CN114980431A - Supply power source for zero-line-free dimming system - Google Patents

Supply power source for zero-line-free dimming system Download PDF

Info

Publication number
CN114980431A
CN114980431A CN202210646156.1A CN202210646156A CN114980431A CN 114980431 A CN114980431 A CN 114980431A CN 202210646156 A CN202210646156 A CN 202210646156A CN 114980431 A CN114980431 A CN 114980431A
Authority
CN
China
Prior art keywords
voltage
circuit
power supply
dimming system
zero
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210646156.1A
Other languages
Chinese (zh)
Inventor
赵显明
马士强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiale Technology Co ltd
Original Assignee
Jiale Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiale Technology Co ltd filed Critical Jiale Technology Co ltd
Priority to CN202210646156.1A priority Critical patent/CN114980431A/en
Publication of CN114980431A publication Critical patent/CN114980431A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/175—Controlling the light source by remote control
    • H05B47/19—Controlling the light source by remote control via wireless transmission
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • 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

Abstract

The invention provides a power supply for a zero-line-free dimming system, and belongs to the technical field of power supplies. It has solved current supply source and can't provide stable operating power scheduling problem. The power supply for the zero-line-free dimming system comprises an alternating current power supply, a dimming system and a load, wherein the dimming system is connected in series and comprises a rectification control circuit, a setting circuit, a comparison circuit, a switching circuit, a standby power supply and an intelligent controller, the rectification control circuit is used for rectifying alternating current voltage and outputting pulsating voltage, the setting circuit receives the pulsating voltage and outputs voltage in a wave trough interval, the comparison circuit receives the voltage in the wave trough interval and outputs a result signal, the switching circuit receives the result signal and outputs breakover voltage or base voltage, the standby power supply receives the breakover voltage and outputs compensation voltage, and the switching circuit comprises a transistor, a differential amplifier, a first resistor, a second resistor and a trigger. The invention has the advantages that the power can be compensated and supplied through the double power supplies, so that the dimming system can stably operate, and the like.

