CN207251959U - A kind of LED lamp tube compatible circuit and LED lamp tube - Google Patents
A kind of LED lamp tube compatible circuit and LED lamp tube Download PDFInfo
- Publication number
- CN207251959U CN207251959U CN201720986245.5U CN201720986245U CN207251959U CN 207251959 U CN207251959 U CN 207251959U CN 201720986245 U CN201720986245 U CN 201720986245U CN 207251959 U CN207251959 U CN 207251959U
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- input terminal
- led lamp
- lamp tube
- rectifier bridge
- led
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Abstract
The utility model discloses a kind of LED lamp tube compatible circuit and LED lamp tube, the LED lamp tube compatible circuit, it includes first input end, the second input terminal, the 3rd input terminal, the 4th input terminal, the first rectifier bridge, the second rectifier bridge, the 3rd rectifier bridge, the first high frequency capacitance, the second high frequency capacitance and LED drive power, the LED lamp tube includes above-mentioned LED lamp tube compatible circuit, and the output terminal of the LED drive power is connected with the input terminal of the LED lamp tube.The utility model can be under compatible electronic ballast and 2 kinds of operating modes of electric main, it is not necessary to which lamp cap is replaced in rewiring, improves the compatibility of product, greatly convenient for users to use, reduces the risk that the incompatible electric ballast of product is brought.The utility model is widely used in lighting technical field as a kind of LED lamp tube compatible circuit and LED lamp tube.
Description
Technical field
It the utility model is related to lighting technical field, more particularly to a kind of LED lamp tube compatible circuit and LED lamp tube.
Background technology
LED light source progressively substitutes original fluorescent lighting product as novel illumination product, in practical applications, a kind of
It is brand-new building and finishing directly employs LED illumination product, it is another then be to have fitted up the old fluorescent lighting being laid out
System.LED illumination product is directly to be driven by electric main, and conventional fluorescent is not directly to be driven by electric main, by
Electric ballast is boosted and voltage is to input driving fluorescent tube from fluorescent tube both ends, and Fig. 1 connects for conventional fluorescent
Schematic diagram, Fig. 2 are the conventional LED lamp tube wiring schematic diagram for being only operable on electric main；Using the illumination production of new common LED
Problems with is faced during product：Need to change circuit, electric ballast is removed, circuit is revised as directly to exchange electric drive.Repair
Relocate a large amount of technical professional electricians of road needs.Modification circuit requires a great deal of time.After changing circuit, original lamp
The safety certification of tool is destroyed, and is not accepted insurance by insurance company.
The product of the compatible electric ballast in part on the market, is only capable of working under electric ballast, cannot work in friendship
Under galvanic electricity state, when electric ballast damages, fluorescent tube can not reuse, and be unfavorable for saving the energy.
Utility model content
In order to solve the above-mentioned technical problem, the purpose of this utility model is to provide a kind of LED lamp tube compatible circuit and LED light
Pipe.
Technical solution is used by the utility model：A kind of LED lamp tube compatible circuit, it includes first input end,
Two input terminals, the 3rd input terminal, the 4th input terminal, the first rectifier bridge, the second rectifier bridge, the 3rd rectifier bridge, the first high frequency capacitance,
Second high frequency capacitance and LED drive power, the first input end, the second input terminal input terminal with the first rectifier respectively
Connection, the 3rd input terminal, input terminal of the 4th input terminal respectively with second rectifier bridge are connected；Second input terminal
It is connected by the first high frequency capacitance with the input terminal of the 3rd rectifier bridge, four input terminal passes through the second high frequency capacitance and institute
State the input terminal connection of the 3rd rectifier bridge；The input terminal of first rectifier bridge, the second rectifier bridge input terminal, the 3rd rectifier bridge are defeated
Enter input terminal of the end respectively with the LED drive power to be connected.
Further, is connected between the input terminal of the first input end, the second input terminal and the rectifier bridge
One fuse, the second fuse.
