CN214380650U - Low-power consumption standby circuit, intelligent product, power supply controller and ceiling lamp - Google Patents

Abstract

The utility model relates to a low-power consumption standby circuit, intelligent product, electrical source controller and ceiling lamp. Wherein, this circuit includes: a main control module; the silicon controlled rectifier control module is electrically connected with the main control module; the silicon controlled rectifier control module further comprises: the on-off circuit is electrically connected with the main control module through an STB port; the thyristor is electrically connected with the on-off circuit and is connected with a power-taking live wire of the power grid system in series through an SW1 port; and the auxiliary power supply unit is used for supplying power to the main control module, is electrically connected with the power grid system and is arranged at the front end of the SW1 port. The main control module outputs an STB signal to control the on-off of the silicon controlled rectifier control module, so that the on-off of the power-taking live wire is controlled, the power-off of an input power supply and the power-off of the wireless module are realized in a standby state, and the problem of overlarge power consumption of the standby power supply in the prior art is effectively solved.

Description

Low-power consumption standby circuit, intelligent product, power supply controller and ceiling lamp

Technical Field

The utility model belongs to the technical field of the power, especially, relate to a low-power consumption standby circuit, intelligent product, electrical source controller and ceiling lamp.

Background

With the appearance and development of intelligent products, the problem of high standby power consumption of the intelligent products is more and more obvious, and in the prior art, the intelligent products have higher power in a standby state for various reasons.

At present, no effective solution is provided for the problem of high power consumption in the related technology.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a low-power consumption standby circuit, intelligent product, electrical source controller and ceiling lamp.

In a first aspect, an embodiment of the present application provides a low power consumption standby circuit, which includes:

a main control module;

the silicon controlled rectifier control module is electrically connected with the main control module; the thyristor control module further comprises:

the on-off circuit is electrically connected with the main control module through an STB port;

the silicon controlled rectifier is electrically connected with the on-off circuit and is connected with a power-taking live wire of the power grid system in series through an SW1 port;

and the auxiliary power supply unit is used for supplying power to the main control module, is electrically connected with a power grid system and is arranged at the front end of the SW1 port.

The main control module controls the conduction condition of the on-off circuit according to the high-low level change of the STB signal, and then controls the conduction condition of the power-taking live wire through the silicon controlled rectifier.

In some embodiments, the power supply further comprises a main power supply unit electrically connected to the load.

In some of these embodiments, the auxiliary power unit further comprises: the power supply comprises a first rectifying and filtering circuit, a voltage division circuit, an RCD absorption circuit, a flyback transformer and a secondary Schottky rectifying and filtering circuit which are electrically connected, wherein the secondary Schottky rectifying and filtering circuit is electrically connected with the main control module.

In some embodiments, the main control module further includes a second rectifying and filtering circuit, a zero-crossing detection circuit, and a wireless module, wherein the second rectifying and filtering circuit is connected in parallel with the zero-crossing detection circuit, the wireless module includes an MCU and a wireless communication module electrically connected to the MCU, and the wireless communication module is electrically connected to the on-off circuit through an STB port.

In some embodiments, the wireless communication module is configured as one or a combination of WiFi and bluetooth.

In some embodiments, the on-off circuit further includes a noise reduction circuit and an optical coupler, the noise reduction circuit is electrically connected to the STB port of the wireless module, and output pins of the optical coupler are respectively connected to A, G pins of the thyristor.

In a second aspect, an embodiment of the present application provides an intelligent product, including the low power consumption standby circuit of the first aspect.

In some embodiments, the low power consumption standby circuit may further be externally connected to a WiFi intelligent gateway, an APP or a bluetooth remote controller, and both are electrically connected to the main control module.

In a third aspect, an embodiment of the present application provides a power supply controller, which includes the low power consumption standby circuit of the first aspect.

In a fourth aspect, an embodiment of the present application provides a ceiling lamp, which includes the low power consumption standby circuit of the first aspect and a lighting component.

