CN207099372U - A kind of colour temperature chip of detection LED switch on wall and the circuit of application color temperature chip - Google Patents
A kind of colour temperature chip of detection LED switch on wall and the circuit of application color temperature chip Download PDFInfo
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Abstract
The utility model discloses a kind of colour temperature chip of detection LED switch on wall, 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 pins, CAP pins, GND pin, CS pins and N number of driving output pin D1, D2, D3, ... Dn, VDD pins are connected to CAP pins in chip internal by PMOS back to back structure, N number of driving output pin D1 of N number of output end connection chip of drive module, D2, D3, ... Dn, the utility model 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 multigroup selectable port in the drive output of chip, encapsulate a variety of driving tubes in chip, pressure voltage is had nothing in common with each other, to meet the needs of various different applications；This chip can realize multichannel drive control with the N number of LED string of drive connection (N is more than 2).
Description
Technical field
Phone structural technical field is the utility model is related to, specially a kind of colour temperature chip of detection LED switch on wall
And the circuit of application color temperature chip.
Background technology
LED applications are divided into two major classes of display and illumination.With the novel illumination that light emitting diode (LED) is light source, it is referred to as half
Conductor illuminates, and abbreviation LED illumination, the industry based on semiconductor lighting is referred to 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.At present, global LED production capacities to
China's transfer, the LED encapsulation and more than 60% LED applications in the whole world 50% or so are all carried out in China.China has turned into the whole world half
Conductor Lighting Industry region with fastest developing speed.
Different types of LED can send the light of different colours, as the improvement of people's living standards, being wanted to LED illumination
Also more and more higher is sought, 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 strip of multigroup different-colour and link together, by distant
The modes such as control, wall urban electric power switch realize one group or several groups LED break-make.Wall urban electric power switch uses because system cost is low
Method is simple, by the extensive welcome of 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 illuminator of colour temperature is adjusted by wall urban electric power switch, constant current drive part and colour temperature control section can be divided into, wherein detecting
The action of the on and off of wall urban electric power switch is crucial.
In Fig. 1 isolation LED drive system, whether detection V1 positions have positive pulse to judge K1 switch, K1 closures
When, constant current drive part meeting driving transformer gives LED to power, and V1 positions have the signal of the 50Hz after D1 halfwave rectifier；
When K1 disconnects, the 50Hz half-wave voltage signals of V1 positions disappear.
By detecting V1 positions 50Hz half-wave voltage signal, control section is it is known that K1 on off state, so as to realize
The regulation of colour temperature.
The shortcomings that prior art：A:Because AC input is AC signal, it is necessary to diode D1 isolates, and chip port CLK,
D1, D2 can not be high pressure resistant, and CLK ports need to connect divider resistance；D1, D2 can only control the power end of constant-current driven chip,
Due to D1, D2 pressure voltage problem, the scope of application is limited；In process of production if the divider resistance rosin joint of CLK ports
Open circuit, then colour temperature chip is directly burnt, and causes application system to repair, and can only change colour temperature chip, and cost wastes；B:Color
Warm chip output only has two-way, it is impossible to controls multipath LED constant current driver.
Utility model content
The purpose of this utility model is the deficiency according to prior art, there is provided a kind of colour temperature of detection LED switch on wall
Chip.
A kind of colour temperature chip of detection LED switch on wall, including power management module, chip logic control module, filtering
And detection of power loss module, drive module, the chip are also set up（N+4）Group pin, including VDD pins, CAP pins, GND draw
Pin, CS pins and N number of driving output pin D1, D2, D3 ... Dn, the VDD pins are leaned against in chip internal by PMOS
Back structure is connected to CAP pins, and the PMOS back to back structure includes the first PMOS and the second PMOS, and described first
The D poles connection VDD pins of PMOS, the first output end of the G poles connection power management module of first PMOS, described the
The S poles of one PMOS connect the S poles of the second PMOS, the D poles connection CAP pins of second PMOS, the 2nd PMOS
Second output end of the G poles connection power management module of pipe, the first input end B1 of the power management module are connected to VDD and drawn
Pin, the second input B2 of the power management module are connected to CAP pins, the application system of the CS pins connection chip exterior
Signal to be detected in system, the VDD pins pass through the first voltage-regulator diode and first resistor that are connected in parallel in chip internal
It is connected with GND pin, the CS pins pass through the second voltage-regulator diode and second resistance and GND that are connected in parallel in chip internal
Pin is connected, and the CS pins are connected with the first input end of filtering and detection of power loss module, and the CAP pins are in chip internal
It is connected with the second input of filtering and detection of power loss module, the CAP pins and the first input of chip logic control module
End connection, the filtering and the output end of detection of power loss module are connected with the second input of chip logic control module, described
The first input end of the output end of chip logic control module and drive module connects, and the of the CAP pins and drive module
Two inputs connect, N number of driving output pin D1, D2 of N number of output end of drive module connection chip, D3 ... Dn.
