CN202353465U - Current converging type power supply device - Google Patents
Current converging type power supply device Download PDFInfo
- Publication number
- CN202353465U CN202353465U CN2011204759323U CN201120475932U CN202353465U CN 202353465 U CN202353465 U CN 202353465U CN 2011204759323 U CN2011204759323 U CN 2011204759323U CN 201120475932 U CN201120475932 U CN 201120475932U CN 202353465 U CN202353465 U CN 202353465U
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- Prior art keywords
- supply
- load
- filter circuit
- circuit
- voltage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
The utility model provides a current converging type power supply device which is used for supplying a rectified pulse direct current power supply to a load, and comprises a supply circuit and a filter circuit; the two circuits receive the rectified pulse direct current power supply; when the filter circuit is charged, the supply circuit directly supplies the pulse direct current power supply to the load, the filter circuit provides filtered direct current to the load when the filter circuit is charged and the voltage is higher than the pulse voltage value of the pulse direct current power supply, so that the effect of improving a power factor is achieved.
Description
Technical field
The utility model relates to a kind of electric supply installation, particularly a kind of electric supply installation of manifold-type.
Background technology
Most of electronic installation (like television set, sound equipment, computer etc.) employed power supply of its intraware is direct current, so must there be power supply unit (or rectifier) to convert the AC system electricity to various direct voltage so that electrical equipment performance function.
Fig. 1 is the functional block diagram of power supply circuit.The alternating voltage of flowing through behind the transformer 101 can produce the direct voltage of stable tool pulsatile change through the rectified action of rectifier 103, then through the filtering of filter 105 and the direct current position standard of the pulsatile change that is reduced and be supplied to load 107.Between filter 105 and load, also can have adjuster (figure does not show) and obtain fixing direct voltage to regulate.
In recent years, the power supply supply focuses on the improvement of conversion efficiency, and the performance of power factor (PF) is just concerning the energy transmission efficiency of whole system.Traditional filter normally utilizes capacitor to implement, and the big more filter effect of capacitance is just good more, but side by side, bigger its volume of capacitance is also just big more.A kind of settling mode is to utilize the adding of resistance to promote filter effect, yet, under the series connection of the filter resistance of resistance capacitance filter circuit and load resistance, cause VD to produce decay on the contrary, therefore power factor (PF) also reduces.
Summary of the invention
The main purpose of the utility model is at the manifold-type electric supply installation that a kind of tool high power factor and filter effect are provided.
For reaching above-mentioned purpose and other purpose, the utility model manifold-type electric supply installation, it is used for the Voltage pulsating direct-current supply after the full-wave rectification is provided to load; Comprise: a supply circuit; It has two-end-point, and first end is connected to the positive terminal of this Voltage pulsating direct-current supply, and second end is connected to the input of this load; Wherein, this supply circuit is in order to export this Voltage pulsating direct-current supply to this load; An and filter circuit; It has three end points, and first end connects the positive terminal of this Voltage pulsating direct-current supply, and second end is connected to the input of this load and is connected to second end of this supply circuit; The 3rd end is connected to the output of this load and is connected to the negative pole end of this Voltage pulsating direct-current supply; Wherein, this filter circuit together is collected to this load in order to the filtering output of the ripple composition that reduces this Voltage pulsating direct-current supply to be provided with the output with this supply circuit.
In one embodiment, this supply circuit comprises one first diode, and the forward bias voltage drop end of this first diode is connected to first end of this supply circuit, and the reverse bias end of this first diode is connected to second end of this supply circuit.
In one embodiment, this filter circuit comprises: an inductor, and it has two-end-point, and its first end is connected to first end of this filter circuit; One capacitor, it has two-end-point, and its first end is connected to second end of this inductor, and second end of this capacitor then is connected to the 3rd end of this filter circuit; And one second diode, its forward bias voltage drop end is connected to second end of this inductor and is connected to first end of this capacitor, and its reverse bias end is connected to second end of this filter circuit.
Whereby; Utilize the effect of confluxing of filter circuit and supply circuit;, filter circuit directly supplies Voltage pulsating direct-current supply to load when charging by supply circuit; And accomplish and voltage provides filtering direct current (filtered output) to load by filter circuit when being higher than the pulsating voltage value of Voltage pulsating direct-current supply this moment, and then reach the effect that power factor (PF) improves in filter circuit charging.
Description of drawings
Fig. 1 is the functional block diagram of Voltage pulsating direct-current supply supply circuit.
Fig. 2 is the utility model functional block diagram of manifold-type electric supply installation in one embodiment.
Fig. 3 is the utility model circuit diagram of manifold-type electric supply installation in one embodiment.
[primary clustering symbol description]
101 transformers
103 rectifiers
105 filters
107 loads
200 manifold-type electric supply installations
201 supply circuits
2,011 first diodes
203 filter circuits
2031 inductors
2,033 second diodes
2035 capacitors
205 loads
207 Voltage pulsating direct-current supplies
First end of a supply circuit
Second end of b supply circuit
First end of c filter circuit
Second end of d filter circuit
The 3rd end of e filter circuit
The input of f load
The output of g load
Embodiment
Be fully to understand purpose, characteristic and the effect of the utility model, existing by following concrete embodiment, and cooperate appended graphicly, the utility model is done one specifies as follows:
At first see also Fig. 2, be the utility model functional block diagram of manifold-type electric supply installation in one embodiment.AC power (for example: use bridge rectifier or other equivalent rectifier) after full-wave rectification becomes a Voltage pulsating direct-current supply 207; The utility model is handled this Voltage pulsating direct-current supply 207, and the Voltage pulsating direct-current supply after will handling provides the load 205 to the rear end.205 of the utility model manifold-type electric supply installation 200 and this loads also can add adjuster (figure does not show) and obtain fixing direct voltage to regulate.
Manifold-type electric supply installation 200 comprises supply circuit 201 and filter circuit 203.Supply circuit 201 and filter circuit 203 all receive the Voltage pulsating direct-current supply 207 after the rectification, and this supply circuit 201 is in order to this Voltage pulsating direct-current supply 207 of direct output.If these manifold-type electric supply installation 200 backs directly connect this load 205, the output of this manifold-type electric supply installation 200 is directly to provide to this load 205; If manifold-type electric supply installation 200 and 205 of this loads have other device, the output of this manifold-type electric supply installation 200 is to provide indirectly to this load 205.Filter circuit 203 also receives the Voltage pulsating direct-current supply after the rectification, in order to a filtering direct current (filtered output) of the ripple composition that reduces this Voltage pulsating direct-current supply 207 to be provided, together to conflux to this load 205 with the output of this supply circuit 201.This filter circuit 203 has three end points, in order to the filtering output of the ripple composition that reduces this Voltage pulsating direct-current supply 207 to be provided, together to conflux to this load 205 with the output of this supply circuit 201.
Among Fig. 2, supply circuit 201 has two-end-point, and the first end a is connected to the positive terminal of this Voltage pulsating direct-current supply 207, and the second end b is connected to the input of this load 205.In three end points of filter circuit 203; The first end c connects the positive terminal of this Voltage pulsating direct-current supply 207; The second end d is connected to the input of this load 205 and is connected to the second end b of this supply circuit 204, and the 3rd end e is connected to the output g of this load 205 and is connected to the negative pole end of this Voltage pulsating direct-current supply 207.
The utility model is existing to provide confluxing of circuit that power factor (PF) is provided by two kinds of power supplys.Because the voltage-phase of filter circuit 203 supply Voltage pulsating direct-current supplies 207 has delay, by supply circuit 201 Voltage pulsating direct-current supply 207 to load 205 is provided in during postponing; Accomplish and accumulation reaches when being higher than supply circuit 201 available voltages (when being higher than the pulsating voltage value of Voltage pulsating direct-current supply this moment) in filter circuit 203 charging, promptly can be transformed into automatically filtering direct current to load 205 is provided by filter circuit 203.Whereby, the characteristic of utilization filter circuit 203 and supply circuit 201 reaches preferable power supplying efficiency.
Then see also Fig. 3, be the utility model circuit diagram of manifold-type electric supply installation in one embodiment.Please consult Fig. 2 simultaneously; In further execution mode; This supply circuit 201 can comprise one first diode 2011; The forward bias voltage drop end of this first diode 2011 is connected to the first end a of this supply circuit 201, and the reverse bias end of this first diode is connected to the second end b of this supply circuit 201.
203 of this filter circuits can comprise: inductor 2031, capacitor 2035, and second diode 2033.First end of the two-end-point of inductor 2031 is connected to the first end c of this filter circuit 203; First end of the two-end-point of capacitor 2035 is connected to second end of this inductor 2031, and second end of this capacitor 2035 then is the 3rd end d that is connected to this filter circuit 203; In second diode 2033, its forward bias voltage drop end is connected to second end of this inductor 2031 and is connected to first end of this capacitor 2035, and its reverse bias end then is the second end d that is connected to this filter circuit 203.At this; This inductor 2031 is used for controlling the voltage-phase point of the output characteristic of this manifold-type electric supply installation 200; When being lower than this voltage-phase point, the output of manifold-type electric supply installation 200 is provided by this filter circuit 203, otherwise is then provided by this supply circuit 201; Therefore this inductor 2031 is as threshold inductance usefulness, with the critical point of control output switching.
Among the embodiment of the utility model, combine advantage and the stable dc power supply of filter circuit 203 of the high power factor of direct output ripple DC power supply 207 simultaneously, utilize the advantage of high power factor to remedy the power loss that filter circuit 203 causes.Further, by LC filter circuit that can not reduce too many output voltage and supply circuit that Voltage pulsating direct-current supply 207 can directly be provided, also can reach 90% power factor (PF) nearly.
The utility model discloses with preferred embodiment hereinbefore, so has the knack of this operator and it should be understood that this embodiment only is used to describe the utility model, and should not be read as the scope that limits the utility model.It should be noted that equivalent with this embodiment such as variation and displacement all should be made as in the category that is covered by the utility model.Therefore, the protection range of the utility model when with claim the person of being defined be as the criterion.
Claims (3)
1. a manifold-type electric supply installation is used for the Voltage pulsating direct-current supply after the full-wave rectification is provided to load, it is characterized in that, comprising:
One supply circuit, it has two-end-point, and first end is connected to the positive terminal of this Voltage pulsating direct-current supply, and second end is connected to the input of this load, and wherein, this supply circuit is in order to export this Voltage pulsating direct-current supply to this load; And
One filter circuit; It has three end points, and first end connects the positive terminal of this Voltage pulsating direct-current supply, and second end is connected to the input of this load and is connected to second end of this supply circuit; The 3rd end is connected to the output of this load and is connected to the negative pole end of this Voltage pulsating direct-current supply; Wherein, this filter circuit together is collected to this load in order to the filtering output of the ripple composition that reduces this Voltage pulsating direct-current supply to be provided with the output with this supply circuit.
2. manifold-type electric supply installation as claimed in claim 1; It is characterized in that; This supply circuit comprises one first diode, and the forward bias voltage drop end of this first diode is connected to first end of this supply circuit, and the reverse bias end of this first diode is connected to second end of this supply circuit.
3. manifold-type electric supply installation as claimed in claim 2 is characterized in that, this filter circuit comprises:
One inductor, it has two-end-point, and its first end is connected to first end of this filter circuit;
One capacitor, it has two-end-point, and its first end is connected to second end of this inductor, and second end of this capacitor then is connected to the 3rd end of this filter circuit; And
One second diode, its forward bias voltage drop end are connected to second end of this inductor and are connected to first end of this capacitor, and its reverse bias end is connected to second end of this filter circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204759323U CN202353465U (en) | 2011-11-23 | 2011-11-23 | Current converging type power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204759323U CN202353465U (en) | 2011-11-23 | 2011-11-23 | Current converging type power supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202353465U true CN202353465U (en) | 2012-07-25 |
Family
ID=46542427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204759323U Expired - Fee Related CN202353465U (en) | 2011-11-23 | 2011-11-23 | Current converging type power supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202353465U (en) |
-
2011
- 2011-11-23 CN CN2011204759323U patent/CN202353465U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20121123 |