CN101557160B - Ultralow-power standby circuit of inverter power supply - Google Patents
Ultralow-power standby circuit of inverter power supply Download PDFInfo
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- CN101557160B CN101557160B CN2009100279818A CN200910027981A CN101557160B CN 101557160 B CN101557160 B CN 101557160B CN 2009100279818 A CN2009100279818 A CN 2009100279818A CN 200910027981 A CN200910027981 A CN 200910027981A CN 101557160 B CN101557160 B CN 101557160B
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- 238000005265 energy consumption Methods 0.000 description 1
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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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Abstract
The invention discloses an ultralow-power standby circuit of an inverter power supply, which is formed by sequentially connecting a control unit (1), an isolated power supply unit (2), a switching control unit (3) and a detection unit (5). The control unit closes the main inverter circuit after receiving the unloaded signals sent from the alternating current (AC) side, and the voltage of the loadunit terminal is 0 at the time; the high-frequency pulse generated by the control unit drives the power devices in the isolated power supply unit, and a transformer produces a direct current (DC) voltage of about 50V, which is sent to the load unit through the switching control unit; and the detection unit detects whether the current sent back to the load unit is loaded. The inverter power supplycan automatically determine whether to start the main inverter circuit or the load detection circuit on the basis of the load condition, so that the standby power of the entire unit can be lower than0.2W, which is in full compliance with the standards of 'Energy Star'.
Description
Technical field
The present invention relates to inverter, be specifically related to a kind of ultralow-power standby circuit of inverter power supply.
Background technology
Under the overall background that global economy warms, the in short supply day by day of the energy become real, solves the difficult problem that energy problem has become the whole world.When related measure carried out in full preparation, the thing that we can do now was urgently energy-conservation.Some measures have wherein appeared in the decree file, for example, " Energy Star " of North America (Energy Star), European Union, Australia and China are all with reference to having formed policy and rules separately.The requirement up to standard of " Energy Star " is embodied in two aspects: the one, and no-load loss; The 2nd, average potency.No-load loss is meant energized and does not connect loading condition, is also referred to as " standby energy consumption ".Energy Star to the major requirement of external power adapter is: the adapter of (one), standby power 3W～150W power section, the standard of 0.5W, 0.3W is carried out in segmentation.The no-load loss of inverter domestic at present, the overwhelming majority in the world or vehicle power far can not satisfy the requirement of " Energy Star " all greater than more than the 3W.
Summary of the invention
In order to overcome the defective of conventional inversion power supply, reduce the no-load loss of equipment, the invention provides a kind of ultralow-power standby circuit of inverter power supply, adopt the inverter of this stand-by circuit can satisfy the requirement of " Energy Star ".
The technical solution adopted for the present invention to solve the technical problems is: connect stand-by circuit on the main inversion circuit of inverter, this stand-by circuit is connected to form by control unit, insulating power supply unit, switch control unit and detecting unit, control unit connects the insulating power supply unit, the insulating power supply unit connects switch control unit, and switch control unit connects control unit and connects load unit by the load current detecting unit.
After control unit receives the airborne signals that AC side sends here, close main inversion circuit, this moment, the voltage of load unit port was 0, produce high-frequency impulse by control unit, high-frequency impulse drives the power device in the insulating power supply unit, transformer produces the direct voltage about 50V, by switch control unit direct current is passed out to load unit; Judge whether be to add load by the electric current that detecting unit detection load is returned.
The present invention reduces machine no-load loss by turn-offing main inversion circuit, reduces average power consumption by interrupted starting load testing circuit, through experiment, adopts technical scheme of the present invention, and the standby average power consumption drops to 0.2W about by original 4W.
Description of drawings
Fig. 1 is a schematic block circuit diagram of the present invention.
Fig. 2 is one of the embodiment of the present invention circuit diagram.
Fig. 3 is two circuit diagrams of embodiment of the present invention.
Among the figure: 1 control unit, 2 insulating power supply unit, 3 switch control units, 4 load units, 5 load current detecting units
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail.Should be understood that these embodiment just in order to demonstrate the invention, but not limit the scope of the invention by any way.
As shown in Figure 1, on the main inversion circuit of inverter, connect stand-by circuit, this stand-by circuit is connected to form by control unit 1, insulating power supply unit 2, switch control unit 3 and detecting unit 4, control unit 1 connects insulating power supply unit 2, insulating power supply unit 2 connects switch control unit 3, and switch control unit 3 connects control unit 1 and connects load unit 4 by load current detecting unit 5.
Example 1: as shown in Figure 2, control unit receives the airborne signals that AC side is sent here, removes to close the power supply of main inversion circuit immediately by the control power port, and (general recommendations was 3 seconds) startup once has or not load detecting at set intervals; When the control unit starting load detects, pulse-generating circuit generates high-frequency drive, drive T1 by R1, Q1, the secondary of T1 produces the direct voltage about the 50V that is about the 200MS duration by D2, C4, this moment, control unit was carried control end with the isolating switch closure by output again, isolating switch can be light lotus root relay, common direct current relay etc., and the direct current about the 50V that the secondary of T1 produces just directly has been linked on the output port of inverter by R3, U2; Be connected to power consumption equipment on the output port as inverter this moment, then will have electric current to flow through on the U2, and the load current detection port then send a signal to give control unit, allows control unit start main inversion circuit; As there not being power consumption equipment on the output port, then will there be electric current to flow through on the U2, the load current detection port does not then send a signal to control unit, and control unit continues starting load trace routine intermittently.
Example 2: as shown in Figure 3, control unit receives the airborne signals that AC side is sent here, removes to close the power supply of main inversion circuit immediately by the control power port, and (general recommendations was 3 seconds) startup once has or not load detecting at set intervals; When the control unit starting load detects, pulse-generating circuit generates high-frequency drive, drive T1 by R1, Q1, the secondary of T1 produces the direct voltage about the 50V that is about the 200MS duration by D2, C4, this voltage starts Q2 by the voltage stabilizing circuit that R2 and ZD1 form, and the direct current about the 50V that the secondary of T1 produces just directly has been linked on the output port of inverter by D4, R3, I (current transformer); Be connected to power consumption equipment on the output port as inverter this moment, then will have electric current to flow through on the current transformer I, and the load current detection port then send a signal to give control unit, allows control unit start main inversion circuit; As there not being power consumption equipment on the output port, then will there be electric current to flow through on the I, the load current detection port does not then send a signal to control unit, and control unit continues starting load trace routine intermittently.
Claims (2)
1. ultralow-power standby circuit of inverter power supply, it is characterized in that: on the main inversion circuit of inverter, connect stand-by circuit, this stand-by circuit is connected to form by control unit (1), insulating power supply unit (2), switch control unit (3) and load current detecting unit (5), control unit (1) connects insulating power supply unit (2), insulating power supply unit (2) connects switch control unit (3), and switch control unit (3) connects control unit (1) and connects load unit (4) by load current detecting unit (5); Control unit (1) is to close main inversion circuit according to the airborne signals that AC side is sent here, makes that the voltage on the load unit (4) is 0, then starting load current detecting unit (5); Control unit (1) is that the load of the weak current signal judgment device of taking out according to load current detecting unit (5) has or not, thereby whether decision starts main inversion circuit.
2. ultralow-power standby circuit of inverter power supply according to claim 1 is characterized in that: the voltage that insulating power supply unit (2) produce is the direct current about 50V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100279818A CN101557160B (en) | 2009-05-15 | 2009-05-15 | Ultralow-power standby circuit of inverter power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100279818A CN101557160B (en) | 2009-05-15 | 2009-05-15 | Ultralow-power standby circuit of inverter power supply |
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| Publication Number | Publication Date |
|---|---|
| CN101557160A CN101557160A (en) | 2009-10-14 |
| CN101557160B true CN101557160B (en) | 2011-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100279818A Expired - Fee Related CN101557160B (en) | 2009-05-15 | 2009-05-15 | Ultralow-power standby circuit of inverter power supply |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102662345B (en) * | 2012-05-31 | 2014-05-14 | 青岛海信电器股份有限公司 | Zero-power-consumption standby circuit |
| CN104181471B (en) * | 2013-05-28 | 2016-12-28 | 阳光电源股份有限公司 | A kind of inverter power consumption monitoring method and apparatus |
| CN108512446B (en) * | 2018-03-30 | 2023-12-22 | 深圳市华宝新能源股份有限公司 | Alternating current power supply device |
| CN110138200B (en) * | 2019-06-24 | 2021-11-02 | 深圳前海云充科技有限公司 | Inverter power saving method capable of automatically sensing load and automatically starting up |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1473387A (en) * | 2001-07-18 | 2004-02-04 | ���ṫ˾ | Switching power supply device |
| CN2785233Y (en) * | 2005-02-03 | 2006-05-31 | 北海新未来信息产业股份有限公司深圳分公司 | Modularization parallel connection inversion power supply equipment |
| EP1746713A1 (en) * | 2004-03-24 | 2007-01-24 | Sharp Kabushiki Kaisha | Inverter system |
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2009
- 2009-05-15 CN CN2009100279818A patent/CN101557160B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1473387A (en) * | 2001-07-18 | 2004-02-04 | ���ṫ˾ | Switching power supply device |
| EP1746713A1 (en) * | 2004-03-24 | 2007-01-24 | Sharp Kabushiki Kaisha | Inverter system |
| CN2785233Y (en) * | 2005-02-03 | 2006-05-31 | 北海新未来信息产业股份有限公司深圳分公司 | Modularization parallel connection inversion power supply equipment |
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| CN101557160A (en) | 2009-10-14 |
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