CN202929083U - Current conversion module used for active power filter - Google Patents
Current conversion module used for active power filter Download PDFInfo
- Publication number
- CN202929083U CN202929083U CN 201220690423 CN201220690423U CN202929083U CN 202929083 U CN202929083 U CN 202929083U CN 201220690423 CN201220690423 CN 201220690423 CN 201220690423 U CN201220690423 U CN 201220690423U CN 202929083 U CN202929083 U CN 202929083U
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- current
- mutual inductor
- terminal
- active power
- conversion module
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Abstract
Provided is a current conversion module used for an active power filter. The current conversion module comprises a Hall current transformer, an input current terminal and an output voltage terminal. The input current terminal is connected with the input end of the Hall current transformer. The output voltage terminal is connected with the output end of the Hall current transformer. The Hall current transformer, the input current terminal and the output voltage terminal are all welded on a printed circuit board. According to the module of the utility model, an electromagnetic induction current transformer can be directly utilized without changes of an original circuit of the active power filter.
Description
Technical field
The utility model relates to the electric-power filter technical field, is specifically related to a kind of current conversion module for Active Power Filter-APF.
Background technology
Measurement range is wide owing to having for the Hall current mutual inductor, fast response time, measuring accuracy is high, volume is little, lightweight and be easy to the advantage such as installation, be the measuring sensor of load current by the Active Power Filter-APF first-selection.But, due to the operating characteristic of Hall current mutual inductor itself, determined that it can't use in parallel.In some use occasion, Active Power Filter-APF need to access many group load current signals, and because the Active Power Filter-APF input interface is limited, requirement will be organized input interface of signal access in parallel more, and at this moment, the Hall current mutual inductor can't meet the demands.Simultaneously, because the output interface of Hall current mutual inductor is voltage signal, can't be compatible mutually with the current signal of traditional electrical magnetic inductive current transformer output, cause using the Active Power Filter-APF of Hall current mutual inductor can't directly use traditional electrical magnetic inductive current transformer, must again change circuit could use, thus the difficulty that has caused engineering to use.
Summary of the invention
Technical matters for above-mentioned existence, the utility model provides a kind of current conversion module for Active Power Filter-APF, in the situation that do not change the original design of Active Power Filter-APF, can use traditional induction current transformer, thereby increase its dirigibility in engineering is used.
The utility model solves the problems of the technologies described above by the following technical solutions: a kind of current conversion module for Active Power Filter-APF, comprise Hall current mutual inductor, input current terminal and output voltage terminal, wherein, the input current terminal connects the input end of Hall current mutual inductor, the output terminal of output voltage terminal sub-connection Hall current mutual inductor.Described Hall current mutual inductor, input current terminal and output voltage terminal are welded on printed circuit board (PCB).
The Hall current mutual inductor is selected small-range welded type mutual inductor, and according to requirement of engineering, the input current range is chosen as 0 ~ 5A, 0 ~ 10A or 0 ~ 15A, and output range is 0 ~ 4V.
The output voltage terminal also is responsible for the direct supply that access is used for supplying with the work of Hall current mutual inductor except the voltage signal of Hall current mutual inductor output is externally exported.
Description of drawings
Fig. 1 is the structural representation of the current conversion module for Active Power Filter-APF described in the utility model.
Fig. 2 is the electrical connection schematic diagram of the current conversion module for Active Power Filter-APF described in the utility model.
Embodiment
As shown in Figure 1, the current conversion module for Active Power Filter-APF described in the utility model comprises input current terminal 1, Hall current mutual inductor 2, output voltage terminal 3 and printed circuit board (PCB) 4.Wherein:
Input current terminal 1 is responsible for providing splicing ear, and access traditional electrical magnetic inductive current transformer simultaneously, passes to the Hall current mutual inductor by printed circuit board (PCB) with signal;
Hall current mutual inductor 2, be responsible for converting the large current signal of traditional electrical magnetic inductive current transformer input to the small voltage signal, use small-range welded type mutual inductor, input range can be according to requirement of engineering, select 0 ~ 5A, 0 ~ 10A or 0 ~ 15A, output range is 0 ~ 4V.
Printed circuit board (PCB) 4 is responsible for input current terminal 1, Hall current mutual inductor 2 and output voltage terminal 3 are connected as one from electric, consists of the module of telotism.
As shown in Figure 2, the principle of work of the current conversion module for Active Power Filter-APF described in the utility model is as follows:
Input current terminal 1 provides splicing ear, the current signal of access multichannel traditional electrical magnetic inductive current transformer in parallel output, by printed circuit board (PCB), signal is passed to Hall current mutual inductor 2, the large current signal that Hall current mutual inductor 2 will be inputted converts the small voltage signal to, pass to 3 outputs of output voltage terminal by printed circuit board (PCB), simultaneously, output voltage terminal 3 input DC powers are supplied with the work of Hall current mutual inductor by printed circuit board (PCB).
Claims (2)
1. current conversion module that is used for Active Power Filter-APF, it is characterized in that: this current conversion module comprises Hall current mutual inductor, input current terminal and output voltage terminal, wherein, the input current terminal connects the input end of Hall current mutual inductor, the output terminal of output voltage terminal sub-connection Hall current mutual inductor, described Hall current mutual inductor, input current terminal and output voltage terminal are welded on printed circuit board (PCB).
2. a kind of current conversion module for Active Power Filter-APF as claimed in claim 1, it is characterized in that: described Hall current mutual inductor is selected small-range welded type mutual inductor, according to requirement of engineering, the input current range is chosen as 0 ~ 5A, 0 ~ 10A or 0～15A, and output range is 0 ~ 4V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220690423 CN202929083U (en) | 2012-12-14 | 2012-12-14 | Current conversion module used for active power filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220690423 CN202929083U (en) | 2012-12-14 | 2012-12-14 | Current conversion module used for active power filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202929083U true CN202929083U (en) | 2013-05-08 |
Family
ID=48219032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220690423 Expired - Fee Related CN202929083U (en) | 2012-12-14 | 2012-12-14 | Current conversion module used for active power filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202929083U (en) |
-
2012
- 2012-12-14 CN CN 201220690423 patent/CN202929083U/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 | ||
| 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: 20130508 Termination date: 20211214 |