CN209748866U - LED control circuit - Google Patents

LED control circuit Download PDF

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Publication number
CN209748866U
CN209748866U CN201920252606.2U CN201920252606U CN209748866U CN 209748866 U CN209748866 U CN 209748866U CN 201920252606 U CN201920252606 U CN 201920252606U CN 209748866 U CN209748866 U CN 209748866U
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China
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circuit
switch
output
self
input end
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CN201920252606.2U
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Chinese (zh)
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毕荣贵
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Shenzhen Longying Photoelectric Technology Co Ltd
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Shenzhen Longying Photoelectric Technology Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Abstract

The utility model discloses a LED control circuit, including switch switching circuit, self-locking switch circuit and inductive switch circuit, the input of switch switching circuit connects the feed end, and the output of switch switching circuit connects self-locking switch circuit's input and inductive switch circuit's input, and self-locking switch circuit's output and inductive switch circuit's output parallel connection have drive circuit, and drive circuit's output is connected with output circuit; the input end of the output circuit is connected with the power supply end, the output end of the output circuit is connected with the LED lamp module, and the self-locking switch circuit and the induction switch circuit control the on-off of the driving circuit, so that the on-off of the loop of the output circuit to the LED lamp module is controlled. The utility model discloses circuit structure is simple, can effectual control LED lamp module the normal light and go out often.

Description

LED control circuit
Technical Field
The utility model relates to a LED technical field specifically relates to a LED control circuit.
Background
At present, public places such as residential buildings and the like are provided with LED induction lamps in corridors, such as LED human body induction lamps, LED voice control induction lamps and the like. The LED human body induction lamp can emit light when inducting a human body, and people can walk at night conveniently. However, the LED human body induction lamp in the existing corridor is generally lighted for a period of time after sensing a human body, and then the lamp is extinguished, if the LED human body induction lamp is lighted again, the LED human body induction lamp can be lighted again only by moving again in an induction area, and the LED human body induction lamp cannot be extinguished in advance, and the LED human body induction lamp can not be controlled within the specified time after being triggered and lighted.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a circuit structure is simple, and can control the LED control circuit that the human response lamp of LED lights or goes out often.
The utility model discloses a technical scheme is of LED control circuit:
The utility model provides a LED control circuit, includes switch switching circuit, self-locking switch circuit and inductive switch circuit, the feed end is connected to switch switching circuit's input, switch switching circuit's output is connected self-locking switch circuit's input with inductive switch circuit's input, self-locking switch circuit's output with inductive switch circuit's output parallel connection has drive circuit, drive circuit's output is connected with output circuit.
The input end of the output circuit is connected with the power supply end, the output end of the output circuit is connected with the LED lamp module, the self-locking switch circuit and the induction switch circuit control the on-off of the driving circuit, and therefore the on-off of a loop from the output circuit to the LED lamp module is controlled.
Preferably, the switch switching circuit comprises a toggle switch KG1, and an input terminal of the toggle switch KG1 is connected to the power supply terminal.
Preferably, the self-locking switch circuit comprises a self-locking switch SW1, an input end of the self-locking switch SW1 is connected with an output end of the toggle switch KG1, and an output end of the self-locking switch SW1 is connected with an input end of the driving circuit.
Preferably, the inductive switch circuit comprises a human body inductive sensor U4, a power supply input end of the human body inductive sensor U4 is connected with an output end of the toggle switch KG1, and a control output end of the human body inductive sensor U4 is connected with an input end of the driving circuit.
preferably, a resistor R4 and a resistor R5 are connected to a detection input end of the human body sensor U4, the other end of the resistor R4 is connected to a power supply input end of the human body sensor U4, the other end of the resistor R5 is grounded, and a capacitor C3 is connected in parallel to the detection input end of the human body sensor U4.
Preferably, a capacitor C2 and a capacitor C4 are connected in parallel between the toggle switch KG1 and the power supply input end of the human body induction sensor U4.
Preferably, the driving circuit comprises a field effect transistor Q1, the output end of the self-locking switch SW1 and the control output end of the human body induction sensor U4 are connected in parallel with the gate of the field effect transistor Q1, the drain of the field effect transistor Q1 is connected with the output circuit, and the source of the field effect transistor Q1 is grounded.
Preferably, the output circuit comprises an interface J2, an output end of the interface J2 is connected with the LED lamp module, and an input end of the interface J2 is connected with a power supply end and a drain electrode of the field effect transistor Q1.
Preferably, the voltage stabilizing circuit further comprises a voltage stabilizing chip U3, the input end of the voltage stabilizing chip U3 is connected to the power supply end, and the output end of the voltage stabilizing chip U3 is connected to the input end of the toggle switch KG 1.
Preferably, a resistor R9 is connected in series with a control output end of the human body induction sensor U4, a resistor R11 is connected in series with an output end of the self-locking switch SW1, the other ends of the resistor R9 and the resistor R11 are connected in parallel with a gate of the field-effect transistor Q1, and a resistor R10 is further connected in parallel between one end of the resistor R9, which is connected in parallel with the resistor R11, and the gate of the field-effect transistor Q1.
The utility model provides a LED control circuit, with switch switching circuit connection inductive switch circuit, the feeder ear switches on to inductive switch circuit's return circuit this moment, and switch switching circuit ends to self-locking switch circuit's return circuit. When the induction switch circuit does not induce a human body, the induction switch circuit outputs an electric signal to the driving circuit, and the driving circuit is in a conducting state, so that a loop of the power supply end, the output circuit and the LED lamp module is cut off, and the LED lamp module is in an off state; when the induction switch circuit induces a human body, the induction switch circuit outputs an electric signal to the driving circuit, the driving circuit is in a turn-off state, so that the power supply end, the output circuit and the loop of the LED lamp module are switched on, and the LED lamp module is in a light-emitting state at the moment. When people walk and move in the corridor at night, the induction switch circuit can automatically induce the human body, and the LED lamp module emits light to illuminate the surrounding environment for people, so that the people can move at night conveniently. The switch switching circuit is connected with the self-locking switch circuit, at the moment, the loop from the power supply end to the self-locking switch circuit is conducted, and the loop from the switch switching circuit to the induction switch circuit is cut off. The self-locking switch circuit enables the driving circuit to be in a conducting state or a switching-off state all the time, and enables the power supply end, the output circuit and the loop of the LED lamp module to be in a conducting state or a switching-off state all the time, so that the LED lamp module is in a light-emitting state or a turning-off state all the time, and people can move in a dark area at night conveniently. The utility model discloses circuit structure is simple, can switch different switch modes through the switch switching circuit, carries out the giving off light of automatic control LED lamp module group and extinguishes through the inductive switch circuit, and it is often bright or often go out to carry out through self-locking switch circuit, has realized the random switch of LED lamp module group, more makes things convenient for people at night the activity.
Drawings
fig. 1 is a schematic structural diagram of a switch switching circuit of an LED control circuit according to the present invention.
Fig. 2 is a schematic structural diagram of an inductive switch circuit of an LED control circuit according to the present invention.
Fig. 3 is a schematic structural diagram of a self-locking switch circuit, a driving circuit and an output circuit of the LED control circuit of the present invention.
Fig. 4 is a schematic structural diagram of a voltage stabilizing circuit of an LED control circuit according to the present invention.
Detailed Description
The invention will be further elucidated and described with reference to the following embodiments and drawings in which:
Referring to fig. 1, 2 and 3, an LED control circuit includes a switch switching circuit, a self-locking switch circuit and an inductive switch circuit, wherein an input end of the switch switching circuit is connected to a power supply end, an output end of the switch switching circuit is connected to an input end of the self-locking switch circuit and an input end of the inductive switch circuit, an output end of the self-locking switch circuit and an output end of the inductive switch circuit are connected in parallel to a driving circuit, and an output end of the driving circuit is connected to an output circuit. The power supply end is a battery module formed by connecting 4 sections of No. 7 dry batteries with No. 1.5V in series.
The input end of the output circuit is connected with the power supply end, the output end of the output circuit is connected with the LED lamp module, the self-locking switch circuit and the induction switch circuit control the on-off of the driving circuit, and therefore the on-off of a loop from the output circuit to the LED lamp module is controlled.
The switch switching circuit comprises a toggle switch KG1, and the input end of the toggle switch KG1 is connected with the power supply end. The specification of the toggle switch KG1 is KG 5P-0.8.
The self-locking switch circuit comprises a self-locking switch SW1, the input end of the self-locking switch SW1 is connected with the output end of the toggle switch KG1, and the output end of the self-locking switch SW1 is connected with the input end of the drive circuit. The specification of the self-locking switch SW1 is SW 8P-0.85.
The inductive switch circuit comprises a human body inductive sensor U4, and the model of the human body inductive sensor U4 is BS 412. The power supply input end of the human body induction sensor U4 is connected with the output end of the toggle switch KG1, and the control output end of the human body induction sensor U4 is connected with the input end of the driving circuit.
The human body induction sensor U4's detection input end is connected with resistance R4 and resistance R5, resistance R4's the other end is connected the power supply input end of human body induction sensor U4, resistance R5's other end ground connection, human body induction sensor U4's detection input end still has parallelly connected electric capacity C3. The resistor R4 and the resistor R5 are divider resistors, so that the human body induction sensor U4 is convenient to detect voltage, and the capacitor C3 is a filter capacitor.
And a capacitor C2 and a capacitor C4 are connected in parallel between the toggle switch KG1 and the power supply input end of the human body induction sensor U4. The capacitor C2 and the capacitor C4 function as a filter.
The drive circuit includes field effect transistor Q1, and field effect transistor Q1 is N channel field effect transistor, and the model is 2302, the output of self-locking switch SW1 with human body induction sensor U4's control output end parallel connection field effect transistor Q1's grid, field effect transistor Q1's drain electrode is connected output circuit, field effect transistor Q1's source ground connection.
The output circuit comprises an interface J2, the model of J2 is DC 031. The output end of the interface J2 is connected with the LED lamp module, and the input end of the interface J2 is connected with the power supply end and the drain electrode of the field effect transistor Q1.
Referring to fig. 4, the LED control circuit further includes a voltage regulator circuit, the voltage regulator circuit includes a voltage regulator chip U3, the model of the voltage regulator chip U3 is HC7533-H, an input end of the voltage regulator chip U3 is connected to a power supply terminal, and an output end of the voltage regulator chip U3 is connected to an input end of the toggle switch KG 1.
The control output end of the human body induction sensor U4 is connected with a resistor R9 in series, the output end of the self-locking switch SW1 is connected with a resistor R11 in series, the other end of the resistor R9 and the other end of the resistor R11 are connected with the grid of the field-effect tube Q1 in parallel, and a resistor R10 is further connected between the parallel end of the resistor R9 and the parallel end of the resistor R11 and the grid of the field-effect tube Q1 in parallel.
Specifically, when toggle switch KG1 connects human body induction sensor U4, the power supply end output voltage gives steady voltage chip U3, output voltage exports 3.3V voltage after steady voltage chip U3 and gives the power supply of human body induction sensor U4, human body induction sensor U4 senses human body movement signal after, convert 15 bit ADC digital signal through inside, when this 15 bit ADC digital signal surpassed the setting value scope, human body induction sensor U4 can export the low level and give the grid of field effect transistor Q1, thereby make the drain electrode and the source of field effect transistor Q1 cut off, thereby make the return circuit of power supply end, interface J2 and LED lamp module switch on. The human body induction sensor U4 collects the detection voltage between the resistor R4 and the resistor R5, the collected detection voltage is operated by the human body induction sensor U4, and the time of the low level output to the grid electrode of the field effect tube 01 is adjusted according to the operation result, so that the on-off time of the field effect tube Q1 is controlled, and the adjustment of the light emitting time of modules such as LEDs is realized.
The utility model provides a LED control circuit, with switch switching circuit connection inductive switch circuit, the feeder ear switches on to inductive switch circuit's return circuit this moment, and switch switching circuit ends to self-locking switch circuit's return circuit. When the induction switch circuit does not induce a human body, the induction switch circuit outputs an electric signal to the driving circuit, and the driving circuit is in a conducting state, so that a loop of the power supply end, the output circuit and the LED lamp module is cut off, and the LED lamp module is in an off state; when the induction switch circuit induces a human body, the induction switch circuit outputs an electric signal to the driving circuit, the driving circuit is in a turn-off state, so that the power supply end, the output circuit and the loop of the LED lamp module are switched on, and the LED lamp module is in a light-emitting state at the moment. When people walk and move in the corridor at night, the induction switch circuit can automatically induce the human body, and the LED lamp module emits light to illuminate the surrounding environment for people, so that the people can move at night conveniently. The switch switching circuit is connected with the self-locking switch circuit, at the moment, the loop from the power supply end to the self-locking switch circuit is conducted, and the loop from the switch switching circuit to the induction switch circuit is cut off. The self-locking switch circuit enables the driving circuit to be in a conducting state or a switching-off state all the time, and enables the power supply end, the output circuit and the loop of the LED lamp module to be in a conducting state or a switching-off state all the time, so that the LED lamp module is in a light-emitting state or a turning-off state all the time, and people can move in a dark area at night conveniently. The utility model discloses circuit structure is simple, can switch different switch modes through the switch switching circuit, carries out the giving off light of automatic control LED lamp module group and extinguishes through the inductive switch circuit, and it is often bright or often go out to carry out through self-locking switch circuit, has realized the random switch of LED lamp module group, more makes things convenient for people at night the activity.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims (10)

1. An LED control circuit, characterized by: the circuit comprises a switch switching circuit, a self-locking switch circuit and an induction switch circuit, wherein the input end of the switch switching circuit is connected with a power supply end, the output end of the switch switching circuit is connected with the input end of the self-locking switch circuit and the input end of the induction switch circuit, the output end of the self-locking switch circuit and the output end of the induction switch circuit are connected with a driving circuit in parallel, and the output end of the driving circuit is connected with an output circuit;
The input end of the output circuit is connected with the power supply end, the output end of the output circuit is connected with the LED lamp module, the self-locking switch circuit and the induction switch circuit control the on-off of the driving circuit, and therefore the on-off of a loop from the output circuit to the LED lamp module is controlled.
2. An LED control circuit as claimed in claim 1, wherein: the switch switching circuit comprises a toggle switch KG1, and the input end of the toggle switch KG1 is connected with the power supply end.
3. An LED control circuit as claimed in claim 2, wherein: the self-locking switch circuit comprises a self-locking switch SW1, the input end of the self-locking switch SW1 is connected with the output end of the toggle switch KG1, and the output end of the self-locking switch SW1 is connected with the input end of the drive circuit.
4. An LED control circuit according to claim 3, wherein: the inductive switch circuit comprises a human body inductive sensor U4, the power supply input end of the human body inductive sensor U4 is connected with the output end of the toggle switch KG1, and the control output end of the human body inductive sensor U4 is connected with the input end of the drive circuit.
5. An LED control circuit according to claim 4, wherein: the human body induction sensor U4's detection input end is connected with resistance R4 and resistance R5, resistance R4's the other end is connected the power supply input end of human body induction sensor U4, resistance R5's other end ground connection, human body induction sensor U4's detection input end still has parallelly connected electric capacity C3.
6. An LED control circuit according to claim 4, wherein: and a capacitor C2 and a capacitor C4 are connected in parallel between the toggle switch KG1 and the power supply input end of the human body induction sensor U4.
7. An LED control circuit according to claim 4, wherein: the driving circuit comprises a field effect transistor Q1, the output end of the self-locking switch SW1 and the control output end of the human body induction sensor U4 are connected with the grid electrode of the field effect transistor Q1 in parallel, the drain electrode of the field effect transistor Q1 is connected with the output circuit, and the source electrode of the field effect transistor Q1 is grounded.
8. an LED control circuit according to claim 7, wherein; the output circuit comprises an interface J2, the output end of the interface J2 is connected with the LED lamp module, and the input end of the interface J2 is connected with the power supply end and the drain electrode of the field effect transistor Q1.
9. An LED control circuit as claimed in claim 2, wherein: the voltage stabilizing circuit comprises a voltage stabilizing chip U3, the input end of the voltage stabilizing chip U3 is connected with a power supply end, and the output end of the voltage stabilizing chip U3 is connected with the input end of the toggle switch KG 1.
10. An LED control circuit according to claim 7, wherein: the control output end of the human body induction sensor U4 is connected with a resistor R9 in series, the output end of the automatic switch SW1 is connected with a resistor R11 in series, the other end of the resistor R9 and the other end of the resistor R11 are connected with the grid of the field-effect tube Q1 in parallel, and a resistor R10 is further connected between the parallel end of the resistor R9 and the parallel end of the resistor R11 and the grid of the field-effect tube Q1 in parallel.
CN201920252606.2U 2019-02-27 2019-02-27 LED control circuit Active CN209748866U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920252606.2U CN209748866U (en) 2019-02-27 2019-02-27 LED control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920252606.2U CN209748866U (en) 2019-02-27 2019-02-27 LED control circuit

Publications (1)

Publication Number Publication Date
CN209748866U true CN209748866U (en) 2019-12-06

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ID=68708819

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920252606.2U Active CN209748866U (en) 2019-02-27 2019-02-27 LED control circuit

Country Status (1)

Country Link
CN (1) CN209748866U (en)

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