CN109121260A - The positive and negative low-loss LED lamp driving circuit connect - Google Patents
The positive and negative low-loss LED lamp driving circuit connect Download PDFInfo
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- CN109121260A CN109121260A CN201811257186.3A CN201811257186A CN109121260A CN 109121260 A CN109121260 A CN 109121260A CN 201811257186 A CN201811257186 A CN 201811257186A CN 109121260 A CN109121260 A CN 109121260A
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- effect tube
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- 230000005669 field effect Effects 0.000 claims abstract description 145
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
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Abstract
A kind of positive and negative low-loss LED lamp driving circuit connect, including p-type field-effect tube Q1, p-type field-effect tube Q2, N-type field-effect tube Q3, N-type field-effect tube Q4 and at least one light emitting diode and at least one resistance；First DC power supply terminal is connect with the drain electrode of field-effect tube Q1 and field-effect tube Q3, is connect with the grid of field-effect tube Q2 and field-effect tube Q4；Second DC power supply terminal is connect with the drain electrode of field-effect tube Q2 and field-effect tube Q4, is connect with the grid of field-effect tube Q1 and field-effect tube Q3；Field-effect tube Q1 is connected with the source electrode of field-effect tube Q2；Field-effect tube Q3 is connected with the source electrode of field-effect tube Q4；Light emitting diode and resistance are connected between the source electrode of field-effect tube Q1 and the source electrode of field-effect tube Q3.In this way, no matter power supply, which just connects or is reversely connected, to work normally, overall losses are smaller, and calorific value is small, more reliably.
Description
Technical field
The present invention relates to electric lighting technical field, especially a kind of positive and negative low-loss LED lamp driving circuit connect.
Background technique
Existing LED light needs to distinguish the positive and negative anodes of power supply when accessing power supply, and reversed meeting causes LED light failure
Or burn, in addition the loss of the electronic component in existing LED light is larger, working efficiency is lower, calorific value is larger, temperature compared with
It is high.
Summary of the invention
In view of this, the present invention provides it is a kind of no matter power supply just connect or be reversely connected can work normally and be lost it is small,
The positive and negative low-loss LED lamp driving circuit connect that work efficiency is high, calorific value is small, temperature is low, to solve the above problems.
A kind of positive and negative low-loss LED lamp driving circuit connect, is connected to the first DC power supply terminal and the second direct current
Between source, including p-type field-effect tube Q1, p-type field-effect tube Q2, N-type field-effect tube Q3, N-type field-effect tube Q4 and at least one
A light emitting diode and at least one resistance；The drain electrode of first DC power supply terminal and p-type field-effect tube Q1 and N-type field-effect tube Q3
Connection, also connect with the grid of p-type field-effect tube Q2 and N-type field-effect tube Q4；Second DC power supply terminal and p-type field-effect tube Q2
And the drain electrode connection of N-type field-effect tube Q4, also it is connect with the grid of p-type field-effect tube Q1 and N-type field-effect tube Q3；P-type field effect
Should the source electrode of pipe Q1 connect with the source electrode of p-type field-effect tube Q2；The source electrode of N-type field-effect tube Q3 and the source of N-type field-effect tube Q4
Pole connection；The anode of light emitting diode is connect with the source electrode of the source electrode of p-type field-effect tube Q1 or p-type field-effect tube Q2, and luminous two
The cathode of pole pipe is connect by resistance with the source electrode of the source electrode of N-type field-effect tube Q3 or N-type field-effect tube Q4.
Compared with prior art, the positive and negative low-loss LED lamp driving circuit connect of the invention is connected to the first direct current
Between power end and the second DC power supply terminal, including p-type field-effect tube Q1, p-type field-effect tube Q2, N-type field-effect tube Q3, N-type
Field-effect tube Q4 and at least one light emitting diode and at least one resistance；First DC power supply terminal and p-type field-effect tube Q1 and N
The drain electrode of type field-effect tube Q3 connects, and also connect with the grid of p-type field-effect tube Q2 and N-type field-effect tube Q4；Second direct current
Source is connect with the drain electrode of p-type field-effect tube Q2 and N-type field-effect tube Q4, also with p-type field-effect tube Q1 and N-type field-effect tube Q3
Grid connection；The source electrode of p-type field-effect tube Q1 is connect with the source electrode of p-type field-effect tube Q2；The source electrode of N-type field-effect tube Q3 with
The source electrode of N-type field-effect tube Q4 connects；The anode of light emitting diode and the source electrode of p-type field-effect tube Q1 or p-type field-effect tube Q2
Source electrode connection, the cathode of light emitting diode passes through resistance and the source electrode of N-type field-effect tube Q3 or the source electrode of N-type field-effect tube Q4
Connection.In this way, no matter power supply, which just connects or is reversely connected, to work normally, it is whole since the conduction loss of field-effect tube is minimum
Loss is smaller, and calorific value is small, and compared to the rectification circuit for using diode bridge heap to be made into, whole efficiency is higher, and temperature is lower, more
It is reliable.
Detailed description of the invention
The embodiment of the present invention is described below in conjunction with attached drawing, in which:
Fig. 1 is the circuit diagram of the positive and negative low-loss LED lamp driving circuit connect provided by the invention.
Specific embodiment
Specific embodiments of the present invention are further elaborated below based on attached drawing.It should be understood that herein
The explanation of the embodiment of the present invention is not intended to limit the scope of protection of the present invention.
Referring to FIG. 1, the positive and negative low-loss LED lamp driving circuit connect provided by the invention includes p-type field-effect tube
Q1, p-type field-effect tube Q2, N-type field-effect tube Q3, N-type field-effect tube Q4 and several Light-emitting diode LED 1-LED10 and several
Resistance R1-R5.
First DC power supply terminal VB+ is connect with the drain electrode of p-type field-effect tube Q1 and N-type field-effect tube Q3, is also imitated with p-type field
Should pipe Q2 and N-type field-effect tube Q4 grid connection；Second DC power supply terminal VB- and p-type field-effect tube Q2 and N-type field-effect tube
The drain electrode of Q4 connects, and also connect with the grid of p-type field-effect tube Q1 and N-type field-effect tube Q3；The source electrode of p-type field-effect tube Q1 with
The source electrode of p-type field-effect tube Q2 connects；The source electrode of N-type field-effect tube Q3 is connect with the source electrode of N-type field-effect tube Q4.
The source electrode of the anode of at least one light emitting diode and the source electrode of p-type field-effect tube Q1 or p-type field-effect tube Q2 connects
It connects, the cathode of light emitting diode is connect by resistance with the source electrode of the source electrode of N-type field-effect tube Q3 or N-type field-effect tube Q4.
In present embodiment, the anode of Light-emitting diode LED 1 and the source electrode of p-type field-effect tube Q1 or p-type field-effect tube Q2
Source electrode connection, cathode connect with the anode of Light-emitting diode LED 2, and the cathode of Light-emitting diode LED 2 passes through resistance R1 and N-type
The source electrode connection of the source electrode or N-type field-effect tube Q4 of field-effect tube Q3；The anode and p-type field-effect tube Q1 of Light-emitting diode LED 3
Source electrode or p-type field-effect tube Q2 source electrode connection, cathode connect with the anode of Light-emitting diode LED 4, Light-emitting diode LED 4
Cathode connect with the source electrode of the source electrode of N-type field-effect tube Q3 or N-type field-effect tube Q4 by resistance R2；Light-emitting diode LED 5
Anode connect with the source electrode of the source electrode of p-type field-effect tube Q1 or p-type field-effect tube Q2, the sun of cathode and Light-emitting diode LED 6
The cathode of pole connection, Light-emitting diode LED 6 passes through resistance R3 and the source electrode of N-type field-effect tube Q3 or the source of N-type field-effect tube Q4
Pole connection；The anode of Light-emitting diode LED 7 is connect with the source electrode of the source electrode of p-type field-effect tube Q1 or p-type field-effect tube Q2, yin
Pole is connect with the anode of Light-emitting diode LED 8, and the cathode of Light-emitting diode LED 8 passes through resistance R4's and N-type field-effect tube Q3
The connection of the source electrode of source electrode or N-type field-effect tube Q4；The anode of Light-emitting diode LED 9 and the source electrode or p-type of p-type field-effect tube Q1
The source electrode of field-effect tube Q2 connects, and cathode is connect with the anode of Light-emitting diode LED 10, and the cathode of Light-emitting diode LED 10 is logical
Resistance R5 is crossed to connect with the source electrode of the source electrode of N-type field-effect tube Q3 or N-type field-effect tube Q4.
When the first DC power supply terminal VB+ is anode, the second DC power supply terminal VB- is cathode, p-type field-effect tube Q1 is led
Logical, source electrode is high level；N-type field-effect tube Q4 conducting, source electrode are low level, so that Light-emitting diode LED 1,
The anode of LED3, LED5, LED7, LED9 are high level, and one end of the source electrode of resistance R1-R5 connection N-type field-effect tube Q4 is
Low level, Light-emitting diode LED 1-LED10 are both turned on and light.
When the first DC power supply terminal VB+ is cathode, the second DC power supply terminal VB- is anode, p-type field-effect tube Q2 is led
Logical, source electrode is high level；N-type field-effect tube Q3 conducting, source electrode are low level, so that Light-emitting diode LED 1,
The anode of LED3, LED5, LED7, LED9 are high level, and one end of the source electrode of resistance R1-R5 connection N-type field-effect tube Q4 is
Low level, Light-emitting diode LED 1-LED10 are both turned on and light.
So no matter power supply just connects or is reversely connected, and Light-emitting diode LED 1, LED3, LED5, LED7, LED9 can be lighted,
And since the conduction loss of field-effect tube is minimum, overall losses are smaller, and calorific value is small, compared to using diode bridge heap to be made into
Rectification circuit, whole efficiency is higher, and temperature is lower, more reliably.
Compared with prior art, the positive and negative low-loss LED lamp driving circuit connect of the invention is connected to the first direct current
Between power end and the second DC power supply terminal, including p-type field-effect tube Q1, p-type field-effect tube Q2, N-type field-effect tube Q3, N-type
Field-effect tube Q4 and at least one light emitting diode and at least one resistance；First DC power supply terminal and p-type field-effect tube Q1 and N
The drain electrode of type field-effect tube Q3 connects, and also connect with the grid of p-type field-effect tube Q2 and N-type field-effect tube Q4；Second direct current
Source is connect with the drain electrode of p-type field-effect tube Q2 and N-type field-effect tube Q4, also with p-type field-effect tube Q1 and N-type field-effect tube Q3
Grid connection；The source electrode of p-type field-effect tube Q1 is connect with the source electrode of p-type field-effect tube Q2；The source electrode of N-type field-effect tube Q3 with
The source electrode of N-type field-effect tube Q4 connects；The anode of light emitting diode and the source electrode of p-type field-effect tube Q1 or p-type field-effect tube Q2
Source electrode connection, the cathode of light emitting diode passes through resistance and the source electrode of N-type field-effect tube Q3 or the source electrode of N-type field-effect tube Q4
Connection.In this way, no matter power supply, which just connects or is reversely connected, to work normally, it is whole since the conduction loss of field-effect tube is minimum
Loss is smaller, and calorific value is small, and compared to the rectification circuit for using diode bridge heap to be made into, whole efficiency is higher, and temperature is lower, more
It is reliable.
The foregoing is merely a prefered embodiment of the invention, is not used to limitation protection scope of the present invention, any in the present invention
Modification, equivalent replacement or improvement in spirit etc., all cover in scope of the presently claimed invention.
Claims (1)
1. a kind of positive and negative low-loss LED lamp driving circuit connect, is connected to the first DC power supply terminal and the second DC power supply
Between end, it is characterised in that: including p-type field-effect tube Q1, p-type field-effect tube Q2, N-type field-effect tube Q3, N-type field-effect tube Q4
And at least one light emitting diode and at least one resistance；First DC power supply terminal and p-type field-effect tube Q1 and N-type field-effect tube
The drain electrode of Q3 connects, and also connect with the grid of p-type field-effect tube Q2 and N-type field-effect tube Q4；Second DC power supply terminal and p-type field
The drain electrode of effect pipe Q2 and N-type field-effect tube Q4 connect, and also connect with the grid of p-type field-effect tube Q1 and N-type field-effect tube Q3；
The source electrode of p-type field-effect tube Q1 is connect with the source electrode of p-type field-effect tube Q2；The source electrode and N-type field-effect tube of N-type field-effect tube Q3
The source electrode of Q4 connects；The anode of light emitting diode is connect with the source electrode of the source electrode of p-type field-effect tube Q1 or p-type field-effect tube Q2,
The cathode of light emitting diode is connect by resistance with the source electrode of the source electrode of N-type field-effect tube Q3 or N-type field-effect tube Q4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811257186.3A CN109121260A (en) | 2018-10-26 | 2018-10-26 | The positive and negative low-loss LED lamp driving circuit connect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811257186.3A CN109121260A (en) | 2018-10-26 | 2018-10-26 | The positive and negative low-loss LED lamp driving circuit connect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109121260A true CN109121260A (en) | 2019-01-01 |
Family
ID=64855561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811257186.3A Pending CN109121260A (en) | 2018-10-26 | 2018-10-26 | The positive and negative low-loss LED lamp driving circuit connect |
Country Status (1)
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| CN (1) | CN109121260A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013000106A1 (en) * | 2011-06-29 | 2013-01-03 | 宁波赛尔富电子有限公司 | Circuit for protecting led from surge |
| CN104540284A (en) * | 2012-03-23 | 2015-04-22 | 四川新力光源股份有限公司 | LED illumination and dimming device |
| CN204498419U (en) * | 2015-03-05 | 2015-07-22 | 沈正鲜 | A kind of multifunction remote-control LED adapter |
| CN105682296A (en) * | 2016-03-21 | 2016-06-15 | 江门市蓬江区广达电器有限公司 | Forward-reverse connection type LED lamp string |
| CN105828489A (en) * | 2016-06-01 | 2016-08-03 | 东莞市擎洲光电科技有限公司 | LED light modulation device based on H-bridge circuit |
| CN108245174A (en) * | 2018-01-15 | 2018-07-06 | 西安交通大学 | The analog circuit front-end module and detection method of a kind of reflecting light Power Capacity wave |
| CN209497635U (en) * | 2018-10-26 | 2019-10-15 | 叶姜 | The positive and negative low-loss LED lamp driving circuit connect |
-
2018
- 2018-10-26 CN CN201811257186.3A patent/CN109121260A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013000106A1 (en) * | 2011-06-29 | 2013-01-03 | 宁波赛尔富电子有限公司 | Circuit for protecting led from surge |
| CN104540284A (en) * | 2012-03-23 | 2015-04-22 | 四川新力光源股份有限公司 | LED illumination and dimming device |
| CN204498419U (en) * | 2015-03-05 | 2015-07-22 | 沈正鲜 | A kind of multifunction remote-control LED adapter |
| CN105682296A (en) * | 2016-03-21 | 2016-06-15 | 江门市蓬江区广达电器有限公司 | Forward-reverse connection type LED lamp string |
| CN105828489A (en) * | 2016-06-01 | 2016-08-03 | 东莞市擎洲光电科技有限公司 | LED light modulation device based on H-bridge circuit |
| CN108245174A (en) * | 2018-01-15 | 2018-07-06 | 西安交通大学 | The analog circuit front-end module and detection method of a kind of reflecting light Power Capacity wave |
| CN209497635U (en) * | 2018-10-26 | 2019-10-15 | 叶姜 | The positive and negative low-loss LED lamp driving circuit connect |
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