CN205812466U - LED drives control circuit - Google Patents
LED drives control circuit Download PDFInfo
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- CN205812466U CN205812466U CN201620769136.3U CN201620769136U CN205812466U CN 205812466 U CN205812466 U CN 205812466U CN 201620769136 U CN201620769136 U CN 201620769136U CN 205812466 U CN205812466 U CN 205812466U
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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]
Abstract
A kind of LED disclosed in the utility model drives control circuit, including civil power, line voltage detection module and LED module, LED module includes two groups of lamp groups being made up of respectively more than one LED parallel connection, connect between two lamp groups and have Q1 and Q4, civil power is connected with line voltage detection module, the output of line voltage detection module connects the G end of field effect transistor, the S end of Q1 connects the positive pole of the second LED group, the D end of field effect transistor Q1 connects the negative pole of the first LED group, line voltage detection module connects to have also by charge protector and is charged to lithium battery when civil power normally works；Give the lithium battery that the second LED group is powered when mains supply is too low, civil power is by switch SW and drives module to connect the positive pole of the first LED group.This utility model main output LED when normal illumination works with emergency lighting LED simultaneously, makes full use of LED, reduces Material Cost.
Description
Technical field
This utility model relates to a kind of control circuit, and particularly a kind of LED drives control circuit.
Background technology
The raising required work living environment along with people, intelligent building obtains the concern of more and more people, by one
Series Intelligentization designs, and makes building be provided with safe and convenient, efficient, energy-conservation feature.Illuminator be in intelligent building not
The part that can lack, in municipal power failure power-off or voltage instability timing, emergency light will be for replacing original city electric lighting
Lamp provides illumination to positions such as the corridor in building, staircases, it is ensured that the safety of owner.The most current emergency light shines with common
Bright circuit is all independent wiring, such as: one group of general lighting is provided with 8 LED, and when general lighting, these 8 LED are complete
Bright, and emergency light needs other to arrange several LED, when causing wiring, integral installation structure is complicated, and to reality
Now emergent and illumination functions have to arrange different LED more, causes LED waste serious；The most how by general lighting
The key issue being to reduce LED waste at present is shared with the LED in emergency lighting.
Utility model content
The purpose of this utility model is to provide a kind of simple in construction, installation side to solve above-mentioned the deficiencies in the prior art
Just, reducing the waste of LED, the LED reducing resource utilization and cost drives control circuit.
To achieve these goals, a kind of LED designed by this utility model drives control circuit, including civil power, civil power
Voltage detection module and LED module, described LED module includes the first LED group being made up of more than one LED connection in series-parallel
With the second LED group being made up of more than one LED parallel connection, connect between the first described LED group and the second LED group
When having the first field effect transistor conducting, the first LED group and the second LED group are lighted as normal illumination, at emergency rating simultaneously
Time the first field effect transistor Q1 cut off the first LED group, and light the second LED group 3-2 after opening the second field effect transistor Q4 simultaneously
The first field effect transistor Q1 and the second field effect transistor Q4, described civil power is connected with line voltage detection module, line voltage examine
The output surveying module connects the G end of the first field effect transistor Q1, and the S end of the first field effect transistor Q1 connects the positive pole of the second LED group,
And first the D end of field effect transistor Q1 connect the negative pole of the first LED group, also by charge protection on line voltage detection module
Circuit connects to be had and is charged to lithium battery when civil power normally works；Power to when mains supply is too low second LED group
Lithium battery, the S foot of the second field effect transistor Q4 connects feeder ear 1 foot of lithium battery, and the D foot of the second field effect transistor Q4 connects second
The positive pole of LED group, the G foot of the second field effect transistor Q4 connects line voltage detection module by the second diode D2, described
Civil power is by switch SW and drives module 4 to connect the positive pole of the first LED group, uses the circuit such as Q1, general when normal illumination
Logical illumination output LED works with emergency lighting LED simultaneously, makes full use of LED, reduces Material Cost；Use dynamic simultaneously
Power type lithium battery, meets the illumination at-20 to 60 degrees Celsius and applies, and is providing with meet an urgent need identical with Ni-MH battery of lead-acid battery
During output, greatly reduce the volume and weight driving power supply；Emergency power supply input is provided with on-off control port, to light fixture
The opening and closing of illumination control flexibly, can automatically detect and start again simultaneously emergent output when municipal power failure.
