CN206100558U - LED dimming drive circuit - Google Patents
LED dimming drive circuit Download PDFInfo
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- CN206100558U CN206100558U CN201621168806.2U CN201621168806U CN206100558U CN 206100558 U CN206100558 U CN 206100558U CN 201621168806 U CN201621168806 U CN 201621168806U CN 206100558 U CN206100558 U CN 206100558U
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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 provides a LED dimming drive circuit, includes light modulator, rectification filter circuit, light modulation control circuit, rectification filter circuit's first input end and municipality live wire are connected, rectification filter circuit's second input is connected be connected with the commercial power zero line behind the light modulator, rectification filter circuit's two way outputs are connected with light modulation control circuit's two way inputs, and light modulation control circuit includes a constant current drive chip, the 2nd constant current drive chip, third resistance, fourth resistance, the 5th resistance, the 9th resistance, the 11 resistance, third electric capacity, fourth electric capacity, the 5th electric capacity, first diode, the utility model discloses circuit structure is simple, and the volume is less, and can compatible multiple triac dimmer, and provides the maintenance current because a constant current drive chip is the 2nd constant current drive chip, if break down, a constant current drive chip falls to get into standby state behind the electricity to make the 2nd constant current drive chip cross because of the maintenance current and hang down entering standby state, thus the protection circuit.
Description
Technical field
This utility model is related to a kind of dimming driving circuit, refers specifically to a kind of thyristor regulating light drive circuit of LED.
Background technology
The 21 century energy tighten strategy by energy-saving and emission-reduction as countries in the world primary measure.And with conventional incandescent and glimmering
Light lamp is compared, and LED has small volume, can many multiple combinations, caloric value is low, and heat radiation is little, and energy consumption is low, be capable of achieving low-voltage,
The advantages of low current startup, long service life, widelyd popularize.
In the market most LED dimming power sources are broadly divided into numeral, 0-10V, controllable silicon light modulation, and due to original
The multiplex silicon controlled dimmer for light control of light fixture in family, for wideling popularize for LED, technical staff is devoted to compatible silicon controlled
The research design of LED light adjusting circuits, but the thyristor regulating optical circuit of existing LED, poor compatibility, circuit structure are complicated, and with
The increasing of LED lamp power, its volume is larger, the development of LED is hindered to a certain extent.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of circuit structure in view of the above-mentioned state of the art
Simply, LED dimming driving circuits that can be with compatible various controllable silicon dimmers and with self-protection function.
This utility model solve the technical scheme that adopted of above-mentioned technical problem for：
A kind of LED dimming driving circuits, including dimmer, current rectifying and wave filtering circuit, adjusting control circuit, the rectifying and wave-filtering
The first input end of circuit is connected with civil power live wire, the second input of the current rectifying and wave filtering circuit connect after the dimmer with
Civil power zero line connects, and the two-way outfan of current rectifying and wave filtering circuit is connected with the two-way input of adjusting control circuit, and its feature exists
In：The adjusting control circuit include the first constant-current driven chip, the second constant-current driven chip, 3rd resistor, the 4th resistance, the
Five resistance, the 9th resistance, the 11st resistance, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the first diode, wherein, first is permanent
First pin of stream driving chip is connected with the first end of 3rd resistor, and the end of 3rd resistor second connects the current rectifying and wave filtering circuit
The first outfan, the second end of 3rd resistor connects the positive pole of the first diode, and the negative pole connection the 5th of the first diode is electric
The positive pole of appearance, the positive pole of the 5th electric capacity is also connected with the first end of the 9th resistance simultaneously, the negative pole and the 9th resistance of the 5th electric capacity
The second end be connected with the first pin of the second constant-current driven chip, the both positive and negative polarity of the load of LED respectively with the 9th resistance
First end and the second end connect；The second pin and current rectifying and wave filtering circuit of the first constant-current driven chip and the second constant-current driven chip
It is grounded after the connection of second outfan；With the second constant-current driving core after 3rd pin the 4th resistance of connection of the first constant-current driven chip
The 3rd pin connection of piece；The first end of the 3rd electric capacity is connected with the 3rd pin of the first constant-current driven chip, the 3rd electric capacity
Second end is connected with the first end of the 11st resistance, the second end of the 11st resistance and the 3rd pin of the second constant-current driven chip
Connection；The first end of the 5th resistance is connected with the second end of the 11st resistance, the second end ground connection of the 5th resistance；4th electric capacity
First end is connected with the first pin of the first constant-current driven chip, the second end ground connection of the 4th electric capacity.
The current rectifying and wave filtering circuit includes insurance resistance, filter inductance, filter capacitor, varistor and bridge rectifier pipe,
The first end for wherein insuring resistance is connected with civil power live wire, and the second end for insuring resistance connects the first end of varistor, pressure-sensitive
The first end of resistance connects the first end of the first inductance simultaneously, and the second end of the first inductance connects the first end of filter capacitor, filter
The first end of ripple electric capacity connects the exchange first end of rectifier bridge stack, and the first end of dimmer is connected with civil power zero line, dimmer
Second end is connected with the second end of varistor, and the second end of varistor is connected with the second end of filter capacitor simultaneously, filters
Second end of electric capacity is connected with second end that exchanges of rectifier bridge stack simultaneously, and two outfans of rectifier bridge stack are rectifying and wave-filtering electricity
Two outfans on road.
