CN204697349U - A kind of active human body infrared control circuit - Google Patents
A kind of active human body infrared control circuit Download PDFInfo
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- CN204697349U CN204697349U CN201520422220.3U CN201520422220U CN204697349U CN 204697349 U CN204697349 U CN 204697349U CN 201520422220 U CN201520422220 U CN 201520422220U CN 204697349 U CN204697349 U CN 204697349U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model discloses a kind of active human body infrared control circuit, described active human body infrared control circuit comprises IC power supply positive pole VDD, switching signal input pin SW, pattern setting pin SET, exports first passage CH1, exports second channel CH2, exports third channel CH3, IC power supply negative pole VSS, high precision thermosensitive resistor, the photo resistance of long distance, the temperature that LED initiatively can respond to human body carries out control light modulation, be applicable to domestic lighting initiatively inductive control occasion, make LED daylight lamp more humane, more saves energy.
Description
Technical field
The utility model relates to field of LED illumination, particularly a kind of active human body infrared control circuit.
Background technology
At present, along with the universal of LED and the development of technology, LED replaces the lamp source of original fluorescent lamp as fluorescent lamp gradually.Control for indoor illumination light fitting is mainly undertaken by two kinds of modes.A kind ofly to be controlled by mechanical switch, namely controlled by the lighting of the Switch Controller indoor of engineering properties, reach the effect of " it is bright that switch closes lamp, and switch turn-off lamp goes out "; Another kind is controlled by infrared human body induction switch, is namely detected by the personnel of infrared human body induction Switch Controller indoor, reaches the effect of " have thin and weak man bright, go out without thin and weak man ".For front a kind of control mode, need to be split by artificial mode to put line operate into, the intellectuality of modern science and technology cannot be embodied, for rear a kind of control mode, although highly embody the intelligentized one side of modern science and technology, but occupancy is less and lamp is all opened in most cases, wastes electric energy, reduces the utilance of resource.
Utility model content
For overcoming the deficiencies in the prior art, the purpose of this utility model is to provide a kind of active human body infrared control circuit, realizes multichannel light source independence or work in combination by single switch, provides diversity to select to the work of light source combination.
The technical scheme adopted for solving the utility model object technical problem is: a kind of active human body infrared control circuit, comprise: Drive and Control Circuit and several LED module groups, at least two or more LED lamp pearl is provided with in described LED module group, that connects with described LED module group is suitable for the independent some LED lamp pearls controlled, and the sum of described LED lamp pearl is no less than LED lamp pearl number in LED module group; Some LED module groups, LED lamp bead produce an output voltage after forming series circuit;
Described Drive and Control Circuit comprises drive circuit, active adjusting control circuit, public anode, the first negative electrode, the second negative electrode, described drive circuit comprises rectification circuit, filter circuit and drive IC, described rectification circuit comprises the first rectifier bridge and the second rectifier bridge that are connected with ac input end, the output of described first rectifier bridge connects the input of drive IC, and the power take-off of described drive IC is connected to public anode by filter circuit; Described active adjusting control circuit comprises active adjustment IC, high precision thermosensitive resistor, the photo resistance of long distance, the first triode, the second triode, described active adjustment IC has the first output, the second output, first output is connected with the input of high precision thermosensitive resistor, second output is connected with the input of long distance photo resistance, the output of high precision thermosensitive resistor is connected to the first negative electrode by the first triode, and the output of long distance photo resistance is connected to the second negative electrode by the second triode.
Described active human body infrared control circuit also comprises: be suitable for respectively to the active adjustment module that each LED module group, high precision thermosensitive resistor, the photo resistance of long distance, LED lamp pearl control, this active adjustment module comprises:
Voltage coarse adjustment module, is suitable for by set upper limit reference voltage and lower limit reference voltage, controls each LED module group respectively and lights or extinguish, and to adjust described output voltage, makes it be stabilized between described upper limit reference voltage and lower limit reference voltage;
Voltage fine module, be suitable for by setting the second reference voltage, control each LED lamp pearl respectively light or extinguish, again to adjust described output voltage, make it be stable between described upper limit reference voltage and the second reference voltage or between lower limit reference voltage and the second reference voltage.
Further, described voltage coarse adjustment module comprises: the first active regulation voltage detecting unit, the first logic control element, and several first active regulation units in parallel with each LED module group respectively;
Described first active regulation voltage detecting unit comprises: upper voltage limit comparator, lower voltage limit comparator, and described output voltage is connected to the end of oppisite phase of upper voltage limit comparator and the in-phase end of lower voltage limit comparator respectively;
The in-phase end access upper limit reference voltage of described upper voltage limit comparator,
The end of oppisite phase access lower limit reference voltage of described lower voltage limit comparator;
Described first logic control element adopts the first shifting deposit unit, the serial input terminal access low level that moves to left of described first shifting deposit unit, the serial input terminal that moves to right access high level, or the serial input terminal access high level that moves to left, the serial input terminal that moves to right access low level;
Two inputs of the control mode of described first shifting deposit unit are connected with the output of upper and lower limit voltage comparator respectively, to realize the control that moves to left or move to right;
The output of described first shifting deposit unit is connected with the control end of each first active regulation unit respectively.
Further, described voltage fine module comprises: the second active regulation voltage detecting unit, second logic control element, several the second active regulation units in parallel with LED lamp pearl respectively, described second logic control element adopts the second shifting deposit unit;
Described second active regulation voltage detecting unit, comprise: fine tuning voltage comparator, the end of oppisite phase of this fine tuning voltage comparator accesses described output voltage, described second reference voltage of its in-phase end access, and this second reference voltage is that lower limit reference voltage adds a stepped voltage;
On described, the output of lower voltage limit comparator is also connected with two inputs of door with one respectively, should be connected with the first input end of a three value and gate with the output of door, the output of described fine tuning voltage comparator is connected with the second input of described three value and gate by the first not gate, 3rd input of this three value and gate accesses a pulse signal, the output of this three value and gate is connected with the CP pulse ends of described second shifting deposit unit, the output of described fine tuning voltage comparator is also connected by move to right serial input terminal or the serial input terminal that moves to left of the second not gate and described second shifting deposit unit,
The output of described second shifting deposit unit is connected with the control end of each second active regulation unit respectively.
Further, described voltage fine module comprises: the second active regulation voltage detecting unit, second logic control element, several the second active regulation units in parallel with LED lamp pearl respectively, described second logic control element adopts the second shifting deposit unit;
Described second active regulation voltage detecting unit, comprise: fine tuning voltage comparator, the end of oppisite phase of this fine tuning voltage comparator accesses described output voltage, described second reference voltage of its in-phase end access, and this second reference voltage is that upper limit reference voltage deducts a stepped voltage;
On described, the output of lower voltage limit comparator is also connected with two inputs of door with one respectively, should be connected with the first input end of a three value and gate with the output of door, the output of described fine tuning voltage comparator is connected with the second input of described three value and gate, 3rd input of this three value and gate accesses a pulse signal, the output of this three value and gate is connected with the CP pulse ends of described second shifting deposit unit, the output of described fine tuning voltage comparator is also connected with move to right serial input terminal or the serial input terminal that moves to left of described second shifting deposit unit,
The output of described second shifting deposit unit is connected with the control end of each second active regulation unit respectively.
Further, described induction control switch comprises: the first active regulation voltage detecting unit, the first logic control element, and several first active regulation units in parallel with each LED module group respectively;
Described first active regulation voltage detecting unit comprises: upper voltage limit comparator, lower voltage limit comparator, and described output voltage is connected to the end of oppisite phase of upper voltage limit comparator and the in-phase end of lower voltage limit comparator respectively;
The in-phase end access upper limit reference voltage of described upper voltage limit comparator,
The end of oppisite phase access lower limit reference voltage of described lower voltage limit comparator;
If described output voltage is greater than upper limit reference voltage, then the first active regulation voltage detecting unit makes the first shifting deposit unit produce the shift signal turned off successively by each first active regulation unit, until described output voltage drops between upper limit reference voltage and lower limit reference voltage; If described output voltage is less than lower limit reference voltage, then the first active regulation voltage detecting unit makes the first shifting deposit unit produce the shift signal of each first active regulation unit successively conducting, until output voltage is elevated between described upper limit reference voltage and lower limit reference voltage;
If described output voltage is between described upper limit reference voltage and lower limit reference voltage, then the first active regulation voltage detecting unit makes the first shifting deposit unit produce the signal maintained the original state by each first active regulation unit.
Further again, described first logic control element adopts the first shifting deposit unit, the serial input terminal access low level that moves to left of this first shifting deposit unit, the serial input terminal that moves to right access high level, or the serial input terminal access high level that moves to left, the serial input terminal that moves to right access low level;
Two inputs of the control mode of described first shifting deposit unit are connected with the output of upper and lower limit voltage comparator respectively, to realize the control that moves to left or move to right;
The output of described first shifting deposit unit is connected with the control end of each first active regulation unit respectively; When the input voltage fluctuation of described series circuit;
If described output voltage is greater than upper limit reference voltage, described upper voltage limit comparator output low level, lower voltage limit comparator exports high level, described first shifting deposit unit is exported successively make the shift signal that each first active regulation unit turns off, namely corresponding LED module group is lighted successively, to reduce described output voltage, until between upper limit reference voltage and lower limit reference voltage;
If described output voltage is less than lower limit reference voltage, described upper voltage limit comparator exports high level, lower voltage limit comparator output low level, described first shifting deposit unit is exported successively make the shift signal of each first active regulation unit conducting, namely corresponding LED module group is extinguished successively, to improve described output voltage, until between upper limit reference voltage and lower limit reference voltage;
If described output voltage is between described upper limit reference voltage and lower limit reference voltage, described upper voltage limit comparator, lower voltage limit comparator all export high level, described first shifting deposit unit is exported maintain the original state, namely each LED module group maintains the original state.
Further again, described voltage fine module comprises: the second active regulation voltage detecting unit, second logic control element, several the second active regulation units in parallel with LED lamp pearl respectively, described second logic control element adopts the second shifting deposit unit;
Described second active regulation voltage detecting unit, comprise: fine tuning voltage comparator, the end of oppisite phase of this fine tuning voltage comparator accesses described output voltage, described second reference voltage of its in-phase end access, and this second reference voltage is that lower limit reference voltage adds a stepped voltage;
On described, the output of lower voltage limit comparator is also connected with two inputs of door with one respectively, should be connected with the first input end of a three value and gate with the output of door, the output of described fine tuning voltage comparator is connected with the second input of described three value and gate by the first not gate, 3rd input of this three value and gate accesses a pulse signal, the output of this three value and gate is connected with the CP pulse ends of described second shifting deposit unit, the output of described fine tuning voltage comparator is also connected by move to right serial input terminal or the serial input terminal that moves to left of the second not gate and described second shifting deposit unit,
The output of described second shifting deposit unit is connected with the control end of each second active regulation unit respectively; When described output voltage is between described upper limit reference voltage and lower limit reference voltage, and when this output voltage is greater than the second reference voltage, realize reducing this output voltage by lighting LED lamp pearl; Namely, describedly export high level with door, access to the first input end of described three value and gate, fine tuning voltage comparator output low level, and export high level by described not gate, access to the second input of described three value and gate, namely described pulse signal accesses to the CP pulse ends of the second shifting deposit unit; And the second shifting deposit unit moves to right, serial input terminal or the serial input terminal that moves to left access the low level that described fine tuning voltage comparator exports, move to left or move to right into this low level to make described second shifting deposit unit, corresponding second active regulation unit turns off, then corresponding LED lamp pearl is lighted, to reduce described output voltage, until when this output voltage is between the second reference voltage and lower limit reference voltage, stop displacement.
The beneficial effects of the utility model are: the active human body infrared control circuit of one that the utility model adopts and control method, user can carry out Discrete control light modulation to LED, it is bright that closed switch on wall warms up light modulation source, disconnect again closed white light source bright, again operate switch on wall two street lamp source simultaneously bright, be applicable to domestic lighting and control occasion, make LED daylight lamp more humane, more saves energy.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and example, the utility model is described in further detail.
Fig. 1 is the structure principle chart of Drive and Control Circuit of the present utility model.
Fig. 2 is the utility model drive control module pin distribution map.
Embodiment
Illustrate with reference to Fig. 1-2, a kind of active human body infrared control circuit, comprise: Drive and Control Circuit and several LED module groups, at least two or more LED lamp pearl is provided with in described LED module group, that connects with described LED module group is suitable for the independent some LED lamp pearls controlled, and the sum of described LED lamp pearl is no less than LED lamp pearl number in LED module group; Some LED module groups, LED lamp bead produce an output voltage after forming series circuit;
Described Drive and Control Circuit comprises drive circuit, active adjusting control circuit, public anode, the first negative electrode, the second negative electrode, described drive circuit comprises rectification circuit, filter circuit and drive IC, described rectification circuit comprises the first rectifier bridge and the second rectifier bridge that are connected with ac input end, the output of described first rectifier bridge connects the input of drive IC, and the power take-off of described drive IC is connected to public anode by filter circuit; Described active adjusting control circuit comprises active adjustment IC, high precision thermosensitive resistor, the photo resistance of long distance, the first triode, the second triode, described active adjustment IC has the first output, the second output, first output is connected with the input of high precision thermosensitive resistor, second output is connected with the input of long distance photo resistance, the output of high precision thermosensitive resistor is connected to the first negative electrode by the first triode, and the output of long distance photo resistance is connected to the second negative electrode by the second triode.
In order to further illustrate function, the present embodiment also provides described drive control module pin instruction card as follows:
| Pin bit number | Pin position title | Functional description |
| 1 | VDD | IC power supply positive pole |
| 2 | NC | Need not empty pin, give over to and expand use in the future, when circuit design, this pin position is unsettled, also can weak current pull-up |
| 3 | SW | Switching signal input pin |
| 4 | SET | Pattern setting pin, 4 kinds of State-outputs when this underfooting is drawn, 3 our State-outputs during unsettled or pull-up |
| 5 | CH1 | Export first passage |
| 6 | CH2 | Export second channel |
| 7 | CH3 | Export third channel |
| 8 | VSS | IC power supply negative pole, connects power supply ground |
Described active human body infrared control circuit also comprises: be suitable for respectively to the active adjustment module that each LED module group, high precision thermosensitive resistor, the photo resistance of long distance, LED lamp pearl control, this active adjustment module comprises:
Voltage coarse adjustment module, is suitable for by set upper limit reference voltage and lower limit reference voltage, controls each LED module group respectively and lights or extinguish, and to adjust described output voltage, makes it be stabilized between described upper limit reference voltage and lower limit reference voltage;
Voltage fine module, be suitable for by setting the second reference voltage, control each LED lamp pearl respectively light or extinguish, again to adjust described output voltage, make it be stable between described upper limit reference voltage and the second reference voltage or between lower limit reference voltage and the second reference voltage.
Further, described voltage coarse adjustment module comprises: the first active regulation voltage detecting unit, the first logic control element, and several first active regulation units in parallel with each LED module group respectively;
Described first active regulation voltage detecting unit comprises: upper voltage limit comparator, lower voltage limit comparator, and described output voltage is connected to the end of oppisite phase of upper voltage limit comparator and the in-phase end of lower voltage limit comparator respectively;
The in-phase end access upper limit reference voltage of described upper voltage limit comparator,
The end of oppisite phase access lower limit reference voltage of described lower voltage limit comparator;
Described first logic control element adopts the first shifting deposit unit, the serial input terminal access low level that moves to left of described first shifting deposit unit, the serial input terminal that moves to right access high level, or the serial input terminal access high level that moves to left, the serial input terminal that moves to right access low level;
Two inputs of the control mode of described first shifting deposit unit are connected with the output of upper and lower limit voltage comparator respectively, to realize the control that moves to left or move to right;
The output of described first shifting deposit unit is connected with the control end of each first active regulation unit respectively.
Further, described voltage fine module comprises: the second active regulation voltage detecting unit, second logic control element, several the second active regulation units in parallel with LED lamp pearl respectively, described second logic control element adopts the second shifting deposit unit;
Described second active regulation voltage detecting unit, comprise: fine tuning voltage comparator, the end of oppisite phase of this fine tuning voltage comparator accesses described output voltage, described second reference voltage of its in-phase end access, and this second reference voltage is that lower limit reference voltage adds a stepped voltage;
On described, the output of lower voltage limit comparator is also connected with two inputs of door with one respectively, should be connected with the first input end of a three value and gate with the output of door, the output of described fine tuning voltage comparator is connected with the second input of described three value and gate by the first not gate, 3rd input of this three value and gate accesses a pulse signal, the output of this three value and gate is connected with the CP pulse ends of described second shifting deposit unit, the output of described fine tuning voltage comparator is also connected by move to right serial input terminal or the serial input terminal that moves to left of the second not gate and described second shifting deposit unit,
The output of described second shifting deposit unit is connected with the control end of each second active regulation unit respectively.
Further, described voltage fine module comprises: the second active regulation voltage detecting unit, second logic control element, several the second active regulation units in parallel with LED lamp pearl respectively, described second logic control element adopts the second shifting deposit unit;
Described second active regulation voltage detecting unit, comprise: fine tuning voltage comparator, the end of oppisite phase of this fine tuning voltage comparator accesses described output voltage, described second reference voltage of its in-phase end access, and this second reference voltage is that upper limit reference voltage deducts a stepped voltage;
On described, the output of lower voltage limit comparator is also connected with two inputs of door with one respectively, should be connected with the first input end of a three value and gate with the output of door, the output of described fine tuning voltage comparator is connected with the second input of described three value and gate, 3rd input of this three value and gate accesses a pulse signal, the output of this three value and gate is connected with the CP pulse ends of described second shifting deposit unit, the output of described fine tuning voltage comparator is also connected with move to right serial input terminal or the serial input terminal that moves to left of described second shifting deposit unit,
The output of described second shifting deposit unit is connected with the control end of each second active regulation unit respectively.
Further, described induction control switch comprises: the first active regulation voltage detecting unit, the first logic control element, and several first active regulation units in parallel with each LED module group respectively;
Described first active regulation voltage detecting unit comprises: upper voltage limit comparator, lower voltage limit comparator, and described output voltage is connected to the end of oppisite phase of upper voltage limit comparator and the in-phase end of lower voltage limit comparator respectively;
The in-phase end access upper limit reference voltage of described upper voltage limit comparator,
The end of oppisite phase access lower limit reference voltage of described lower voltage limit comparator;
If described output voltage is greater than upper limit reference voltage, then the first active regulation voltage detecting unit makes the first shifting deposit unit produce the shift signal turned off successively by each first active regulation unit, until described output voltage drops between upper limit reference voltage and lower limit reference voltage; If described output voltage is less than lower limit reference voltage, then the first active regulation voltage detecting unit makes the first shifting deposit unit produce the shift signal of each first active regulation unit successively conducting, until output voltage is elevated between described upper limit reference voltage and lower limit reference voltage;
If described output voltage is between described upper limit reference voltage and lower limit reference voltage, then the first active regulation voltage detecting unit makes the first shifting deposit unit produce the signal maintained the original state by each first active regulation unit.
Further again, described first logic control element adopts the first shifting deposit unit, the serial input terminal access low level that moves to left of this first shifting deposit unit, the serial input terminal that moves to right access high level, or the serial input terminal access high level that moves to left, the serial input terminal that moves to right access low level;
Two inputs of the control mode of described first shifting deposit unit are connected with the output of upper and lower limit voltage comparator respectively, to realize the control that moves to left or move to right;
The output of described first shifting deposit unit is connected with the control end of each first active regulation unit respectively; When the input voltage fluctuation of described series circuit;
If described output voltage is greater than upper limit reference voltage, described upper voltage limit comparator output low level, lower voltage limit comparator exports high level, described first shifting deposit unit is exported successively make the shift signal that each first active regulation unit turns off, namely corresponding LED module group is lighted successively, to reduce described output voltage, until between upper limit reference voltage and lower limit reference voltage;
If described output voltage is less than lower limit reference voltage, described upper voltage limit comparator exports high level, lower voltage limit comparator output low level, described first shifting deposit unit is exported successively make the shift signal of each first active regulation unit conducting, namely corresponding LED module group is extinguished successively, to improve described output voltage, until between upper limit reference voltage and lower limit reference voltage;
If described output voltage is between described upper limit reference voltage and lower limit reference voltage, described upper voltage limit comparator, lower voltage limit comparator all export high level, described first shifting deposit unit is exported maintain the original state, namely each LED module group maintains the original state.
Further again, described voltage fine module comprises: the second active regulation voltage detecting unit, second logic control element, several the second active regulation units in parallel with LED lamp pearl respectively, described second logic control element adopts the second shifting deposit unit;
Described second active regulation voltage detecting unit, comprise: fine tuning voltage comparator, the end of oppisite phase of this fine tuning voltage comparator accesses described output voltage, described second reference voltage of its in-phase end access, and this second reference voltage is that lower limit reference voltage adds a stepped voltage;
On described, the output of lower voltage limit comparator is also connected with two inputs of door with one respectively, should be connected with the first input end of a three value and gate with the output of door, the output of described fine tuning voltage comparator is connected with the second input of described three value and gate by the first not gate, 3rd input of this three value and gate accesses a pulse signal, the output of this three value and gate is connected with the CP pulse ends of described second shifting deposit unit, the output of described fine tuning voltage comparator is also connected by move to right serial input terminal or the serial input terminal that moves to left of the second not gate and described second shifting deposit unit,
The output of described second shifting deposit unit is connected with the control end of each second active regulation unit respectively; When described output voltage is between described upper limit reference voltage and lower limit reference voltage, and when this output voltage is greater than the second reference voltage, realize reducing this output voltage by lighting LED lamp pearl; Namely, describedly export high level with door, access to the first input end of described three value and gate, fine tuning voltage comparator output low level, and export high level by described not gate, access to the second input of described three value and gate, namely described pulse signal accesses to the CP pulse ends of the second shifting deposit unit; And the second shifting deposit unit moves to right, serial input terminal or the serial input terminal that moves to left access the low level that described fine tuning voltage comparator exports, move to left or move to right into this low level to make described second shifting deposit unit, corresponding second active regulation unit turns off, then corresponding LED lamp pearl is lighted, to reduce described output voltage, until when this output voltage is between the second reference voltage and lower limit reference voltage, stop displacement.
The beneficial effects of the utility model are: the active human body infrared control circuit of one that the utility model adopts and control method, user can carry out Discrete control light modulation to LED, it is bright that closed switch on wall warms up light modulation source, disconnect again closed white light source bright, again operate switch on wall two street lamp source simultaneously bright, be applicable to domestic lighting Discrete control occasion, make LED fluorescent lamp more humane, more saves energy.
The above, just preferred embodiment of the present utility model, the utility model is not limited to above-mentioned execution mode, as long as it reaches technique effect of the present utility model with identical means, all should belong to protection range of the present utility model.
Claims (4)
1. an active human body infrared control circuit, it is characterized in that comprising: Drive and Control Circuit and several LED module groups, at least two or more LED lamp pearl is provided with in described LED module group, that connects with described LED module group is suitable for the independent some LED lamp pearls controlled, and the sum of described LED lamp pearl is no less than LED lamp pearl number in LED module group; Some LED module groups, LED lamp bead produce an output voltage after forming series circuit;
Described Drive and Control Circuit comprises drive circuit, active adjusting control circuit, public anode, the first negative electrode, the second negative electrode, described drive circuit comprises rectification circuit, filter circuit and drive IC, described rectification circuit comprises the first rectifier bridge and the second rectifier bridge that are connected with ac input end, the output of described first rectifier bridge connects the input of drive IC, and the power take-off of described drive IC is connected to public anode by filter circuit; Described active adjusting control circuit comprises active adjustment IC, high precision thermosensitive resistor, the photo resistance of long distance, the first triode, the second triode, described active adjustment IC has the first output, the second output, first output is connected with the input of high precision thermosensitive resistor, second output is connected with the input of long distance photo resistance, the output of high precision thermosensitive resistor is connected to the first negative electrode by the first triode, and the output of long distance photo resistance is connected to the second negative electrode by the second triode;
Described active human body infrared control circuit also comprises: be suitable for respectively to the active adjustment module that each LED module group, LED lamp pearl control, this active adjustment module comprises:
Voltage coarse adjustment module, is suitable for by set upper limit reference voltage and lower limit reference voltage, controls each LED module group respectively and lights or extinguish, and to adjust described output voltage, makes it be stabilized between described upper limit reference voltage and lower limit reference voltage;
Voltage fine module, be suitable for by setting the second reference voltage, control each LED lamp pearl respectively light or extinguish, again to adjust described output voltage, make it be stable between described upper limit reference voltage and the second reference voltage or between lower limit reference voltage and the second reference voltage.
2. according to the active human body infrared control circuit described in claim 1, it is characterized in that, described voltage coarse adjustment module comprises: the first active regulation voltage detecting unit, first logic control element, and several first active regulation units in parallel with each LED module group respectively;
Described first active regulation voltage detecting unit comprises: upper voltage limit comparator, lower voltage limit comparator, and described output voltage is connected to the end of oppisite phase of upper voltage limit comparator and the in-phase end of lower voltage limit comparator respectively;
The in-phase end access upper limit reference voltage of described upper voltage limit comparator,
The end of oppisite phase access lower limit reference voltage of described lower voltage limit comparator;
Described first logic control element adopts the first shifting deposit unit, the serial input terminal access low level that moves to left of described first shifting deposit unit, the serial input terminal that moves to right access high level, or the serial input terminal access high level that moves to left, the serial input terminal that moves to right access low level;
Two inputs of the control mode of described first shifting deposit unit are connected with the output of upper and lower limit voltage comparator respectively, to realize the control that moves to left or move to right;
The output of described first shifting deposit unit is connected with the control end of each first active regulation unit respectively.
3. according to the active human body infrared control circuit described in claim 2, it is characterized in that, described voltage fine module comprises: the second active regulation voltage detecting unit, second logic control element, several the second active regulation units in parallel with LED lamp pearl respectively, described second logic control element adopts the second shifting deposit unit;
Described second active regulation voltage detecting unit, comprise: fine tuning voltage comparator, the end of oppisite phase of this fine tuning voltage comparator accesses described output voltage, described second reference voltage of its in-phase end access, and this second reference voltage is that lower limit reference voltage adds a stepped voltage;
On described, the output of lower voltage limit comparator is also connected with two inputs of door with one respectively, should be connected with the first input end of a three value and gate with the output of door, the output of described fine tuning voltage comparator is connected with the second input of described three value and gate by the first not gate, 3rd input of this three value and gate accesses a pulse signal, the output of this three value and gate is connected with the CP pulse ends of described second shifting deposit unit, the output of described fine tuning voltage comparator is also connected by move to right serial input terminal or the serial input terminal that moves to left of the second not gate and described second shifting deposit unit,
The output of described second shifting deposit unit is connected with the control end of each second active regulation unit respectively.
4. active human body infrared control circuit according to claim 2, it is characterized in that, described voltage fine module comprises: the second active regulation voltage detecting unit, second logic control element, several the second active regulation units in parallel with LED lamp pearl respectively, described second logic control element adopts the second shifting deposit unit;
Described second active regulation voltage detecting unit, comprise: fine tuning voltage comparator, the end of oppisite phase of this fine tuning voltage comparator accesses described output voltage, described second reference voltage of its in-phase end access, and this second reference voltage is that upper limit reference voltage deducts a stepped voltage;
On described, the output of lower voltage limit comparator is also connected with two inputs of door with one respectively, should be connected with the first input end of a three value and gate with the output of door, the output of described fine tuning voltage comparator is connected with the second input of described three value and gate, 3rd input of this three value and gate accesses a pulse signal, the output of this three value and gate is connected with the CP pulse ends of described second shifting deposit unit, the output of described fine tuning voltage comparator is also connected with move to right serial input terminal or the serial input terminal that moves to left of described second shifting deposit unit,
The output of described second shifting deposit unit is connected with the control end of each second active regulation unit respectively.
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| CN201520422220.3U CN204697349U (en) | 2015-06-18 | 2015-06-18 | A kind of active human body infrared control circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104994628A (en) * | 2015-06-18 | 2015-10-21 | 常州顶芯半导体技术有限公司 | Active type human body infrared control circuit and control method thereof |
| CN106609949A (en) * | 2015-10-18 | 2017-05-03 | 许孙 | LED lamp provided with human body sensing device |
-
2015
- 2015-06-18 CN CN201520422220.3U patent/CN204697349U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104994628A (en) * | 2015-06-18 | 2015-10-21 | 常州顶芯半导体技术有限公司 | Active type human body infrared control circuit and control method thereof |
| CN106609949A (en) * | 2015-10-18 | 2017-05-03 | 许孙 | LED lamp provided with human body sensing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 Termination date: 20200618 |