In order to make circuit simpler, described driving module includes commutator DR1, ∏ type filter circuit, power drives core
Sheet U1 and the first transformator T1；The model of described power drives chip U1 is CL6234, wherein: described commutator DR1's
Two inputs by inductance L1 and control to switch the both positive and negative polarity of SW connection civil power, and an outfan of commutator DR1 connects
Inductance and the connection end of an electric capacity in ∏ type filter circuit, in ∏ type filter circuit, inductance connects electricity with the connection end of another electric capacity
The D end of source drive chip U1, the CS end of described power drives chip U1 connects the first transformator T1 by two resistance in parallel
1 foot, the first transformator T1 2 feet connect power drives chip U1 vdd terminal, the vdd terminal of power drives chip U1 also by
Connecting and connect the D end of power drives chip U1 after two resistance, 8 feet of the first transformator T1 are just connecting two parallel diodes
Extremely, the negative pole end of two parallel diodes connects the positive terminal of the first LED group, on positive terminal and the ground of the first LED group
It is also associated with the 3rd electrochemical capacitor CE3 between GND, when exporting as general lighting, uses power supply chip+two-winding transformer T1,
Greatly reduce circuit and transformator complexity and Material Cost, improve the security reliability of power supply simultaneously.
In order to improve safety, described line voltage detection module includes power management chip U2 and the second transformator
T2,2 feet that the M end of described power management chip U2 connects the first commutator D5 by the 16th diode D16 utilize D16's
Voltage stabilizing value and U2, complete the detection to line voltage, and the positive pole of the 16th diode D16 is connected with power management chip U2,
The 1 foot ground connection GND of the first commutator D5,4 feet of the first commutator D5 and 3 feet connect the both positive and negative polarity of civil power, described power supply respectively
The D end of managing chip U2 connects 2 feet of the second transformator T2, and 1 foot of the second transformator T2 connects the tenth by the 3rd inductance L3
The negative pole of six diode D16,8 feet of the second transformator T2 connect the G foot of field effect transistor Q1 by the 3rd diode D3, and described the
7 feet of two transformator T2 connect the IN foot of cell charge protection chip U3, cell charge protection core by the 12nd diode D12
The OUT foot of sheet U3 connects lithium battery anode, and the IN foot of cell charge protection chip U3 connects the also by the 6th electrochemical capacitor CE6
9 feet of two transformator T2,7 feet of described second transformator T2 connect the positive pole of the second diode (D2), the second diode D2's
Negative pole connects the G end of the second field effect transistor Q4, be parallel with between the G end of the second field effect transistor Q4 and ground GND the 9th electric capacity C9 and
Tenth resistance R10.Utilize lithium battery charging circuit to employ highly reliable discharge and recharge chip U3, lithium battery carried out overcharge,
The perfect protection of overdischarge.
