CN206136388U - LED sunlight lamp driving circuit of compatible electronic type, inductance type and alternating current - Google Patents
LED sunlight lamp driving circuit of compatible electronic type, inductance type and alternating current Download PDFInfo
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- CN206136388U CN206136388U CN201621118967.0U CN201621118967U CN206136388U CN 206136388 U CN206136388 U CN 206136388U CN 201621118967 U CN201621118967 U CN 201621118967U CN 206136388 U CN206136388 U CN 206136388U
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Abstract
The utility model provides a LED sunlight lamp driving circuit of compatible electronic type, inductance type and alternating current, include: first rectification filter circuit, its two inputs are connected with L, the N terminal of LED fluorescent lamp respectively, second rectification filter circuit, its two inputs are connected with L1, the N1 terminal of LED fluorescent lamp respectively, the relay switch switching circuit, two inputs of relay correspond with two outputs of first rectification filter circuit respectively and are connected, and two normally open contact correspond with second rectification filter circuit's output respectively and are connected BUCK constant -current drive circuit, its input with two normally open contact of relay connect respectively, and the output connects with LED lamp polyphone, the voltage detection return circuit, an one of which input is connected with the N terminal of LED fluorescent lamp, and another input is connected with the N1 terminal of LED fluorescent lamp.
Description
Technical field
This utility model is related to a kind of drive circuit, more particularly to LED daylight lamp drive circuit.
Background technology
Conventional electronic ballast is adapted to the power supply of fluorescent lamp, and LED power driver is only suitable for the power supply of LED.Electronics
Ballast output for high voltage-small current, and the output of the power supply driver of LED is low-voltage, high-current.
Electric ballast to be referred to and drive electric light source using electronic technology, is allowed to produce the electronic equipment of required illumination.Therewith
Corresponding is inductance type ballast.Modern daylight lamp more and more uses electric ballast, light compact, it might even be possible to by electricity
Sub-ballast and fluorescent tube etc. are integrated, meanwhile, electric ballast can generally have starter function concurrently, so and can save
Single starter.Electric ballast such as can also can pass through to improve power frequency or current wave with more multi-functional
Shape (such as becoming square wave) improves or eliminates the scintillation of daylight lamp；Also by power inverter process daylight lamp can be made
Use DC source.Some shortcomings of traditional inductance type commutator make it be taken by growing ripe electric ballast
Generation.
Therefore, in daylight lamp holder now on the market, situation is extremely complex, has the daylight lamp holder suitable for LED, i.e., directly
The lamp socket of exchange input；Also there is the lamp socket using electric ballast or Inductive ballast.Consumer is difficult to understand own home
In lamp socket be on earth any, LED fluorescent lamp tube is bought back rashly will produce the situation for a little not working or damaging.
Utility model content
Technical problem underlying to be solved in the utility model is to provide a kind of drive circuit of LED daylight lamp, Neng Goujian
The situation that appearance electric ballast, Inductive ballast and alternating current are directly inputted, so that consumer directly inserts LED daylight lamp
To enter be capable of achieving normal point bright.
In order to solve above-mentioned technical problem, this utility model provides the LED of compatible electronic formula, inductance type and alternating current
Daylight lamp drive circuit, it is characterised in that include：
First current rectifying and wave filtering circuit, two input L respectively with LED daylight lamp, N-terminal are connected；
Second current rectifying and wave filtering circuit, two input is connected respectively with L1, N1 terminal of LED daylight lamp；
Relay switch switching circuit, two inputs of the relay respectively with two of the first current rectifying and wave filtering circuit
Outfan correspondence connects, two normally opened contact connections corresponding with the outfan of the second current rectifying and wave filtering circuit respectively；
BUCK constant-current drive circuits, its input is connected respectively with two normally opened contacts of the relay, outfan with
LED series winding connects；
Detecting voltage loop, one input is connected with N-terminal of LED daylight lamp, another input and LED daylight
The N1 terminals connection of lamp；
A filament simulative resistance circuit is also respectively connected between L, N-terminal of the LED daylight lamp, between L1, N1 terminal；
When N, N1 or L of the LED daylight lamp, L1 terminals have input current simultaneously, the detecting voltage loop works are simultaneously
Control the filament simulative resistance circuit work.
In a preferred embodiment：When L, the N-terminal incoming transport electricity of the LED daylight lamp, the first current rectifying and wave filtering circuit
The unidirectional current of output closes the normally opened contact of relay, and unidirectional current gives the LED after BUCK constant-current drive circuit blood pressure lowerings
Lamp statements based on collusion electricity.
In a preferred embodiment：The L terminals of the LED daylight lamp are connected with the outfan of Inductive ballast, N-terminal with
Zero line connects, during L1, N1 short circuit；The unidirectional current of the first current rectifying and wave filtering circuit output closes the normally opened contact of relay, direct current
Electricity gives LED statements based on collusion electricity after BUCK constant-current drive circuit blood pressure lowerings.
In a preferred embodiment：L terminals, N-terminal of the LED daylight lamp respectively with quick-starting direct electric ballast
The connection of two outfans, the unidirectional current of the first current rectifying and wave filtering circuit output closes the normally opened contact of relay, unidirectional current Jing
Cross after BUCK constant-current drive circuit blood pressure lowerings and give LED statements based on collusion electricity.
In a preferred embodiment：L, N, L1, N1 terminal of the LED daylight lamp respectively with pre-heating electronic ballast
Four outfan connections；The unidirectional current of the first current rectifying and wave filtering circuit output closes the normally opened contact of relay, the first rectification filter
Wave circuit, the unidirectional current of the second current rectifying and wave filtering circuit output are acted in collusion to make each other's confessions after BUCK constant-current drive circuit blood pressure lowerings to the LED
Electricity；
The detecting voltage loop works simultaneously control filament simulative resistance circuit work and complete filament simulation.
In a preferred embodiment：The filament analog circuit includes photo-coupler and the resistance R1 being connected in series.
In a preferred embodiment：The detecting voltage loop includes diode D2, D3, D4, D5；The negative electrode of wherein D2 connects
Connect the anode of D3, the plus earth of D2；The negative electrode of D4 connects the anode of D5, the plus earth of D4；The connection end of D21 and D3 is electricity
One input in pressure detecting loop；The connection end of D4 and D5 is another input in detecting voltage loop；
The negative electrode of D3 is connected after being connected with the negative electrode of D5 with the colelctor electrode of an audion Q1；The base stage of audion Q1 and two poles
The anode connection of pipe D1, emitter stage is connected with the negative electrode of D1.
Compared to prior art, the technical solution of the utility model possesses following beneficial effect：
This utility model provides the LED daylight lamp drive circuit of compatible electronic formula, inductance type and alternating current, is operable with
Electric ballast, Inductive ballast and alternating current directly input three kinds of situations.By two rectification circuits respectively to LED daylight lamp
Two ends input carry out rectification, control relay switch, single-ended electrical leakage problems when preventing from installing.Additionally, by there is pre- thermoelectricity
The detecting of sub-ballast output voltage, completes the simulation of filament resistance, completes the compatibility to electric ballast.
Description of the drawings
Fig. 1 is the circuit diagram of utility model preferred embodiment.
Specific embodiment
The technical solution of the utility model is described further below in conjunction with accompanying drawing.
With reference to Fig. 1, the LED daylight lamp drive circuit of compatible electronic formula, inductance type and alternating current, including：
First current rectifying and wave filtering circuit, two input L respectively with LED daylight lamp, N-terminal are connected；
Second current rectifying and wave filtering circuit, two input is connected respectively with L1, N1 terminal of LED daylight lamp；
Relay switch switching circuit, two inputs of the relay respectively with two of the first current rectifying and wave filtering circuit
Outfan correspondence connects, two normally opened contact connections corresponding with the outfan of the second current rectifying and wave filtering circuit respectively；
BUCK constant-current drive circuits, its input is connected respectively with two normally opened contacts of the relay, outfan with
LED series winding connects；
Detecting voltage loop, one input is connected with N-terminal of LED daylight lamp, another input and LED daylight
The N1 terminals connection of lamp；
A filament simulative resistance circuit is also respectively connected between L, N-terminal of the LED daylight lamp, between L1, N1 terminal；
When N, N1 or L of the LED daylight lamp, L1 terminals have input current simultaneously, the detecting voltage loop works are simultaneously
Control the filament simulative resistance circuit work.
In the present embodiment, the filament analog circuit includes photo-coupler and the resistance R1 being connected in series.
The detecting voltage loop includes diode D2, D3, D4, D5；The negative electrode of wherein D2 connects the anode of D3, the sun of D2
Pole is grounded；The negative electrode of D4 connects the anode of D5, the plus earth of D4；The connection end of D21 and D3 is of detecting voltage loop
Input；The connection end of D4 and D5 is another input in detecting voltage loop；
The negative electrode of D3 is connected after being connected with the negative electrode of D5 with the colelctor electrode of an audion Q1；The base stage of audion Q1 and two poles
The anode connection of pipe D1, emitter stage is connected with the negative electrode of D1.
Specific work process is analyzed as follows：
1) when the L of the LED daylight lamp, N-terminal incoming transport electricity, the unidirectional current of the first current rectifying and wave filtering circuit output will be after
The normally opened contact closure of electrical equipment, unidirectional current gives LED statements based on collusion electricity after BUCK constant-current drive circuit blood pressure lowerings.Therefore, exist
Be input into for alternating current when, the LED daylight lamp can be lighted normally.
2) the L terminals of the LED daylight lamp are connected with the outfan of Inductive ballast, and N-terminal is connected with zero line, L1, N1
During short circuit；The unidirectional current of the first current rectifying and wave filtering circuit output closes the normally opened contact of relay, and unidirectional current is through BUCK constant currents
LED statements based on collusion electricity is given after drive circuit blood pressure lowering.Therefore, when LED daylight lamp accesses Inductive ballast, the LED daylight lamp
Can normally light.Now the input of circuit work in 50,60HZ exchange, circuital current less than inductance current limit compared with
Many, Inductive ballast just corresponds to a filtering device, and after DB2, C5, L2, C4 rectifying and wave-filtering, voltage is one to circuit
100th, the SIN wave voltages of 120HZ, by resistance R5, R6's circuit charges to electric capacity C6, when voltage reaches setting value, controls core
Piece U1 starts working, and turns on switching tube Q1, now has electric current by T1, and this electric current which part is powered to LED lamp bead, part
To EC1, EC2 charges, when flowing through resistance R12, when the electric current of R13 reaches setting value, and control chip U1 on-off switching tube Q1, now
T1 is by LED string and EC1, EC2, then flows back to T1 through diode D2, and when current discharge is completed, control chip U1 is by control
Switching tube Q1 conductings processed carry out next cycle, so by a HF switch cycle, constant current output electric current.
3) L terminals, N-terminal of the LED daylight lamp connects respectively with two outfans of quick-starting direct electric ballast
Connect, the unidirectional current of the first current rectifying and wave filtering circuit output closes the normally opened contact of relay, and unidirectional current is through BUCK constant-current driving
LED statements based on collusion electricity is given after circuit blood pressure lowering.Therefore, when LED daylight lamp accesses quick-starting direct electric ballast, the LED
Daylight lamp can be lighted normally.Circuit from 50,60HZ low-frequency currents by after quick action electronic ballast, becoming 30-
The high frequency electric of 100KHZ, circuit after C5, L2, C4 rectifying and wave-filtering, has essentially become the straight of less ripple by DB2
Stream voltage, this voltage becomes constant current output after BUCK loops, drives LED string.
4) L, N, L1, N1 terminal of the LED daylight lamp is connected respectively with four outfans of pre-heating electronic ballast；
The unidirectional current of the first current rectifying and wave filtering circuit output closes the normally opened contact of relay, the first current rectifying and wave filtering circuit, the second rectification
The unidirectional current of filter circuit output gives LED statements based on collusion electricity after BUCK constant-current drive circuit blood pressure lowerings；
Now the detecting voltage loop works and control filament simulative resistance circuit work and complete filament simulation.Voltage
After C3, C9 resistance-capacitance depressurizations, then through D4, D5, D6, D7, C10 rectifying and wave-filtering, then through Q2, the loop of voltage regulation of D8, give
U1A, U2A, L3 power, and complete the detecting of voltage., respectively by correspondence U1B and U2B control simulation filaments, L3 leads to K3 for U1A, U2A
Complete to drive relay.
This utility model is not limited to aforesaid specific embodiment.Above-described embodiment should not be considered as limiting this practicality
New scope.Those skilled in the art can modify and become while aforementioned detailed description is read and understood
Change.Specific protection domain should be defined by claims.
Claims (7)
1. the LED daylight lamp drive circuit of compatible electronic formula, inductance type and alternating current, it is characterised in that include：
First current rectifying and wave filtering circuit, two input L respectively with LED daylight lamp, N-terminal are connected；
Second current rectifying and wave filtering circuit, two input is connected respectively with L1, N1 terminal of LED daylight lamp；
Relay switch switching circuit, two inputs of the relay are exported respectively with two of the first current rectifying and wave filtering circuit
End correspondence connection, two normally opened contact connections corresponding with the outfan of the second current rectifying and wave filtering circuit respectively；
BUCK constant-current drive circuits, its input is connected respectively with two normally opened contacts of the relay, outfan and LED
Series winding connects；
Detecting voltage loop, one input is connected with N-terminal of LED daylight lamp, another input and LED daylight lamp
N1 terminals connect；
A filament simulative resistance circuit is also respectively connected between L, N-terminal of the LED daylight lamp, between L1, N1 terminal；
When N, N1 or L of the LED daylight lamp, L1 terminals have input current simultaneously, the detecting voltage loop works are simultaneously controlled
The filament simulative resistance circuit work.
2. the LED daylight lamp drive circuit of compatible electronic formula according to claim 1, inductance type and alternating current, its feature
It is：When the L of the LED daylight lamp, N-terminal incoming transport electricity, the unidirectional current of the first current rectifying and wave filtering circuit output is by relay
Normally opened contact closure, unidirectional current after BUCK constant-current drive circuit blood pressure lowerings to the LED statements based on collusion electricity.
3. the LED daylight lamp drive circuit of compatible electronic formula according to claim 1, inductance type and alternating current, its feature
It is：The L terminals of the LED daylight lamp are connected with the outfan of Inductive ballast, and N-terminal is connected with zero line, L1, N1 short circuit
When；The unidirectional current of the first current rectifying and wave filtering circuit output closes the normally opened contact of relay, and unidirectional current is through BUCK constant-current driving
LED statements based on collusion electricity is given after circuit blood pressure lowering.
4. the LED daylight lamp drive circuit of compatible electronic formula according to claim 1, inductance type and alternating current, its feature
It is：L terminals, N-terminal of the LED daylight lamp is connected respectively with two outfans of quick-starting direct electric ballast, the
The unidirectional current of one current rectifying and wave filtering circuit output closes the normally opened contact of relay, and unidirectional current drops through BUCK constant-current drive circuits
LED statements based on collusion electricity is given after pressure.
5. the LED daylight lamp drive circuit of compatible electronic formula according to claim 1, inductance type and alternating current, its feature
It is：L, N, L1, N1 terminal of the LED daylight lamp is connected respectively with four outfans of pre-heating electronic ballast；First
The unidirectional current of current rectifying and wave filtering circuit output closes the normally opened contact of relay, the first current rectifying and wave filtering circuit, the second rectifying and wave-filtering
The unidirectional current of circuit output gives LED statements based on collusion electricity after BUCK constant-current drive circuit blood pressure lowerings；
The detecting voltage loop works simultaneously control filament simulative resistance circuit work and complete filament simulation.
6. the LED daylight lamp drive circuit of compatible electronic formula according to claim 1, inductance type and alternating current, its feature
It is：The filament analog circuit includes photo-coupler and the resistance R1 being connected in series.
7. the LED daylight lamp drive circuit of compatible electronic formula according to claim 1, inductance type and alternating current, its feature
It is：The detecting voltage loop includes diode D2, D3, D4, D5；The negative electrode of wherein D2 connects the anode of D3, the anode of D2
Ground connection；The negative electrode of D4 connects the anode of D5, the plus earth of D4；The connection end of D21 and D3 is one of detecting voltage loop defeated
Enter end；The connection end of D4 and D5 is another input in detecting voltage loop；
The negative electrode of D3 is connected after being connected with the negative electrode of D5 with the colelctor electrode of an audion Q1；The base stage of audion Q1 and diode D1
Anode connection, emitter stage is connected with the negative electrode of D1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621118967.0U CN206136388U (en) | 2016-10-13 | 2016-10-13 | LED sunlight lamp driving circuit of compatible electronic type, inductance type and alternating current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621118967.0U CN206136388U (en) | 2016-10-13 | 2016-10-13 | LED sunlight lamp driving circuit of compatible electronic type, inductance type and alternating current |
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| Publication Number | Publication Date |
|---|---|
| CN206136388U true CN206136388U (en) | 2017-04-26 |
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ID=58574036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621118967.0U Active CN206136388U (en) | 2016-10-13 | 2016-10-13 | LED sunlight lamp driving circuit of compatible electronic type, inductance type and alternating current |
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| CN (1) | CN206136388U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106385733A (en) * | 2016-10-13 | 2017-02-08 | 厦门阳光恩耐照明有限公司 | LED fluorescent lamp driving circuit compatible with electronic and inductive and alternating current |
| CN109219187A (en) * | 2018-08-21 | 2019-01-15 | 厦门阳光恩耐照明有限公司 | The LED daylight lamp driving circuit of compatible electronic formula, inductance type and alternating current |
-
2016
- 2016-10-13 CN CN201621118967.0U patent/CN206136388U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106385733A (en) * | 2016-10-13 | 2017-02-08 | 厦门阳光恩耐照明有限公司 | LED fluorescent lamp driving circuit compatible with electronic and inductive and alternating current |
| CN106385733B (en) * | 2016-10-13 | 2018-02-27 | 厦门阳光恩耐照明有限公司 | The LED daylight lamp drive circuit of compatible electronic formula, inductance type and alternating current |
| CN109219187A (en) * | 2018-08-21 | 2019-01-15 | 厦门阳光恩耐照明有限公司 | The LED daylight lamp driving circuit of compatible electronic formula, inductance type and alternating current |
| CN109219187B (en) * | 2018-08-21 | 2024-04-23 | 厦门阳光恩耐照明有限公司 | LED fluorescent lamp driving circuit compatible with electronic, inductive and commercial power |
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