To sum up, the embodiment of the application provides a low-power consumption standby circuit, intelligent product, power supply controller and ceiling lamp, and the switching-on and switching-off of silicon controlled control module is controlled through main control module output STB signal, and then the switching-on and switching-off of the live wire of getting the electricity is controlled, has realized under standby state, and input power outage and wireless module are not outage, solve the too big problem of standby power consumption among the prior art effectively, realize the purpose of energy-conserving after the standby.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of a low power standby circuit;

FIG. 2 is a schematic diagram of a main power supply unit;

FIG. 3 is a schematic diagram of an auxiliary power unit;

FIG. 4 is a schematic diagram of a master control module;

FIG. 5 is a schematic view of the connection between the thyristor and the on-off circuit;

FIG. 6 shows the operation of thyristor Q7;

FIG. 7 is an internal structural view of the thyristor;

fig. 8 is a schematic block diagram of a ceiling lamp system according to a preferred embodiment of the present invention;

FIG. 9 is a flow chart of a low power control method;

FIG. 10 is a flow chart of the power supply steps in the embodiment of the present application

FIG. 11 is a flowchart of the circuit control steps in an embodiment of the present application;

wherein the reference numerals are:

a master control module 902; a thyristor control module 903;

an auxiliary power supply unit 9012; a main power supply unit 9011;

an on-off circuit 9031; a thyristor Q7;

a first rectifying and filtering circuit 90121; a voltage divider circuit 90122;

RCD absorption circuit 90123; a flyback transformer 90124;

a secondary schottky rectifying filter circuit 90125; (ii) a A second rectifying and filtering circuit 9021;

a zero-crossing detection circuit 9022; a wireless module U1;

an on-off circuit 9031; a noise reduction circuit 90311; optical coupler PC 2.

Auxiliary power supply AC/DC circuit 801;

a WIFI module 802; a zero-cross detection circuit 803; a thyristor circuit 804;

a rectifier bridge 805; a main power PFC circuit 806; a constant voltage output circuit 807;

LED drive 8081; LED lighting circuit 8082.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments provided in the present application without any inventive step are within the scope of protection of the present application.

It is obvious that the drawings in the following description are only examples or embodiments of the present application, and that it is also possible for a person skilled in the art to apply the present application to other similar contexts on the basis of these drawings without inventive effort. Moreover, it should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of ordinary skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments without conflict.

The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention. Additionally, the same or similar numbered elements/components used in the drawings and the embodiments are used to represent the same or similar parts.

Unless defined otherwise, technical or scientific terms referred to herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which this application belongs. Reference to "a," "an," "the," and similar words throughout this application are not to be construed as limiting in number, and may refer to the singular or the plural. The present application is directed to the use of the terms "including," "comprising," "having," and any variations thereof, which are intended to cover non-exclusive inclusions; for example, a process, method, system, article, or apparatus that comprises a list of steps or circuits (elements) is not limited to those listed but may include other steps or elements not listed or inherent to such process, method, article, or apparatus. Reference to "connected," "coupled," and the like in this application is not intended to be limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The term "plurality" as referred to herein means two or more; reference to "multiple sets" herein includes "two sets" and "more than two sets". "and/or" describes an association relationship of associated objects, meaning that three relationships may exist, for example, "A and/or B" may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. Reference herein to the terms "first," "second," "third," and the like, are merely to distinguish similar objects and do not denote a particular ordering for the objects.

As used herein, the terms "substantially", "about" and the like are used to modify any slight variation in quantity or error that does not alter the nature of the variation. Generally, the range of slight variations or errors modified by such terms may be 20% in some embodiments, 10% in some embodiments, 5% in some embodiments, or other values. It should be understood by those skilled in the art that the aforementioned values can be adjusted according to actual needs, and are not limited thereto.

Certain words used to describe the present application are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the present application.

In the prior art, the standby power of many intelligent products is higher, mainly because the consumption of power and the consumption of host system piece of power, under the standby state, host system piece can't cut off the power, and host system piece need get the electricity from the power, because do not realize completely under the standby state that control input end cuts off the power, leads to the power to be in operating condition all the time, and the consumption is higher.

Based on this, the utility model provides a low-power consumption standby circuit, intelligent product, electrical source controller and ceiling lamp, this low-power consumption standby circuit can realize under standby state, and host system does not cut off the power supply, and input power is in the outage state to reach the mesh that reduces the consumption.

The embodiment of the present application provides a low power consumption standby circuit, and fig. 1 is a schematic diagram of a principle of the low power consumption standby circuit, as shown in fig. 1, the circuit specifically includes:

a main control module 902;

a thyristor control module 903 electrically connected to the main control module 902; the scr control module 903 further comprises:

an on-off circuit 9031 electrically connected to the main control module 902 through an STB port;

a thyristor 9032 electrically connected to the on-off circuit 9031, and connected in series to the power line of the power grid system through a SW1 port;

and the auxiliary power supply unit 9012 is used for supplying power to the main control module 902 and electrically connected to the power grid system, and the power taking end of the auxiliary power supply unit 9012 is arranged at the front end of the SW1 port.

The tip is a side close to the power supply source.

The main control module 902 receives a collection signal and then outputs an STB signal to the on-off circuit, and the on-off circuit receives the collection signal and controls the on-off of the on-off circuit according to the STB signal, so that the on-off of the power-taking live wire is controlled through the silicon controlled rectifier.

In this embodiment, the auxiliary power supply unit 9012 provides voltage for the main control module 902, the input end of the auxiliary power supply unit 9012 is connected with the power-taking live wire, the main control module 902 receives the acquisition signal and then outputs an STB signal to the thyristor control module 903, and the thyristor control module 903 controls the power-taking live wire and the load to be switched on and off according to the STB signal at the input end. Therefore, the power consumption reaches 1w or below in the standby state.

It should be noted that, when the thyristor control module 903 controls the power-taking live wire to be disconnected, the auxiliary power supply unit 9012 is not affected by the power supply function of the main control module 902, so as to achieve a state that the main control module can be waken up at any time in a standby state.

Fig. 5 is a schematic diagram of a thyristor control module, and as shown in fig. 5, in this embodiment, a wireless module U1 is used to support the realization of standby of an intelligent product, and a control electrode G of a thyristor Q7 is controlled to cut off power supply to an input power-taking live wire and to disconnect a rear-end output load, in response to H/L change of an STB signal, so as to achieve optimal standby power consumption. The method specifically comprises the following steps: when an STB signal is at an H high level, a pin 12 of the optical coupler PC2 is conducted in a forward direction, a pin 246 of the optical coupler PC is opened, an electric signal is transmitted to a control electrode G of the controlled silicon Q7, the conduction of the controlled silicon can be triggered only after a forward voltage is added to G, K, the minimum value of the trigger voltage is called a gate trigger voltage VGT, when a forward voltage is applied to GK of the controlled silicon Q7 and is larger than the gate trigger voltage VGT, a point G is triggered, AK is conducted, and SW1 is conducted with SW 2.

On the contrary, when the STB is at the L low level, the 12 pins of the optocoupler PC2 cannot be conducted in the forward direction, the electric signal transmission cannot be passed, the controllable silicon Q7 is not triggered, the AK is in the off state, and the live wires SW1 and SW2 are cut off.

Fig. 6 is a working principle of a thyristor Q7, fig. 7 is an internal structure diagram of the thyristor, and on-off state of a power-taking live wire is controlled by using the thyristor based on the working principle of the thyristor and by using a contactless switch.

During the working process of the controllable silicon Q7, the anode A and the cathode K of the controllable silicon Q7 are connected with a power supply and a load to form a main circuit of the controllable silicon Q7, and the control electrode G and the cathode K of the controllable silicon Q7 are connected with a circuit for controlling the controllable silicon Q7 to form a control circuit of the controllable silicon Q7.

As shown in fig. 6-7, the thyristor Q7 is a four-layer three-terminal device having three PN junctions, and its middle NP is divided into two parts to form a composite tube of a PNP transistor Q1 and an NPN transistor Q2.

Internal analysis working process of thyristor Q7:

when the thyristor Q7 is subjected to positive anode voltage, the PN junction subjected to reverse voltage must be unblocked in order to turn on the thyristor Q7. The collector current of each transistor is simultaneously the base current of the other transistor. Thus, two transistor circuits, which are combined with each other, have sufficient gate current I_gWhen the current flows in, strong positive feedback is formed, so that the two transistors are in saturated conduction, and the transistors are in saturated conduction.

The collector currents of the PNP tube and the NPN tube are set to be I correspondingly_c1And I_c2(ii) a Emitter current is correspondingly I_aAnd I_k(ii) a Current amplification factor is a₁＝I_c1/I_aAnd a₂＝I_c2/I_k。

Let the reverse leakage current flowing through the middle PN junction be I_c0The anode current of thyristor Q7 is equal to the sum of the collector current and the leakage current of the two transistors:

I_a＝I_c1+I_c2+I_c0or I_a＝a₁I_a+a₂I_k+I_c0

If the gate current is I_gThen the cathode current of the thyristor Q7 is

I_k＝I_a+I_k

So that the anode current of the thyristor Q7 is:

I＝(I_c0+I_ga₂)/(1-(a₁+a₂))(1-1)

the current amplification coefficients a of the silicon PNP tube and the silicon NPN tube₁And a₂Which changes sharply with changes in its emitter current.

When the thyristor Q7 is under positive anode voltage, the gate is turned onIn the case of extreme absence of voltage, formula (1-1) wherein_g＝0,a₁+a₂Very small so that the anode current I of the thyristor Q7_a≈I_c0The thyristor is in a forward blocking state. When the thyristor Q7 is under positive anode voltage, current I flows from the control electrode G_gDue to a sufficiently large I_gFlows through the emitter junction of the NPN tube, thereby improving the starting point flow amplification factor a₂Generating a sufficiently large pole electrode current I_c2Flows through the emitter junction of the PNP tube and improves the current amplification factor a of the PNP tube₁Generating a larger pole electrode current I_c1Flows through the emitter junction of the NPN transistor. This strong positive feedback process proceeds rapidly. When a is₁And a₂As the emitter current increases (a)₁+a₂) When 1 is applied, the denominator 1- (a) in the formula (1-1)₁+a₂) Is approximately equal to 0, so that the anode current I of the thyristor Q7 is improved_a. At this point, the current through thyristor Q7 is determined entirely by the main loop voltage and the loop resistance. Thyristor Q7 is already in the forward conducting state.

In the formula (1-1), after the thyristor Q7 is turned on, 1- (a)₁+a₂) 0, even at the gate current I_gWhen it is 0, the thyristor Q7 can still retain original anode current I_aAnd continues to conduct. After the thyristor Q7 is turned on, the gate is deactivated.

After the thyristor Q7 is turned on, if the power voltage is continuously reduced or the loop resistance is increased, the anode current I is enabled_aDecrease below the holding current IH due to a₁And a₂Rapidly decrease when 1- (a)₁+a₂) When the value is approximately equal to 0, the thyristor Q7 restores the blocking state.

In some embodiments, the power supply system further includes a main power supply unit 9011 electrically connected to the power grid system, for supplying power to the load.

In practical applications, fig. 2 is a schematic diagram of a main power supply unit, as shown in fig. 2, the main power supply unit 9011 is electrically connected to a live line and a zero line of a power grid system, and includes an AC/DC conversion circuit and a transformer, the main power supply unit 9011 is provided with three ports, which are SW1, SW2 and SW3, respectively, SW1 and SW2 are connected to an A, K port of a thyristor Q7 of the thyristor control module 903, the thyristor control module 903 is connected in series to the main power supply unit 9011 to control a power supply situation of the thyristor control module 903 after the SW1 end, a front end of the SW1 port is further connected to the auxiliary power supply unit 9012, so that when the thyristor control module 903 controls the SW1 and SW2 to be disconnected, the auxiliary power supply unit 9012 can normally take power to supply power to the main control module, and SW3 is used to provide voltage to a working load.

When the low-power-consumption standby circuit works, electricity is taken at the front end of the SW1 through the auxiliary power supply unit, alternating current is converted into 3.3V direct current through AC to DC, power is supplied to the wireless module U1, the wireless module U1 outputs STB signals through the resistor R15 and the resistor R16, the switch is disconnected to take the live wire electricity through the control electrode G of the PC2 control silicon controlled rectifier Q7, and meanwhile, the main power supply unit is disconnected to realize the load disconnection of the rear end, so that the optimal standby power consumption is achieved.