Further, the LED drive power includes PWM drive modules, the first metal-oxide-semiconductor and transformer, and described first is whole
Flow bridge, the second rectifier bridge, the 3rd rectifier bridge output terminal respectively with the input terminals of the PWM drive modules and the first metal-oxide-semiconductor
Source electrode connects, and the output terminal of the PWM drive modules is connected with the grid of the first metal-oxide-semiconductor, the source electrode of first metal-oxide-semiconductor and change
The input terminal connection of depressor, the output terminal of the PWM drive modules are connected with the input terminal of the transformer.
Further, it further includes filter rectifier, the output of the 3rd rectifier bridge described in the input terminal of the filter circuit
End connection, the output terminal of the filter circuit are connected with the input terminal of the LED drive power.
Further, it further includes anti-jamming circuit, the output of the input terminal of the anti-jamming circuit and the filter circuit
End connection, the output terminal of the anti-jamming circuit are connected with the input terminal of the LED drive power.
Further, the anti-jamming circuit includes zener diode, pull down resistor and electric-controlled switch, two pole of voltage stabilizing
The cathode of pipe is connected with the control pole of the electric-controlled switch, its anode is connected with the positive branch of the filter circuit, under described
One end of pull-up resistor is connected with the control pole of the electric-controlled switch, and the other end is connected with the cathode branch of the filter circuit, institute
The input terminal of electric-controlled switch is stated to be connected with the anode branch of the filter circuit, the output terminal of the electric-controlled switch with it is described
The input terminal connection of LED drive power.
A kind of LED lamp tube, it includes above-mentioned LED lamp tube compatible circuit, the output terminal of the LED drive power with it is described
The input terminal connection of LED lamp tube.
The beneficial effects of the utility model are：The utility model can be under compatible electronic ballast and 2 kinds of works of electric main
Operation mode, it is not necessary to lamp cap is replaced in rewiring, improves the compatibility of product, greatly convenient for users to use,
Reduce the risk that the incompatible electric ballast of product is brought.
Brief description of the drawings
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
Fig. 1 is conventional fluorescent connection diagram；
Fig. 2 is the conventional LED lamp tube wiring schematic diagram for being only operable on electric main；
Fig. 3 is a kind of high-level schematic functional block diagram of LED lamp tube compatible circuit of the utility model；
Fig. 4 is the utility model with a kind of circuit diagram of LED lamp tube compatible circuit in specific embodiment.
Embodiment
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the application can phase
Mutually combination.
As shown in figure 3, a kind of LED lamp tube compatible circuit, it include first input end, the second input terminal, the 3rd input terminal,
4th input terminal, the first rectifier bridge, the second rectifier bridge, the 3rd rectifier bridge, the first high frequency capacitance, the second high frequency capacitance and LED
Driving power, the input terminal of the first input end, the second input terminal respectively with the first rectifier are connected, the 3rd input
End, input terminal of the 4th input terminal respectively with second rectifier bridge are connected；Second input terminal passes through the first high frequency capacitance
It is connected with the input terminal of the 3rd rectifier bridge, four input terminal is defeated by the second high frequency capacitance and the 3rd rectifier bridge
Enter end connection；The input terminal of first rectifier bridge, the second rectifier bridge input terminal, the 3rd rectifier bridge input terminal respectively with it is described
The input terminal connection of LED drive power.It further includes filter rectifier, the 3rd rectification described in the input terminal of the filter circuit
The output terminal connection of bridge, the output terminal of the filter circuit are connected with the input terminal of the LED driving powers.It further includes anti-
Disturb circuit, the input terminal of the anti-jamming circuit is connected with the output terminal of the filter circuit, the anti-jamming circuit it is defeated
Outlet is connected with the input terminal of the LED drive power.
Each circuit is specifically described below：
As shown in figure 4, first input end N is connected by fuse F2 with the input terminal of the first rectifier DB1, the second input
End L into cross fuse F1 be connected with the input terminal of the first rectifier DB1, the 3rd input terminal A, the 4th input terminal B respectively with it is described
The input terminal connection of second rectifier bridge DB2；The second input terminal F1 passes through the first high frequency capacitance C8 and the 3rd rectifier bridge
The input terminal connection of DB3, the input that the 4th input terminal B passes through the second high frequency capacitance C10 and the 3rd rectifier bridge DB3
End connection；The input terminal of the first rectifier bridge DB 1, the second rectifier bridge DB2 input terminals, the 3rd rectifier bridge input terminal DB3 difference
It is connected with the input terminal of the LED drive power.
The LED drive power includes PWM drive modules U2, the first metal-oxide-semiconductor Q1 and transformer L1, first rectification
Bridge DB1, the second rectifier bridge DB2, the 3rd rectifier bridge DB3 output terminal respectively with the input terminal of the PWM drive modules U2 and
The source electrode connection of one MOS pipes, the output terminal of the PWM drive modules U2 are connected with the grid of the first metal-oxide-semiconductor Q3, and described first
The drain electrode of metal-oxide-semiconductor Q3 is connected with the input terminal of transformer L1, and the output terminal of the PWM drive modules U2 is with the transformer L1's
Input terminal connects.
The filter rectifier includes diode D7, capacitance C2, resistance R9, the described in the input terminal of the filter circuit
The output terminal connection of three rectifier bridge DB4, the output terminal of the filter circuit are connected with the input terminal of the LED drive power.
It further includes anti-jamming circuit, and the input terminal of the anti-jamming circuit is connected with the output terminal of the filter circuit,
The output terminal of the anti-jamming circuit is connected with the input terminal of the LED drive power.The anti-jamming circuit includes voltage stabilizing two
(electric-controlled switch includes silicon-controlled, silicon-controlled, triode in the present embodiment by pole pipe D4, pull down resistor R17 and electric-controlled switch Q3
Deng electric-controlled switch device), it is preferred that for metal-oxide-semiconductor, (for convenience of description, hereafter electric-controlled switch Q3 is described as the to the electric-controlled switch Q3
Two mos pipe Q3), the cathode of the zener diode D4 is connected with the grid of the second metal-oxide-semiconductor Q3, its anode and the filtering
The positive branch connection of circuit, one end of the pull down resistor R17 is connected with the grid of the second metal-oxide-semiconductor Q3, the other end and
The direction branch connection of the filter circuit, the drain electrode of the second metal-oxide-semiconductor Q3 are connected with the reverse branch of the filter circuit,
The source electrode of second metal-oxide-semiconductor is connected with the input terminal of the LED drive power.
A kind of LED lamp tube, it includes above-mentioned LED lamp tube compatible circuit, the output terminal of the LED drive power with it is described
The input terminal connection of LED lamp tube.
Operation principle：LED lamp tube described in this patent is the second output terminal L and first input end N-terminal and fluorescent tube by shell
Two pins of shell one end are connected, and the 3rd input terminal A and the 4th input terminal B ends are connected with two pins of the tube housing other end
Connect, the output terminal (+) of LED drive power and (-) are connected with LED lamp panel
When AC power supply, electric main is input to LED driving powers (i.e. from LED lamp tube from the both ends of fluorescent tube:Hand over
The firewire of galvanic electricity is connected with the lamp pin of LED lamp tube one end, and zero curve is connected with the lamp pin of the LED fluorescent tube other ends), alternating voltage one
Voltage VIN of the road after the first rectifier bridge DB1 and the 2nd DB2 rectifications is connected to pwm chip by resistance R11 and R12
U2 bootroms enter normal operating conditions, control the first metal-oxide-semiconductor Q1 enablement and disablements and transformer L1, current-limiting resistance R6,
Filter capacitor C5, the periphery circuit that sustained diode 3 forms carry out decompression constant current conversion, are then connected by LED+ with LED-
To LED lamp panel, the another way of driving LED lamp tube starting alternating currents is connected to the first high frequency capacitance C8 and the second high-frequency electrical at the same time
Hold one end of C10, C8 and C10 selected as high frequency capacitances, have the characteristic that logical high frequency hinders low frequency, since ac frequency is 50/
60Hz, is low-frequency voltage, therefore will not be coupled to rear class circuit by C8 and C10
When be connected to electric ballast power supply when, electric ballast output voltage be more than 25K high frequency voltage, high frequency
Voltage is input to LED drive power (i.e. from LED lamp tube from the both ends of fluorescent tube:The firewire of alternating current and the lamp of LED lamp tube one end
Pin connects, and zero curve is connected with the lamp pin of the LED lamp tube other end), high frequency voltage is connected to the first high frequency all the way after fuse
One end of capacitance C8 and the second high frequency C10, C8 and C10 selected as high frequency capacitances, have the characteristic that logical high frequency hinders low frequency, due to
Electric ballast output is high frequency voltage, this voltage is coupled to the 3rd rectifier bridge DB3 of rear class by C8 and C10, and (DB3 is
It is made of fast recovery diode), pass through resistance R5, R9, C2, the voltage regulation filtering electricity of D7 compositions after the 3rd rectifier bridge DB3 rectifications
Road, then by zener diode D4, diode D2 is connected to the control pole of the second metal-oxide-semiconductor Q3, makes Q3 (Q3 in the conduction state
Can be silicon-controlled, silicon-controlled, the electric-controlled switch such as triode device for electric-controlled switch), resistance R17 is connected to the second metal-oxide-semiconductor Q3
Control pole and output stage, keep the 3rd metal-oxide-semiconductor Q3 is static lower to keep cut-off to prevent interference false triggering, zener diode D4
Using the zener diode of reverse operation, the filter circuit of present segment outputs the voltage for reaching reverse breakdown zener diode D4
Just turn on afterwards, act as the antijamming capability of lifting circuit, to prevent that interference from misreading hair while another way passes through the first rectifier bridge
Voltage VIN (DB1 and DB2 are made of fast recovery diode) after DB1 and the 2nd DB2 rectifications, passes through resistance R11 and R12
Pwm chip U2 is connected to, since VIN is connected to the input terminal of the second metal-oxide-semiconductor Q3 at the same time, and the second metal-oxide-semiconductor Q3 is in and leads
Logical state, therefore pwm chip U2 will not start, the voltage VIN after rectification is connected to LED+ by the second metal-oxide-semiconductor Q3 of conducting
LED lamp panel is connected to, then the anode of rectification is returned to via LED-, lightening LED lamp pipe
Above is the preferable of the utility model is implemented to be illustrated, but the invention is not limited to the reality
Example is applied, those skilled in the art can also make a variety of equivalent changes on the premise of without prejudice to the utility model spirit
Shape or replacement, these equivalent deformations or replacement are all contained in the application claim limited range.
Claims (7)
- A kind of 1. LED lamp tube compatible circuit, it is characterised in that：It include first input end, the second input terminal, the 3rd input terminal, 4th input terminal, the first rectifier bridge, the second rectifier bridge, the 3rd rectifier bridge, the first high frequency capacitance, the second high frequency capacitance and LED Driving power,The input terminal of the first input end, the second input terminal respectively with the first rectifier is connected, the 3rd input terminal, the 4th Input terminal of the input terminal respectively with second rectifier bridge is connected；Second input terminal is connected by the first high frequency capacitance with the input terminal of the 3rd rectifier bridge, and four input terminal leads to The input terminal that the second high frequency capacitance is crossed with the 3rd rectifier bridge is connected；The input terminal of first rectifier bridge, the second rectifier bridge input terminal, the 3rd rectifier bridge input terminal drive with the LED respectively The input terminal connection of power supply.
- A kind of 2. LED lamp tube compatible circuit according to claim 1, it is characterised in that：It is the first input end, second defeated Enter and be connected to the first fuse, the second fuse between end and the input terminal of the rectifier bridge.
- A kind of 3. LED lamp tube compatible circuit according to claim 1, it is characterised in that：The LED drive power includes PWM drive modules, the first metal-oxide-semiconductor and transformer, first rectifier bridge, the second rectifier bridge, the output terminal of the 3rd rectifier bridge The drain electrode with the input terminal and the first metal-oxide-semiconductor of the PWM drive modules is connected respectively, the output terminal of the PWM drive modules with The grid connection of first metal-oxide-semiconductor, the source electrode of first metal-oxide-semiconductor and the input terminal of transformer connect, the PWM drive modules Output terminal is connected with the input terminal of the transformer.
- A kind of 4. LED lamp tube compatible circuit according to claim 1, it is characterised in that：It further includes filter rectifier, The output terminal connection of 3rd rectifier bridge described in the input terminal of the filter circuit, the output terminal of the filter circuit and the LED The input terminal connection of driving power.
- A kind of 5. LED lamp tube compatible circuit according to claim 4, it is characterised in that：It further includes anti-jamming circuit, institute The input terminal for stating anti-jamming circuit is connected with the output terminal of the filter circuit, the output terminal of the anti-jamming circuit with it is described The input terminal connection of LED drive power.
- A kind of 6. LED lamp tube compatible circuit according to claim 5, it is characterised in that：The anti-jamming circuit includes steady Pressure diode, pull down resistor and electric-controlled switch, the cathode of the zener diode are connected with the control pole of the electric-controlled switch, Its anode is connected with the positive branch of the filter circuit, and one end of the pull down resistor and the control pole of the electric-controlled switch connect Connect, the other end is connected with the cathode branch of the filter circuit, input terminal and the filter circuit of the electric-controlled switch Anode branch connects, and the output terminal of the electric-controlled switch is connected with the input terminal of the LED drive power.
- A kind of 7. LED lamp tube, it is characterised in that：It includes any one of the claims 1 to 6 LED lamp tube compatible circuit, described The output terminal of LED drive power is connected with the input terminal of the LED lamp tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720986245.5U CN207251959U (en) | 2017-08-08 | 2017-08-08 | A kind of LED lamp tube compatible circuit and LED lamp tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720986245.5U CN207251959U (en) | 2017-08-08 | 2017-08-08 | A kind of LED lamp tube compatible circuit and LED lamp tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207251959U true CN207251959U (en) | 2018-04-17 |
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ID=61879267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720986245.5U Expired - Fee Related CN207251959U (en) | 2017-08-08 | 2017-08-08 | A kind of LED lamp tube compatible circuit and LED lamp tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207251959U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109587878A (en) * | 2018-11-30 | 2019-04-05 | 绍兴久芯电子科技有限公司 | A kind of A+B class LED daylight lamp circuit of double-width grinding |
| CN110366296A (en) * | 2019-07-29 | 2019-10-22 | 深圳市福瑞新科技有限公司 | Pass through the controller of power line communication, LED lamp and LED control system |
-
2017
- 2017-08-08 CN CN201720986245.5U patent/CN207251959U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109587878A (en) * | 2018-11-30 | 2019-04-05 | 绍兴久芯电子科技有限公司 | A kind of A+B class LED daylight lamp circuit of double-width grinding |
| CN110366296A (en) * | 2019-07-29 | 2019-10-22 | 深圳市福瑞新科技有限公司 | Pass through the controller of power line communication, LED lamp and LED control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210805 Address after: 518000 floor 6, building 1, Changyi industrial plant, No. 1, Lirong Road, Xinshi community, Dalang street, Shenzhen, Guangdong Patentee after: SHENZHEN EVERICH TECHNOLOGY Co.,Ltd. Address before: 518109 room 602, building 1, guole Science Park, Lirong Road, Dalang street, Longhua new area, Shenzhen, Guangdong Patentee before: SHENZHEN FURUI NEW TECHNOLOGY Co.,Ltd. |
|
| 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: 20180417 |