CN110165759A - Charging circuit and the method for reducing power dissipation - Google Patents
Charging circuit and the method for reducing power dissipation Download PDFInfo
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- CN110165759A CN110165759A CN201910541512.1A CN201910541512A CN110165759A CN 110165759 A CN110165759 A CN 110165759A CN 201910541512 A CN201910541512 A CN 201910541512A CN 110165759 A CN110165759 A CN 110165759A
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- 230000002045 lasting effect Effects 0.000 description 3
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- 238000010792 warming Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
-
- H02J7/027—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
This application involves a kind of charging circuits and the method for reducing power dissipation, are applied to charging unit, charging circuit includes: power supply, for inputting charging signals；Filter capacitor is connected to the output end of power supply, for filtering out the high frequency differential mode signal in the charging signals；Switch module is connected with the filter capacitor；Control module is connect with the switch module, is disconnected for when the charging unit enters standby mode, controlling the switch module；When the charging unit enters operating mode, the switch module conducting is controlled.By when the charging unit enters standby mode, controlling the connection of the filter capacitor disconnection and the power supply, to reduce the consume of reactive power under standby mode, further electric energy of saving reduces cost.
Description
Technical field
This application involves energy-saving charging technical fields, more particularly, to the side of a kind of charging circuit and reduction power dissipation
Method.
Background technique
Since present ecological environment is got more and more attention, major source of the automobile as carbon emission, the gases such as carbon dioxide
Discharge leads to climate warming, and various countries are increasingly stringent to carbon emission standard and the criterion of the fuel consumption and regulation.Petroleum dependence is got rid of, carbon is reduced
It is imperative to develop new-energy automobile for discharge.So automobile industry is faced with a completely new history node, new energy instantly
The rapid development of automobile will certainly slowly replace fuel-engined vehicle.And the charging equipment of electric car also can be with the hair of electric car
It opens up and develops.
Direct-current charging post is that very common charging equipment, core devices are DC charging module on the market at present, for example,
The four rifle direct-current charging posts of common 240kW on the market, inside is made of the DC charging module of 12 20kW, however is filled at present
There is very big reactive power loss in standby mode in electric stake.
Summary of the invention
Based on this, it is necessary to there are problems that very big reactive power loss in standby mode charging module, provide one
Kind charging circuit and the method for reducing power dissipation.
A kind of charging circuit is applied to charging unit, comprising:
Power supply, for inputting charging signals；
Filter capacitor is connected to the output end of power supply, for filtering out the high frequency differential mode signal in the charging signals；
Switch module is connected with the filter capacitor；
Control module is connect with the switch module, for when the charging unit enters standby mode, described in control
Switch module disconnects；When the charging unit enters operating mode, the switch module conducting is controlled.
The power supply is three phase mains in one of the embodiments, and tool is there are three output end, and any two output end
Between be equipped with the filter capacitor and switch module of a pair of series, each switch module is by control module control switch.
Connection triangular in shape between the three-phase of the three phase mains in one of the embodiments,.
It is in one of the embodiments, in star-like connection between the three-phase of the three phase mains.
The number of the control module is multiple in one of the embodiments, corresponding with the switch module respectively to connect
It connects, each control module controls the corresponding switch module and disconnects or be connected.
The control module is digital signal processor in one of the embodiments,.
The switch module in one of the embodiments, including relay, contactor, semiconductor switch are a kind of or more
The combination of kind.
The charging circuit further includes protective module in one of the embodiments, is connected in parallel with the first branch,
In, the switch module and the filter capacitor connect to form the first branch.
The protective module is discharge resistance in one of the embodiments,.
The charging circuit further includes cue module in one of the embodiments, is connect with the control module, is used
In:
When the charging unit enters operating mode, the first instruction that the control module issues is received, and according to institute
The first instruction is stated, the first standby signal is generated and is started with identifying charging；
When the charging unit enters standby mode, the second instruction that the control module issues is received, and according to institute
The second instruction is stated, generate the second standby signal terminates to identify charging.
A method of power dissipation is reduced, charging unit is applied to, which comprises
Control filter capacitor filters out the high frequency differential mode signal in the charging signals of power input, wherein the filter capacitor
It is connected to the output end of power supply；
When the charging unit enters standby mode, disconnect switch module and the filter capacitor using control module
Connection, wherein the switch module is connected with the filter capacitor；
When the charging unit enters operating mode, the company of the switch module foundation and the filter capacitor is controlled
It connects.
The charging unit further includes state acquisition module in one of the embodiments, is connect with the control module,
The method also includes: the working condition of the charging unit is obtained using the state acquisition module.
The charging unit further includes cue module in one of the embodiments, described to obtain mould using the state
After block obtains the working condition of the charging unit, the method also includes:
When the state acquisition module, which gets the charging unit, enters operating mode, first state signal is issued extremely
The cue module is started so that the cue module generates the first standby signal with mark charging；
When the state acquisition module, which gets the charging unit, enters standby mode, the second status signal is issued extremely
The cue module is terminated so that the cue module generates the second standby signal with mark charging.
In one of the embodiments, after sending second status signal to the cue module, the method is also
It include: to issue second status signal to the control module, so that the control module using the state acquisition module
Open command is sent to the switch module, triggers the connection of the switch module disconnection and the filter capacitor.
In one of the embodiments, before the sending first state signal to the cue module, the method is also
It include: to issue first state signal to the control module, so that the control module is sent using the state acquisition module
Close command triggers the connection of the switch module foundation and the filter capacitor to the switch module.
Above-mentioned charging circuit and the method for reducing power dissipation, are applied to charging unit, and charging circuit includes: power supply, use
In input charging signals；Filter capacitor is connected to the output end of power supply, for filtering out the letter of the high frequency differential mode in the charging signals
Number；Switch module is connected with the filter capacitor；Control module is connect with the switch module, for working as the charging unit
When into standby mode, controls the switch module and disconnect；When the charging unit enters operating mode, the switch is controlled
Module conducting.By the company for when the charging unit enters standby mode, controlling the filter capacitor disconnection and the power supply
It connects, to reduce the consume of reactive power under standby mode, further electric energy of saving reduces cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the charging circuit of one embodiment of the application；
Fig. 2 is the structural schematic diagram of the three-phase charging circuit of one embodiment of the application；
Fig. 3 is the structural schematic diagram of the three-phase charging circuit of the another embodiment of the application；
Fig. 4 is the method flow diagram of the reduction power dissipation of one embodiment of the application.
Specific embodiment
The application in order to facilitate understanding, in order to make the above objects, features, and advantages of the present application more apparent, under
Face is described in detail in conjunction with specific embodiment of the attached drawing to the application.It is explained in the following description many details
In order to fully understand the application, the better embodiment of the application is given in attached drawing.But the application can be with many not
With form realize, however it is not limited to embodiments described herein.On the contrary, the purpose of providing these embodiments is that making
Disclosure of this application is understood more thorough and comprehensive.The application can be to be much different from other way described herein
Implement, those skilled in the art can do similar improvement without prejudice to the application intension, therefore the application not by
The limitation of following public specific embodiment.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present application, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.In the description of the present application, " several " are meant that at least one, such as one,
Two etc., unless otherwise specifically defined.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.
Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application
The normally understood meaning of technical staff is identical.Term used herein is intended merely to the mesh of description specific embodiment
, it is not intended that in limitation the application.Term " and or " used herein includes one or more relevant listed items
Any and all combinations.
The embodiment of the present application provides a kind of charging circuit 10, is applied to charging unit, as shown in Figure 1, charging circuit 10 wraps
It includes: power supply 110, for inputting charging signals；Filter capacitor 120 is connected to the output end of power supply 110, for filtering out charging letter
High frequency differential mode signal in number；Switch module 130 is connected with filter capacitor 120；Control module 140 connects with switch module 130
It connects, for when charging unit enters standby mode, control switch module 130 to be disconnected；When charging unit enters operating mode,
Control switch module 130 is connected.
Specifically, electric supply product is to solve electromagnetic noise interference can all increase between triple line or between single-phase
Electromagnetic interference caused by high frequency differential mode signal of the filter capacitor 120 to filter out the generation of power supply 110.Wherein, filter capacitor 120 with open
It closes module 130 to connect, switch module 130 is controlled by control module 140, the state of the available charging unit of control module 140.
When charging unit is in charged state, i.e. for charging unit for load supplying, control module 140 obtains charging unit
State be operating mode, then control switch module 130 be connected so that filter capacitor 120 is connect with power supply 110, and filter out and fill
High frequency differential mode signal in electric signal.In the case that charging unit is not load supplying, control module 140 obtains charging dress
The state set is standby mode, then control switch module 130 disconnects, so that filter capacitor 120 is disconnected with power supply 110.
Wherein, under standby mode, when filter capacitor 120 and power supply 110 disconnect, output voltage and output electric current are same
Phase, charging circuit are in resistive load；When filter capacitor 120 is connect with power supply 110, and advanced 90 ° of output voltage of electric current are exported, is in
Capacitive load.And charging circuit is lower than the reactive power loss of capacitive load in resistive load under standby mode, using energy source
Rate is higher.
Power supply 110 is three phase mains in one of the embodiments, and tool is there are three output end, and any two output end
Between be equipped with the filter capacitor 120 and switch module 130 of a pair of series, each switch module 130 is controlled by control module 140
System switch.
Specifically, power supply 110 is three output ends a, b, c of three phase mains.Between output end a and output end b, output end
Between a and output end c, between output end b and output end c, it is provided with concatenated filter capacitor 120 and switch module 130, often
A switch module 130 is controlled the connection of filter capacitor 120 and power supply 110 by control module 140.
Connection triangular in shape between the three-phase of three phase mains in one of the embodiments,.
As shown in Fig. 2, each switch module 130 is used to control the connection of filter capacitor 120 disconnection and corresponding power 110；
Each filter capacitor 120 is used to filter out electricity caused by 110 input signal of corresponding power when the switch module 130 of connection is closed
Magnetic disturbance.
That is switch module K1 control filter capacitor C1 and power supply power supply Ua is connected or disconnected, and filter capacitor C1 is used for when switch
When module K1 is closed, electromagnetic interference caused by power supply Ua input signal is filtered out.Switch module K2 controls filter capacitor C2 and power supply
Power supply Ub is connected or disconnected, and filter capacitor C2 is used to filter out electricity caused by power supply Ub input signal when switch module K2 closure
Magnetic disturbance.Switch module K3 control filter capacitor C3 and power supply power supply Uc is connected or disconnected, and filter capacitor C3 is for working as switching molding
When block K3 is closed, electromagnetic interference caused by power supply Uc input signal is filtered out.
It is in one of the embodiments, in star-like connection between the three-phase of three phase mains.
As shown in figure 3, three phase mains includes power supply Ua, power supply Ub and power supply Uc, wherein power supply Ua, power supply Ub and power supply
Uc is in star-like connection；Switch module K1 is connect with power supply Ua and power supply Ub, for control power supply Ua and power supply Ub whether with filtering
Capacitor C1 connection；Switch module K2 is connect with power supply Ua and power supply Uc, for control power supply Ua and power supply Uc whether with filtered electrical
Hold C2 connection；Switch module K3 is connect with power supply Ub and power supply Uc, for control power supply Ub and power supply Uc whether with filter capacitor
C3 connection；Filter capacitor C1, filter capacitor C2 and filter capacitor C3 are corresponded with three switch modules K1, K2 and K3 respectively
Connection, filter capacitor C1, filter capacitor C2 and filter capacitor C3 are used for when switch module K1, K2 and K3 closure being correspondingly connected with
When, filter out electromagnetic interference caused by the power input high frequency differential mode signal being correspondingly connected with.
In one of the embodiments, the number of control module 140 be it is multiple, multiple control modules 140 respectively with switch
Module is correspondingly connected with, and each control module controls corresponding switch module and disconnects or be connected.
Wherein, the number of control module 140 can be consistent with the number of switch module 130, is three, each control
Module 140 controls a switch module 130 being correspondingly connected with, and is used for the control switch when charging unit enters operating mode
Module 130 is connected, and does so that filter capacitor 120 is closed the connection with power supply 110 and filters out electromagnetism caused by high frequency differential mode signal
It disturbs.When charging unit enters standby mode, control switch module 130 is disconnected, so that filter capacitor 120 disconnects and power supply
110 connection.
Control module 140 is digital signal processor in one of the embodiments,.
Digital signal processor can be Digital Signal Processing DSP (Digital Signal Processing) chip.
The inside of the dsp chip Harvard structure separated using program and data, has special hardware multiplier, assembly line is widely used
Operation provides special DSP instruction, can be used to quickly realize various digital signal processing algorithms.It is obtained using dsp chip
The state of charging unit, when charging unit enters standby mode, control switch module 130 is disconnected；When charging unit enters work
When operation mode, control switch module 130 is connected.
Switch module 130 is one or more including relay, contactor, semiconductor switch in one of the embodiments,
Combination.
Relay (relay) is a kind of electric control device, be when the variation of input quantity (energizing quantity) reaches prescribed requirement,
Make controlled volume that a kind of electric appliance of scheduled Spline smoothing occur in electrical output circuit, realization is opened or closed.
Contactor, for it is remote, be frequently switched on electricity with disjunction AC and DC main circuit and large capacity control circuit
Device.Its main control object is motor, it is also possible to it is electric to make control heating equipment, electric lighting, electric welding machine and capacitor group etc.
Power load.Contactor is divided into A.C. contactor (voltage AC) and D.C. contactor (voltage DC), it is applied to electric power, distribution and use
Electricity.
Semiconductor switch, sensor made of the various physical, chemical and biological properties using semiconductor material.It is adopted
Semiconductor material majority is silicon, III-V race and II-VI group element compound.Semiconductor switch can be insulated-gate type field
Effect pipe (Metal Oxide Semiconductor FET, MOSFET) switch, double pole triode (Bipolar
Junction Transistor, BJT) switch or insulated gate bipolar transistor (Insulated Gate Bipolar
Transistor, IGBT) switch.
Charging circuit 10 further includes protective module in one of the embodiments, is connected in parallel with the first branch, wherein
Switch module 130 and the series connection of filter capacitor 120 form the first branch.
Protective module is discharge resistance in one of the embodiments,.
Specifically, the resistance value of protective module is larger, such as 1000 kilo-ohms, 1500 kilo-ohms of resistance value, above-mentioned numerical value are only used for
For example, not making specific limit to protective module.Protective module is connected in parallel with the first branch, and protective module can will filter
The electric current of wave capacitor 120 to spark is discharged and is consumed, and prevents electric current is excessive from circuit being caused to burn out.Protective module can be instead
The diode or discharge resistance connect.
Charging circuit 10 in one of the embodiments, further include: cue module is connect, for working as with control module 140
When charging unit enters operating mode, the first instruction that control module 140 issues is received, and generate first according to the first instruction and mention
Show that signal starts to identify charging；When charging unit enters standby mode, the second instruction that control module 140 issues is received,
And according to the second instruction, generate the second standby signal is terminated with identifying charging.
Specifically, cue module is connect with control module 140, and the course of work is as follows: obtaining charging using control module 140
The state of device, when charging unit enters operating mode, control switch module 130 is connected, and control module 140 issues first
Instruction is to cue module so that cue module receives the first instruction, and generated according to the first instruction generate the first standby signal with
Mark starts to charge.When charging unit enters standby mode, the open circuit of control switch module 130, and control module 140 issues the
Two instructions so that cue module receives the second instruction, and generate the second standby signal according to the second instruction to cue module to mark
Knowing charging terminates.
The embodiment of the present application provides a kind of method for reducing power dissipation, is applied to charging unit, which comprises
Step 402, control filter capacitor filter out the high frequency differential mode signal in the charging signals of power input, wherein filtering
Output end of the capacitance connection in power supply；
Specifically, electric supply product is to solve electromagnetic noise interference can all increase between triple line or between single-phase
Electromagnetic interference caused by high frequency differential mode signal of the filter capacitor to filter out power supply generation.Wherein, filter capacitor and switch module string
Connection, switch module are controlled by control module, the state of the available charging unit of control module, when charging unit is in charging shape
State, filter capacitor filter out electromagnetic interference caused by the high frequency differential mode signal in the charging signals of power input.
Step 404, when charging unit enters standby mode, using control module make switch module disconnect and filter capacitor
Connection, wherein switch module is connected with filter capacitor；Step 406, when charging unit enters operating mode, control switch
Module establishes the connection with filter capacitor.
Specifically, when charging unit is in charged state, i.e. charging unit is for load supplying, control module
The state for obtaining charging unit is operating mode, then control switch module is connected, so that filter capacitor connects to power supply, and filters out
High frequency differential mode signal in charging signals.In the case that charging unit is not load supplying, control module obtains charging dress
The state set is standby mode, then control switch module disconnects, so that filter capacitor is disconnected with power supply.Wherein, standby
Under mode, when filter capacitor and power supply disconnect, output voltage and output current in phase, charging circuit is in resistive load；When
Filter capacitor connects to power supply, and exports advanced 90 ° of output voltage of electric current, is in capacitive load.And charging circuit under standby mode
Lower than the reactive power loss of capacitive load in resistive load, energy utilization rate is higher.
Charging unit further includes state acquisition module in one of the embodiments, is connect with control module, and method is also wrapped
It includes: obtaining the working condition of charging unit using state acquisition module.
Specifically, when the course of work of state acquisition module: knowing between the output end and load by detecting charging circuit no
There are lasting current signal or current-jump, when the size of current for getting current signal is persistently greater than preset threshold, then regards
Operating mode is in for charging unit；When getting the size of current of current signal continuously less than preset threshold is equal to, then it is considered as
Charging unit is in standby mode；When the size of current signal jumps, it is greater than threshold value from being less than threshold value and becoming lasting, then
Indicate that charging unit enters operating mode；When the size of current signal jumps, it is less than threshold from being greater than threshold value and becoming lasting
Value, then it represents that charging unit enters standby mode.
Charging unit further includes cue module in one of the embodiments, obtains charging dress using state acquisition module
After the working condition set, the method also includes: when state acquisition module, which gets charging unit, enters operating mode, hair
First state signal is started to cue module so that cue module generates the first standby signal with mark charging out；When state obtains
When modulus block gets charging unit and enters standby mode, the second status signal is issued to cue module, so that cue module is raw
At the second standby signal, terminated with mark charging.
Specifically, the work state information that state acquisition module will acquire generates corresponding status signal, work as charging unit
Into operating mode, first state signal is issued to cue module, cue module can be indicator light, voice broadcast module etc.,
When cue module receives first state signal, then the first standby signal of corresponding generation, starts to identify charging unit charging.
Similarly, when charging unit enters standby mode, issue the second status signal to cue module, cue module can be indicator light,
Voice broadcast module etc., when cue module receives the second status signal, then the second standby signal of corresponding generation, fills to identify
Electric installation charging terminates.
After issuing the second status signal to cue module in one of the embodiments, the method also includes: it utilizes
State acquisition module issues the second status signal to control module, so that control module sends open command to switch module, touching
Send out the connection of switch module disconnection and filter capacitor.
Specifically, state acquisition module can also incite somebody to action after state acquisition module issues the second status signal to cue module
Second status signal is sent to control module, the connection with filter capacitor is disconnected with trigger switch module, to reduce standby mould
Reactive power loss under formula.
Before issuing first state signal to cue module in one of the embodiments, method further include: utilize state
It obtains module and issues first state signal to control module, so that control module sends close command to switch module, triggering is opened
Close the connection of module foundation and filter capacitor.
Specifically, state acquisition module can also incite somebody to action before state acquisition module issues first state signal to cue module
First state signal is sent to control module, establishes the connection with filter capacitor with trigger switch module, it is ensured that charging unit exists
When charging for load, filter capacitor is in running order, to filter out the high frequency differential mode signal in charging signals.
The method of above-mentioned reduction power dissipation is applied to charging unit, filters out power input using control filter capacitor
High frequency differential mode signal in charging signals, wherein filter capacitor is connected to the output end of power supply；When the charging unit enter to
When machine mode, switch module is set to disconnect the connection with the filter capacitor using control module, wherein the switch module and institute
State filter capacitor series connection；When the charging unit enters operating mode, controls the switch module and establish and the filtered electrical
The connection of appearance.By the company for when the charging unit enters standby mode, controlling the filter capacitor disconnection and the power supply
It connects, to reduce the consume of reactive power under standby mode, further electric energy of saving reduces cost.
It should be understood that although each step in the flow chart of Fig. 4 is successively shown according to the instruction of arrow, this
A little steps are not that the inevitable sequence according to arrow instruction successively executes.Unless expressly state otherwise herein, these steps
It executes there is no the limitation of stringent sequence, these steps can execute in other order.Moreover, at least part in Fig. 4
Step may include that perhaps these sub-steps of multiple stages or stage are executed in synchronization to multiple sub-steps
It completes, but can execute at different times, the execution sequence in these sub-steps or stage, which is also not necessarily, successively to be carried out,
But it can be executed in turn or alternately at least part of the sub-step or stage of other steps or other steps.
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.It should be noted that " in an embodiment ", " example of the application
Such as ", " for another example ", it is intended to the application is illustrated, rather than for limiting the application.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
The limitation to claim therefore cannot be interpreted as.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of charging circuit is applied to charging unit characterized by comprising
Power supply, for inputting charging signals；
Filter capacitor is connected to the output end of power supply, for filtering out the high frequency differential mode signal in the charging signals；
Switch module is connected with the filter capacitor；
Control module is connect with the switch module, for controlling the switch when the charging unit enters standby mode
Module disconnects；When the charging unit enters operating mode, the switch module conducting is controlled.
2. charging circuit according to claim 1, which is characterized in that
The power supply is three phase mains, and there are three output ends for tool, and the filter of a pair of series is equipped between any two output end
Wave capacitor and switch module, each switch module is by control module control switch.
3. charging circuit according to claim 2, which is characterized in that company triangular in shape between the three-phase of the three phase mains
It connects.
4. charging circuit according to claim 2, which is characterized in that connect between the three-phase of the three phase mains in star
It connects.
5. according to the described in any item charging circuits of claim 2-4, which is characterized in that the number of the control module is three
It is a, it is correspondingly connected with respectively with the switch module, each control module controls the corresponding switch module and disconnects or lead
It is logical.
6. a kind of method for reducing power dissipation, is applied to charging unit, which is characterized in that the described method includes:
Control filter capacitor filters out the high frequency differential mode signal in the charging signals of power input, wherein the filter capacitor connection
In the output end of power supply；
When the charging unit enters standby mode, switch module is set to disconnect the company with the filter capacitor using control module
It connects, wherein the switch module is connected with the filter capacitor；
When the charging unit enters operating mode, the connection of the switch module foundation and the filter capacitor is controlled.
7. according to the method described in claim 6, it is characterized in that, the charging unit further includes state acquisition module, with institute
Control module connection is stated, the method also includes:
The working condition of the charging unit is obtained using the state acquisition module.
8. the method according to the description of claim 7 is characterized in that the charging unit further includes cue module, the utilization
After the state acquisition module obtains the working condition of the charging unit, the method also includes:
When the state acquisition module, which gets the charging unit, enters operating mode, first state signal is issued to described
Cue module is started so that the cue module generates the first standby signal with mark charging；
When the state acquisition module, which gets the charging unit, enters standby mode, the second status signal is issued to described
Cue module is terminated so that the cue module generates the second standby signal with mark charging.
9. according to the method described in claim 8, it is characterized in that, the second status signal of the sending to the cue module it
Afterwards, the method also includes:
Second status signal is issued to the control module, so that the control module is sent out using the state acquisition module
It send open command to the switch module, triggers the connection of the switch module disconnection and the filter capacitor.
10. according to the method described in claim 8, it is characterized in that, the sending first state signal is to the cue module
Before, the method also includes:
First state signal is issued to the control module, so that control module transmission is closed using the state acquisition module
Instruction is closed to the switch module, triggers the connection of the switch module foundation and the filter capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910541512.1A CN110165759A (en) | 2019-06-21 | 2019-06-21 | Charging circuit and the method for reducing power dissipation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910541512.1A CN110165759A (en) | 2019-06-21 | 2019-06-21 | Charging circuit and the method for reducing power dissipation |
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| CN110165759A true CN110165759A (en) | 2019-08-23 |
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ID=67626405
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910541512.1A Pending CN110165759A (en) | 2019-06-21 | 2019-06-21 | Charging circuit and the method for reducing power dissipation |
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| CN110611433A (en) * | 2019-10-18 | 2019-12-24 | 深圳原能电器有限公司 | Novel loop detection and control circuit |
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