In order to reduce volume and improve work efficiency, the model of described power management chip U2 is TOP258PN, and electricity
The M end of source control chip U2 and the positive pole of the 16th diode D16 connect, the negative pole of the 16th diode D16 and the first rectification
2 feet of device D5 connect, and the C foot of S1, S2, S3, S4 of power management chip U2 ground connection GND, power management chip U2 respectively connects
3 feet of photoelectrical coupler U4,4 feet of photoelectrical coupler U4 connect the negative pole of the 7th diode D7, the positive pole of the 7th diode D7
Connecting 4 feet of the second transformator T2,1 foot of photoelectrical coupler U4 connects the 12nd diode D12's by the 13rd resistance R13
Negative pole, the positive pole of the 12nd diode D12 connects 7 feet of the second transformator T2, and 2 feet of photoelectrical coupler U4 connect voltage stabilizing two pole
The positive pole of pipe ZD1, the negative pole of Zener diode ZD1 connects 9 feet of the second transformator T2,2 feet of photoelectrical coupler U4 and second
The colelctor electrode of audion Q2 connects, and the base stage of the second audion Q2 passes through the 21st resistance R21 ground connection GND, the second audion
It is parallel with the first resistance R1 and the 11st resistance R11, the emitter stage of the second audion Q2 between the emitter stage of Q2 and power supply ground GND
With connection has the 12nd electric capacity C12 between base stage；Use D16+U2 circuit simultaneously, complete line voltage is detected, it is ensured that not
Less than starting emergency lighting during 0.6 times of rated voltage, when higher than 0.85 times of rated voltage, recover normal illumination, due to traditional
Civil power voltage identification of meeting an urgent need is to gather signal with common Industrial Frequency Transformer isolation, and bulking value is big, and efficiency is low.
In order to make state the most very clear, 7 feet at the second transformator T2 are also associated with by LED modules with different colors conduct
The instruction control circuit of indicative function.
The LED that this utility model provides drives control circuit, uses the circuit such as Q1, when normal illumination main output LED and
Emergency lighting LED works simultaneously, makes full use of LED, reduces Material Cost.
Accompanying drawing explanation
Fig. 1 is the schematic block circuit diagram that provided in the present embodiment, a kind of LED drives control circuit；
Fig. 2 is that provided in the present embodiment, a kind of LED drives the circuit theory diagrams of general lighting in control circuit；
Fig. 3 is that provided in the present embodiment, a kind of LED drives the circuit theory diagrams of emergency lighting in control circuit；
Fig. 4 is the circuit theory diagrams that provided in the present embodiment, a kind of LED indicates control circuit in driving control circuit.
In figure: civil power 1, line voltage detection module 2, LED module the 3, first LED group 3-1, the second LED group 3-2,
Drive module 4, lithium battery 5, ∏ type filter circuit 6, charge protector 7, instruction control circuit 8.
Detailed description of the invention
With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings.
Embodiment:
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of LED provided in the present embodiment drives control circuit, including civil power 1, city
Piezoelectric voltage detection module 2 and LED module 3, described LED module 3 includes first be made up of more than one LED connection in series-parallel
LED group 3-1 and the second LED group 3-2 being made up of more than one LED parallel connection, the first described LED group 3-1 and
Connect same to the first LED group 3-1 and the second LED group 3-2 between two LED groups 3-2 when having the first field effect transistor Q1 conducting
In time, light as normal illumination, and when emergency rating, the first field effect transistor Q1 cuts off the first LED group 3-1, and opens simultaneously
The first field effect transistor Q1 and second field effect transistor Q4 of the second LED group 3-2, described civil power 1 is lighted after two field effect transistor Q4
It is connected with line voltage detection module 2, the G end of output connection first field effect transistor Q1 of line voltage detection module 2, first
The S end of effect pipe Q1 connects the positive pole of the second LED group 3-2, and the D end of the first field effect transistor Q1 connects the first LED group 3-1
Negative pole, on line voltage detection module 2 also by charge protector 7 connect have when civil power 1 normally works electricity to lithium
Pond 5 is charged；The lithium battery 5 that the second LED group 3-2 is powered, the S of the second field effect transistor Q4 is given when civil power 1 power supply is too low
Foot connects feeder ear 1 foot of lithium battery 5, and the D foot of the second field effect transistor Q4 connects the positive pole of the second LED group 3-2, second effect
The G end of pipe Q4 should connect line voltage detection module 2 by the second diode D2, described civil power 1 is by switch SW and driving
Dynamic model block 4 connects the positive pole of the first LED group 3-1；Using the circuit such as Q1, when normal illumination, general lighting exports LED and answers
Anxious illumination LED works simultaneously, makes full use of LED, reduces Material Cost；Use power lithium battery simultaneously, meet-
The illumination application of 20 to 60 degrees Celsius, when providing the emergent output identical with Ni-MH battery with lead-acid battery, reduces greatly
Drive the volume and weight of power supply；Emergency power supply input is provided with on-off control port, the opening and closing to lamp lighting
Control flexibly, can automatically detect and start again simultaneously emergent output when municipal power failure.
In order to make circuit simpler, described driving module 3 includes commutator DR1, ∏ type filter circuit 6, power drives
Chip U1 and the first transformator T1；The model of described power drives chip U1 is CL6234, wherein: described commutator DR1
Two inputs by inductance L1 and control switch SW and connect the both positive and negative polarity of civil power 1, outfan of commutator DR1 is even
Connecing inductance and the connection end of an electric capacity in ∏ type filter circuit 6, in ∏ type filter circuit 6, inductance connects with the connection end of another electric capacity
Connecing the D end of power drives chip U1, the CS end of described power drives chip U1 connects the first transformation by two resistance in parallel
1 foot of device T1,2 feet of the first transformator T1 connect the vdd terminal of power drives chip U1, and the vdd terminal of power drives chip U1 is also
By connecting the D end of power drives chip U1 after two resistance of series connection, 8 feet of the first transformator T1 connect two parallel diodes
Positive terminal, the negative pole end of two parallel diodes connects the positive terminal of the first LED group, at the positive terminal of the first LED group
And it is also associated with the 3rd electrochemical capacitor CE3 between ground GND.
In order to improve safety, described line voltage detection module 2 includes power management chip U2 and the second transformator
T2, the M end of described power management chip U2 connects 2 feet of the first commutator D5, and the tenth by the 16th diode D16
The positive pole of six diode D16 is connected with power management chip U2 and utilizes the voltage stabilizing value of D16 and U2 to complete the detection to line voltage,
The 1 foot ground connection GND of the first commutator D5,4 feet of the first commutator D5 and 3 feet connect the both positive and negative polarity of civil power 1, described power supply respectively
The D end of managing chip U2 connects 2 feet of the second transformator T2, and 1 foot of the second transformator T2 connects the tenth by the 3rd inductance L3
The negative pole of six diode D16,8 feet of the second transformator T2 connect the G foot of field effect transistor Q1 by the 3rd diode D3, and described the
7 feet of two transformator T2 connect the IN foot of cell charge protection chip U3, cell charge protection core by the 12nd diode D12
The OUT foot of sheet U3 connects lithium battery 5 positive pole, and the IN foot of cell charge protection chip U3 connects also by the 6th electrochemical capacitor CE6
9 feet of the second transformator T2,7 feet of described second transformator T2 connect the positive pole of the second diode D2, the second diode D2's
Negative pole connects the G end of the second field effect transistor Q4, be parallel with between the G end of the second field effect transistor Q4 and ground GND the 9th electric capacity C9 and
Tenth resistance R10.
In order to improve safety, the model of described power management chip U2 is TOP258PN, and power management chip U2
M end and the positive pole of the 16th diode D16 connect, the 2 feet companies of the negative pole of the 16th diode D16 and the first commutator D5
Connecing, the C foot of S1, S2, S3, S4 of power management chip U2 ground connection GND, power management chip U2 respectively connects photoelectrical coupler U4
3 feet, photoelectrical coupler U4 4 feet connect the 7th diode D7 negative pole, the positive pole of the 7th diode D7 connects the second transformation
4 feet of device T2,1 foot of photoelectrical coupler U4 by the 13rd resistance R13 connect the 12nd diode D12 negative pole, the 12nd
The positive pole of diode D12 connects 7 feet of the second transformator T2, and 2 feet of photoelectrical coupler U4 are just connecting Zener diode ZD1
Pole, the negative pole of Zener diode ZD1 connects 9 feet of the second transformator T2,2 feet of photoelectrical coupler U4 and the second audion Q2's
Colelctor electrode connects, and the base stage of the second audion Q2 passes through the 21st resistance R21 ground connection GND, the emitter stage of the second audion Q2
And it is parallel with the first resistance R1 and the 11st resistance R11, between emitter stage and the base stage of the second audion Q2 between power supply ground GND
Connect and have the 12nd electric capacity C12.
In order to make state the most very clear, 7 feet at the second transformator T2 are also associated with by LED modules with different colors conduct
The instruction control circuit 8 of indicative function；It is illustrated in figure 4 concrete circuit structure, by using green LED lamp that charging is referred to
Showing, red emergent output instruction, state is the most very clear.
The operation principle of the present embodiment is: when civil power 1 normally works, by driving commutator DR1, the ∏ in module 3
The stable voltage of output is given the first LED group 3-1 by type filter circuit 6, power drives chip U1 and the first transformator T1, makes the
One LED group 3-1 normally works, now still can be by the voltage after the first commutator DB1 rectification as the tenth due to civil power 1
The cathode voltage of six diode D16, and the positive pole higher than the 16th diode D16, the most now the 16th diode D16 cuts
Only, causing power management chip U2 not work, now the voltage of civil power 1 passes through the second transformator T2 again through the 12nd diode
It is charged to after flowing into cell charge protection chip U3 after D12 lithium battery B1；Cell charge protection chip in charging process
Overcharging and crossing of lithium battery 5 is put into row in real time monitoring by U3, thus play the effect of being effectively protected, simultaneously the second transformator T2
Voltage also can flow into the G foot of field effect transistor Q1 by the 3rd diode D3, and now the G foot voltage of field effect transistor Q1 is higher than S foot
Voltage so that field effect transistor Q1 turns on, is equivalent to switch Guan Bi, now makes the D foot of field effect transistor Q1 connect with S foot, now
The voltage flowing through the first LED group 3-1 also flows through the second LED group 3-2；Make the first LED group 3-1 and the second LED group
3-2 electricity simultaneously is bright, and uses as general lighting；The once spread of voltage of civil power 1, or time too low, on general lighting
Driving module 3 not work, cause the first LED group 3-1 no-voltage to stop, now the cathode voltage of the 16th diode D16 is high
In cathode voltage so that the conducting of the 16th diode D16, trigger power management chip U2 work, transmit a signal to second
Transformator U2, and now the first transformator U1 is due to spread of voltage or power-off, causes not working, and now causes the first LED
Group 3-1 positive pole no-voltage, thus cause the first field effect transistor Q1 cut-off to disconnect and the first LED group 3-1, and now lithium battery 5
Work；As emergency power supply, power to the second field effect transistor Q4 so that the second field effect transistor Q4 conducting is opened, now electric current stream
Through the second LED group 3-2 so that the second LED group is lighted, and uses as emergency lighting, make this by the design of said structure
Circuit completes to detect line voltage, it is ensured that start emergency lighting when being not less than 0.6 times of rated voltage, so that integrated circuit
Structure is simpler, and components and parts select less, thus reduce cost, and lithium battery charging circuit employs highly reliable charge and discharge
Electrical chip U3, when normal illumination, carries out overcharge to lithium battery, and the perfect protection of overdischarge makes integrated circuit safer.
This utility model has the advantage that 1, uses power lithium battery, and meeting the illumination at-20 to 60 degrees Celsius should
With, when providing the emergent output identical with Ni-MH battery with lead-acid battery, greatly reduce volume and the weight driving power supply
Amount.
2, main output uses power supply chip U1+ the first transformator T1, greatly reduces circuit and transformator complexity
And Material Cost, improve the security reliability of power supply simultaneously.
3, use D16+U2 circuit, complete line voltage is detected, it is ensured that starting when being not less than 0.6 times of rated voltage should
Anxious illumination, is being to recover normal illumination higher than 0.85 times of rated voltage.
4, emergency power supply input is provided with on-off control port, and the opening and closing to lamp lighting control flexibly,
Can automatically detect and start again simultaneously emergent output when municipal power failure.
5, using the circuit such as Q1, when normal illumination, main output LED and emergency lighting LED works simultaneously, carries out LED
Make full use of, reduce Material Cost.
6, lithium battery charging circuit employs highly reliable cell charge protection chip U3, and lithium battery is carried out overcharge,
The perfect protection of overdischarge；And providing overvoltage to internal cell, stream, under-voltage excessively, the defencive function that excess temperature is perfect.
7, using green to charging instruction, redness is emergent exports instruction, and state is the most very clear.
Claims (5)
1. LED drives a control circuit, including civil power (1), line voltage detection module (2) and LED module (3), described
LED module (3) includes the first LED group (3-1) of being made up of more than one LED connection in series-parallel and by more than one LED also
The second LED group (3-2) that connection is constituted, is characterized in that: the first described LED group (3-1) and the second LED group (3-2) it
Between connect when having the first field effect transistor (Q1) to turn on the first LED group (3-1) and the second LED group (3-2) lighted work simultaneously
For normal illumination, when emergency rating, the first field effect transistor (Q1) cuts off the first LED group (3-1), and opens second simultaneously
The first field effect transistor (Q1) and the second field effect transistor (Q4), the described city of the second LED group (3-2) is lighted after effect pipe (Q4)
Electricity (1) is connected with line voltage detection module (2), and the output of line voltage detection module (2) connects the first field effect transistor (Q1)
G end, the S end of the first field effect transistor (Q1) connects the positive pole of the second LED group (3-2), and the D end of the first field effect transistor (Q1)
Connecting the negative pole of the first LED group (3-1), connecting also by charge protector (7) on line voltage detection module (2) has
It is charged to lithium battery (5) when civil power (1) normally work；The second LED group (3-2) is given when civil power (1) power supply is too low
The lithium battery (5) of power supply, the S foot of the second field effect transistor (Q4) connects feeder ear 1 foot of lithium battery (5), the second field effect transistor
(Q4) D foot connects the positive pole of the second LED group (3-2), and the G end of the second field effect transistor (Q4) is by the second diode (D2) even
Connecing line voltage detection module (2), described civil power (1) is by switch (SW) and drives module (4) to connect the first LED group
(3-1) positive pole.
LED the most according to claim 1 drives control circuit, it is characterized in that: described driving module (4) includes commutator
(DR1), ∏ type filter circuit (6), power drives chip (U1) and the first transformator (T1)；The type of described driving chip (U1)
Number it is CL6234, wherein: two inputs of described commutator (DR1) are by inductance L1 and control switch (SW) and connect city
The both positive and negative polarity of electricity (1), an outfan of commutator (DR1) connects inductance and the connection of an electric capacity in ∏ type filter circuit (6)
End, in ∏ type filter circuit (6), the connection end of inductance and another electric capacity connects the D end of power drives chip (U1), described power supply
The CS end of driving chip (U1) connects 1 foot of the first transformator (T1), the 2 of the first transformator (T1) by two resistance in parallel
Foot connects the vdd terminal of power drives chip (U1), and the vdd terminal of power drives chip (U1) connects also by after two resistance of series connection
The D end of power drives chip (U1), 8 feet of the first transformator (T1) connect the positive terminal of two parallel diodes, two parallel connections
The negative pole end of diode connects the positive terminal of the first LED group (3-1), on positive terminal and the ground of the first LED group (3-1)
(GND) the 3rd electrochemical capacitor (CE3) it is also associated with between.
LED the most according to claim 1 and 2 drives control circuit, it is characterized in that: described line voltage detection module
(2) including power management chip (U2) and the second transformator (T2), the M end of described power management chip (U2) passes through the 16th
Diode (D16) connects 2 feet of the first commutator (D5), and the positive pole of the 16th diode (D16) and power management chip
(U2) connecting, 1 foot ground connection (GND) of the first commutator (D5), 4 feet of the first commutator (D5) and 3 feet connect civil power (1) respectively
Both positive and negative polarity, the D end of described power management chip (U2) connects 2 feet of the second transformator (T2), 1 foot of the second transformator (T2)
Connected the negative pole of the 16th diode (D16) by the 3rd inductance (L3), 8 feet of the second transformator (T2) pass through the 3rd diode
(D3) connecting the G foot of the first field effect transistor (Q1), 7 feet of described second transformator (T2) are by the 12nd diode (D12) even
Connecing the IN foot of cell charge protection chip (U3), the OUT foot of cell charge protection chip (U3) connects lithium battery (5) positive pole, electricity
The IN foot in pond charge protection chip (U3) connects 9 feet of the second transformator (T2) also by the 6th electrochemical capacitor (CE6), and described
7 feet of two transformators (T2) connect the positive pole of the second diode (D2), and the negative pole of the second diode (D2) connects the second field effect
The G end of pipe (Q4), is parallel with the 9th electric capacity (C9) and the tenth resistance between G end and the ground (GND) of the second field effect transistor (Q4)
(R10).
LED the most according to claim 3 drives control circuit, it is characterized in that: the type of described power management chip (U2)
Number it is TOP258PN, and the positive pole of the M end of power management chip (U2) and the 16th diode (D16) connects, the 16th pole
The negative pole of pipe (D16) and 2 feet of the first commutator (D5) connect, S1, S2, S3, S4 of power management chip (U2) ground connection respectively
(GND), the C foot of power management chip (U2) connects 3 feet of photoelectrical coupler (U4), and 4 feet of photoelectrical coupler (U4) connect the
The negative pole of seven diodes (D7), the positive pole of the 7th diode (D7) connects 4 feet of the second transformator (T2), photoelectrical coupler (U4)
1 foot connect the negative pole of the 12nd diode (D12) by the 13rd resistance (R13), the positive pole of the 12nd diode (D12) is even
Connecing 7 feet of the second transformator (T2), 2 feet of photoelectrical coupler (U4) connect the positive pole of Zener diode (ZD1), Zener diode
(ZD1) negative pole connects 9 feet of the second transformator (T2), 2 feet of photoelectrical coupler (U4) and the current collection of the second audion (Q2)
Pole connects, and the base stage of the second audion (Q2) passes through the 21st resistance (R21) ground connection (GND), sending out of the second audion (Q2)
It is parallel with the first resistance (R1) and the 11st resistance (R11), the transmitting of the second audion (Q2) between emitter-base bandgap grading and power supply ground (GND)
Connect between pole and base stage and have the 12nd electric capacity (C12).
LED the most according to claim 4 drives control circuit, it is characterized in that: 7 feet at the second transformator (T2) are also connected with
Have by LED modules with different colors as the instruction control circuit (8) of indicative function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620769136.3U CN205812466U (en) | 2016-07-21 | 2016-07-21 | LED drives control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620769136.3U CN205812466U (en) | 2016-07-21 | 2016-07-21 | LED drives control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205812466U true CN205812466U (en) | 2016-12-14 |
Family
ID=57508556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620769136.3U Expired - Fee Related CN205812466U (en) | 2016-07-21 | 2016-07-21 | LED drives control circuit |
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| CN (1) | CN205812466U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107318195A (en) * | 2017-07-17 | 2017-11-03 | 韩超 | The centralized management circuit of emergency light in a kind of embedded illuminator |
| CN108282926A (en) * | 2018-03-02 | 2018-07-13 | 宁波永贸时代进出口有限公司 | A kind of LED luminous flames circuit for lamp, LED storm lantern and candle lamp |
| CN108571665A (en) * | 2017-03-07 | 2018-09-25 | B/E航空公司 | LED bulb and its operating method |
-
2016
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571665A (en) * | 2017-03-07 | 2018-09-25 | B/E航空公司 | LED bulb and its operating method |
| CN107318195A (en) * | 2017-07-17 | 2017-11-03 | 韩超 | The centralized management circuit of emergency light in a kind of embedded illuminator |
| CN108282926A (en) * | 2018-03-02 | 2018-07-13 | 宁波永贸时代进出口有限公司 | A kind of LED luminous flames circuit for lamp, LED storm lantern and candle lamp |
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| CF01 | Termination of patent right due to non-payment of annual fee |