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
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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
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- 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
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- 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
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- General Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Power Sources (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a method for reducing electric power source system stand-by power consumption and an electric power source system which are suitable for an electric power source circuit field. The method includes steps as follows: when a non-continuous stand-by detect and control circuit unit needs to monitor, detect or awake the system, existing or increased biasing current in the non-continuous stand-by and control circuit unit is controlled for monitoring, detecting or awaking the system; when the non-continuous stand-by detect and control circuit unit needs not to monitor, detect or awake the system, biasing current in the non-continuous stand-by detect and control unit is cut off or reduced. The method provided by the invention divides the stand-by mode detect and control circuit unit, and modulates stand-by power consumption of the non-continuous stand-by detect and control circuit unit that needs not to monitor, detect or awake the electric power source continuously, accordingly, average stand-by power consumption of the whole electric power source system is reduces, and working life of battery is prolonged or the product is energy saving.
Description
Technical field
The invention belongs to the power circuit field, relate in particular to a kind of method and power-supply system that reduces standby power consumption of power supply system.
Background technology
The effect of power-supply system is that the voltage source of the fluctuation of input is controlled through effective, provide the source of stable pressure of a pre-sizing to load, power-supply system can combine for a kind of in Switching Power Supply, linear adjustment pipe and the charge pump or by wherein multiple power supply type.
The conversion efficiency of power-supply system is the function of its load current size, in general, under light load condition, along with reducing of load current, it is increasing that the power consumption of power-supply system itself accounts for the proportion of total system power consumption, causes the conversion efficiency of power-supply system more and more lower.Therefore for reducing the power consumption of power-supply system under the underload itself, generally require power-supply system to be in standby mode or sleep pattern, under this pattern, power-supply system overwhelming majority module is in closed condition, have only the less circuit module of some power consumption to work always, be used for monitoring, detect or wake up power-supply system, this moment, the power consumption of whole power-supply system was called stand-by power consumption.
For battery-powered portable product, power-supply system the time under the underload work far more than the time of under medium or heavy duty, working, so the stand-by power consumption of power-supply system has just determined the serviceable life of battery.In addition, along with more and more higher, the concern of the standby power consumption of power supply system of non-powered battery product is also increased day by day the energy-conservation and environmental protection requirement of product.Therefore be in standby or sleep pattern following time when power-supply system, should guarantee to be used to the normal accurately work of circuit module monitoring, detect or wake up, reduce its stand-by power consumption again as far as possible, with prolongation battery serviceable life or energy-conservation.
Fig. 1 shows the framework of the power-supply system 1 of existing low power dissipation design, standby mode detects and control circuit 11 is used for continuous detecting power-supply system outside or internal signal input status under the power-supply system ideal case, then testing result is handled and exported control signal; Normal mode detects and control circuit 12 is used for detecting outside or internal signal input status after power-supply system withdraws from standby mode and enters normal mode of operation, then testing result is handled and exported control signal; Other devices and circuit part 13 are other necessary part of power-supply system, power switch pipe etc. for example, also can comprise battery charging module, its duty is subjected to the control of the control signal of standby mode detection and control circuit 11 and normal mode detection and control circuit 12 outputs fully, is used for the needed supply voltage of generation system; Wherein during system's operate as normal, normal mode detects and control circuit 12 sends reset signal or sends other control signal further to reduce the bias current of some circuit unit in standby mode detection and the control circuit 11 to standby mode detection and control circuit 11, thereby the power consumption when reducing the power-supply system operate as normal, normal mode detection and control circuit 12 can not send any signal to standby mode detection and control circuit 11 yet certainly; Be in the power-supply system of holding state, when standby mode detects and control circuit 11 receives external input signal, when needing the power-supply system operate as normal, standby mode detects and control circuit 11 sends enable signal to normal mode detection and control circuit 12, normal mode is detected and control circuit 12 operate as normal, certainly standby mode detection and control circuit 11 can not send any signal to normal mode detection and control circuit 12 yet, and the enable signal of normal mode detection and control circuit 12 is provided by the input signal of power-supply system.
Existing power-supply system low power dissipation design all is to detect and the circuit unit of control circuit 11 inside improves at standby mode among Fig. 1, under the prerequisite that satisfies systemic-function and performance, by reducing the bias current of some circuit unit, reach the purpose that reduces standby power consumption of power supply system.Though some the circuit unit bias current in standby mode detection and the control circuit 11 is lowered, in whole stand-by time, there is the bias current of can not ignore after all, also just always in power consumption always.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of method and power-supply system that reduces standby power consumption of power supply system, do not need system was monitored or in time period of detecting to be implemented in, the relevant detection circuit is closed or reduce electric current, and then further reduce the stand-by power consumption of power-supply system.