Description

Power supply for zero-line-free dimming system
Technical Field
The invention belongs to the technical field of power supplies, and particularly relates to a power supply for a zero-line-free dimming system.
Background
In the field of light-emitting control, a dimmer is used to adjust the light-emitting brightness of a lamp load. The dimmer is connected in series between a power supply and a lamp load (load), and a switch is arranged in the dimmer through a phase control technology, so that the dimmer is switched on or off according to a fixed phase angle relation formed by the phase of an alternating current power supply, and the effect of controlling the luminous brightness of the load is achieved. The dimming modes of the conventional dimmer include: silicon controlled rectifier dimming (leading phase control), MOSFET soft switching dimming (lagging phase control) is used, and modes such as wireless communication system dimming, switch dimming and the like are added; silicon controlled rectifier dimming and MOSFET soft switching dimming mode are used to change the effective output voltage of the power grid in a chopping mode to perform dimming; the wireless communication dimming mode is realized by adding a wireless transmitting unit in the dimmer and adding a wireless receiving unit in the lamp by adopting the traditional wireless communication protocol (ZigBee, WIFI, Bluetooth and the like).
Furthermore, the lamp load and the dimmer are powered by a single power source (e.g., commercial power), wherein for SCR dimming, the single power source can provide stable power for the lamp load and the dimmer because no other components are required to supply additional power.
However, in the case of using MOSFET soft switching dimming and adding the wireless communication dimming mode, since the working power required by the wireless transmitting unit and the wireless receiving unit needs to be added, when a single power supply needs to provide working power to the lamp load, the dimmer, the wireless transmitting unit and the wireless receiving unit at the same time, the required working power is increased, so that the single power supply cannot provide stable working power, and the dimmer cannot stably dim in a wireless communication manner.
To solve the above problems, a power supply is needed to provide the operating power required by the system according to the operating status of the dimming system, so as to achieve the effect of stable operation of the system.
Disclosure of Invention
The present invention is directed to solve the above problems in the prior art, and an object of the present invention is to provide a power supply for a zero-line dimming system, which can provide operating power required by the system according to the use state of the dimming system.
The purpose of the invention can be realized by the following technical scheme: a supply power for a zero-line-free dimming system is characterized by comprising an alternating current power supply, a dimming system and a load, wherein the dimming system and the load are connected in series, the dimming system comprises a rectification control circuit, a setting circuit, a comparison circuit, a switching circuit, a standby power supply and an intelligent controller, the rectification control circuit is used for rectifying alternating current voltage and outputting pulsating voltage, the setting circuit receives pulsating voltage and outputs voltage in a wave trough interval, the comparison circuit receives voltage in a wave trough interval and outputs a result signal, the switching circuit receives the result signal and outputs conducting voltage or basic voltage, the standby power supply receives conducting voltage and outputs compensating voltage, the intelligent controller comprises a wireless connection module, when the wireless connection module is started, the intelligent controller receives compensating voltage and outputs a power supply switching instruction, the switching circuit comprises a transistor, a differential amplifier, a first resistor, a second resistor and a trigger.
The working principle of the invention is as follows: when the intelligent controller is in a general use state, the alternating current power supply provides power needed by the dimming system, and when the wireless connection module in the intelligent controller is started, the standby power supply can be started through the switching circuit to provide compensation voltage for the intelligent controller; the dimming system can stably run and operate in a dual-power supply interactive compensation power supply mode.
In the above power supply for the zero-line dimming system, the rectification control circuit includes a rectification block and a load output control block, and the load output control block includes a first mosfet and a second mosfet.
In the above power supply for the zero-line-free dimming system, the setting circuit includes a first setting resistor, a second setting resistor, a third setting resistor, a fourth setting resistor, and a zener diode.
In the above power supply for the zero-line-less dimming system, the comparison circuit includes a first comparator and a bipolar transistor.
In the above power supply for the zero-line-free dimming system, the switching circuit is connected with a cut-off circuit and a standby power supply.
In the above power supply for the zero-line-less dimming system, the cut-off circuit includes a transistor, and the cut-off circuit is coupled to the switching circuit.
In the above power supply for the zero-line-free dimming system, the intelligent controller includes a wireless connection module, a control module and a manual control interface.
In the above power supply for the zero-line-free dimming system, the comparison circuit is connected to the power detection and judgment circuit.
In the above power supply for the zero-line-free dimming system, the power detection and determination circuit includes a filter capacitor, a second comparator, a third resistor, and a fourth resistor.
Compared with the prior art, the invention has the advantage that the dimming system can stably operate by compensating power supply through double power supplies.
Drawings
FIG. 1 is a system architecture diagram of the present invention.
Fig. 2 is a circuit schematic of the system of the present invention.
Fig. 3 is a waveform diagram (one) of the present invention.
Fig. 4 is a waveform diagram (two) of the present invention.
In the figure, 1, an alternating current power supply; 2. a load; 10. a rectification control circuit; 11. a rectification block; 12. a load output control block; 20. a setting circuit; 21. a first set resistance; 22. a second setting resistor; 23. a third set resistance; 24. a fourth setting resistance; 25. a Zener diode; 30. a comparison circuit; 31. a first comparator; 32. a bipolar transistor; 40. a switching circuit; 41. a transistor; 42. a differential amplifier; 43. a first resistor; 44. a second resistor; 45. a trigger; 50. a standby power supply; 60. a cutoff circuit; 70. an intelligent controller; 71. a control module; 72. a wireless connection module; 73. a manual control interface; 80. a power detection and judgment circuit; 81. a filtering capacitor; 82. a third resistor; 83. a fourth resistor; 84. a second comparator; 100. a dimming system; 121. a first metal oxide semiconductor field effect transistor; 122. a second metal oxide semiconductor field effect transistor; A. a power node; v1, alternating voltage; v2, ripple voltage; v3, threshold voltage; v4, valley interval voltage; v5, compensation voltage; vf, threshold voltage.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1-4, the power supply for a zero-line dimming system includes an ac power supply 1, a dimming system 100 and a load 2 connected in series, the dimming system 100 includes a rectification control circuit 10, a setting circuit 20, a comparison circuit 30, a switching circuit 40, a standby power supply 50, and an intelligent controller 70, the rectification control circuit 10 is configured to rectify an ac voltage and output a ripple voltage V2, the setting circuit 20 receives the ripple voltage and outputs a voltage V4 during a valley interval, the comparison circuit 30 receives the voltage V4 during the valley interval and outputs a result signal, the switching circuit 40 receives the result signal and outputs a conducting voltage or a base voltage, the standby power supply 50 receives the conducting voltage and outputs a compensation voltage V5, the intelligent controller 70 includes a wireless connection module 72, when the wireless connection module 72 is activated, the intelligent controller 70 receives the compensation voltage V5 and outputs a power switching command, the switching circuit 40 includes a transistor 41, a differential amplifier 42, a first resistor 43, a second resistor 44, and a flip-flop 45, wherein the switching circuit 40 outputs a turn-on voltage according to the result signal or outputs a base voltage corresponding to the setting circuit 20, the differential amplifier 42 amplifies the turn-on voltage of the transistor 41 into an amplified voltage, the amplified voltage is divided by the first resistor 43 and the second resistor 44 and input to the positive input terminal of the flip-flop 45, the output terminal of the flip-flop 45 outputs the turn-on voltage, and the standby power 50 is triggered.
To put it more concretely, the rectification control circuit 10 includes a rectification block 11 and a load output control block 12, the load output control block 12 includes a first mosfet 121 and a second mosfet 122, the rectification control circuit 10 rectifies the ac voltage V1, and then outputs a pulsating voltage V2 from the output terminal of the rectification block 11.
In more detail, the setting circuit 20 includes a first setting resistor 21, a first setting resistor 22, a third setting resistor 23, a fourth setting resistor 24 and a zener diode 25, the setting circuit 20 sets a threshold voltage V3 corresponding to the ripple voltage V2 according to the characteristics of the load 2, and the threshold voltage V3 extracts the ripple voltage V2 and outputs a valley interval voltage V4.
In more detail, the comparator circuit 30 includes a first comparator 31 and a bipolar transistor 32, the comparator circuit 30 compares the valley region voltage V4 with a threshold voltage Vf to output a result signal, when the valley region voltage V4 is equal to or less than the threshold voltage Vf, the bipolar transistor 32 is turned on; when the valley voltage is at the threshold voltage Vf, the bipolar transistor 32 is not conducted, so the resulting signal is the signal indicating whether the bipolar transistor 32 is conducted or not.
To be more specific, the switching circuit 40 is connected with the cut-off circuit 60 and the standby power source 50, the standby power source 50 is coupled with the flip-flop 45 of the switching circuit 40, the standby power source 50 outputs a compensation voltage V5 according to the turn-on voltage, the power node a is coupled with the switching circuit 40 and the standby power source 50, the base voltage or the compensation voltage V5 is input to the power node a, and the voltage of the power node a is the base voltage or the compensation voltage V5; wherein the voltage of the power node A is provided to the operation power input terminal of the first comparator 31 of the comparison circuit 30, the operation power input terminal of the differential amplifier 42, the operation power input terminal of the flip-flop 45 and the power input terminal of the intelligent controller 70.
In further detail, the cut-off circuit 60 includes a transistor, the cut-off circuit 60 is coupled to the switching circuit 40 and the standby power supply 50, and the cut-off circuit 60 cuts off the input power node a of the basic voltage according to the compensation voltage V5.
In further detail, the intelligent controller 70 includes a wireless connection module 72, a control module 71 and a manual control interface 73, the intelligent controller 70 is coupled to the power node a, and the control module 71 can control the light emitting brightness of the load 2; the wireless connection module 72 is used to wirelessly connect with the smart mobile device, and operate the control module 71 in a wireless connection manner to further control the light emitting brightness of the load 2; the manual control interface 73 is used to provide a wired connection way to operate the control module 71 from the outside, so as to control the light emitting brightness of the load 2.
To be more specific, the comparison circuit 30 is connected to a power detection and determination circuit 80.
To be more specific, the power detection and determination circuit 80 includes a filtering capacitor 81, a second comparator 84, a third resistor 82, and a fourth resistor 83, wherein the voltage of the power node a is filtered by the filtering capacitor 81, and then divided by the third resistor 82 and the fourth resistor 83 to generate a detection voltage, the detection voltage is input to the positive input terminal of the second comparator 84, the second comparator 84 outputs a system voltage signal to the control module 71 of the intelligent controller 70, when the conduction signal output by the control module 71 is that the voltage of the current power node a is insufficient, it indicates that the power used by the load 2 is excessive, that is, the light-emitting brightness of the load 2 exceeds the set limit, the load 2 is turned off by the load output control block 12, so that the light-emitting brightness of the load 2 is not increased, and the load 2 is prevented from using excessive power; on the contrary, when the on signal outputted by the control module 71 is that the voltage of the current power node A is sufficient, it means that the power used by the load 2 is proper, that is, the light emitting brightness of the load 2 is proper, and the load 2 is kept on through the load output control block 12.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Although a large number of terms are used here more, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims (9)

