CN218633689U - Zigbee driving discharge circuit, power supply and lamp - Google Patents
Zigbee driving discharge circuit, power supply and lamp Download PDFInfo
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- CN218633689U CN218633689U CN202221016530.1U CN202221016530U CN218633689U CN 218633689 U CN218633689 U CN 218633689U CN 202221016530 U CN202221016530 U CN 202221016530U CN 218633689 U CN218633689 U CN 218633689U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The application discloses a Zigbee driving discharge circuit, a power supply and a lamp. The discharge circuit comprises a power supply unit, a control unit and a control unit, wherein the power supply unit is used for supplying power to the circuit and comprises an input end and an output end; the Zigbee driving unit is used for outputting PWM signals and comprises a power supply end; the power supply end is connected to the output end of the power supply unit; the discharging unit is used for discharging the power supply end of the Zigbee driving unit and comprises a power taking end and a discharging end, the power taking end is connected with the input end of the power supply unit, and the discharging end is connected with the power supply end of the Zigbee driving unit; the discharging unit also comprises a reference voltage source and a switch module; one end of the switch module is connected with the power taking end, and the other end of the switch module is connected with the discharging end; the input end of the reference voltage source is connected with the power taking end, and the output end of the reference voltage source is connected with the switch module. According to the embodiment of the application, effective network clearing of the lamp adopting the Zigbee driving unit can be realized, and the use reliability of the lamp is improved.
Description
Technical Field
The application relates to the field of lighting equipment, in particular to a Zigbee driving discharge circuit, a power supply and a lamp.
Background
In the existing lamps adopting the Zigbee driving unit in the market, because the discharging speed of the power supply end of the Zigbee driving unit is slow, after the power supply is cut off, the Zigbee driving unit can still work for a period of time, so that the network can not be cleared in time. In order to solve the above problem, it is necessary to discharge the power source terminal of the Zigbee driving unit in time each time the light fixture is turned off.
In an existing discharging implementation manner, a discharging circuit is generally applied to a control chip, the control chip has an enable terminal for controlling a working state, and the control chip can detect a power failure through detecting a power failure and discharge the enable terminal of the control chip, so that the control chip can detect a voltage change through the enable terminal to realize switching of the working state of the chip. However, since the Zigbee driving unit does not have an AC power failure detection pin, nor a corresponding enable terminal for controlling the operating state, a technical scheme that the power failure is detected through a common power supply in the prior art, and then the operating state of the chip is controlled through the enable terminal of the control chip cannot be adopted.
Therefore, the prior art cannot solve the problem that how the Zigbee driving unit effectively detects the power failure when the lamp is turned off every time, and is difficult to clear the Zigbee driving unit in time when the lamp is turned off every time, so that the use reliability of the lamp with the Zigbee driving unit is reduced.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem of difficulty in network clearing in the background art, the application provides the Zigbee driving discharge circuit, which can rapidly discharge the power supply end of the Zigbee driving unit when a power supply is rapidly switched on and switched off, so that the use reliability of a lamp with the Zigbee driving unit is improved.
In a first aspect, a Zigbee driving discharge circuit in the present application includes:
the power supply unit is used for supplying power to the circuit and comprises an input end and an output end;
the Zigbee driving unit is used for outputting a PWM signal and comprises a power supply end; the power supply end is connected to the output end of the power supply unit; and
the discharging unit is used for discharging the power supply end of the Zigbee driving unit and comprises a power taking end and a discharging end, wherein the power taking end is connected with the input end of the power supply unit, and the discharging end is connected with the power supply end of the Zigbee driving unit;
the discharging unit further comprises a reference voltage source and a switch module;
one end of the switch module is connected with the power taking end, and the other end of the switch module is connected with the discharging end; the input end of the reference voltage source is connected with the power taking end, and the output end of the reference voltage source is connected with the switch module;
the voltage value input by the power taking end is a first voltage value; the voltage value output by the reference voltage source is a second voltage value;
when the first voltage value is greater than or equal to the second voltage value, the switch module is in an off state; when the first voltage value is smaller than the second voltage value, the switch module is turned on, and the power end of the Zigbee driving unit discharges through the discharging unit.
In one embodiment, the reference voltage source includes a first diode and a first capacitor;
the anode of the first diode is connected with the power taking end of the discharge unit, and the cathode of the first diode is connected with the output end of the reference voltage source;
and the anode of the first capacitor is connected to the output end of the reference voltage source, and the cathode of the first capacitor is connected with the grounding end.
In an embodiment, the reference voltage source includes a valley filling circuit, an input terminal of the valley filling circuit is connected to a power taking terminal of the discharge unit, and an output terminal of the valley filling circuit is connected to an output terminal of the reference voltage source.
In an embodiment, the discharge unit further comprises a switch module, the switch module comprising an optocoupler;
the optical coupler comprises an input side positive end, an input side negative end, an output side positive end and an output side negative end;
the positive terminal of the input side is connected with the output end of the reference voltage source, the negative terminal of the input side is connected with the electricity taking end of the discharge unit, the positive terminal of the output side is connected with the discharge end of the discharge unit, and the negative terminal of the output side is connected with the grounding end.
In one embodiment, the switch module includes a first transistor and a second transistor;
the base electrode of the first triode is connected with the electricity taking end of the discharging unit, the collector electrode of the first triode is connected with the base electrode of the second triode, and the emitter electrode of the first triode is connected with the output end of the reference voltage source;
and the collector electrode of the second triode is connected with the discharge end of the discharge unit, and the emitter electrode of the second triode is connected with the grounding end.
In an embodiment, the power supply unit includes a Zigbee power supply module, an input end of the Zigbee power supply module receives a constant voltage direct current, and an output end of the Zigbee power supply module is connected to a power supply end of the Zigbee drive unit and supplies power to the Zigbee drive unit.
In one embodiment, the power supply unit further comprises a rectification module and a constant voltage module;
the input end of the rectification module is used for being connected with a mains supply, and the output end of the rectification module is connected with the input end of the constant voltage module;
the output end of the constant voltage module is connected with the input end of the Zigbee power supply module;
and the electricity taking end of the discharge unit is connected between the rectification module and the constant voltage module.
In one embodiment, the constant voltage module includes an isolation device, a second diode, and a second capacitor;
one end of the isolating device is connected with the output end of the rectifying module, and the other end of the isolating device is connected with the anode of the second diode; the cathode of the second diode is connected with the input end of the Zigbee power supply module, the anode of the second capacitor is connected with the input end of the Zigbee power supply module, and the cathode of the second capacitor is connected with the grounding end.
In an embodiment, an adjusting resistor is disposed between the power end of the Zigbee driving unit and the discharging end of the discharging unit.
In a second aspect, the present application further discloses a power supply, where the power supply includes any one of the Zigbee driving discharge circuits.
In a third aspect, the present application further discloses a lamp including any one of the Zigbee drive discharge circuits described above.
Therefore, the Zigbee driving discharge circuit, the power supply and the lamp in the application realize detection of power failure of the power supply and quick discharge of the power supply end of the Zigbee driving unit by arranging the power taking end and the discharge end of the discharge unit. Therefore, effective network clearing of the lamp with the Zigbee driving unit is realized, and the use reliability of the lamp is improved.
Drawings
Fig. 1 is a schematic structural diagram of a Zigbee driving discharge circuit according to an embodiment of the present application.
Fig. 2 is another schematic structural diagram of a Zigbee driving discharge circuit according to an embodiment of the present application.
Fig. 3 is a schematic diagram of another structure of a Zigbee driving discharge circuit according to an embodiment of the present application.
Fig. 4 is a schematic structural diagram of a Zigbee driving discharge circuit according to an embodiment of the present application.
Fig. 5 is a schematic structural diagram of a power supply provided in an embodiment of the present application.
Fig. 6 is a schematic structural diagram of a lamp provided in an embodiment of the present application.
