CN209402792U - A kind of one drag two LED drive power - Google Patents
A kind of one drag two LED drive power Download PDFInfo
- Publication number
- CN209402792U CN209402792U CN201822102057.9U CN201822102057U CN209402792U CN 209402792 U CN209402792 U CN 209402792U CN 201822102057 U CN201822102057 U CN 201822102057U CN 209402792 U CN209402792 U CN 209402792U
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- Prior art keywords
- foot
- resistance
- capacitor
- filter
- connect
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses a kind of one drag two LED drive powers, including rectifier bridge stack DB1, 1 foot of the rectifier bridge stack DB1 is connect with power supply N-terminal, 3 feet of the rectifier bridge stack DB1 are connect with the end power supply L, the other end of the rectifier bridge stack DB1 is connect with first filter, the first filter includes capacitor C1, resistance R1 and resistance R2, the capacitor C2 connects with resistance R1 and resistance R2, the side of the first filter is equipped with capacitor C1, and capacitor C1 connect with the first filter it is parallel with one another, the first filter is connected with HA5836D integrated circuit board, the HA5836D integrated circuit board is equipped with seven pins, respectively GND foot, RADJ foot, NC foot, VDD foot, first DRN foot, 2nd DRN foot With ISEN foot, the cathode of GND the foot connection and the capacitor C2 is electrically connected between the RADJ foot and NC foot by resistance R3, high-efficient, light efficiency is high, and whole modulated structure is simple, is easy assembly, and whole lamp component is few, assembly is simple, at low cost, and first-pass yield is high, and bad probability is low.
Description
Technical field
The utility model relates to technical field of lighting fixtures, specially a kind of one drag two LED drive power.
Background technique
LED (Light Emitting Diode) bulb lamp, is being increasingly used in the illumination of various occasions.It opens
Issue high-efficient, high-power, low-voltage can start, and assembling is simple, and cheap, the stable non-isolated bulb lamp of quality is put on
Schedule, for this purpose, proposing a kind of one drag two LED drive power.
Utility model content
The purpose of this utility model is to provide a kind of one drag two LED drive powers, to solve to mention in above-mentioned background technique
Out the problem of.
To achieve the above object, the utility model provides the following technical solutions: a kind of one drag two LED drive power, including
Rectifier bridge stack DB1,1 foot of the rectifier bridge stack DB1 are connect with power supply N-terminal, and 3 feet of the rectifier bridge stack DB1 and the end power supply L connect
Connect, the other end of the rectifier bridge stack DB1 is connect with first filter, the first filter include capacitor C1, resistance R1 and
Resistance R2, the capacitor C2 connect with resistance R1 and resistance R2, and the side of the first filter is equipped with capacitor C1, and capacitor C1
It is connect with the first filter parallel with one another, the first filter is connected with HA5836D integrated circuit board, described
HA5836D integrated circuit board is equipped with seven pins, respectively GND foot, RADJ foot, NC foot, VDD foot, the first DRN foot, second
DRN foot and ISEN foot, the cathode of GND the foot connection and the capacitor C2, pass through resistance R3 between the RADJ foot and NC foot
Be electrically connected, the VDD foot connect with the resistance R2 and capacitor C2 respectively, the first DRN foot and the 2nd DRN foot respectively with
Inductance L1 is connected with diode D1, and inductance L1 is connected with the other end of diode D1 by capacitor C3, the ISEN foot connection
There are resistance R4 and resistance R5 parallel with one another；
The other end of the rectifier bridge stack DB1 is also connect with second filter, the second filter include capacitor C1-1,
Resistance R1-1 and resistance R2-1, the capacitor C2-1 connect with resistance R1-1 and resistance R2-1, the side of the second filter
Equipped with capacitor C1-1, and capacitor C1-1 connect parallel with one another with the second filter, and the second filter is connected with
HA5836D integrated circuit board, the HA5836D integrated circuit board are equipped with seven pins, respectively GND foot, RADJ foot, NC
Foot, VDD foot, the first DRN foot, the 2nd DRN foot and ISEN foot, the cathode of GND the foot connection and the capacitor C2-1 are described
It is electrically connected between RADJ foot and NC foot by resistance R3-1, the VDD foot connects with the resistance R2-1 and capacitor C2-1 respectively
It connects, the first DRN foot and the 2nd DRN foot are connect with inductance L1 and diode D1-1 respectively, and inductance L1-1 and diode D1-
1 other end is connected by capacitor C3-1, and the ISEN foot is connected with resistance R4-1 and resistance R5-1 parallel with one another.
Preferably, 4 feet of the rectifier bridge stack DB1, capacitor C1, C2, C2-1, C3, C3-1 and resistance R4, R5, R4-1,
R5-1 is grounded.
Preferably, the inside of the HA5836D integrated circuit board by voltage regulator, programmable chip, open circuit potential device,
Overvoltage protector, control system, local equal potential connection device and sampling detector composition, the voltage regulator and programmable core
Piece is connected, and the local equal potential connection device is connected with sampling detector, the voltage regulator, programmable chip, open circuit
Potentiometer, overvoltage protector, local equal potential connection device and sampling detector are connected with the control system.
Preferably, the VDD foot is electrically connected with voltage regulator, and the GND foot ground connection, the RADJ foot and over-voltage are protected
Device connection is protected, the ISEN foot and sampling detector are electrically connected, and the DRN foot is electrical by transistor and the control system
Connection.
Preferably, the one drag two LED drive power includes overcurrent protective switch, one end of the overcurrent protective switch with
The connection of the end power supply L, the other end of the overcurrent protective switch are connect with the end L of rectifier bridge stack DB1.
Preferably, the overcurrent protective switch is fuse F1/PTC thermistor.
Compared with prior art, the utility model has the beneficial effects that
1) high-efficient, light efficiency is high.Two groups of LED lamp panels usually need two groups of power drives.This circuit is this needs two
A bridge heap rectification and two filter circuits synthesize a bridge heap rectification and a filter circuit, and loss in this way reduces, and use simultaneously
HA5836D this low-power consumption, high efficiency integrated circuit.So that whole lamp efficiency improves, meanwhile, light efficiency also improves.
2) whole modulated structure is simple, is easy assembly.Whole lamp only one piece of power panel (and can be stuck on lamp housing), one piece of LED
Lamp plate, such high-power bulb modulated structure are very simple.Power input line only has both threads, and power panel is output to LED light printed line
Only 3 lines (two LED drivings, output line are generally 4 lines), assemble up just be easy in this way.
3) whole lamp component is few, and assembly is simple, at low cost, and first-pass yield is high, and bad probability is low.Since this bulb lamp circuit is a lot of
Component uses and is combined into one (for example, bridge heap rectification circuit, filter circuit, imput output circuit)；In this way, component just subtracts
Few, route board size reduces, and cost just is substantially reduced.Due to the reduction of component, in addition structure is simple, so that whole lamp
First-pass yield it is high, bad probability is low.
