CN210328091U - Light-operated circuit - Google Patents
Light-operated circuit Download PDFInfo
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- CN210328091U CN210328091U CN201920812123.3U CN201920812123U CN210328091U CN 210328091 U CN210328091 U CN 210328091U CN 201920812123 U CN201920812123 U CN 201920812123U CN 210328091 U CN210328091 U CN 210328091U
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Abstract
The utility model provides a light control circuit, including host system (U1), light sense ware (Q1), first electric capacity (C1), third electric capacity (C3), third resistance (R3). The utility model has the advantages that: 1. the light control circuit of the utility model comprises a simple series voltage stabilizing circuit, which ensures that the circuit of the utility model reliably works in a wider voltage range and keeps higher control precision; 2. the utility model discloses a flashing light problem that ambient light appears near critical point when having undulant has been avoided to the light-operated circuit.
Description
Technical Field
The utility model relates to an electronic circuit field especially relates to a light-operated circuit.
Background
With the promotion of energy conservation and emission reduction, the application of the current light control device is more and more extensive. The light control devices in the current market are mostly supplied with AC power, and AC power supply components have authentication requirements in use, are high in cost and incomplete in function, and cannot meet the requirements of users.
SUMMERY OF THE UTILITY MODEL
The utility model provides a light control circuit, which comprises a main control module, a light sensor, a first capacitor, a third capacitor and a third resistor, wherein the GND end of the main control module is connected with a public ground GND;
the TR end of the main control module and the THR end of the main control module are respectively connected with the pin 1 of the light sensor and one end of the third resistor, and the TR end of the main control module is connected with the THR end of the main control module;
the RS end of the main control module is respectively connected with VCC, the 2-pin of the light sensor, the V + end of the main control module and one end of the first capacitor;
the V + end of the main control module is respectively connected with VCC, one end of the first capacitor, the RS end of the main control module and the 2 pins of the light sensor;
the DIS end of the main control module is connected with the output terminal SW of the optical sensor;
the CV end of the main control module is connected with one end of the third capacitor, and the other end of the third capacitor is connected with a common ground GND;
one end of the first capacitor is connected with VCC, the V + end of the main control module, the RS end of the main control module and the 2 pins of the light sensor respectively, and the other end of the first capacitor is connected with a common ground GND;
one end of the third resistor is connected with the TR end of the main control module, the THR end of the main control module and the pin 1 of the light sensor respectively, and the other end of the third resistor is connected with a common ground GND.
The utility model has the advantages that: the utility model discloses a light-operated circuit function is perfect, and the operation is stable, can be used for 6-30V's low pressure DC power supply, does not have the authentication requirement, just the utility model discloses a flashing light problem that ambient light appears near critical point when fluctuating has been avoided to the light-operated circuit.
Drawings
Fig. 1 is a circuit diagram of a first embodiment of the present invention.
Fig. 2 is a circuit diagram of a second embodiment of the present invention.
Fig. 3 is a circuit diagram of a third embodiment of the present invention.
Fig. 4 is a circuit diagram of a fourth embodiment of the present invention.
Fig. 5 is a circuit diagram of a fifth embodiment of the present invention.
Detailed Description
The utility model discloses a light-operated circuit, as shown in figure 1, as the utility model discloses a first embodiment:
the light control circuit comprises a main control module U1, a light sensor Q1, a first capacitor C1, a third capacitor C3 and a third resistor R3, wherein a GND end of the main control module U1 is connected with a common ground GND; the TR end of the main control module U1 and the THR end of the main control module U1 are respectively connected with the pin 1 of the light sensor Q1 and one end of the third resistor R3, and the TR end of the main control module U1 is connected with the THR end of the main control module U1; the RS end of the main control module U1 is respectively connected with VCC, the 2 pin of the light sensor Q1, the V + end of the main control module U1 and one end of the first capacitor C1; the V + end of the main control module U1 is respectively connected with VCC, one end of the first capacitor C1, the RS end of the main control module U1 and the 2-pin of the light sensor Q1; the DIS end of the main control module U1 is connected with the output terminal SW of the optical sensor; the CV end of the master control module U1 is connected with one end of the third capacitor C3, and the other end of the third capacitor C3 is connected with a common ground GND; one end of the first capacitor C1 is connected to VCC, the V + end of the main control module U1, the RS end of the main control module U1, and the 2-pin of the photosensor Q1, respectively, and the other end of the first capacitor C1 is connected to a common ground GND;
one end of the third resistor R3 is respectively connected with the TR end of the main control module U1, the THR end of the main control module U1 and the pin 1 of the light sensor Q1, and the other end of the third resistor R3 is connected with a common ground GND.
As the utility model discloses a second embodiment, on the basis of first embodiment, this light-operated circuit still includes series voltage stabilizing circuit, the series voltage stabilizing circuit input links to each other with the VCC, the series voltage stabilizing circuit output respectively with first electric capacity C1 one end the main control module U1 the V + end main control module U1 the RS end light sense ware Q1's 2 feet link to each other.
As shown in fig. 2, in the second embodiment, the series regulator circuit includes a diode D1, a second transistor Q2, a first resistor R1, and a zener diode ZD1, one end of the diode D1 is connected to VCC and one end of the first resistor R1, and the other end of the diode D1 is connected to a collector of the second transistor Q2; an emitter of the second triode Q2 is respectively connected to one end of the first capacitor C1, the V + end of the main control module U1, the RS end of the main control module U1, and the 2-pin of the optical sensor Q1; the base electrode of the second triode Q2 is respectively connected with the other end of the first resistor R1 and one end of the zener diode ZD 1; one end of the first resistor R1 is connected with VCC and one end of the diode D1 respectively, and the other end of the first resistor R1 is connected with one end of the zener diode ZD1 and the base of the second triode Q2 respectively; the other end of the zener diode ZD1 is connected with a common ground GND; one end of the first capacitor C1 is connected to the emitter of the second transistor Q2, the V + terminal of the main control module U1, the RS terminal of the main control module U1, and the 2-pin of the optical sensor Q1, respectively, and the other end of the first capacitor C1 is connected to a common ground GND.
As shown in fig. 3, as a third embodiment of the present invention, on the basis of the first embodiment, the light control circuit further includes a second capacitor C2, a second resistor R2, and a fifth capacitor C5, wherein one end of the second capacitor C2 is respectively connected to one end of the third resistor R3, the pin 1 of the optical sensor Q1, one end of the second resistor R2, the end of the main control module U1TR, and the end of the main control module U1THR, and the other end of the second capacitor C2 is respectively connected to the other end of the third resistor R3 and the common ground GND; one end of the second resistor R2 is connected to one end of the second capacitor C2, one end of the third resistor R3, the 1 pin of the optical sensor Q1, the end of the main control module U1TR, and the end of the main control module U1THR, and the other end of the second resistor R2 is connected to VCC, the RS end of the main control module U1, the 2 pin of the optical sensor Q1, the V + end of the main control module U1, and one end of the first capacitor C1; one end of the fifth capacitor C5 is connected to the output terminal SW of the optical sensor and the DIS terminal of the main control module U1, respectively, and the other end of the fifth capacitor C5 is connected to the common ground GND.
As the fourth embodiment of the present invention, on the basis of the first embodiment, the optical control circuit further includes a hysteresis enhancement module, the hysteresis enhancement module input end is connected to the O terminal of the main control module U1, the hysteresis enhancement module output end is connected to the TR terminal of the main control module U1, the THR terminal of the main control module U1, the foot of the light sensor Q1, the third resistor R3 one end is connected to each other.
As shown in fig. 4, in a fourth embodiment, the hysteresis enhancement module includes a third transistor Q3, a fourth resistor R4, and a fifth resistor R5, wherein an emitter of the third transistor Q3 is connected to a common ground GND, a collector of the third transistor Q3 is connected to one end of the fourth resistor R4, and a base of the third transistor Q3 is connected to one end of the fifth resistor R5; the other end of the fourth resistor R4 is respectively connected with the TR end of the main control module U1, the THR end of the main control module U1, the pin 1 of the light sensor Q1 and one end of the third resistor R3; the other end of the fifth resistor R5 is connected with the O end of the main control module U1.
As shown in fig. 5, as a fifth embodiment of the present invention, on the basis of the second embodiment, the optical control circuit further includes a second capacitor C2, a second resistor R2, a fifth capacitor C5, and a hysteresis enhancement module, where the hysteresis enhancement module includes a third triode Q3, a fourth resistor R4, and a fifth resistor R5, one end of the second capacitor C2 is respectively connected to one end of the third resistor R3, the pin 1 of the optical sensor Q1, one end of the second resistor R2, the other end of the fourth resistor R4, the end of the main control module U1TR, and the end of the main control module U1THR, and the other end of the second capacitor C2 is respectively connected to the other end of the third resistor R3 and the common ground GND; one end of the second resistor R2 is connected to one end of the second capacitor C2, one end of the third resistor R3, the 1 pin of the optical sensor Q1, the end of the main control module U1TR, the end of the main control module U1THR, and the other end of the fourth resistor R4, and the other end of the second resistor R2 is connected to the RS end of the main control module U1, the 2 pin of the optical sensor Q1, the V + end of the main control module U1, one end of the first capacitor C1, and the emitter of the second triode Q2; one end of the fifth capacitor C5 is respectively connected to the output terminal SW of the optical sensor and the DIS end of the main control module U1, and the other end of the fifth capacitor C5 is connected to the common ground GND; the emitter of the third triode Q3 is connected with the common ground GND, the collector of the third triode Q3 is connected with one end of the fourth resistor R4, and the base of the third triode Q3 is connected with one end of the fifth resistor R5; the other end of the fourth resistor R4 is connected to the TR end of the main control module U1, the THR end of the main control module U1, one end of the second resistor R2, the pin 1 of the optical sensor Q1, one end of the third resistor R3, and one end of the second capacitor C2, respectively; the other end of the fifth resistor R5 is connected with the O end of the main control module U1.
The main control module U1 comprises an NE555 module or an NA555 module or an SA555 module or an SE555 module, and other same type of ICs with the same functions. The NA555 module is a high temperature industrial application version of the NE555 module.
The second resistor R2 is a linear adjusting resistor, the second capacitor C2 plays a role in filtering and resisting disturbance, the third capacitor C3 is a filtering capacitor, and the fifth capacitor C5 plays a role in resisting disturbance and preventing static electricity.
The utility model discloses diode D1, second triode Q2, first resistance R1, zener diode ZD1, first electric capacity C1 in the circuit constitute a simple and easy series voltage stabilizing circuit, can make the reliable work of this circuit in the voltage range of broad and guarantee the stability of light sense check point, and diode D1's addition is the protect function who plays the power supply +/-utmost point and connect when reverse.
The light sensor Q1 may be a photo transistor, a photo resistor or other photosensitive elements, and the current passing through the photo sensor changes when the ambient light changes. When the lamp works, when ambient light is weakened, the current passing through the pole tube Q1 of the light sensor is reduced, the current is converted into voltage through the third resistor R3 and is fed back to the pin 2 of the main control module U1, when the power supply voltage is reduced to one third of the power supply voltage of the U1, the NA555 module is triggered, the pin 3 outputs high level, the pin 7 is in an OC open circuit state, the SW endpoint of the output terminal of the light sensor is disconnected to control the on-off of the light-adjusting power supply, and the controlled lamp is lightened; when the ambient light is enhanced, the current passing through the light sensor Q1 is increased, the current is converted into voltage through the third resistor R3 and is fed back to the pin 6 of the main control module U1, when the voltage is increased to two thirds of the power supply voltage of the U1, the NA555 module is set to be 0, the pin 3 outputs low level, the pin 7 is in an internal triode ground connection state, the power supply is controlled to be turned off through the SW endpoint, and the controlled lamp is turned off. Because the characteristic of NE555 module output itself, the level that needs when putting 1 is put the twice of 0 to make the ambient light intensity of turning off the lamp be twice of the ambient light intensity of turning on the lamp, form a hysteresis function, avoided the flashing light problem that the ambient light appears when there is the fluctuation near the critical point. Fifth resistance R5, third triode Q3, fourth resistance R4 have constituteed a hysteresis reinforcing function, after the light, the NA555 module triggers, 3 foot output high level, third triode Q3 switches on, merge fourth resistance R4 into third resistance R3, make voltage conversion sampling resistance reduce, the through current of light sensor Q1 will increase more, the signal of the 6 feet of feeding back master control module U1 can reach two-thirds U1 supply voltage put 0 level, thereby realize the hysteresis reinforcing function, make the ambient light intensity of turning off the light can be more than the twice of the ambient light intensity of turning on the light.
The utility model has the advantages that: 1. the utility model discloses a light-operated circuit includes simple and easy series voltage stabilizing circuit, and this simple and easy series voltage stabilizing circuit makes the utility model discloses a reliable work of circuit guarantees the stability of light sense check point in the wider voltage range to keep higher control accuracy, and the reference voltage CV of host system U1 is the reference voltage who provides the comparator that the THR corresponds, generally is two-thirds of V +, does not add the steady voltage and can work, but the check point can change along with the change of V +; 2. the utility model discloses a light-operated circuit has the backset and the reinforcing function that backset, has avoided the flashing light problem that ambient light appears near critical point when undulant.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (8)
1. An optical control circuit, comprising: comprises a main control module (U1), a light sensor (Q1), a first capacitor (C1), a third capacitor (C3) and a third resistor (R3),
the GND end of the main control module (U1) is connected with a common ground GND;
the TR end of the main control module (U1) and the THR end of the main control module (U1) are respectively connected with the 1 pin of the light sensor (Q1) and one end of the third resistor (R3), and the TR end of the main control module (U1) is connected with the THR end of the main control module (U1);
the RS end of the main control module (U1) is respectively connected with VCC, the 2-pin of the light sensor (Q1), the V + end of the main control module (U1) and one end of the first capacitor (C1);
the V + end of the main control module (U1) is respectively connected with VCC, one end of the first capacitor (C1), the RS end of the main control module (U1) and the 2-pin of the light sensor (Q1);
the DIS end of the main control module (U1) is connected with the output terminal SW of the optical sensor;
the CV end of the master control module (U1) is connected with one end of the third capacitor (C3), and the other end of the third capacitor (C3) is connected with a common ground GND;
one end of the first capacitor (C1) is respectively connected with VCC, the V + end of the main control module (U1), the RS end of the main control module (U1) and the 2-pin of the light sensor (Q1), and the other end of the first capacitor (C1) is connected with a common ground GND;
one end of the third resistor (R3) is respectively connected with the TR end of the main control module (U1), the THR end of the main control module (U1) and the pin 1 of the light sensor (Q1), and the other end of the third resistor (R3) is connected with a common ground GND.
2. The light control circuit of claim 1, wherein: the light control circuit further comprises a series voltage stabilizing circuit, the input end of the series voltage stabilizing circuit is connected with VCC, and the output end of the series voltage stabilizing circuit is connected with one end of the first capacitor (C1), the V + end of the main control module (U1), the RS end of the main control module (U1) and the 2 pins of the light sensor (Q1) respectively.
3. The light control circuit of claim 2, wherein: the series voltage stabilizing circuit comprises a diode (D1), a second triode (Q2), a first resistor (R1) and a zener diode (ZD1), wherein one end of the diode (D1) is respectively connected with VCC and one end of the first resistor (R1), and the other end of the diode (D1) is connected with a collector of the second triode (Q2);
an emitter of the second triode (Q2) is respectively connected with one end of the first capacitor (C1), the V + end of the main control module (U1), the RS end of the main control module (U1) and the 2-pin of the light sensor (Q1);
the base electrode of the second triode (Q2) is respectively connected with the other end of the first resistor (R1) and one end of the zener diode (ZD 1);
one end of the first resistor (R1) is respectively connected with VCC and one end of the diode (D1), and the other end of the first resistor (R1) is respectively connected with one end of the voltage-stabilizing diode (ZD1) and the base of the second triode (Q2);
the other end of the voltage stabilizing diode (ZD1) is connected with a common ground GND;
one end of the first capacitor (C1) is respectively connected with the emitter of the second triode (Q2), the V + end of the main control module (U1), the RS end of the main control module (U1) and the 2-pin of the light sensor (Q1), and the other end of the first capacitor (C1) is connected with a common ground GND.
