CN211509374U - Light-operated LED lamp circuit with human body induction function - Google Patents
Light-operated LED lamp circuit with human body induction function Download PDFInfo
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- CN211509374U CN211509374U CN201922275443.2U CN201922275443U CN211509374U CN 211509374 U CN211509374 U CN 211509374U CN 201922275443 U CN201922275443 U CN 201922275443U CN 211509374 U CN211509374 U CN 211509374U
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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
Abstract
The utility model discloses a light-controlled LED lamp circuit with human body induction function, which comprises a rectification circuit, an LED light-emitting module, a constant current drive circuit, a voltage stabilizing circuit, a light intensity detection circuit, a human body induction circuit and a signal processing circuit, wherein the signal processing circuit converts a voltage signal output by the light intensity detection circuit into a drive voltage signal for output, an opening threshold voltage is set in the constant current drive circuit, when the driving voltage signal is smaller than the starting threshold value, the constant current driving circuit outputs no current to make the LED light-emitting module not emit light, when the driving voltage signal is greater than or equal to the starting threshold value and the human body induction circuit outputs a voltage signal for turning off the light, the constant current driving circuit outputs current to enable the LED light-emitting module to emit light at low brightness, when the driving voltage signal is greater than or equal to the starting threshold value and the human body induction circuit outputs a voltage signal for lighting, the constant current driving circuit outputs current to enable the LED light-emitting module to emit light with high brightness within set time; the advantage is that the minimum brightness lighting use requirement is met.
Description
Technical Field
The utility model relates to a light-operated LED lamp circuit especially relates to a light-operated LED lamp circuit with human response function.
Background
The light-operated LED lamp with the human body induction function does not need a user to set the states of controlling the lighting and the light-off, is convenient and practical, can achieve the purpose of energy conservation, and is widely applied at present. The light-operated LED lamp with the human body induction function obtains a voltage signal corresponding to an environment light intensity signal through ambient light detection and achieves lighting and lighting-off with the human body induction signal obtained through the human body detection, when the voltage signal corresponding to the environment light intensity signal is smaller than a voltage threshold value set in the light-operated LED lamp or the voltage signal corresponding to the environment light intensity signal is larger than or equal to the threshold value set in the light-operated LED lamp but does not sense a person, the light-operated LED lamp with the human body induction function keeps the lighting-off state, when the voltage signal corresponding to the environment light intensity signal is larger than or equal to the voltage threshold value set in the light-operated LED lamp but senses the person, the light-operated LED lamp with the human body induction function keeps lighting-off after the lighting-on state in set time, and the size of the voltage signal corresponding to the environment.
The existing light-operated LED lamp circuit with the human body induction function generally comprises a rectifying circuit, a constant current driving circuit, an LED light-emitting module, a voltage stabilizing circuit, a light intensity detection circuit and a human body induction circuit, wherein the rectifying circuit is connected with commercial power and converts alternating-current voltage of the commercial power into high-voltage direct-current voltage, the voltage stabilizing circuit is connected with the rectifying circuit and converts the high-voltage direct-current voltage output by the rectifying circuit into low-voltage direct-current voltage to provide working voltage for the light intensity detection circuit and the human body induction circuit, the light intensity detection circuit linearly converts the received light intensity signal into a voltage signal, the human body induction circuit is connected with the light intensity detection circuit, a voltage threshold value is arranged in the human body induction circuit, when the human body induction circuit judges that the voltage signal output by the light intensity detection circuit is smaller than the voltage threshold value set in the human body induction circuit, the human body induction circuit outputs a light A threshold value, outputting a light-off voltage signal to the constant current driving circuit under the condition that no person is sensed in the sensing area, outputting a light-on voltage signal in a set time period by the human body sensing circuit when the human body sensing circuit judges that the voltage signal output by the light intensity detection circuit is larger than or equal to the voltage threshold value set in the light intensity detection circuit and senses the person in the sensing area, outputting the light-on voltage signal in the set time period if the human body is sensed again during the period of outputting the light-on voltage signal, outputting the light-on voltage signal in the set time period after timing is restarted, and outputting the light-off voltage signal again after the set time period is finished if the human body is not sensed again during the period of outputting the light-on voltage signal; the constant current driving circuit is connected with the human body induction circuit and the LED light emitting module, when the constant current driving circuit receives a voltage signal of a bright lamp output by the human body induction circuit, the constant current driving circuit outputs direct current to drive the LED light emitting module to emit light, the light emitting intensity of the LED light emitting module is in direct proportion to the current flowing through the LED light emitting module, when the constant current driving circuit receives a voltage signal of light-off output by the human body induction circuit, the constant current driving circuit does not output direct current, the LED light emitting module does not emit light, and the direct current output by the constant current driving circuit when the constant current driving circuit receives the voltage signal of the bright lamp is preset.
Although the existing light-operated LED lamp circuit with the human body induction function has the advantages of convenience and energy conservation, the light-operated LED lamp circuit can only be changed between a light-on state and a light-off state, at present, in some areas at night, for the purpose of avoiding accidents of pedestrians or having the reasons of monitoring equipment and the like, the lamp can be required to keep the illumination with the lowest brightness in a dark environment, and then the light-operated LED lamp circuit with the human body induction function cannot meet the requirements.
Disclosure of Invention
The utility model aims to solve the technical problem that a light-operated LED lamp circuit with human response function is provided, this light-operated LED lamp circuit with human response function has three kinds of operating condition: the lighting control system comprises a light-off state, a low-brightness state and a high-brightness state, wherein the light-off mode is kept when the ambient light ratio is stronger, the low-brightness state is entered when the ambient light intensity is reduced to a target value, the low-brightness state is kept if people around are not sensed when the ambient light intensity is in the low-brightness state, and the high-brightness state is kept within a set time if people around are detected, so that the requirement of minimum-brightness illumination is met.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: a light-operated LED lamp circuit with a human body induction function comprises a rectifying circuit, an LED light-emitting module, a constant current driving circuit, a voltage stabilizing circuit, a light intensity detection circuit and a human body induction circuit, wherein the rectifying circuit is used for converting alternating-current voltage of a mains supply into high-voltage direct-current voltage for output, the voltage stabilizing circuit is used for converting the high-voltage direct-current voltage output by the rectifying circuit into low-voltage direct-current voltage and then providing working voltage for the light intensity detection circuit and the human body induction circuit, the light intensity detection circuit is used for linearly converting received light intensity signals into voltage signals for output, the human body induction circuit is used for sensing whether a person exists in an induction area of the human body induction circuit, the voltage signals for lighting the lamp when the person exists, and the voltage signals for lighting the lamp when the person does not exist, the light-operated LED lamp circuit with the human body induction function further comprises a signal processing circuit, and the signal processing The LED light-emitting device comprises a driving circuit, a constant current driving circuit and a human body induction circuit, wherein the driving circuit is used for outputting a driving voltage signal, a starting threshold voltage is set in the constant current driving circuit, when the driving voltage signal is smaller than the starting threshold, the constant current driving circuit does not output current to enable the LED light-emitting module not to emit light, when the driving voltage signal is larger than or equal to the starting threshold and the human body induction circuit outputs a light-off voltage signal, the constant current driving circuit outputs current to enable the LED light-emitting module to emit light at low brightness, and when the driving voltage signal is larger than or equal to the starting threshold and the human body induction circuit outputs a light-on voltage signal, the constant current driving circuit outputs current to enable the LED light-emitting module to emit light at high brightness within a set time.
The LED light-emitting module comprises a first LED light-emitting circuit, a second LED light-emitting circuit and a third LED light-emitting circuit, the rectifying circuit is provided with a live wire input end, a zero wire input end, an output end and a grounding end, the voltage stabilizing circuit is provided with an anode, a cathode and an output end, the human body induction circuit is provided with an anode, a cathode and an output end, the light intensity detection circuit is provided with an anode, a cathode and an output end, the first LED light-emitting circuit, the second LED light-emitting circuit and the third LED light-emitting circuit are respectively provided with an anode and a cathode, the signal processing circuit is provided with an input end, an output end and a grounding end, the constant current driving circuit is realized by a three-section controlled linear constant current circuit, and the constant current driving circuit is provided with a first control end, a second control end, a first output end, a second output end, a third output end and, the live wire input end of the rectifying circuit is used for being connected with a live wire of a commercial power, the zero line input end of the rectifying circuit is used for being connected with a zero line of the commercial power, the output end of the rectifying circuit is respectively connected with the anode of the first LED light-emitting circuit and the anode of the voltage stabilizing circuit, the output end of the voltage stabilizing circuit is respectively connected with the anode of the human body induction circuit and the anode of the light intensity detection circuit, the cathode of the first LED light-emitting circuit, the anode of the second LED light-emitting circuit and the first output end of the constant current driving circuit are connected, the cathode of the second LED light-emitting circuit, the anode of the third LED light-emitting circuit and the second output end of the constant current driving circuit are connected, the cathode of the third LED light-emitting circuit and the third output end of the constant current driving circuit are connected, and the output end of the human body induction circuit is connected with the first control end of the constant current driving circuit, the output end of the light intensity detection circuit is connected with the input end of the signal processing circuit, the output end of the signal processing circuit is connected with the second control end of the constant current driving circuit, and the grounding end of the rectifying circuit, the cathode of the voltage stabilizing circuit, the cathode of the human body induction circuit, the cathode of the light intensity detection circuit, the grounding end of the constant current driving circuit and the cathode of the signal processing circuit are connected.
The voltage stabilizing circuit is characterized in that the voltage stabilizing voltage comprises a first resistor, a first capacitor and a first diode, the first capacitor is an electrolytic capacitor, the first diode is a voltage stabilizing diode, one end of the first resistor is the anode of the voltage stabilizing circuit, the other end of the first resistor, the anode of the first capacitor and the cathode of the first diode are connected, the connecting end of the first resistor, the anode of the first capacitor and the cathode of the first diode are connected, the output end of the voltage stabilizing circuit is the connecting end of the first capacitor, the cathode of the first capacitor and the anode of the first diode are connected, and the connecting end of the first capacitor is the cathode of the voltage stabilizing circuit.
The light intensity detection circuit comprises a second resistor and a first phototriode, one end of the second resistor is the anode of the light intensity detection circuit, the other end of the second resistor is connected with the collector of the first phototriode, the connecting end of the second resistor is connected with the output end of the light intensity detection circuit, and the emitter of the first phototriode is the cathode of the light intensity detection circuit.
The signal processing circuit comprises a second diode, a third resistor and a second capacitor, the anode of the second diode is the input end of the signal processing circuit, the cathode of the second diode, one end of the third resistor and one end of the second capacitor are connected, the connecting end of the third resistor and the other end of the second capacitor are connected, and the connecting end of the third resistor and the other end of the second capacitor are connected.
The linear constant current circuit comprises a fourth resistor, a fifth resistor, a sixth resistor, a third capacitor, a first MOS (metal oxide semiconductor) tube and a first integrated circuit chip with the model number of RM9001A, wherein the grid electrode of the first MOS tube is the second control end of the linear constant current circuit, the drain electrode of the first MOS tube is connected with the 1 st pin of the first integrated circuit chip, one end of the fourth resistor is the first control end of the linear constant current circuit, the other end of the fourth resistor and one end of the third capacitor are connected with the 2 nd pin of the first integrated circuit chip, the source electrode of the first MOS tube is connected with one end of the fifth resistor, the other end of the fifth resistor and the other end of the third capacitor are connected with the 3 rd pin of the first integrated circuit chip, and the connecting end of the fifth resistor and the third capacitor is the grounding end of the linear constant current circuit, the 8 th pin of the first integrated circuit chip is the first output end of the linear constant current circuit, the 7 th pin of the first integrated circuit chip is the second output end of the linear constant current circuit, the 5 th pin of the first integrated circuit chip is connected with one end of the sixth resistor, the connecting end of the sixth resistor is the third output end of the linear constant current circuit, and the other end of the sixth resistor is connected with the 4 th pin of the first integrated circuit chip. In the circuit, a model RM9001A chip is used as a core constant current control element of the linear constant current circuit, so that the circuit is low in cost and wide in commercial power voltage adaptation.
Rectifier circuit adopt full-bridge rectifier chip to realize, full-bridge rectifier chip's the 1 st foot do rectifier circuit's live wire input, full-bridge rectifier chip's the 3 rd foot do rectifier circuit's zero line input, full-bridge rectifier chip's the 2 nd foot do rectifier circuit's output, full-bridge rectifier chip's the 4 th foot do rectifier circuit's earthing terminal.
Compared with the prior art, the utility model has the advantages that the utility model converts the alternating voltage of the commercial power into the high voltage direct voltage for output through the rectifying circuit, the voltage stabilizing circuit converts the high voltage direct voltage output by the rectifying circuit into the low voltage direct voltage and then provides the working voltage for the light intensity detecting circuit and the human body induction circuit, the light intensity detecting circuit linearly converts the received light intensity signal into the voltage signal for output, the human body induction circuit is used for sensing whether a person exists in the induction area, the voltage signal for lighting the lamp is output when the person exists, the voltage signal for turning off the lamp is output when the person does not exist, the signal processing circuit converts the voltage signal output by the light intensity detecting circuit into the driving voltage signal suitable for controlling the constant current driving circuit for output, the magnitude of the driving voltage signal is inversely proportional to the magnitude of the light intensity signal detected by the light intensity detecting circuit, the constant current driving circuit is internally set with a starting threshold voltage, when a driving voltage signal is smaller than the starting threshold, the constant current driving circuit does not output current to enable the LED light-emitting module not to emit light, when the driving voltage signal is larger than or equal to the starting threshold and the human body induction circuit outputs a light-off voltage signal, the constant current driving circuit outputs current to enable the LED light-emitting module to emit light at low brightness, when the driving voltage signal is larger than or equal to the starting threshold and the human body induction circuit outputs a light-on voltage signal, the constant current driving circuit outputs current to enable the LED light-emitting module to emit light at high brightness within a set time period, the starting voltage threshold in the constant current driving circuit is preset, the magnitude of the current output when the LED light-emitting module emits light at low brightness and the magnitude of the current output when the LED light-emitting module emits light at high brightness by the constant current driving circuit are preset according to use requirements, and the duration of the light-on, from this the utility model discloses a light-operated LED lamp circuit with human response function has three kinds of operating condition: the lighting control system comprises a light-off state, a low-brightness state and a high-brightness state, wherein the light-off mode is kept when the ambient light ratio is stronger, the low-brightness state is entered when the ambient light intensity is reduced to a target value, the low-brightness state is kept if people around are not sensed when the ambient light intensity is in the low-brightness state, and the high-brightness state is kept within a set time if people around are detected, so that the requirement of minimum-brightness illumination is met.
Drawings
Fig. 1 is a block diagram of a conventional light-controlled LED lamp circuit with a human body sensing function;
fig. 2 is a block diagram of a light-controlled LED lamp circuit with a human body sensing function according to a first embodiment of the present invention;
fig. 3 is a block diagram of a light-controlled LED lamp circuit with a human body sensing function according to a second embodiment of the present invention;
fig. 4 is a circuit diagram of a light-operated LED lamp circuit with a human body sensing function according to the second embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
The first embodiment is as follows: as shown in fig. 2, a light-controlled LED lamp circuit with a human body sensing function includes a rectifying circuit, an LED light emitting module, a constant current driving circuit, a voltage stabilizing circuit, a light intensity detecting circuit and a human body sensing circuit, wherein the rectifying circuit is used for converting a commercial power ac voltage into a high voltage dc voltage for output, the voltage stabilizing circuit is used for converting the high voltage dc voltage output by the rectifying circuit into a low voltage dc voltage and then providing a working voltage for the light intensity detecting circuit and the human body sensing circuit, the light intensity detecting circuit is used for linearly converting a received light intensity signal into a voltage signal for output, the human body sensing circuit is used for sensing whether a person is in a sensing area, if the person is, outputting a light-on voltage signal, and if the person is not, outputting a light-off voltage signal When the driving voltage signal is greater than or equal to the opening threshold value and the human body induction circuit outputs a voltage signal for turning off the lamp, the constant current driving circuit outputs current to enable the LED light-emitting module to emit light at low brightness, and when the driving voltage signal is greater than or equal to the opening threshold value and the human body induction circuit outputs a voltage signal for turning on the lamp, the constant current driving circuit outputs current to enable the LED light-emitting module to emit light at high brightness within a set time.
Example two: this embodiment is substantially the same as the first embodiment, except that:
as shown in fig. 3, in this embodiment, the LED lighting module includes a first LED lighting circuit, a second LED lighting circuit and a third LED lighting circuit, the rectifying circuit has a live wire input terminal, a zero line input terminal, an output terminal and a ground terminal, the voltage stabilizing circuit has a positive electrode, a negative electrode and an output terminal, the human body sensing circuit has a positive electrode, a negative electrode and an output terminal, the light intensity detecting circuit has a positive electrode, a negative electrode and an output terminal, the first LED lighting circuit, the second LED lighting circuit and the third LED lighting circuit have a positive electrode and a negative electrode respectively, the signal processing circuit has an input terminal, an output terminal and a ground terminal, the constant current driving circuit is implemented by a linear constant current circuit controlled by three segments, the constant current driving circuit has a first control terminal, a second control terminal, a first output terminal, a second output terminal, a third output terminal and a ground terminal, the live wire, the input end of the zero line of the rectifying circuit is used for connecting a zero line of commercial power, the output end of the rectifying circuit is respectively connected with the anode of the first LED light-emitting circuit and the anode of the voltage stabilizing circuit, the output end of the voltage stabilizing circuit is respectively connected with the anode of the human body induction circuit and the anode of the light intensity detection circuit, the cathode of the first LED light-emitting circuit, the anode of the second LED light-emitting circuit and the first output end of the constant current driving circuit are connected, the cathode of the second LED light-emitting circuit, the anode of the third LED light-emitting circuit and the second output end of the constant current driving circuit are connected, the cathode of the third LED light-emitting circuit and the third output end of the constant current driving circuit are connected, the output end of the human body induction circuit is connected with the first control end of the constant current driving circuit, the output end of the light intensity detection circuit is connected with the input end of the, the grounding end of the rectification circuit, the negative electrode of the voltage stabilizing circuit, the negative electrode of the human body induction circuit, the negative electrode of the light intensity detection circuit, the grounding end of the constant current driving circuit and the negative electrode of the signal processing circuit are connected.
As shown in fig. 4, in the present embodiment, the regulated voltage includes a first resistor R1, a first capacitor C1, and a first diode D1, the first capacitor C1 is an electrolytic capacitor, the first diode D1 is a voltage regulator diode, one end of the first resistor R1 is an anode of the regulator circuit, the other end of the first resistor R1, the anode of the first capacitor C1, and the cathode of the first diode D1 are connected, and a connection end thereof is an output end of the regulator circuit, a cathode of the first capacitor C1 is connected to an anode of the first diode D1, and a connection end thereof is a cathode of the regulator circuit.
As shown in fig. 4, in this embodiment, the light intensity detecting circuit includes a second resistor R2 and a first phototransistor Q1, one end of the second resistor R2 is an anode of the light intensity detecting circuit, the other end of the second resistor R2 is connected to a collector of the first phototransistor Q1, a connection end of the second resistor R2 is an output end of the light intensity detecting circuit, and an emitter of the first phototransistor Q1 is a cathode of the light intensity detecting circuit.
As shown in fig. 4, in this embodiment, the signal processing circuit includes a second diode D2, a third resistor R3, and a second capacitor C2, the anode of the second diode D2 is the input terminal of the signal processing circuit, the cathode of the second diode D2, one end of the third resistor R3, and one end of the second capacitor C2 are connected, and the connection end thereof is the output terminal of the signal processing circuit, and the other end of the third resistor R3 is connected with the other end of the second capacitor C2, and the connection end thereof is the cathode of the signal processing circuit.
As shown in fig. 4, in this embodiment, the linear constant current circuit includes a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a third capacitor C3, a first MOS transistor N1, and a first integrated circuit chip U1 with model number RM9001A, the gate of the first MOS transistor N1 is the second control terminal of the linear constant current circuit, the drain of the first MOS transistor N1 is connected to the 1 st pin of the first integrated circuit chip U1, one end of the fourth resistor R4 is the first control terminal of the linear constant current circuit, the other end of the fourth resistor R4, one end of the third capacitor C3 and the 2 nd pin of the first integrated circuit chip U1 are connected, the source of the first MOS transistor N1 is connected to one end of the fifth resistor R8, the other end of the fifth resistor R5, the other end of the third capacitor C3 and the 3 rd pin of the first integrated circuit chip U1 are connected together, and the connection end of the first integrated circuit chip U368 is the first pin of the linear constant current circuit 368, the 7 th pin of the first integrated circuit chip U1 is a second output end of the linear constant current circuit, the 5 th pin of the first integrated circuit chip U1 is connected with one end of the sixth resistor R6, the connection end of the first integrated circuit chip U1 is a third output end of the linear constant current circuit, and the other end of the sixth resistor R6 is connected with the 4 th pin of the first integrated circuit chip U1.
As shown in fig. 4, in this embodiment, the rectifier circuit is implemented by using a full-bridge rectifier chip Db, a pin 1 of the full-bridge rectifier chip Db is a live wire input end of the rectifier circuit, a pin 3 of the full-bridge rectifier chip Db is a zero line input end of the rectifier circuit, a pin 2 of the full-bridge rectifier chip Db is an output end of the rectifier circuit, and a pin 4 of the full-bridge rectifier chip Db is a ground end of the rectifier circuit.
In this embodiment, the first LED lighting circuit, the second LED lighting circuit and the third LED lighting circuit all adopt the current mature technology, the first LED lighting circuit is formed by connecting a plurality of LED illuminants (LED1-1 to LED1-k) in series and parallel, the second LED lighting circuit is formed by connecting a plurality of LED illuminants (LED1-1 to LED1-m) in series and parallel, and the third LED lighting circuit is formed by connecting a plurality of LED illuminants (LED1-1 to LED1-n) in series and parallel. The human body induction circuit is realized by adopting a currently mature human body induction sensor module circuit M1, one end of the human body induction sensor module circuit M1, which is connected with the anode of a power supply, is the anode of the human body induction circuit, one end of the human body induction sensor module circuit M1, which is connected with the cathode of the power supply, is the cathode of the human body induction circuit, the output end of the output high level or low level detection result is the output end of the human body induction circuit, and the human body induction sensor module circuit M1 can be an infrared sensor module, a microwave sensor module or an ultrasonic sensor module and.
Claims (7)
1. A light-operated LED lamp circuit with a human body induction function comprises a rectifying circuit, an LED light-emitting module, a constant current driving circuit, a voltage stabilizing circuit, a light intensity detection circuit and a human body induction circuit, wherein the rectifying circuit is used for converting alternating-current voltage of commercial power into high-voltage direct-current voltage to be output, the voltage stabilizing circuit is used for converting the high-voltage direct-current voltage output by the rectifying circuit into low-voltage direct-current voltage to provide working voltage for the light intensity detection circuit and the human body induction circuit, the light intensity detection circuit is used for linearly converting received light intensity signals into voltage signals to be output, the human body induction circuit is used for inducing whether people exist in an induction area of the human body induction circuit, if people exist, the light-operated LED lamp circuit outputs voltage signals for lighting the lamp, and if no people exist, the light-off voltage signals are output, the signal processing circuit is used for converting the voltage signal output by the light intensity detection circuit into a driving voltage signal for driving the constant current driving circuit to output, the constant current driving circuit is internally provided with a starting threshold voltage, when the driving voltage signal is smaller than the starting threshold value, the constant current driving circuit outputs no current to enable the LED light-emitting module not to emit light, when the driving voltage signal is greater than or equal to the starting threshold value and the human body induction circuit outputs a voltage signal for turning off the lamp, the constant current driving circuit outputs current to make the LED light-emitting module emit light at low brightness, when the driving voltage signal is greater than or equal to the starting threshold value and the human body induction circuit outputs a voltage signal for lighting the lamp, the constant current driving circuit outputs current to enable the LED light-emitting module to emit light with high brightness within set time.
2. The light-operated LED lamp circuit with human body induction function according to claim 1, wherein the LED light-emitting module comprises a first LED light-emitting circuit, a second LED light-emitting circuit and a third LED light-emitting circuit, the rectifying circuit has a live wire input terminal, a zero wire input terminal, an output terminal and a ground terminal, the voltage stabilizing circuit has an anode, a cathode and an output terminal, the human body induction circuit has an anode, a cathode and an output terminal, the light intensity detecting circuit has an anode, a cathode and an output terminal, the first LED light-emitting circuit, the second LED light-emitting circuit and the third LED light-emitting circuit respectively have an anode and a cathode, the signal processing circuit has an input terminal, an output terminal and a ground terminal, the constant current driving circuit is implemented by a three-section controlled linear constant current circuit, the constant current driving circuit has a first control terminal and a first control terminal, The output end of the voltage stabilizing circuit is respectively connected with the anode of the first LED light-emitting circuit and the anode of the voltage stabilizing circuit, the output end of the voltage stabilizing circuit is respectively connected with the anode of the human body induction circuit and the anode of the light intensity detection circuit, the cathode of the first LED light-emitting circuit, the anode of the second LED light-emitting circuit and the first output end of the constant current driving circuit, the cathode of the second LED light-emitting circuit, the anode of the third LED light-emitting circuit and the second output end of the constant current driving circuit are connected, and the cathode of the third LED light-emitting circuit is connected with the third output end of the constant current driving circuit, the output end of the human body induction circuit is connected with the first control end of the constant current driving circuit, the output end of the light intensity detection circuit is connected with the input end of the signal processing circuit, the output end of the signal processing circuit is connected with the second control end of the constant current driving circuit, and the grounding end of the rectifying circuit, the negative electrode of the voltage stabilizing circuit, the negative electrode of the human body induction circuit, the negative electrode of the light intensity detection circuit and the grounding end of the constant current driving circuit are connected with the negative electrode of the signal processing circuit.
3. The light-operated LED lamp circuit with human body induction function according to claim 2, wherein the regulated voltage comprises a first resistor, a first capacitor and a first diode, the first capacitor is an electrolytic capacitor, the first diode is a regulated diode, one end of the first resistor is an anode of the voltage regulator circuit, the other end of the first resistor, the anode of the first capacitor and the cathode of the first diode are connected, a connection end of the first diode is an output end of the voltage regulator circuit, the cathode of the first capacitor and the anode of the first diode are connected, and a connection end of the first capacitor and the cathode of the first diode are connected, a connection end of the first capacitor and the cathode of the voltage regulator circuit.
4. The light-operated LED lamp circuit with the human body induction function according to claim 2, wherein the light intensity detection circuit comprises a second resistor and a first phototransistor, one end of the second resistor is an anode of the light intensity detection circuit, the other end of the second resistor is connected with a collector of the first phototransistor, a connecting end of the second resistor is an output end of the light intensity detection circuit, and an emitting electrode of the first phototransistor is a cathode of the light intensity detection circuit.
5. A light-operated LED lamp circuit with human body induction function according to claim 2, characterized in that the signal processing circuit comprises a second diode, a third resistor and a second capacitor, the anode of the second diode is the input terminal of the signal processing circuit, the cathode of the second diode, one end of the third resistor and one end of the second capacitor are connected and the connection terminal thereof is the output terminal of the signal processing circuit, the other end of the third resistor and the other end of the second capacitor are connected and the connection terminal thereof is the cathode of the signal processing circuit.
6. A light-operated LED lamp circuit with human body induction function as claimed in claim 2, wherein the linear constant current circuit comprises a fourth resistor, a fifth resistor, a sixth resistor, a third capacitor, a first MOS transistor and a first ic chip with model number RM9001A, the gate of the first MOS transistor is the second control terminal of the linear constant current circuit, the drain of the first MOS transistor is connected to the 1 st pin of the first ic chip, one end of the fourth resistor is the first control terminal of the linear constant current circuit, the other end of the fourth resistor, one end of the third capacitor are connected to the 2 nd pin of the first ic chip, the source of the first MOS transistor is connected to one end of the fifth resistor, the other end of the third capacitor are connected to the 3 rd pin of the first ic chip, and the connection end is the linear constant current circuit The 8 th pin of the first integrated circuit chip is the first output end of the linear constant current circuit, the 7 th pin of the first integrated circuit chip is the second output end of the linear constant current circuit, the 5 th pin of the first integrated circuit chip is connected with one end of the sixth resistor, the connecting end of the sixth resistor is the third output end of the linear constant current circuit, and the other end of the sixth resistor is connected with the 4 th pin of the first integrated circuit chip.
7. The light-operated LED lamp circuit with human body induction function according to claim 2, characterized in that the rectifier circuit is implemented by a full-bridge rectifier chip, the 1 st pin of the full-bridge rectifier chip is the live wire input end of the rectifier circuit, the 3 rd pin of the full-bridge rectifier chip is the zero wire input end of the rectifier circuit, the 2 nd pin of the full-bridge rectifier chip is the output end of the rectifier circuit, and the 4 th pin of the full-bridge rectifier chip is the grounding end of the rectifier circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922275443.2U CN211509374U (en) | 2019-12-17 | 2019-12-17 | Light-operated LED lamp circuit with human body induction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922275443.2U CN211509374U (en) | 2019-12-17 | 2019-12-17 | Light-operated LED lamp circuit with human body induction function |
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| CN201922275443.2U Active CN211509374U (en) | 2019-12-17 | 2019-12-17 | Light-operated LED lamp circuit with human body induction function |
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