One kind as the utility model colour temperature chip is improved, it is described in chip, the D poles of the first PMOS and S poles it
Between be connected with the first diode turned on from D poles to S extreme directions, be connected between the D poles and S poles of second PMOS from D
The second diode that pole turns on to S extreme directions.
As the utility model colour temperature chip one kind improve, N number of driving output pin D1, D2 of chip, D3 ... Dn
In addition, be also additionally provided with 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.
One kind as the utility model colour temperature chip is improved, and the driving tube is in IGCT, metal-oxide-semiconductor or triode
It is at least one.
One kind as the utility model colour temperature chip is improved, when driving tube is metal-oxide-semiconductor, the D poles connection of N number of metal-oxide-semiconductor
N number of driving output pin Da1, Da2 of chip, Da3 ... Dan, the S poles ground connection of N number of metal-oxide-semiconductor, the G poles connection core of N number of metal-oxide-semiconductor
N number of output end of drive module in piece.
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
It is straight by the ac input ends of a switch on wall K1 connection rectifier bridge stacks, the rectifier bridge stack with N number of LED light group, electric main
Stream output end also includes above-mentioned color by N number of constant-current driven chip and N number of N number of LED light group of transformer drive connection, the circuit
Warm chip, the VDD pins of the colour temperature chip are connected to switch on wall K1 open and-shut mode point, the colour temperature by a resistance R
The CS pins of chip and VDD pin short circuits, the CAP pins of the colour temperature chip are described by a capacitance connection to GND pin
GND pin is grounded, N number of driving output pin D1, D2 of the colour temperature chip, D3 ... Dn connects N number of constant-current driven chip respectively
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
It is straight by the ac input ends of a switch on wall K1 connection rectifier bridge stacks, the rectifier bridge stack with N number of LED light group, electric main
Stream output end also includes above-mentioned color by N number of constant-current driven chip and N number of N number of LED light group of transformer drive connection, the circuit
Warm chip, the VDD pins of the colour temperature chip are connected to the DC output end positive pole of rectifier bridge stack, the colour temperature by a resistance
The CAP pins of chip and VDD pin short circuits, the CS pins of the colour temperature chip are 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 connects N respectively
The vdd terminal of individual 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, electric capacity C1~C4, diode D11 and inductance L11, in addition to the colour temperature chip described in any of the above-described, wherein, exchange city
The ac input end of rectifier bridge stack is electrically connected to, the DC output end positive pole of rectifier bridge stack is connected to constant current by resistance R4 and driven
The vdd terminal of chip, is connected with resistance R1 between the CS ends and GND ends of constant-current driven chip, the ROVP ends of constant-current driven chip with
Resistance R2 is connected between GND ends, be provided between the vdd terminal of constant-current driven chip and GND ends the resistance R3 that is mutually in parallel and
Electric capacity C2, the DC output end negative pole of the GND ends connection rectifier bridge stack of constant-current driven chip are simultaneously grounded, and the direct current of rectifier bridge stack is defeated
Go out between proper pole and negative pole to be connected with electric capacity C1, the Drain ends of constant-current driven chip pass through diode D11 connection rectifier bridge stacks
DC output end positive pole, the Drain ends of constant-current driven chip pass through the GND pin of inductance L11 connection colour temperature chips, rectifier bridge
The DC output end positive pole of heap is connected to the VDD pins of colour temperature chip by resistance R5, and the Drain ends of constant-current driven chip pass through
Resistance R6 is connected to the CS pins of colour temperature chip, and resistance R7, rectifier bridge are connected between the CS pins and GND pin of colour temperature chip
The resistance R8 and electric capacity C3 being arranged in parallel, colour temperature are connected between the DC output end positive pole of heap and the GND pin of colour temperature chip
The CAP pins of chip are connected to GND pin by electric capacity C4, and the DC output end positive pole of rectifier bridge stack is N number of with colour temperature chip
N number of LED string is parallel between driving output pin Da1, Da2 ... Dan.
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, electric capacity C1~C4, diode D11 and inductance L11, in addition to 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 positive pole 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 ROVP ends and GND ends of constant-current driven chip between the CS ends and GND ends of constant-current driven chip
Resistance R2 is connected with, the resistance R3 and electric capacity C2 being mutually in parallel are provided between the vdd terminal of constant-current driven chip and GND ends, it is permanent
Flow driving chip GND ends by after an inductance L11 between N number of driving output pin Da1, Da2 ... Dan of colour temperature chip simultaneously
N number of LED string is associated with, electric capacity C1 is connected between the DC output end positive pole and negative pole of rectifier bridge stack, constant-current driven chip
Drain ends connect the DC output end positive pole of rectifier bridge stack, and the Drain ends of constant-current driven chip pass through resistance R5 connection colour temperature cores
The VDD pins of piece, the GND ends of constant-current driven chip are connected to the CS pins of colour temperature chip, the CS of colour temperature chip by resistance R6
Resistance R7 is connected between pin and GND pin, is connected with and is arranged in parallel between the GND pin of N number of LED string and colour temperature chip
Resistance R8 and electric capacity C3, the CAP pins of colour temperature chip are connected to GND pin by electric capacity C4, and the GND pin of colour temperature chip connects
Connect the DC output end negative pole of rectifier bridge stack and be grounded.
Compared with prior art, the beneficial effects of the utility model are：The utility model subtracts in original application system
Lack the resistance of chip periphery, diode, capacitance component, save system application cost；This chip can be used for a variety of isolation
Or in non-isolated different application scheme, breach the application limitation of original scheme；This chip utilizes and detects CS ends at one section
High level is whether there is in time, to realize detection switch on wall state；Preferably, there is multigroup may be selected in the drive output of chip
Port, a variety of 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 the N number of LED string of drive connection（N is more than 2）, realize multichannel drive control.
Brief description of the drawings
Fig. 1 is the circuit diagram of the wall urban electric power switch detection of the isolation LED drive system of prior art.
Fig. 2 is the circuit block diagram of the embodiment one of the utility model colour temperature chip.
Fig. 3 is the local circuit block diagram of the embodiment two of the utility model colour temperature chip.
Fig. 4 is the circuit diagram of implementation three.
Fig. 5 is the circuit diagram of implementation four.
Fig. 6 is the circuit diagram of implementation five.
Fig. 7 is the circuit diagram of implementation six.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Referring to Fig. 2, embodiment one is a kind of colour temperature chip of detection LED switch on wall, the dotted line frame in Fig. 2 represents
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 are also set up（N+4）Group pin, including VDD pins, CAP pins, GND pin, CS pins and
N number of driving output pin D1, D2, D3 ... Dn, the VDD pins are connected in chip internal by PMOS back to back structure
CAP pins, the PMOS back to back structure include the first PMOS P1 and the second PMOS P2, the first PMOS P1's
D poles connection VDD pins, the first output terminals A 1 of the G poles connection power management module 10 of the first PMOS P1, described first
PMOS P1 the second PMOS P2 of S poles connection S poles, the D poles connection CAP pins of the second PMOS P2, described second
Second output terminals A 2 of PMOS P2 G poles connection power management module 10, the first input end of the power management module 10
B1 is connected to VDD pins, and the second input B2 of the power management module 10 is connected to CAP pins, the CS pins connection
Signal to be detected in the application system of colour temperature chip exterior（It is discussed in detail in follow-up circuit embodiments）, it is described
VDD pins are connected in chip internal by the first voltage-regulator diode D3 and first resistor R3 being connected in parallel with GND pin, described
GND pin is connected in chip internal by the second voltage-regulator diode D4 and second resistance R4 being connected in parallel with CS pins, described
CS pins are connected with the first input end of filtering and detection of power loss module 12, and the CAP pins are in chip internal with filtering and falling
The second input connection of electro-detection module 12, the CAP pins are connected with the first input end of chip logic control module 11,
The filtering and the output end of detection of power loss module 12 are connected with the second input of chip logic control module 11, the chip
The output end of Logic control module 11 is connected with the first input end of drive module 13, the CAP pins and drive module 13
Second input connects, N number of driving output pin D1, D2 of N number of output end of drive module connection chip, D3 ... Dn.
A kind of embodiment two of the colour temperature chip of detection LED switch on wall, its structure be with the difference of embodiment one,
N number of driving output pin D1, D2 of chip, D3 ... N number of driving output pin is also additionally provided with beyond Dn, on chip
Da1, Da2, Da3 ... Dan, it is described it is N number of driving output pin Da1, Da2, Da3..Dan pass through N number of driving tube connection driving mould
N number of output end of block, the driving tube are at least one of IGCT, metal-oxide-semiconductor or triode, in embodiment three, are preferably adopted
With metal-oxide-semiconductor, as shown in figure 3, N number of output end of the G poles connection drive module 13 of wherein N number of metal-oxide-semiconductor, the S poles of N number of metal-oxide-semiconductor connect
Connect and be commonly connected to GND pin, the N number of driving output pin Da1, Da2 of the D poles of N number of metal-oxide-semiconductor connection, Da3 ... Dan, can
With the high lamp string of the resistance to pressure request of drive connection.
Principle Analysis： A:Due to being integrated with voltage-regulator diode (vdd terminal D3, CS ends are D4), resistance in chip
(R3, R4), K1 closures voltage at the VDD pins are timing, chip internal electric resistance partial pressure, and the voltage-regulator diode D3 being internally integrated is anti-
To conducting（I.e. when vdd voltage is higher than the clamped voltages of voltage-regulator diode D3）When, voltage-regulator diode D3 is in breakdown conditions, for embedding
Position VDD voltage, prevents high pressure from burning chip；When voltage is bears at VDD pins, the integrated voltage-regulator diode D3 of chip internal
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
Disconnect, VDD pulls down to GND by being internally integrated resistance.
B:Because VDD pins and CAP pins realize Charge Management, K1 closures, when VDD electricity by PMOS back to back structure
When pressure is higher than certain voltage, A1, A2 conducting, vdd terminal charge to the external capacitor C at CAP ends；When vdd voltage is less than certain voltage
When, there are two back biased diodes in A1, A2 cut-off, A1, A2 itself, prevent CAP from being leaked electricity to VDD, now by CAP ends external capacitor
C gives chip internal module for power supply；When K1 disconnects, chip internal module for power supply is given by CAP ends external capacitor.
C:There is pull down resistor R4 at CS ends, and by filtering the whether lower electricity of detection chip, according to various application needs, CS ends are optional
Selecting property is connected to vdd terminal；CS ends occur if any high level, then it is assumed that K1 is closure state；If in the certain time of CS ends
There is not 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 CS ends, driven 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 the isolation of colour temperature chip described in a kind of 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 stacks
Ac input end, the rectifier bridge stack DC output end is N number of by N number of constant-current driven chip and N number of transformer drive connection
LED light group（It is prior art, and attachment structure and operation principle will not be described here）, in addition to the colour temperature described in embodiment one
Chip, the VDD pins of the colour temperature chip are connected to switch on wall K1 open and-shut mode point, the colour temperature core by a resistance R1
The CS pins of piece and VDD pin short circuits, the CAP pins of the colour temperature chip are connected to GND pin by an electric capacity C1, described
GND pin is grounded, N number of driving output pin D1, D2 of the colour temperature chip, D3 ... Dn connects N number of constant-current driven chip respectively
Vdd terminal, this circuit and prior art（Fig. 1）Compare, eliminate isolating diode D1, VDD divider resistance, and prior art is only
Two-way drive control can be realized, and this circuit can realize multi-channel control.
Example IV is crystal drive circuit, such as Fig. 5 before the isolation of colour temperature chip described in a kind of application implementation one, itself and embodiment three
Difference be that the VDD pins of the colour temperature chip are connected to the DC output end positive pole of rectifier bridge stack, institute by a resistance R
The CAP pins and VDD pin short circuits, the CS pins of the colour temperature chip for stating colour temperature chip are connected to wall by a resistance R and opened
Close K1 open and-shut mode point, 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 Drain ends of N number of constant-current driven chip connect N number of transformer；This circuit
With prior art（Fig. 1）Compare, eliminate isolating diode D1, VDD divider resistance and CAP electric capacity, and prior art can only be real
Existing two-way drive control, and this circuit can realize multi-channel control.
Such as Fig. 6, embodiment five is that the non-isolated rear-guard of colour temperature chip described in a kind of 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 drive division in Fig. 6 and Fig. 7
Dotted line frame point below represents the colour temperature chip described in embodiment two, and non-isolated scheme is not resistant to due to the D1 of original scheme, D2
High pressure, it is impossible to realize this scheme；Non-isolated scheme has saved the quantity of constant-current driven chip（Fig. 6 and Fig. 7 only has one
Constant-current driven chip）, so greatly saved the cost of application system；Because colour temperature chip pin D1, D2``Dn ports need
Want the high pressure for the string of resistance to LED, therefore according to the number of LED string, select the driving tube of suitable pressure voltage with chip package one
Rise, (driving tube can be IGCT or metal-oxide-semiconductor etc. ``), therefore typically using described in embodiment two in non-isolated rear-guard scheme
Colour temperature chip.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (9)
1. a kind of colour temperature chip of detection LED switch on wall, it is characterised in that controlled including power management module, chip logic
Module, filtering and detection of power loss module, drive module, the chip are also set up（N+4）Group pin, including VDD pins, CAP draw
Pin, GND pin, CS pins and N number of driving output pin D1, D2, D3 ... Dn, the VDD pins pass through in chip internal
PMOS back to back structure is connected to CAP pins, and the PMOS back to back structure includes the first PMOS and the second PMOS,
The D poles connection VDD pins of first PMOS, the first output of the G poles connection power management module of first PMOS
End, the S poles of first PMOS connect the S poles of the second PMOS, and the D poles connection CAP pins of second PMOS are described
Second output end of the G poles connection power management module of the second PMOS, the first input end B1 of the power management module connect
VDD pins are connected to, the second input B2 of the power management module is connected to CAP pins, and the CS pins are connected outside chip
Signal to be detected in the application system in portion, the VDD pins pass through the first voltage-regulator diode for being connected in parallel in chip internal
It is connected with first resistor with GND pin, the CS pins pass through the second voltage-regulator diode being connected in parallel and in chip internal
Two resistance are connected with GND pin, and the CS pins are connected with the first input end of filtering and detection of power loss module, and the CAP draws
Pin is connected in chip internal with the second input of filtering and detection of power loss module, the CAP pins and chip logic control mould
The output end of the first input end connection of block, the filtering and detection of power loss module and the second input of chip logic control module
End connection, the output end of the chip logic control module and the first input end of drive module connect, and the CAP pins are with driving
The second input connection of dynamic model block, N number of driving output pin D1, D2 of N number of output end connection chip of the drive module,
D3、…Dn。
2. the colour temperature chip of detection LED switch on wall according to claim 1, it is characterised in that described in chip,
The first diode turned on from D poles to S extreme directions, the D of second PMOS are connected between the D poles of one PMOS and S poles
The second diode turned on from D poles to S extreme directions is connected between pole and S poles.
3. the colour temperature chip of detection LED switch on wall according to claim 1, it is characterised in that in N number of driving of chip
Output pin D1, D2, D3 ... be also additionally provided with beyond 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 2, it is characterised 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, it is characterised in that when driving tube is metal-oxide-semiconductor
When, D poles connection N number of driving output pin Da1, Da2 of chip of N number of metal-oxide-semiconductor, Da3 ... Dan, the S poles of N number of metal-oxide-semiconductor connect
Ground, the G poles of N number of metal-oxide-semiconductor connect N number of output end of drive module in chip.
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 switch on wall K1 connection rectifier bridge stacks, the rectifier bridge stack direct current
Output end passes through N number of constant-current driven chip and N number of N number of LED light group of transformer drive connection, it is characterised in that the circuit is also
Including the colour temperature chip described in claim 1, the VDD pins of the colour temperature chip are connected to switch on wall K1's by a resistance
Open and-shut mode point, CS pins and the VDD pin short circuits of the colour temperature chip, the CAP pins of the colour temperature chip pass through an electric capacity
Be connected to GND pin, the GND pin ground connection, N number of driving output pin D1, D2 of the colour temperature chip, D3 ... Dn distinguishes
Connect the vdd terminal of N number of constant-current driven chip.
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 stacks, the rectifier bridge stack direct current
Output end passes through N number of constant-current driven chip and N number of N number of LED light group of transformer drive connection, it is characterised in that the circuit is also
Including the colour temperature chip described in claim 1, the VDD pins of the colour temperature chip are connected to the straight of rectifier bridge stack by a resistance
Output head anode, CAP pins and the VDD pin short circuits of the colour temperature chip are flowed, the CS pins of the colour temperature chip pass through an electricity
Resistance is connected to switch on wall K1 open and-shut mode point, the GND pin ground connection, N number of driving output pin of the colour temperature chip
D1, D2, D3 ... Dn connects the vdd terminal of N number of constant-current driven chip respectively.
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, electric capacity C1~C4, diode D11 and inductance L11, it is characterised in that the color described in also including any one of claim 2~4
Warm chip, wherein, electric main is connected to the ac input end of rectifier bridge stack, and the DC output end positive pole of rectifier bridge stack passes through electricity
Resistance R4 is connected to the vdd terminal of constant-current driven chip, and resistance R1, constant current are connected between the CS ends and GND ends of constant-current driven chip
Resistance R2 is connected between the ROVP ends and GND ends of driving chip, is provided between the vdd terminal of constant-current driven chip and GND ends
The resistance R3 and electric capacity C2 being mutually in parallel, the DC output end negative pole of the GND ends connection rectifier bridge stack of constant-current driven chip simultaneously connect
Ground, is connected with electric capacity C1 between the DC output end positive pole and negative pole of rectifier bridge stack, the Drain ends of constant-current driven chip pass through two
The DC output end positive pole of pole pipe D11 connection rectifier bridge stacks, the Drain ends of constant-current driven chip pass through inductance L11 connection colour temperatures
The GND pin of chip, the DC output end positive pole of rectifier bridge stack are connected to the VDD pins of colour temperature chip, constant current by resistance R5
The Drain ends of driving chip are connected to the CS pins of colour temperature chip by resistance R6, the CS pins 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 positive pole of rectifier bridge stack and the GND pin of colour temperature chip
Resistance R8 and electric capacity C3, the CAP pins of colour temperature chip are connected to GND pin, the direct current output of rectifier bridge stack by electric capacity C4
Rectify and be parallel with N number of LED 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, electric capacity C1~C4, diode D11 and inductance L11, it is characterised in that the color described in also including any one of claim 2~4
Warm chip, wherein, electric main is connected to the ac input end of rectifier bridge stack, and the DC output end positive pole of rectifier bridge stack passes through electricity
Resistance R4 is connected to the vdd terminal of constant-current driven chip, and resistance R1, constant current are connected between the CS ends and GND ends of constant-current driven chip
Resistance R2 is connected between the ROVP ends and GND ends of driving chip, is provided between the vdd terminal of constant-current driven chip and GND ends
The resistance R3 and electric capacity C2 being mutually in parallel, the GND ends of constant-current driven chip pass through N number of drive after an inductance L11 with colour temperature chip
N number of LED string is parallel between dynamic output pin Da1, Da2 ... Dan, between the DC output end positive pole and negative pole of rectifier bridge stack
Electric capacity C1 is connected with, the Drain ends of constant-current driven chip connect the DC output end positive pole of rectifier bridge stack, constant-current driven chip
By the VDD pins of resistance R5 connection colour temperature chips, the GND ends of constant-current driven chip are connected to color by resistance R6 at Drain ends
The CS pins of warm chip, resistance R7, N number of LED string and colour temperature chip are connected between the CS pins and GND pin of colour temperature chip
GND pin between be connected with the resistance R8 and electric capacity C3 being arranged in parallel, the CAP pins of colour temperature chip are connected to by electric capacity C4
GND pin, the DC output end negative pole of the GND pin connection rectifier bridge stack of colour temperature chip are simultaneously grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720420458.1U CN207099372U (en) | 2017-04-20 | 2017-04-20 | A kind of colour temperature chip of detection LED switch on wall and the circuit of application color temperature chip |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720420458.1U CN207099372U (en) | 2017-04-20 | 2017-04-20 | A kind of colour temperature chip of detection LED switch on wall and the circuit of application color temperature chip |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106937449A (en) * | 2017-04-20 | 2017-07-07 | 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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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106937449A (en) * | 2017-04-20 | 2017-07-07 | 朱小安 | A kind of colour temperature chip of detection LED switch on wall and the circuit of application color temperature chip |
| CN106937449B (en) * | 2017-04-20 | 2019-05-03 | 朱小安 | It is a kind of detect LED switch on wall colour temperature chip and application color temperature chip circuit |
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Effective date of registration: 20190808 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 |