Preferably, first constant-current driven chip adopts the linear constant current LED drive chip of model TC1615B, institute
State linear constant current LED drive chip of second constant-current driven chip using model TC1615.
Compared with prior art, the utility model has the advantage of：This utility model circuit structure is simple, small volume,
And the compatible various controllable silicon dimmers of energy, due to providing maintenance electricity for the second constant-current driven chip by the first constant-current driven chip
Stream, in the event of failure, enters holding state after the first constant-current driven chip power down so that the second constant-current driven chip because
The too low entrance holding state of electric current is maintained, so as to protection circuit.
Description of the drawings
Fig. 1 is the circuit diagram of this utility model embodiment.
Specific embodiment
This utility model is described in further detail below in conjunction with accompanying drawing embodiment：
A kind of LED dimming driving circuits, including dimmer, current rectifying and wave filtering circuit a, adjusting control circuit b, the rectification filter
The first input end of wave circuit a is connected with civil power live wire, and second input of the current rectifying and wave filtering circuit a connects the dimmer
It is connected with civil power zero line afterwards, the two-way outfan of current rectifying and wave filtering circuit a is connected with the two-way input of adjusting control circuit b, its
It is characterised by：The adjusting control circuit b includes the first constant-current driven chip U1, the second constant-current driven chip U2,3rd resistor
R3, the 4th resistance R4, the 5th resistance R5, the 9th resistance R9, the 11st resistance R11, the 3rd electric capacity C3, the 4th electric capacity C4, the 5th
Electric capacity C5, the first diode D1, wherein, first pin of the first constant-current driven chip U1 connects with the first end of 3rd resistor R3
Connect, the end of 3rd resistor R3 second connects first outfan 4 of the current rectifying and wave filtering circuit a, the second end connection of 3rd resistor R3
The positive pole of the first diode D1, the negative pole of the first diode D1 connects the positive pole of the 5th electric capacity C5, and the positive pole of the 5th electric capacity C5 is same
When be also connected with the first end of the 9th resistance R9, the negative pole of the 5th electric capacity C5 and second end of the 9th resistance R9 with the second constant current
The first pin connection of driving chip U2, the both positive and negative polarity of the load of LED connects respectively with the first end of the 9th resistance R9 and the second end
Connect；The second pin of the first constant-current driven chip U1 and the second constant-current driven chip U2 and the second outfans of current rectifying and wave filtering circuit a 7
It is grounded after connection；3rd pin of the first constant-current driven chip U1 connects after the 4th resistance R4 with the second constant-current driven chip U2's
3rd pin connects；The first end of the 3rd electric capacity C3 is connected with the 3rd pin of the first constant-current driven chip U1, the 3rd electric capacity C3
The second end be connected with the first end of the 11st resistance R11, second end of the 11st resistance R11 and the second constant-current driven chip U2
The 3rd pin connection；The first end of the 5th resistance R5 is connected with second end of the 11st resistance R11, and the second of the 5th resistance R5
End ground connection；The first end of the 4th electric capacity C4 is connected with first pin of the first constant-current driven chip U1, and the second of the 4th electric capacity C4
End ground connection.
The current rectifying and wave filtering circuit a includes insurance resistance FR, filter inductance L1, filter capacitor C1, varistor RV and bridge
Formula rectifier tube DB1, wherein the first end of insurance resistance FR is connected with civil power live wire, the second end for insuring resistance FR connects pressure-sensitive electricity
The first end of resistance RV, the first end of varistor RV connects the first end of the first inductance L1, second end of the first inductance L1 simultaneously
The first end of connection filter capacitor C1, the first end of filter capacitor C1 connects the exchange first end 5 of rectifier bridge stack DB1, dimmer
First end be connected with civil power zero line, the second end of dimmer is connected with second end of varistor RV, the of varistor RV
Two ends are connected with second end of filter capacitor C1 simultaneously, and second end of filter capacitor C1 exchanges the with rectifier bridge stack DB1 simultaneously
Two ends 6 are connected, and two outfans of rectifier bridge stack DB1 are two outputs of current rectifying and wave filtering circuit a.
First constant-current driven chip U1 described in the present embodiment adopts the linear constant current LED drive chip of model TC1615B,
The second constant-current driven chip U2 adopts the linear constant current LED drive chip of model TC1615.
This utility model circuit structure is simple, small volume, and the compatible various controllable silicon dimmers of energy, due to by first
Constant-current driven chip U1 provides maintenance electric current for the second constant-current driven chip U2, in the event of failure, the first constant-current driven chip
Holding state is entered after U1 power down, so that the second constant-current driven chip U2 is because maintaining the too low entrance holding state of electric current, from
And protection circuit.
