CN201397723Y - Novel pulse transformer - Google Patents
Novel pulse transformer Download PDFInfo
- Publication number
- CN201397723Y CN201397723Y CN2009200242895U CN200920024289U CN201397723Y CN 201397723 Y CN201397723 Y CN 201397723Y CN 2009200242895 U CN2009200242895 U CN 2009200242895U CN 200920024289 U CN200920024289 U CN 200920024289U CN 201397723 Y CN201397723 Y CN 201397723Y
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- secondary side
- iron core
- pulse transformer
- output loop
- side output
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Abstract
The utility model discloses a novel pulse transformer which comprises an iron core, a primary side input loop and a secondary side output loop, wherein the iron core adopts a high-oxygen magnetic core; the secondary side output loop is connected in series with at least two groups of damped resistors; and the coil windings of the primary side input loop and the secondary side output loop are overlapped and wound on the iron core. The utility model can realize the synchronous trigging of thyristors, and has the characteristics of safety, reliability, simple trigging circuit and low production cost.
Description
Technical field
The utility model relates to and a kind of a trigger impulse is become the pulse transformer of a plurality of pulses, particularly a kind of can be the pulse transition pulse transformer that is the triggering signal of a plurality of mutual isolation.
Background technology
Thyristor valve is the core of controlled dynamic compensation arrangement in the electric power system, and the trigger angle by the control thyristor can realize the continuous adjusting of reactive power compensation, has strengthened the stability of electric power system.Present thyristor triggers the triggering mode that adopts the corresponding thyristor of a pulse transformer mostly, is difficult to guarantee the synchronism of thyristor triggering, has increased the risk that a plurality of thyristors of same branch road damage because of conducting is inconsistent.And, increased use cost greatly owing to adopt a plurality of pulse transformers.
Summary of the invention
Trigger nonsynchronous problem in order to overcome thyristor, the utility model provides a kind of a trigger impulse has been become the novel pulse transformer of the triggering signal of a plurality of mutual isolation, and its technical scheme of taking is:
This transformer comprises iron core, primary side input circuit and secondary side output loop, iron core adopts high ferrite core, the secondary side output loop is serially connected with damping resistance and is at least two groups, and the coil windings of primary side input circuit and secondary side output loop overlaps and is wound on the iron core.
Pulse transformer adopts high ferrite core, and parameters such as pulse duration that secondary side induces triggering signal, steepness are satisfied in first and second winding overlapping coiling, and seal in damping resistance in output loop, reduce the wave distortion of triggering signal.Because the trigger impulse that adopts same triggering signal to induce, the synchronism that thyristor triggers is guaranteed, improved the fail safe of thyristor, pulse transformer also plays the effect that the insulation of low-voltage control circuit and high pressure major loop, magnetic are isolated, improve the reliability that control loop and system use, therefore the utlity model has characteristics safe and reliable, that circuits for triggering are simple, production cost is low.
Description of drawings
Accompanying drawing is circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described:
As shown in the figure, Pulse Transformer Iron Core 2 adopts high ferrite core, reduces the power loss in the magnetic circuit, reduces the phase distortion of waveform; The coil windings of primary side input circuit 3 and secondary side output loop 6 overlaps and is wound on the iron core 2, has reduced the leakage inductance of pulse transformer, reduces the wave distortion of rising edge of a pulse; Secondary side output loop 6 is at least two groups, and serial connection damping resistance 4 in the loop, has reduced under the trigger impulse towards amplitude.
After the primary side input circuit 3 of pulse transformer is accepted triggering signal, in a plurality of coils of pulse transformer secondary side output loop 6, induce trigger voltage through conversion, these trigger voltages are used for the triggering of a plurality of thyristors of same branch road, can realize the thyristor synchronous triggering.
Claims (1)
1, a kind of novel pulse transformer, comprise iron core (2), primary side input circuit (3) and secondary side output loop (6), it is characterized in that: iron core (2) adopts high ferrite core, secondary side output loop (6) is serially connected with damping resistance (4) and is at least two groups, and the coil windings of primary side input circuit (3) and secondary side output loop (6) overlaps and is wound on the iron core (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200242895U CN201397723Y (en) | 2009-03-27 | 2009-03-27 | Novel pulse transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200242895U CN201397723Y (en) | 2009-03-27 | 2009-03-27 | Novel pulse transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201397723Y true CN201397723Y (en) | 2010-02-03 |
Family
ID=41620250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200242895U Expired - Fee Related CN201397723Y (en) | 2009-03-27 | 2009-03-27 | Novel pulse transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201397723Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104851575A (en) * | 2015-06-01 | 2015-08-19 | 江南大学 | Pulse transformer |
-
2009
- 2009-03-27 CN CN2009200242895U patent/CN201397723Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104851575A (en) * | 2015-06-01 | 2015-08-19 | 江南大学 | Pulse transformer |
| CN104851575B (en) * | 2015-06-01 | 2017-05-31 | 江南大学 | A kind of pulse transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100203 Termination date: 20110327 |