4. The light control circuit of claim 1, wherein: the light control circuit also comprises a second capacitor (C2), a second resistor (R2) and a fifth capacitor (C5),
one end of the second capacitor (C2) is respectively connected with one end of the third resistor (R3), the pin 1 of the light sensor (Q1), one end of the second resistor (R2), the TR end of the main control module (U1) and the THR end of the main control module (U1), and the other end of the second capacitor (C2) is respectively connected with the other end of the third resistor (R3) and the common ground GND;
one end of the second resistor (R2) is connected with one end of the second capacitor (C2), one end of the third resistor (R3), the 1 pin of the light sensor (Q1), the TR end of the main control module (U1) and the THR end of the main control module (U1) respectively, and the other end of the second resistor (R2) is connected with VCC, the RS end of the main control module (U1), the 2 pin of the light sensor (Q1), the V + end of the main control module (U1) and one end of the first capacitor (C1) respectively;
one end of the fifth capacitor (C5) is respectively connected with the output terminal SW of the light sensor and the DIS end of the main control module (U1), and the other end of the fifth capacitor (C5) is connected with the common ground GND.
5. The light control circuit of claim 1, wherein: the optical control circuit further comprises a hysteresis enhancement module, wherein the input end of the hysteresis enhancement module is connected with the O end of the main control module (U1), and the output end of the hysteresis enhancement module is respectively connected with the TR end of the main control module (U1), the THR end of the main control module (U1), the 1 pin of the light sensor (Q1) and one end of the third resistor (R3).
6. The light control circuit of claim 5, wherein: the hysteresis enhancement module comprises a third triode (Q3), a fourth resistor (R4) and a fifth resistor (R5),
the emitter of the third triode (Q3) is connected with the common ground GND, the collector of the third triode (Q3) is connected with one end of the fourth resistor (R4), and the base of the third triode (Q3) is connected with one end of the fifth resistor (R5);
the other end of the fourth resistor (R4) is respectively connected with the TR end of the main control module (U1), the THR end of the main control module (U1), the pin 1 of the light sensor (Q1) and one end of the third resistor (R3);
the other end of the fifth resistor (R5) is connected with the O end of the main control module (U1).
7. The light control circuit of claim 3, wherein: the optical control circuit also comprises a second capacitor (C2), a second resistor (R2), a fifth capacitor (C5) and a hysteresis enhancing module, wherein the hysteresis enhancing module comprises a third triode (Q3), a fourth resistor (R4) and a fifth resistor (R5),
one end of the second capacitor (C2) is respectively connected with one end of the third resistor (R3), the pin 1 of the light sensor (Q1), one end of the second resistor (R2), the other end of the fourth resistor (R4), the TR end of the main control module (U1) and the THR end of the main control module (U1), and the other end of the second capacitor (C2) is respectively connected with the other end of the third resistor (R3) and the common ground GND;
one end of the second resistor (R2) is connected to one end of the second capacitor (C2), one end of the third resistor (R3), the 1 pin of the optical sensor (Q1), the TR end of the main control module (U1), the THR end of the main control module (U1), and the other end of the fourth resistor (R4), and the other end of the second resistor (R2) is connected to the RS end of the main control module (U1), the 2 pin of the optical sensor (Q1), the V + end of the main control module (U1), one end of the first capacitor (C1), and the emitter of the second triode (Q2);
one end of the fifth capacitor (C5) is respectively connected with the output terminal SW of the optical sensor and the DIS end of the main control module (U1), and the other end of the fifth capacitor (C5) is connected with a common ground GND;
the emitter of the third triode (Q3) is connected with the common ground GND, the collector of the third triode (Q3) is connected with one end of the fourth resistor (R4), and the base of the third triode (Q3) is connected with one end of the fifth resistor (R5);
the other end of the fourth resistor (R4) is respectively connected with the TR end of the main control module (U1), the THR end of the main control module (U1), one end of the second resistor (R2), the pin 1 of the light sensor (Q1), one end of the third resistor (R3) and one end of the second capacitor (C2);
the other end of the fifth resistor (R5) is connected with the O end of the main control module (U1).
8. The light control circuit of any of claims 1 to 7, wherein: the main control module (U1) comprises an NE555 module, an NA555 module, an SA555 module or an SE555 module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920812123.3U CN210328091U (en) | 2019-05-31 | 2019-05-31 | Light-operated circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920812123.3U CN210328091U (en) | 2019-05-31 | 2019-05-31 | Light-operated circuit |
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| CN210328091U true CN210328091U (en) | 2020-04-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110139446A (en) * | 2019-05-31 | 2019-08-16 | 深圳市奋勇光电有限公司 | A kind of light-operated circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110139446A (en) * | 2019-05-31 | 2019-08-16 | 深圳市奋勇光电有限公司 | A kind of light-operated circuit |
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