Claims (3)
1. a kind of LED dimming driving circuits, including dimmer, current rectifying and wave filtering circuit (a), adjusting control circuit (b), the rectification
The first input end of filter circuit (a) is connected with civil power live wire, and the second input connection of the current rectifying and wave filtering circuit (a) is described
It is connected with civil power zero line after dimmer, the two-way outfan of current rectifying and wave filtering circuit (a) is input into the two-way of adjusting control circuit (b)
End connection, it is characterised in that：The adjusting control circuit (b) includes the first constant-current driven chip (U1), the second constant-current driving core
Piece (U2), 3rd resistor (R3), the 4th resistance (R4), the 5th resistance (R5), the 9th resistance (R9), the 11st resistance (R11),
Three electric capacity (C3), the 4th electric capacity (C4), the 5th electric capacity (C5), the first diode (D1), wherein, the first constant-current driven chip (U1)
The first pin be connected with the first end of 3rd resistor (R3), the end of 3rd resistor (R3) second connects the current rectifying and wave filtering circuit
A first outfan (4) of (), the second end of 3rd resistor (R3) connects the positive pole of the first diode (D1), the first diode
(D1) negative pole connects the positive pole of the 5th electric capacity (C5), and the positive pole of the 5th electric capacity (C5) is simultaneously also with the first of the 9th resistance (R9)
End is connected, and the negative pole of the 5th electric capacity (C5) and the second end of the 9th resistance (R9) are with the first of the second constant-current driven chip (U2)
Pin connects, and the both positive and negative polarity of the load of LED is connected respectively with the first end of the 9th resistance (R9) and the second end；First constant-current driving
The second pin of chip (U1) and the second constant-current driven chip (U2) is connected with second outfan (7) of current rectifying and wave filtering circuit (a)
After be grounded；3rd pin of the first constant-current driven chip (U1) connect the 4th resistance (R4) afterwards with the second constant-current driven chip (U2)
The 3rd pin connection；The first end of the 3rd electric capacity (C3) is connected with the 3rd pin of the first constant-current driven chip (U1), and the 3rd
Second end of electric capacity (C3) is connected with the first end of the 11st resistance (R11), and the second end of the 11st resistance (R11) is permanent with second
The 3rd pin connection of stream driving chip (U2)；The first end of the 5th resistance (R5) connects with the second end of the 11st resistance (R11)
Connect, the second end ground connection of the 5th resistance (R5)；The first end of the 4th electric capacity (C4) and the first of the first constant-current driven chip (U1)
Pin connects, the second end ground connection of the 4th electric capacity (C4).
2. LED dimming driving circuits described in claim 1, it is characterised in that：The current rectifying and wave filtering circuit (a) includes insurance electricity
Resistance (FR), filter inductance (L1), filter capacitor (C1), varistor (RV) and bridge rectifier pipe (DB1), wherein insuring resistance
(FR) first end is connected with civil power live wire, insures the first end at second end connection varistor (RV) of resistance (FR), pressure-sensitive
The first end of resistance (RV) connects the first end of the first inductance (L1), the second end connection filter capacitor of the first inductance (L1) simultaneously
(C1) first end, the exchange first end (5) of first end connection rectifier bridge stack (DB1) of filter capacitor (C1), the of dimmer
One end is connected with civil power zero line, and the second end of dimmer is connected with the second end of varistor (RV), and the of varistor (RV)
Two ends are connected with the second end of filter capacitor (C1) simultaneously, the second end of filter capacitor (C1) simultaneously with rectifier bridge stack (DB1)
Exchange the second end (6) to be connected, two outfans of rectifier bridge stack (DB1) are two outfans of current rectifying and wave filtering circuit (a).
3. LED dimming driving circuits described in claim 1 or 2, it is characterised in that：First constant-current driven chip (U1) is adopted
With the linear constant current LED drive chip of model TC1615B, second constant-current driven chip (U2) is using model TC1615
Linear constant current LED drive chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621168806.2U CN206100558U (en) | 2016-10-26 | 2016-10-26 | LED dimming drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621168806.2U CN206100558U (en) | 2016-10-26 | 2016-10-26 | LED dimming drive circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206100558U true CN206100558U (en) | 2017-04-12 |
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ID=58486109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621168806.2U Active CN206100558U (en) | 2016-10-26 | 2016-10-26 | LED dimming drive circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206100558U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107734761A (en) * | 2017-11-01 | 2018-02-23 | 上海典芯半导体有限公司 | A kind of integrated LED light adjusting circuits of hypervelocity |
| CN110177408A (en) * | 2019-04-20 | 2019-08-27 | 王世宇 | A kind of LED light that connection silicon controlled sound control switch uses |
-
2016
- 2016-10-26 CN CN201621168806.2U patent/CN206100558U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107734761A (en) * | 2017-11-01 | 2018-02-23 | 上海典芯半导体有限公司 | A kind of integrated LED light adjusting circuits of hypervelocity |
| CN110177408A (en) * | 2019-04-20 | 2019-08-27 | 王世宇 | A kind of LED light that connection silicon controlled sound control switch uses |
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