Detailed Description
The following detailed description of the preferred embodiments of the present application, taken in conjunction with the accompanying drawings, will make the advantages and features of the present application more readily appreciated by those skilled in the art, and thus will more clearly define the scope of the invention.
Referring to the drawings, wherein like reference numbers refer to like elements, the principles of the present application are illustrated as being implemented in a suitable computing environment. The following description is based on illustrated embodiments of the application and should not be taken as limiting the application with respect to other embodiments that are not detailed herein.
The term "module" as used herein may be a software or hardware object that executes on the computing system. The different components, modules, engines, and services described herein may be implementation objects on the computing system. The apparatus and method described herein may be implemented in software, but may also be implemented in hardware, and are within the scope of the present application.
Reference herein 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 application. 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. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein may be combined with other embodiments.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
Referring to fig. 1, fig. 1 illustrates a structure of a Zigbee driving discharge circuit according to an embodiment of the present application.
As shown in fig. 1, in an embodiment, the Zigbee driving discharging circuit includes a power supply unit 1, a Zigbee driving unit 2, and a discharging unit 3.
The power supply unit 1 is used for supplying power to the Zigbee drive unit 2, and includes an input end and an output end. The power supply connected to the input of the power supply unit 1 may be either dc or ac.
Since the Zigbee driving unit 2 is powered by dc power, when the voltage input to the input terminal of the power supply unit 1 is ac, a module having a function of converting ac to dc may be disposed in the power supply unit 1 according to the requirement of practical application, so that the power supply unit 1 can output dc to the power supply terminal of the Zigbee driving unit 2.
The Zigbee driving unit 2 may be used to output a PWM signal, including a power supply terminal. Which is connected to the output of the power supply unit 1.
The discharging unit 3 may be configured to discharge a power supply end of the Zigbee driving unit 2, and includes a power taking end and a discharging end. The power taking end is connected with the input end of the power supply unit 1, and the discharging end is connected with the power supply end of the Zigbee driving unit 2.
In the present embodiment, the discharge unit 3 further includes a reference voltage source 31 and a switch module 32.
One end of the switch module 32 is connected to the power-taking end, and the other end of the switch module 32 is connected to the discharging end. The input end of the reference voltage source 31 is connected with the power taking end, and the output end of the reference voltage source 31 is connected with the switch module 32.
The reference voltage source 31 has a main function of generating a reference voltage and providing the reference voltage to the switch module 32, so that the switch module 32 can determine whether the current power supply is turned off or not by using a relationship between the reference voltage and a voltage input by the power-taking terminal.
In one embodiment, the reference voltage source 31 may be implemented by using a capacitive storage manner, that is, when the input terminal of the power supply unit 1 is powered on, the reference voltage source 31 is charged; when the input end of the power supply unit 1 is powered off, the power-down speed of the capacitor is configured to be slower than the power-down speed of the voltage at the power-taking end, and when the voltage value at the power-taking end is powered down to a certain voltage value smaller than the voltage at the two ends of the reference voltage source 31, the switch module 32 is turned on, so that the power supply end of the Zigbee drive unit 2 is turned on with the ground end through the switch module 32, and the Zigbee drive unit 2 performs discharging and network clearing.
In practical applications, the reference voltage source 31 may be selected according to actual situations and specific needs, for example, an electrolytic capacitor or a valley fill circuit, and an external voltage source may also be used. In the present application, the selection of the reference voltage source 31 is not limited to the above implementation.
The voltage value input by the power-taking terminal is a first voltage value, and the voltage value output by the reference voltage source 31 is a second voltage value.
In a specific working scene, when the first voltage value acquired by the power taking end of the discharge unit 3 is greater than or equal to the second voltage value of the reference voltage source 31 when the lamp is turned on, the switch module 32 is in a disconnected state, and the Zigbee driving unit 2 normally works; when the lamp is turned off, the voltage output from the power supply to the power supply unit 1 starts to be powered down until the first voltage value is smaller than the second voltage value, the switch module 32 is turned on, and the power supply end of the Zigbee driving unit 2 is discharged through the discharging unit 3. Of course, the switch module 32 is turned on depending on a voltage difference between the first voltage value and the second voltage value, and the difference of the voltage difference is different for different components or different implementation manners, which is not limited in this application.
Whether the conventional power failure detection circuit can detect power failure depends on whether the voltage difference between the power taking end and the grounding end can enable the switch to be turned on. Due to the design of the existing power supply, the voltage at the power taking end is low in reduction speed, the waiting time for power failure is long, and the turning-off of the lamp cannot be detected in time under the scene that the lamp is turned off and turned on within a period of time, so that effective network cleaning cannot be performed.
In the application, after the reference voltage source 32 is added, the power failure detection can be realized only by a small voltage drop, and the power supply end of the Zigbee drive unit 2 is quickly discharged, so that the discharge time of the Zigbee drive unit 2 is reduced, the quick network clearing of the lamp with the Zigbee drive unit 2 is realized, and the use reliability of the lamp is improved.
Referring to fig. 2, fig. 2 illustrates another structure of a Zigbee driving discharge circuit according to an embodiment of the present application.
As shown in fig. 2, in an embodiment, the reference voltage source 31a includes a first diode D1 and a first capacitor C1;
the anode of the first diode D1 is connected to the power-taking end of the discharge unit 3, and the cathode is connected to the output end of the reference voltage source 31 a;
the first capacitor C1 has a positive electrode connected to the output terminal of the reference voltage source 31a and a negative electrode connected to the ground terminal.
The first capacitor C1 is used for charging and discharging, wherein the voltage applied across the first capacitor C1 is the second voltage value. Generally, when the lamp is normally powered, the second voltage value of the input end of the power supply unit 1 may be set to be less than or equal to the first voltage value, and when the lamp is powered off, the input end of the power supply unit 1 is powered off and the second voltage value of the first capacitor C1 is required to be greater than the second voltage value, so as to trigger the discharging of the discharging unit 3, so that the specification of the first capacitor C1 may be selected according to the actual requirement, and the specification of the first capacitor C1 is not limited in the present application.
In an embodiment, the discharge unit 3 further includes a switch module 32a, and the switch module 32a includes an optocoupler U1;
the optocoupler U1 comprises an input side positive end, an input side negative end, an output side positive end and an output side negative end;
the positive terminal of the input side is connected with the output terminal of the reference voltage source 31a, the negative terminal of the input side is connected with the power-taking terminal of the discharge unit 3, the positive terminal of the output side is connected with the discharge terminal of the discharge unit 3, and the negative terminal of the output side is connected with the ground terminal.
The first diode D1 has the function that when the reference voltage source 31a discharges, its current flows only to the output side of the reference voltage source 31a, i.e. the positive terminal of the input side of the optical coupler U1 in fig. 2.
In an embodiment, a voltage dividing circuit 33 may be disposed between the reference voltage source 31a and the power-taking terminal of the discharge unit 3, so that when the Zigbee driving discharge circuit normally operates, the first voltage value is greater than the second voltage value, that is, the voltage of the negative terminal of the input side of the optical coupler U1 is higher than the voltage of the positive terminal of the input side of the optical coupler U1.
Specifically, the discharging unit 3 takes power from the input terminal of the power supply unit 1, and charges the first capacitor C1 of the reference voltage source 31a after voltage division by the voltage dividing circuit 33. When the Zigbee driving discharge circuit normally works, the voltage of the negative end of the input side of the optocoupler U1 is higher than the voltage of the positive end of the input side of the optocoupler U1, and at the moment, a light emitting tube of the optocoupler U1 is not conducted, so that the output side of the optocoupler U1 is not conducted; when the Zigbee driving discharge circuit is powered off, the voltage of the negative end of the input side of the optocoupler U1 is rapidly reduced, and the capacitor discharges slowly, so that the voltage of the positive end of the input side of the optocoupler U1 is higher than the voltage of the negative end of the input side, and then the luminotron of the optocoupler U1 is switched on, thereby switching on the output side of the optocoupler U1, rapidly reducing the voltage of the power supply end of the Zigbee driving unit 2, and rapidly discharging.
Referring to fig. 3, fig. 3 illustrates a structure of another Zigbee driving discharge circuit according to an embodiment of the present application.
As shown in fig. 3, in another embodiment, the switch module 32b includes a first transistor Q1 and a second transistor Q2;
the base electrode of the first triode Q1 is connected with the electricity taking end of the discharging unit 3, the collector electrode of the first triode Q1 is connected with the base electrode of the second triode Q2, and the emitter electrode of the first triode Q1 is connected with the output end of the reference voltage source 31;
the collector of the second triode Q2 is connected to the discharging end of the discharging unit 3, i.e., to the power supply end of the Zigbee driving unit 2, and the emitter is connected to the ground end.
The first triode Q1 is a PNP triode, and the second triode Q2 is an NPN triode. It can be understood that the type of the transistor may be replaced according to actual conditions, and for example, a switching MOS transistor may also be used as a switching component of the switching module 32b, which is not limited in this application.
Specifically, when the Zigbee driving discharge circuit normally works, the first triode Q1 is cut off, so that the second triode Q2 is cut off, and the discharge unit 3 does not discharge to the power supply end of the Zigbee driving unit 2; when the Zigbee driving discharge circuit is powered off, the first triode Q1 is turned on, so the second triode Q2 is turned on, and the voltage at the power end of the Zigbee driving unit 2 is rapidly pulled down.
In one embodiment, a voltage divider 33a is disposed between the reference voltage source 31 and the power-out terminal of the discharge unit 3, and the voltage divider 33a includes a second resistor R2 and a third resistor R3.
One end of the second resistor R2 is connected to the power-taking end, and the other end is connected to the input end of the reference voltage source 31.
One end of the third resistor R3 is connected to the input terminal of the reference voltage source 31, and the other end is connected to the ground terminal.
The second resistor R2 and the third resistor R3 may be used as adjusting resistors, and a time difference between the power failure of the power supply unit 1a of the Zigbee driving discharge circuit and the power failure of the Zigbee driving unit 2 is set by setting a resistance ratio of the second resistor R2 to the third resistor R3.
In an embodiment, the power supply unit 1a includes a Zigbee power supply module 11, an input end of the Zigbee power supply module 11 receives direct current, and an output end of the Zigbee power supply module 11 is connected with a power source end of the Zigbee drive unit 2 and supplies power to the Zigbee drive unit 2.
Referring to fig. 4, fig. 4 illustrates a structure of another Zigbee driving discharge circuit according to an embodiment of the present application.
As shown in fig. 4, in one embodiment, the power supply unit 1b further includes a rectifying module 12 and a constant voltage module 13.
The input end of the rectification module 12 is used for being connected with the mains supply, and the output end of the rectification module 12 is connected with the input end of the constant voltage module 13;
the output end of the constant voltage module 13 is connected with the input end of the Zigbee power supply module 11;
the power-taking end of the discharging unit 3 is connected between the rectifying module 12 and the constant voltage module 13.
Specifically, the rectifying module 12 functions to rectify an ac power input from a power supply into a dc power, and the constant voltage module 13 functions to convert the input dc power into a constant voltage dc power and output the same.
In this embodiment, the ac power input to the rectifier module 12 is rectified by the rectifier bridge in the rectifier module 12 and then outputs a dc power to the constant voltage module 13, and the constant voltage module 13 receives the dc power and then outputs a constant voltage dc power to the Zigbee power supply module 11.
In one embodiment, the reference voltage source 31b includes a valley-fill circuit 311, an input terminal of the valley-fill circuit 311 is connected to a power-taking terminal of the switch module, and an output terminal of the valley-fill circuit 311 is connected to an output terminal of the reference voltage source 31 b.
