CN206559689U - A kind of LED switch detects circuit - Google Patents
A kind of LED switch detects circuit Download PDFInfo
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- CN206559689U CN206559689U CN201720227040.9U CN201720227040U CN206559689U CN 206559689 U CN206559689 U CN 206559689U CN 201720227040 U CN201720227040 U CN 201720227040U CN 206559689 U CN206559689 U CN 206559689U
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- constant
- led
- current driven
- colour temperature
- control module
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Abstract
Circuit is detected the utility model discloses a kind of LED switch, the LED switch detection circuit includes the N number of inductive reactance being connected with the CS ends of N number of constant-current driven module, the other end connection rectifier bridge output negative pole of N number of inductive reactance, N number of voltage signal on N number of inductive reactance is transferred to the CS ends that colour temperature detects control module, an electric capacity in parallel between the output cathode and output negative pole of the rectifier bridge, compared with prior art, the utility model has the advantages that：This circuit can be used for the LED drive system of isolation and non-isolated, simplify system schema, system cost is reduced, accuracy of detection and reliability is improved, the time of wall urban electric power switch is can adjust, improve user's switch experience, this circuit reaches the purpose whether detection urban electric power switch switchs, while if power interruption recovering in timing using the voltage detected on the inductive reactance of constant-current driven module, colour temperature detection control module has certain memory function, remains to work on.
Description
Technical field
The utility model is related to LED illumination device field, more particularly to a kind of LED switch detection circuit.
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, are referred to as half
Conductor is illuminated, 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 in China's progress.China turns into the whole world
Semiconductor lighting industry development most fast region.
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 for enough adjusting colour temperature is becoming increasingly popular.The color temperature adjusting system of LED illumination is usually
There is the LED strip/of multigroup different-colour and link together, one group or several groups is realized by modes such as remote control, wall urban electric power switch
LED break-make.Wall urban electric power switch is low due to system cost, and application method is simple, by the extensive welcome of client.But at present
The LED illumination circuit with color temperature adjusting system, after user sets color temperature parameters in control end (every kind of different zones
LED light group may correspond to different color temperature parameters), color temperature adjusting system according to each constant-current driven module of default order-driven,
And then the illumination colour temperature of LED is controlled, in the event of accident power-off accident, color temperature adjusting system can be immediately returned to original state,
Default instruction all disappears, and does not have " to remember " function, it is necessary to user resets again, adds the burden of user.
Utility model content
The purpose of this utility model is that the drawbacks described above for being directed to prior art is examined there is provided a kind of LED switch of Universal rotary
Slowdown monitoring circuit.
A kind of LED switch detects circuit, is arranged in LED illumination circuit, the LED illumination circuit include mains supply,
Urban electric power switch, rectifier bridge, N number of constant-current driven module, N number of LED light group, colour temperature detection control module, the mains supply pass through
Urban electric power switch connects the input of rectifier bridge, and N number of perseverance has been arranged in parallel between the output cathode and output negative pole of rectifier bridge
Drive module is flowed, N number of constant-current driven module connects N number of LED light group correspondingly, and the colour temperature detection control module connects
Connect and control N number of constant-current driven module, the LED switch detection circuit includes connecting with the CS ends of N number of constant-current driven module
It is N number of on the N number of inductive reactance connect, the other end connection rectifier bridge output negative pole of N number of inductive reactance, N number of inductive reactance
Voltage signal is transferred to the CS ends that colour temperature detects control module, parallel connection one between the output cathode and output negative pole of the rectifier bridge
Electric capacity.
More specifically, the value round numbers of the N, and more than or equal to 1.
More specifically, N number of output port in the colour temperature detection control module connects N number of constant-current driven module respectively
VCC ports, the vdd terminal of the colour temperature detection control module is connected to the output cathode of rectifier bridge by resistance.
More specifically, the CS ends of colour temperature detection control module by N number of resistance R1, R2 ... Rn is respectively connecting to N
The CS ends of individual constant-current driven module.
More specifically, the output negative pole of the rectifier bridge, the GND ends of colour temperature detection control module and constant-current driven module
GND ends, NC ends are grounded.
More specifically, the constant-current driven module uses model BP2833LED constant-current driven chips.
Compared with prior art, the utility model has the advantages that：This circuit can be used for the LED drivetrains of isolation and non-isolated
System, simplifies system schema, reduces system cost, improve accuracy of detection and reliability, can adjust wall urban electric power switch
Time, user's switch experience is improved, this circuit reaches detection city using the voltage detected on the inductive reactance of constant-current driven module
The purpose whether electric switch switchs, while if power interruption recovering in timing, colour temperature detection control module has certain note
Recall function, remain to work on.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of embodiment of the present utility model.
Embodiment
Just the utility model is further described with specific embodiment with reference to the accompanying drawings below, but implementation of the present utility model
Mode is not limited to this.
If Fig. 1 is the theory diagram that a kind of LED switch detects circuit, Fig. 2 is the implementation that a kind of LED switch detects circuit
Example, the embodiment is arranged in LED illumination circuit, and the LED illumination circuit includes mains supply, urban electric power switch K1, rectifier bridge
DB1, three constant-current driven modules (UA1, UB1, UC5), three LED light groups (D4, D5, D6), colour temperature detection control modules
AP6872, the mains supply (alternating current 220V) passes through urban electric power switch K1 connection rectifier bridges DB1 input, rectifier bridge DB1
Output cathode and output negative pole between be arranged in parallel three constant-current driven modules (UA1, UB1, UC5), three constant currents
Drive module (UA1, UB1, UC5) connects three LED light groups (D4, D5, D6), the colour temperature detection control correspondingly
Modules A P6872 is connected and is controlled three constant-current driven modules (UA1, UB1, UC5), and the LED switch detection circuit includes and institute
State three inductive reactances (RS1, RS2, RS3) of the CS ends connection of three constant-current driven modules (UA1, UB1, UC5), three sensings
The other end connection rectifier bridge DB1 output negative poles of resistance (RS1, RS2, RS3), three inductive reactances (RS1, RS2, RS3)
On three voltage signals colour temperature detection control module AP6872 CS is transferred to respectively through three resistance R12, R13, R14
End, electric capacity C5 in parallel between the output cathode and output negative pole of the rectifier bridge DB1.
Three output ports (P1, P2, P3) on the colour temperature detection control module AP6872 connect three constant currents respectively
The VCC ports of drive module, it is whole that the colour temperature detects that control module AP6872 vdd terminal is connected to by resistance (R10, R11)
Flow bridge DB1 output cathode, output negative pole, colour temperature detection control module AP6872 GND ends and the constant current of the rectifier bridge DB1
GND ends, the NC ends of drive module (UA1, UB1, UC5) are grounded, and the constant-current driven module (UA1, UB1, UC5) uses model
For BP2833LED constant-current driven chips.
Operation principle：When urban electric power switch K1 disconnects, the VCC ports of three constant-current driven modules lose city's electric drive, institute
There is LED light group (D4, D5, D6) not work, three inductive reactances (RS1, RS2, RS3) are above without electric current also without voltage),
Colour temperature detection control module AP6872 CS ends can't detect voltage signal；When urban electric power switch K1 is closed, colour temperature detection control
Modules A P6872 power-on-resets, the control logic sequential set according to chip, output control electric current to three constant current driving moulds
Three VCC ports of block (UA1, UB1, UC5), drive corresponding constant-current driven module normal work, corresponding LED light group hair
Voltage can be produced on light, corresponding inductive reactance (RS1, RS2, RS3), colour temperature detection control module AP6872 detects K1 and closed
Close；
When in the K1 short time being in off-state, the driving voltage at corresponding LED light group (D4, D5, D6) two ends disappears, color
Temperature detector surveys the loss of voltage that control module AP6872 detects inductive reactance (RS1, RS2, RS3), learns that urban electric power switch K1 disconnects；
Now, colour temperature detection control module AP6872 is powered (electric capacity has energy storage function) by electric capacity C5, starts timing, such as
Fruit in timing urban electric power switch K1 re-close, colour temperature detect control module AP6872 according to the logical order set according to
It is secondary to export corresponding control electric current to three VCC ports of three constant-current driven modules (UA1, UB1, UC5), drive corresponding perseverance
Flow drive module normal work；
After if urban electric power switch K1 disconnects, electric capacity C5 electricity to colour temperature detect control module AP6872 electricity shortages or
Person exceedes timing, and temperature detector, which surveys control module AP6872, can then reset to original state.
By adjusting electric capacity C5 size, the timing after urban electric power switch K1 disconnects can adjust.
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 in the case where not departing from principle of the present utility model and structure a variety of changes, repaiies
Change, replace and modification, scope of the present utility model is limited by appended claims and its equivalency range.
Claims (6)
1. a kind of LED switch detects circuit, it is arranged in LED illumination circuit, the LED illumination circuit includes mains supply, city
Electric switch, rectifier bridge, N number of constant-current driven module, N number of LED light group, colour temperature detection control module, the mains supply pass through city
Electric switch connects the input of rectifier bridge, and N number of constant current has been arranged in parallel between the output cathode and output negative pole of rectifier bridge
Drive module, N number of constant-current driven module connects N number of LED light group, the colour temperature detection control module connection correspondingly
And controlling N number of constant-current driven module, it is characterised in that the LED switch detection circuit includes and N number of constant-current driven module
CS ends connection N number of inductive reactance, N number of inductive reactance the other end connection rectifier bridge output negative pole, N number of inductive reactance
On N number of voltage signal be transferred to the CS ends that colour temperature detects control module, the output cathode and output negative pole of the rectifier bridge it
Between an electric capacity in parallel.
2. LED switch according to claim 1 detects circuit, it is characterised in that the value round numbers of the N, and more than etc.
In 1.
3. LED switch according to claim 1 detects circuit, it is characterised in that the N in the colour temperature detection control module
Individual output port connects the VCC ports of N number of constant-current driven module respectively, and the vdd terminal of the colour temperature detection control module passes through electricity
Resistance is connected to the output cathode of rectifier bridge.
4. LED switch according to claim 1 detects circuit, it is characterised in that the colour temperature detects the CS of control module
End by N number of resistance R1, R2 ... Rn is respectively connecting to the CS ends of N number of constant-current driven module.
5. LED switch according to claim 1 detects circuit, it is characterised in that the output negative pole of the rectifier bridge, colour temperature
Detect that the GND ends of control module and GND ends, the NC ends of constant-current driven module are grounded.
6. LED switch according to claim 1 detects circuit, it is characterised in that the constant-current driven module uses model
For BP2833LED constant-current driven chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720227040.9U CN206559689U (en) | 2017-03-09 | 2017-03-09 | A kind of LED switch detects circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720227040.9U CN206559689U (en) | 2017-03-09 | 2017-03-09 | A kind of LED switch detects circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206559689U true CN206559689U (en) | 2017-10-13 |
Family
ID=60363826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720227040.9U Active CN206559689U (en) | 2017-03-09 | 2017-03-09 | A kind of LED switch detects circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206559689U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112803932A (en) * | 2019-11-13 | 2021-05-14 | 深圳市峰峦图像科技有限公司 | Wireless light-operated switch |
-
2017
- 2017-03-09 CN CN201720227040.9U patent/CN206559689U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112803932A (en) * | 2019-11-13 | 2021-05-14 | 深圳市峰峦图像科技有限公司 | Wireless light-operated switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230421 Address after: 518000 803, block a, sharing building, No. 78, Keyuan North Road, songpingshan community, Xili street, Nanshan District, Shenzhen, Guangdong (actual floor 903) Patentee after: Shenzhen Core Semiconductor Co.,Ltd. Address before: 518000 3C, building 3, Haiyin Great Wall, Nanshan District, Shenzhen, Guangdong Patentee before: Zhu Xiaoan |