The embodiment of the invention provides a kind of power-supply system, comprising:
Normal mode detects and control circuit, is used for after power-supply system enters normal mode of operation, detects the input status of outside or internal signal, and control signal is handled and exported to testing result;
Standby mode detects and control circuit, be used for detecting under the power-supply system ideal case input status of power-supply system outside or internal signal, then testing result is handled and exported control signal;
Described standby mode detects and control circuit further comprises:
One or more discontinuous standby modes detect and control circuit unit, be used for system's discontinuity is monitored, detected or wake up, when described circuit unit need be monitored, detect system or wake up, described circuit unit Be Controlled exists or the increase bias current, when described circuit unit did not need system monitored, detects or wake up, its bias current Be Controlled was turn-offed or is reduced;
One or more continuous standby modes detect and control circuit unit, are used for system is monitored continuously, detects or wakes up.
Further, described one or more discontinuous standby modes detections and control circuit unit are by the break-make or the variation of pulse enable signal controlling bias current, to realize system's discontinuity monitoring, to detect or wake up.
Further, described pulse enable signal is produced by a pulse-generating circuit, and described pulse-generating circuit is independent of outside the described power-supply system.
Further, described pulse enable signal is produced by a pulse-generating circuit, and described pulse-generating circuit is built among described standby mode detection and the control circuit.
Further, described discontinuous standby mode detection and control circuit unit comprise:
At least two cascaded flip-flops are used for the pulse enable signal of input is carried out the frequency division processing;
One with door, be used for the output frequency division signal of first trigger of described at least two cascaded flip-flops and the output frequency division signal of last trigger are carried out logic and operation; And
Discontinuous standby mode detects and control module, is used under described signal with door computing output is modulated system's discontinuity being monitored, being detected or wake up.
Further, described discontinuous standby mode detection and control circuit unit comprise:
One or more cascaded flip-flops is used for the pulse enable signal of input is carried out the frequency division processing;
One with door, be used for the pulse enable signal that output frequency division signal and described one or more cascaded flip-flops to last trigger of described one or more cascaded flip-flops receive and carry out logic and operation; And
Discontinuous standby mode detects and control module, is used under described signal with door computing output is modulated system's discontinuity being monitored, being detected or wake up.
In the embodiment of the invention, standby mode detection and control circuit are divided, do not modulate wherein not needing the discontinuous stand-by power consumption of machine testing and control circuit unit for the treatment of power-supply system is monitored continuously, detected or wakes up, thereby reduce the average stand-by power consumption of whole power-supply system, prolong battery serviceable life or make product energy-conservation.
The embodiment of the invention also provides a kind of method that reduces standby power consumption of power supply system, said method comprising the steps of:
, control discontinuous treating and exist in machine testing and the control circuit unit or increase bias current, when treating that machine testing and control circuit unit need be monitored, detect system or wake up when discontinuous so that system is monitored, detects or wakes up;
When discontinuous when treating that machine testing and control circuit unit do not need system monitored, detects or wake up, turn-off or reduce the discontinuous bias current that exists in machine testing and the control circuit unit treated.
Further, described method is by discontinuous break-make or the variation for the treatment of machine testing and control circuit unit bias current of pulse enable signal controlling.
Further, described method uses set of pulses enable signal that consistent at interval a plurality of discontinuous machine testing and the control circuit unit treated of monitoring, detection or wakeup time unified control.
Description of drawings
Fig. 1 is the configuration diagram of the power-supply system of existing low power dissipation design;
Fig. 2 is the realization flow figure of the method for the reduction standby power consumption of power supply system that provides of the embodiment of the invention;
Fig. 3 be the embodiment of the invention provide to the discontinuous waveform synoptic diagram for the treatment of the pulse enable signal that machine testing and control circuit are controlled;
Fig. 4 is the discontinuous stand-by power consumption waveform for the treatment of machine testing and control circuit unit of pulse enable signal 1 control among Fig. 3;
Fig. 5 is the structure principle chart of the power-supply system that provides of the embodiment of the invention;
Fig. 6 is the structure principle chart of power-supply system that pulse-generating circuit among Fig. 5 is built-in;
Fig. 7 is discontinuous a kind of structure principle chart for the treatment of machine testing and control circuit unit that the embodiment of the invention provides;
Fig. 8 is the discontinuous another kind of structure principle chart for the treatment of machine testing and control circuit unit that the embodiment of the invention provides.
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.
In the embodiment of the invention, standby mode detection and control circuit are divided, the stand-by power consumption of the circuit unit that wherein do not need power-supply system is monitored continuously, detected or wakes up is modulated.
Fig. 2 shows the realization flow of the method for the reduction standby power consumption of power supply system that the embodiment of the invention provides, and details are as follows.
In step S201, when treating that machine testing and control circuit unit need be monitored, detect system or wake up, control discontinuous treating and exist in machine testing and the control circuit unit or increase bias current, so that system is monitored, detects or wakes up when discontinuous.
In step S202, when discontinuous when treating that machine testing and control circuit unit do not need system monitored, detects or wake up, turn-off or reduce the discontinuous bias current that exists in machine testing and the control circuit unit treated.
Treat that each circuit unit in machine testing and the control circuit can be divided into according to function and treat machine testing and control circuit unit and discontinuous two types of machine testing and the control circuit unit for the treatment of continuously, in the embodiment of the invention, treat that at discontinuous machine testing and control circuit unit do not need system is monitored continuously, the characteristic that detects or wake up, control discontinuous break-make or the size for the treatment of machine testing and control circuit unit bias current in good time, only need monitor system in discontinuous machine testing and the control circuit unit treated, when detecting or waking up, just control has bias current or increases bias current, and treat that discontinuous machine testing and control circuit unit do not need system is monitored, when detecting or waking up, reduce even turn-off bias current input, thereby the discontinuous power consumption of machine testing and control circuit unit for the treatment of reduces greatly in this period, and the stand-by power consumption of whole power-supply system also can reduce.
With battery powered portable product is example, when being in holding state, also needs power-supply system that battery status is detected.Whether excessively low, if cell voltage is low excessively, the power control circuit module will be sent low electric caution signal to system such as system if need detect cell voltage.According to the battery self character as can be known, battery for normal use, its magnitude of voltage decline rate is very slow, thereby in many application scenarios, whether there is no need the continuous detecting cell voltage low excessively, whether permission just detects one-shot battery voltage every 1 second or a few second low excessively, that is to say and be used to detect cell voltage whether low excessively circuit module does not need continuous working, its permission was just worked once every 1 second or a few second, in the interval time in this 1 second or several seconds, whether low excessively circuit module can be closed or reduce its bias current to be used to detect cell voltage, has so just significantly reduced the average power consumption of this detection module.
In the embodiment of the invention, control the discontinuous break-make for the treatment of machine testing and control circuit unit bias current by the pulse enable signal, and use set of pulses enable signal to monitoring, consistent at interval a plurality of discontinuous machine testing and the control circuit unit treated of detection or wakeup time unified control, as shown in Figure 3, pulse enable signal 1 is used for wherein one group of monitoring of control, detect or consistent a plurality of discontinuous machine testing and the control circuit unit treated in wakeup time interval, and pulse enable signal 2 is used for wherein another group monitoring of control, detect or consistent a plurality of discontinuous machine testing and the control circuit unit treated in wakeup time interval, can adopt pulse-generating circuit to realize during concrete enforcement, this pulse-generating circuit both can be subjected to the control of other circuit and produce enable signal in the arteries and veins, also control circuit can not had and generation voluntarily, as random signal generator etc., and according to the group number of actual conditions configuration pulse enable signal.
Fig. 4 shows the discontinuous stand-by power consumption waveform for the treatment of machine testing and control circuit unit by 1 control of pulse enable signal among Fig. 3 that the embodiment of the invention provides, and treats that by pulse enable signal 2 the discontinuous of control the stand-by power consumption waveform principle of machine testing and control circuit unit is identical.With reference to Fig. 4, when pulse enable signal 1 is high level, corresponding non continuous treats that machine testing and control circuit unit are enabled or increase bias current, thereby it can be monitored, detect or wake up system quickly and accurately, and this period, the discontinuous stand-by power consumption of machine testing and control circuit unit for the treatment of was directly proportional with the high level time length of pulse enable signal 1; When pulse enable signal 1 was low level, the discontinuous bias current for the treatment of in machine testing and the control circuit unit was turned off or reduces, thereby the discontinuous stand-by power consumption of machine testing and control circuit unit for the treatment of almost can be ignored in this period.Discontinuous machine testing and the stand-by power consumption of control circuit unit under 1 modulation of pulse enable signal treated of the area of dash area representative in Fig. 4 waveform.In the power-supply system stand-by time, here the ratio of all high level time length sums and stand-by time length in the pulse enable signal 1 is referred to as the average duty ratio D1 of pulse enable signal 1, the average duty ratio D1 of pulse enable signal 1 also is referred to as the discontinuous index of modulation K1 that treats machine testing and control circuit unit stand-by power consumption, and the value of K1 is directly proportional with the discontinuous average stand-by power consumption size of machine testing and control circuit unit for the treatment of.Therefore ought discontinuously treat that machine testing and control circuit unit do not need the application that system is monitored continuously, detects or wakes up, suitably regulate its index of modulation K1, its average stand-by power consumption is minimized.
Fig. 5 shows the structural principle of the power-supply system that the embodiment of the invention provides, and for convenience of description, only shows the part relevant with the embodiment of the invention.
With reference to Fig. 5, power-supply system 5 comprises that standby mode detects and control circuit 51, normal mode detects and control circuit 52 and other devices and circuit part 53, wherein standby mode detection and control circuit 51 are used for continuous detecting power-supply system outside or internal signal input status under the power-supply system ideal case, then testing result is handled and is exported control signal, comprise that discontinuous standby mode detects and control circuit unit 1, discontinuous standby mode detection and control circuit unit 2 etc. do not need system is monitored continuously under power-supply system 5 ideal case, the circuit unit that detects or wake up, and need monitor continuously system, the continuous standby mode that detects or wake up detects and control circuit unit 3 and continuous standby mode detection and control circuit unit 4; Normal mode detects and control circuit 52 is used for detecting outside or internal signal input status after power-supply system withdraws from standby mode and enters normal mode of operation, then testing result is handled and exported control signal; Other devices and circuit part 53 are other necessary part of power-supply system, power switch pipe etc. for example, also can comprise battery charging module, its duty is subjected to the control of the control signal of standby mode detection and control circuit 51 and normal mode detection and control circuit 52 outputs fully, is used for the needed supply voltage of generation system.Pulse-generating circuit 54 is controlled discontinuous machine testing and control circuit unit 1 and the discontinuous break-make for the treatment of machine testing and control circuit unit 2 bias currents treated by producing the pulse enable signal in good time, when discontinuous machine testing and the control circuit unit 1 and discontinuous when treating that machine testing and control circuit unit 2 need be monitored, detect system or wake up treated, control the discontinuous machine testing and control circuit unit 1 and discontinuous treating treated and exist in machine testing and the control circuit unit 2 or increase bias current, so that system is monitored, detects or wakes up; And when discontinuous machine testing and the control circuit unit 1 and discontinuous when treating that machine testing and control circuit unit 2 do not need system monitored, detects or wake up treated, pulse-generating circuit 54 turn-offs or reduces discontinuous machine testing and control circuit unit 1 and the discontinuous bias current that exists in machine testing and the control circuit unit 2 treated treated.Wherein, discontinuous machine testing and control circuit unit 1, discontinuous machine testing and the control circuit unit 2 treated treated can also comprise that discontinuity under the holding state produces the bias current generating circuit of bias current, continuously standby mode detect and control circuit unit 3 and continuously standby mode detect and control circuit unit 4 can also comprise the bias current generating circuit that continues the generation bias current holding state under.Pulse-generating circuit 54 can be subjected to the control of other circuit and produce the pulse enable signal, also control circuit can not had and generation voluntarily, as random signal generator etc., pulse-generating circuit 54 can also be produced as the signal that each circuit unit in the power-supply system provides clock signal and some special applications of operate as normal, as needed maximum of power-supply system or minimum duty cycle signal etc., concrete pulse enable signal controlling principle is as indicated above, repeats no more herein.
As an alternative embodiment of the invention, pulse-generating circuit can be built in standby mode detection and the control circuit 51, as shown in Figure 6.
Fig. 7 shows discontinuous a kind of specific implementation for the treatment of machine testing and control circuit unit among Fig. 5 or Fig. 6, adopt this mode can use the higher pulse enable signal of dutycycle and only consume more low-power consumption, with reference to Fig. 7, dutycycle is that 50% pulse enable signal obtains two divided-frequency signal Q1 and four fractional frequency signal Q2 through trigger 1 and trigger 2 frequency divisions successively, it is 25% pulse enable signal EN1 that two divided-frequency signal Q1 and four fractional frequency signal Q2 carry out generating behind the logic and operation dutycycle through one with door 71, last discontinuous machine testing and control circuit module 72 voltage to battery BAT under the modulation of pulse enable signal ENI for the treatment of carries out discontinuous detection, when pulse enable signal EN1 is high level, discontinuously treat that machine testing and control circuit module 72 are with the voltage of battery BAT and reference voltage VERF relatively, judge whether cell voltage is low excessively, this moment, discontinuous machine testing and the control circuit module 72 treated consumed certain power consumption; When pulse enable signal EN1 is low level, the discontinuous bias current of machine testing and control circuit module 72 for the treatment of is turned off, stop the voltage of battery BAT is detected, discontinuous as can be seen machine testing and the control circuit unit reception dutycycle treated is 50% pulse enable signal, and power consumption has only 1/4th of its running hours power consumption.
Be to be understood that, can be during concrete enforcement according to the concrete discontinuous needs for the treatment of machine testing and control circuit unit, the frequency of the pulse enable signal of the quantity of cascaded flip-flops and input is set, and with in a plurality of cascaded flip-flops first with last fractional frequency signal that obtains through the discontinuous detection for the treatment of machine testing and control circuit module to relevant parameter of modulation behind logic and operation.
Fig. 8 shows the discontinuous another kind of specific implementation for the treatment of machine testing and control circuit unit among Fig. 5 or Fig. 6, wherein be that 50% signal and its two divided-frequency signal that obtains through trigger 1 input to and carry out logic and operation with door 81 and handle with dutycycle, obtain dutycycle and be 25% pulse enable signal EN1, use this pulse enable signal EN1 that discontinuous machine testing and the control circuit module 82 treated modulated.Compare with circuit shown in Figure 7 as can be seen, reduced the use of a trigger, provide cost savings.
Be to be understood that, equally can be among Fig. 8 according to the concrete discontinuous needs for the treatment of machine testing and control circuit unit, the frequency of the pulse enable signal of the quantity of cascaded flip-flops and input is set, and the pulse enable signal of input and with last fractional frequency signal that obtains in a plurality of cascaded flip-flops through the discontinuous detection for the treatment of machine testing and control circuit module to relevant parameter of modulation behind logic and operation.
In the embodiment of the invention, standby mode detection and control circuit are divided, the stand-by power consumption of the circuit unit that wherein do not need power-supply system is monitored continuously, detected or wakes up is modulated, thereby reduce the average stand-by power consumption of whole power-supply system, prolong battery serviceable life or make product energy-conservation; Simultaneously discontinuous treat trigger in machine testing and the control circuit unit and with the employing of door, can also realize using the higher pulse enable signal of dutycycle and only consume more low-power consumption.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1, a kind of power-supply system is characterized in that, described power-supply system comprises:
Normal mode detects and control circuit, is used for after power-supply system enters normal mode of operation, detects the input status of outside or internal signal, and control signal is handled and exported to testing result;
Standby mode detects and control circuit, is used for detecting under the power-supply system ideal case input status of power-supply system outside or internal signal, then testing result is handled and exported control signal;
Described standby mode detects and control circuit further comprises:
One or more discontinuous standby modes detect and control circuit unit, be used for system's discontinuity is monitored, detected or wake up, when described circuit unit need be monitored, detect system or wake up, described circuit unit Be Controlled exists or the increase bias current, when described circuit unit did not need system monitored, detects or wake up, its bias current Be Controlled was turn-offed or is reduced;
One or more continuous standby modes detect and control circuit unit, are used for system is monitored continuously, detects or wakes up.
2, power-supply system as claimed in claim 1, it is characterized in that, described one or more discontinuous standby mode detection and control circuit unit are by the break-make or the variation of pulse enable signal controlling bias current, to realize system's discontinuity monitoring, to detect or wake up.
3, power-supply system as claimed in claim 2 is characterized in that, described pulse enable signal is produced by a pulse-generating circuit, and described pulse-generating circuit is independent of outside the described power-supply system.
4, power-supply system as claimed in claim 2 is characterized in that, described pulse enable signal is produced by a pulse-generating circuit, and described pulse-generating circuit is built among described standby mode detection and the control circuit.
As each described power-supply system of claim 1 to 4, it is characterized in that 5, described discontinuous standby mode detects and control circuit unit comprises:
At least two cascaded flip-flops are used for the pulse enable signal of input is carried out the frequency division processing;
One with door, be used for the output frequency division signal of first trigger of described at least two cascaded flip-flops and the output frequency division signal of last trigger are carried out logic and operation; And
Discontinuous standby mode detects and control module, is used under described signal with door computing output is modulated system's discontinuity being monitored, being detected or wake up.
As each described power-supply system of claim 1 to 4, it is characterized in that 6, described discontinuous standby mode detects and control circuit unit comprises:
One or more cascaded flip-flops is used for the pulse enable signal of input is carried out the frequency division processing;
One with door, be used for the pulse enable signal that output frequency division signal and described one or more cascaded flip-flops to last trigger of described one or more cascaded flip-flops receive and carry out logic and operation; And
Discontinuous standby mode detects and control module, is used under described signal with door computing output is modulated system's discontinuity being monitored, being detected or wake up.
7, a kind of method that reduces standby power consumption of power supply system is characterized in that, described power-supply system comprises discontinuous machine testing and the control circuit unit treated; Described method comprises:
, control discontinuous treating and exist in machine testing and the control circuit unit or increase bias current, when treating that machine testing and control circuit unit need be monitored, detect system or wake up when discontinuous so that system is monitored, detects or wakes up;
When discontinuous when treating that machine testing and control circuit unit do not need system monitored, detects or wake up, turn-off or reduce the discontinuous bias current that exists in machine testing and the control circuit unit treated.
8, the method for reduction standby power consumption of power supply system as claimed in claim 7 is characterized in that, described method is by discontinuous break-make or the variation for the treatment of machine testing and control circuit unit bias current of pulse enable signal controlling.
9, the method for reduction standby power consumption of power supply system as claimed in claim 7, it is characterized in that described method uses set of pulses enable signal that consistent at interval a plurality of discontinuous machine testing and the control circuit unit treated of monitoring, detection or wakeup time unified control.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102412814A CN101458538A (en) | 2008-12-17 | 2008-12-17 | Method for reducing standby power consumption of power supply system and the power supply system |
| PCT/CN2009/001476 WO2010069142A1 (en) | 2008-12-17 | 2009-12-16 | Method for reducing standby power consumption of power source system and power source system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102412814A CN101458538A (en) | 2008-12-17 | 2008-12-17 | Method for reducing standby power consumption of power supply system and the power supply system |
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| CN101458538A true CN101458538A (en) | 2009-06-17 |
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| CNA2008102412814A Pending CN101458538A (en) | 2008-12-17 | 2008-12-17 | Method for reducing standby power consumption of power supply system and the power supply system |
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| WO (1) | WO2010069142A1 (en) |
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| WO2010069142A1 (en) * | 2008-12-17 | 2010-06-24 | 炬力集成电路设计有限公司 | Method for reducing standby power consumption of power source system and power source system |
| CN102520632A (en) * | 2011-12-16 | 2012-06-27 | Tcl通力电子（惠州）有限公司 | Audio signal detection method, circuit and audio product |
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| CN107145207A (en) * | 2017-05-06 | 2017-09-08 | 湖南融和微电子有限公司 | A kind of wake-up circuit under holding state pattern |
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| JP2000324833A (en) * | 1999-05-06 | 2000-11-24 | Nec Corp | Method for reducing power consumption of switching power supply in load standby and switching power supply |
| US6385099B1 (en) * | 2001-03-16 | 2002-05-07 | Intel Corpration | Reducing level shifter standby power consumption |
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| US7522941B2 (en) * | 2005-05-23 | 2009-04-21 | Broadcom Corporation | Method and apparatus for reducing standby power consumption of a handheld communication system |
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| CN101458538A (en) * | 2008-12-17 | 2009-06-17 | 炬力集成电路设计有限公司 | Method for reducing standby power consumption of power supply system and the power supply system |
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- 2008-12-17 CN CNA2008102412814A patent/CN101458538A/en active Pending
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2009
- 2009-12-16 WO PCT/CN2009/001476 patent/WO2010069142A1/en active Application Filing
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| WO2010069142A1 (en) * | 2008-12-17 | 2010-06-24 | 炬力集成电路设计有限公司 | Method for reducing standby power consumption of power source system and power source system |
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