CN209675936U - DC power supply and power supply unit - Google Patents
DC power supply and power supply unit Download PDFInfo
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- CN209675936U CN209675936U CN201821965259.XU CN201821965259U CN209675936U CN 209675936 U CN209675936 U CN 209675936U CN 201821965259 U CN201821965259 U CN 201821965259U CN 209675936 U CN209675936 U CN 209675936U
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- frequency filter
- filter circuit
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- power supply
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Abstract
The utility model relates to a kind of DC power supply and power supply units.Wherein DC power supply includes main power circuit, for providing DC current；And multiple-channel output branch；Multiple-channel output branch independent parallel is set to the output end of the main power circuit；It is also used to connect at least one power receiving equipment per output branch all the way；Low-frequency filter circuit and high-frequency filter circuit are in series with per exporting in branch all the way；Parameter per the low-frequency filter circuit and the high-frequency filter circuit that are exported in branch all the way is adjustable.Above-mentioned DC power supply is being provided with low-frequency filter circuit and high-frequency filter circuit per output branch all the way, and the parameter in low-frequency filter circuit and high-frequency filter circuit is adjustable, so as to be adjusted according to demand to respective parameter, so that it is guaranteed that the clean DC current of final output is to power receiving equipment, to meet the power demand of power receiving equipment.
Description
Technical field
The utility model relates to power technique fields, more particularly to a kind of DC power supply and power supply unit.
Background technique
DC power supply to power receiving equipment for being powered, so that it is guaranteed that the normal work of power receiving equipment.Traditional direct current
The DC current that power supply provides has more interference, is unable to satisfy the use demand of power receiving equipment.
Utility model content
Based on this, it is necessary to there is more interference for the DC current that traditional DC power supply provides, be unable to satisfy
The problem of use demand of power receiving equipment, provides a kind of DC power supply and power supply unit.
A kind of DC power supply, comprising:
Main power circuit, for providing DC current；And
Multiple-channel output branch；Multiple-channel output branch independent parallel is set to the output end of the main power circuit；Per all the way
Output branch is also used to connect at least one power receiving equipment；Low-frequency filter circuit and height are in series with per exporting in branch all the way
Frequency filter circuit；Parameter per the low-frequency filter circuit and the high-frequency filter circuit that are exported in branch all the way is adjustable.
Above-mentioned DC power supply is being provided with low-frequency filter circuit and high-frequency filter circuit, and low frequency per output branch all the way
Parameter in filter circuit and high-frequency filter circuit is adjustable, so as to be adjusted according to demand to respective parameter, from
And ensure the clean DC current of final output to power receiving equipment, to meet the power demand of power receiving equipment.
The low-frequency filter circuit includes magnetic device, first capacitor and the second capacitor in one of the embodiments,；Institute
It states magnetic device and is series at corresponding output branch road；One end of the first capacitor is connect with one end of the magnetic device,
The other end of the first capacitor is grounded；One end of second capacitor is connect with the other end of the magnetic device, and described
The other end of two capacitors is grounded；The parameter of at least one in the magnetic device, the first capacitor and second capacitor can
It adjusts.
The magnetic device includes at least one of inductance, magnetic bead in one of the embodiments,.
In one of the embodiments, describedly for mainboard.
The high-frequency filter circuit includes the first inductance and third capacitor in one of the embodiments,；First electricity
Sense and the third capacitor connect to form filter branch；One end of the filter branch is connect with the low-frequency filter circuit；Institute
State the other end ground connection of filter branch；The Parameter adjustable of at least one in first inductance and the third capacitor.
The high-frequency filter circuit further includes the second inductance and the 4th capacitor in one of the embodiments,；Described second
Inductance is series at the output branch；One end of 4th capacitor and second inductance connection；4th capacitor it is another
One end ground connection；The Parameter adjustable of at least one of second inductance and the 4th capacitor.
It in one of the embodiments, further include detection circuit；The detection circuit is for the direct current in each output branch
Clutter frequency in electric current, to be adjusted to the parameter in the low-frequency filter circuit and the high-frequency filter circuit.
It in one of the embodiments, further include display circuit；The display circuit is for showing the low frequency filtering electricity
Road and the current parameter of the high-frequency filter circuit.
A kind of power supply unit, including the DC power supply as described in aforementioned any embodiment.
Detailed description of the invention
Fig. 1 is the structural block diagram of the DC power supply in an embodiment；
Fig. 2 is the circuit diagram of the output branch in an embodiment；
Fig. 3 is the filter effect figure of one of output branch in the DC power supply in an embodiment.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
In the description of the present invention, it should be understood that term " center ", " transverse direction ", "upper", "lower" " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom", "inner" and "outside" is based on shown in attached drawing
Orientation or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion is signified
Device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as practical new to this
The limitation of type.In addition, it should be noted that, it can be directly connected to when element is referred to as " being formed on another element "
On another element or it may be simultaneously present centering elements.When an element is considered as " connection " another element, it can be with
It is directly connected to another element or exists simultaneously centering elements.On the contrary, when element is referred to as " directly existing " another element "upper"
When, intermediary element is not present.
Fig. 1 is the structural block diagram of the DC power supply in an embodiment.The DC power supply is used to provide direct current to power receiving equipment
Electric current, to meet the power demand of power receiving equipment.The DC current that DC power supply is exported can be according to the DC power supply
The demand of application scenarios namely its power receiving equipment is set.Referring to Fig. 1, the DC power supply include main power circuit 110 and
Output branch 120 at least all the way.
Main power circuit 110 is for providing DC current.Main power circuit 110 may include DC transfer circuit or friendship
Direct current varying circuit is flowed, so that the electric current that self-powered or external power supply inputs is converted to the direct current with a target value
Electric current.The DC current size that main power circuit 110 exports can be according to the need for the equipment namely power receiving equipment that its needs is powered
It asks and is configured.
Exporting branch 120 can be for all the way, or multichannel is set side by side.When with multiple-channel output branch 120, respectively
Export the mutually indepedent supplying power for outside of branch 120.Per output branch 120 all the way for being connect at least one power receiving equipment, with to
The power receiving equipment of connection is powered.In the present embodiment, low-frequency filter circuit 122 and height are provided with per output branch 120 all the way
Frequency filter circuit 124.Low-frequency filter circuit 122 and high-frequency filter circuit 124 can be set gradually along DC current direction, or
High-frequency filter circuit 124 and low-frequency filter circuit 122 are set gradually along DC current direction namely 122 He of low-frequency filter circuit
Position of the high-frequency filter circuit 124 in output branch 120 can exchange.
In the present embodiment, the parameter of low-frequency filter circuit 122 and high-frequency filter circuit 124 is adjustable.Specifically,
It can realize by adjusting the parameter of the component of at least one of low-frequency filter circuit 122 to low-frequency filter circuit 122
Parameter adjustment, and the parameter by adjusting the component of at least one of high-frequency filter circuit 124 is adjusted with reality
Now to the adjustment of the parameter of high-frequency filter circuit 124.In the present case, the low frequency in low-frequency filter circuit 122 is relative to high frequency
For high frequency in filter circuit 124.
Above-mentioned DC power supply is being provided with low-frequency filter circuit 122 and high-frequency filter circuit per output branch 120 all the way
124, and the parameter in low-frequency filter circuit 122 and high-frequency filter circuit 124 is adjustable, so as to according to demand to respective
Parameter is adjusted, so that it is guaranteed that the clean DC current of final output is to power receiving equipment, to meet the electricity consumption need of power receiving equipment
It asks.For example, the low-frequency filter circuit 122 and high-frequency filter circuit 124 in each output branch 120 can be according to the output branches
The frequency of clutter present in 120 is configured, thus low-frequency filter circuit 122 and high-frequency filter circuit by adjusting after
124 pairs of clutters are removed well, it is ensured that the final output DC current clean to power receiving equipment.By to low frequency filtering
The parameter of circuit 122 and high-frequency filter circuit 124 is configured, and can carry out depth filtering to any frequency point.
In one embodiment, above-mentioned DC power supply further includes detection circuit (not shown).Detection circuit is used for each defeated
Clutter frequency in DC current in out branch is detected and is exported.Detection circuit can be multiple, each detection circuit
For detecting the clutter frequency exported in branch all the way.For example, detection circuit can be the equipment such as frequency spectrograph or oscillograph.Root
According to the testing result of detection circuit, the parameter of low-frequency filter circuit 122 and high-frequency filter circuit 124 can be adjusted, from
And ensure that the low-frequency filter circuit 122 after the clutter in DC current can be adjusted and high-frequency filter circuit 124 are gone
It removes, so that final output is clean DC current to the DC current of power receiving equipment.It in one embodiment, can also include adjusting
Economize on electricity road (not shown).Circuit is adjusted to connect with detection circuit and each output branch 120 respectively.It adjusts circuit and is used for basis
The testing result of detection circuit is in the low-frequency filter circuit 122 and high-frequency filter circuit 124 in corresponding output branch 120
Parameter be adjusted so that the clutter that detected in DC current can be removed by it.
In one embodiment, low-frequency filter circuit 122 and high-frequency filter circuit 124 can be adjusted simultaneously, with
Realize the depth filtering to a certain frequency point.To low-frequency filter circuit 122 parameter adjustment during, can to it is therein extremely
The parameter of a few component is adjusted, to achieve the purpose that change the parameter of low-frequency filter circuit 122.Implement in others
It, can be by the adjustment of the parameter to all components come the adjustment of the parameter for the low-frequency filter circuit 122 realized in example.High frequency
Filter circuit 124 can use similar Principles of Regulation.
In one embodiment, low-frequency filter circuit 122 includes magnetic device L1, first capacitor C1 and the second capacitor C2, such as
Shown in Fig. 2.Wherein, magnetic device string L1 is coupled on corresponding output branch 120.One end of first capacitor C1 and magnetic device L1
One end connection, first capacitor C1 the other end ground connection.One end of second capacitor C2 is connect with the other end of magnetic device L1, the
The other end of two capacitor C2 is grounded.The Parameter adjustable of at least one in magnetic device L1, first capacitor C1 and the second capacitor C2.Magnetic
Property device L1 can be inductance and magnetic bead etc..In the present embodiment, magnetic element L1 is variable inductance, first capacitor C1 and second
Capacitor C2 is variable capacitance.
In one embodiment, high-frequency filter circuit 124 includes the first inductance L2 and third capacitor C3.First inductance L2 and
Three capacitor C3 connect to form filter branch.One end of filter branch is connect with low-frequency filter circuit 122.The other end of filter branch
Ground connection.The Parameter adjustable of at least one in first inductance L2 and third capacitor C3.In the present embodiment, third capacitor C3 connects
It is grounded after first inductance L2.The parameter of first inductance L2 and third capacitor C3 are adjustable.In other examples, third capacitor
The position of C3 and the first inductance L2 can mutually be exchanged.
In one embodiment, above-mentioned high-frequency filter circuit 124 further includes the second inductance L3 and the 4th capacitor C4.Second inductance
L3 is series at output branch 120.One end of 4th capacitor C4 is connect with the second inductance L3.The other end of 4th capacitor C4 is grounded.
The Parameter adjustable of at least one of second inductance L3 and the 4th capacitor C4.In the present embodiment, the electricity of the second inductance L3 and the 4th
The parameter for holding C4 is adjustable.
In one embodiment, above-mentioned DC power supply further includes display circuit (not shown).Display circuit is each for showing
The low-frequency filter circuit 122 and the current parameter of high-frequency filter circuit 124 in branch 120 are exported, it is each defeated to facilitate user to understand
Current operating conditions in out branch 120.Display circuit can be display screen or analog dial etc..
Above-mentioned DC power supply can neatly be selected the low-frequency filter circuit 122 on output branch 120 according to demand
With each parameter in high-frequency filter circuit 124, to realize to the depth filtering of a certain frequency point.Fig. 3 is one of output branch
In 120 parameter setting procedure, to the filter effect schematic diagram of different frequent points.From figure 3, it can be seen that above-mentioned DC power supply exists
1MHz to 10GHz all has stronger rejection ability, especially has stronger rejection ability in m9 point, thus final output
More clean DC current.
In one embodiment, a kind of power supply unit is also provided.The power supply unit includes the direct current in aforementioned any embodiment
Power supply, so as to provide more clean DC current for each power receiving equipment.The power supply unit can be mobile power source etc..
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (9)
1. a kind of DC power supply characterized by comprising
Main power circuit, for providing DC current；And
Output branch at least all the way；Per output branch all the way for being connect at least one power receiving equipment；Per output branch all the way
Lu Zhongjun is in series with low-frequency filter circuit and high-frequency filter circuit；Per the low-frequency filter circuit and the institute exported in branch all the way
The parameter for stating high-frequency filter circuit is adjustable；
The high-frequency filter circuit includes the first inductance and third capacitor；First inductance and the third capacitor connect to be formed
Filter branch；One end of the filter branch is connect with the low-frequency filter circuit；The other end of the filter branch is grounded；Institute
State the Parameter adjustable of at least one in the first inductance and the third capacitor.
2. DC power supply according to claim 1, which is characterized in that the low-frequency filter circuit includes magnetic device,
One capacitor and the second capacitor；The magnetic device is series at corresponding output branch road；One end of the first capacitor with it is described
One end of magnetic device connects, the other end ground connection of the first capacitor；One end of second capacitor and the magnetic device
The other end connection, second capacitor the other end ground connection；The magnetic device, the first capacitor and second capacitor
In at least one Parameter adjustable.
3. DC power supply according to claim 2, which is characterized in that the magnetic device include inductance, in magnetic bead extremely
Few one kind.
4. DC power supply according to claim 2, which is characterized in that describedly for mainboard.
5. DC power supply according to claim 1, which is characterized in that the high-frequency filter circuit further include the second inductance and
4th capacitor；Second inductance is series at the output branch；One end of 4th capacitor and second inductance connection；
The other end of 4th capacitor is grounded；The Parameter adjustable of at least one of second inductance and the 4th capacitor.
6. DC power supply according to claim 1, which is characterized in that further include detection circuit；The detection circuit is used for
The clutter frequency in the DC current in each output branch is detected, to the low-frequency filter circuit and the high-frequency filter circuit
In parameter be adjusted.
7. DC power supply according to claim 6, which is characterized in that further include adjusting circuit；The adjusting circuit and institute
Detection circuit and each output branch connection are stated, for the testing result according to the detection circuit in corresponding output branch
The parameter of low-frequency filter circuit and high-frequency filter circuit is adjusted.
8. DC power supply according to claim 1, which is characterized in that further include display circuit；The display circuit is used for
Show the low-frequency filter circuit and the current parameter of the high-frequency filter circuit.
9. a kind of power supply unit, which is characterized in that including the DC power supply as described in claim 1~8 is any.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821965259.XU CN209675936U (en) | 2018-11-27 | 2018-11-27 | DC power supply and power supply unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821965259.XU CN209675936U (en) | 2018-11-27 | 2018-11-27 | DC power supply and power supply unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209675936U true CN209675936U (en) | 2019-11-22 |
Family
ID=68561605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821965259.XU Active CN209675936U (en) | 2018-11-27 | 2018-11-27 | DC power supply and power supply unit |
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| Country | Link |
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| CN (1) | CN209675936U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113176004A (en) * | 2021-04-26 | 2021-07-27 | 精进电动科技股份有限公司 | Temperature measurement circuit and motor controller |
-
2018
- 2018-11-27 CN CN201821965259.XU patent/CN209675936U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113176004A (en) * | 2021-04-26 | 2021-07-27 | 精进电动科技股份有限公司 | Temperature measurement circuit and motor controller |
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