Detailed description of the invention
Fig. 1 is the circuit diagram of the utility model；
Fig. 2 is the lamp plate line map of the utility model；
Fig. 3 is the line principle frame diagram of the utility model；
Fig. 4 is the integrated circuit board internal functional block diagram of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Embodiment
Fig. 1-4 is please referred to, the utility model provides a kind of technical solution: a kind of one drag two LED drive power, including rectification
Bridge heap DB1,1 foot of the rectifier bridge stack DB1 are connect with power supply N-terminal, and 3 feet of the rectifier bridge stack DB1 are connect with the end power supply L,
The other end of the rectifier bridge stack DB1 is connect with first filter, and the first filter includes capacitor C1, resistance R1 and resistance
R2, the capacitor C2 connect with resistance R1 and resistance R2, and the side of the first filter is equipped with capacitor C1, and capacitor C1 and institute
State first filter connection it is parallel with one another, the first filter is connected with HA5836D integrated circuit board, described
HA5836D integrated circuit board is equipped with seven pins, respectively GND foot, RADJ foot, NC foot, VDD foot, the first DRN foot, second
DRN foot and ISEN foot, the cathode of GND the foot connection and the capacitor C2, pass through resistance R3 between the RADJ foot and NC foot
Be electrically connected, the VDD foot connect with the resistance R2 and capacitor C2 respectively, the first DRN foot and the 2nd DRN foot respectively with
Inductance L1 is connected with diode D1, and inductance L1 is connected with the other end of diode D1 by capacitor C3, the ISEN foot connection
There are resistance R4 and resistance R5 parallel with one another；
The other end of the rectifier bridge stack DB1 is also connect with second filter, the second filter include capacitor C1-1,
Resistance R1-1 and resistance R2-1, the capacitor C2-1 connect with resistance R1-1 and resistance R2-1, the side of the second filter
Equipped with capacitor C1-1, and capacitor C1-1 connect parallel with one another with the second filter, and the second filter is connected with
HA5836D integrated circuit board, the HA5836D integrated circuit board are equipped with seven pins, respectively GND foot, RADJ foot, NC
Foot, VDD foot, the first DRN foot, the 2nd DRN foot and ISEN foot, the cathode of GND the foot connection and the capacitor C2-1 are described
It is electrically connected between RADJ foot and NC foot by resistance R3-1, the VDD foot connects with the resistance R2-1 and capacitor C2-1 respectively
It connects, the first DRN foot and the 2nd DRN foot are connect with inductance L1 and diode D1-1 respectively, and inductance L1-1 and diode D1-
1 other end is connected by capacitor C3-1, and the ISEN foot is connected with resistance R4-1 and resistance R5-1 parallel with one another.
In the present embodiment, specifically, 4 feet of the rectifier bridge stack DB1, capacitor C1, C2, C2-1, C3, C3-1 and resistance
R4, R5, R4-1, R5-1 are grounded.
In the present embodiment, specifically, the inside of the HA5836D integrated circuit board by voltage regulator, programmable chip,
Open circuit potential device, overvoltage protector, control system, local equal potential connection device and sampling detector composition, the voltage are adjusted
Device is connected with programmable chip, and the local equal potential connection device is connected with sampling detector, and the voltage regulator can be compiled
Journey chip, open circuit potential device, overvoltage protector, local equal potential connection device and sampling detector are connected with the control system
It connects.
In the present embodiment, specifically, the VDD foot is electrically connected with voltage regulator, the GND foot ground connection is described
RADJ foot is connect with overvoltage protector, and the ISEN foot and sampling detector are electrically connected, and the DRN foot passes through transistor and institute
State control system electric connection.
In the present embodiment, specifically, the one drag two LED drive power includes overcurrent protective switch, the overcurrent protection
One end of switch is connect with the end power supply L, and the other end of the overcurrent protective switch is connect with the end L of rectifier bridge stack DB1.
In the present embodiment, specifically, the overcurrent protective switch is fuse F1/PTC thermistor；
In the present embodiment, rectifier bridge stack DB1 forms a full-wave rectification, and alternating current is become high voltage direct current；Resistance R1, R2,
R1-1, R2-1 are to give integrated circuit U1 (HA5836D), and the 4 feet power supply of U1-1 (HA5836D) selects 300 kilohms, 1/4W；Resistance
R3, R3-1 are adjustment open-circuit voltage resistance, are shielded to lamp bead, this circuit choosing value is 120 kilohms, 1/8W；Resistance R4,
R5, R4-1, R5-1 are adjustment LED lamp bead electric current, respectively 1.4 ohm of 1/4W, 2.4 ohm of 1/4W, 1.4 ohm of 1/4W, 2.4 Europe
Nurse 1/4W；LED1-LED34 is first group of lamp bead, and LED35-LED68 is second group of lamp bead, is welded on lamp plate；Inductance L1, electricity
Sense L1-1 plays the role of the choked flow to exchange, and there are also play corrective action to switching frequency；Capacitor C1, C2, C2-1 in circuit,
C3, C3-1 are filter action.
Working principle or structural principle, in use, current trend is in alternating current positive half-wave: N line is through in bridge heap DB1
One diode rectification in face obtains positive supply VDD1, tetra- tunnel VDD1 power supply Bing Fen, and two-way passes through R1 respectively, and R2, C2 is to U1
(HA5836D), by R1-1, R2-1, C2-1 are charged and are powered to U1-1 (HA5836D) and passed through, so that U1, U1-1 shake
Come.In addition two-way supplies electricity to the use of two groups of LED illuminations on lamp plate respectively.It is VDD1 to LD+ to first groups 2 and 17 cluster of lamps, ornamental pearls all the way
To LD1- to GND1,5,6 feet (drain electrode of metal-oxide-semiconductor) of U1 (HA5836D) are entered after L1 choked flow, using U1
(HA5836D) internal metal-oxide-semiconductor is exported in 7 feet (source electrode of metal-oxide-semiconductor) of U1 (HA5836D), through R4, two resistance adjustment electric current of R5
To GND (ground), GND (ground) reaches L line through another diode rectification inside bridge heap DB1.Another way is VDD1 to LD+ to
Two group 2 and 17 cluster of lamps, ornamental pearl lamp beads enter 5, the 6 foot (metal-oxide-semiconductors of U1-1 (HA5836D) to LD2- to GND2 after L1-1 choked flow
Drain electrode), using the internal metal-oxide-semiconductor of U1-1 (HA5836D), exported in 7 feet (source electrode of metal-oxide-semiconductor) of U1-1 (HA5836D), warp
Two resistance adjustment electric current of R4-1, R5-1 is to GND (ground), and GND (ground) is through another diode rectification arrival L inside bridge heap DB1
Line.Thus constitute a positive half cycle current circuit.
In the negative half-wave of alternating current, current trend is: L line obtains positive supply through a diode rectification inside bridge heap DB1
Tetra- tunnel VDD1, VDD1 power supply Bing Fen, two-way pass through R1 respectively, and R2, C2 are to U1 (HA5836D), by R1-1, R2-1, C2-1 pairs
U1-1 (HA5836D), which is charged and powered, to pass through, so that U1, U1-1 concussion are got up.In addition two-way supplies electricity on lamp plate respectively
Two groups of LED illuminations are used.It is VDD1 to LD+ to first groups 2 and 17 cluster of lamps, ornamental pearl lamp beads all the way to LD1- to GND1, it is laggard through L1 choked flow
Enter 5,6 feet (drain electrode of metal-oxide-semiconductor) to U1 (HA5836D), using the internal metal-oxide-semiconductor of U1 (HA5836D), at U1 (HA5836D)
7 feet (source electrode of metal-oxide-semiconductor) output, through R4, two resistance adjustment electric current of R5 to GND (ground), GND (ground) through bridge heap DB1 inside
Another diode rectification reaches N line.Another way is VDD1 to LD+ to second groups 2 and 17 cluster of lamps, ornamental pearl lamp beads to LD2- to GND2,
5,6 feet (drain electrode of metal-oxide-semiconductor) that U1-1 (HA5836D) is entered after L1-1 choked flow, it is internal using U1-1 (HA5836D)
Metal-oxide-semiconductor is exported in 7 feet (source electrode of metal-oxide-semiconductor) of U1-1 (HA5836D), through R4-1, two resistance adjustment electric current of R5-1 to GND
(ground), GND (ground) reach N line through another diode rectification inside bridge heap DB1.Thus constitute a negative half-cycle electricity
Flow back to road, wherein
1) isolation circuit, isolation circuit are exactly output with the distinct circuit of input terminal transformer.General transformer
There are two and more than two winding.
2) non-isolated circuit, non-isolated circuit be exactly export do not have with input terminal it is completely separable, have it is total anode or altogether cathode
Circuit.Only one winding of general transformer.
3) one drag two circuit is exactly a driving power, band two paths of LED lamp plate circuit.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of one drag two LED drive power, including rectifier bridge stack DB1, it is characterised in that: 1 foot of the rectifier bridge stack DB1 with
The connection of power supply N-terminal, 3 feet of the rectifier bridge stack DB1 are connect with the end power supply L, the other end of the rectifier bridge stack DB1 and the first filter
The connection of wave device, the first filter include capacitor C1, resistance R1 and resistance R2, the capacitor C2 and resistance R1 and resistance R2 string
Connection, the side of the first filter are equipped with capacitor C1, and capacitor C1 connect with the first filter it is parallel with one another, described the
One filter is connected with HA5836D integrated circuit board, and the HA5836D integrated circuit board is equipped with seven pins, respectively
For GND foot, RADJ foot, NC foot, VDD foot, the first DRN foot, the 2nd DRN foot and ISEN foot, the GND foot connection and the capacitor
The cathode of C2 is electrically connected between the RADJ foot and NC foot by resistance R3, the VDD foot respectively with the resistance R2 and electricity
Hold C2 connection, the first DRN foot and the 2nd DRN foot are connect with inductance L1 and diode D1 respectively, and inductance L1 and diode
The other end of D1 is connected by capacitor C3, and the ISEN foot is connected with resistance R4 and resistance R5 parallel with one another；
The other end of the rectifier bridge stack DB1 is also connect with second filter, and the second filter includes capacitor C1-1, resistance
R1-1 and resistance R2-1, the capacitor C2-1 connect with resistance R1-1 and resistance R2-1, and the side of the second filter is equipped with
Capacitor C1-1, and capacitor C1-1 connect parallel with one another with the second filter, the second filter is connected with
HA5836D integrated circuit board, the HA5836D integrated circuit board are equipped with seven pins, respectively GND foot, RADJ foot, NC
Foot, VDD foot, the first DRN foot, the 2nd DRN foot and ISEN foot, the cathode of GND the foot connection and the capacitor C2-1 are described
It is electrically connected between RADJ foot and NC foot by resistance R3-1, the VDD foot connects with the resistance R2-1 and capacitor C2-1 respectively
It connects, the first DRN foot and the 2nd DRN foot are connect with inductance L1 and diode D1-1 respectively, and inductance L1-1 and diode D1-
1 other end is connected by capacitor C3-1, and the ISEN foot is connected with resistance R4-1 and resistance R5-1 parallel with one another.
2. a kind of one drag two LED drive power according to claim 1, it is characterised in that: the 4 of the rectifier bridge stack DB1
Foot, capacitor C1, C2, C2-1, C3, C3-1 and resistance R4, R5, R4-1, R5-1 are grounded.
3. a kind of one drag two LED drive power according to claim 1, it is characterised in that: the HA5836D integrated circuit
The inside of plate is by voltage regulator, programmable chip, open circuit potential device, overvoltage protector, control system, local equal potential connection
Device and sampling detector composition, the voltage regulator is connected with programmable chip, the local equal potential connection device with adopt
The connection of sample detector, the voltage regulator, programmable chip, open circuit potential device, overvoltage protector, local equal potential connection device
It is connected with the control system with sampling detector.
4. a kind of one drag two LED drive power according to claim 3, it is characterised in that: the VDD foot is electrically connected with
Voltage regulator, the GND foot ground connection, the RADJ foot are connect with overvoltage protector, the ISEN foot and sampling detector electricity
Property connection, the DRN foot is electrically connected by transistor and the control system.
5. a kind of one drag two LED drive power according to claim 1, it is characterised in that: the one drag two LED driving electricity
Source includes overcurrent protective switch, and one end of the overcurrent protective switch is connect with the end power supply L, the overcurrent protective switch it is another
End is connect with the end L of rectifier bridge stack DB1.
6. a kind of one drag two LED drive power according to claim 5, it is characterised in that: the overcurrent protective switch is
Fuse F1/PTC thermistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822102057.9U CN209402792U (en) | 2018-12-14 | 2018-12-14 | A kind of one drag two LED drive power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822102057.9U CN209402792U (en) | 2018-12-14 | 2018-12-14 | A kind of one drag two LED drive power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209402792U true CN209402792U (en) | 2019-09-17 |
Family
ID=67894731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822102057.9U Expired - Fee Related CN209402792U (en) | 2018-12-14 | 2018-12-14 | A kind of one drag two LED drive power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209402792U (en) |
-
2018
- 2018-12-14 CN CN201822102057.9U patent/CN209402792U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190917 Termination date: 20201214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |