CN106937449B - It is a kind of detect LED switch on wall colour temperature chip and application color temperature chip circuit - Google Patents
It is a kind of detect LED switch on wall colour temperature chip and application color temperature chip circuit Download PDFInfo
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- CN106937449B CN106937449B CN201710262529.4A CN201710262529A CN106937449B CN 106937449 B CN106937449 B CN 106937449B CN 201710262529 A CN201710262529 A CN 201710262529A CN 106937449 B CN106937449 B CN 106937449B
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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]
Abstract
The invention discloses a kind of colour temperature chips for detecting LED switch on wall, it include power management module in chip, chip logic control module, filtering and detection of power loss module, drive module, chip also sets up (N+4) group pin, including VDD pin, CAP pin, GND pin, CS pin and N number of driving output pin D1, D2, D3, ... Dn, portion by PMOS tube back to back structure is connected to CAP pin to VDD pin in the chip, N number of driving output pin D1 of N number of output end connection chip of drive module, D2, D3, ... Dn, the present invention reduces the resistance of chip periphery in original application system, diode, capacitance component, system application cost is saved；This chip can be used in a variety of isolation or non-isolated different application scheme, breach the application limitation of original scheme；There is the selectable port of multiple groups in the drive output of chip, a variety of different driving tubes of encapsulation in chip, pressure voltage is had nothing in common with each other, to meet the needs of various different applications；This chip can be drivingly connected N number of LED light string (N is greater than 2), realize multichannel drive control.
Description
Technical field
The present invention relates to phone structural technical field, specially a kind of colour temperature chip for detecting LED switch on wall and answer
With the circuit of colour temperature chip.
Background technique
LED application is divided into display and illumination two major classes.It take light emitting diode (LED) as the novel illumination of light source, referred to as half
Conductor illumination, abbreviation LED illumination, the industry based on semiconductor lighting are known as LED illumination industry.At home industrial policy and
Under the dual pulling of international market demand, Chinese LED illumination product market is in accelerated development.Currently, whole world LED production capacity to
China's transfer, the LED encapsulation in the whole world 50% or so and 60% or more LED application are all carried out in China.China has become the whole world
The most fast region of semiconductor lighting industry development.
The light of the different types of capable of emitting different colours of LED, as the improvement of people's living standards, being wanted to LED illumination
Ask also higher and higher, the LED illumination System that can adjust colour temperature is becoming increasingly popular.
The color temperature adjusting system of LED illumination is usually to have the LED of multiple groups different-colour to go here and there and link together, by distant
The modes such as control, wall urban electric power switch realize the on-off of one group or several groups LED.Wall urban electric power switch is used since system cost is low
Method is simple, will be widely welcomed by client.
General LED illumination System is divided into isolation drive and non-isolated driving two schemes, is as shown in Figure 1 isolation drive,
The lighting system that colour temperature is adjusted by wall urban electric power switch, can be divided into constant current drive part and colour temperature control section, wherein detecting
The movement of the on and off of wall urban electric power switch is crucial.
In the isolation LED drive system of Fig. 1, whether the detection position V1 has positive pulse to judge the switch of K1, K1 closure
When, constant current drive part meeting driving transformer gives LED to power, and the position V1 has the signal of the 50Hz after D1 halfwave rectifier；
When K1 is disconnected, the 50Hz half-wave signa of the position V1 disappears.
By detect the position V1 50Hz half-wave signa, control section it is known that K1 switch state, to realize
The adjusting of colour temperature.
The shortcomings that prior art: A: since AC input is AC signal, needing diode D1 to be isolated, and chip port CLK,
D1, D2 can not be high pressure resistant, and the port CLK needs to connect divider resistance；D1, D2 can only control the power end of constant-current driven chip,
Due to D1, the pressure voltage problem of D2 limits the range of application；In process of production if the divider resistance rosin joint of the port CLK
Open circuit, then colour temperature chip is directly burnt, and causes application system that cannot repair, and can only replace colour temperature chip, cost waste；B: color
Warm chip output only has two-way, can not control multipath LED constant current driver.
Summary of the invention
It is an object of the invention to the deficiencies according to the prior art, provide a kind of colour temperature chip for detecting LED switch on wall.
A kind of colour temperature chip detecting LED switch on wall, including power management module, chip logic control module, filtering
And detection of power loss module, drive module, the chip also set up (N+4) group pin, including VDD pin, CAP pin, GND draw
Foot, CS pin and N number of driving output pin D1, D2, D3 ... Dn, the VDD pin in the chip portion by PMOS tube it is back-to-back
Structure is connected to CAP pin, and the PMOS tube back to back structure includes the first PMOS tube and the second PMOS tube, the first PMOS
The pole the D connection VDD pin of pipe, the first output end of the pole the G connection power management module of first PMOS tube, described first
The pole S of PMOS tube connects the pole S of the second PMOS tube, and the pole D of second PMOS tube connects CAP pin, second PMOS tube
The pole G connection power management module second output terminal, the first input end B1 of the power management module is connected to VDD and draws
Foot, the second input terminal B2 of the power management module are connected to CAP pin, the application of the CS pin connection chip exterior
Signal to be detected in system, portion passes through the first zener diode being connected in parallel and the first electricity to the VDD pin in the chip
Resistance connect with GND pin, the CS pin in the chip portion by the second zener diode for being connected in parallel and second resistance and
GND pin connection, the CS pin are connect with the first input end of filtering and detection of power loss module, and the CAP pin is in chip
Internal the second input terminal with filtering and detection of power loss module is connect, and the first of the CAP pin and chip logic control module
Input terminal connection, the filtering and the output end of detection of power loss module and the second input terminal of chip logic control module are connect,
The output end of the chip logic control module and the first input end of drive module connect, the CAP pin and drive module
The connection of the second input terminal, N number of output end connection N number of driving output pin D1, D2 of chip of the drive module, D3 ...
Dn。
It is described to connect in the chip, between the pole D and the pole S of the first PMOS tube as a kind of improvement of colour temperature chip of the present invention
It is connected to the first diode be connected from the pole D to S extreme direction, is connected with from D pole to S between the pole D and the pole S of second PMOS tube
Second diode of extreme direction conducting.
As a kind of improvement of colour temperature chip of the present invention, N number of driving output pin D1, D2 of chip, D3 ... Dn with
Outside, be also additionally provided on chip N number of driving output pin Da1, Da2, Da3 ... Dan, N number of driving output pin Da1,
Da2, Da3..Dan connect N number of output end of drive module by N number of driving tube.
As a kind of improvement of colour temperature chip of the present invention, the driving tube be in thyristor, metal-oxide-semiconductor or triode at least
It is a kind of.
As a kind of improvement of colour temperature chip of the present invention, when driving tube is metal-oxide-semiconductor, the pole D of N number of metal-oxide-semiconductor connects chip
N number of driving output pin Da1, Da2, Da3 ... Dan, N number of metal-oxide-semiconductor the pole S ground connection, N number of metal-oxide-semiconductor the pole G connection chip in
N number of output end of drive module.
Crystal drive circuit before a kind of isolation of application color temperature chip, including rectifier bridge stack, N number of constant-current driven chip, N number of transformer
With N number of LED light group, electric main passes through the ac input end of a switch on wall K1 connection rectifier bridge stack, and the rectifier bridge stack is straight
It flows output end and N number of LED light group is drivingly connected by N number of constant-current driven chip and N number of transformer, the circuit further includes above-mentioned color
Warm chip, the VDD pin of the colour temperature chip are connected to the open and-shut mode point of switch on wall K1, the colour temperature by a resistance R
The CS pin of chip and VDD pin are shorted, the CAP pin of the colour temperature chip by a capacitance connection to GND pin, it is described
GND pin ground connection, N number of driving output pin D1, D2 of the colour temperature chip, D3 ... Dn is separately connected N number of constant-current driven chip
Vdd terminal.
Crystal drive circuit before a kind of isolation of application color temperature chip, including rectifier bridge stack, N number of constant-current driven chip, N number of transformer
With N number of LED light group, electric main passes through the ac input end of a switch on wall K1 connection rectifier bridge stack, and the rectifier bridge stack is straight
It flows output end and N number of LED light group is drivingly connected by N number of constant-current driven chip and N number of transformer, the circuit further includes above-mentioned color
Warm chip, the VDD pin of the colour temperature chip are connected to the DC output end anode of rectifier bridge stack, the colour temperature by a resistance
The CAP pin and VDD pin of chip are shorted, and the CS pin of the colour temperature chip is connected to opening for switch on wall K1 by a resistance
Closed state point, GND pin ground connection, N number of driving output pin D1, D2 of the colour temperature chip, D3 ... Dn is separately connected N
The vdd terminal of a constant-current driven chip.
A kind of non-isolated rear-guard of application color temperature chip floating ground circuit, including rectifier bridge stack, constant-current driven chip, resistance R1
~R8, capacitor C1~C4, diode D11 and inductance L11, wherein electric main is connected to the ac input end of rectifier bridge stack, whole
The DC output end anode of stream bridge heap is connected to the vdd terminal of constant-current driven chip, the end CS of constant-current driven chip by resistance R4
It is connected with resistance R1 between the end GND, resistance R2, constant current driving are connected between the end ROVP and the end GND of constant-current driven chip
The resistance R3 and capacitor C2 being mutually in parallel, the end the GND connection of constant-current driven chip are provided between the vdd terminal and the end GND of chip
The DC output end cathode of rectifier bridge stack is simultaneously grounded, and is connected with capacitor between the DC output end positive electrode and negative electrode of rectifier bridge stack
C1, DC output end anode of the end Drain of constant-current driven chip by diode D11 connection rectifier bridge stack, constant current driving core
The end Drain of piece passes through the GND pin of inductance L11 connection colour temperature chip, and the DC output end anode of rectifier bridge stack passes through resistance
R5 is connected to the VDD pin of colour temperature chip, and the end Drain of constant-current driven chip is drawn by the CS that resistance R6 is connected to colour temperature chip
Foot is connected with resistance R7, the DC output end anode and colour temperature core of rectifier bridge stack between the CS pin and GND pin of colour temperature chip
The resistance R8 and capacitor C3 being arranged in parallel are connected between the GND pin of piece, the CAP pin of colour temperature chip is connected by capacitor C4
To GND pin, between the DC output end anode of rectifier bridge stack and N number of driving output pin Da1, Da2 ... Dan of colour temperature chip
It is parallel with N number of LED light string.
A kind of non-isolated rear-guard of application color temperature chip circuit, including rectifier bridge stack, constant-current driven chip, resistance R1 on the spot
~R8, capacitor C1~C4, diode D11 and inductance L11 further include above-mentioned colour temperature chip, wherein electric main is connected to whole
The ac input end of bridge heap is flowed, the DC output end anode of rectifier bridge stack is connected to the VDD of constant-current driven chip by resistance R4
End, is connected with resistance R1, between the end ROVP and the end GND of constant-current driven chip between the end CS and the end GND of constant-current driven chip
It is connected with resistance R2, the resistance R3 and capacitor C2 being mutually in parallel are provided between the vdd terminal and the end GND of constant-current driven chip, it is permanent
Flow the end GND of driving chip by after an inductance L11 between N number of driving output pin Da1, Da2 ... Dan of colour temperature chip simultaneously
It is associated with N number of LED light string, is connected with capacitor C1 between the DC output end positive electrode and negative electrode of rectifier bridge stack, constant-current driven chip
The end Drain connects the DC output end anode of rectifier bridge stack, and the end Drain of constant-current driven chip passes through resistance R5 connection colour temperature core
The VDD pin of piece, the end GND of constant-current driven chip are connected to the CS pin of colour temperature chip, the CS of colour temperature chip by resistance R6
It is connected with resistance R7 between pin and GND pin, is connected with and is arranged in parallel between N number of LED light string and the GND pin of colour temperature chip
Resistance R8 and capacitor C3, the CAP pin of colour temperature chip is connected to GND pin by capacitor C4, and the GND pin of colour temperature chip connects
It connects the DC output end cathode of rectifier bridge stack and is grounded.
Compared with prior art, the beneficial effects of the present invention are: the present invention reduces chip in original application system
The resistance of periphery, diode, capacitance component have saved system application cost；This chip can be used for a variety of isolation or non-isolated
Different application scheme on, breach the application limitation of original scheme；This chip has whithin a period of time using the detection end CS
Without high level, to realize detection switch on wall state；Preferably, there is the selectable port of multiple groups in the drive output of chip,
The a variety of different driving tubes of encapsulation in chip, pressure voltage is had nothing in common with each other, to meet the needs of various different applications；This chip can be with
It is drivingly connected N number of LED light string (N is greater than 2), realizes multichannel drive control.
Detailed description of the invention
Fig. 1 is the circuit diagram of the wall urban electric power switch detection of the isolation LED drive system of the prior art.
Fig. 2 is the circuit block diagram of the embodiment one of colour temperature chip of the present invention.
Fig. 3 is the local circuit block diagram of the embodiment two of colour temperature chip of the present invention.
Fig. 4 is the circuit diagram for implementing three.
Fig. 5 is the circuit diagram for implementing four.
Fig. 6 is the circuit diagram for implementing five.
Fig. 7 is the circuit diagram for implementing six.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 2, embodiment one is a kind of colour temperature chip for detecting LED switch on wall, the dotted line frame in Fig. 2 is represented
Colour temperature chip, include in chip power management module 10, chip logic control module 11, filtering and detection of power loss module 12,
Drive module 13, the colour temperature chip also set up (N+4) group pin, including VDD pin, CAP pin, GND pin, CS pin and
N number of driving output pin D1, D2, D3 ... Dn, portion is connected to the VDD pin by PMOS tube back to back structure in the chip
CAP pin, the PMOS tube back to back structure include the first PMOS tube P1 and the second PMOS tube P2, the first PMOS tube P1's
The pole D connection VDD pin, the first output terminals A 1 of the pole the G connection power management module 10 of the first PMOS tube P1, described first
The pole S of the second PMOS tube P2 of the pole S connection of PMOS tube P1, the pole the D connection CAP pin of the second PMOS tube P2, described second
The second output terminal A2 of the pole the G connection power management module 10 of PMOS tube P2, the first input of the power management module 10
End B1 is connected to VDD pin, and the second input terminal B2 of the power management module 10 is connected to CAP pin, the CS pin
Connect the signal to be detected (being discussed in detail in subsequent circuit embodiments) in the application system of colour temperature chip exterior, institute
Stating VDD pin, portion passes through the first zener diode D11 being connected in parallel in the chip and first resistor R11 is connect with GND pin,
Portion passes through the second zener diode D22 being connected in parallel and second resistance R22 to the GND pin in the chip and CS pin connects
It connects, the CS pin is connect with the first input end of filtering and detection of power loss module 12, CAP pin portion and filter in the chip
Involve the second input terminal connection of detection of power loss module 12, the first input of the CAP pin and chip logic control module 11
End connection, the filtering and the output end of detection of power loss module 12 and the second input terminal of chip logic control module 11 are connect,
The output end of the chip logic control module 11 is connect with the first input end of drive module 13, the CAP pin and driving
Second input terminal of module 13 connects, N number of driving output pin D1, D2 of N number of output end connection chip of the drive module,
D3、…Dn。
A kind of embodiment two for the colour temperature chip detecting LED switch on wall, structure and embodiment one the difference is that,
N number of driving output pin D1, D2 of chip, D3 ... N number of driving output pin is also additionally provided with other than Dn, on chip
Da1, Da2, Da3 ... Dan, described N number of driving output pin Da1, Da2, Da3..Dan by N number of driving tube connection driving mould
N number of output end of block, the driving tube are at least one of thyristor, metal-oxide-semiconductor or triode, in embodiment three, are preferably adopted
With metal-oxide-semiconductor, as shown in figure 3, wherein N number of output end of the pole the G connection drive module 13 of N number of metal-oxide-semiconductor, the pole S of N number of metal-oxide-semiconductor connects
Connect and be commonly connected to GND pin, the pole D of N number of metal-oxide-semiconductor connect N number of driving output pin Da1, Da2, Da3 ... Dan, can
To be drivingly connected the demanding lamp string of pressure resistance.
Principle Analysis: A: due to being integrated with zener diode (the vdd terminal end D11, CS is D22), resistance in chip
(R11, R22), K1 closure voltage at VDD pin is timing, chip interior electric resistance partial pressure, the zener diode D3 being internally integrated
When reverse-conducting (i.e. when vdd voltage is higher than the clamped voltage of zener diode D3), zener diode D3 is in breakdown conditions, is used for
The voltage of clamped VDD, prevents high pressure from burning chip；When voltage is negative at VDD pin, the integrated zener diode of chip interior
D3 forward conduction, pressure difference is only diode pressure difference, about 0.6V between vdd voltage and GND, and protection chip will not be burnt by negative pressure；
K1 is disconnected, and VDD pulls down to GND by being internally integrated resistance.
B: since VDD pin and CAP pin realize Charge Management, K1 closure, when VDD electricity by PMOS tube back to back structure
When pressure is higher than certain voltage, A1, A2 conducting, vdd terminal charge to the external capacitor C at the end CAP；When vdd voltage is lower than certain voltage
When, A1, A2 cut-off, there are two back biased diodes by A1, A2 itself, prevent CAP from leaking electricity to VDD, at this time by the end CAP external capacitor
C gives chip interior module for power supply；When K1 is disconnected, chip interior module for power supply is given by the end CAP external capacitor.
There is pull down resistor R22 at the end C:CS, and by the whether lower electricity of filtering detection chip, according to various application needs, the end CS can
It is optionally connected to vdd terminal；The end CS occurs if any high level, then it is assumed that K1 is closed state；If in the certain time of the end CS
Do not occur high level, then it is assumed that K1 is off-state；
D: the K1 on-off times that chip logic control module 11 is detected by the end CS drive according to the logical order set
Dynamic D1, D2 ... Dn, n are more than or equal to 2 and are integer.
Embodiment three is crystal drive circuit, such as Fig. 4 before a kind of isolation of colour temperature chip described in application implementation one, including rectifier bridge
Heap, N number of constant-current driven chip, N number of transformer and N number of LED light group, electric main pass through a switch on wall K1 connection rectifier bridge stack
Ac input end, the rectifier bridge stack DC output end is drivingly connected N number of by N number of constant-current driven chip and N number of transformer
LED light group (it is the prior art, and this will not be repeated here for connection structure and working principle), further includes colour temperature described in embodiment one
Chip, the VDD pin of the colour temperature chip are connected to the open and-shut mode point of switch on wall K1, the colour temperature core by a resistance R1
The CS pin and VDD pin of piece are shorted, and the CAP pin of the colour temperature chip is connected to GND pin by a capacitor C1, described
GND pin ground connection, N number of driving output pin D1, D2 of the colour temperature chip, D3 ... Dn is separately connected N number of constant-current driven chip
Vdd terminal, this circuit compared with the prior art (Fig. 1), eliminate isolating diode D1, VDD divider resistance, and the prior art only
It is able to achieve two-way drive control, and multi-channel control may be implemented in this circuit.
Example IV is crystal drive circuit, such as Fig. 5 before a kind of isolation of colour temperature chip described in application implementation one, with embodiment three
Difference be that the VDD pin of the colour temperature chip is connected to the DC output end anode of rectifier bridge stack, institute by a resistance R1
The CAP pin and VDD pin for stating colour temperature chip are shorted, and the CS pin of the colour temperature chip is connected to wall by a resistance R2 and opens
Close the open and-shut mode point of K1, GND pin ground connection, N number of driving output pin D1, D2 of the colour temperature chip, D3 ... Dn points
The vdd terminal of N number of constant-current driven chip is not connected, and the end Drain of N number of constant-current driven chip connects N number of transformer；This circuit
Compared with the prior art (Fig. 1), isolating diode D1, VDD divider resistance and CAP capacitor are eliminated, and the prior art can only be real
Existing two-way drive control, and multi-channel control may be implemented in this circuit.
Such as Fig. 6, embodiment five is that a kind of non-isolated rear-guard of colour temperature chip described in application implementation two floats circuit, such as Fig. 7,
Embodiment six is a kind of non-isolated rear-guard circuit on the spot of colour temperature chip described in application implementation two, constant current driving portion in Fig. 6 and Fig. 7
Point subsequent dotted line frame represents colour temperature chip described in embodiment two, and due to the D1 of original scheme, D2 is not resistant to non-isolated scheme
High pressure can not realize this scheme；Non-isolated scheme saved constant-current driven chip quantity (Fig. 6 and Fig. 7 only one
Constant-current driven chip), the cost of application system has greatly been saved in this way；Due to the port colour temperature chip pin D1, D2 ... Dn
The high pressure of resistance to LED light string is needed, therefore according to the number of LED light string, the driving tube of suitable pressure voltage and chip package is selected to exist
Together, (driving tube can be thyristor or metal-oxide-semiconductor etc..), therefore embodiment two is generally used in non-isolated rear-guard scheme
The colour temperature chip.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of colour temperature chip for detecting LED switch on wall, which is characterized in that controlled including power management module, chip logic
Module, filtering and detection of power loss module, drive module, the chip also set up (N+4) group pin, including VDD pin, CAP draw
Foot, GND pin, CS pin and N number of driving output pin D1, D2, D3 ... Dn, the VDD pin pass through PMOS in portion in the chip
Pipe back to back structure is connected to CAP pin, and the PMOS tube back to back structure includes the first PMOS tube and the second PMOS tube, described
The pole D of first PMOS tube connects VDD pin, the first output end of the pole the G connection power management module of first PMOS tube, institute
The pole S for stating the first PMOS tube connects the pole S of the second PMOS tube, and the pole D of second PMOS tube connects CAP pin, and described second
The second output terminal of the pole the G connection power management module of PMOS tube, the first input end B1 of the power management module are connected to
VDD pin, the second input terminal B2 of the power management module are connected to CAP pin, the CS pin connection chip exterior
Signal to be detected in application system, portion passes through the first zener diode for being connected in parallel and the to the VDD pin in the chip
One resistance is connect with GND pin, and portion passes through the second zener diode being connected in parallel and the second electricity to the CS pin in the chip
Resistance is connect with GND pin, and the CS pin is connect with the first input end of filtering and detection of power loss module, and the CAP pin exists
Chip interior is connect with the second input terminal of filtering and detection of power loss module, the CAP pin and chip logic control module
Second input terminal of first input end connection, the output end and chip logic control module of the filtering and detection of power loss module connects
It connects, the output end of the chip logic control module and the first input end of drive module connect, the CAP pin and driving mould
Second input terminal of block connects, N number of driving output pin D1, D2 of N number of output end connection chip of the drive module,
D3,…Dn；
Zener diode, resistance are integrated in the chip, closing the switch the voltage at VDD pin is timing, chip interior electricity
Resistance partial pressure, when the third zener diode reverse-conducting being internally integrated, third zener diode be in breakdown conditions, is used for clamped
The voltage of VDD, prevents high pressure from burning chip；When voltage is negative at VDD pin, the integrated third zener diode of chip interior
Forward conduction, pressure difference is only diode pressure difference between vdd voltage and GND, and protection chip will not be burnt by negative pressure；Switch disconnects,
VDD pulls down to GND by being internally integrated resistance.
2. the colour temperature chip of detection LED switch on wall according to claim 1, which is characterized in that it is described in the chip, the
The first diode be connected from the pole D to S extreme direction, the D of second PMOS tube are connected between the pole D of one PMOS tube and the pole S
The second diode be connected from the pole D to S extreme direction is connected between pole and the pole S.
3. the colour temperature chip of detection LED switch on wall according to claim 1, which is characterized in that in N number of driving of chip
Output pin D1, D2, D3 ... be also additionally provided with other than Dn, on chip N number of driving output pin Da1, Da2, Da3 ... Dan,
Described N number of driving output pin Da1, Da2, Da3..Dan connects N number of output end of drive module by N number of driving tube.
4. the colour temperature chip of detection LED switch on wall according to claim 3, which is characterized in that the driving tube is crystalline substance
At least one of brake tube, metal-oxide-semiconductor or triode.
5. the colour temperature chip of detection LED switch on wall according to claim 3, which is characterized in that when driving tube is metal-oxide-semiconductor
When, the pole D connection N number of driving output pin Da1, Da2 of chip of N number of metal-oxide-semiconductor, Da3 ... Dan, the pole the S ground connection of N number of metal-oxide-semiconductor,
N number of output end of drive module in the pole the G connection chip of N number of metal-oxide-semiconductor.
6. crystal drive circuit before a kind of isolation of application color temperature chip, including rectifier bridge stack, N number of constant-current driven chip, N number of transformer and
N number of LED light group, electric main pass through the ac input end of a connection rectifier bridge stack of switch on wall K 1, the rectifier bridge stack direct current
Output end is drivingly connected N number of LED light group by N number of constant-current driven chip and N number of transformer, which is characterized in that the circuit is also
Including colour temperature chip described in claim 1, the VDD pin of the colour temperature chip is connected to switch on wall K 1 by a resistance
Open and-shut mode point, the CS pin of the colour temperature chip and VDD pin be shorted, and the CAP pin of the colour temperature chip passes through an electricity
Appearance is connected to GND pin, the GND pin ground connection, N number of driving output pin D1, D2 of the colour temperature chip, D3 ... Dn points
The vdd terminal of N number of constant-current driven chip is not connected.
7. crystal drive circuit before a kind of isolation of application color temperature chip, including rectifier bridge stack, N number of constant-current driven chip, N number of transformer and
N number of LED light group, electric main pass through the ac input end of a switch on wall K1 connection rectifier bridge stack, the rectifier bridge stack direct current
Output end is drivingly connected N number of LED light group by N number of constant-current driven chip and N number of transformer, which is characterized in that the circuit is also
Including colour temperature chip described in claim 1, the VDD pin of the colour temperature chip is connected to the straight of rectifier bridge stack by a resistance
Output head anode is flowed, the CAP pin and VDD pin of the colour temperature chip are shorted, and the CS pin of the colour temperature chip passes through an electricity
Resistance is connected to the open and-shut mode point of switch on wall K 1, the GND pin ground connection, N number of driving output pin of the colour temperature chip
D1, D2, D3 ... Dn is separately connected the vdd terminal of N number of constant-current driven chip.
8. a kind of non-isolated rear-guard of application color temperature chip floating ground circuit, including rectifier bridge stack, constant-current driven chip, resistance R1~
R8, capacitor C1~C4, diode D11 and inductance L11, which is characterized in that further include the described in any item colors of claim 3~4
Warm chip, wherein electric main is connected to the ac input end of rectifier bridge stack, and the DC output end anode of rectifier bridge stack passes through electricity
Resistance R4 is connected to the vdd terminal of constant-current driven chip, is connected with resistance R1, constant current between the end CS and the end GND of constant-current driven chip
It is connected with resistance R2 between the end ROVP and the end GND of driving chip, is provided between the vdd terminal and the end GND of constant-current driven chip
The resistance R3 and capacitor C2 being mutually in parallel, the DC output end cathode of the end the GND connection rectifier bridge stack of constant-current driven chip simultaneously connect
Ground, capacitor C1 is connected between the DC output end positive electrode and negative electrode of rectifier bridge stack, and the end Drain of constant-current driven chip passes through two
The DC output end anode of pole pipe D11 connection rectifier bridge stack, the end Drain of constant-current driven chip pass through inductance L11 connection colour temperature
The GND pin of chip, the DC output end anode of rectifier bridge stack are connected to the VDD pin of colour temperature chip, constant current by resistance R5
The end Drain of driving chip is connected to the CS pin of colour temperature chip by resistance R6, the CS pin and GND pin of colour temperature chip it
Between be connected with resistance R7, be connected with and be arranged in parallel between the DC output end anode and the GND pin of colour temperature chip of rectifier bridge stack
Resistance R8 and capacitor C3, the CAP pin of colour temperature chip is connected to GND pin, the direct current output of rectifier bridge stack by capacitor C4
Rectify and is parallel with N number of LED light string between pole and N number of driving output pin Da1, Da2 ... Dan of colour temperature chip.
9. a kind of non-isolated rear-guard of application color temperature chip circuit on the spot, including rectifier bridge stack, constant-current driven chip, resistance R1~
R8, capacitor C1~C4, diode D11 and inductance L11, which is characterized in that further include the described in any item colors of claim 3~4
Warm chip, wherein electric main is connected to the ac input end of rectifier bridge stack, and the DC output end anode of rectifier bridge stack passes through electricity
Resistance R4 is connected to the vdd terminal of constant-current driven chip, is connected with resistance R1, constant current between the end CS and the end GND of constant-current driven chip
It is connected with resistance R2 between the end ROVP and the end GND of driving chip, is provided between the vdd terminal and the end GND of constant-current driven chip
The end GND of the resistance R3 and capacitor C2 being mutually in parallel, constant-current driven chip pass through N number of drive after an inductance L11 with colour temperature chip
N number of LED light string is parallel between dynamic output pin Da1, Da2 ... Dan, between the DC output end positive electrode and negative electrode of rectifier bridge stack
It is connected with capacitor C1, the DC output end of the end the Drain connection rectifier bridge stack of constant-current driven chip is positive, constant-current driven chip
The end Drain passes through the VDD pin of resistance R5 connection colour temperature chip, and the end GND of constant-current driven chip is connected to color by resistance R6
The CS pin of warm chip is connected with resistance R7, N number of LED light string and colour temperature chip between the CS pin and GND pin of colour temperature chip
GND pin between be connected with the resistance R8 and capacitor C3 being arranged in parallel, the CAP pin of colour temperature chip is connected to by capacitor C4
GND pin, the DC output end cathode of the GND pin connection rectifier bridge stack of colour temperature chip are simultaneously grounded.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710262529.4A CN106937449B (en) | 2017-04-20 | 2017-04-20 | It is a kind of detect LED switch on wall colour temperature chip and application color temperature chip circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710262529.4A CN106937449B (en) | 2017-04-20 | 2017-04-20 | It is a kind of detect LED switch on wall colour temperature chip and application color temperature chip circuit |
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| CN106937449A CN106937449A (en) | 2017-07-07 |
| CN106937449B true CN106937449B (en) | 2019-05-03 |
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| CN110312346A (en) * | 2019-07-25 | 2019-10-08 | 深圳市芯飞凌半导体有限公司 | LED drive chip and LED drive system |
| CN111083840A (en) * | 2019-12-25 | 2020-04-28 | 深圳市芯飞凌半导体有限公司 | LED drive circuit with color-adjusting switch |
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| CN207099372U (en) * | 2017-04-20 | 2018-03-13 | 朱小安 | A kind of colour temperature chip of detection LED switch on wall and the circuit of application color temperature chip |
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| CN201039534Y (en) * | 2007-05-09 | 2008-03-19 | 鹤山丽得电子实业有限公司 | A color temperature adjustable LED road lamp control circuit |
| TW201515513A (en) * | 2013-10-01 | 2015-04-16 | Beyond Innovation Tech Co Ltd | Load driving apparatus with current balance function |
| CN204090236U (en) * | 2014-08-27 | 2015-01-07 | 深圳市芯飞凌半导体有限公司 | LED switch color-temperature regulating controller and LED drive circuit |
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Effective date of registration: 20190809 Address after: 518000 Room 513, 5th Floor, Jinhui Ball Building, Langshan Second Road, Xili Street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Core Semiconductor Co., Ltd. Address before: 518000 Three 3C Buildings of Haiyin Great Wall, Nanshan District, Shenzhen City, Guangdong Province Patentee before: Zhu Xiaoan |
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