CN202085084U - Current source conversion module - Google Patents
Current source conversion module Download PDFInfo
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- CN202085084U CN202085084U CN2011201861692U CN201120186169U CN202085084U CN 202085084 U CN202085084 U CN 202085084U CN 2011201861692 U CN2011201861692 U CN 2011201861692U CN 201120186169 U CN201120186169 U CN 201120186169U CN 202085084 U CN202085084 U CN 202085084U
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- circuit
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- power supply
- modular converter
- power taking
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Abstract
The utility model relates to a current source conversion module. The current source conversion module comprises an electricity taking unit, a protection unit, an MCU (main control unit), a connecting terminal of an external energy storage element, and an electronic switch controlling the on/off of a branch circuit where the connecting terminal is located; the electricity taking unit comprises a current mode power supply winding, a rectifying circuit and a filter circuit, which are connected in sequence; the protection unit comprises a sampling circuit, a comparator and a circuit protection action element, which are connected in sequence; the input end of the sampling circuit is connected with the output end of the filter circuit; the circuit protection action element is connected with the current mode power supply winding; the MCU is connected to the output end of the electricity taking unit; and the control signal output end of the MCU is connected to the control end of the circuit protection action element and the control end of the electronic switch respectively. The current source conversion module is economic and applicable, has a high safety factor, and is suitable for taking electricity through load current induction from conducting wires of any voltage grade; and the current source conversion module has the functions of conversion module and receiving equipment protection, extra electric energy used for storage, and intelligent switching between charging and power supply.
Description
Technical field
The utility model relates to a kind of power module, particularly a kind of current source modular converter that is suitable for the free voltage grade and can responds to power taking from the lead load current.
Background technology
Existing being used for adopted high pressure P T power taking from the modular converter of cable line power taking more; there is potential safety hazard; self circuit protection that adopt when input current is too high more; make corresponding modular converter and load equipment very easily be hit and damage; and the output and the charging terminal of existing most modular converter mostly are parallel form; do not do isolation processing, both can produce harmful effect each other.
The utility model content
For overcoming the above-mentioned defective of prior art, the utility model provides a kind of current source modular converter, and the coefficient of safety height has modular converter itself and power receiving equipment defencive function and intelligent charge function, and output and serving as between terminal is independent of each other.
The main technical schemes that the utility model adopts is:
A kind of current source modular converter, comprise from the power circuit power taking and convert thereof into the power taking unit of load electricity consumption, described power taking unit comprises current mode power supply winding, rectification circuit and the filter circuit that connects successively, and described power taking unit is provided with the output that powers to the load.
Described current source modular converter can also comprise protected location; described protected location can comprise sample circuit, comparator and the circuit protection action element that connects successively; the input of described sample circuit is connected with the output of described filter circuit, and described circuit protection action element is connected with described current mode power supply winding.
Described current source modular converter can also comprise the main control unit of the described circuit protection action element of may command break-make; described main control unit is connected the output of described power taking unit; described main control unit is provided with first control signal output ends; described circuit protection action element is preferably thyristor; the control utmost point of described thyristor connects described first control signal output ends, and two other utmost point connects two outputs of described current mode power supply winding respectively.
Described current mode power supply winding is preferably open type current mode power supply winding.
Described current source modular converter can also comprise the energy storage branch road of the binding post that is provided with external energy-storage travelling wave tube, the two ends of described energy storage branch road connect two outputs of described power taking unit respectively, thereby described energy storage branch road is provided with and can controls the electronic switch that its break-make is controlled described energy storage branch road break-make by described main control unit.
Described electronic switch can be N type metal-oxide-semiconductor, described main control unit is provided with second control signal output ends, described second control signal output ends connects the control end of described N type metal-oxide-semiconductor, the drain electrode of the terminal of the forward output of described power taking unit and described N type metal-oxide-semiconductor constitutes two binding posts of described external energy-storage travelling wave tube, the source ground of described N type metal-oxide-semiconductor.
The beneficial effects of the utility model are: owing to adopt the power taking of current mode power supply winding, and economic and practical and safe in utilization; Owing to adopt bidirectional thyristor control to switch on or off the power supply of current mode power supply winding,, protected modular converter itself and load effectively from source control power supply; Because the electronic switch that is provided with the binding post of external energy-storage travelling wave tube and controls described external energy-storage travelling wave tube place branch road (being described energy storage branch road) break-make, increased the flexibility of using, the intelligence that can realize powering and charge is switched, realize simultaneously the effective isolation between output and the energy storage again, eliminated the harmful effect of the two.
Description of drawings
Fig. 1 is an operation principle block diagram of the present utility model;
Fig. 2 is a system diagram of the present utility model;
Fig. 3 is the circuit theory schematic diagram of simplification of the present utility model.
Embodiment
The utility model provides a kind of current source modular converter, be applicable to the cable line of free voltage grade, can be from lead load current induction power taking, mainly can be smart electronics IDE device working power is provided, MODEM provides communication power supply for communication apparatus, for motor drive mechanism provides driving power or the like, and can be to backup battery and energy-storage travelling wave tube charging.
As Figure 1-3, described current source modular converter comprises from the power circuit power taking and converts thereof into the power taking unit of load electricity consumption, described power taking unit comprises current mode power supply winding (as power taking CT), rectification circuit and the filter circuit that connects successively, and described power taking unit is provided with the output that powers to the load.Described filter circuit can constitute the output of described power taking unit.By supporting current mode power supply winding is installed on power circuit, after load current in the circuit induced certain electric flux by current mode power supply winding, after passing through the rectifying and wave-filtering of rectification circuit and filter circuit again, direct current with this electric energy conversion becomes load to use uses with electric loading for follow-up automation equipment etc.
In the present embodiment, the lead that the secondary side of described current mode power supply winding picks out preferably adopts 1.2mm
2Above copper cash (in concrete the application, can select different leads for use) according to the difference of current mode power supply winding no-load voltage ratio and peak-peak electric current.As shown in Figure 3, described rectification circuit adopts rectifying bridge type circuit 1, and the electric capacity 2 among the figure can be used for filtering and interim energy storage.
Security consideration for this module and load equipment; described current source modular converter can also comprise protected location; described protected location can comprise sample circuit, comparator and the circuit protection action element that connects successively; the input of described sample circuit is connected with the output of described filter circuit, and described circuit protection action element is connected with described current mode power supply winding.Described circuit protection action element can adopt switch, and described switch is connected between two outputs of described current mode power supply winding.Described sample circuit can the successional sampling of above-mentioned direct current being carried out voltage; give comparator then to compare with the normal voltage of presetting; (described normal voltage voltage range is according to actual needs determined if sampled voltage is higher than described normal voltage; can be set to the higher limit of required voltage); comparator then sends the described circuit protection action element of commands for controlling short circuit front end current mode power supply winding, thereby realizes the protection to subsequent conditioning circuit.
Described current source modular converter can also comprise the main control unit of the described circuit protection action element of may command break-make; described main control unit is connected the output of described power taking unit; described main control unit is provided with first control signal output ends; described circuit protection action element is preferably thyristor 3; the control utmost point of described thyristor connects described first control signal output ends, and two other utmost point connects two outputs of described current mode power supply winding respectively.Adopt thyristor to finish short-circuit protection function, improved reaction speed greatly, reduced output ripple, and working stability is reliable with respect to relay protection.Described main control unit can be used for controlling the break-make of described thyristor.
Described thyristor is preferably bidirectional thyristor, because its positive and negative characteristic has symmetry, can be a kind of desirable alternating-current switch device in any one direction conducting therefore.Be connected by photoelectrical coupler between the control utmost point of described bidirectional thyristor and described first control signal output ends, adopt the photoelectricity coupled modes to connect and to play good buffer action.
For sustaining voltage steady, described power taking can also be provided with voltage stabilizing circuit in the unit, the input of described voltage stabilizing circuit is connected with the output of described filter circuit, at this moment, the output of described voltage stabilizing circuit is as the output of described power taking unit, described sample circuit, comparator and main control unit can be integrated into intelligent control unit 5, be the core control section of described current source modular converter, can be used for judging the on off operating mode whether the curtage parameter of respective lines is in normal level and controls each switch element.
Described voltage stabilizing circuit can adopt voltage-stabiliser tube and/or three terminal regulator, when simultaneously in conjunction with employing voltage-stabiliser tube and three terminal regulator, can obtain better voltage regulation result.
Described current mode power supply winding can be common current mode power supply winding, accuracy there is not very high request, mainly be to finish the power taking function, but owing to the requirement difference of different loads to the power circuit primary current under output voltage, power output and the modular converter institute application scenario of modular converter, the no-load voltage ratio and the overall dimension of described current mode power supply winding can have corresponding variation.For the ease of installing, described current mode power supply winding is preferably Open Type Electric Current Mutual Inductor.
Described current source modular converter can also comprise the energy storage branch road of the binding post that is provided with external energy-storage travelling wave tube, the two ends of described energy storage branch road connect two outputs of described power taking unit respectively, thereby described energy storage branch road is provided with and can controls the electronic switch that its break-make is controlled described energy storage branch road break-make by described main control unit.
Described electronic switch can be N type metal-oxide-semiconductor 4; described main control unit is provided with second control signal output ends; described second control signal output ends connects the control end of described N type metal-oxide-semiconductor; to play the effect of the described metal-oxide-semiconductor break-make of control; the drain electrode of the terminal of the forward output of described power taking unit and described N type metal-oxide-semiconductor constitutes two binding posts of described external energy-storage travelling wave tube; the negative sense output of described power taking unit is with the source ground of described N type metal-oxide-semiconductor, to play the necessary security protective effect.
In the use, both can connect the external energy-storage travelling wave tube of user's apolegamy between two binding posts of described external energy-storage travelling wave tube, also can keep open circuit.For the situation that connects described external energy-storage travelling wave tube, the electric energy that can provide when current mode power supply winding front end can not satisfy or when just having satisfied load request, described main control unit is controlled described electronic switch and is disconnected, the electric energy that described current mode power supply winding collects all is used to power to the load, when excess energy, controlling described electronic switch connects, with unnecessary power storage in described energy-storage travelling wave tube, when current mode power supply winding front end because when unexpected or other situation power down, the electric energy that described energy-storage travelling wave tube fills is supply load automatically, thereby has realized the intelligence of power supply and charging is switched and control.Owing between output and energy storage, adopt metal-oxide-semiconductor to isolate, also eliminated the harmful effect of the two.
Under above-mentioned control mode; for the situation that keeps open circuit; this current source modular converter still can normally use; detailed process is: the electric energy that can provide when current mode power supply winding front end can not satisfy or when just having satisfied load request; described main control unit is controlled described electronic switch and is disconnected; the electric energy that described current mode power supply winding collects all is used to power to the load; when excess energy; controlling described electronic switch connects; because between two binding posts of described external energy-storage travelling wave tube is open-circuit condition; the information that voltage reflected between these two ends is equivalent to described external energy-storage travelling wave tube and has been filled; if the voltage of this moment is higher than the electric voltage of requirement; then described main control unit is controlled described circuit protection action element and is disconnected; front-end protection function moment comes into force; because the existence of electric capacity 2; but its moment is an electric; do not influence the work of load; when this voltage conforms electric voltage request, then return to electric energy that described current mode power supply winding collects again and all be used to the state that powers to the load.
The type of described energy-storage travelling wave tube and quantity can be selected for use and are connected to by the user according to actual needs between two binding posts of described external energy-storage travelling wave tube.
Described current source modular converter can also carry energy-storage travelling wave tube, this energy-storage travelling wave tube is connected between two binding posts of described external energy-storage travelling wave tube, the corresponding work process is identical with the situation of the described external energy-storage travelling wave tube of aforesaid connection, and this energy-storage travelling wave tube preferably adopts super capacitor.
Described power taking current mode power supply winding can be for one or more, and when power taking current mode power supply winding when being a plurality of, they are connected in parallel in the circuit simultaneously, and the corresponding protection unit also can be for a plurality of.
The utility model begins power taking from little load current, and keeps voltage stabilizing output, and the preferred insulation crust of the shell of module adopts the epoxy resin embedding, and is explosion-proof fire-retardant, safe in utilization, when being used for the indoor high-voltage circuit, should install with the power receiving equipment equipotential.
The alleged current mode power supply winding of the utility model is made up of the iron core and the winding of closure, is that a kind of electromagnetic induction principle that utilizes is with the proportional device that is transformed to little electric current of big electric current, as current transformer.
Claims (10)
1. current source modular converter, comprise from the power circuit power taking and convert thereof into the power taking unit of load electricity consumption, it is characterized in that described power taking unit comprises current mode power supply winding, rectification circuit and the filter circuit that connects successively, described power taking unit is provided with the output that powers to the load.
2. current source modular converter as claimed in claim 1; it is characterized in that it also comprises protected location; described protected location comprises sample circuit, comparator and the circuit protection action element that connects successively; the input of described sample circuit is connected with the output of described filter circuit, and described circuit protection action element is connected with described current mode power supply winding.
3. current source modular converter as claimed in claim 2; it is characterized in that also comprising the main control unit of the described circuit protection action element of may command break-make; described main control unit is connected the output of described power taking unit; described main control unit is provided with first control signal output ends; described circuit protection action element is a thyristor; the control utmost point of described thyristor connects described first control signal output ends, and two other utmost point connects two outputs of described current mode power supply winding respectively.
4. current source modular converter as claimed in claim 3 is characterized in that described thyristor is a bidirectional thyristor.
5. current source modular converter as claimed in claim 4, it is characterized in that also being provided with voltage stabilizing circuit in the described power taking unit, the input of described voltage stabilizing circuit is connected with the output of described filter circuit, and the output of described voltage stabilizing circuit is as the output of described power taking unit.
6. current source modular converter as claimed in claim 5 is characterized in that described voltage stabilizing circuit adopts voltage-stabiliser tube and/or three terminal regulator.
7. current source modular converter as claimed in claim 6 is characterized in that described current mode power supply winding is an open type current mode power supply winding.
8. as claim 1,2,3,4,5,6 or 7 described current source modular converters, it is characterized in that also comprising the energy storage branch road of the binding post that is provided with external energy-storage travelling wave tube, the two ends of described energy storage branch road connect two outputs of described power taking unit respectively, thereby described energy storage branch road is provided with and can controls the electronic switch that its break-make is controlled described energy storage branch road break-make by described main control unit.
9. current source modular converter as claimed in claim 8, it is characterized in that described electronic switch is a N type metal-oxide-semiconductor, described main control unit is provided with second control signal output ends, described second control signal output ends connects the control end of described N type metal-oxide-semiconductor, the drain electrode of the terminal of the forward output of described power taking unit and described N type metal-oxide-semiconductor constitutes the binding post of described external energy-storage travelling wave tube, the source ground of described N type metal-oxide-semiconductor.
10. current source modular converter as claimed in claim 9 is characterized in that also comprising super capacitor, and described super capacitor is connected between the binding post of described external energy-storage travelling wave tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201861692U CN202085084U (en) | 2011-06-03 | 2011-06-03 | Current source conversion module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201861692U CN202085084U (en) | 2011-06-03 | 2011-06-03 | Current source conversion module |
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|---|---|
| CN202085084U true CN202085084U (en) | 2011-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201861692U Expired - Fee Related CN202085084U (en) | 2011-06-03 | 2011-06-03 | Current source conversion module |
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| CN (1) | CN202085084U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104425120A (en) * | 2013-08-23 | 2015-03-18 | 台达电子工业股份有限公司 | Sampling circuit for current mutual inductor |
| TWI505612B (en) * | 2013-08-23 | 2015-10-21 | Delta Electronics Inc | Sampling circuit for current transformer |
| CN108230983A (en) * | 2018-01-19 | 2018-06-29 | 昆山国显光电有限公司 | The method for managing power supply of display screen |
| TWI713291B (en) * | 2011-09-23 | 2020-12-11 | J 伊亞勒斯波尼法西歐 | System and method for providing power to a load |
| CN107888193B (en) * | 2016-09-29 | 2021-01-01 | 维谛技术有限公司 | Signal acquisition circuit and signal acquisition device |
| CN113253650A (en) * | 2021-05-20 | 2021-08-13 | 美钻石油钻采系统(上海)有限公司 | Oil-gas signal processing and control system of ocean platform |
| CN113890199A (en) * | 2021-09-24 | 2022-01-04 | 天津送变电工程有限公司 | Induction energy taking device based on overhead transmission line |
-
2011
- 2011-06-03 CN CN2011201861692U patent/CN202085084U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI713291B (en) * | 2011-09-23 | 2020-12-11 | J 伊亞勒斯波尼法西歐 | System and method for providing power to a load |
| US10992182B2 (en) | 2011-09-23 | 2021-04-27 | Bonifacio J. Eyales | Electromagnetic energy-flux reactor |
| CN104425120A (en) * | 2013-08-23 | 2015-03-18 | 台达电子工业股份有限公司 | Sampling circuit for current mutual inductor |
| TWI505612B (en) * | 2013-08-23 | 2015-10-21 | Delta Electronics Inc | Sampling circuit for current transformer |
| CN104425120B (en) * | 2013-08-23 | 2016-07-06 | 台达电子工业股份有限公司 | Sample circuit for current transformer |
| CN107888193B (en) * | 2016-09-29 | 2021-01-01 | 维谛技术有限公司 | Signal acquisition circuit and signal acquisition device |
| CN108230983A (en) * | 2018-01-19 | 2018-06-29 | 昆山国显光电有限公司 | The method for managing power supply of display screen |
| CN113253650A (en) * | 2021-05-20 | 2021-08-13 | 美钻石油钻采系统(上海)有限公司 | Oil-gas signal processing and control system of ocean platform |
| CN113890199A (en) * | 2021-09-24 | 2022-01-04 | 天津送变电工程有限公司 | Induction energy taking device based on overhead transmission line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20190603 |