1. A supply power for a zero-line-free dimming system is characterized by comprising an alternating current power supply (1), a dimming system (100) and a load (2) which are connected in series, wherein the dimming system (100) comprises a rectification control circuit (10), a setting circuit (20), a comparison circuit (30), a switching circuit (40), a standby power supply (50) and an intelligent controller (70), the rectification control circuit (10) is used for rectifying alternating current voltage and outputting pulsating voltage (V2), the setting circuit (20) receives the pulsating voltage (V2) and outputs trough interval voltage (V4), the comparison circuit (30) receives the trough interval voltage (V4) and outputs a result signal, the switching circuit (40) receives the result signal and outputs conducting voltage or basic voltage, the standby power supply (50) receives the conducting voltage and outputs compensation voltage (V5), the intelligent controller (70) comprises a wireless connection module (72), when the wireless connection module (72) is started, the intelligent controller (70) receives a compensation voltage (V5) and outputs a power supply switching instruction, and the switching circuit (40) comprises a transistor (41), a differential amplifier (42), a first resistor (43), a second resistor (44) and a trigger (45).
2. A supply power supply for a zero-line-less dimming system according to claim 1, wherein: the rectification control circuit (10) comprises a rectification block (11) and a load output control block (12), wherein the load output control block (12) comprises a first metal oxide semiconductor field effect transistor (121) and a second metal oxide semiconductor field effect transistor (122).
3. A supply power supply for a zero-line-less dimming system according to claim 1, wherein: the setting circuit (20) comprises a first setting resistor (21), a second setting resistor (22), a third setting resistor (23), a fourth setting resistor (24) and a zener diode (25).
4. A supply power supply for a zero-line-less dimming system according to claim 1, wherein: the comparator circuit (30) includes a first comparator (31) and a bipolar transistor (32).
5. A zero-line-less dimming system supply power supply according to claim 1, wherein: the switching circuit (40) is connected with a cut-off circuit (60) and a standby power supply (50).
6. A supply power supply for a zero-line dimming system according to claim 5, wherein: the cut-off circuit (60) comprises a triode, and the cut-off circuit (60) is coupled with the switching circuit (40).
7. A supply power supply for a zero-wire-less dimming system according to claim 1, wherein: the intelligent controller (70) comprises a wireless connection module (72), a control module (71) and a manual control interface (73).
8. A supply power supply for a zero-line-less dimming system according to claim 1, wherein: the comparison circuit (30) is connected with a power detection and judgment circuit (80).
9. A supply power supply for a zero-line dimmer system as set forth in claim 8, wherein: the power detection and judgment circuit (80) comprises a filter capacitor (81), a second comparator (84), a third resistor (82) and a fourth resistor (83).
CN202210646156.1A 2022-06-09 2022-06-09 Supply power source for zero-line-free dimming system Pending CN114980431A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210646156.1A CN114980431A (en) 2022-06-09 2022-06-09 Supply power source for zero-line-free dimming system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210646156.1A CN114980431A (en) 2022-06-09 2022-06-09 Supply power source for zero-line-free dimming system

