CN2295269Y - Pulse transformer - Google Patents
Pulse transformer Download PDFInfo
- Publication number
- CN2295269Y CN2295269Y CN 97217507 CN97217507U CN2295269Y CN 2295269 Y CN2295269 Y CN 2295269Y CN 97217507 CN97217507 CN 97217507 CN 97217507 U CN97217507 U CN 97217507U CN 2295269 Y CN2295269 Y CN 2295269Y
- Authority
- CN
- China
- Prior art keywords
- pulse transformer
- primary coil
- coil
- turns
- inverter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000004804 winding Methods 0.000 claims abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000011810 insulating material Substances 0.000 claims description 2
- 239000011162 core material Substances 0.000 description 5
- 238000005422 blasting Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
Images
Landscapes
- Coils Or Transformers For Communication (AREA)
Abstract
The utility model relates to a pulse transformer for the matching use of an inverter, which comprises an iron core and a winding. It is characterized by that it is formed from an annular magnetic core, a primary coil and two secondary coils, the ratio of primary coil to secondary coil is 1: 2-8, and the primary coil is only set up in 1-3 turns. Its advantages are non-saturation region, no over-excitation of inverter transistor, high stability and efficiency, wide parameters of magnetic core, high uniformity and long service life.
Description
The utility model relates to a kind of pulse transformer, and it is a kind of for the matching used pulse transformer of semibridge system inverter being described more specifically.
In the prior art, all will enter the magnetic saturation state when working for the matching used pulse transformer of semibridge system inverter, reason be the number of turns of primary coil more than secondary coil, equate with secondary coil at least, and the output current of semibridge system inverter almost all flows through primary coil.In order to reduce the selected core material of leakage field generally all is magnet ring below the Ф 12mm.The pulse transformer of this structure makes the easy starting of oscillation of semi-bridge inversion power supply, and the current amplification factor of inversion triode also can operate as normal less than 5.Its shortcoming is blasting to occur when using the triode of bigger current amplification factor instead, and switching loss is big during operate as normal; Another shortcoming is to magnetic material requirement harshness, and its parameter consistency will be got well, otherwise influences product quality in batch.Be to describe like this to the semi-bridge inversion pulse transformer in claims of Chinese patent " preheating electric ballast " (Granted publication 2141638Y): it is moulded line with copper and wears on 6 millimeters magnet rings of Ф around, secondary N
1And N
2Respectively around 2 circles, elementary N
3Be 8 circles.The above-mentioned phenomenon of this just inevitable appearance.
The purpose of this utility model provides the matching used pulse transformer of a kind of inverter, and both starting of oscillation easily was difficult for making the triode blasting again, and switching loss is little, efficient is high, working stability, good product consistency.
The utility model is achieved in that
A kind of matching used pulse transformer of inverter that supplies comprises iron core and winding, it is characterized in that it by a toroidal core, a primary coil and two secondary coil formations, the ratio of primary and secondary coil is that the number of turns of 1 to 2 to 8, two secondary coil equates.
The number of turns of the primary coil of pulse transformer is only established 1 to 3 circle.
The utility model has the advantages that primary coil lacks 2～8 times than secondary coil, toroidal core is operated in non-saturated region, electric current in the secondary coil reduces in proportion, make triode be difficult for blasting, switching loss is little, working stability, the efficient height, again the parameter of magnetic material is relaxed, consistency of product is good, long working life.
Description of drawings:
Fig. 1 is the utility model pulse transformer structure chart;
Fig. 2 is the winding diagram of the utility model embodiment.
Now in conjunction with the accompanying drawings the utility model is described in further detail.
A kind of for the matching used pulse transformer of semi-bridge inversion power supply, selecting maximum gauge for use is the toroidal core 1 of 10mm, the number of turns of the primary coil 2 of the lead coiling that wraps with insulating material is 1 to 3 circle, and the number of turns of secondary coil 3 and 4 coilings is 2 to 8 times of primary coil.The number of turns of two secondary loops equates.The winding diagram of this pulse transformer shown in the accompanying drawing 2 in the semibridge system inverter, inversion triode 5 and 6 is connected on the power supply supply side, and an end of load 7 is connected on the tie point of triode 5 and 6 by elementary winding 2, and the other end is connected on a supply side of power supply.Secondary wire Fig. 3 is in parallel with the input of triode 5, and secondary coil 4 is in parallel with the input of triode 6.Round dot is depicted as the end of the same name of three coils.
The selected toroidal core material of embodiment can both be suitable for from R1K～R7K, and induction factor, initial permeability and saturation flux density variation ± 50% do not influence the qualification rate of product yet.Triode 5 and 6 temperature rise are below 15 ℃.Make electric ballast with the semi-bridge inversion power supply that above-mentioned pulse transformer is made, reliable operation, long service life, efficient improves 5～10%.
Claims (3)
1, a kind ofly comprises iron core and winding, it is characterized in that constituting that the ratio of primary and secondary coil is that the number of turns of 1 to 2 to 8, two secondary coil is equal by a toroidal core, primary coil and two secondary coils for inverter matching used pulse transformer.
2, pulse transformer according to claim 1, it is characterized in that said primary coil only establish 1 to 3 the circle.
3, pulse transformer according to claim 1 and 2, the maximum gauge that it is characterized in that said toroidal core is 10mm, coil is all wrapped by insulating material.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97217507 CN2295269Y (en) | 1997-05-07 | 1997-05-07 | Pulse transformer |
| PCT/CN1997/000101 WO1998045873A1 (en) | 1997-04-04 | 1997-10-13 | A high power compact fluorescent lamp |
| AU46975/97A AU4697597A (en) | 1997-04-04 | 1997-10-13 | A high power compact fluorescent lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97217507 CN2295269Y (en) | 1997-05-07 | 1997-05-07 | Pulse transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2295269Y true CN2295269Y (en) | 1998-10-21 |
Family
ID=33934055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97217507 Expired - Fee Related CN2295269Y (en) | 1997-04-04 | 1997-05-07 | Pulse transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2295269Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968989A (en) * | 2010-09-19 | 2011-02-09 | 广州智光电气股份有限公司 | High power pulse transformer |
| CN101996738A (en) * | 2009-08-14 | 2011-03-30 | 凤凰通讯两合有限公司 | Pulse transformer |
| CN107424811A (en) * | 2017-07-28 | 2017-12-01 | 张家港市华为电子有限公司 | Toroidal transformer, charger diode full-wave rectifying circuit and charger |
-
1997
- 1997-05-07 CN CN 97217507 patent/CN2295269Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101996738A (en) * | 2009-08-14 | 2011-03-30 | 凤凰通讯两合有限公司 | Pulse transformer |
| CN101968989A (en) * | 2010-09-19 | 2011-02-09 | 广州智光电气股份有限公司 | High power pulse transformer |
| CN107424811A (en) * | 2017-07-28 | 2017-12-01 | 张家港市华为电子有限公司 | Toroidal transformer, charger diode full-wave rectifying circuit and charger |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20020079863A1 (en) | Non-contact charger | |
| CN105186720B (en) | A kind of transmitting coil structure and apply its radio energy transmitting terminal | |
| JPS645340A (en) | Rotating electric machine | |
| CN2295269Y (en) | Pulse transformer | |
| CN111627648A (en) | Choke coil and manufacturing method thereof | |
| CN209544103U (en) | A kind of inductor suitable for high current | |
| CN101752072A (en) | High-power medium-frequency transformer | |
| CN202796401U (en) | High frequency switching power supply transformer | |
| CN2465290Y (en) | High-efficient high and intermediate frequency transformer | |
| CN205451995U (en) | Nanocrystalline high frequency single phase transformer | |
| CN100498992C (en) | Single phase AC step transformer | |
| CN2359789Y (en) | Magnetic voltage regulator with magnetic shunt | |
| CN215772922U (en) | Multi-output power supply adopting matrix transformer | |
| CN102063999A (en) | Symmetrically parallel induction coil applied to electromagnetic equipment | |
| CN218384759U (en) | Magnetic combined inductor | |
| CN203218071U (en) | Energy-saving transformer employing stereo wound core | |
| KR200291936Y1 (en) | Transformer Core of Inverter Type Microwave Oven | |
| CN107888169B (en) | Pulse current booster, pulse current generating device and preparation method thereof | |
| CN2098983U (en) | Short magnetic circuit shell type and magnetic shunt type transformer for electric welder | |
| CN115691962A (en) | Constant magnetic bias differential mode inductor and method for manufacturing same | |
| CN2261664Y (en) | Main transformer for conversion welder | |
| CN2044747U (en) | Current regulating ac power supply with controllable amplitude modulation | |
| KR100523089B1 (en) | Transformer Core of Inverter Type Microwave Oven | |
| WO2024040274A1 (en) | Shell-type transformer magnetic core | |
| CN2125872U (en) | Monophase type adjustable transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: ZHEJIANG YANGGUANG GROUP CORP., LTD. TO: ZHEJIANG YANKON GROUP CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Yangguang Group Co., Ltd., Zhejiang Patentee before: Yangguang Group Co., Ltd., Zhejiang Prov. |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |