CN209497635U - 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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- CN209497635U CN209497635U CN201821752351.8U CN201821752351U CN209497635U CN 209497635 U CN209497635 U CN 209497635U CN 201821752351 U CN201821752351 U CN 201821752351U CN 209497635 U CN209497635 U CN 209497635U
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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 utility model relates to electric lighting technical field, especially a kind of positive and negative low-loss LED lamp driving connect
Circuit.
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.
Utility model content
No matter power supply just connects or is reversely connected can work normally and be lost in view of this, the present invention provides a kind of
The positive and negative low-loss LED lamp driving circuit connect small, work efficiency is high, calorific value is small, temperature is low, to solve above-mentioned ask
Topic.
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 utility model is connected to first
Between DC power supply terminal 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 the drain electrode connection of N-type field-effect tube Q3, also it is connect with the grid of p-type field-effect tube Q2 and N-type field-effect tube Q4；Second direct current
Power end 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
The grid of Q3 connects；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
It is connect with the source electrode of N-type field-effect tube Q4；The anode of light emitting diode and the source electrode or p-type field-effect tube of p-type field-effect tube Q1
The source electrode of Q2 connects, and the cathode of light emitting diode passes through resistance and the source electrode of N-type field-effect tube Q3 or the source of N-type field-effect tube Q4
Pole 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
Body 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,
It is more reliable.
Detailed description of the invention
The embodiments of the present invention are 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 utility model.
Specific embodiment
Specific embodiment of the utility model is further elaborated below based on attached drawing.It should be understood that
The explanation of the utility model embodiment is not used to herein to limit the protection scope of the utility model.
Referring to FIG. 1, the positive and negative low-loss LED lamp driving circuit connect provided by the utility model includes p-type field effect
Should pipe 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 utility model is connected to first
Between DC power supply terminal 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 the drain electrode connection of N-type field-effect tube Q3, also it is connect with the grid of p-type field-effect tube Q2 and N-type field-effect tube Q4；Second direct current
Power end 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
The grid of Q3 connects；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
It is connect with the source electrode of N-type field-effect tube Q4；The anode of light emitting diode and the source electrode or p-type field-effect tube of p-type field-effect tube Q1
The source electrode of Q2 connects, and the cathode of light emitting diode passes through resistance and the source electrode of N-type field-effect tube Q3 or the source of N-type field-effect tube Q4
Pole 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
Body 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,
It is more reliable.
The above is only the preferred embodiments of the utility model, are not used to the limitation protection scope of the utility model, any
Modification, equivalent replacement or improvement within the spirit of the present invention etc. are all covered in the scope of the claims of the utility model.
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 direct current
Source is connect with the drain electrode of p-type field-effect tube Q1 and N-type field-effect tube Q3, also with p-type field-effect tube Q2 and N-type field-effect tube Q4
Grid connection；Second DC power supply terminal is connect with the drain electrode of p-type field-effect tube Q2 and N-type field-effect tube Q4, is also imitated with p-type field
Should pipe 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 is connect with the source electrode of N-type field-effect tube Q4；The anode and p-type field-effect tube Q1 of light emitting diode
Source electrode or p-type field-effect tube Q2 source electrode connection, the cathode of light emitting diode passes through the source electrode of resistance and N-type field-effect tube Q3
Or the source electrode connection of N-type field-effect tube Q4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821752351.8U CN209497635U (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 |
|---|---|---|---|
| CN201821752351.8U CN209497635U (en) | 2018-10-26 | 2018-10-26 | The positive and negative low-loss LED lamp driving circuit connect |
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| Publication Number | Publication Date |
|---|---|
| CN209497635U true CN209497635U (en) | 2019-10-15 |
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| CN201821752351.8U Active CN209497635U (en) | 2018-10-26 | 2018-10-26 | The positive and negative low-loss LED lamp driving circuit connect |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109121260A (en) * | 2018-10-26 | 2019-01-01 | 叶姜 | The positive and negative low-loss LED lamp driving circuit connect |
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2018
- 2018-10-26 CN CN201821752351.8U patent/CN209497635U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109121260A (en) * | 2018-10-26 | 2019-01-01 | 叶姜 | The positive and negative low-loss LED lamp driving circuit connect |
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