In some embodiments, the auxiliary power supply unit 9012 further includes: the first rectifying and filtering circuit 90121, the voltage dividing circuit 90122, the RCD absorption circuit 90123, the flyback transformer 90124, and the secondary schottky rectifying and filtering circuit 90125 are electrically connected, and the secondary schottky rectifying and filtering circuit 90125 is electrically connected to the main control module 902.

Fig. 3 is a schematic diagram of an auxiliary power supply unit, as shown in fig. 3, ac power accessed by a power grid system is input through a live wire/zero wire, the live wire is connected to SW1, the SW enters the whole low power consumption standby circuit, the ac power is rectified into dc power through a diode D17, and is filtered through a capacitor EC7, a capacitor EC7 is connected in parallel to resistors R47 and R46 to provide a starting voltage for a power chip U10, a capacitor C43 and a capacitor C40 are set as a filter capacitor of a VDD pin of the power chip U10, an RCD absorption circuit is formed by the capacitor, the resistor and the diode, the RCD absorption circuit is connected in parallel to a flyback transformer T2A segment, the power chip U10 is further connected to an auxiliary circuit, the auxiliary circuit is formed by a resistor R50 and a diode D20 connected in series in this embodiment, a FB pin of the power chip U10 divides voltage to obtain a back end voltage, the FB pin is connected to a resistor R69 and a resistor R71, the resistor R69 and the resistor R71 are connected in parallel to a flyback transformer T2B segment, the other end T2C section of the flyback transformer is connected with a rectifying filter circuit and an absorption circuit and is connected with a dummy load, and finally 3.3V voltage is output to supply power for the wireless module.

In some embodiments, the main control module 902 further includes a second rectifying and filtering circuit 9021, a zero-crossing detection circuit 9022, and a wireless module U1, wherein the second rectifying and filtering circuit 9021 is connected in parallel with the zero-crossing detection circuit 9022, the wireless module U1 includes an MCU and a wireless communication module electrically connected to the MCU, and the wireless communication module is electrically connected to the on-off circuit 9031 through an STB port.

Fig. 4 is a schematic diagram of a main control module, as shown in fig. 4, the main control module 902 includes a second rectifying and filtering circuit 9021, a zero-cross detection circuit 9022, and a wireless module U1, the second rectifying and filtering circuit 9021 and the zero-cross detection circuit 9022 are connected in parallel, the wireless module U1 is connected in series with a resistor R15 and a resistor R16 at an IO22 pin in a GPIO manner, so as to pull up an STB signal, an STB port is connected to the thyristor control module 903, and the conduction and blocking of a control electrode G of the thyristor Q7 are controlled according to the change of the high and low levels of the STB signal, so as to realize the fast connection or disconnection of the live wires SW1 and SW2 of the contactless switch.

In practical applications, the wireless module U1 may be configured as one or a combination of WIFI and bluetooth. The wireless module U1 can communicate with the UART, collect different signals to support different control states through data input and output, and output STB signals to the scr control module 903.

In this application, through terminating the power consumption with bluetooth or wiFi before SW1, the input power of SW1 rear end can control the outage through bluetooth or WIFI under the standby state, does not influence bluetooth or wiFi's power supply simultaneously, and then reaches the purpose of reduce power consumption.

In some embodiments, the on/off circuit 9031 further includes a noise reduction circuit 90311 and an optical coupler PC2, the noise reduction circuit 90311 is electrically connected to the STB port of the wireless module U1, and output pins of the optical coupler PC2 are respectively connected to A, G pins of the thyristor Q7.

In some embodiments, the low power standby circuit may further be externally connected to a WiFi smart gateway, APP or a bluetooth remote controller, and all electrically connected to the main control module 902.

In the application of reality, low-power consumption standby circuit passes through external WIFI intelligent gateway, and APP and bluetooth remote control machine can realize that turn-off after the standby gets the electric live wire, control intelligent product standby power consumption, accomplish to turn-off and the on-line condition can awaken up intelligent product equipment at any time.

As shown in the following table, it can be seen that the low power consumption standby circuit in this embodiment is in the standby power condition of the whole device in the actual test.

Fig. 8 is the functional block diagram of the ceiling lamp system of the preferred embodiment of the present invention, as shown in fig. 8, the system includes an auxiliary power supply AC/DC circuit 801, a WIFI module 802, a zero-crossing detection circuit 803, a thyristor circuit 804, a rectifier bridge 805, a main power supply PFC circuit 806, a constant voltage output circuit 807 and a load, the load in the preferred embodiment is an LED circuit, and the LED circuit includes an LED drive 8081 and an LED lighting circuit 8082.

The main power supply PFC circuit 806 and the constant voltage output circuit 807 are connected to the live line and the neutral line, and mainly provide electric energy for the load. The constant voltage output circuit 807 can output 57V, 1.6A. The auxiliary power supply AC/DC circuit 801 may convert 220V AC power into 3.3V, 500mA DC power, and output the DC power to the WIFI module 802.

The alternating current is accessed to the system through the zero line and the live wire, the 3.3V stable direct current is output to the WIFI module 802 through the auxiliary power supply AC/DC circuit 801, the flashing is realized through the zero-crossing detection circuit 803, the WIFI module 802 is indicated with the work, the STB signal is output, the conduction and the blocking of the silicon controlled circuit 804 are controlled according to the high and low level of the STB signal, the connection of the live wire is cut off, the power failure of the rear-end load is realized, and the optimized standby power consumption is realized. Meanwhile, the WIFI module 802 is powered by the auxiliary power supply AC/DC circuit 801, so that normal working requirements can be met.

An embodiment of the present application further provides a low power consumption control method, and fig. 9 is a flowchart of the low power consumption control method, where the method is used to implement the foregoing embodiment and the preferred embodiment, and the description that has been already made is not repeated, and as shown in fig. 9, the method specifically includes the following steps:

a power supply step S1, wherein the power supply step is used for generating and outputting stable power supply voltage after alternating current accessed by a power grid passes through a first rectification filter circuit through a power-taking live wire;

a signal output step S2, configured to receive the power supply voltage through a main control module, and output an STB signal according to an acquisition signal;

and a circuit control step S3, wherein the circuit control step is used for receiving the power-taking live wire and controlling the on-off of the load according to the STB signal through a silicon controlled control module, so as to realize low-power consumption standby.

The on-off of the power-taking live wire and the load is controlled to be on-off of the power-taking live wire and the main power supply unit.

In some embodiments, the main control module is specifically configured as a wireless module U1, the signal output step S2 further includes a signal determination step S201,

the wireless module U1 is connected with a communication circuit, and distinguishes different control states according to the characteristics of corresponding collected signals and outputs corresponding STB signals.

Through the steps, the wireless module U1 supplies power to get power from the front end of the SW1 which gets the power line, so that the wireless module U1 cannot supply power to the SW3 (shown in figure 2) because of the high level of the STB signal, and the wireless module U1 does not supply power of 3.3V, so that the standby online awakening condition can not be realized.

The low-power-consumption standby circuit has the advantages that power is taken at the front end of SW1, alternating current is converted into 3.3V through an alternating circuit to supply power to a wireless module U1, an IO22 pin of the wireless module U1 outputs STB signals through resistors R15 and R16, and the on-off of an input live wire at the rear end of SW1 is controlled by controlling a control electrode G of a silicon controlled transistor Q7 through an optical coupler PC 2. Under the standby state, the disconnection of the input live wire and the normal power supply of the wireless module are realized, and the low-power-consumption work under the standby state is achieved.

Fig. 10 is a flowchart of a power supplying step in the embodiment of the present application, as shown in fig. 10, in some embodiments, the power supplying step S1 further includes:

a first rectifying and filtering step S101 of inputting the ac power accessed through the power line to a first rectifying and filtering circuit to output a start voltage to the power chip U10;

a voltage division step S102 of dividing the voltage via the FB port of the power chip U10;

a voltage transformation step S103, outputting the actually required power supply voltage through a flyback transformer;

in the second rectifying and filtering step S104, the supply voltage is output as a stable supply voltage through the secondary schottky rectifying and filtering circuit.

Fig. 11 is a flowchart of a circuit control step in the embodiment of the present application, as shown in fig. 11, in some embodiments, the circuit control step S3 specifically includes:

a signal pull-up step S301, wherein the wireless module U1 connects the resistor R15 and the resistor R16 through a GPIO port to realize pull-up/pull-down of STB signals;

and a circuit on/off step S302, wherein the controlled silicon Q7 receives the signal and controls the on/off state of the control electrode G according to the high/low level of the STB signal, so as to realize the on/off of the power-taking live wire.

The PIN may be freely used by a user through program control, and the PIN may be used as a General Purpose Input (GPI) or General Purpose Output (GPO) or a General Purpose Input and Output (GPIO) according to practical considerations, such as when a clkgenerator, chipselect, etc.

In some embodiments, the circuit on/off step S302 further includes:

when an STB signal is at a high level, the optocoupler is in forward conduction, a CE pin (a pin 46 in fig. 5) of the optocoupler is opened, an electric signal is transmitted to a control electrode G of the controlled silicon Q7, and when the GK of the controlled silicon Q7 is in forward voltage and is greater than a gate trigger voltage VGT, the control electrode G is triggered, the AK of the controlled silicon Q7 is conducted, and an electric power line is conducted;

when the STB signal is the low level, the opto-coupler forward blocks, and the signal of telecommunication can't transmit, and silicon controlled rectifier Q7 does not have the trigger, and AK is in the off-state, cuts off and gets the live wire.

The embodiment of the application further provides an intelligent product which comprises the low-power-consumption standby circuit.

In some embodiments, the low power consumption standby circuit may further be externally connected to a WiFi smart gateway, an APP or a bluetooth remote controller, and all electrically connected to the main control module.

The embodiment of the application also provides a power supply controller which comprises the low-power-consumption standby circuit. It should be noted that the power controller includes a power switch power controller, etc., but the present invention is not limited thereto.

The embodiment of the application further provides a ceiling lamp which comprises the low-power-consumption standby circuit and the lighting part.

It should be noted that the ceiling lamp includes Yeelight intelligent bulb, intelligent down lamp and intelligent ceiling lamp, especially a plurality of bulbs and parallelly connected ball bubble and the down lamp of down lamp, but the utility model discloses do not regard this as the limit.

Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (10)

1. A low power standby circuit, comprising:

a main control module;

the silicon controlled rectifier control module is electrically connected with the main control module; the thyristor control module further comprises:

the on-off circuit is electrically connected with the main control module through an STB port;

the silicon controlled rectifier is electrically connected with the on-off circuit and is connected with a power-taking live wire of the power grid system in series through an SW1 port;

and the auxiliary power supply unit is used for supplying power to the main control module, is electrically connected with a power grid system and is arranged at the front end of the SW1 port.

2. The low power consumption standby circuit of claim 1, further comprising a main power supply unit electrically connected to the load.

3. The low power consumption standby circuit according to claim 1, wherein the auxiliary power supply unit further comprises: the power supply comprises a first rectifying and filtering circuit, a voltage division circuit, an RCD absorption circuit, a flyback transformer and a secondary Schottky rectifying and filtering circuit which are electrically connected, wherein the secondary Schottky rectifying and filtering circuit is electrically connected with the main control module.

4. The low power consumption standby circuit according to claim 1, wherein the main control module further comprises a second rectifying and filtering circuit, a zero-crossing detection circuit and a wireless module, wherein the second rectifying and filtering circuit is connected in parallel with the zero-crossing detection circuit, the wireless module comprises an MCU and a wireless communication module electrically connected to the MCU, and the wireless communication module is electrically connected to the on-off circuit through an STB port.

5. The low power consumption standby circuit of claim 4, wherein the wireless communication module is configured as one or a combination of WiFi and Bluetooth.

6. The low power consumption standby circuit according to claim 4 or 5, wherein the on-off circuit further comprises a noise reduction circuit and an optical coupler, the noise reduction circuit is electrically connected with an STB port of the wireless module, and output pins of the optical coupler are respectively connected with A, G pins of the thyristor.

7. A smart product comprising a low power standby circuit according to any one of claims 1 to 6.

8. The smart product of claim 7, wherein the low power standby circuit is further externally connected to a WiFi smart gateway, an APP or a bluetooth remote controller, and is electrically connected to the main control module.

9. A power supply controller comprising the low power standby circuit of any one of claims 1 to 6.

10. A ceiling lamp, characterized by comprising the low power standby circuit of any one of claims 1 to 6 and a lighting component.

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