CN215871921U - Linear stroboflash-free induction LED circuit and LED lamp - Google Patents
Linear stroboflash-free induction LED circuit and LED lamp Download PDFInfo
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- CN215871921U CN215871921U CN202121041480.8U CN202121041480U CN215871921U CN 215871921 U CN215871921 U CN 215871921U CN 202121041480 U CN202121041480 U CN 202121041480U CN 215871921 U CN215871921 U CN 215871921U
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Abstract
The utility model discloses a linear stroboflash-free induction LED circuit, which comprises a rectifying circuit, and a linear adjustment driving circuit, an induction driving circuit and an LED module which are respectively connected with the rectifying circuit, wherein the rectifying circuit is used for converting alternating current commercial power into direct current to respectively supply power to the linear adjustment driving circuit, the induction driving circuit and the LED module in an adaptive manner; the linear adjustment driving circuit is respectively connected with the induction driving circuit and the LED module, the linear adjustment driving circuit is used for keeping the current flowing through the LED module constant, and the induction driving circuit is used for collecting induction signals to control the on-off of the linear adjustment driving circuit; the utility model also discloses an LED lamp, which comprises an LED lamp body and a linear stroboflash-free induction LED circuit, wherein the linear stroboflash-free induction LED circuit is arranged inside the LED lamp body. The utility model has the advantages of high reliability, simple circuit structure, low cost and high intelligent degree.
Description
Technical Field
The utility model relates to the field of LED illumination, in particular to a linear stroboflash-free induction LED circuit and an LED lamp.
Background
With the aging of LED technology, the market scope of LED technology is further expanded. The application range of LED lamps is becoming wider and wider, and the LED lamps become an indispensable member of lighting products, both in business and household life.
The traditional LED photoelectric integrated scheme mostly adopts a linear scheme, the linear adjustment rate of the scheme is low, the input power changes along with the change of input voltage, and for a high-power LED product, when the linear scheme is adopted during high-voltage input, the power is increased along with the rapid increase of temperature rise, and the stress of a device is aggravated and is easy to fail and damage; meanwhile, the traditional LED induction lamp is driven by a switching power supply chip, the circuit is complex, and the cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a linear stroboflash-free induction LED circuit with high linear adjustment rate and an LED lamp, and simultaneously realizing the stroboflash-free light effect and the function of an induction switch, and has the advantages of high reliability, simple circuit structure, low cost and high intelligent degree.
In order to solve the technical problem, the utility model provides a linear non-stroboscopic induction LED circuit, which is characterized in that: the LED power supply comprises a rectifying circuit, and a linear adjustment driving circuit, an induction driving circuit and an LED module which are respectively connected with the rectifying circuit, wherein the rectifying circuit is used for converting alternating current commercial power into direct current to respectively supply power to the linear adjustment driving circuit, the induction driving circuit and the LED module;
the linear adjustment driving circuit is further connected with the induction driving circuit and the LED module respectively, the linear adjustment driving circuit is used for keeping the current flowing through the LED module constant, and the induction driving circuit is used for collecting induction signals to control the on-off of the linear adjustment driving circuit.
As an improvement of the above scheme, the LED module includes a main lamp string group and an auxiliary lamp string group, one end of the main lamp string group is connected to the output end of the rectifying circuit, the input end of the linear adjustment driving circuit and the first input end of the induction driving circuit, the other end of the main lamp string group is connected to one end of the auxiliary lamp string group and the first output end of the linear adjustment driving circuit, and the other end of the auxiliary lamp string group is connected to the second output end of the linear adjustment driving circuit;
the linear adjustment driving circuit is specifically used for controlling the on or off of the first output end and the second output end of the linear adjustment driving circuit according to the acquired input voltage of the linear adjustment driving circuit.
As an improvement of the above scheme, each of the main string light group and the auxiliary string light group includes a plurality of light emitting diodes connected in series in sequence, and a ratio of the number of the light emitting diodes of the main string light group to the number of the light emitting diodes of the auxiliary string light group is 11: 3 or 12: 2.
as an improvement of the above scheme, the linear adjustment driving circuit includes a voltage sampling module and at least one linear adjustment driving module, a sampling end of the linear adjustment driving module is connected to the second input end of the induction driving circuit, and is respectively connected to an output end of the rectifying circuit, a first input end of the induction driving circuit, and one end of the main lamp string group through the voltage sampling module, a first output end of the linear adjustment driving module is connected to the other end of the main lamp string group, and a second output end of the linear adjustment driving module is connected to the other end of the auxiliary lamp string group;
the linear adjustment driving module is used for controlling a first output end and a second output end of the linear adjustment driving module to be simultaneously started when the input voltage acquired by the voltage sampling module is equal to a preset second threshold value, controlling the first output end of the linear adjustment driving module to be started and controlling the second output end of the linear adjustment driving module to be turned off when the input voltage is smaller than the preset first threshold value, and controlling the first output end of the linear adjustment driving module to be turned off and controlling the second output end of the linear adjustment driving module to be turned on when the input voltage is larger than a preset third threshold value; wherein the first threshold is less than the second threshold, which is less than the third threshold; the first output end of the linear adjustment driving module is the first output end of the linear adjustment driving circuit, and the second output end of the linear adjustment driving module is the second output end of the linear adjustment driving circuit.
As an improvement of the above scheme, the linear adjustment driving module includes a linear adjustment driving chip and an output current control module, and the linear adjustment driving chip is provided with a linear adjustment sampling pin, a linear adjustment grounding pin, a linear adjustment current control pin, a first linear adjustment output pin and a second linear adjustment output pin;
the linear adjustment sampling pin is respectively connected with the output end of the rectifying circuit, the first input end of the induction driving circuit and one end of the main lamp string group through the voltage sampling module; the voltage sampling module comprises a power supply resistor group and a power supply capacitor, one end of the power supply resistor group is connected with the output end of the rectifying circuit, the first input end of the induction driving circuit and one end of the main lamp string group, and the other end of the power supply resistor group is connected with the linear adjustment sampling pin and is grounded through the power supply capacitor;
the linear adjustment grounding pin is grounded;
the linear adjustment current control pin is grounded through the output current control module, and the output current control module comprises a control resistor;
the first linear adjustment output pin is connected with the other end of the main lamp string group;
and the second linear adjustment output pin is connected with the other end of the auxiliary lamp string group.
As an improvement of the above scheme, the induction driving circuit includes an induction power supply circuit and an induction switch circuit that are connected to each other, the induction power supply circuit is further connected to the rectifying circuit, the linear adjustment driving circuit and the LED module, and the induction switch circuit is further connected to the linear adjustment driving circuit and the ground.
As an improvement of the above scheme, the induction power supply circuit includes a voltage conversion chip, and an input voltage division module and an output adjustment filtering module respectively connected to the voltage conversion chip, where the voltage conversion chip is provided with an input voltage pin, an output voltage pin, and an output voltage adjustment pin;
the input voltage pin is respectively connected with the output end of the rectifying circuit, the input end of the linear adjustment driving circuit and one end of the LED module through the input voltage dividing module; the input voltage division module comprises a first voltage division resistor and a second voltage division resistor, one end of the first voltage division resistor is respectively connected with the output end of the rectifying circuit, the input end of the linear adjustment driving circuit and one end of the LED module, and the other end of the first voltage division resistor is connected with the input voltage pin and is grounded through the second voltage division resistor;
the output voltage pin is respectively connected with the inductive switch circuit and the ground through the output adjusting and filtering module; the output adjusting filter module comprises a first filter resistor, a second filter resistor and an electrolytic capacitor, one end of the first filter resistor is connected with the output voltage pin, one end of the electrolytic capacitor and the inductive switch circuit, the other end of the first filter resistor is grounded through the second filter resistor, and the other end of the electrolytic capacitor is grounded;
the output voltage adjusting pin is respectively connected with the inductive switch circuit and the ground through the output adjusting filtering module; one end of the second filter resistor is connected with the output voltage adjusting pin and the other end of the first filter resistor.
As an improvement of the above scheme, the inductive switch circuit comprises an inductive module, and a current-limiting voltage-stabilizing module and a switch module which are respectively connected with the inductive module, wherein the inductive module is provided with an inductive power supply pin, an inductive output pin and an inductive grounding pin;
the induction power supply pin is respectively connected with the induction power supply circuit and the ground through the current-limiting voltage-stabilizing module; the current-limiting voltage-stabilizing module comprises a voltage-stabilizing resistor and a voltage-stabilizing diode, one end of the voltage-stabilizing resistor is connected with the induction power supply circuit, the other end of the voltage-stabilizing resistor is connected with the induction power supply pin, the cathode of the voltage-stabilizing diode is connected with the induction power supply pin, and the anode of the voltage-stabilizing diode is grounded;
the induction output pin is respectively connected with the linear adjustment driving circuit and the ground through the switch module; the switch module comprises a control resistor and an NPN triode, one end of the control resistor is connected with the induction output pin, the other end of the control resistor is grounded, the base electrode of the NPN triode is connected with the induction output pin, the collector electrode of the NPN triode is connected with the linear adjustment driving circuit, and the emitter electrode of the NPN triode is grounded;
the inductive ground pin is grounded.
As an improvement of the scheme, the rectification circuit comprises a live wire terminal, a zero line terminal, a voltage stabilizing module, a rectification module and a filtering module, the input positive end of the rectification module is connected with the live wire terminal through the voltage stabilizing module, the input reverse end of the rectification module is connected with the zero line terminal through the voltage stabilizing module, the output positive end of the rectification module is respectively connected with the input end of the linear adjustment driving circuit, the first input end of the induction driving circuit and one end of the LED module through the filtering module, and the output negative end of the rectification module is grounded.
Correspondingly, the utility model further provides the LED lamp, the LED lamp comprises an LED lamp body and the linear stroboflash-free induction LED circuit, and the linear stroboflash-free induction LED circuit is arranged inside the LED lamp body.
The beneficial effects of the implementation of the utility model are as follows:
according to the utility model, the output power can be kept constant through the linear adjustment driving circuit so as to supply power to the LED module in a matching way, so that the linear adjustment rate is improved, the LED module cannot be burnt out due to overlarge power, and the reliability is higher;
according to the LED lamp, the frequency of the LED module can be removed through the linear adjustment driving circuit, so that a stroboscopic-free light effect is achieved;
compared with the driving mode of the traditional photoelectric switching power supply circuit, the LED driving circuit has the advantages that the circuit structure is simpler, and meanwhile, the cost is lower;
the utility model realizes the function of the inductive switch of the LED lamp through the inductive driving circuit, and has higher intelligent degree.
Drawings
FIG. 1 is a schematic circuit block diagram of a linear non-strobe sensing LED circuit according to the present invention;
FIG. 2 is a circuit diagram of a first embodiment of a linear strobe-free induction LED circuit of the present invention;
FIG. 3 is a circuit diagram of a second embodiment of a linear strobe-free induction LED circuit of the present invention;
FIG. 4 is a circuit diagram of a third embodiment of a linear strobe-free induction LED circuit of the present invention;
FIG. 5 is a circuit diagram of a fourth embodiment of a linear strobe-free induction LED circuit of the present invention;
fig. 6 is a schematic structural diagram of the LED lamp of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the linear non-strobe sensing LED circuit 5 of the present invention includes a rectifying circuit 1, and a linear adjusting driving circuit 2, an sensing driving circuit 3, and an LED module 4 respectively connected to the rectifying circuit 1, where the linear adjusting driving circuit 2 is further connected to the sensing driving circuit 3 and the LED module 4 respectively.
When the linear adjustment driving circuit works, the rectifying circuit 1 is used for converting alternating current commercial power into direct current and respectively supplying power to the linear adjustment driving circuit 2, the induction driving circuit 3 and the LED module 4 in an adaptive mode; the linear adjustment driving circuit 2 is used for keeping the current flowing through the LED module constant, so that the linear adjustment rate is improved, and the non-stroboscopic effect is realized; the induction driving circuit 3 is used for acquiring induction signals to control the on-off of the linear adjustment driving circuit 2.
Specifically, linear adjustment drive circuit 2 is equipped with great input voltage scope, can output the output current that the amplitude that does not receive the input voltage change is stable basically in order to carry out the adaptation power supply to LED module 4 simultaneously, make power keep invariable, thereby improve linear adjustment rate and realize not having stroboscopic light effect, response drive circuit 3 is used for gathering external inductive signal like signals such as infrared ray, light and microwave and with the break-make of control linear adjustment drive circuit 2, thereby further realize the bright operation of going out of LED module 4.
It should be noted that the linear adjustment driving circuit 2 includes a voltage sampling module and a single or a plurality of linear adjustment driving modules connected in parallel, the linear adjustment driving module includes a linear adjustment driving chip and an output current control module connected with the linear adjustment driving chip, the LED light string includes a main light string group and an auxiliary light string group, the main light string group and the auxiliary light string group each include a plurality of light emitting diodes connected in series in sequence, the ratio of the number of the light emitting diodes of the main light string group to the number of the light emitting diodes of the auxiliary light string group is 11: 3 or 12: 2.
in order to better explain the working principle of the linear non-stroboscopic sensing LED circuit 5 of the present invention, the number of the linear adjustment driving module, the light emitting diodes of the main string set and the light emitting diodes of the auxiliary string set is limited below, which is only better explained for the above principle, and is not taken as a numerical limitation, and can be increased or decreased according to the actual situation.
Further, the following was analyzed in four examples:
as shown in fig. 2, the linear adjustment driving circuit 2 according to the first embodiment of the present invention includes a single linear adjustment driving module, and the LED module 4 includes a main lamp string group and an auxiliary lamp string group, where the main lamp string group includes 12 light emitting diodes, and the auxiliary lamp string group includes 2 light emitting diodes.
First, rectifier circuit 1
The rectification circuit 1 comprises a live wire terminal L, a zero line terminal N, a voltage stabilizing module, a rectification module and a filtering module. Specifically, the method comprises the following steps:
the rectifying module comprises a rectifying bridge DB1, wherein an input positive terminal AC, an input reverse terminal AC, an output positive terminal V + and an output negative terminal V-are arranged on the rectifying bridge DB 1.
The voltage stabilizing module comprises a fuse resistor FR1 and a voltage dependent resistor R9, wherein the fuse resistor FR1 is used for short-circuit protection, and the voltage dependent resistor R9 is used for overvoltage protection.
The filter module comprises an electrolytic capacitor CE1, wherein the electrolytic capacitor CE1 is used for filtering noise of the output positive terminal V +.
The input positive terminal AC is connected with the live wire terminal L through a safety resistor FR1, and is respectively connected with the zero line terminal N and the input reverse terminal AC through a voltage dependent resistor R9, and the output positive terminal V + is respectively connected with the linear adjustment driving circuit 2, the induction driving circuit 3 and the LED module 4, and is respectively connected with the output negative terminal V-and the ground through an electrolytic capacitor CE 1.
When the linear adjustment driving circuit works, the rectifying circuit 1 is used for converting alternating current commercial power into direct current and respectively supplying power to the linear adjustment driving circuit 2, the induction driving circuit 3 and the LED module 4 in a matching way.
It should be noted that, here is only a specific implementation manner of the rectifier circuit 1, and the embodiment of the present invention does not limit the specific structure of the rectifier circuit 1, for example, the rectifier circuit 1 may also be configured to only include a live wire terminal L, a neutral wire terminal N, and a rectifier module, which is not described herein again.
Two, linear regulation driving circuit 2
The linear adjustment driving circuit 2 is used for keeping the current flowing through the LED module 4 constant. Specifically, the linear adjustment driving circuit 2 is specifically configured to control the on or off of the first output terminal and the second output terminal thereof according to the collected input voltage thereof, so as to constantly flow the current through the LED module 4.
The linear adjustment driving circuit 2 comprises a voltage sampling module and a single linear adjustment driving module, wherein a sampling end of the linear adjustment driving module is connected with a second input end of the induction driving circuit, and is respectively connected with an output end of the rectifying circuit, a first input end of the induction driving circuit and one end of the main lamp string group through the voltage sampling module, a first output end of the linear adjustment driving module is connected with the other end of the main lamp string group in the LED module 4, and a second output end of the linear adjustment driving module is connected with the other end of the auxiliary lamp string group in the LED module 4. The linear adjustment driving module is used for controlling a first output end and a second output end of the linear adjustment driving module to be simultaneously started when the input voltage acquired by the voltage sampling module is equal to a preset second threshold value, controlling the first output end of the linear adjustment driving module to be started and controlling the second output end of the linear adjustment driving module to be turned off when the input voltage is smaller than the preset first threshold value, and controlling the first output end of the linear adjustment driving module to be turned off and controlling the second output end of the linear adjustment driving module to be turned on when the input voltage is larger than a preset third threshold value; wherein the first threshold is less than the second threshold, which is less than the third threshold; the input end of the voltage sampling module is the input end of the linear adjustment driving circuit 2, the first output end of the linear adjustment driving module is the first output end of the linear adjustment driving circuit, and the second output end of the linear adjustment driving module is the second output end of the linear adjustment driving circuit.
Further, the linear adjustment driving module comprises a linear adjustment driving chip U1 and an output current control module connected with the linear adjustment driving chip U1. Specifically, the method comprises the following steps:
the linear adjustment driving chip U1 is provided with a linear adjustment sampling pin VT, a linear adjustment ground pin GND, a linear adjustment current control pin REXT, a first linear adjustment output pin OUT1, and a second linear adjustment output pin OUT 2. It should be noted that the linear adjustment sampling pin VT is a sampling terminal of the linear adjustment driving module, the first linear adjustment output pin OUT1 is a first output terminal of the linear adjustment driving module, and the second linear adjustment output pin OUT2 is a second output terminal of the linear adjustment driving module.
Preferably, the linear adjustment driving chip U1 can be a chip with model number SM2386, but not limited to this, and an appropriate model number can be selected according to actual situations.
The voltage sampling module comprises a resistor R1, a resistor R2 and a power supply capacitor C1 which are sequentially connected in series, wherein the resistor R1 and the resistor R2 are mutually connected in series to form a power supply resistor group and used for detecting input voltage, and the power supply capacitor C1 is used for filtering noise waves on a linear adjustment sampling pin VT.
The output current control module comprises a resistor R5, wherein the resistor R5 is used for adjusting the size of the output current.
The linear adjustment sampling pin VT is connected with the induction driving circuit 3, is connected with the ground through a power supply capacitor C1, is further connected with the rectifying circuit 1, the induction driving circuit 3 and the LED module 4 through a resistor R1 and a resistor R2 which are sequentially connected in series, is connected with the ground through a resistor R5, and is connected with the LED module 4 through a first linear adjustment output pin OUT1 and a second linear adjustment output pin OUT 2.
Further, the linear adjustment sampling pin VT is connected to the positive output terminal V + of the rectifier circuit 1, the inductive driving circuit 3 and the LED module 4 through a resistor R1 and a resistor R2 connected in series in sequence.
During operation, the linear adjustment driving chip U1 samples the input voltage through the resistor R1 and the resistor R2, and when the input voltage is within the input voltage range of the linear adjustment driving chip U1, the linear adjustment driving chip U1 outputs a substantially constant current to adaptively supply power to the LED module 4, thereby ensuring that the power of the whole circuit is constant and does not change with the change of the input voltage.
Further, when the input voltage is equal to a preset second threshold, the first and second linear adjustment output pins OUT1 and OUT2 are turned on simultaneously; when the input voltage is less than a preset first threshold, the first linear adjustment output pin OUT1 is turned on, and the second linear adjustment output pin OUT2 is turned off; when the input voltage is greater than a preset third threshold, the first linear adjustment output pin OUT1 is turned off, and the second linear adjustment output pin OUT2 is turned on. It can be understood that, in actual operation, when the input voltage drops from the second threshold to below the first threshold, the current flowing through the second linear adjustment output pin OUT2 gradually decreases and approaches zero, and at this time, the first linear adjustment output pin OUT1 is turned on and the second linear adjustment output pin OUT2 is turned off; when the input voltage rises from the second threshold to be higher than the third threshold, the current flowing through the first linear adjustment output pin OUT1 gradually decreases and approaches zero, at this time, the first linear adjustment output pin OUT1 is turned off, and the second linear adjustment output pin OUT2 is turned on; by the method, the linear adjustment rate can be effectively improved, and the effect of the stroboscopic-free light effect can be realized; meanwhile, compared with the traditional driving mode of the switching power supply circuit, the circuit structure is simpler, and the cost is lower; moreover, the constant current supplies power to the LED module 4 in a matched mode, the LED module 4 can be prevented from being damaged due to large input voltage change, and the reliability is higher.
Third, the induction drive circuit 3
The induction driving circuit 3 comprises an induction power supply circuit and an induction switch circuit which are connected with each other, the induction power supply circuit is further connected with the rectifying circuit 1, the linear adjustment driving circuit 2 and the LED module 4 respectively, and the induction switch circuit 3 is further connected with the linear adjustment driving circuit 2 and the ground respectively. In some embodiments, the input end of the inductive power supply circuit is connected to the output end of the rectifying circuit 1, the input end of the linear adjustment driving circuit 2 and one end of the LED module 4, respectively, the output end of the inductive power supply circuit is connected to the first end of the inductive switch circuit, the second end of the inductive switch circuit is connected to the linear adjustment driving circuit 2, and the third end of the inductive switch circuit is grounded; the input end of the inductive power supply circuit is the first input end of the inductive driving circuit 3, and the second end of the inductive switching circuit is the second input end of the inductive driving circuit 3. Further, the air conditioner is provided with a fan,
the induction power supply circuit comprises a voltage conversion chip U2, and an input voltage division module and an output adjustment filtering module which are respectively connected with the voltage conversion chip U2. Specifically, the method comprises the following steps:
the voltage conversion chip U2 is provided with an input voltage pin Vin, an output voltage pin Vout, and an output voltage adjustment pin ADJ. The output voltage pin Vout is an output end of the induction power supply circuit; the type of the voltage conversion chip U2 may be set according to practical requirements, for example, the model of the voltage conversion chip is AMS1117 chip, which is not limited in the present invention.
The input voltage dividing module comprises a first voltage dividing resistor R3 and a second voltage dividing resistor R6, one end of the first voltage dividing resistor R3 is respectively connected with the rectifying circuit 1, the linear adjustment driving circuit 2 and the LED module 4, the other end of the first voltage dividing resistor R3 is connected with the input voltage pin Vin and is grounded through the second voltage dividing resistor R6, and the first voltage dividing resistor R3 and the second voltage dividing resistor R6 are used for dividing voltage on the input voltage pin Vin. It is understood that one end of the first voltage-dividing resistor R3 is an input end of the inductive power supply circuit.
The output adjusting and filtering module comprises a first filtering resistor R4, a second filtering resistor R8 and an electrolytic capacitor CE2, wherein one end of the first filtering resistor R4 is connected with the output voltage pin Vout, one end of the electrolytic capacitor CE2 and the inductive switch circuit, the other end of the first filtering resistor R4 is grounded through the second filtering resistor R8 and connected with the output voltage adjusting pin ADJ, and the other end of the electrolytic capacitor CE2 is grounded, wherein the first filtering resistor R4 and the second filtering resistor R8 are used for adjusting the voltage on the output voltage pin Vout, and the electrolytic capacitor CE2 is used for filtering noise waves on the output voltage pin Vout.
The input voltage pin Vin is connected to the rectifying circuit 1, the linear adjustment driving circuit 2, and the LED module 4 through a first voltage dividing resistor R3, and is connected to ground through a second voltage dividing resistor R6, the output voltage pin Vout is connected to the inductive switch circuit, and is connected to the output voltage adjustment pin ADJ through a first filter resistor R4, and is also connected to ground through an electrolytic capacitor CE2, and the output voltage adjustment pin ADJ is connected to ground through a second filter resistor R8.
Further, the input voltage pin is connected to the positive output terminal V + of the rectifier circuit 1, one end of the resistor R1 of the linear constant current driving circuit 2, and one end of the LED module 4 through the first voltage dividing resistor R3.
When the power supply circuit works, the output voltage of the rectifying circuit 1 is converted into the output voltage which is adaptively supplied to the inductive switch circuit by the inductive power supply circuit.
The induction switch circuit comprises an induction module J1, and a current-limiting voltage-stabilizing module and a switch module which are respectively connected with the induction module J1. Specifically, the method comprises the following steps:
the induction module J1 is provided with an induction power supply pin VCC, an induction output pin OUT and an induction grounding pin GND, the induction power supply pin VCC is respectively connected with the induction power supply circuit and the ground through the current-limiting voltage-stabilizing module, the induction output pin OUT is respectively connected with the linear adjustment driving circuit 2 and the ground through the switch module, and the induction grounding pin GND is grounded.
The current-limiting voltage-stabilizing module comprises a voltage-stabilizing resistor R7 and a voltage-stabilizing diode ZD1, one end of the voltage-stabilizing resistor R7 is connected with an induction power supply circuit, the other end of the voltage-stabilizing resistor R7 is connected with an induction power supply pin VCC, one end of the voltage-stabilizing diode ZD1 is connected with the induction power supply pin VCC, the other end of the voltage-stabilizing diode ZD1 is grounded, wherein the voltage-stabilizing resistor R7 is used for limiting the current of the induction power supply pin, and the voltage-stabilizing diode ZD1 is used for overvoltage protection.
The switching module comprises a control resistor R10 and an NPN triode Q1, one end of the control resistor R10 is connected with an induction output pin OUT, the other end of the control resistor R10 is grounded, the base electrode of the NPN triode Q1 is connected with the induction output pin OUT, the collector electrode of the NPN triode Q1 is connected with the linear adjustment driving circuit 2, the emitter electrode of the NPN triode Q1 is grounded, the control resistor R10 is used for improving the switching speed of the NPN triode Q1, and the NPN triode Q1 is used as a switching tube.
The induction power supply pin VCC is connected with an induction power supply circuit through a voltage stabilizing resistor R7 and is connected with the ground through a voltage stabilizing diode ZD1, the induction output pin OUT is connected with the base of an NPN triode Q1 and is connected with the ground through a resistor R10, the collector of the NPN triode Q1 is connected with the linear adjustment driving circuit 2, and the emitter of the NPN triode Q1 and the induction grounding pin GND are connected with the ground.
Further, the inductive power supply pin is connected with an output voltage pin Vout of the inductive power supply circuit through a voltage stabilizing resistor R7, and a collector of the NPN triode Q1 is connected with a linear adjustment sampling pin VT of the linear adjustment driving circuit 2. It can be understood that one end of the voltage regulator resistor R7 is a first end of the inductive switch circuit, the collector of the NPN transistor Q1 is a second end of the inductive switch circuit, and the emitter of the NPN transistor Q1 is a third end of the inductive switch circuit.
When the linear adjustment driving circuit 2 works, the inductive power supply circuit, the inductive switch circuit and the linear adjustment driving circuit 2 are combined for analysis, when an inductive signal is collected by the inductive module J1, the inductive output pin OUT outputs a low level, the NPN triode Q1 is cut off, the linear adjustment driving circuit 2 is normally started, when the inductive signal is not collected by the inductive module J1, the inductive output pin OUT outputs a high level, the NPN triode Q1 is switched on, and the linear adjustment driving circuit 2 is switched off. It should be noted that the switch module may also adopt other switch tubes such as a PNP triode, an MOS transistor, etc. to achieve the same function, which is not limited in the present invention.
Further, the induction module J1 can collect induction signals such as infrared rays, light rays and microwaves, and meanwhile, when the NPN transistor Q1 is turned off, the linear adjustment driving circuit 2 works, the LED module 4 is turned on, and when the NPN transistor Q1 is turned on, the linear adjustment driving circuit 2 does not work, and the LED module 4 is turned off. It should be noted that the type of the sensing module J1 may be set according to the actual use requirement, for example, an infrared sensor, a photosensitive sensor, a microwave sensor, etc. may be selected, and the present invention is not limited thereto.
Fourth, LED module 4
One end of the LED module 4 is connected to the rectifying circuit 1, the linear adjustment driving circuit 2 and the induction driving circuit 3, and the other end is connected to the linear adjustment driving circuit 2.
Further, the LED module 4 includes a main string and an auxiliary string, one end of the main string is connected to the output end of the rectifier circuit 1, the input end of the linear adjustment driving circuit 2 and the first input end of the induction driving circuit 3, the other end of the main string is connected to one end of the auxiliary string and the first output end of the linear adjustment driving circuit 2, and the other end of the auxiliary string is connected to the second output end of the linear adjustment driving circuit 2, and accordingly, the linear adjustment driving circuit 2 is specifically configured to control the on or off of the first output end and the second output end of the main string according to the collected input voltage of the main string. Specifically, the method comprises the following steps:
the main light string group comprises 12 light emitting diodes including a light emitting diode LED1, a light emitting diode LED2, a light emitting diode LED3, a light emitting diode LED4, a light emitting diode LED5, a light emitting diode LED6, a light emitting diode LED7, a light emitting diode LED8, a light emitting diode LED9, a light emitting diode LED10, a light emitting diode LED11 and a light emitting diode LED12, and the auxiliary light string group comprises 2 light emitting diodes including the light emitting diode LED13 and the light emitting diode LED 14.
The light emitting diode LED1, the light emitting diode LED2, the light emitting diode LED3, the light emitting diode LED4, the light emitting diode LED5, the light emitting diode LED6, the light emitting diode LED7, the light emitting diode LED8, the light emitting diode LED9, the light emitting diode LED10, the light emitting diode LED11, the light emitting diode LED12, the light emitting diode LED13 and the light emitting diode LED14 are sequentially connected in series, the anode of the light emitting diode LED1 is connected with the rectifying circuit 1, the linear adjustment driving circuit 2 and the induction driving circuit 3, the cathode of the light emitting diode LED12 is connected with the anodes of the linear adjustment driving circuit 2 and the light emitting diode LED13, and the cathode of the light emitting diode LED14 is connected with the linear adjustment driving circuit 2.
Further, the positive electrode of the light emitting diode LED1 is connected to the positive output terminal V + of the rectifying circuit 1, one end of the resistor R1 of the linear constant current driving circuit 2 and one end of the first voltage dividing resistor R3 of the induction driving circuit 3, the negative electrode of the light emitting diode LED12 is connected to the first linear adjustment output pin OUT1 of the linear adjustment driving circuit 2 and the positive electrode of the light emitting diode LED13, and the negative electrode of the light emitting diode LED14 is connected to the second linear adjustment output pin OUT2 connected to the linear adjustment driving circuit 2.
When the LED lamp works, the linear adjustment driving circuit 2 and the LED module 4 are combined for analysis, when the first linear adjustment output pin OUT1 is turned on, and the second linear adjustment output pin OUT2 is turned off, 12 light-emitting diodes of the main lamp string group emit light, and 2 light-emitting diodes of the auxiliary lamp string group do not emit light; when the first linear adjustment output pin OUT1 is closed and the second linear adjustment output pin OUT2 is opened, the 12 light-emitting diodes of the main lamp string group and the 2 light-emitting diodes of the auxiliary lamp string group are both luminous, and the main lamp string group and the auxiliary lamp string group are connected in series; when the first linear adjustment output pin OUT1 and the second linear adjustment output pin OUT2 are both turned on, 12 light emitting diodes of the main string group and 2 light emitting diodes of the auxiliary string group all emit light, and the string groups are connected in parallel.
As shown in fig. 3, the linear adjustment driving circuit 2 according to the second embodiment of the present invention includes two linear adjustment driving modules connected in parallel, and the LED module 4 includes a main lamp string group and an auxiliary lamp string group, where the main lamp string group includes 12 light emitting diodes, and the auxiliary lamp string group includes 2 light emitting diodes.
Unlike the first embodiment, the linear adjustment driving circuit 2 includes a voltage sampling module, a first linear adjustment driving module and a second linear adjustment driving module connected in parallel, wherein the first linear adjustment driving module includes a linear adjustment driving chip U3 and a first output current control module connected to the linear adjustment driving chip U3, and the second linear adjustment driving module includes a linear adjustment driving chip U4 and a second output current control module connected to the linear adjustment driving chip U4. Specifically, the method comprises the following steps:
unlike the first embodiment, the linear adjustment sampling pin VT of the linear adjustment driving chip U3 and the linear adjustment sampling pin VT of the linear adjustment driving chip U4 are connected to the sensing driving circuit 3 simultaneously, the linear adjustment driving chip U3 is connected to the ground through a resistor R11 and a resistor R12 which are sequentially connected in series, and is connected to the rectifying circuit 1, the sensing driving circuit 3 and the LED module 4, the linear adjustment current control pin REXT of the linear adjustment driving chip U3 is connected to the ground through a resistor R15, the linear adjustment current control pin REXT of the linear adjustment driving chip U4 is connected to the ground through a resistor R21, the first linear adjustment output pin OUT1 of the linear adjustment driving chip U3 and the first linear adjustment output pin OUT1 of the linear adjustment driving chip U4 are connected to the LED module 4 at the same time, and the second linear adjustment output pin OUT2 of the linear adjustment driving chip U3 and the second linear adjustment output pin OUT2 of the linear adjustment driving chip U4 are connected to the LED module 4 at the same time.
Further, different from the first embodiment, the linear adjustment sampling pin VT of the linear adjustment driving chip U3 and the linear adjustment sampling pin VT of the linear adjustment driving chip U4 are connected to the collector of the NPN transistor Q2 connected to the induction driving circuit 3, and are connected to the positive terminal V + of the output of the rectifying circuit 1, one terminal of the resistor R13 of the induction driving circuit 3 and the positive terminal of the LED15 of the LED module 4 through the resistor R11 and the resistor R12 connected in series in sequence, respectively, the first linear adjustment output pin OUT1 of the linear adjustment driving chip U3 and the first linear adjustment output pin OUT1 of the linear adjustment driving chip U4 are connected to the negative terminal of the LED26 of the LED module 4 and the positive terminal of the LED27, the second linear adjustment output pin OUT2 of the linear adjustment driving chip U3 and the second linear adjustment output pin OUT2 of the linear adjustment driving chip U4 are simultaneously connected to the cathode of the light emitting diode LED28 of the LED module 4.
In operation, unlike the first embodiment, the linear adjustment driving chip U3 and the linear adjustment driving chip U4 sample the input voltage through the resistor R11 and the resistor R12 at the same time, and when the input voltage is within the range of the input voltage of the linear adjustment driving chip U3 and the linear adjustment driving chip U4, the linear adjustment driving chip U3 and the linear adjustment driving chip U4 output substantially constant currents to adaptively supply power to the LED module 4.
Further, as when the input voltage is lower than the first threshold, the first linear adjustment output pin OUT1 of the linear adjustment driving chip U3 and the first linear adjustment output pin OUT1 of the linear adjustment driving chip U4 are simultaneously turned on, and the second linear adjustment output pin OUT2 of the linear adjustment driving chip U3 and the second linear adjustment output pin OUT2 of the linear adjustment driving chip U4 are simultaneously turned off; when the input voltage is higher than the third threshold value, the first linear adjustment output pin OUT1 of the linear adjustment driving chip U3 and the first linear adjustment output pin OUT1 of the linear adjustment driving chip U4 are simultaneously turned off, the second linear adjustment output pin OUT2 of the linear adjustment driving chip U3 and the second linear adjustment output pin OUT2 of the linear adjustment driving chip U4 are simultaneously turned on, and when the input voltage is equal to the second threshold value, the first linear adjustment output pin OUT1 of the linear adjustment driving chip U3, the first linear adjustment output pin OUT1 of the linear adjustment driving chip U4, the second linear adjustment output pin OUT2 of the linear adjustment driving chip U3 and the second linear adjustment output pin OUT2 of the linear adjustment driving chip U4 are simultaneously turned on, so that the linear adjustment rate can be effectively improved and no strobe effect can be realized, the driving method using the switching power supply is eliminated, the circuit structure is simpler, the cost is lower; meanwhile, the constant current supplies power to the LED module 4 in a matched mode, the LED module 4 can be prevented from being damaged due to large input voltage change, and the reliability is higher.
It should be added that the two linear adjustment driving modules connected in parallel are used for simultaneously supplying power to the LED module 4 in a matching manner, so that the LED module can bear a larger output current to drive more LEDs, thereby meeting different use environments and use requirements.
As shown in fig. 4, the linear adjustment driving circuit 2 according to the third embodiment of the present invention includes a single linear adjustment driving module, and the LED module 4 includes a main lamp string group and an auxiliary lamp string group, where the main lamp string group includes 11 light emitting diodes, and the auxiliary lamp string group includes 3 light emitting diodes.
One end of the LED module 4 is connected to the rectifying circuit 1, the linear adjustment driving circuit 2 and the induction driving circuit 3, and the other end is connected to the linear adjustment driving circuit 2.
Further, the LED module 4 includes a main string and an auxiliary string, one end of the main string is connected to the rectifier circuit 1, the linear adjustment driving circuit 2 and the induction driving circuit 3, the other end of the main string is connected to one end of the auxiliary string and the linear adjustment driving circuit 2, and the other end of the auxiliary string is connected to the linear adjustment driving circuit 2. Specifically, the method comprises the following steps:
unlike the first embodiment, the main string group includes 11 light emitting diodes in total, including the light emitting diode LED29, the light emitting diode LED30, the light emitting diode LED31, the light emitting diode LED32, the light emitting diode LED33, the light emitting diode LED34, the light emitting diode LED35, the light emitting diode LED36, the light emitting diode LED37, the light emitting diode LED38, and the light emitting diode LED39, and the sub-string group includes 3 light emitting diodes in total, including the light emitting diode LED40, the light emitting diode LED 41, and the light emitting diode LED 42.
Unlike the first embodiment, the light emitting diode LED29, the light emitting diode LED30, the light emitting diode LED31, the light emitting diode LED32, the light emitting diode LED33, the light emitting diode LED34, the light emitting diode LED35, the light emitting diode LED36, the light emitting diode LED37, the light emitting diode LED38, the light emitting diode LED39, the light emitting diode LED40, the light emitting diode LED 41, and the light emitting diode LED42 are connected in series in this order, the positive electrode of the light emitting diode LED29 is connected to the rectifier circuit 1, the linear adjustment drive circuit 2, and the induction drive circuit 3, the negative electrode of the light emitting diode LED39 is connected to the linear adjustment drive circuit 2 and the positive electrode of the light emitting diode LED40, and the negative electrode of the light emitting diode LED42 is connected to the linear adjustment drive circuit 2.
Further, unlike the first embodiment, the positive electrode of the light emitting diode LED29 is connected to the positive output terminal V + of the rectifying circuit 1, one end of the resistor R22 of the linear constant current driving circuit 2 and one end of the resistor R24 of the induction driving circuit 3, the negative electrode of the light emitting diode LED39 is connected to the first linear adjustment output pin OUT1 of the linear adjustment driving circuit 2 and the positive electrode of the light emitting diode LED40, and the negative electrode of the light emitting diode LED42 is connected to the second linear adjustment output pin OUT2 connected to the linear adjustment driving circuit 2.
When the linear adjustment driving circuit 2 and the LED module 4 are used, the analysis is performed by combining the linear adjustment driving circuit 2 and the LED module 4, which is different from the first embodiment, when the first linear adjustment output pin OUT1 is turned on and the second linear adjustment output pin OUT2 is turned off, 11 light emitting diodes of the main lamp string group emit light, 3 light emitting diodes of the auxiliary lamp string group do not emit light, when the first linear adjustment output pin OUT1 is turned off and the second linear adjustment output pin OUT2 is turned on, the 11 light emitting diodes of the main lamp string group and the 3 light emitting diodes of the auxiliary lamp string group emit light, and the 11 light emitting diodes of the main lamp string group and the 3 light emitting diodes of the auxiliary lamp string group are sequentially connected in series; when the first linear adjustment output pin OUT1 and the second linear adjustment output pin OUT2 are both turned on, 11 light emitting diodes of the main string group and 3 light emitting diodes of the auxiliary string group all emit light, and the string groups are in a parallel state.
As shown in fig. 5, the linear adjustment driving circuit 2 according to the fourth embodiment of the present invention includes two linear adjustment driving modules connected in parallel, and the LED module 4 includes a main lamp string group and an auxiliary lamp string group, where the main lamp string group includes 11 light emitting diodes, and the auxiliary lamp string group includes 3 light emitting diodes.
Unlike the third embodiment, the linear adjustment driving circuit 2 includes a voltage sampling module, a first linear adjustment driving module and a second linear adjustment driving module connected in parallel, wherein the first linear adjustment driving module includes a linear adjustment driving chip U8 and a first output current control module connected to the linear adjustment driving chip U8, and the second linear adjustment driving module includes a linear adjustment driving chip U9 and a second output current control module connected to the linear adjustment driving chip U9. Specifically, the method comprises the following steps:
unlike the third embodiment, the linear adjustment sampling pin VT of the linear adjustment driving chip U8 and the linear adjustment sampling pin VT of the linear adjustment driving chip U9 are connected to the sensing driving circuit 3 simultaneously, the linear adjustment driving chip U8 is connected to the ground through a resistor R32 and a resistor R33 which are sequentially connected in series, and is connected to the rectifying circuit 1, the sensing driving circuit 3 and the LED module 4, the linear adjustment current control pin REXT of the linear adjustment driving chip U8 is connected to the ground through a resistor R36, the linear adjustment current control pin REXT of the linear adjustment driving chip U9 is connected to the ground through a resistor R42, the first linear adjustment output pin OUT1 of the linear adjustment driving chip U8 and the first linear adjustment output pin OUT1 of the linear adjustment driving chip U9 are connected to the LED module 4 at the same time, and the second linear adjustment output pin OUT2 of the linear adjustment driving chip U8 and the second linear adjustment output pin OUT2 of the linear adjustment driving chip U9 are connected to the LED module 4 at the same time.
Further, different from the third embodiment, the linear adjustment sampling pin VT of the linear adjustment driving chip U8 and the linear adjustment sampling pin VT of the linear adjustment driving chip U9 are connected to the collector of the NPN transistor Q4 connected to the induction driving circuit 3, and are connected to the positive terminal V + of the output of the rectifying circuit 1, one terminal of the resistor R34 of the induction driving circuit 3 and the positive terminal of the LED43 of the LED module 4 through the resistor R32 and the resistor R33 connected in series in sequence, respectively, the first linear adjustment output pin OUT1 of the linear adjustment driving chip U8 and the first linear adjustment output pin OUT1 of the linear adjustment driving chip U9 are connected to the negative terminal of the LED53 of the LED module 4 and the positive terminal of the LED54, the second linear adjustment output pin OUT2 of the linear adjustment driving chip U8 and the second linear adjustment output pin OUT2 of the linear adjustment driving chip U9 are simultaneously connected to the cathode of the light emitting diode LED56 of the LED module 4.
In operation, unlike the third embodiment, the linear adjustment driving chip U8 and the linear adjustment driving chip U9 sample the input voltage through the resistor R32 and the resistor R33 at the same time.
Further, when the input voltage is within the input voltage range of the linear adjustment driving chip U8 and the linear adjustment driving chip U9, the linear adjustment driving chip U8 and the linear adjustment driving chip U9 output substantially constant currents to perform the step-adapted power supply to the LED module 4, for example, when the input voltage is lower than the first threshold, the first linear adjustment output pin OUT1 of the linear adjustment driving chip U8 and the first linear adjustment output pin OUT1 of the linear adjustment driving chip U9 are simultaneously turned on, and the second linear adjustment output pin OUT 86 2 of the linear adjustment driving chip U8 and the second linear adjustment output pin OUT2 of the linear adjustment driving chip U9 are simultaneously turned off; when the input voltage is higher than the third threshold, the first linear adjustment output pin OUT1 of the linear adjustment driving chip U8 and the first linear adjustment output pin OUT1 of the linear adjustment driving chip U9 are simultaneously turned off, and the second linear adjustment output pin OUT2 of the linear adjustment driving chip U8 and the second linear adjustment output pin OUT2 of the linear adjustment driving chip U9 are simultaneously turned on; when the input voltage is equal to the second threshold value, the first linear adjustment output pin OUT1 of the linear adjustment driving chip U8, the first linear adjustment output pin OUT1 of the linear adjustment driving chip U9, the second linear adjustment output pin OUT2 of the linear adjustment driving chip U8 and the second linear adjustment output pin OUT2 of the linear adjustment driving chip U9 are simultaneously opened, so that the linear adjustment rate can be effectively improved, the non-stroboscopic effect can be realized, the driving mode of utilizing a switching power supply in the past is avoided, the circuit structure is simpler, and the cost is lower; meanwhile, the constant current supplies power to the LED module 4 in a matched mode, the LED module 4 can be prevented from being damaged due to large input voltage change, and the reliability is higher.
It should be added that the LED module 4 is adapted and powered by the two linear adjustment driving chips U8 and U9 connected in parallel, so that the LED module can bear a larger output current to drive more LEDs, thereby adapting to different use environments and use requirements.
As shown in fig. 6, the LED lamp comprises an LED lamp body and a linear stroboflash-free sensing LED circuit 5, wherein the linear stroboflash-free sensing LED circuit 5 is arranged inside the LED lamp body.
From the above, the present invention has the following beneficial effects:
according to the utility model, the output power can be kept constant through the linear adjustment driving circuit so as to supply power to the LED module in a matching way, so that the linear adjustment rate is improved, the LED module cannot be burnt out due to overlarge power, and the reliability is higher;
according to the LED lamp, the frequency of the LED module can be removed through the linear adjustment driving circuit, so that a stroboscopic-free light effect is achieved;
compared with the driving mode of the traditional photoelectric switching power supply circuit, the LED driving circuit has the advantages that the circuit structure is simpler, and meanwhile, the cost is lower;
the utility model realizes the function of the inductive switch of the LED lamp through the inductive driving circuit, and has higher intelligent degree.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model.
Claims (10)
1. A linear no stroboscopic response LED circuit which characterized in that: the LED power supply comprises a rectifying circuit, and a linear adjustment driving circuit, an induction driving circuit and an LED module which are respectively connected with the rectifying circuit, wherein the rectifying circuit is used for converting alternating current commercial power into direct current to respectively supply power to the linear adjustment driving circuit, the induction driving circuit and the LED module;
the linear adjustment driving circuit is further connected with the induction driving circuit and the LED module respectively, the linear adjustment driving circuit is used for keeping the current flowing through the LED module constant, and the induction driving circuit is used for collecting induction signals to control the on-off of the linear adjustment driving circuit.
2. The linear strobe-free induction LED circuit of claim 1, wherein: the LED module comprises a main lamp string group and an auxiliary lamp string group, one end of the main lamp string group is respectively connected with the output end of the rectifying circuit, the input end of the linear adjustment driving circuit and the first input end of the induction driving circuit, the other end of the main lamp string group is respectively connected with one end of the auxiliary lamp string group and the first output end of the linear adjustment driving circuit, and the other end of the auxiliary lamp string group is connected with the second output end of the linear adjustment driving circuit;
the linear adjustment driving circuit is specifically used for controlling the on or off of the first output end and the second output end of the linear adjustment driving circuit according to the acquired input voltage of the linear adjustment driving circuit.
3. The linear strobe-free induction LED circuit of claim 2, wherein: the main lamp string group and the auxiliary lamp string group respectively comprise a plurality of light-emitting diodes which are sequentially connected in series, and the ratio of the number of the light-emitting diodes of the main lamp string group to the number of the light-emitting diodes of the auxiliary lamp string group is 11: 3 or 12: 2.
4. the linear strobe-free induction LED circuit of claim 2 or 3, wherein: the linear adjustment driving circuit comprises a voltage sampling module and at least one linear adjustment driving module, wherein a sampling end of the linear adjustment driving module is connected with a second input end of the induction driving circuit and is respectively connected with an output end of the rectifying circuit, a first input end of the induction driving circuit and one end of the main lamp string group through the voltage sampling module, a first output end of the linear adjustment driving module is connected with the other end of the main lamp string group, and a second output end of the linear adjustment driving module is connected with the other end of the auxiliary lamp string group;
the linear adjustment driving module is used for controlling a first output end and a second output end of the linear adjustment driving module to be simultaneously started when the input voltage acquired by the voltage sampling module is equal to a preset second threshold value, controlling the first output end of the linear adjustment driving module to be started and controlling the second output end of the linear adjustment driving module to be turned off when the input voltage is smaller than the preset first threshold value, and controlling the first output end of the linear adjustment driving module to be turned off and controlling the second output end of the linear adjustment driving module to be turned on when the input voltage is larger than a preset third threshold value; wherein the first threshold is less than the second threshold, which is less than the third threshold; the first output end of the linear adjustment driving module is the first output end of the linear adjustment driving circuit, and the second output end of the linear adjustment driving module is the second output end of the linear adjustment driving circuit.
5. The linear strobe-free induction LED circuit of claim 4, wherein: the linear adjustment driving module comprises a linear adjustment driving chip and an output current control module, wherein the linear adjustment driving chip is provided with a linear adjustment sampling pin, a linear adjustment grounding pin, a linear adjustment current control pin, a first linear adjustment output pin and a second linear adjustment output pin;
the linear adjustment sampling pin is respectively connected with the output end of the rectifying circuit, the first input end of the induction driving circuit and one end of the main lamp string group through the voltage sampling module; the voltage sampling module comprises a power supply resistor group and a power supply capacitor, one end of the power supply resistor group is connected with the output end of the rectifying circuit, the first input end of the induction driving circuit and one end of the main lamp string group, and the other end of the power supply resistor group is connected with the linear adjustment sampling pin and is grounded through the power supply capacitor;
the linear adjustment grounding pin is grounded;
the linear adjustment current control pin is grounded through the output current control module, and the output current control module comprises a control resistor;
the first linear adjustment output pin is connected with the other end of the main lamp string group;
and the second linear adjustment output pin is connected with the other end of the auxiliary lamp string group.
6. The linear strobe-free induction LED circuit of claim 1, wherein: the induction driving circuit comprises an induction power supply circuit and an induction switch circuit which are connected with each other, the induction power supply circuit is further connected with the rectifying circuit, the linear adjustment driving circuit and the LED module respectively, and the induction switch circuit is further connected with the linear adjustment driving circuit and the ground respectively.
7. The linear strobe-free induction LED circuit of claim 6, wherein: the induction power supply circuit comprises a voltage conversion chip, and an input voltage division module and an output adjustment filtering module which are respectively connected with the voltage conversion chip, wherein the voltage conversion chip is provided with an input voltage pin, an output voltage pin and an output voltage adjustment pin;
the input voltage pin is respectively connected with the output end of the rectifying circuit, the input end of the linear adjustment driving circuit and one end of the LED module through the input voltage dividing module; the input voltage division module comprises a first voltage division resistor and a second voltage division resistor, one end of the first voltage division resistor is respectively connected with the output end of the rectifying circuit, the input end of the linear adjustment driving circuit and one end of the LED module, and the other end of the first voltage division resistor is connected with the input voltage pin and is grounded through the second voltage division resistor;
the output voltage pin is respectively connected with the inductive switch circuit and the ground through the output adjusting and filtering module; the output adjusting filter module comprises a first filter resistor, a second filter resistor and an electrolytic capacitor, one end of the first filter resistor is connected with the output voltage pin, one end of the electrolytic capacitor and the inductive switch circuit, the other end of the first filter resistor is grounded through the second filter resistor, and the other end of the electrolytic capacitor is grounded;
the output voltage adjusting pin is respectively connected with the inductive switch circuit and the ground through the output adjusting filtering module; one end of the second filter resistor is connected with the output voltage adjusting pin and the other end of the first filter resistor respectively, and the other end of the second filter resistor is grounded.
8. The linear strobe-free induction LED circuit of claim 6 or 7, wherein: the induction switch circuit comprises an induction module, a current-limiting voltage-stabilizing module and a switch module which are respectively connected with the induction module, wherein the induction module is provided with an induction power supply pin, an induction output pin and an induction grounding pin;
the induction power supply pin is respectively connected with the induction power supply circuit and the ground through the current-limiting voltage-stabilizing module; the current-limiting voltage-stabilizing module comprises a voltage-stabilizing resistor and a voltage-stabilizing diode, one end of the voltage-stabilizing resistor is connected with the induction power supply circuit, the other end of the voltage-stabilizing resistor is connected with the induction power supply pin, the cathode of the voltage-stabilizing diode is connected with the induction power supply pin, and the anode of the voltage-stabilizing diode is grounded;
the induction output pin is respectively connected with the linear adjustment driving circuit and the ground through the switch module; the switch module comprises a control resistor and an NPN triode, one end of the control resistor is connected with the induction output pin, the other end of the control resistor is grounded, the base electrode of the NPN triode is connected with the induction output pin, the collector electrode of the NPN triode is connected with the linear adjustment driving circuit, and the emitter electrode of the NPN triode is grounded;
the inductive ground pin is grounded.
9. The linear strobe-free induction LED circuit of claim 1, wherein: rectifier circuit includes live wire terminal, zero line terminal, voltage stabilizing module, rectifier module and filtering module, rectifier module's input positive end passes through voltage stabilizing module with live wire terminal connects, rectifier module's the reverse end of input passes through voltage stabilizing module with zero line terminal connects, rectifier module's output positive end passes through filtering module respectively with linear adjustment drive circuit's input, induction drive circuit's first input and the one end of LED module are connected, rectifier module's output negative terminal ground connection.
10. An LED lamp, characterized in that: the LED lamp comprises an LED lamp body and the linear stroboflash-free induction LED circuit as claimed in any one of claims 1 to 9, wherein the linear stroboflash-free induction LED circuit is arranged inside the LED lamp body.
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| CN202121041480.8U CN215871921U (en) | 2021-05-14 | 2021-05-14 | Linear stroboflash-free induction LED circuit and LED lamp |
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| CN202121041480.8U CN215871921U (en) | 2021-05-14 | 2021-05-14 | Linear stroboflash-free induction LED circuit and LED lamp |
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| CN202121041480.8U Active CN215871921U (en) | 2021-05-14 | 2021-05-14 | Linear stroboflash-free induction LED circuit and LED lamp |
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