CN104184341B - Power supply device - Google Patents
Power supply device Download PDFInfo
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- CN104184341B CN104184341B CN201310462440.4A CN201310462440A CN104184341B CN 104184341 B CN104184341 B CN 104184341B CN 201310462440 A CN201310462440 A CN 201310462440A CN 104184341 B CN104184341 B CN 104184341B
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- 238000006243 chemical reaction Methods 0.000 claims description 16
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- 230000005662 electromechanics Effects 0.000 claims description 2
- 230000000977 initiatory effect Effects 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 14
- 238000004804 winding Methods 0.000 description 12
- 239000003990 capacitor Substances 0.000 description 6
- 230000005669 field effect Effects 0.000 description 4
- 238000002955 isolation Methods 0.000 description 3
- 230000003071 parasitic effect Effects 0.000 description 3
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- 238000005516 engineering process 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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a power supply device which is electrically connected with an alternating current power supply and an electronic system. The power converter is electrically connected to the rectifier, and includes a first power output terminal and a standby power output terminal electrically connected to the electronic system. The controller is electrically connected with the power converter; the power manager is electrically connected to the controller and the electronic system. The switch element is electrically connected with the first power supply output end, the power supply manager and the electronic system, and the switch element is controlled by the power supply manager to switch on or off the electric power which is output by the first power supply output end and transmitted to the electronic system, so that the power consumption in standby is reduced.
Description
Technical field
The present invention relates to a kind of power supply device, more particularly, to a kind of supply of the power supply with low standby power loss dress
Put.
Background technology
Coordinate with reference to Fig. 1, be the circuit block diagram of existing power supply device.Power supply device 1 is connected to a friendship
Stream power supply unit ACP and electronic system PS, power supply device 1 receives the alternating current of AC power supply ACP outputs
Power, and alternating electromotive force is carried out to be transferred to electronic system PS after electric energy conversion.Power supply device 1 is available for operation in normal mode
Or standby mode (standby mode), wherein Normal Mode Operation refers to that power supply device 1 must provide for electronic system PS
Required electric power during operation, implies that in normal mode, is connected to electronic system PS of power supply device 1 in start shape
State；Conversely, holding state refers to that electronic system PS is in off-mode.
Power supply device 1 is attached comprising an EMI FILTER 10, a rectifier 11, a main power source converter 12,
Category power supply changeover device 13, one first controller 14, a second controller 15, a power supervisor 16, one first optoisolator
OC1, one second optoisolator OC2, one the 3rd optoisolator OC3 and one the 4th optoisolator OC4.
EMI FILTER 10 is electrically connected to rectifier 11, and rectifier 11 is electrically connected to main power source converter 12 and attached
Power supply changeover device 13, the first controller 14 is electrically connected to rectifier 11 and main power source converter 12, and second controller 15 is electrically connected
In accessory power converter 13, power supervisor 16 is electrically connected to main power source converter 12 and accessory power converter 13.
First optoisolator OC1 is electrically connected to the one first power output end VA and the first controller of main power source converter 12
14, the second optoisolator OC2 are electrically connected to standby power output end Vsb and second controller of accessory power converter 13
15, the 3rd optoisolator OC3 and the 4th optoisolator OC4 is electrically connected in the controller 14 of power supervisor 16 and first.The
One optoisolator OC1, the second optoisolator OC2, the 3rd optoisolator OC3 and the 4th optoisolator OC4 can be, for example, respectively light
Coupler.
Power supply device 1 receives the alternating electromotive force of AC power supply ACP outputs.Supply in alternating electromotive force input power
After answering device 1, EMI FILTER 10 first filters the electromagnetic interference in alternating electromotive force, and rectifier 11 is electromagnetic interference to be filtered
The alternating electromotive force that ripple device 10 is exported is converted to direct current power output.Active PFC can be added in rectifier 11
(Power Factor Correction) circuit 110, to reduce input current amount.
Main power source converter 12 receives the direct current power of the output of rectifier 11, and main power source converter 12 receives the first controller
14 controls, to change the electric power of the first power output end VA and second source output end VB output.Main power source converter 12 is
DC-DC converter (DC to DC converter), and may be, for example, LLC resonant mode power supply changeover devices, dual forward type
Power supply changeover device (Dual Forward Converter) or single forward power switcher (Single Forward
Converter).Accessory power converter 13 receives the direct current power of the output of rectifier 11, and accessory power converter 13 receives the
Two controllers 15 are controlled, to change the electric power of output.Accessory power converter 13 may be, for example, direction flyback converter (flyback
converter)。
Main power source converter 12 carries out electric energy conversion in normal mode so that electric power and by the based on direct current power conversion
One power output end VA and second source output end VB are exported, and stop electric energy in standby mode and to change do not export main electric power
(implying that the first power output end VA and second source output end VB not output power).No matter accessory power converter 13 is normal
Electric energy conversion is carried out when pattern or standby mode so that DC voltage is converted to stand-by electric and by standby power output end Vsb
Output.Power supply device 1 can be effectively reduced by the output power of main power source converter 12 in standby mode, is stopped
Power supply change-over device 1 standby mode energy resource consumption, to reach the purpose of power saving.
However, power supply device 1 must simultaneously comprising main power source converter 12 and accessory power converter 13, this is caused
The volume of power supply device 1 is big, also, under Normal Mode Operation, main power source converter 12 and accessory power converter 13
Electric energy conversion must be simultaneously carried out, causes energy resource consumption of the power supply device 1 under Normal Mode Operation to increase.
The content of the invention
In view of described in prior art, a technical scheme of this disclosure is to provide a kind of power supply device, power supply
Feeding mechanism has the characteristics of low-power consumption standby and miniaturization.
One embodiment of the technical program provides a kind of power supply device, and power supply device is electrically connected to an exchange
Power supply unit and an electronic system, power supply device receives the alternating electromotive force of AC power supply output, and will exchange
Electric power carries out exporting after electric energy conversion to electronic system, and power supply device includes a rectifier, a power supply changeover device, a control
Device, a power supervisor and a switch element.Rectifier includes a power factor correction circuit, and the rectifier is to by alternating current
Power is converted to direct current power output, and corrects the direct current power after rectification using power factor correction circuit, to reduce input electricity
Flow；Power supply changeover device is electrically connected to rectifier, and power supply changeover device is exported comprising one first power output end and a standby power
End, standby power output end is electrically connected to electronic system, and power supply changeover device receives rectifier output and reduces after input current amount
Direct current power.Controller is electrically connected to power supply changeover device；Power supervisor is electrically connected to controller and electronic system.Switch element
It is electrically connected to the first power output end, power supervisor and electronic system, switch element is according to the control of power supervisor leading
The electric power that logical or cut-out is exported by the first power output end and is transferred to.
In the technical program other embodiment, power supply changeover device also includes a second source output end, is electrically connected to
Switch element, switch element is defeated by the first power output end and second source with or off according to the control of power supervisor
Go out the electric power that end exports and is transferred to electronic system.
In the technical program other embodiment, power supply device also includes one first disconnecting switch, is electrically connected to
Second source output end, standby power output end and controller, second source output end, the electric power of standby power output end output
Controller is transferred to by the first disconnecting switch.
In the technical program other embodiment, power supply device is also comprising a standby power converter and always
Stream-DC power converter, standby power converter is electrically connected to the standby power output end of the power supply changeover device.Direct current-straight
Stream power supply changeover device is electrically connected to the first power output end, DC-DC power converter comprising a second source output end and
One the 3rd power output end, second source output end and the 3rd power output end are electrically connected to switch element, switch element foundation
The control of power supervisor is exported with turning on or switching the first power output end, second source output end and the 3rd power output end
Electric power.
In the technical program other embodiment, power supply device also includes one first disconnecting switch, is electrically connected to
First power output end and controller, the electric power of the first power output end output is transferred to controller by the first disconnecting switch.
In the technical program other embodiment, power supply device also comprising one second disconnecting switch and one the 3rd every
Pass is left, the second disconnecting switch is electrically connected to power supervisor and controller, what the second disconnecting switch sent power supervisor
Protection signal is transferred to controller.3rd disconnecting switch is electrically connected to power supervisor and controller, and the 3rd disconnecting switch will be controlled
The control signal that device processed sends is transferred to power supervisor.
In the technical program other embodiment, power supply device also includes an EMI FILTER, electrical connection
In AC power supply and rectifier.
In the technical program other embodiment, wherein power supply changeover device is DC-DC power converter.
In the technical program other embodiment, power supply changeover device is LLC resonant mode power supply changeover devices, dual forward type
Power supply changeover device or single forward power switcher.
A kind of power supply device is provided in another embodiment of the present embodiment, power supply device is electrically connected to a friendship
Stream power supply unit and an electronic system, power supply device receives the alternating electromotive force of AC power supply output, and will hand over
Stream electric power is carried out being exported after electric energy conversion to electronic system, and power supply device includes a rectifier, a power supply changeover device, always
Stream-direct current transducer, a controller, a power supervisor and a switch element.Rectifier includes a power factor correction circuit,
Rectifier corrects the direct current after rectification alternating electromotive force is converted to into direct current power output using power factor correction circuit
Electric power, to reduce input current amount；Power supply changeover device is electrically connected to rectifier, and power supply changeover device is exported comprising one first power supply
End, the power supply changeover device receives the rectifier output and reduces the direct current power after input current amount.DC-to-dc converter is electrically connected
The first power output end is connected to, DC-to-dc output end is treated comprising a second source output end, one the 3rd power output end and one
Electromechanical source output terminal, standby output end is electrically connected to electronic system.Controller is electrically connected to power supply changeover device.Power supervisor electricity
It is connected to controller and DC-DC power converter.Switch element is electrically connected to the first power output end, second source output
End, the 3rd power output end, power supervisor and electronic system, switch element is according to the control of power supervisor turning on or cut
The disconnected electric power for being exported and being transferred to by the first power output end, second source output end and the 3rd power output end.
In the technical program other embodiment, power supply device also comprising one first disconnecting switch, one second every
Pass and one the 3rd disconnecting switch are left, the first disconnecting switch is electrically connected to the first power output end and controller, and the first power supply is defeated
The electric power for going out end output is transferred to controller by the first disconnecting switch.Second disconnecting switch is electrically connected to power supervisor and control
The protection signal that power supervisor sends is transferred to controller by device processed, the second disconnecting switch.3rd disconnecting switch is electrically connected to
The control signal that controller sends is transferred to power supervisor by power supervisor and controller, the 3rd disconnecting switch.
In the technical program other embodiment, power supply device also includes an EMI FILTER, electrical connection
In AC power supply and rectifier.
In the technical program other embodiment, wherein power supply changeover device is DC-DC power converter.
In the technical program other embodiment, power supply changeover device is LLC resonant mode power supply changeover devices, dual forward type
Power supply changeover device or single forward power switcher.
Description of the drawings
Fig. 1 is the circuit block diagram of existing power supply device；
Fig. 2 is the circuit block diagram of the power supply device of this disclosure first embodiment；
Fig. 3 is the circuit diagram of the power supply changeover device of this disclosure first embodiment；
Fig. 4 is the circuit diagram of the power supply changeover device of this disclosure second embodiment；
Fig. 5 is the circuit diagram of the power supply changeover device of the embodiment of this disclosure the 3rd；
Fig. 6 is a sequential chart of the power supply device running shown in correspondence Fig. 2；
Fig. 7 is another sequential chart of the power supply device running shown in correspondence Fig. 2；
Fig. 8 is the circuit block diagram of the power supply device of this disclosure second embodiment；
Fig. 9 is the circuit block diagram of the power supply device of the embodiment of this disclosure the 3rd.
Reference
1、2：Power supply device 10,20：EMI FILTER
11、22：Rectifier 12：Main power source converter
13：Accessory power converter 14：First controller
15：Second controller 16,28：Power supervisor
220：Power factor correction circuit 24：Power supply changeover device
240：Rectification circuit 242：Filter circuit
26：Controller 30：Switch element
32：First disconnecting switch 34：Second disconnecting switch
36：3rd disconnecting switch 38：DC-DC power converter
40：Standby power converter ACP：AC power supply
Cr：Resonant capacitor C1, C2：Filter condenser
DR、DR1、DR2：Passive switching device D1, D2：Commutation diode
L：Filter inductor Lr：Resonant inductor
Np：First side winding Ns：Secondary side winding
OC1：First optoisolator OC2：Second optoisolator
OC3：3rd optoisolator OC4：4th optoisolator
PG：Signal output part PS：Electronic system
PS-On：Signal input part Q1, Q2：Switching device
S、S1、S2：Active switching device T：Transformer
VA：First power output end VB：Second source output end
VC：3rd power output end Vsb：Standby power output end
Specific embodiment
Accompanying drawings are refer to, the above of this disclosure and extra objects, features and advantages will be by following all enforcements
The property explained below of mode and non-limiting describing in detail are more fully understood.
Coordinate with reference to Fig. 2, be the circuit block diagram of the power supply device of this disclosure first embodiment.Power supply is supplied
Device 2 is answered to be electrically connected to an AC power supply ACP and electronic system PS, power supply device 2 receives AC power and supplies
The alternating electromotive force for answering device ACP to export, and alternating electromotive force is carried out to be transferred to electronic system PS after electric energy conversion.
Power supply device 2 is controlled comprising an EMI FILTER 20, a rectifier 22, a power supply changeover device 24,
Device 26, a power supervisor 28 and a switch element 30.EMI FILTER 20 is electrically connected to AC power supply ACP,
EMI FILTER 20 receives the alternating electromotive force that AC power supply ACP is provided, and it is dry to filter the electromagnetism in alternating electromotive force
Disturb.
Rectifier 22 by the alternating electromotive force that EMI FILTER 20 is exported to be converted to direct current power output.Whole
Active PFC (Power Factor Correction) circuit 220 can be added in stream device 22, to reduce input current
Amount.
Power supply changeover device 24 is electrically connected to rectifier 22 and controller 26, and with standby power output end Vsb, one
One power output end VA and second source output end VB.Power supply changeover device 24 receives the direct current power of the output of rectifier 22, and
Receive controller 26 to control and to change standby power output end Vsb, the first power output end VA and second source output end VB defeated
The magnitude of voltage of the electric power for going out.
Power supervisor 28 is electrically connected to power supply changeover device 24, controller 26 and electronic system PS, and power supervisor 28 leads to
Cross a signal output part PG and transmit signal to electronic system PS, and by signal input part PS_On reception electronic systems PS
The signal for sending.
Switch element 30 is electrically connected to power supervisor 28, the first power output end VA, second source output end VB and electricity
Subsystem PS, switch element 30 is defeated by the first power supply with or off according to the switch controlling signal that power supervisor 28 is sent
Go out to hold VA and second source output end VB to export and be transferred to the electric power of electronic system PS.
Here to illustrate that：Power supply changeover device 24 can such as (but not limiting) as DC-DC converter (DC to DC
), and may be, for example, LLC resonant mode power supply changeover devices (as shown in Figure 3), dual forward power switcher (Dual converter
Forward Converter) (as shown in Figure 4) or single forward power switcher (Single Forward Converter)
(as shown in Figure 5).
Coordinate with reference to Fig. 3, be the circuit diagram of the power supply changeover device of this disclosure first embodiment.Shown in Fig. 3
Power supply changeover device 24 is LLC resonant converters, and power supply changeover device 24 includes two switching device Q1 and Q2, a resonant inductors
Lr, a resonant capacitor Cr, a transformer T, a rectification circuit 240 and a filter circuit 242.
Switching device Q1, Q2 are electrically connected in rectifier 22 and controller 26, to receive the straight of the output of rectifier 22
Stream electric power, and the signal that foundation controller 26 is provided is to switch on conducting state or cut-off state, and output ripple direct current signal.
In the present embodiment, switching device Q1, Q2 is mos field effect transistor (Metal-Oxide-
Semiconductor Field-Effect Transistor, MOSFET), the grid of switching device Q1, Q2 be electrically connected in
Controller 26, is connected to a diode D between the drain electrode of switching device Q1, Q2 and source electrode, diode D can also be switching
The parasitic diode of element Q1, Q2.
Resonant inductor Lr is electrically connected to switching device Q1, Q2.In present embodiment, resonant inductor Lr is connected to and cuts
Change between the source electrode of element Q1 and the drain electrode of switching device Q2, with the when reception of switching device Q1, Q2 alternate conduction and cut-off
Pulsating direct current signal.Resonant capacitor Cr is electrically connected to first side winding Np of resonant inductor Lr and voltage device T, resonant capacitance
Device Cr in addition to the DC component for intercepting pulsating direct current signal, and with the magnetization of resonant inductor Lr and first side winding Np
Inductance forms resonance circuit.In present embodiment, tapped transformer centered on transformer T.
Rectification circuit 240 includes two commutation diodes D1 and D2, and commutation diode D1 and D2 are electrically connected in transformation
Secondary side winding Ns of device T, to the direct current power by tool dither composition is converted to by the alternating electromotive force of transformer T.
Filter circuit 242 is electrically connected to rectification circuit 240, filter circuit 242 can such as (but not limiting) as CLC filter circuits, and wrap
Containing a filter inductor L and be connected to the filter condenser C1 and C2 at filter inductor L two ends, filter circuit 242 to
Filter the dither composition of the direct current power of commutation diode D1 and D2 output and export stable direct current.
Coordinate with reference to Fig. 4, be the circuit diagram of the power supply changeover device of this disclosure second embodiment.Electricity shown in Fig. 4
Source converter 24 is dual forward power switcher, power supply changeover device 24 comprising two actives switching device S1 and S2, two
Passive switching device DR1 and DR2, a rectification circuit 240, a filter circuit 242 and a transformer T, transformer T include one once
Side winding Np and secondary side winding Ns.
Active switching device S1 and S2 are electrically connected in rectifier 22 and controller 26, are exported to receive rectifier 22
Direct current power, and the signal provided according to controller 26 is switching on conducting state or cut-off state, and output ripple direct current
Signal.In the present embodiment, active switching device S1 and S2 is mos field effect transistor, is actively switched
The grid of element S1 and S2 is electrically connected and connects respectively between controller 26, the drain electrode of active switching device S1 and S2 and source electrode
A diode D is connected to, diode D can also be the parasitic diode of each active switching device S1, S2.
Passive switching device DR1 is connected across active switching device S1 and first side winding Np, passive switching device DR2 bridgings
In active switching device S2 and first side winding Np.In the present embodiment, passive switching device DR1 and DR2 is respectively two poles
Pipe.
Rectification circuit 240 constitutes and is electrically connected to secondary side winding Ns by diode D1 and D2, to will be by transformer T
Alternating electromotive force be converted to tool dither composition direct current power.Filter circuit 242 is electrically connected to rectification circuit 240, filtering
Circuit 242 can such as (but not limiting) as CLC filter circuits, and comprising a filter inductor L and be connected to filter inductance
The filter condenser C1 and C2 at device L two ends, filter circuit 242 is to filter the direct current power that commutation diode D1 and D2 are exported
Dither composition simultaneously exports stable direct current.
Coordinate with reference to Fig. 5, be the circuit diagram of the power supply changeover device of the embodiment of this disclosure the 3rd.Electricity shown in Fig. 5
Source converter 24 is single forward power switcher, and power supply changeover device 24 includes an active switching device S, a passive switching unit
Part DR, a capacitor C, a resistor R, a transformer T, a rectification circuit 240 and a filter circuit 242.
Active switching device S is electrically connected to rectifier 22 and controller 26, to the direct current for receiving the output of rectifier 22
Power, and the signal that foundation controller 26 is provided is to switch on conducting state or cut-off state, and output ripple direct current signal.At this
In embodiment, active switching device S is mos field effect transistor, and the grid of active switching device S is electric
It is connected to controller 26.Be connected with a diode D between the drain electrode of active switching device S and source electrode, diode D can also based on
The parasitic diode of dynamic switching device S.Passive switching device DR and capacitor C in series connection, and it is connected across transformer T once
Side winding Np, resistor R are connected in parallel with capacitor C.In present embodiment, passive switching device DR is diode.
Rectification circuit 240 constitutes and is electrically connected to secondary side winding Ns by diode D1 and D2, to will be by transformer T
Alternating electromotive force be converted to tool dither composition direct current power.Filter circuit 242 is electrically connected to rectification circuit 240, filtering
Circuit 242 can such as (but not limiting) as CLC filter circuits, and comprising a filter inductor L and be connected to filter inductance
The filter condenser C1 and C2 at device L two ends, filter circuit 242 is to filter the direct current power that commutation diode D1 and D2 are exported
Dither composition simultaneously exports stable direct current.
Referring again to Fig. 2, power supply device 2 also includes one first disconnecting switch 32, one second disconnecting switch 34 and
3rd disconnecting switch 36.First disconnecting switch 32, the second disconnecting switch 34 and the 3rd disconnecting switch 36 can such as (but not limiting)
For photo-coupler.
One end (signal transmitting terminal) of first disconnecting switch 32 is electrically connected to standby power output end Vsb and second source is defeated
Go out and hold VB, the other end (signal receiving end) of the first disconnecting switch 32 is electrically connected to controller 26, to detect by standby power
Output end Vsb and the electric power of second source output end VB output, and the signal isolation of the aforementioned output power of correspondence is transferred to
The controller 26.
One end (signal transmitting terminal) of second disconnecting switch 34 is electrically connected to power supervisor 28, the second disconnecting switch 34
The other end (signal receiving end) is electrically connected to controller 26.When electronic system PS or power supply device 2 are operated in operating voltage
Too high, operating current is too high or short-circuit condition under, the protection with regard to overvoltage, overcurrent or short circuit that power supervisor 28 sends
Signal is transferred to controller 26 by the second disconnecting switch 34, and controller 26 can order about power supply changeover device 24 and stop electric energy conversion.
One end (signal transmitting terminal) of 3rd disconnecting switch 36 is electrically connected to controller 26, the 3rd disconnecting switch 36 it is another
End (signal receiving end) is electrically connected to power supervisor 28.Power supervisor 28 is received by controller by the 3rd disconnecting switch 36
26 electric power after the conversion of the electric energy of power supply changeover device 24 are normal to send a control signal without mistaking, and logical via signal output part PG
Know that the power initiation of electronic system PS power supply device 2 is normal.
Coordinate with reference to Fig. 6, be a sequential chart of the power supply device running shown in correspondence Fig. 2.In first state, i.e.,
Time is t1 to t7, and in this section, AC power supply ACP starts (i.e. AC_On is high potential), and electronic system PS starts
(i.e. PS_On is electronegative potential).Switch element 30 is closed, and standby power output end Vsb of power supply device 2, the first power supply are defeated
Go out to hold VA and the electric power of second source output end VB output all to transmit electronic system PS.
In the second state, i.e. the time is t7 to t9, and AC power supply ACP starts (i.e. AC_On is high potential), electricity
Subsystem PS not actuated (i.e. PS_On is high potential).Switch element 30 is opened, the standby power output end of power supply device 2
The electric power of Vsb outputs can be transferred to electronic system PS, and the first power output end VA and the electricity of second source output end VB output
Power cannot be transferred to electronic system PS because switch element 30 is unlocked.
In the third state, i.e. the time is t9 to t11, and AC power supply ACP starts (i.e. AC_On is high potential),
Electronic system PS is switched to start (i.e. PS_On switchs to electronegative potential by high potential) by not actuated.Switch element 30 is closed, power supply supply
Standby power output end Vsb of device 2, the first power output end VA and second source output end VB are while output power is to electronics
System PS.
In four states, i.e. the time, AC power supply ACP is not actuated, and (i.e. AC_On was low electricity after t11
Position), electronic system ES starts (PS_On is electronegative potential).When the voltage of the output of power supply changeover device 24 is less than first predetermined value (
Time is t11 to t12), the signal output part PG sending signals of power supply device 2 give electronic system PS, to notify Department of Electronics
The electric power of the output of system PS power supply devices 2 is less than first predetermined value.Voltage after power supply changeover device 24 is exported is less than second
During predetermined value (time is t12 to t13), switch element 30 is opened, then the first power output end VA and second source output end
The electric power of VB outputs cannot be transferred to electronic system PS.When the voltage of the output of power supply changeover device 24 is less than third predetermined value, stop
Only standby power output end Vsb output power is to electronic system PS.
Coordinate with reference to Fig. 7, be another sequential chart of the power supply device running shown in correspondence Fig. 2.In first state,
That is the time is t1 to t2, and AC power supply ACP starts (i.e. AC_On be high potential), and electronic system PS starts that (PS_On is
Electronegative potential).When the electric power of the output of power supply changeover device 24 is more than a predetermined value, standby power output end Vsb output power is to electricity
Subsystem PS.
In the second state, i.e. the time is t2 to t3, and AC power supply ACP starts (i.e. AC_On is high potential), electricity
Subsystem PS not actuated (i.e. PS_On is high potential).Switch element 30 is opened, the standby power output end of power supply device 2
Vsb output powers are to electronic system, and the first power output end VA and the power train of second source output end VB output are because of switch
Element 30 is unlocked and cannot be transferred to electronic system PS, implies that power supply device 2 enters holding state.
The operation of the time t3 to t5 shown in Fig. 7 is same as the time t9 to t11 shown in Fig. 6, and the time t5 shown in Fig. 7
To the time t11 to t14 that the operation of t8 is same as shown in Fig. 6, at this, then it will not go into details.
It is comprehensive the above, the power supply device 2 of this disclosure is reduced compared with the power supply device 1 of prior art
Accessory power converter, consequently, it is possible to not only can effectively reduce the volume of power supply device 2, it is possible to reduce the energy
Consume, the characteristics of can be simultaneously reached low-power consumption standby.
Coordinate with reference to Fig. 8, be the circuit block diagram of the power supply device of this disclosure second embodiment.Shown in Fig. 8
Power supply device 2A it is similar with the power supply device 2 of first embodiment, and identical element marking with identical symbol
Number.It should be noted that both difference is：Power supply device 2A shown in Fig. 8 also includes a DC-to-dc converter
38, and power supply changeover device 24 only includes one first power output end VA.
DC-to-dc converter 38 is electrically connected to the first power output end VA and power supervisor of power supply changeover device 24
28, DC-to-dc converter 38 has the output of second source output end VB, one the 3rd power output end VC and a standby power
End Vsb.DC-to-dc converter 38 receives the direct current power that power supply changeover device 24 is exported by the first power output end VA, and will
Direct current power is carried out after electric energy conversion by second source output end VB, the 3rd power output end VC and standby power output end Vsb
Output.Switch element 30 is electrically connected to the first power output end VA, second source output end VB and the 3rd power output end VC, opens
Close element 30 receive the switch controlling signal sent of power supervisor 28 with or off by the first power output end VA, second
Power output end VB and the 3rd power output end VC export and are transferred to the power supply of electronic system PS.Standby power output end Vsb
It is electrically connected to electronic system PS.
Secondly, the first isolation element 32 is electrically connected to the first power output end VA, by the first power output end VA outputs
Electric power be transferred to controller 26.The function and related description of each element of power supply device 2A, actually implements with first
The power supply device 2 of mode is identical, will not be described here.Power supply device 2A at least can reach and power supply device 2
Identical function.
Coordinate with reference to Fig. 9, be the circuit block diagram of the power supply device of this disclosure 3rd embodiment.Shown in Fig. 9
Power supply device 2B it is similar with the power supply device 2 of first embodiment, and identical element marking with identical symbol
Number.It should be noted that both difference is：Power supply device 2B shown in Fig. 9 also includes a DC-to-dc converter
38 and a standby power converter 40, and power supply changeover device 24 is comprising one first power output end VA and a standby power output end
Vsb。
DC-to-dc converter 38 is electrically connected to the first power output end VA and power supervisor of power supply changeover device 24
28, DC-to-dc converter 38 has second source output end VB and one the 3rd power output end VC.DC-to-dc is changed
Device 38 receives the direct current power that power supply changeover device 24 is exported by the first power output end VA, and direct current power is carried out into electric energy conversion
Exported by second source output end VB and the 3rd power output end VC afterwards.Switch element 30 is electrically connected to the first power output end
VA, second source output end VB and the 3rd power output end VC, switch element 30 receives the switch control that power supervisor 28 is sent
Signal processed is exported simultaneously with or off by the first power output end VA, second source output end VB and the 3rd power output end VC
It is transferred to the power supply of electronic system PS.
Standby power converter 40 is electrically connected to power supply changeover device 24, power supervisor 28 and electronic system PS.Treat electromechanics
Source converter 40 receives the direct current power of the standby power output end Vsb output of power supply changeover device 24, and direct current power is carried out
Export to electronic system PS after electric energy conversion.Secondly, the first isolation element 32 is electrically connected to the first power output end VA, by the
The electric power of one power output end VA outputs is transferred to controller 26.The function of each element of power supply device 2B with mutually speak on somebody's behalf
It is bright, it is actually identical with the power supply device 2 of first embodiment, will not be described here.Power supply device 2B at least may be used
Reach and the identical function of power supply device 2.
But the better embodiment of this disclosure is the foregoing is only, when the scope that can not limit present invention enforcement,
I.e. all impartial changes made according to claims of the present invention and modification etc., the patent covering scope that all should still belong to the present invention is intended to
The category of protection.
Claims (14)
1. a kind of power supply device, it is characterised in that be electrically connected to an AC power supply and an electronic system, the power supply
Feeding mechanism receives the alternating electromotive force of the AC power supply output, and alternating electromotive force is carried out to export to this after electric energy conversion
Electronic system, the power supply device is included：
One rectifier, comprising a power factor correction circuit, the rectifier is exported alternating electromotive force is converted to into direct current power,
And the direct current power after rectification is persistently corrected using power factor correction circuit, to reduce input current amount；
One power supply changeover device, is electrically connected to the rectifier, and the power supply changeover device treats electromechanics comprising one first power output end and one
Source output terminal, standby power output end is electrically connected to electronic system, and the power supply changeover device receives the rectifier output and reduces input
Direct current power after the magnitude of current；
One controller, is electrically connected to the power supply changeover device, and the power supply changeover device receives controller control and to change this first electric
Source output terminal and the electric power of the standby power output end output；
One power supervisor, is electrically connected to the controller and the electronic system；And
One switch element, is electrically connected to first power output end, the power supervisor and the electronic system, and the controller is at this
The normal nothing of electric power after the conversion of power supply changeover device electric energy is mistaken and sends a control signal to the power supervisor, to notify the electronics
The power initiation of the system power supply device is normal, afterwards the switch element according to the control of the power supervisor turning on or
Cut off by the electric power of the first power output end output.
2. power supply device according to claim 1, it is characterised in that power supply changeover device is also defeated comprising a second source
Go out end, be electrically connected to the switch element, the switch element according to the control of the power supervisor with or off by this first
Power output end and the second source output end export and are transferred to the electric power of electronic system.
3. power supply device according to claim 2, it is characterised in that also comprising one first disconnecting switch, electrical connection
In the second source output end, the standby power output end and the controller, the second source output end, the standby power output
The electric power of end output is transferred to the controller by first disconnecting switch.
4. power supply device according to claim 1, it is characterised in that also include：
One standby power converter, is electrically connected to the standby power output end of the power supply changeover device；And
One DC-DC power converter, is electrically connected to first power output end, and the DC-DC power converter is included
One second source output end and one the 3rd power output end, the second source output end and the 3rd power output end are electrically connected to
The switch element, the switch element according to the control of the power supervisor with turn on or switch first power output end, this
Two power output ends and the electric power of the 3rd power output end output.
5. power supply device according to claim 4, it is characterised in that also comprising one first disconnecting switch, electrical connection
In first power output end and the controller, the electric power of the first power output end output is by the first disconnecting switch transmission
To the controller.
6. the power supply device according to claim 3 or 5, it is characterised in that also include：
One second disconnecting switch, is electrically connected to the power supervisor and the controller, and second disconnecting switch is by the power management
The protection signal that device sends is transferred to the controller；And
One the 3rd disconnecting switch, is electrically connected to the power supervisor and the controller, and the 3rd disconnecting switch sends out the controller
The control signal for going out is transferred to the power supervisor.
7. power supply device according to claim 6, it is characterised in that also comprising an EMI FILTER, be electrically connected
It is connected to the AC power supply and the rectifier.
8. power supply device according to claim 7, it is characterised in that the power supply changeover device is DC-DC power
Converter.
9. power supply device according to claim 8, it is characterised in that the power supply changeover device is LLC resonant mode power supplys
Converter, dual forward power switcher or single forward power switcher.
10. a kind of power supply device, it is characterised in that be electrically connected to an AC power supply and an electronic system, the electricity
Source supply device receives the alternating electromotive force of AC power supply output, and by alternating electromotive force carry out being exported after electric energy conversion to
The electronic system, the power supply device is included：
One rectifier, comprising a power factor correction circuit, the rectifier is exported alternating electromotive force is converted to into direct current power,
And the direct current power after rectification is corrected using power factor correction circuit, to reduce input current amount；
One power supply changeover device, is electrically connected to the rectifier, and the power supply changeover device includes one first power output end, the Power convert
Device receives the rectifier output and reduces the direct current power after input current amount；
One DC-to-dc converter, is electrically connected to first power output end, and the DC-to-dc output end is electric comprising one second
Source output terminal, one the 3rd power output end and a standby power output end, the standby power output end is electrically connected to electronic system；
One controller, is electrically connected to the power supply changeover device；
One power supervisor, is electrically connected to the controller, the DC-DC power converter and the electronic system；And
One switch element, be electrically connected to first power output end, the second source output end, the 3rd power output end, should
Power supervisor and the electronic system, the switch element is first electric by this with or off according to the control of the power supervisor
Source output terminal, the second source output end and the 3rd power output end export and are transferred to the electric power of electronic system.
11. power supply devices according to claim 10, it is characterised in that also include：
One first disconnecting switch, is electrically connected to first power output end and the controller, the first power output end output
Electric power is transferred to the controller by first disconnecting switch；
One second disconnecting switch, is electrically connected to the power supervisor and the controller, and second disconnecting switch is by the power management
The protection signal that device sends is transferred to the controller；And
One the 3rd disconnecting switch, is electrically connected to the power supervisor and the controller, and the 3rd disconnecting switch sends out the controller
The control signal for going out is transferred to the power supervisor.
12. power supply devices according to claim 11, it is characterised in that also comprising an EMI FILTER, electricity
It is connected to the AC power supply and the rectifier.
13. power supply devices according to claim 12, it is characterised in that the power supply changeover device is DC-to-dc electricity
Source converter.
14. power supply devices according to claim 13, it is characterised in that the power supply changeover device is LLC resonant modes electricity
Source converter, dual forward power switcher or single forward power switcher.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102118703A TWI481156B (en) | 2013-05-27 | 2013-05-27 | Power supplying device |
| TW102118703 | 2013-05-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104184341A CN104184341A (en) | 2014-12-03 |
| CN104184341B true CN104184341B (en) | 2017-04-12 |
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| CN201310462440.4A Active CN104184341B (en) | 2013-05-27 | 2013-09-30 | Power supply device |
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|---|---|
| CN (1) | CN104184341B (en) |
| TW (1) | TWI481156B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105093971B (en) * | 2014-05-09 | 2018-05-25 | 群光电能科技股份有限公司 | The control method of power system, Linear Control module and switch element |
| CN106451404B (en) | 2015-08-04 | 2019-02-19 | 台达电子工业股份有限公司 | Power-supply system and its power configuration method |
| CN105703638A (en) * | 2016-02-17 | 2016-06-22 | 黄宇嵩 | Direct current power source distributor for household light current information box |
| CN105553294A (en) * | 2016-02-18 | 2016-05-04 | 吴建堂 | Weak current equipment power supply control device of information box |
| TWI611649B (en) | 2016-07-22 | 2018-01-11 | 群光電能科技股份有限公司 | Charging device and charging system |
| TWI613877B (en) * | 2016-08-25 | 2018-02-01 | 和碩聯合科技股份有限公司 | Redundant power supply control circuit |
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| CN1925298A (en) * | 2005-08-30 | 2007-03-07 | 厦门华侨电子企业有限公司 | Middle and large power switch electrical source for no-standby electrical source in electrical source system |
| CN101419434A (en) * | 2007-10-26 | 2009-04-29 | 王海 | Capacitive switch power supply with low power consumption standby function |
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| TWM363021U (en) * | 2009-03-13 | 2009-08-11 | Top Victory Invest Ltd | Power detector and power supply |
| TWM361185U (en) * | 2009-03-17 | 2009-07-11 | Top Victory Invest Ltd | Distribute power supply |
| TWI413084B (en) * | 2009-10-14 | 2013-10-21 | Innolux Corp | Liquid crystal display power supplying circuit |
| US20120020131A1 (en) * | 2010-07-21 | 2012-01-26 | Lien Chang Electronic Enterprise Co., Ltd. | Power apparatus and method of supplying power |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1925298A (en) * | 2005-08-30 | 2007-03-07 | 厦门华侨电子企业有限公司 | Middle and large power switch electrical source for no-standby electrical source in electrical source system |
| CN101419434A (en) * | 2007-10-26 | 2009-04-29 | 王海 | Capacitive switch power supply with low power consumption standby function |
| CN202872675U (en) * | 2012-10-31 | 2013-04-10 | 群光电能科技股份有限公司 | Power supply device having low standby power consumption |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI481156B (en) | 2015-04-11 |
| TW201445854A (en) | 2014-12-01 |
| CN104184341A (en) | 2014-12-03 |
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