CN204031520U - A kind of LED linear non-pole light regulating circuit - Google Patents
A kind of LED linear non-pole light regulating circuit Download PDFInfo
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- CN204031520U CN204031520U CN201420318580.4U CN201420318580U CN204031520U CN 204031520 U CN204031520 U CN 204031520U CN 201420318580 U CN201420318580 U CN 201420318580U CN 204031520 U CN204031520 U CN 204031520U
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Abstract
The utility model discloses a kind of LED linear non-pole light regulating circuit, comprise constant-voltage DC source, described constant-voltage DC source is connected with the first resistive circuit, and described first resistance is connected with the positive pole circuit of the second resistance, LED respectively, and described second resistance is connected with slide rheostat circuit; The negative pole of described LED is connected with transistor collector circuit, described transistor base is connected with the 3rd resistive circuit, described 3rd resistance is connected with slide rheostat circuit, and described triode emission level is connected with constant-voltage DC source circuit after connecting with slide rheostat; 1 LED is at least installed between described first resistance and transistor collector.A kind of LED linear non-pole light regulating circuit described in the utility model, dimming process is even, and without stroboscopic, without electromagnetic interference, High-efficient Production cost is low.
Description
Technical field
The utility model relates to a kind of light adjusting circuit, particularly relates to a kind of LED linear non-pole light regulating circuit.
Background technology
Present LED light regulating technology mainly by frequency or the ON time of control switch pipe, realizes the controlled of LED watt level, completes lamp brightness 0-100% luminous flux and controls.But adopting is generally realized by chip or single-chip microcomputer in this way, and cost compare is high, also has complex circuit, have the shortcomings such as EMI electromagnetic interference.
Utility model content
The purpose of this utility model is to provide a kind of LED linear non-pole light regulating circuit, its simplicity of design, and dimming process is even, without stroboscopic, without electromagnetic interference, efficiently and production cost is low.
In order to achieve the above object, the technical solution of the utility model is:
A kind of LED linear non-pole light regulating circuit, comprise constant-voltage DC source DC, described constant-voltage DC source DC is connected with the first resistance R1 circuit, and described first resistance R1 is connected with the positive pole circuit of second resistance R2, LED respectively, and wherein said second resistance R2 is connected with slide rheostat R4 circuit; The negative pole of described LED is connected with triode Q1 collector electrode circuit, described triode Q1 base stage is connected with the 3rd resistance R3 circuit, described 3rd resistance R3 is connected with slide rheostat R4 circuit, and described triode Q1 emitting stage is connected with constant-voltage DC source DC circuit after connecting with slide rheostat R4; Between described first resistance R1 and triode Q1 collector electrode, 1 LED is at least installed.
Described triode Q1 is replaced by field effect transistor FET.
Between described first resistance R1 and triode Q1 collector electrode, 4 LED are installed.
Between described first resistance R1 and triode Q1 collector electrode, 8 LED are installed.
Between described first resistance R1 and triode Q1 collector electrode, 12 LED are installed.
The beneficial effects of the utility model are: a kind of LED linear non-pole light regulating circuit, its simplicity of design, and dimming process is even, without stroboscopic, without electromagnetic interference, efficiently and production cost is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the structural representation of the utility model embodiment 2.
embodiment
?
Embodiment 1
A kind of LED linear non-pole light regulating circuit as shown in Figure 1, comprise constant-voltage DC source DC, described constant-voltage DC source DC is connected with the first resistance R1 circuit, described first resistance R1 is connected with the positive pole circuit of second resistance R2, LED respectively, and wherein said second resistance R2 is connected with slide rheostat R4 circuit; The negative pole of described LED is connected with triode Q1 collector electrode circuit, described triode Q1 base stage is connected with the 3rd resistance R3 circuit, described 3rd resistance R3 is connected with slide rheostat R4 circuit, and described triode Q1 emitting stage is connected with constant-voltage DC source DC circuit after connecting with slide rheostat R4.
Described input constant-voltage DC source DC comprises finished product power supply that market is buied or producer and to control oneself the constant voltage wiring board produced.When input constant-voltage DC source DC is 12V, between described first resistance R1 and triode Q1 collector electrode, 4 LED are a string lamp pearl, according to actual power size, and multi-channel parallel.Total voltage after LED strip connection is close with the voltage of input constant-voltage DC source DC.Total voltage after conventional LED strip connection is a little less than the voltage of input constant-voltage DC source DC.When input constant-voltage DC source DC is 24V, installing 8 LED between described first resistance R1 and triode Q1 collector electrode is a string lamp pearl, according to actual power size, and multi-channel parallel.Total voltage after LED strip connection is close with the voltage of input constant-voltage DC source DC.
Input constant-voltage DC source DC described in the present embodiment is 24V, and be therefore installed in series between the first resistance R1 and triode Q1 collector electrode 8 LED.When slide rheostat R4 moves on to top, the resistance of slide rheostat R4 is 0.The resistance of the second resistance R2 and the resistance sum of slide rheostat R4 minimum, maximum by the electric current of triode Q1, the brightness of LED lamp bead is 100%.When slide rheostat R4 moves down into bottom, the resistance of slide rheostat R4 is maximum.The resistance of the second resistance R2 and the resistance sum of slide rheostat R4 maximum, minimum by the electric current of triode Q1, the brightness of LED lamp bead is 0, thus reaches the effect of non-pole light regulating.Pressure drop due to triode Q1 makes the voltage be split on each LED reduce, and on each LED, voltage only need reduce a few volt at zero point, and the brightness of lamp pearl will drop to 0 from 100%.Therefore triode Q1 only need share very little voltage, just can realize 0-100% non-pole light regulating, so the total efficiency of circuit is very high, triode Q1 caloric value is little.
A kind of LED linear non-pole light regulating circuit of the present embodiment, its simplicity of design, dimming process is even, without stroboscopic, without electromagnetic interference, efficiently and production cost is low.
Embodiment 2
A kind of LED linear non-pole light regulating circuit as shown in Figure 2, comprise constant-voltage DC source DC, described constant-voltage DC source DC is connected with the first resistance R1 circuit, described first resistance R1 is connected with the positive pole circuit of second resistance R2, LED respectively, and wherein said second resistance R2 is connected with slide rheostat R4 circuit; The negative pole of described LED is connected with the drain electrode circuit of field effect transistor FET, the grid of described field effect transistor FET is connected with the 3rd resistance R3 circuit, described 3rd resistance R3 is connected with slide rheostat R4 circuit, and the source electrode of described field effect transistor FET is connected with constant-voltage DC source DC circuit after connecting with slide rheostat R4.
Described input constant-voltage DC source DC comprises finished product power supply that market is buied or producer and to control oneself the constant voltage wiring board produced.When input constant-voltage DC source DC is 12V, be installed in series between described first resistance R1 and the drain electrode of field effect transistor FET 4 LED.Or ensure that the total voltage after LED strip connection is close with the voltage of input constant-voltage DC source DC.Total voltage after conventional LED strip connection is a little less than the voltage of input constant-voltage DC source DC.When input constant-voltage DC source DC is 24V, be installed in series between described first resistance R1 and the drain electrode of field effect transistor FET 8 LED.Or ensure that the total voltage after LED strip connection is close with the voltage of input constant-voltage DC source DC.
Input constant-voltage DC source DC described in the present embodiment is 24V, and be therefore installed in series between the first resistance R1 and the drain electrode of field effect transistor FET 8 LED.When slide rheostat R4 moves on to top, the resistance of slide rheostat R4 is 0.The resistance of the second resistance R2 and the resistance sum of slide rheostat R4 minimum, maximum by the electric current of field effect transistor FET, the brightness of LED lamp bead is 100%.When slide rheostat R4 moves down into bottom, the resistance of slide rheostat R4 is maximum.The resistance of the second resistance R2 and the resistance sum of slide rheostat R4 maximum, minimum by the electric current of field effect transistor FET, the brightness of LED lamp bead is 0, thus reaches the effect of non-pole light regulating.Pressure drop due to field effect transistor FET makes the voltage be split on each LED reduce, and on each LED, voltage only need reduce a few volt at zero point, and the brightness of lamp pearl will drop to 0 from 100%.Therefore field effect transistor FET only need share very little voltage, just can realize 0-100% non-pole light regulating, so the total efficiency of circuit is very high, field effect transistor FET caloric value is little.
A kind of LED linear non-pole light regulating circuit of the present embodiment, its simplicity of design, dimming process is even, without stroboscopic, without electromagnetic interference, efficiently and production cost is low.
Claims (5)
1. a LED linear non-pole light regulating circuit, it is characterized in that: comprise constant-voltage DC source DC, described constant-voltage DC source DC is connected with the first resistance R1 circuit, described first resistance R1 is connected with the positive pole circuit of second resistance R2, LED respectively, and wherein said second resistance R2 is connected with slide rheostat R4 circuit; The negative pole of described LED is connected with triode Q1 collector electrode circuit, described triode Q1 base stage is connected with the 3rd resistance R3 circuit, described 3rd resistance R3 is connected with slide rheostat R4 circuit, and described triode Q1 emitting stage is connected with constant-voltage DC source DC circuit after connecting with slide rheostat R4; Between described first resistance R1 and triode Q1 collector electrode, 1 LED is at least installed.
2. a kind of LED linear non-pole light regulating circuit according to claim 1, is characterized in that: described triode Q1 is replaced by field effect transistor FET.
3. a kind of LED linear non-pole light regulating circuit according to claim 1 and 2, is characterized in that: be provided with 4 LED between described first resistance R1 and triode Q1 collector electrode.
4. a kind of LED linear non-pole light regulating circuit according to claim 1 and 2, is characterized in that: be provided with 8 LED between described first resistance R1 and triode Q1 collector electrode.
5. a kind of LED linear non-pole light regulating circuit according to claim 1 and 2, is characterized in that: be provided with 12 LED between described first resistance R1 and triode Q1 collector electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420318580.4U CN204031520U (en) | 2014-06-16 | 2014-06-16 | A kind of LED linear non-pole light regulating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420318580.4U CN204031520U (en) | 2014-06-16 | 2014-06-16 | A kind of LED linear non-pole light regulating circuit |
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| Publication Number | Publication Date |
|---|---|
| CN204031520U true CN204031520U (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420318580.4U Expired - Fee Related CN204031520U (en) | 2014-06-16 | 2014-06-16 | A kind of LED linear non-pole light regulating circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104010423A (en) * | 2014-06-16 | 2014-08-27 | 新昌县博阳照明有限公司 | LED linear stepless dimming circuit |
-
2014
- 2014-06-16 CN CN201420318580.4U patent/CN204031520U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104010423A (en) * | 2014-06-16 | 2014-08-27 | 新昌县博阳照明有限公司 | LED linear stepless dimming circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20141217 Termination date: 20160616 |