CN103066690A - Low-power-consumption standby circuit - Google Patents
Low-power-consumption standby circuit Download PDFInfo
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- CN103066690A CN103066690A CN2013100029310A CN201310002931A CN103066690A CN 103066690 A CN103066690 A CN 103066690A CN 2013100029310 A CN2013100029310 A CN 2013100029310A CN 201310002931 A CN201310002931 A CN 201310002931A CN 103066690 A CN103066690 A CN 103066690A
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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
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The invention discloses a low-power-consumption standby circuit which comprises a main switch power supply sub-circuit, a switch changing-over sub-circuit, a standby switch power supply sub-circuit and a charge-discharge switch sub-circuit. The main switch power supply sub-circuit is used for providing working voltage for electrical equipment. One end of the switch changing-over sub-circuit is connected with the main switch power supply sub-circuit, and the other end of the switch changing-over sub-circuit is connected with a power grid so as to control the working state of the main switch power supply sub-circuit. An input end of the standby switch power supply sub-circuit is connected with the power grid, and an output end of the standby switch power supply sub-circuit is connected with an energy storage element so as to provide charging voltage for the energy storage element which is used for providing working voltage for a main control chip and a corresponding load. The charge-discharge switch sub-circuit is connected between the output end of the standby switch power supply sub-circuit and the energy storage element and used for controlling charging and discharging of the energy storage element. The low-power-consumption standby circuit is capable of reducing standby power consumption and suitable for using by people.
Description
Technical field
The present invention relates to technical field of electronic products, particularly a kind of low-power consumption standby circuit.
Background technology
The low-carbon (LC) life is the development trend of society, and energy-saving and emission-reduction are the common topics of various circles of society.Household electrical appliance in daily life many times all are not pull up plug, and namely within very long a period of time, these electrical equipment all are in holding state.In the prior art, electrical appliance adopts switching power circuit to power usually, under holding state, by Switching Power Supply fractional load is powered, but because the power of Switching Power Supply autophage is larger, therefore so that the power consumption under the holding state is larger, need improvement badly.
Summary of the invention
Main purpose of the present invention is to provide a kind of low-power consumption standby circuit, is intended to reduce stand-by power consumption.
To achieve these goals, the invention provides a kind of low-power consumption standby circuit, described low-power consumption standby circuit comprises:
Main switch power supply electronic circuit is used for providing operating voltage for electrical appliance;
The switching over electronic circuit, an end is connected the other end with described main switch power supply electronic circuit and is connected with electrical network, to control the operating state of described main switch power supply electronic circuit;
Standby switches power supply electronic circuit, input is connected with electrical network, and output is connected with energy-storage travelling wave tube, thinks that described energy-storage travelling wave tube provides charging voltage, and described energy-storage travelling wave tube is used for providing operating voltage for Master control chip and corresponding load;
The charge and discharge switch electronic circuit is connected between the output and energy-storage travelling wave tube of described standby switches power supply electronic circuit, is used for controlling discharging and recharging of described energy-storage travelling wave tube.
Preferably, the positive voltage output end of described energy-storage travelling wave tube is connected with described Master control chip by stream translation electronic circuit always.
Preferably, be connected one first diode between the output of described direct current conversion electronic circuit and the described load, the anode of this first diode is connected with the output that described direct current is changed electronic circuit; Negative electrode is connected with described load; The output of described main switch power supply electronic circuit is connected with the negative electrode of described the first diode by the second diode; The junction of the negative electrode of described the first diode and the negative electrode of the second diode links to each other with Master control chip, thinks described Master control chip power supply.
Preferably, described low-power consumption standby circuit also comprises feedback sub-circuit, this feedback sub-circuit is connected with output and the Master control chip of described main switch power supply electronic circuit respectively, feeds back to Master control chip with the output end voltage with described main switch power supply electronic circuit.
Preferably, described direct current conversion electronic circuit passes through the second diode output voltage by the voltage of the first diode output less than described main switch power supply electronic circuit.
Preferably, described energy-storage travelling wave tube is the first electric capacity, and described the first electric capacity is super capacitor.
Preferably, described switching over electronic circuit comprises the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the first triode, two-way optocoupler and bidirectional triode thyristor; Wherein, the first triode is the NPN triode, and its base stage is connected with Master control chip by the first resistance, grounded emitter, and collector electrode is connected with the negative electrode of light-emitting diode in the described two-way optocoupler; The anode of light-emitting diode is connected by the output of the second resistance with described direct current conversion electronic circuit in the two-way optocoupler, and an end of receiving terminal is connected with the live wire of electrical network by the 3rd resistance, and the other end is connected with the control utmost point of bidirectional triode thyristor; The first anode of described bidirectional triode thyristor is connected with the live wire of described electrical network, and second plate is connected with described main switch power supply electronic circuit, and is connected with the control utmost point of this bidirectional triode thyristor by the 4th resistance.
Preferably, described charge and discharge switch electronic circuit comprises the first field effect transistor, the second field effect transistor, the 3rd field effect transistor, the 5th resistance, the 6th resistance, the 7th resistance, the second electric capacity and the 3rd diode, wherein the drain electrode of the first field effect transistor is connected with the negative electrode of the 3rd diode, and be connected with the grid of the second field effect transistor and the drain electrode of the 3rd field effect transistor respectively by the 5th resistance, grid is connected with the drain electrode of the second field effect transistor, and source electrode is connected with the positive pole of described the first electric capacity; The source ground of the second field effect transistor; The grid of the 3rd field effect transistor is connected with Master control chip, and by the 6th grounding through resistance, source ground; Be connected to after the second electric capacity and the 7th resistance parallel connection between the grid and drain electrode of the first field effect transistor; The anode of described the 3rd diode is connected with the output of described standby switches power supply electronic circuit.
Preferably, described low-power consumption standby circuit also comprises the detection electronic circuit, this end that detects electronic circuit is connected with described energy-storage travelling wave tube, the other end is connected with Master control chip, and according to the Voltage-output voltage feedback signal of energy-storage travelling wave tube to Master control chip, control the operating state of described charge and discharge switch electronic circuit for Master control chip.
Preferably, described low-power consumption standby circuit also comprises the load switch electronic circuit that is connected with the output of described main switch power supply electronic circuit for control load.
Low-power consumption standby circuit provided by the invention is when work, when electrical appliance enters holding state, output control signals to the switching over electronic circuit by Master control chip, thereby cut off being connected of main switch power supply electronic circuit and electrical network, so that main switch power supply electronic circuit quits work.Power in Master control chip and holding state corresponding circuit by energy-storage travelling wave tube this moment, and by the charge and discharge switch electronic circuit, in the lower situation of the voltage of energy-storage travelling wave tube, standby switches power supply electronic circuit is communicated with energy-storage travelling wave tube, so that energy-storage travelling wave tube is charged, when the voltage of energy-storage travelling wave tube charging is higher, disconnection standby switches power supply electronic circuit is connected with energy-storage travelling wave tube, thereby stops the charging to energy-storage travelling wave tube.Since in the process that energy-storage travelling wave tube discharges, the unloaded output of standby switches power supply electronic circuit, and the power that therefore consumes is zero substantially; Simultaneously, because standby switches power supply electronic circuit only needs and will provide charging voltage to energy-storage travelling wave tube, therefore for main switch power supply electronic circuit, the power that consumes during work is lower.Therefore low-power consumption standby circuit provided by the invention can reduce stand-by power consumption, more is suitable for people and uses.
Description of drawings
Fig. 1 is the structural representation of low-power consumption standby circuit one embodiment of the present invention;
Fig. 2 is the structural representation of another embodiment of low-power consumption standby circuit of the present invention.
The realization of the object of the invention, functional characteristics and advantage are described further with reference to accompanying drawing in connection with embodiment.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
With reference to Fig. 1, Fig. 1 is the structural representation of low-power consumption standby circuit one embodiment of the present invention.The low-power consumption standby circuit that present embodiment provides comprises:
Main switch power supply electronic circuit 10 is used for providing operating voltage for electrical appliance;
Switching over electronic circuit 11, one ends are connected the other end with main switch power supply electronic circuit 10 and are connected with electrical network 12, with the operating state of control main switch power supply electronic circuit 10;
Standby switches power supply electronic circuit 13, input is connected with electrical network 12, and output is connected with energy-storage travelling wave tube 14, thinks that described energy-storage travelling wave tube provides charging voltage, and described energy-storage travelling wave tube is used for providing operating voltage for Master control chip 15;
Charge and discharge switch electronic circuit 16 is connected between the output and energy-storage travelling wave tube 14 of standby switches power supply electronic circuit 13, is used for discharging and recharging of control energy-storage travelling wave tube 14.
Low-power consumption standby circuit provided by the invention is when work, when electrical appliance enters holding state, output control signals to switching over electronic circuit 11 by Master control chip 15, thereby cut off being connected of main switch power supply electronic circuit 10 and electrical network 12, so that main switch power supply electronic circuit 10 quits work.Power by corresponding circuit in 14 pairs of Master control chips 15 of energy-storage travelling wave tube and the holding state this moment, and by charge and discharge switch electronic circuit 16, in the lower situation of the voltage of energy-storage travelling wave tube 14, standby switches power supply electronic circuit 13 is communicated with energy-storage travelling wave tube 14, so that energy-storage travelling wave tube 14 is charged, when the voltage of energy-storage travelling wave tube 14 charging is higher, disconnection standby switches power supply electronic circuit 13 is connected with energy-storage travelling wave tube 14, thereby stops the charging to energy-storage travelling wave tube 14.Since in the process that energy-storage travelling wave tube 14 discharges, the 13 unloaded outputs of standby switches power supply electronic circuit, and the power that therefore consumes is zero substantially; Simultaneously, because 13 needs of standby switches power supply electronic circuit will provide charging voltage to energy-storage travelling wave tube 14, therefore for main switch power supply electronic circuit 10, the power that consumes during work is lower.Therefore low-power consumption standby circuit provided by the invention can reduce stand-by power consumption, more is suitable for people and uses.
Further, the positive voltage output end of above-mentioned energy-storage travelling wave tube 14 is connected with Master control chip 15 by stream translation electronic circuit 17 always.
In the present embodiment, above-mentioned direct current conversion electronic circuit 17 is the DC-DC change-over circuit, the specific voltage (for example 3.3V) that this direct current conversion electronic circuit 17 can become the voltage transitions of energy-storage travelling wave tube 14 stable and can make Master control chip 15 work.Present embodiment exports the voltage of Master control chip 15 to by direct current conversion electronic circuit 17 adjustment energy-storage travelling wave tubes 14 are set, thereby has improved the stability of circuit working.
In conjunction with reference to Fig. 2, Fig. 2 is the structural representation of another embodiment of low-power consumption standby circuit of the present invention.In the present embodiment, be connected one first diode D1 between the output of above-mentioned direct current conversion electronic circuit 17 and the above-mentioned load, the anode of this first diode D1 is connected with the output that direct current is changed electronic circuit 17; Negative electrode is connected with load; The output of main switch power supply electronic circuit 10 is connected with the negative electrode of the first diode D1 by the second diode D2; The junction of the negative electrode of described the first diode D1 and the negative electrode of the second diode D2 links to each other with Master control chip 15, thinks Master control chip 15 power supplies.
In the present embodiment, the negative electrode of above-mentioned the second diode D2 is connected with the first diode D1 negative electrode, anode is connected with the output of main switch power supply electronic circuit 10, because diode has the unidirectional general character, therefore can effectively prevent when holding state, electric current reverse flow by the first diode D1 output is become owner of in the Switching Power Supply electronic circuit 10, prevents that the related load in main switch power supply electronic circuit 10 associated loop consists of power circuit so that stand-by power consumption increases.
Based on above-described embodiment, in the present embodiment, above-mentioned low-power consumption standby circuit also comprises feedback sub-circuit 18, this feedback sub-circuit 18 is connected with output and the Master control chip 15 of main switch power supply electronic circuit 10 respectively, feeds back to Master control chip 15 with the output end voltage with main switch power supply electronic circuit 10.
Particularly, above-mentioned feedback sub-circuit 18 comprises the first divider resistance R101 and the second divider resistance R102, wherein the end of the first divider resistance R101 is connected with the output of main switch power supply electronic circuit 10, the other end is connected with the IO mouth of Master control chip 15, and by the second divider resistance R102 ground connection.For convenience of description, the pinout that herein Master control chip 15 is connected with the first divider resistance R101 is the POWER_CHK pin.When energy-storage travelling wave tube 14 is in discharge condition, if electrical appliance start this moment, then Master control chip 15 will export control signal and control above-mentioned switching over electronic circuit 11 unlatchings, thereby so that main switch power supply electronic circuit 10 be connected with electrical network 12.If this moment, the POWER_CHK pin of Master control chip 15 was low level, judge that then electrical network 12 has disconnected (for example attaching plug is extracted), Master control chip 15 will be controlled electrical appliance and continue to keep holding state; If this moment, the POWER_CHK pin of Master control chip 15 was high level, judge that then electrical network 12 normally is connected with main switch power supply electronic circuit 10, Master control chip 15 will be controlled the electrical appliance normal boot-strap.
Be understandable that above-mentioned energy-storage travelling wave tube 14 can arrange according to actual needs, in the present embodiment, energy-storage travelling wave tube 14 is preferably one first capacitor C 1, and this first capacitor C 1 is super capacitor.The positive pole of this first capacitor C 1 is connected minus earth with charge and discharge switch electronic circuit 16.
Particularly, above-mentioned switching over electronic circuit 11 comprises the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the first triode Q1, two-way optocoupler DPT01 and bidirectional triode thyristor TR01; Wherein, the first triode Q1 is the NPN triode, and its base stage is connected with Master control chip 15 by the first resistance R 1, grounded emitter, and collector electrode is connected with the negative electrode of light-emitting diode among the two-way optocoupler DPT01; The anode of light-emitting diode is connected by the output of the second resistance R 2 with direct current conversion electronic circuit 17 among the two-way optocoupler DPT01, one end of receiving terminal be connected with the live wire 12L of electrical network 12 by the 3rd resistance R 3, the other end is connected with the control utmost point of bidirectional triode thyristor TR01; The first anode of bidirectional triode thyristor TR01 is connected with the live wire of electrical network 12L, and second plate is connected with main switch power supply electronic circuit 10, and is connected with the control utmost point of this bidirectional triode thyristor TR01 by the 4th resistance R 4.
In the present embodiment, the zero line 12N of above-mentioned electrical network 12 is connected with above-mentioned main switch power supply electronic circuit 10, above-mentioned the first resistance R 1 is connected with the MSPS_EN pin of Master control chip 15, when powering on for the first time, the MSPS_EN pin is low level, this moment, the first triode Q1, two-way optocoupler DPT01 and bidirectional triode thyristor TR01 all ended, and main switch power supply electronic circuit 10 is without the alternating current input, so that main switch power supply electronic circuit 10 is not worked.When electrical appliance is started shooting, the MSPS_EN pin output high level by Master control chip 15, so that the first triode Q1 conducting, thereby so that two-way optocoupler DPT01 conducting, and then control bidirectional triode thyristor TR01 conducting, main switch power supply electronic circuit 10 normal operations this moment.
Be understandable that, in the present embodiment, be connected with the live wire 12L of electrical network 12 by adopting bidirectional triode thyristor TR01 control main switch power supply electronic circuit 10, among other embodiment, also can connect by the live wire 12L of other switch elements control electrical networks 12, such as relay etc.
Particularly, above-mentioned charge and discharge switch electronic circuit 16 comprises the first field effect transistor Q11, the second field effect transistor Q12, the 3rd field effect transistor Q13, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the second capacitor C 2 and the 3rd diode D3, wherein the drain electrode of the first field effect transistor Q11 is connected with the negative electrode of the 3rd diode D3, and be connected with the grid of the second field effect transistor Q12 and the drain electrode of the 3rd field effect transistor Q13 respectively by the 5th resistance R 5, grid is connected with the drain electrode of the second field effect transistor Q12, and source electrode is connected with the positive pole of the first capacitor C 1; The source ground of the second field effect transistor Q12; The grid of the 3rd field effect transistor Q13 is connected with Master control chip 15, and by the 6th resistance R 6 ground connection, source ground; Be connected to after the second capacitor C 2 and 7 parallel connections of the 7th resistance R between the grid and drain electrode of the first field effect transistor Q1; The anode of the 3rd diode D3 is connected with the output of standby switches power supply electronic circuit 13.
Based on above-described embodiment, in the present embodiment, above-mentioned low-power consumption standby circuit also comprises detection electronic circuit 19, this end that detects electronic circuit 19 is connected with energy-storage travelling wave tube 14, the other end is connected with Master control chip 15, and control signal to Master control chip 15 according to the Voltage-output of energy-storage travelling wave tube 14, for the operating state of Master control chip 15 control charge and discharge switch electronic circuits 16.
In the present embodiment, the first field effect transistor Q11 is the P-channel field-effect transistor (PEFT) pipe, and the second field effect transistor Q12 and the 3rd field effect transistor Q13 are N channel field-effect pipe, and the grid of the 3rd field effect transistor Q13 is connected with the ZSPS_EN pin of Master control chip 15.
The magnitude of voltage that detects energy-storage travelling wave tube 14 when above-mentioned detection electronic circuit 19 is during less than first threshold, to export the charging unlatching and control signal to Master control chip 15, Master control chip 15 will be opened control signal control ZSPS_EN pin output low level according to this charging, and the 3rd field effect transistor Q13 will end.Set high level by pull-up resistor the 5th resistance R 5 with the grid of the second field effect transistor Q12 this moment, thereby so that the second field effect transistor Q12 conducting, the grid that causes the first field effect transistor Q11 is low level, and then so that the first field effect transistor Q11 conducting.At this moment, standby switches power supply electronic circuit 13 will be communicated with energy-storage travelling wave tube 14, so that energy-storage travelling wave tube 14 is charged.In the process of charging, the magnitude of voltage that detects energy-storage travelling wave tube 14 when above-mentioned detection electronic circuit 19 is during greater than Second Threshold, Master control chip 15 will be opened control signal control ZSPS_EN pin output low level according to this charging, the 3rd field effect transistor Q13 is with conducting, thus so that the second field effect transistor Q12 and the first field effect transistor Q11 cut-off.At this moment, energy-storage travelling wave tube 14 will be in discharge condition.
Should be noted that in the present embodiment that the large I of above-mentioned first threshold and Second Threshold arranges according to actual needs, does not do further restriction at this, first threshold is preferably 2V, and Second Threshold is preferably 5V.Above-mentioned detection electronic circuit 19 can arrange according to actual needs, for example can adopt voltage checking chip that energy-storage travelling wave tube 14 is carried out voltage detecting.
Further, based on above-described embodiment, in the present embodiment, above-mentioned low-power consumption standby circuit comprises that also the signal that receives standby command and start-up command receives electronic circuit 20, this signal receives electronic circuit 20 and is connected with Master control chip 15, to control signal to accordingly Master control chip 15 according to the standby command that is received and start-up command output, this Master control chip 15 enters operating state or holding state according to the control signal control electrical appliance that signal reception electronic circuit sends.
In the present embodiment, take television set as example, standby command and start-up command can trigger by the button on remote controller or the television set, and it is infrared receiving circuit and push button signalling receiving circuit that above-mentioned signal receives electronic circuit 20.
Further, above-mentioned low-power consumption standby circuit also comprises the load switch electronic circuit 21 that is connected with the output of main switch power supply electronic circuit 10 for control load.
In the present embodiment, load comprises the first load 22 and the second load 23, the wherein load that must power for holding state of the first load 22, and the second load 23 is the load of the nonessential power supply of holding state.The first load 23 is connected with the output of main switch power supply electronic circuit 10 by load switch electronic circuit 21.If should be noted that when having the first diode D1 and the second diode D2, the first load 23 is connected with the negative electrode of the second diode D2 by load switch electronic circuit 21.
Above-mentioned load switch electronic circuit 21 comprises the 4th field effect transistor Q14, the second triode Q2, the 3rd capacitor C 3, the 8th resistance R 8 and the 9th resistance R 9 particularly, wherein the drain electrode of the 4th field effect transistor Q14 is connected with the negative electrode of the second diode D2, source electrode is connected with the second load 23, and grid is connected with the collector electrode of the second triode Q2; The second triode Q2 is the NPN triode, its grounded emitter, and base stage is connected with Master control chip 15 by the 8th resistance R 8; Be connected between the drain and gate of the 4th field effect transistor Q14 after the 9th resistance R 9 and 3 parallel connections of the 3rd capacitor C.
When electrical appliance was in holding state, Master control chip 15 outputs control signals to the second triode Q2 by the 8th resistance R 8 base stage to be controlling closing of the second triode Q2, thereby so that the 4th field effect transistor 14 is closed and then so that the second load 23 outages.Therefore can effectively prolong the discharge time of energy-storage travelling wave tube 14, thereby further effectively reduce stand-by power consumption.
In the present embodiment, standby switches power supply electronic circuit 13 work when circuit powers on standby, because pull-up resistor R5 cause makes the electronic circuit conducting, the voltage at energy-storage travelling wave tube 14 two ends will receive electronic circuit 20 power supplies to Master control chip 15, the first load 22 and signal by DC converting circuit 17, the first diode D1 to the charge and discharge switch electronic circuit when powering on.
After signal reception electronic circuit 20 was received starting-up signal, Master control chip 15 control switchs switch electronic circuit 11 made main switch power supply electronic circuit 10 pluggeds, and by the second diode D2 output voltage.Because direct current conversion electronic circuit 17 passes through the second diode D2 output voltage by the voltage of the first diode D1 output less than main switch power supply electronic circuit 10, thereby so that the output of standby switches power supply electronic circuit 10 is cut off, standby switches power supply electronic circuit 10 is in Light Condition at this moment.All loads comprise that the first load 22, the second load 23, Master control chip 15 and signal receive electronic circuit 20 all by 10 power supplies of main switch power supply electronic circuit.Should be noted that above-mentioned main switch power supply electronic circuit 10 is 5V by the voltage that the second diode D2 exports in the present embodiment, direct current conversion electronic circuit 17 is 3.3V by the voltage of the first diode D1 output.
Below only be the preferred embodiments of the present invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
1. low-power consumption standby circuit is characterized in that: comprising:
Main switch power supply electronic circuit is used for providing operating voltage for electrical appliance;
The switching over electronic circuit, an end is connected the other end with described main switch power supply electronic circuit and is connected with electrical network, to control the operating state of described main switch power supply electronic circuit;
Standby switches power supply electronic circuit, input is connected with electrical network, and output is connected with energy-storage travelling wave tube, thinks that described energy-storage travelling wave tube provides charging voltage, and described energy-storage travelling wave tube is used for providing operating voltage for Master control chip and corresponding load;
The charge and discharge switch electronic circuit is connected between the output and energy-storage travelling wave tube of described standby switches power supply electronic circuit, is used for controlling discharging and recharging of described energy-storage travelling wave tube.
2. low-power consumption standby circuit as claimed in claim 1 is characterized in that: the positive voltage output end of described energy-storage travelling wave tube is connected with described Master control chip by stream translation electronic circuit always.
3. low-power consumption standby circuit as claimed in claim 2 is characterized in that: be connected one first diode between the output of described direct current conversion electronic circuit and the described load, the anode of this first diode is connected with the output that described direct current is changed electronic circuit; Negative electrode is connected with described load; The output of described main switch power supply electronic circuit is connected with the negative electrode of described the first diode by the second diode; The junction of the negative electrode of described the first diode and the negative electrode of the second diode links to each other with Master control chip, thinks described Master control chip power supply.
4. low-power consumption standby circuit as claimed in claim 3, it is characterized in that: described low-power consumption standby circuit also comprises feedback sub-circuit, this feedback sub-circuit is connected with output and the Master control chip of described main switch power supply electronic circuit respectively, feeds back to Master control chip with the output end voltage with described main switch power supply electronic circuit.
5. low-power consumption standby circuit as claimed in claim 3 is characterized in that: the voltage of described direct current conversion electronic circuit by the output of the first diode less than described main switch power supply electronic circuit by the second diode output voltage.
6. low-power consumption standby circuit as claimed in claim 2, it is characterized in that: described energy-storage travelling wave tube is the first electric capacity, described the first electric capacity is super capacitor.
7. low-power consumption standby circuit as claimed in claim 6, it is characterized in that: described switching over electronic circuit comprises the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the first triode, two-way optocoupler and bidirectional triode thyristor; Wherein, the first triode is the NPN triode, and its base stage is connected with Master control chip by the first resistance, grounded emitter, and collector electrode is connected with the negative electrode of light-emitting diode in the described two-way optocoupler; The output that the anode of light-emitting diode is changed electronic circuit by the second resistance and described direct current in the two-way optocoupler is connected, an end of receiving terminal be connected with the live wire of electrical network by the 3rd resistance, the other end is connected with the control utmost point of bidirectional triode thyristor; The first anode of described bidirectional triode thyristor is connected with the live wire of described electrical network, and second plate is connected with described main switch power supply electronic circuit, and is connected with the control utmost point of this bidirectional triode thyristor by the 4th resistance.
8. low-power consumption standby circuit as claimed in claim 6, it is characterized in that: described charge and discharge switch electronic circuit comprises the first field effect transistor, the second field effect transistor, the 3rd field effect transistor, the 5th resistance, the 6th resistance, the 7th resistance, the second electric capacity and the 3rd diode, wherein the drain electrode of the first field effect transistor is connected with the negative electrode of the 3rd diode, and be connected with the grid of the second field effect transistor and the drain electrode of the 3rd field effect transistor respectively by the 5th resistance, grid is connected with the drain electrode of the second field effect transistor, and source electrode is connected with the positive pole of described the first electric capacity; The source ground of the second field effect transistor; The grid of the 3rd field effect transistor is connected with Master control chip, and by the 6th grounding through resistance, source ground; Be connected to after the second electric capacity and the 7th resistance parallel connection between the grid and drain electrode of the first field effect transistor; The anode of described the 3rd diode is connected with the output of described standby switches power supply electronic circuit.
9. such as each described low-power consumption standby circuit of claim 1 to 8, it is characterized in that: described low-power consumption standby circuit also comprises the detection electronic circuit, this end that detects electronic circuit is connected with described energy-storage travelling wave tube, the other end is connected with Master control chip, and according to the Voltage-output voltage feedback signal of energy-storage travelling wave tube to Master control chip, control the operating state of described charge and discharge switch electronic circuit for Master control chip.
10. low-power consumption standby circuit as claimed in claim 1, it is characterized in that: described low-power consumption standby circuit also comprises the load switch electronic circuit that is connected with the output of described main switch power supply electronic circuit for control load.
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| CN201310002931.0A CN103066690B (en) | 2013-01-04 | 2013-01-04 | Low-power consumption standby circuit |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN116045485A (en) * | 2022-12-30 | 2023-05-02 | 珠海格力电器股份有限公司 | Low-power-consumption circuit of air conditioner and air conditioner |
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