Publications (1)

Publication Number Publication Date
CN114980431A true CN114980431A (en) 2022-08-30

Family

ID=82962439

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210646156.1A Pending CN114980431A (en) 2022-06-09 2022-06-09 Supply power source for zero-line-free dimming system

Country Status (1)

Country Link
CN (1) CN114980431A (en)

Similar Documents

Publication Publication Date Title
CN102052592B (en) Dimmable led lamp
US10531531B2 (en) Digital dimming solution for LED applications including a phase-cut dimmer
CN103369783A (en) System and method for supplying constant power to luminuous loads with power factor correction
CN210629929U (en) Control circuit and power supply circuit of lighting lamp
CN211702503U (en) Novel intelligent control silicon controlled rectifier light modulation switch and light-adjustable lamp thereof
JP2019212626A (en) Master-slave lighting device, master-slave lighting device control method, and smart lighting system
US20230380028A1 (en) Light dimming system
JP7066060B2 (en) Drive circuit and related lamps
CN217770429U (en) Zero-line-free dimming system power supply
CN101771404A (en) LED control chip
CN109379806B (en) Dimming drive circuit, dimming controller and LED lamp
CN114980431A (en) Supply power source for zero-line-free dimming system
CN212163763U (en) Silicon controlled rectifier dimming control circuit
CN212344104U (en) LED fluorescent tube based on silicon controlled rectifier adjusts luminance
US11239739B2 (en) Power fetching system for no neutral switch and control method thereof, no neutral switch
CN110798942A (en) Induction lamp control equipment and system thereof
CN111194118A (en) LED driver and intelligent LED control system
CN112601325A (en) Intelligent lamp and driving power supply thereof
US11337284B2 (en) Capacitive drop power supply for lighting control
US10841991B2 (en) Dimmer interface having reduced power consumption
CN113747634B (en) Light modulator
CN211297073U (en) LED driver and intelligent LED control system
CN210469809U (en) Driver
Yan et al. Integrated analog dimming controller for 0–10V dimming system
CN213403572U (en) Intelligent dimming controller circuit with multiple control modes

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination