CN204291454U - LED lamp tube power driving circuit and LED lamp tube - Google Patents
LED lamp tube power driving circuit and LED lamp tube Download PDFInfo
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- CN204291454U CN204291454U CN201420706325.7U CN201420706325U CN204291454U CN 204291454 U CN204291454 U CN 204291454U CN 201420706325 U CN201420706325 U CN 201420706325U CN 204291454 U CN204291454 U CN 204291454U
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Abstract
The utility model discloses a kind of LED lamp tube power driving circuit and LED lamp tube, the switching circuit that this LED lamp tube power driving circuit comprises high frequency electric source driver module, low-frequency power driver module and switches both, the output that high frequency electric source driver module drives with low-frequency power is connected LED lamp bar, and input connects power supply by switching circuit.The utility model utilizes switching circuit to switch low-frequency power driver module and high frequency electric source driver module, high frequency electric source driver module can be allowed to be applicable to all electric ballasts, avoid remaining circuit to the interference of drive circuit.
Description
Technical field
The utility model relates to a kind of power driving circuit, particularly relates to a kind of LED lamp tube power driving circuit.
Background technology
Fluorescent lamp is the most frequently used illuminations of office space, shelter, and traditional fluorescent lamp generally adopts fluorescent tube, because of advantages such as LED energy-saving and environmental protection, along with the continuous maturation of LED technology, fluorescent tube gradually substitute by LED lamp tube.Because existing fluorescent lighting fixture is often provided with ballast, its output current is alternating current, and LED needs DC driven, therefore needs the circuit transforming existing light fixture, could realize replacing.
CN 203596948 U discloses a kind of LED drive circuit of compatible electronic ballast, comprising: step-down current-limiting circuit, for carrying out step-down and current limliting to the output of electric ballast, and output AC electricity; High-frequency rectification circuit, for described alternating current is carried out rectification, to export the first direct current; Filter circuit, for carrying out filtering to the first described direct current, and exports to LED; High pressure absorbing circuit, is connected with the input of step-down current-limiting circuit, and this high pressure absorbing circuit comprises: rectification circuit, for the output of electric ballast is changed into the second direct current; Absorbing circuit, the second direct current described in absorption; Switching circuit, for controlling the break-make between described rectification circuit and absorbing circuit; Delay circuit, for the switching circuit described in delays time to control.
The LED lamp tube comprising above-mentioned drive circuit can directly replace the fluorescent lighting fixture with electric ballast, but cannot replace installation inductance type ballast or not install on the light fixture of ballast, has certain limitation.
CN 101925229 A discloses a kind of driving circuit device of LED lamp tube, and it includes a high frequency magnetic core isolating transformer, is parallel to the rectifier bridge of isolating transformer output, is parallel to the high frequency capacitance of rectification bridge output end; The output of described rectifier bridge is parallel to the both positive and negative polarity of high frequency capacitance and LED string; An input of described high frequency magnetic core isolating transformer connects two contact pin of fluorescent tube; Described high frequency magnetic core isolating transformer input is in series with another high frequency capacitance and is parallel to the low frequency rectifier bridge of this high frequency capacitance; The output of described rectifier bridge and the output of low frequency rectifier bridge are parallel to the both positive and negative polarity of high frequency capacitance and LED string simultaneously; An input of described high frequency magnetic core isolating transformer is connected two contact pin of fluorescent tube respectively with an input of another high frequency capacitance; This circuit compatibility is used in high-frequency electronic ballast or low frequency inductance rectifier lamp bracket and is directly installed on electricity network, but it can not the ballast of compatible all models, has the defect that noise jamming is large.
Utility model content
The utility model provides a kind of LED lamp tube power driving circuit, can not be applicable to the problem of the ballast of all models with the drive circuit solving existing compatible civil power and ballast.
A kind of LED lamp tube power driving circuit, the switching circuit comprising high frequency electric source driver module, low-frequency power driver module and both are switched, the output that high frequency electric source driver module drives with low-frequency power is connected LED lamp bar, and input connects power supply by switching circuit.
When replacing existing fluorescent tube by LED lamp tube, some lamp installation has electric ballast or Inductive ballast, or be bypassed after installation ballast and given up, or dismantle, in order to meet the needs of multiple situation, power driving circuit of the present utility model contains low-frequency power driver module and high frequency electric source driver module, when light fixture has electric ballast, then connect high frequency electric source driver module, if installed Inductive ballast, or ballast is disassembled, bypass is given up, then connect low-frequency power driver module, switch and realized by switching circuit.
Described low-frequency power driver module can adopt commercially available electric power driving module, as the SSL2109 of NXP.
Described high frequency electric source driver module can adopt LED drive circuit disclosed in CN 203596948 U.
Switching circuit can adopt common switching device.
The utility model additionally provides a kind of LED lamp tube, and described LED lamp tube comprises described LED lamp tube power driving circuit.
Described LED lamp tube can be 2D fluorescent tube, straight fluorescent tube, annular lamp tube, PLL fluorescent tube or U-shaped fluorescent tube.
Preferred further, described LED lamp tube is straight fluorescent tube, and described high frequency electric source driver module and low-frequency power driver module are located at the two ends of fluorescent tube respectively.
Described LED lamp tube is T8 fluorescent tube.
Two input interfaces of described low-frequency power driver module match one by one with two lamp bases of fluorescent tube first end and are connected, two lamp bases of described high frequency electric source driver module input interface connecting tube second end, another input interface is by two lamp bases of switching circuit connecting tube first end.
Described switching circuit comprises K switch 1 and K switch 2, and two lamp bases of K switch 1 and K switch 2 one end difference connecting tube first end, the other end connects an input interface of high frequency electric source driver module.
Described K switch 1 and K switch 2 are combined to form toggle switch.
Described toggle switch is arranged in the lamp holder of fluorescent tube, and the lamp holder sidewall of fluorescent tube has the opening supplying the shifting block of toggle switch to expose.
Be provided with the collar outside described lamp holder, inside the collar, be provided with the allocating slot matched with described shifting block, be conducive to attractive in appearance and operation.
The utility model utilizes switching circuit to switch low-frequency power driver module and high frequency electric source driver module, high frequency electric source driver module can be allowed to be applicable to all electric ballasts, avoid remaining circuit to the interference of drive circuit.
Accompanying drawing explanation
Fig. 1 is the modular structure schematic diagram of the utility model power driving circuit.
Fig. 2 is the structural representation of the utility model LED lamp tube.
Fig. 3 is the explosive view of the utility model LED lamp tube.
Fig. 4 is the explosive view that the utility model adopts the LED lamp tube of plastic-aluminum lamp holder.
Fig. 5 is the explosive view that the utility model adopts the LED lamp tube of FA8 lamp holder.
Fig. 6 is the explosive view that the utility model adopts the LED lamp tube of R17D lamp holder.
Fig. 7 is the explosive view of the utility model 2D fluorescent tube.
Fig. 8 is the explosive view of the utility model annular lamp tube.
Fig. 9 is the explosive view of the utility model PLL fluorescent tube.
Figure 10 is the explosive view of the U-shaped fluorescent tube of the utility model.
Embodiment
As shown in Figure 1, a kind of LED drive circuit, comprise high frequency electric source driver module, low-frequency power driver module and the switching circuit that they are switched, high frequency electric source driver module can adopt structure disclosed in CN 203596948 U, low-frequency power driver module can adopt commercially available prod, as the SSL2109 of NXP, switching circuit can be made up of regular tap components and parts, when fluorescent tube connects the low-frequency power such as civil power or Inductive ballast, then use low-frequency power driver module, if when connecting the high frequency electric sources such as electric ballast, then use high frequency electric source driver module, switching mainly through switching circuit allows driver module connect corresponding power supply.
As shown in Figure 3, a kind of LED lamp tube comprising described LED drive circuit, comprises PC pipe 10, glass tube 11, the lamp holder at lamp bar 1 in pipe and pipe two ends, 6,7, comprise in PC pipe 10 and have draw-in groove, LED lamp bar 1 is arranged in PC pipe by draw-in groove.
Low-frequency power driver module 2 and high frequency electric source driver module 3 is respectively equipped with in the lamp holder at two ends, wherein two lamp bases of right-hand member, 4 two input interfaces connecting low-frequency power driver module 2 respectively, connect an input interface of high frequency electric source driver module 3 after two lamp bases 5 short circuit of fluorescent tube left end, two lamp bases connecting low-frequency power driver module 2 connect another input interface of high-frequency drive module by switching circuit.
As shown in Figure 2, switching circuit comprises K switch 1 and K switch 2, two lamp bases 4 of K switch 1 and K switch 2 one end connecting tube right-hand member respectively, the other end connect high frequency electric source driver module an input.
As described in Figure 3, K switch 1 and K switch 2 combine and form toggle switch 8, and toggle switch is built in the lamp holder of fluorescent tube left end, and lamp holder sidewall has opening, and the shifting block of toggle switch exposes opening, and for user's operation, gap place is provided with switch panel 9.
When original fluorescent lighting fixture has electric ballast, then allow the work of high frequency electric source driver module, if original fluorescent lighting fixture has Inductive ballast or ballast is removed, damaged or bypass, be then switched to by toggle switch and use low-frequency power driver module.Although this mode needs artificially to judge light fixture situation, simplify circuit, and avoid remaining circuit to the interference of drive circuit, ensure that high frequency drive circuit goes for the electric ballast of all models.
Fig. 4, Fig. 5 and Fig. 6 are the LED lamp tube adopting plastic-aluminum lamp holder, FA8 lamp holder and R17D respectively, and there is the collar 12 at the lamp holder place of left end, be provided with the allocating slot 13 coordinated with toggle switch 8, can reach the object of hiding toggle switch inside the collar, and handled easily.Skidding for avoiding in addition, outside the collar, being provided with anti-skidding raised line.
As shown in Fig. 7 ~ 10, be respectively 2D fluorescent tube, annular lamp tube, PLL fluorescent tube and U-shaped fluorescent tube, its structure and existing structure are substantially similar, difference is to have installed low-frequency power driver module, high frequency electric source driver module and toggle switch, because they have four lamp bases equally, therefore their connected mode can be consistent with accompanying drawing 2, and difference is that corresponding change is made in the position of driver module.
Claims (9)
1. a LED lamp tube power driving circuit, it is characterized in that, the switching circuit comprising high frequency electric source driver module, low-frequency power driver module and both are switched, the output that high frequency electric source driver module drives with low-frequency power is connected LED lamp bar, and input connects power supply by switching circuit.
2. a LED lamp tube, is characterized in that, comprises LED lamp tube power driving circuit according to claim 1.
3. LED lamp tube as claimed in claim 2, is characterized in that, described LED lamp tube is 2D fluorescent tube, straight fluorescent tube, annular lamp tube, PLL fluorescent tube or U-shaped fluorescent tube.
4. LED lamp tube as claimed in claim 3, it is characterized in that, described LED is straight fluorescent tube, and described high frequency electric source driver module and low-frequency power driver module are located at the two ends of fluorescent tube respectively.
5. LED lamp tube as claimed in claim 4, it is characterized in that, two input interfaces of described low-frequency power driver module match one by one with two lamp bases of fluorescent tube first end and are connected, two lamp bases of described high frequency electric source driver module input interface connecting tube second end, another input interface is by two lamp bases of switching circuit connecting tube first end.
6. LED lamp tube as claimed in claim 5, it is characterized in that, described switching circuit comprises K switch 1 and K switch 2, and two lamp bases of K switch 1 and K switch 2 one end difference connecting tube first end, the other end connects an input interface of high frequency electric source driver module.
7. LED lamp tube as claimed in claim 6, it is characterized in that, described K switch 1 and K switch 2 are combined to form toggle switch.
8. LED lamp tube as claimed in claim 7, it is characterized in that, described toggle switch is arranged in the lamp holder of fluorescent tube, and the lamp holder sidewall of fluorescent tube has the opening supplying the shifting block of toggle switch to expose.
9. LED lamp tube as claimed in claim 8, is characterized in that, be provided with the collar outside described lamp holder, be provided with the allocating slot matched with described shifting block inside the collar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420706325.7U CN204291454U (en) | 2014-11-21 | 2014-11-21 | LED lamp tube power driving circuit and LED lamp tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420706325.7U CN204291454U (en) | 2014-11-21 | 2014-11-21 | LED lamp tube power driving circuit and LED lamp tube |
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| CN204291454U true CN204291454U (en) | 2015-04-22 |
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| CN201420706325.7U Active CN204291454U (en) | 2014-11-21 | 2014-11-21 | LED lamp tube power driving circuit and LED lamp tube |
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| CN104470086A (en) * | 2014-11-21 | 2015-03-25 | 浙江晨辉照明有限公司 | LED lamp tube power driving circuit and LED lamp tube |
| CN105636273A (en) * | 2016-02-01 | 2016-06-01 | 深圳市豪恩光电照明股份有限公司 | LED driving circuit compatible with electronic rectifier and mains supply |
| CN107027210A (en) * | 2016-02-01 | 2017-08-08 | 华润矽威科技（上海）有限公司 | A kind of LED control circuit and method |
| CN107734740A (en) * | 2017-09-15 | 2018-02-23 | 深圳实现创新科技有限公司 | Meet the universal both-end LED lamp tube and its module of safety standard |
| US10070498B2 (en) | 2015-04-14 | 2018-09-04 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube lamp with improved compatibility with electrical ballasts |
| US10208898B2 (en) | 2015-04-29 | 2019-02-19 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube lamp with operating modes compatible with electrical ballasts |
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| US10571081B2 (en) | 2015-03-10 | 2020-02-25 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube lamp and driving method therefor |
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| US10070498B2 (en) | 2015-04-14 | 2018-09-04 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube lamp with improved compatibility with electrical ballasts |
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| CN107027210A (en) * | 2016-02-01 | 2017-08-08 | 华润矽威科技（上海）有限公司 | A kind of LED control circuit and method |
| CN105636273B (en) * | 2016-02-01 | 2019-06-07 | 深圳市豪恩智能物联股份有限公司 | A kind of LED drive circuit of compatible electronic rectifier and alternating current |
| CN105636273A (en) * | 2016-02-01 | 2016-06-01 | 深圳市豪恩光电照明股份有限公司 | LED driving circuit compatible with electronic rectifier and mains supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191021 Address after: Xie Tang Morninghope Shangyu District Industrial Park 312369 Zhejiang city of Shaoxing Province Patentee after: CHENHUI GUANGBAO TECHNOLOGY CO., LTD. Address before: Xie Tang Morninghope Shangyu District Industrial Park 312369 Zhejiang city of Shaoxing Province Patentee before: Zhejiang Chenhui Lighting Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Xie Tang Morninghope Shangyu District Industrial Park 312369 Zhejiang city of Shaoxing Province Patentee after: Chenhuangbao Technology Co., Ltd. Address before: Xie Tang Morninghope Shangyu District Industrial Park 312369 Zhejiang city of Shaoxing Province Patentee before: CHENHUI GUANGBAO TECHNOLOGY CO., LTD. |