CN202872675U - Power supply device having low standby power consumption - Google Patents
Power supply device having low standby power consumption Download PDFInfo
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- CN202872675U CN202872675U CN2012205686644U CN201220568664U CN202872675U CN 202872675 U CN202872675 U CN 202872675U CN 2012205686644 U CN2012205686644 U CN 2012205686644U CN 201220568664 U CN201220568664 U CN 201220568664U CN 202872675 U CN202872675 U CN 202872675U
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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
Abstract
The utility model discloses a power supply device having low standby power consumption, which is applied to an electronic device and an alternating current power device. The power supply device having low standby power consumption contains an output switch unit which is electrically connected to the electronic device, a load detection unit which is electrically connected to the electronic device and the output switch unit, an intermittent driving unit which is electrically connected to the output switch unit and the load detection unit, a no-load detection unit which is electrically to the output switch unit and the intermittent driving unit, a starting unit which is electrically connected to the intermittent driving unit, a power factor correction and pulse width modulation controller which is electrically connected to the starting unit and the no-load detection unit, a secondary side transformer coil which is electrically connected to the no-load detection unit and the output switch unit, and a main converter which is electrically connected to the alternating current power device, the power factor correction and pulse width modulation controller and the secondary side transformer coil.
Description
Technical field
The utility model relates to a kind of power supply device, particularly a kind of power supply device with low standby power loss.
Background technology
Power supply device is to change AC power to become DC power supply, and the electronic installation driving voltage is provided.
When electronic installation does not use or when power supply device removed, power supply device namely entered standby mode; If the stand-by power consumption of power supply device when standby mode is lower, the usefulness of power supply device is namely better, more can save the energy.
Yet the shortcoming of existing power supply feeding mechanism namely is that stand-by power consumption is low not at present, has still consumed the many energy under standby mode; Therefore, the power supply device that how can research and development goes out to have low standby power loss is very important.
The utility model content
For improving the shortcoming of above-mentioned prior art, the purpose of this utility model is to provide a kind of power supply device with low standby power loss.
For reaching above-mentioned purpose, the utility model is carried a kind of power supply device with low standby power loss, is applied to an electronic installation and an ac power supply apparatus, and this power supply device with low standby power loss comprises:
One output switching element is electrically connected to this electronic installation;
One has the detecting unit of carrying, and is electrically connected to this electronic installation and this output switching element;
One driver element intermittently is electrically connected to this output switching element and this has the detecting unit of carrying;
One no-load detecting unit, be electrically connected to this output switching element and this at intermittence driver element;
One start unit is electrically connected to driver element at this at intermittence;
One power factor correction function and PWM controller are electrically connected to this start unit and this no-load detecting unit;
One secondary side transformer coil is electrically connected to this no-load detecting unit and this output switching element; And
One main transducer is electrically connected to this ac power supply apparatus, this power factor correction function and PWM controller and this secondary side transformer coil.
The above-mentioned power supply device with low standby power loss, wherein this, driver element comprised at intermittence:
One discharge capacity, being electrically connected to this has the detecting unit of carrying;
One first operational amplifier is electrically connected to this discharge capacity, and this first operational amplifier comprises one first operational amplifier output terminal, one first operational amplifier first input end and one first operational amplifier the second input; And
One first optical coupler emission part is electrically connected to this discharge capacity and this first operational amplifier output terminal.
The above-mentioned power supply device with low standby power loss, wherein this, driver element also comprised at intermittence:
One first resistance is electrically connected to this first operational amplifier output terminal and this first optical coupler emission part;
One first electric capacity is electrically connected to this first operational amplifier output terminal and this first resistance;
One second resistance is electrically connected to this first operational amplifier first input end and this discharge capacity;
One the 3rd resistance is electrically connected to this first operational amplifier first input end and this second resistance;
One second electric capacity is electrically connected to this first operational amplifier the second input;
One first diode is electrically connected to this first operational amplifier the second input;
One the 4th resistance is electrically connected to this no-load detecting unit, this output switching element and this first diode;
One reference voltage source is electrically connected to this first diode and the 4th resistance; And
One second diode is electrically connected to this no-load detecting unit, this output switching element and this discharge capacity.
The above-mentioned power supply device with low standby power loss, wherein this has the detecting unit of carrying to comprise:
One second operational amplifier, be electrically connected to this discharge capacity, this second operational amplifier comprises one second operational amplifier output terminal, one second operational amplifier first input end and one second operational amplifier the second input, and this second operational amplifier output terminal is electrically connected to this first operational amplifier output terminal;
One the 5th resistance is electrically connected to this second operational amplifier first input end and this discharge capacity;
One the 6th resistance is electrically connected to this second operational amplifier first input end and the 5th resistance;
One the 7th resistance is electrically connected to this second operational amplifier the second input and the 5th resistance;
One the 8th resistance is electrically connected to the 7th resistance;
One the first transistor is electrically connected to this second operational amplifier second input, the 7th resistance, the 8th resistance, this output switching element and this electronic installation; And
One the 9th resistance is electrically connected to this first transistor, this output switching element and this electronic installation.
The above-mentioned power supply device with low standby power loss, wherein this no-load detecting unit comprises:
One second optical coupler emission part, be electrically connected to this output switching element and this at intermittence driver element;
One control subelement is electrically connected to this second optical coupler emission part and this output switching element;
1 the tenth resistance is electrically connected to this output switching element, this driver element, this second optical coupler emission part and this control subelement at intermittence;
1 the 11 resistance is electrically connected to this control subelement and the tenth resistance;
1 the 12 resistance is electrically connected to this control subelement;
One the 3rd electric capacity is electrically connected to this control subelement and the 12 resistance;
1 the 13 resistance is electrically connected to this control subelement, the 12 resistance and the 3rd electric capacity;
One the 4th electric capacity is electrically connected to the 13 resistance;
One the 3rd diode is electrically connected to the 13 resistance and the 4th electric capacity;
One first Zener diode is electrically connected to the 3rd diode and this secondary side transformer coil; And
One second optical coupler acceptance division is electrically connected to this second optical coupler emission part and this power factor correction function and PWM controller.
The above-mentioned power supply device with low standby power loss, wherein this output switching element comprises:
One transistor seconds is electrically connected to driver element at this, this no-load detecting unit and this electronic installation at intermittence;
1 the 14 resistance is electrically connected to driver element at this, this no-load detecting unit and this transistor seconds at intermittence;
1 the 15 resistance is electrically connected to the 14 resistance and this transistor seconds;
One the 3rd transistor is electrically connected to the 15 resistance;
1 the 16 resistance is electrically connected to the 3rd transistor; And
1 the 17 resistance is electrically connected to the 3rd transistor, the 16 resistance and this no-load detecting unit.
The above-mentioned power supply device with low standby power loss, wherein this start unit comprises:
One the 4th transistor is electrically connected to this power factor correction function and PWM controller and this main transducer;
One second Zener diode is electrically connected to the 4th transistor;
1 the 18 resistance is electrically connected to this main transducer, the 4th transistor and this second Zener diode;
One the 5th transistor is electrically connected to the 4th transistor, this second Zener diode and the 18 resistance;
One the 5th electric capacity is electrically connected to the 5th transistor; And
One the 3rd Zener diode is electrically connected to the 5th transistor.
The above-mentioned power supply device with low standby power loss, wherein this start unit also comprises:
1 the 19 resistance is electrically connected to the 5th transistor;
One first optical coupler acceptance division is electrically connected to this first optical coupler emission part and the 19 resistance;
One the 4th diode is electrically connected to the 5th transistor;
One the 20 resistance is electrically connected to the 4th diode;
One the 6th electric capacity is electrically connected to the 20 resistance; And
One the 5th diode is electrically connected to the 20 resistance and the 6th electric capacity.
The above-mentioned power supply device with low standby power loss wherein also comprises:
One secondary side output rectifier is electrically connected to this secondary side transformer coil and this no-load detecting unit;
One output filter is electrically connected to this secondary side output rectifier, this driver element and this output switching element at intermittence; And
One feedback circuit is electrically connected to this output filter and this power factor correction function and PWM controller.
The above-mentioned power supply device with low standby power loss wherein also comprises:
One auxiliary power circuit is electrically connected to this main transducer and this power factor correction function and PWM controller;
One booster stage circuit is electrically connected to this main transducer, this power factor correction function and PWM controller and this start unit;
One power factor correction function feedback circuit is electrically connected to this main transducer, this power factor correction function and PWM controller, this start unit and this booster stage circuit;
One bridge rectifier is electrically connected to this booster stage circuit; And
One Electromagnetic interference filter is electrically connected to this bridge rectifier and this ac power supply apparatus.
Below in conjunction with the drawings and specific embodiments the utility model is described in detail, but not as to restriction of the present utility model.
Description of drawings
Fig. 1 is the power supply device block diagram with low standby power loss of the present utility model;
Fig. 2 is no-load detecting unit block diagram of the present utility model;
Fig. 3 is output switching element block diagram of the present utility model;
Fig. 4 is driver element block diagram at intermittence of the present utility model;
Fig. 5 is start unit block diagram of the present utility model;
Fig. 6 is the detecting unit block diagram of carrying that has of the present utility model.
Wherein, Reference numeral
Ac power supply apparatus 30
The detecting unit 104 of carrying is arranged
No-load detecting unit 108
Power factor correction function and PWM controller 112
Secondary side transformer coil 114
Secondary side output rectifier 118
Power factor correction function feedback circuit 128
The 14 resistance 10204
The 15 resistance 10206
The 3rd transistor 10208
The 16 resistance 10210
The 17 resistance 10212
The second operational amplifier 10402
The 5th resistance 10404
The 6th resistance 10406
The 7th resistance 10408
The 8th resistance 10410
The first transistor 10412
The 9th resistance 10414
The second operational amplifier output terminal 10416
The second operational amplifier first input end 10418
The second operational amplifier the second input 10420
The first operational amplifier 10604
The first optical coupler emission part 10606
The first resistance 10608
The first electric capacity 10610
The second resistance 10612
The 3rd resistance 10614
The second electric capacity 10616
The first diode 10618
The 4th resistance 10620
The second diode 10624
The first operational amplifier output terminal 10626
The first operational amplifier first input end 10628
The first operational amplifier the second input 10630
Secondary side voltage provides unit 10632
Primary side voltage provides unit 10634
The second optical coupler emission part 10802
The tenth resistance 10806
The 11 resistance 10808
The 12 resistance 10810
The 3rd electric capacity 10812
The 13 resistance 10814
The 4th electric capacity 10816
The 3rd diode 10818
The first Zener diode 10820
The second optical coupler acceptance division 10822
The 4th transistor 11002
The second Zener diode 11004
The 18 resistance 11006
The 5th transistor 11008
The 5th electric capacity 11010
The 3rd Zener diode 11012
The 19 resistance 11014
The first optical coupler acceptance division 11016
The 4th diode 11018
The 20 resistance 11020
The 6th electric capacity 11022
The 5th diode 11024
Embodiment
Please refer to Fig. 1, it is the power supply device block diagram with low standby power loss of the present utility model; One power supply device 10 with low standby power loss is to be applied to an electronic installation 20 and an ac power supply apparatus 30.
This power supply device 10 with low standby power loss comprises an output switching element 102, one has the detecting unit 104 of carrying, one driver element 106 intermittently, one no-load detecting unit 108, one start unit 110, one power factor correction function and PWM controller 112, one secondary side transformer coil 114, one main transducer 116, one secondary side output rectifier 118, one output filter 120, one feedback circuit 122, one auxiliary power circuit 124, one booster stage circuit 126, one power factor correction function feedback circuit 128, one bridge rectifier 130 and an Electromagnetic interference filter 132.
This power factor correction function and PWM controller 112 are electrically connected to this no-load detecting unit 108, this start unit 110, this main transducer 116, this feedback circuit 122, this auxiliary power circuit 124, this booster stage circuit 126 and this power factor correction function feedback circuit 128; This no-load detecting unit 108 is electrically connected to this output switching element 102, this driver element 106, this secondary side transformer coil 114 and this secondary side output rectifier 118 at intermittence.
This Electromagnetic interference filter 132 is electrically connected to this ac power supply apparatus 30 and this bridge rectifier 130; This booster stage circuit 126 is electrically connected to this bridge rectifier 130 and this main transducer 116, this start unit 110 and this power factor correction function feedback circuit 128; This main transducer 116 is electrically connected to this auxiliary power circuit 124 and this secondary side transformer coil 114; This secondary side output rectifier 118 is electrically connected to this secondary side transformer coil 114 and this output filter 120.
This feedback circuit 122 is electrically connected to this output filter 120; This output switching element 102 is electrically connected to this electronic installation 20, this has and carries a detecting unit 104, this driver element 106 and this output filter 120 at intermittence; This has and carries a detecting unit 104 and be electrically connected to driver element 106 at this at intermittence; This, driver element 106 was electrically connected to this start unit 110 at intermittence.
Flow process of the present utility model is as follows:
When this electronic installation 20 when this power supply device 10 with low standby power loss removes, this no-load detecting unit 108 utilizes the wave form varies (frequency and work period) of the pulse-width modulation that detects these secondary side transformer coils 114 to learn; Then, this no-load detecting unit 108 is closed this output switching element 102, and this no-load detecting unit 108 is to utilize one second optical coupler emission part 10802 and one second optical coupler acceptance division 10822(as shown in Figure 2) namely this has power supply device 10 dormancy of low standby power loss to close this power factor correction function and PWM controller 112(, uses energy-conservation).
When this had power supply device 10 dormancy of low standby power loss, this had and carries a detecting unit 104 and namely detect this electronic installation 20 and whether reconnect this power supply device with low standby power loss 10; When this electronic installation 20 reconnects the power supply device 10 that this has low standby power loss, this has and carries a detecting unit 104 and namely drive driver element 106 at this at intermittence, this is driver element 106 these start units 110 of driving intermittently, and this start unit 110 drives these power factor correction functions and PWM controller 112(namely starts this power supply device with low standby power loss 10).
At this moment, this no-load detecting unit 108 detects this electronic installation 20 and is connected to this power supply device with low standby power loss 10, so this no-load detecting unit 108 can not closed this output switching element 102 and this power factor correction function and PWM controller 112.
Wherein, when this has power supply device 10 dormancy of low standby power loss, be to utilize a discharge capacity 10602(as shown in Figure 4) discharge with provide power supply give this have carry detecting unit 104 and this at intermittence the associated components such as driver element 106 (also therefore this have carry detecting unit 104 and this at intermittence the associated components such as driver element 106 the power consumption of element necessary minimum).
And the accumulate of this discharge capacity 10602 can be depleted; Therefore, when this has power supply device 10 dormancy of low standby power loss, this, driver element 106 was to drive this start unit 110 every a scheduled time (for example being 300 seconds) at intermittence, this start unit 110 drives this power factor correction function and PWM controller 112(namely wakes this power supply device with low standby power loss 10 up), use this discharge capacity 10602 is charged.
Moreover, when this power supply device 10 with low standby power loss is waken up so that this discharge capacity 10602 is charged, if this no-load detecting unit 108 detects this electronic installation 20 and does not still reconnect the power supply device 10 that has low standby power loss to this, then as above-mentioned, then this no-load detecting unit 108 is namely closed this output switching element 102 and this power factor correction function and PWM controller 112, and this power supply device 10 with low standby power loss was waken up every this scheduled time.
Wherein, this power factor correction function and PWM controller 112 are the core of this power supply device with low standby power loss 10, are to control these main transducer 116 associated components such as grade to convert AC power to DC power supply.
Please refer to Fig. 2, it is no-load detecting unit block diagram of the present utility model.This no-load detecting unit 108 comprises this second optical coupler emission part 10802, a control subelement 10804,1 the tenth resistance 10806,1 the 11 resistance 10808,1 the 12 resistance 10810, one the 3rd electric capacity 10812,1 the 13 resistance 10814, one the 4th electric capacity 10816, one the 3rd diode 10818, one first Zener diode 10820 and this second optical coupler acceptance division 10822.
The 17 a resistance 10212(that this control subelement 10804 is electrically connected to this second optical coupler emission part 10802, this output switching element 102 is as shown in Figure 3), the tenth resistance 10806, the 11 resistance 10808, the 12 resistance 10810, the 3rd electric capacity 10812 and the 13 resistance 10814; This second optical coupler emission part 10802 be electrically connected to the tenth resistance 10806 these output switching elements 102 and this at intermittence driver element 106 and this second optical coupler acceptance division 10822.
The 3rd diode 10818 is electrically connected to the 13 resistance 10814, the 4th electric capacity 10816 and this first Zener diode 10820; This first Zener diode 10820 is electrically connected to this secondary side transformer coil 114; This second optical coupler acceptance division 10822 is electrically connected to this power factor correction function and PWM controller 112.
Please refer to Fig. 3, it is output switching element block diagram of the present utility model.This output switching element 102 comprises a transistor seconds 10202,1 the 14 resistance 10204,1 the 15 resistance 10206, one the 3rd transistor 10208,1 the 16 resistance 10210 and the 17 resistance 10212.
This transistor seconds 10202 is electrically connected to this electronic installation 20, this has and carries a detecting unit 104, this driver element 106, this no-load detecting unit 108, the 14 resistance 10204 and the 15 resistance 10206 at intermittence; The 3rd transistor 10208 is electrically connected to the 15 resistance 10206, the 16 resistance 10210 and the 17 resistance 10212.
When this output switching element 102 is closed, this output switching element 102 is with so that this has output and 20 isolation of this electronic installation of the power supply device 10 of low standby power loss, whether reconnects the power supply device 10 that has low standby power loss to this so this has the detecting unit 104 of carrying can merely detect this electronic installation 20.
Please refer to Fig. 4, it is driver element block diagram at intermittence of the present utility model.This, driver element 106 comprised this discharge capacity 10602, one first operational amplifier 10604, one first optical coupler emission part 10606, one first resistance 10608, one first electric capacity 10610, one second resistance 10612, one the 3rd resistance 10614, one second electric capacity 10616, one first diode 10618, one the 4th resistance 10620, a reference voltage source 10622 and one second diode 10624 at intermittence.This first operational amplifier 10604 comprises one first operational amplifier output terminal 10626, one first operational amplifier first input end 10628 and one first operational amplifier the second input 10630.
This first operational amplifier output terminal 10626 is electrically connected to this first resistance 10608, this has detecting unit 104 and this first electric capacity 10610 of carrying; This first operational amplifier first input end 10628 is electrically connected to this second resistance 10612 and the 3rd resistance 10614; This first operational amplifier second input 10630 is electrically connected to this second electric capacity 10616 and this first diode 10618.
This discharge capacity 10602 is electrically connected to this second diode 10624, this first operational amplifier 10604, this first optical coupler emission part 10606, this second resistance 10612 and this has the detecting unit 104 of carrying; This reference voltage source 10622 is electrically connected to this first diode 10618 and the 4th resistance 10620; This first resistance 10608 is electrically connected to this first optical coupler emission part 10606.
This power supply device 10 with low standby power loss also comprises a secondary side voltage provides unit 10632, and it is to provide power supply to give the element of this power supply device with low standby power loss 10 10 in running order times in order to the power supply device that has low standby power loss at this that this secondary side voltage provides unit 10632; This second diode 10624 is electrically connected to the 4th resistance 10620, this output switching element 102, this no-load detecting unit 108 and this secondary side voltage unit 10632 is provided.
The voltage drop slope in the loop that this second resistance 10612 and the 3rd resistance 10614 consist of is greater than the voltage drop slope of deciding voltage reference points that is made of this second electric capacity 10616, this first diode 10618, this reference voltage source 10622 and the 4th resistance 10620; So when the voltage of this first operational amplifier first input end 10628 was lower than the voltage of this first operational amplifier the second input 10630, the output logic of this first operational amplifier 10604 namely produced change.
When the logic state of this first operational amplifier output terminal 10626 is 1, this the first optical coupler emission part 10606 does not transmit light signal to the first optical coupler acceptance division 11016(as shown in Figure 5), so this power factor correction function and PWM controller 112 are for closing.
When the logic state of this first operational amplifier output terminal 10626 was 0, this first optical coupler emission part 10606 transmitted light signal to this first optical coupler acceptance division 11016, so this power factor correction function and PWM controller 112 are for starting.
In other words, when this power supply device 10 with low standby power loss in working order the time, this first optical coupler emission part 10606 has a little electric current and flows through, and the logic state of this first operational amplifier output terminal 10626 is 0; And when this power supply device 10 with low standby power loss during in resting state, this first optical coupler emission part 10606 does not have electric current and flows through, and the logic state of this first operational amplifier output terminal 10626 is 1.So the antilogical design reaches 300 seconds so that the faint electric energy of this discharge capacity 10602 can support this scheduled time.
Please refer to Fig. 5, it is start unit block diagram of the present utility model.This start unit 110 comprises one the 4th transistor 11002, one second Zener diode 11004,1 the 18 resistance 11006, one the 5th transistor 11008, one the 5th electric capacity 11010, one the 3rd Zener diode 11012,1 the 19 resistance 11014, this first optical coupler acceptance division 11016, one the 4th diode 11018, one the 20 resistance 11020, one the 6th electric capacity 11022 and one the 5th diode 11024.
The 5th transistor 11008 is electrically connected to the 4th transistor 11002, this second Zener diode 11004, the 18 resistance 11006, the 5th electric capacity 11010, the 3rd Zener diode 11012, the 19 resistance 11014 and the 4th diode 11018; The 19 resistance 11014 is electrically connected to this first optical coupler acceptance division 11016.
This power supply device 10 with low standby power loss also comprises a primary side voltage provides unit 10634, and it is to provide power supply to give the element of this power supply device with low standby power loss 10 10 in running order times in order to the power supply device that has low standby power loss at this that this primary side voltage provides unit 10634; The 5th diode 11024 is electrically connected to this primary side voltage unit 10634, the 20 resistance 11020 and the 6th electric capacity 11022 is provided; The 20 resistance 11020 is electrically connected to the 4th diode 11018; The 4th transistor 11002 is electrically connected to this power factor correction function and PWM controller 112, this main transducer 116, this booster stage circuit 126, this power factor correction function feedback circuit 128 and the 18 resistance 11006.
Please refer to Fig. 6, it is the detecting unit block diagram of carrying that has of the present utility model.This has the detecting unit 104 of carrying to comprise one second operational amplifier 10402, one the 5th resistance 10404, one the 6th resistance 10406, one the 7th resistance 10408, one the 8th resistance 10410, a first transistor 10412 and one the 9th resistance 10414.This second operational amplifier 10402 comprises one second operational amplifier output terminal 10416, one second operational amplifier first input end 10418 and one second operational amplifier the second input 10420.
This second operational amplifier 10402 is electrically connected to this discharge capacity 10602; This second operational amplifier output terminal 10416 is electrically connected to this first operational amplifier output terminal 10626; The 7th resistance 10408 be electrically connected to the 8th resistance 10410, this first transistor 10412, the 9th resistance 10414, this second operational amplifier second input 10420, the 5th resistance 10404 and this at intermittence driver element 106.
This second operational amplifier first input end 10418 is electrically connected to the 5th resistance 10404 and the 6th resistance 10406; This first transistor 10412 is electrically connected to the 8th resistance 10410, the 9th resistance 10414, this electronic installation 20 and this output switching element 102.
When this had the power supply device 10 of low standby power loss when these electronic installation 20 connections, it was 0 that the voltage difference between this second operational amplifier first input end 10418 and this second operational amplifier the second input 10420 will cause the logic state of this second operational amplifier output terminal 10416; By this, these the first optical coupler emission part 10606 conductings, this power supply device 10 with low standby power loss is unlocked.
Moreover, consider the error of element, have and carry electric current that detecting unit 104 detects this electronic installation 20 and just be considered as this real electronic installation 20 greater than 30mA and connect this and have the power supply device 10 of low standby power loss if this power supply device 10 with low standby power loss also can be designed to this no-load detecting unit 108 and this.
Emphasis of the present utility model is: when this electronic installation 20 when this power supply device 10 with low standby power loss removes, this no-load detecting unit 108 is to utilize this secondary side transformer coil 114 of detection to learn, this no-load detecting unit 108 is namely closed this output switching element 102 and this power factor correction function and PWM controller 112, and this, driver element 106 drove this start unit 110 every this scheduled time at intermittence, and this start unit 110 drives this power factor correction function and PWM controller 112.And when this electronic installation 20 connects this and has the power supply device 10 of low standby power loss, this has the detecting unit 104 of carrying to detect, this has and carries a detecting unit 104 and namely drive driver element 106 at this at intermittence, this is driver element 106 these start units 110 of driving intermittently, and this start unit 110 drives this power factor correction function and PWM controller 112.
Certainly; the utility model also can have other various embodiments; in the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.
Claims (10)
1. the power supply device with low standby power loss is applied to an electronic installation and an ac power supply apparatus, it is characterized in that, this power supply device with low standby power loss comprises:
One output switching element is electrically connected to this electronic installation;
One has the detecting unit of carrying, and is electrically connected to this electronic installation and this output switching element;
One driver element intermittently is electrically connected to this output switching element and this has the detecting unit of carrying;
One no-load detecting unit, be electrically connected to this output switching element and this at intermittence driver element;
One start unit is electrically connected to driver element at this at intermittence;
One power factor correction function and PWM controller are electrically connected to this start unit and this no-load detecting unit;
One secondary side transformer coil is electrically connected to this no-load detecting unit and this output switching element; And
One main transducer is electrically connected to this ac power supply apparatus, this power factor correction function and PWM controller and this secondary side transformer coil.
2. the power supply device with low standby power loss according to claim 1 is characterized in that, this, driver element comprised at intermittence:
One discharge capacity, being electrically connected to this has the detecting unit of carrying;
One first operational amplifier is electrically connected to this discharge capacity, and this first operational amplifier comprises one first operational amplifier output terminal, one first operational amplifier first input end and one first operational amplifier the second input; And
One first optical coupler emission part is electrically connected to this discharge capacity and this first operational amplifier output terminal.
3. the power supply device with low standby power loss according to claim 2 is characterized in that, this, driver element also comprised at intermittence:
One first resistance is electrically connected to this first operational amplifier output terminal and this first optical coupler emission part;
One first electric capacity is electrically connected to this first operational amplifier output terminal and this first resistance;
One second resistance is electrically connected to this first operational amplifier first input end and this discharge capacity;
One the 3rd resistance is electrically connected to this first operational amplifier first input end and this second resistance;
One second electric capacity is electrically connected to this first operational amplifier the second input;
One first diode is electrically connected to this first operational amplifier the second input;
One the 4th resistance is electrically connected to this no-load detecting unit, this output switching element and this first diode;
One reference voltage source is electrically connected to this first diode and the 4th resistance; And
One second diode is electrically connected to this no-load detecting unit, this output switching element and this discharge capacity.
4. the power supply device with low standby power loss according to claim 3 is characterized in that, this has the detecting unit of carrying to comprise:
One second operational amplifier, be electrically connected to this discharge capacity, this second operational amplifier comprises one second operational amplifier output terminal, one second operational amplifier first input end and one second operational amplifier the second input, and this second operational amplifier output terminal is electrically connected to this first operational amplifier output terminal;
One the 5th resistance is electrically connected to this second operational amplifier first input end and this discharge capacity;
One the 6th resistance is electrically connected to this second operational amplifier first input end and the 5th resistance;
One the 7th resistance is electrically connected to this second operational amplifier the second input and the 5th resistance;
One the 8th resistance is electrically connected to the 7th resistance;
One the first transistor is electrically connected to this second operational amplifier second input, the 7th resistance, the 8th resistance, this output switching element and this electronic installation; And
One the 9th resistance is electrically connected to this first transistor, this output switching element and this electronic installation.
5. the power supply device with low standby power loss according to claim 4 is characterized in that, this no-load detecting unit comprises:
One second optical coupler emission part, be electrically connected to this output switching element and this at intermittence driver element;
One control subelement is electrically connected to this second optical coupler emission part and this output switching element;
1 the tenth resistance is electrically connected to this output switching element, this driver element, this second optical coupler emission part and this control subelement at intermittence;
1 the 11 resistance is electrically connected to this control subelement and the tenth resistance;
1 the 12 resistance is electrically connected to this control subelement;
One the 3rd electric capacity is electrically connected to this control subelement and the 12 resistance;
1 the 13 resistance is electrically connected to this control subelement, the 12 resistance and the 3rd electric capacity;
One the 4th electric capacity is electrically connected to the 13 resistance;
One the 3rd diode is electrically connected to the 13 resistance and the 4th electric capacity;
One first Zener diode is electrically connected to the 3rd diode and this secondary side transformer coil; And
One second optical coupler acceptance division is electrically connected to this second optical coupler emission part and this power factor correction function and PWM controller.
6. the power supply device with low standby power loss according to claim 5 is characterized in that, this output switching element comprises:
One transistor seconds is electrically connected to driver element at this, this no-load detecting unit and this electronic installation at intermittence;
1 the 14 resistance is electrically connected to driver element at this, this no-load detecting unit and this transistor seconds at intermittence;
1 the 15 resistance is electrically connected to the 14 resistance and this transistor seconds;
One the 3rd transistor is electrically connected to the 15 resistance;
1 the 16 resistance is electrically connected to the 3rd transistor; And
1 the 17 resistance is electrically connected to the 3rd transistor, the 16 resistance and this no-load detecting unit.
7. the power supply device with low standby power loss according to claim 6 is characterized in that, this start unit comprises:
One the 4th transistor is electrically connected to this power factor correction function and PWM controller and this main transducer;
One second Zener diode is electrically connected to the 4th transistor;
1 the 18 resistance is electrically connected to this main transducer, the 4th transistor and this second Zener diode;
One the 5th transistor is electrically connected to the 4th transistor, this second Zener diode and the 18 resistance;
One the 5th electric capacity is electrically connected to the 5th transistor; And
One the 3rd Zener diode is electrically connected to the 5th transistor.
8. the power supply device with low standby power loss according to claim 7 is characterized in that, this start unit also comprises:
1 the 19 resistance is electrically connected to the 5th transistor;
One first optical coupler acceptance division is electrically connected to this first optical coupler emission part and the 19 resistance;
One the 4th diode is electrically connected to the 5th transistor;
One the 20 resistance is electrically connected to the 4th diode;
One the 6th electric capacity is electrically connected to the 20 resistance; And
One the 5th diode is electrically connected to the 20 resistance and the 6th electric capacity.
9. the power supply device with low standby power loss according to claim 8 is characterized in that, also comprises:
One secondary side output rectifier is electrically connected to this secondary side transformer coil and this no-load detecting unit;
One output filter is electrically connected to this secondary side output rectifier, this driver element and this output switching element at intermittence; And
One feedback circuit is electrically connected to this output filter and this power factor correction function and PWM controller.
10. the power supply device with low standby power loss according to claim 9 is characterized in that, also comprises:
One auxiliary power circuit is electrically connected to this main transducer and this power factor correction function and PWM controller;
One booster stage circuit is electrically connected to this main transducer, this power factor correction function and PWM controller and this start unit;
One power factor correction function feedback circuit is electrically connected to this main transducer, this power factor correction function and PWM controller, this start unit and this booster stage circuit;
One bridge rectifier is electrically connected to this booster stage circuit; And
One Electromagnetic interference filter is electrically connected to this bridge rectifier and this ac power supply apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205686644U CN202872675U (en) | 2012-10-31 | 2012-10-31 | Power supply device having low standby power consumption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205686644U CN202872675U (en) | 2012-10-31 | 2012-10-31 | Power supply device having low standby power consumption |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202872675U true CN202872675U (en) | 2013-04-10 |
Family
ID=48039360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205686644U Expired - Lifetime CN202872675U (en) | 2012-10-31 | 2012-10-31 | Power supply device having low standby power consumption |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202872675U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184341A (en) * | 2013-05-27 | 2014-12-03 | 群光电能科技股份有限公司 | Power supply device |
| CN107134918A (en) * | 2016-02-29 | 2017-09-05 | 上海鸣志自动控制设备有限公司 | It is a kind of to be used to reduce the control device of power standby power consumption |
| CN107449953A (en) * | 2016-05-31 | 2017-12-08 | 群光电能科技股份有限公司 | Input voltage outage detection device and there is its power supply unit |
| CN107592019A (en) * | 2016-07-06 | 2018-01-16 | 群光电能科技股份有限公司 | Adapter with low idling consumption and the electronic system with low idling consumption |
-
2012
- 2012-10-31 CN CN2012205686644U patent/CN202872675U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184341A (en) * | 2013-05-27 | 2014-12-03 | 群光电能科技股份有限公司 | Power supply device |
| CN104184341B (en) * | 2013-05-27 | 2017-04-12 | 群光电能科技股份有限公司 | Power supply device |
| CN107134918A (en) * | 2016-02-29 | 2017-09-05 | 上海鸣志自动控制设备有限公司 | It is a kind of to be used to reduce the control device of power standby power consumption |
| CN107449953A (en) * | 2016-05-31 | 2017-12-08 | 群光电能科技股份有限公司 | Input voltage outage detection device and there is its power supply unit |
| CN107449953B (en) * | 2016-05-31 | 2020-01-07 | 群光电能科技股份有限公司 | Input voltage power-off detection device and power supply with same |
| CN107592019A (en) * | 2016-07-06 | 2018-01-16 | 群光电能科技股份有限公司 | Adapter with low idling consumption and the electronic system with low idling consumption |
| CN107592019B (en) * | 2016-07-06 | 2019-07-02 | 群光电能科技股份有限公司 | Adapter with low idling consumption and the electronic system with low idling consumption |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130410 |
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| CX01 | Expiry of patent term |