CN207947930U

CN207947930U - A kind of inductive switch control device

Info

Publication number: CN207947930U
Application number: CN201820421735.5U
Authority: CN
Inventors: 蔡作华
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-03-27
Filing date: 2018-03-27
Publication date: 2018-10-09
Anticipated expiration: 2028-03-27

Abstract

The utility model discloses a kind of inductive switch control devices, including LED switch power supply and inductor, the LED switch power supply includes high-voltage linear IC chip, the high-voltage linear IC chip includes one or more of the ports VCC, the ports VS or the ports DIM, and the inductor is electrically connected with a port in the ports VCC, the ports VS and the ports DIM.Inductor is electrically connected with a port in the ports VCC, the ports VS or the ports DIM in high-voltage linear IC chip, relay and bidirectional triode thyristor need not be set again, the exchange side of LED switch power supply need not also be manipulated simultaneously, reduce component, reduce cost, the stability for improving inductive switch control device extends the service life of LED illumination product.

Description

A kind of inductive switch control device

Technical field

The utility model is related to technical field of electric control, especially a kind of inductive switch control device.

Background technology

LED is as new illuminating product, because having many advantages, such as energy saving and specular removal, the increasingly attention by society and people Like.For more energy efficient power saving and easy to use, people are mounted with inductor to LED illumination product, by inductor into Row human body sensing or light-operated induction automatic switch illuminating product, and them is allowed to become more energy efficient, more convenient operation.

As shown in Fig. 1 ~ 5, the inductive switch control device of LED illumination product, including sense are controlled by inductor on the market Answer device 1, power supply module 2 that DC voltage is provided for inductor 1, the LED switch power supply 3 that alternating current is converted to working power and Driver, the interior high-voltage linear IC chip 4 being equipped with for connecting and controlling LED illumination product switch of LED switch power supply 3, driving Device is electrically connected the exchange side of inductor 1 and LED switch power supply 3, for receiving signal that inductor 1 is sent out and controlling LED The break-make of Switching Power Supply 3, it is relay 5 that driver, which selects relay 5 or bidirectional triode thyristor 6, Fig. 1,3,4,5, and Fig. 2 is two-way Silicon-controlled 6, inductor 1 is by the conducting of normally opened contact or bidirectional triode thyristor 6 on relay 5 come to LED switch power supply 3 Exchange side carries out Push And Release, to achieve the purpose that inductor 1 carries out automatic Push And Release to LED illumination product.This induction is opened Control device is closed to have some disadvantages：Because to carry out switch control in exchange side to LED switch power supply 3 and LED illumination product, Driver used is that the either bidirectional triode thyristor 6 of relay 5 has capacitive load and inductive load because there are load characteristics, Improper use can cause contact to singe and kill, it is silicon-controlled overload and burn failure, make product cisco unity malfunction, and right 3 exchange side of LED switch power supply is repeated as many times after switching surge, can reduce the reliability and service life of LED illumination product.

Invention content

In order to solve above-mentioned the deficiencies in the prior art, the purpose of this utility model be to provide a kind of stability it is good, using the longevity Order long inductive switch control device.

To achieve the goals above, a kind of inductive switch control device designed by the utility model, including LED switch electricity Source and inductor, the LED switch power supply include high-voltage linear IC chip, and the high-voltage linear IC chip includes the ports VCC, VS One or more of port or the ports DIM, the inductor and one in the ports VCC, the ports VS and the ports DIM Port is electrically connected.

Preferably, further include power supply module, alternating current is passed through ac buck circuit and rectification circuit by the power supply module DC low-voltage electricity suppl is converted into inductor.

Preferably, the DC terminal of the LED switch power supply is electrically connected with inductor.

Preferably, the DC terminal of the LED switch power supply is electrically connected by direct-current voltage reducing circuit with inductor.

Preferably, the inductor pass sequentially through amplification computing circuit, negater circuit and the ports VCC, the ports VS with And a port electrical connection in the ports DIM.

Preferably, the inductor is pyroelectric infrared human body inductor either radar inductor or light-operated inductor.

Preferably, the LED switch power supply is isolation type switching power supply, non-isolated Switching Power Supply or high-voltage linear electricity One kind in source.

Compared with prior art, a kind of inductive switch control device that the utility model obtains, advantage are：Induction Device is electrically connected with a port in the ports VCC, the ports VS or the ports DIM in high-voltage linear IC chip, need not be arranged again Relay and bidirectional triode thyristor, while the exchange side of LED switch power supply need not also be manipulated, reduce component, drops Low cost, improves the stability of inductive switch control device, extends the service life of LED illumination product.

Description of the drawings

Fig. 1 is the electrical block diagram of inductive switch control device in background technology.

Fig. 2 is another electrical block diagram of inductive switch control device in background technology.

Fig. 3 is another electrical block diagram of inductive switch control device in background technology.

Fig. 4 is another electrical block diagram of inductive switch control device in background technology.

Fig. 5 is another electrical block diagram of inductive switch control device in background technology.

Fig. 6 is the electrical block diagram of inductive switch control device in the present embodiment.

Fig. 7 is another electrical block diagram of inductive switch control device in the present embodiment.

Fig. 8 is another electrical block diagram of inductive switch control device in the present embodiment.

Fig. 9 is another electrical block diagram of inductive switch control device in the present embodiment.

Specific implementation mode

The utility model is further illustrated with reference to the accompanying drawings and examples.

As shown in Fig. 6 ~ 9, a kind of inductive switch control device, including LED switch power supply 3 and inductor 1, the LED are opened Powered-down source 3 includes high-voltage linear IC chip 4, and the high-voltage linear IC chip 4 includes in the ports VCC, the ports VS or the ports DIM One or more, the inductor 1 are electrically connected with a port in the ports VCC, the ports VS and the ports DIM.It will sense It answers device 1 to be electrically connected with high-voltage linear IC chip 4, induction automatic switch LED illumination product is carried out by inductor 1.

Inductor 1 is electrically connected with a port in the ports VCC, the ports VS or the ports DIM in high-voltage linear IC chip 4 It connects, relay and bidirectional triode thyristor need not be set again, while need not also be manipulated to the exchange side of LED switch power supply 3, Reduce component, reduce cost, improve the stability of inductive switch control device, extends making for LED illumination product Use the service life.

The inside concrete structure of LED switch power supply 3 is that Switching Power Supply exchange side connects alternating current, then passes through bridge heap rectification circuit And reduction voltage circuit exports stable DC low-voltage to high-voltage linear IC chip 4.The high-voltage linear IC chip 4 belongs to existing skill Art is generally using on the market, for example, L1O5O, Bp28 series high-voltage linear IC chip, details are not described herein.

In order to give inductor 1 power, a power supply module can be set in inductive switch control device, as shown in Fig. 1 ~ 5, Alternating current is converted into DC low-voltage electricity suppl to inductor 1 by the power supply module 2 by ac buck circuit and rectification circuit. Can certainly be that the DC terminal of the LED switch power supply 3 is electrically connected with inductor, as shown in Fig. 6 ~ 9.The former powers use Ac buck circuit, common ac buck circuit all use capacitance resistance ware reduction voltage circuit, its reliability and stability compared with Difference causes entire inductive switch control device to bringing higher technology requirement by safety and EMI.LED described in the latter 3 DC terminal of Switching Power Supply can be the high direct voltage end after bridge heap rectification, be needed at this time by direct-current voltage reducing circuit and induction Device is electrically connected, and can also be the DC low-voltage end of the ports high-voltage linear IC chip VCC, this power supply mode can greatly reduce member What device, reduction production cost, while LED switch power supply 3 were supplied to inductor 1 is DC low-voltage electricity, it is no longer necessary to which exchange is high Piezoelectricity is powered, and what inductor 1 was conveyed to high-voltage linear IC chip 4 is also DC low-voltage electricity, not only the reliability of inductor 1 and steady Qualitative to be greatly improved, the reliability and stability of entire inductive switch control device can greatly improve, and drop significantly Low safety and EMI's passes through difficulty.In the present embodiment, the DC terminal of the LED switch power supply 3 by direct-current voltage reducing circuit with Inductor 1 is electrically connected.

Wherein, the inductor 1 can be in pyroelectric infrared human body inductor, radar inductor or light-operated inductor One kind, in the present embodiment, inductive switch 1 is pyroelectric infrared human body inductor.

As shown in fig. 6, the LED switch power supply 3 in the electrical block diagram is isolation type switching power supply.This is isolated to open After the exchange side access alternating current in powered-down source, after bridge heap rectification, DC high-voltage power supply is obtained, using by diode D1, resistance The straight of stabilization is established after the decompression for the direct-current voltage reducing circuit that R1, zener diode DZ1, triode Q1, resistance R2, capacitance C5 are formed Low pressure is flowed, and stable 3.3V voltages are exported to inductor 1 through IC1, inductor 1 starts to build with the IC2 in amplification computing circuit Vertical preliminary examination exports high level from steady form, the OUT terminal of IC2, powers to triode Q2 base stages through resistance R9, and the base stage of Q2 is high electricity Flat, the base stage of the current collection extremely low level of Q2, triode Q3 is also low level, the current collection extremely high level of Q3, the collector of Q3 The ports VCC of high-voltage linear IC chip 4 through resistance R11 connection LED switches power supply 3, the ports VCC of high-voltage linear IC chip 4 The starting voltage of the 12v ~ 18v low currents for the stabilization established after resistance R11 decompressions is obtained, high-voltage linear IC chip 4 is normal Work, opens the power output circuit output current in high-voltage linear IC chip 4, LED illumination product obtain it is electric after shine work.When When 1 preliminary examination of inductor terminates to enter normal waiting work from steady form, the OUT terminal output low level of IC2, the base stage dead electricity of Q2, The current collection of Q2 extremely high level, Q3 base stages obtain it is electric after, current collection extremely low level, because Q3 collectors are connected to high pressure through resistance R11 The ports VCC of the ports VCC of linear IC chip 4, high-voltage linear IC chip 4 are low level.Because of the height of LED switch power supply 3 There is under-voltage protection function in crimping IC chip 4, when the VCC port voltages of high-voltage linear IC chip 4 are that low level voltage is low In the under-voltage protection point of high-voltage linear IC chip 4, high-voltage linear IC chip 4 is stopped, in shutdown high-voltage linear IC chip 4 Power output circuit turns off output current, and LED illumination product dead electricity is extinguished, at this point, whole system enters stable wait state. In induction range of the someone by the inductor 1, the ends OUT of 1 output signal of inductor, IC2 export high level, Q2's Current collection extremely low level, the current collection extremely high level of Q3, the ports VCC of the high-voltage linear IC chip 4 of LED switch power supply 3 are also High level, high-voltage linear IC chip 4 open chip in power output circuit, output current, LED illumination product obtain it is electric after shine Work.After the delay of IC2 settings, the OUT terminal mouth of IC2 becomes low level, Q2 base stage dead electricity, current collection extremely high level, Q3 again Base stage obtains electric, Q3 current collections extremely low level, and the ports VCC of the high-voltage linear IC chip 4 of LED switch power supply 3 are low level, high pressure The under-voltage protection of linear IC chip 4 starts and turns off the power output circuit in chip, turns off output current, LED illumination product Extinguish after dead electricity.Whole device enters stable wait state, until after inductor 1 senses human body, then task.

As shown in fig. 7, the LED switch power supply 3 in the electrical block diagram is non-isolated Switching Power Supply.The circuit Operation principle is with the operation principle of Fig. 6, and details are not described herein.

As shown in figure 8, the LED switch power supply 3 in the electrical block diagram is high-voltage linear power supply.High-voltage linear electricity After the exchange side access alternating current in source, after bridge heap rectification, 5V low-voltages are established in the ports VCC of high-voltage linear IC chip 4, and bridge heap is whole DC high-voltage after stream passes through the decompression of direct-current voltage reducing circuit, and exports stable 3.3V voltages to inductor 1, sense through IC1 Answer device 1 and IC2 obtain it is electric after, inductor 1 and IC2 begins setting up preliminary examination from steady form, and the OUT terminal of IC2 exports high level, through resistance R9 powers to Q2 base stages, and when the base stage of Q2 is high level, the current collection extremely low level of Q2, Q3 base stages are also low level, due to Q3 Base stage dead electricity, the current collection extremely high level of Q3, because Q3 collectors are connected to the dividing point G and high-voltage linear of resistance R11, R12 The ports DIM of IC chip 4.G points rationally divide VCC port voltages, can prevent the ports VCC of low current from overloading in this way and lose Electricity and cause inductor 1 out of control.At this point, the ports DIM of high-voltage linear IC chip 4 are high level, high-voltage linear IC chip 4 is opened Internal power output circuit output current, LED illumination product obtain it is electric after shine work.When 1 preliminary examination of inductor is from steady form knot Beam, into when normal waiting work, the OUT terminal output of IC2 is low level, Q2 base stage dead electricity, current collection extremely high level, the base of Q3 Pole obtain it is electric after, current collection extremely low level, divider resistance G points are low level, and the ports DIM of high-voltage linear IC chip 4 are low level, High-voltage linear IC chip 4 turns off internal power output circuit, turns off output current, LED illumination product dead electricity and extinguish, at this time System enters stable wait state.After someone senses by and by inductor 1,1 output signal of inductor, the OUT of IC2 End output high level, the current collection extremely low level of Q2, the current collection extremely high level of Q3, the G points and high pressure of the collector connection of Q3 The ports DIM of linear IC chip 4 are high level, and high-voltage linear IC chip 4 opens the power output circuit in chip and exports electricity Stream, LED illumination product obtain it is electric after shine work.After the delay of IC2 settings, the OUT terminal of IC2 becomes low level, and Q2 base stages are lost Electricity, collector become high level, and Q3 base stages obtain electric, Q3 current collections extremely low level, the ports DIM of G points and high-voltage linear IC chip 4 Also it is low level, 4 switch-off power output circuit of high-voltage linear IC chip turns off output current, put out after LED illuminating product dead electricity It goes out, system enters stable wait state, waits for the task again of the signal after the induction of inductor 1.

As shown in figure 9, the LED switch power supply 3 in the electrical block diagram is also high-voltage linear power supply.The circuit works Principle is with the operation principle of Fig. 8, and details are not described herein.Other than above-mentioned connection control mode controls, also a kind of connection control Mode, the i.e. ports DIM in high-voltage linear IC chip 4 are connected with the ports VCC, collector and the high-voltage linear IC chip 4 of Q3 The port VS, CP be connected, for remaining circuit structure with such as 9, the operation control method of current trend is constant, again may be by feeling Device 1 is answered to carry out the control of Push And Release to LED illumination product.

Similarly, radar inductor is connect with the signal output end of light-operated inductor by Q2, Q3 in above-mentioned negater circuit, Also it can be electrically connected with high-voltage linear IC chip 4, inductive switch control is realized to LED illumination product, control process is same as above, This is repeated no more.

Claims

1. a kind of inductive switch control device, including LED switch power supply and inductor, the LED switch power supply includes high-voltage line Property IC chip, the high-voltage linear IC chip includes one or more of the ports VCC, the ports VS or the ports DIM, and feature exists In：The inductor is electrically connected with a port in the ports VCC, the ports VS and the ports DIM.

2. inductive switch control device according to claim 1, it is characterised in that：Further include power supply module, the power supply Alternating current is converted into DC low-voltage electricity suppl to inductor by module by ac buck circuit and rectification circuit.

3. inductive switch control device according to claim 1, it is characterised in that：The DC terminal of the LED switch power supply It is electrically connected with inductor.

4. inductive switch control device according to claim 3, it is characterised in that：The DC terminal of the LED switch power supply It is electrically connected with inductor by direct-current voltage reducing circuit.

5. inductive switch control device according to claim 1, it is characterised in that：The inductor passes sequentially through amplification fortune Calculate circuit, negater circuit is electrically connected with a port in the ports VCC, the ports VS and the ports DIM.

6. according to any inductive switch control device of claim 1 ~ 5, it is characterised in that：The inductor is pyroelectricity Infrared human body inductor either radar inductor or light-operated inductor.

7. according to any inductive switch control device of claim 1 ~ 5, it is characterised in that：The LED switch power supply is One kind in isolation type switching power supply, non-isolated Switching Power Supply or high-voltage linear power supply.