Specifically, since the valley filling circuit 311 is provided with the capacitor having a relatively large capacitance value, after the lamp is powered off, the voltage drop rate of the output end of the valley filling circuit 311 is slower than that of the power taking end, and the voltage at the input end of the valley filling circuit 311 is compared with the voltage at the output end of the valley filling circuit 311, so as to determine whether the lamp is powered off, and further, by controlling the on/off of the switch module 32, the purpose of discharging the power end of the Zigbee driving unit 2 when the lamp is powered off is finally achieved.
In one embodiment, the constant voltage module 13 includes an isolation device T1, a second diode D2, and a second capacitor C2.
One end of the isolation device T1 is connected with the output end of the rectification module 12, and the other end of the isolation device T1 is connected with the anode of the second diode D2; the cathode of the second diode D2 is connected to the input end of the Zigbee power supply module 11, the anode of the second capacitor C2 is connected to the input end of the Zigbee power supply module 11, and the cathode of the second capacitor C2 is connected to the ground terminal.
In an embodiment, a first resistor R1 is disposed between the power source terminal of the Zigbee driving unit 2 and the discharging terminal of the discharging unit 3, and the first resistor R1 is used as an adjusting resistor to adjust the discharging speed of the discharging unit 3. The discharging speed of the discharging unit 3 can be adjusted by adjusting the resistance value of the first resistor R1, so as to ensure that the network cleaning speed of the Zigbee module is in a reasonable range.
Specifically, the smaller the resistance value of the first resistor R1, the faster the discharge speed. The actual resistance value can be set according to the voltage difference and the resistance power.
As shown in fig. 5, the power supply 5 may be an ac/dc power supply or a constant voltage/constant current power supply, and may be built in the lamp or externally arranged relative to the lamp.
The power supply 5 may include the Zigbee driving discharging circuit 4 in any of the above embodiments, and the specific structure of the Zigbee driving discharging circuit 4 may refer to the descriptions in different embodiments of fig. 1 to 4. The power supply 5 may include a case, a connection port to another component, a wire, and the like, in addition to the Zigbee drive discharge circuit 4, and the specific internal structure of the power supply 5 is not limited.
Of course, in addition, the power supply 5 may also be applied to other electronic devices, for example, a communication device or an intelligent device with a Zigbee communication module, and the application scenario of the power supply 5 is not limited in the present application.
As shown in fig. 6, the lamp 6 may be a lighting device such as a ceiling lamp, a spotlight, a table lamp, and the like, and includes the Zigbee drive discharge circuit 4 according to the above embodiment. The lamp 6 may further include a housing, an LED light source, and a power supply, so as to form a usable lamp 6 together with the Zigbee driving discharge circuit 4. Similarly, the specific structure of the Zigbee driving discharge circuit 4 may refer to descriptions in different embodiments of fig. 1 to 4, and details are not repeated in this application.
Therefore, in the lamp, the power taking end and the discharging end of the discharging unit 3 can be arranged, so that the power failure of the power supply can be detected, and the power supply end of the Zigbee driving unit 2 can be quickly discharged. Therefore, effective network clearing of the lamp with the Zigbee driving unit 2 is realized, and the use reliability of the lamp is improved.
The embodiments of the present application have been described in detail with reference to the drawings, but the present application is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present application within the knowledge of those skilled in the art.
Claims (11)
1. A Zigbee drive discharge circuit is characterized by comprising:
the power supply unit is used for supplying power to the circuit and comprises an input end and an output end;
the Zigbee driving unit is used for outputting a PWM signal and comprises a power supply end; the power supply end is connected to the output end of the power supply unit; and
the discharging unit is used for discharging the power supply end of the Zigbee driving unit and comprises a power taking end and a discharging end, wherein the power taking end is connected with the input end of the power supply unit, and the discharging end is connected with the power supply end of the Zigbee driving unit;
the discharging unit further comprises a reference voltage source and a switch module;
one end of the switch module is connected with the power taking end, and the other end of the switch module is connected with the discharging end; the input end of the reference voltage source is connected with the power taking end, and the output end of the reference voltage source is connected with the switch module;
the voltage value input by the power taking end is a first voltage value; the voltage value output by the reference voltage source is a second voltage value;
when the first voltage value is greater than or equal to the second voltage value, the switch module is in an off state; when the first voltage value is smaller than the second voltage value, the switch module is turned on, and the power end of the Zigbee driving unit discharges through the discharging unit.
2. A Zigbee drive discharge circuit as claimed in claim 1, wherein: the reference voltage source comprises a first diode and a first capacitor;
the anode of the first diode is connected with the power taking end of the discharge unit, and the cathode of the first diode is connected with the output end of the reference voltage source;
and the anode of the first capacitor is connected to the output end of the reference voltage source, and the cathode of the first capacitor is connected with the ground end.
3. A Zigbee drive discharge circuit as claimed in claim 1, wherein: the reference voltage source comprises a valley filling circuit, the input end of the valley filling circuit is connected with the electricity taking end of the discharging unit, and the output end of the valley filling circuit is connected with the switch module.
4. A Zigbee drive discharge circuit as claimed in claim 1, wherein: the switch module comprises an optocoupler;
the optical coupler comprises an input side positive end, an input side negative end, an output side positive end and an output side negative end;
the positive terminal of the input side is connected with the output end of the reference voltage source, the negative terminal of the input side is connected with the power taking end of the discharge unit, the positive terminal of the output side is connected with the discharge end of the discharge unit, and the negative terminal of the output side is connected with the grounding end.
5. A Zigbee drive discharge circuit as claimed in claim 1, wherein: the switch module comprises a first triode and a second triode;
the base electrode of the first triode is connected with the electricity taking end of the discharging unit, the collector electrode of the first triode is connected with the base electrode of the second triode, and the emitter electrode of the first triode is connected with the output end of the reference voltage source;
and the collector electrode of the second triode is connected with the discharge end of the discharge unit, and the emitter electrode of the second triode is connected with the grounding end.
6. A Zigbee drive discharge circuit as claimed in claim 1, wherein: the power supply unit comprises a Zigbee power supply module, the input end of the Zigbee power supply module receives constant-voltage direct current, and the output end of the Zigbee power supply module is connected with the power supply end of the Zigbee driving unit and supplies power to the Zigbee driving unit.
7. A Zigbee drive discharge circuit as claimed in claim 6, wherein: the power supply unit also comprises a rectifying module and a constant voltage module;
the input end of the rectification module is used for being connected with a mains supply, and the output end of the rectification module is connected with the input end of the constant voltage module;
the output end of the constant voltage module is connected with the input end of the Zigbee power supply module;
and the electricity taking end of the discharging unit is connected between the rectifying module and the constant voltage module.
8. A Zigbee drive discharge circuit as claimed in claim 7, wherein: the constant voltage module comprises an isolation device, a second diode and a second capacitor;
one end of the isolation device is connected with the output end of the rectification module, and the other end of the isolation device is connected with the anode of the second diode; the cathode of the second diode is connected with the input end of the Zigbee power supply module, the anode of the second capacitor is connected with the input end of the Zigbee power supply module, and the cathode of the second capacitor is connected with the grounding end.
9. A Zigbee drive discharge circuit as claimed in claim 1, wherein: and an adjusting resistor is arranged between the power supply end of the Zigbee driving unit and the discharge end of the discharge unit.
10. A power supply, characterized in that it comprises a Zigbee drive discharge circuit as claimed in any one of claims 1-9.
11. A luminaire characterized in that it comprises a Zigbee drive discharge circuit according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221016530.1U CN218633689U (en) | 2022-04-27 | 2022-04-27 | Zigbee driving discharge circuit, power supply and lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221016530.1U CN218633689U (en) | 2022-04-27 | 2022-04-27 | Zigbee driving discharge circuit, power supply and lamp |
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| Publication Number | Publication Date |
|---|---|
| CN218633689U true CN218633689U (en) | 2023-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221016530.1U Active CN218633689U (en) | 2022-04-27 | 2022-04-27 | Zigbee driving discharge circuit, power supply and lamp |
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| Country | Link |
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| CN (1) | CN218633689U (en) |
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