Power supply circuit and emergency power supply of UFO lamp

Abstract

The utility model discloses a power supply circuit of a UFO lamp, which comprises a UFO power supply circuit and an emergency power supply circuit, and the emergency power supply circuit comprises a first boost module, a current and voltage detection module, an emergency master control module, a wireless Bluetooth module, an external interface module and an emergency power supply module. The emergency power supply module is connected with the first boost module, the current and voltage detection module, the emergency master control module and the wireless Bluetooth module. The emergency master control module is connected with the current and voltage detection module and the first boost module, and the current and voltage detection module is also connected with the first boost module. According to the utility model, the UFO power supply, the emergency power supply, the wireless Bluetooth and the microwave sensor or the infrared sensor are integrated, so that the functions of emergency, intelligent remote control and the like can be realized, the use is convenient, the use experience of a user is greatly improved, meanwhile, the complexity of installation and maintenance can be reduced, and the universality is strong.

Description

Technical Field

[0001] The utility model relates to the technical field of UFO lamps, in particular to a power supply circuit and an emergency power supply for a UFO lamp. Background Art

[0002] At present, the power supply of common UFO lamps uses a commonly used driving power supply on the market, which is installed on the lamp through the installation holes on the power supply. However, the power supply of the current UFO lamp only has one-way input and output to realize the functions of starting and closing the lamp, without functions such as emergency and remote control. The functions are relatively single, and the user experience is poor. Therefore, it needs to be improved. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a power supply circuit and an emergency power supply for a UFO lamp to solve the problems of relatively single functions and poor user experience of existing UFO lamps.

[0004] To achieve the above purpose, the following technical solutions are adopted:

[0005] A power supply circuit for a UFO lamp includes a UFO power supply circuit and an emergency power supply circuit. The emergency power supply circuit includes a first boost module, a current and voltage detection module, an emergency main control module, a wireless Bluetooth module, an external interface module, and an emergency power supply module. The emergency power supply module is respectively connected to the first boost module, the current and voltage detection module, the emergency main control module, and the wireless Bluetooth module. The emergency main control module is respectively connected to the current and voltage detection module and the first boost module, and the current and voltage detection module is also connected to the first boost module. The wireless Bluetooth module is connected to the emergency main control module, and the wireless Bluetooth module is also used to access a Bluetooth antenna. The external interface module is connected to the emergency main control module, and the external interface module is also used to access a microwave sensor or an infrared sensor. The first boost module is also used to be connected to the LED lamp board of the UFO lamp.

[0006] Further, the emergency power supply module includes a battery charging unit composed of diode D20, MOS transistor Q10, resistor R102, resistor R103, MOS transistor Q11, resistor R104, resistor R105, and fuse F2, and a battery and mains detection unit composed of resistor R121, resistor R122, MOS transistor Q13, resistor R128, resistor R129, capacitor C41, MOS transistor Q14, resistor R123, resistor R124, capacitor C42, diode D25, diode D26, resistor R126, resistor R127, capacitor C43, and diode ZD2.

[0007] Further, the current and voltage detection module includes a voltage detection unit composed of diode D24, resistor R134, amplifier U5, capacitor C45, capacitor C44, resistor R132, resistor R131, resistor R130, and capacitor C60, and a current detection unit composed of resistor R159, capacitor C57, amplifier U6, resistor R162, resistor R161, resistor R160, capacitor C58, and capacitor C59.

[0008] Further, there are two groups of the first boost modules; each first boost module includes chip U10, chip U11, and a boost unit composed of MOS transistor Q20 and inductor T3.

[0009] Further, the emergency main control module includes main control chip U4; the second pin of the main control chip U4 is used for PWM output to control the emergency voltage and current; the third pin of the main control chip U4 is used to connect to the emergency switch; the fourth and fifth pins of the main control chip U4 are used to connect to the LED indicator and manual test; the tenth and eleventh pins of the main control chip U4 are respectively used for data sending and receiving of the wireless Bluetooth module; the nineteenth pin of the main control chip U4 is used to externally connect to the input port of a microwave sensor or an infrared sensor to receive the signal of the sensor; the twentieth pin of the main control chip U4 is used to externally connect to the control output port of a microwave sensor or an infrared sensor to control the sensor; the twenty-third pin of the main control chip U4 is the Bluetooth color temperature output A port, which is used to control the color temperature adjustment of the lamp through Bluetooth; the twenty-fourth pin of the main control chip U4 is the Bluetooth color temperature output B port, which is used to assist the Bluetooth color temperature adjustment function.

[0010] Further, the UFO power supply circuit includes an EMC electromagnetic interference and lightning protection module, a pre-stage boost module, a second-stage buck module, an auxiliary power supply module, a dimming module, and a power and color temperature adjustment module; the EMC electromagnetic interference and lightning protection module is respectively connected to the pre-stage boost module and the auxiliary power supply module, and the auxiliary power supply module is also connected to the pre-stage boost module; the pre-stage boost module and the auxiliary power supply module are both connected to the second-stage buck module, the dimming module is respectively connected to the auxiliary power supply module and the second-stage buck module; the second-stage buck module is also connected to the power and color temperature adjustment module, and the power and color temperature adjustment module is also used to connect to the LED lamp board of the UFO lamp.

[0011] An emergency power supply for a UFO lamp is also provided, which adopts the above-mentioned emergency power supply circuit and includes a power supply housing and a power supply cover plate; the power supply housing is in a cylindrical structure, and the power supply housing is also provided with a first cavity with an opening at its bottom; four first partition plates connected end to end are also installed in the middle of the first cavity, and the four first partition plates enclose a first installation cavity for installing a main control PCB board; a first fixing column is also connected to the connection part between every two adjacent first partition plates, and a first locking hole penetrating through to its bottom is also opened at the top of the first fixing column; a battery connected to the main control PCB board is also installed in the first cavity, and a Bluetooth antenna connected to the main control PCB board is also installed on the outer wall of the power supply housing; the power supply cover plate is connected to the bottom opening of the power supply housing and seals the first cavity; a first through hole is opened at the bottom of the power supply cover plate corresponding to the first locking hole, and a second through hole is also opened at the top of the power supply housing corresponding to the first locking hole.

[0012] Further, two third partition plates are also connected to the inner wall of the first cavity, the two third partition plates are arranged at intervals, and a first connecting plate is also connected between one ends of the two third partition plates; a third installation cavity is enclosed between the two third partition plates and the first connecting plate, and a switch PCB board connected to the main control PCB board is also installed in the third installation cavity; a DIP switch is also installed on the switch PCB board; a debugging hole is also opened on the outer wall of the power supply housing corresponding to the DIP switch, and a dust cover is also installed in the debugging hole.

[0013] Further, an infrared receiver connected to the main control PCB board is also installed on the outer wall of the power supply housing.

[0014] Further, an indicator key connected to the main control PCB board is also installed on the outer wall of the power supply housing.

[0015] Adopting the above scheme, the beneficial effects of the present utility model are as follows:

[0016] The present utility model integrates a UFO power supply, an emergency power supply, wireless Bluetooth, and a microwave sensor or an infrared sensor into one body, can realize functions such as emergency and intelligent remote control, is convenient to use, greatly improves the user experience, and at the same time, can reduce the complexity of installation and maintenance and has strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic block diagram of the UFO power supply circuit of the present utility model;

[0018] Figure 2 is a schematic block diagram of the emergency power supply circuit of the present utility model;

[0019] Figure 3 is a circuit diagram of the UFO power supply circuit of the present utility model;

[0020] Figure 4 The circuit diagram of the emergency power supply circuit of the present utility model;

[0021] Figure 5 In the UFO power supply circuit of the present utility model, it is the circuit amplification schematic diagram of the EMC electromagnetic interference lightning protection module;

[0022] Figure 6 In the UFO power supply circuit of the present utility model, it is the circuit amplification schematic diagram of the pre-stage boost module;

[0023] Figure 7 In the UFO power supply circuit of the present utility model, it is the circuit amplification schematic diagram of the second-stage buck module;

[0024] Figure 8 In the UFO power supply circuit of the present utility model, it is the circuit amplification schematic diagram of the dimming module;

[0025] Figure 9 In the UFO power supply circuit of the present utility model, it is the circuit amplification schematic diagram of the auxiliary power supply module;

[0026] Figure 10 In the UFO power supply circuit of the present utility model, it is the circuit amplification schematic diagram of the power and color temperature adjustment module;

[0027] Figure 11 In the emergency power supply circuit of the present utility model, it is the circuit amplification schematic diagram of the first boost module;

[0028] Figure 12 In the emergency power supply circuit of the present utility model, it is the circuit amplification schematic diagram of the current and voltage detection module;

[0029] Figure 13 In the emergency power supply circuit of the present utility model, it is the circuit amplification schematic diagram of the emergency main control module;

[0030] Figure 14 In the emergency power supply circuit of the present utility model, it is the circuit amplification schematic diagram of the emergency power supply module;

[0031] Figure 15 The structural schematic diagram of the emergency power supply of the present utility model;

[0032] Figure 16 The explosion diagram of the emergency power supply of the present utility model;

[0033] Figure 17 It is Figure 16 The partial enlarged schematic diagram at position A;

[0034] Among them, the description of the attached drawing reference numerals:

[0035] 1. Power supply housing; 2. Power supply cover plate; 3. Second partition; 4. Bluetooth PCB board; 5. Switch PCB board; 6. Dust cover; 7. Infrared receiver; 8. Indicator button; 9. Second waterproof pad; 11. First partition; 12. First fixing post; 13. Main control PCB board; 14. Battery; 15. Bluetooth antenna; 16. Second fixing post; 17. First waterproof pad; 18. First extension part; 19. Fixing table; 10. Second through hole; 51. DIP switch; 101. Third partition; 102. First connecting plate; 103. Limit block; 201. First boost module; 202. Current and voltage detection module; 203. Emergency main control module; 204. Wireless Bluetooth module; 205. External interface module; 206. Emergency power supply module; 301. EMC electromagnetic interference and lightning protection module; 302. Front-stage boost module; 303. Second-stage buck module; 304. Dimming module; 305. Auxiliary power supply module; 306. Power and color temperature adjustment module. Detailed implementation manners

[0036] The present utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] Referring to Figures 1 to 17 As shown, the present utility model provides a power supply circuit for a UFO lamp, including a UFO power supply circuit and an emergency power supply circuit. In one embodiment, the emergency power supply circuit includes a first boost module 201, a current and voltage detection module 202, an emergency main control module 203, a wireless Bluetooth module 204, an external interface module 205, and an emergency power supply module 206; the emergency power supply module 206 is respectively connected to the first boost module 201, the current and voltage detection module 202, the emergency main control module 203, and the wireless Bluetooth module 204; the emergency main control module 203 is respectively connected to the current and voltage detection module 202 and the first boost module 201, and the current and voltage detection module 202 is also connected to the first boost module 201; the wireless Bluetooth module 204 is connected to the emergency main control module 203, and the wireless Bluetooth module 204 is also used to access a Bluetooth antenna; the external interface module 205 is connected to the emergency main control module 203, and the external interface module 205 is also used to access a microwave sensor or an infrared sensor; the first boost module 201 is also used to be connected to the LED lamp board of the UFO lamp.

[0038] In this embodiment, the emergency power supply module 206 includes a battery charging unit composed of diode D20, MOS transistor Q10, resistor R102, resistor R103, MOS transistor Q11, resistor R104, resistor R105, and fuse F2, and a battery and mains detection unit composed of resistor R121, resistor R122, MOS transistor Q13, resistor R128, resistor R129, capacitor C41, MOS transistor Q14, resistor R123, resistor R124, capacitor C42, diode D25, diode D26, resistor R126, resistor R127, capacitor C43, and diode ZD2.

[0039] Refer to Figure 14 As shown, the battery charging principle is as follows: The 16th pin of chip U4 outputs a high voltage to the D pole of MOS transistor Q11. When the voltage between the D pole and S pole of MOS transistor Q11 reaches the turn-on voltage, MOS transistor Q11 conducts; since the auxiliary power supply provides a charging voltage through diode D20 to the S pole of MOS transistor Q10, and MOS transistor Q11 conducts, MOS transistor Q10 conducts, and the auxiliary power supply provides voltage to charge the battery.

[0040] The battery detection working principle is as follows: During battery charging, this charging voltage also flows into the 18th pin of chip U4 through MOS transistor Q13 and resistor R128 and changes with the battery voltage; when the battery is fully charged and the voltage of this control pin reaches the set value inside the chip at its highest, the 16th pin of chip U4 outputs a low voltage, turning off MOS transistor Q11, and MOS transistor Q10 is cut off, and the auxiliary power supply stops charging the battery.

[0041] The mains detection working principle is as follows: The mains is output in two paths through diode D15. One path goes through resistor R125, diode D25, and resistor R124 to the D pole of MOS transistor Q14. When the voltage between the D pole and S pole reaches the turn-on voltage, MOS transistor Q14 conducts, and MOS transistor Q13 conducts; the other path of voltage goes through resistor R126 to the 15th pin of chip U4. Since the 15th pin is the mains detection pin, when the voltage is high, the chip internally defines it as the mains mode; when the voltage is low, the chip internally defines it as the no-mains mode; when there is mains power, it goes through resistor R126 to the 15th pin of chip U4, and at this time the voltage is high; when the mains voltage is disconnected, the 15th pin of chip U4 is low, and at this time the 17th pin of chip U4 outputs a high voltage, turning on MOS transistor Q14 through diode D26, MOS transistor Q13 conducts, the battery supplies power, and the emergency function is turned on simultaneously.

[0042] In one embodiment, the current and voltage detection module 202 includes a voltage detection unit composed of diode D24, resistor R134, amplifier U5, capacitor C45, capacitor C44, resistor R132, resistor R131, resistor R130, and capacitor C60, and a current detection unit composed of resistor R159, capacitor C57, amplifier U6, resistor R162, resistor R161, resistor R160, capacitor C58, and capacitor C59.

[0043] Referring to Figure 11 As shown, a tiny voltage is generated at the 4th pin FB of chip U11 and passes through resistor R192. It is amplified by resistor R159 and amplifier U6 and reaches the 13th pin of chip U4. This voltage is compared inside the chip to output a corresponding PWM signal. When the battery voltage is high, the output PWM signal is low; when the battery voltage is low, the output PWM signal is high. The processed PWM signal is output from the 2nd pin of chip U4, amplified by amplifier U5, connected to the output load to form a loop, adjusting the output voltage and current to ensure a constant output power.

[0044] In one embodiment, there are two sets of the first boost module 201. The first boost module 201 includes chip U10, chip U11, and a boost unit composed of MOS transistor Q20 and inductor T3.

[0045] As Figure 11 shown, in this embodiment, the two sets of the first boost module 201 have the same circuit function. One set can be composed of U9, MOS transistors Q17, Q18, and inductor T4, and the other set can be composed of U10, U11, and inductor T3. When there is a power outage, the battery supplies power to chips U10 and U11. The 3rd pin of chip U4 outputs a high level, and the 5th pin of U11 outputs a high level to the 3rd pin of U10. At the same time, the 5th pin of U10 outputs a high level and MOS transistor Q20 conducts. When MOS transistor Q20 conducts, the voltage of the inductor T3 coil forms a loop through the MOS transistor. Using the principle of electromagnetic induction, when there is a voltage in the primary coil of the inductor, an alternating magnetic flux is generated in the magnetic core, and a voltage and current are induced in the secondary coil. This voltage is rectified by diode D43 and then filtered by EC20 to obtain the voltage required for the LED lamp.

[0046] In one embodiment, the emergency main control module 203 includes a main control chip U4; the second pin of the main control chip U4 is used for PWM output to control the emergency voltage and current; the third pin of the main control chip U4 is used to connect to the emergency switch; the fourth and fifth pins of the main control chip U4 are used to connect to the LED indicator light and manual test; the tenth and eleventh pins of the main control chip U4 are respectively used for data sending and receiving of the wireless Bluetooth module 204; the nineteenth pin of the main control chip U4 is used to connect to the input port of the external microwave sensor or infrared sensor to receive the signal of the sensor; the twentieth pin of the main control chip U4 is used to connect to the control output port of the external microwave sensor or infrared sensor to control the sensor; the twenty-third pin of the main control chip U4 is the Bluetooth color temperature output A port, which is used to control the color temperature adjustment of the lamp through Bluetooth; the twenty-fourth pin of the main control chip U4 is the Bluetooth color temperature output B port, which is used to assist the Bluetooth color temperature adjustment function.

[0047] The U4 chip is the core control unit in the emergency circuit. In this embodiment, its respective control pins have the following functions:

[0048] Pin 1 of the chip: It is an empty pin and does not perform a specific function;

[0049] Pin 2 of the chip: PWM output, which is used to control the voltage and current of the emergency power supply;

[0050] Pin 3 of the chip: Emergency switch, which triggers the emergency mode when a power outage occurs;

[0051] Pin 4 of the chip: Emergency manual switch, which allows manual activation of the emergency mode;

[0052] Pin 5 of the chip: Emergency LED indicator light, which shows the status of the emergency mode;

[0053] Pin 6 of the chip: Infrared remote control, which provides an external remote control function;

[0054] Pin 7 of the chip: Ground wire, which provides grounding for the circuit;

[0055] Pin 8 of the chip: Emergency and mains lamp board switch, which controls the switching between the emergency mode and the mains mode;

[0056] Pin 9 of the chip: 5V power supply, which provides a stable power supply for the chip;

[0057] Pin 10 of the chip: Bluetooth TX (transmission), which is the transmission end for wireless Bluetooth communication;

[0058] Pin 11 of the chip: Bluetooth RX (reception), which is the reception end for wireless Bluetooth communication;

[0059] Pin 12 of the chip: Wall switch detection, which is used to detect the status of the wall switch;

[0060] Pin 13 of the chip: Emergency current detection, monitoring the current of the emergency power supply;

[0061] Pin 14 of the chip: Battery presence detection, confirming whether the battery is installed in place;

[0062] Pin 15 of the chip: Mains power detection, monitoring whether the mains power is normal;

[0063] Pin 16 of the chip: Charging detection, monitoring the charging status of the battery;

[0064] Pin 17 of the chip: No mains power detection, judging whether it is in a power outage state;

[0065] Pin 18 of the chip: Battery voltage detection, protecting the battery from overcharging or over-discharging;

[0066] Pin 19 of the chip: External microwave sensor / infrared sensor input port, receiving the signals from the sensor;

[0067] Pin 20 of the chip: External microwave sensor / infrared sensor control output port, sending control signals to the sensor;

[0068] Pin 21 of the chip: Emergency voltage detection, ensuring the stability of the emergency power supply voltage;

[0069] Pin 22 of the chip: Programming port, used for firmware programming or updating of the chip;

[0070] Pin 23 of the chip: Bluetooth color temperature output port A, controlling the color temperature through Bluetooth;

[0071] Pin 24 of the chip: Bluetooth color temperature output port B, assisting in color temperature control;

[0072] Through these control pins, the U4 chip can achieve comprehensive monitoring and control of the emergency power supply, ensuring that the power supply can operate stably under various conditions.

[0073] In one embodiment, the wireless Bluetooth module 204 includes a Bluetooth module board, and the Bluetooth module board is connected to the interface circuit of the U4 chip, such as Figure 4 the CON1 in it is externally connected to the Bluetooth module board. When working, the 12V power supply is regulated by U8 to output 3.3V to supply power to the Bluetooth module board. When the Bluetooth module board is powered normally and receives external signals, the internal processing of the module board is transmitted to pin 11 of the U4 chip. The chip analyzes and processes the received signals, and then outputs different signals from different ports to achieve functions such as product dimming, color adjustment, and automatic switching.

[0074] In one embodiment, the external interface module 205 includes a 0 - 10V interface circuit, such as Figure 4As shown, a 12V power supply powers an external microwave sensor and an infrared sensor. After the sensors work normally, the DIM terminal outputs high and low voltages or a PWM signal. Through the 0-10V dimming and shutdown circuit composed of UFO power supplies U3 and U7, functions such as product dimming, color adjustment, and automatic switching are realized.

[0075] In one embodiment, the UFO power supply circuit includes an EMC electromagnetic interference and lightning protection module 301, a pre-stage boost module 302, a second-stage buck module 303, an auxiliary power supply module 305, a dimming module 304, and a power and color temperature adjustment module 306. The EMC electromagnetic interference and lightning protection module 301 is respectively connected to the pre-stage boost module 302 and the auxiliary power supply module 305, and the auxiliary power supply module 305 is also connected to the pre-stage boost module 302. The pre-stage boost module 302 and the auxiliary power supply module 305 are both connected to the second-stage buck module 303. The dimming module 304 is respectively connected to the auxiliary power supply module 305 and the second-stage buck module 303. The second-stage buck module 303 is also connected to the power and color temperature adjustment module 306, and the power and color temperature adjustment module 306 is also used to connect to the LED light board of the UFO lamp.

[0076] In this embodiment, referring to Figure 5 As shown, the EMC electromagnetic interference and lightning protection module 301 includes a lightning protection unit composed of M1, M2, M3, GT2, resistor R410, resistor R430, resistor R440, and resistor NTC2. When hundreds of volts or thousands of volts of high voltage are generated instantaneously outdoors or by other electrical appliances, and these high voltages are transmitted to the L and N lines of the UFO power supply through wires, the lightning protection module will short-circuit the high voltage to the ground to ensure that the UFO power supply is not damaged by the high voltage. At the same time, the EMC electromagnetic interference and lightning protection module 301 also includes a conduction module composed of CX1, LF3, CX2, LF2, CY1, and CY2, which will reduce the mutual transmission and interference of electromagnetic signals and enable the power supply to be used normally.

[0077] Referring to Figure 6 As shown, the pre-stage boost module 302 includes a pre-stage boost unit composed of U2 and its peripheral circuit, a transformer, MOS transistor Q1, and Q1A. The auxiliary power supply provides DC voltage to the VDD port of U2. When the voltage reaches the chip startup threshold, the internal control circuit of the chip starts to work, and U2 outputs a drive signal to drive MOS transistors Q1 and Q1A to conduct. When the MOS transistors conduct, the primary coil of the transformer T1 is energized, and the voltage forms a loop through the MOS transistors. Using the principle of electromagnetic induction, when there is voltage in the primary coil of the transformer, an alternating magnetic flux is generated in the magnetic core, and a voltage and current are induced in the secondary coil. Due to the continuous switching inside U2, the drive signal of the MOS transistors continuously follows the high and low changes, and the MOS transistors repeatedly conduct and cut off, and the transformer continuously induces voltage and current. This voltage and current are filtered by electrolytic capacitors and become the required high current and high voltage.

[0078] Since the actual output voltage of the UFO power supply is a low voltage, the high voltage output by the previous stage needs to be reduced. Refer to Figure 7 As shown, the second-stage step-down module 303 includes a step-down unit composed of U1 and its peripheral circuit, MOS transistor Q2, and transformer T2. When the auxiliary power supply provides DC voltage to the VDD port of U1 and reaches the VCC startup voltage, at the same time, the resistors R38, R39, R40, R55, and R37 form a voltage-dividing circuit to provide voltage to the CTRL pin of U1. When CTRL is greater than the turn-on voltage and lasts for 2.2 ms, the chip starts to work. The DR pin of U1 outputs a drive signal through the resistor R73, resistor R14, and diode D7 to turn on the MOS transistor Q2. The MOS transistor Q2 conducts, and the voltage of the primary coil of the transformer T2 forms a loop through the MOS transistor. According to the principle of electromagnetic induction, when there is voltage in the primary coil of the transformer, the magnetic core generates an alternating magnetic flux, and the magnetic flux induces voltage and current in the secondary coil; because U1 continuously switches inside, the drive signal continuously follows the high and low changes, the MOS transistor repeatedly conducts and cuts off, and the transformer continuously induces voltage and current. This voltage and current are filtered by electrolytic capacitors to become the current and voltage required for the output of the UFO power supply.

[0079] In addition, as Figure 8 shown, the dimming module 304 includes a dimming turn-off circuit composed of U3 and its peripheral circuit, and a 0-10V dimming circuit composed of U7 and its peripheral circuit; when the voltage of U3 reaches the IC operating voltage, at the same time, a high voltage is input to the 3rd pin of U3. According to the principle of the in-phase amplifier, the 1st pin of U3 outputs a high voltage at the same time. The high voltage output by the 1st pin of U3 reaches the 5th pin of U3, the input terminal of the second amplifier, through the resistor R48. The 7th pin of U3, the output terminal of the second amplifier, outputs a high voltage at the same time to turn on the MOS transistor Q5. The auxiliary power supply voltage supplies power to the circuits in need through the MOS transistor Q5 to turn on the UFO power supply; on the contrary, when a low voltage is input to the 3rd pin of U3, according to the principle of the in-phase amplifier, the 1st pin of U3 outputs a low voltage at the same time. There is no voltage reaching the 5th pin of U3, the input terminal of the second amplifier. The 7th pin of U3, the output terminal of the second amplifier, also has no voltage output. The MOS transistor Q5 cuts off, and the auxiliary power supply voltage cannot supply power, turning off the UFO power supply.

[0080] When the voltage is increased to U7's operating voltage, and at the same time DIM+ and DIM- are connected to a 10V DC voltage. The 10V voltage is regulated by Z10, and then filtered by C27, L4, L5, and LF4 to form a stable voltage to the 5th pin of U7, which is the input terminal of the dimming signal. If the input 10V voltage remains unchanged, U7 outputs the maximum signal. The voltage transmitted to the PWM port of U1 through the optocoupler PC1 is the maximum, so the power output of the power supply is the maximum. If the externally connected input voltage varies between 0 - 10V, the voltage at the 5th pin input terminal of U7 varies between 0 - 10V. At the same time, the 6th pin of U5 outputs different duty cycles, which are transmitted to the 1st pin PWM port of U1 through the optocoupler PC1, and the power output of the power supply changes with the PWM signal.

[0081] In addition, as shown in Figure 9 The auxiliary power supply module 305 includes an auxiliary power supply unit composed of U4 and its peripheral circuit, transformer T4, and MOS transistor Q3. During operation, the rectified and filtered DC voltage reaches the VDD port of U4. When the voltage reaches the chip startup threshold, the internal control circuit of the chip starts to work, and the drive signal output from the 2nd pin of the chip drives the MOS transistor Q3 to conduct; when the MOS transistor Q3 conducts, the voltage of the primary coil of the transformer T4 forms a loop through the MOS transistor Q3. Using the principle of electromagnetic induction, when there is voltage in the primary coil of the transformer, the magnetic core generates an alternating magnetic flux, and the magnetic flux induces voltage and current in the secondary coil and the auxiliary coil; the internal of U4 continuously switches and changes, the drive signal of the 2nd pin of U4 follows the high and low changes, the MOS transistor Q3 repeats conduction and cut-off, and the transformer continuously induces voltage and current. This voltage and current are rectified and filtered to obtain the required battery charging voltage and the power supply voltage for other circuits.

[0082] At the same time, the power and color temperature adjustment module 306 adopts the method of adjustment by DIP switches. For example, Figure 10 the DIP switch SW1 in it can achieve different color temperature changes, and the DIP switch SW2 can achieve different power changes.

[0083] In summary, for the use of the UFO power supply, after the mains power is connected to the L and N lines, the UFO power supply works, and the output line outputs DC voltage to light up the LED lamp; at the same time, the internal auxiliary power supply provides voltage for the battery, and the DIP switch SW1 adjusts the color temperature conversion of the lamp beads, and the DIP switch SW2 adjusts the power size, and the function changes are realized by manually operating the DIP switch; when the power outage occurs, the UFO power supply does not work, the output line has no voltage output and the lamp goes out; the internal emergency power supply starts immediately, and the internal battery outputs the required DC voltage for the lamp beads through boosting to light up the LED lamp.

[0084] When there is mains power, the UFO power supply works, and the mains power provides voltage for the wireless Bluetooth module 204. Through Bluetooth, the APP on the mobile phone terminal can automatically change the power supply dimming and color adjustment, time setting, power size conversion, switch function, etc.; when there is no mains power, the battery provides voltage for the wireless Bluetooth module 204, and at the same time completes the functions required for emergency.

[0085] In addition, when there is mains power, the auxiliary power supply supplies power to the external microwave sensor or infrared sensor through the 0-10V dimming port, and through a terminal that supports the operation of the sensor, such as a remote control, etc., the power supply is dimmed, color adjusted, time set, power converted, automatically switched, etc.; when there is no mains power, the battery provides voltage to the 0-10V port and simultaneously completes the functions required for emergency.

[0086] In addition, in one embodiment, referring to Figures 15 to 17 as shown, there is also provided an emergency power supply for a UFO lamp, adopting the above-mentioned emergency power supply circuit, including

[0087] a power supply housing 1, the power supply housing 1 is of a cylindrical structure, and the power supply housing 1 is also provided with a first cavity having an opening at its bottom; in the middle of the first cavity, four first partitions 11 that are connected end to end are further installed, and the four first partitions 11 enclose a first installation cavity for installing a main control PCB board 13; at the connection between each adjacent two of the first partitions 11, a first fixing column 12 is also connected, and the top of the first fixing column 12 is provided with a first locking hole that penetrates through to its bottom; a battery 14 connected to the main control PCB board 13 is also installed in the first cavity, and a Bluetooth antenna 15 connected to the main control PCB board 13 is installed on the outer wall of the power supply housing 1;

[0088] a power supply cover plate 2, the power supply cover plate 2 is connected to the bottom opening of the power supply housing 1 and seals the first cavity; a first through hole is opened at the bottom of the power supply cover plate 2 corresponding to the first locking hole, and a second through hole 10 is also opened at the top of the power supply housing 1 corresponding to the first locking hole.

[0089] When installing this power supply, it can be directly arranged on the top of the existing UFO lamp, aligning the first through hole with the screw holes reserved on the lamp. Subsequently, insert a screw into the second through hole 10, and the screw will sequentially pass through the first locking hole of the first fixing column 12 and the first through hole of the power supply cover plate 2, and then be locked into the screw hole to complete the assembly. The assembly is convenient, fast, and easy for later disassembly and maintenance. In this embodiment, the power supply housing 1 is in a cylindrical structure matching the circular UFO lamp. At the same time, a wiring hole is provided at the top of the power supply housing 1 for connecting the cable of the mains electricity. The main control PCB board 13 is installed in the first installation cavity surrounded by four first partition plates 11, which can isolate the main control PCB board 13 from other components inside the power supply, prevent electromagnetic interference, and avoid damage to the main control PCB board 13 caused by power supply failures, improving its safety in use. In addition, a second partition plate 3 is connected to the outer wall of each of two adjacent first fixing columns 12; a second installation cavity is formed between the two second partition plates 3, and a Bluetooth PCB board 4 connected to the Bluetooth antenna 15 and the main control PCB board 13 is also installed in the second installation cavity. The Bluetooth antenna 15 is provided to receive Bluetooth signals, and thus, it can be remotely controlled through a device supporting Bluetooth functions (such as a mobile phone, etc.), improving the convenience of product use.

[0090] At the same time, a second fixing column 16 is connected to the outer wall of the first fixing column 12, and a second locking hole is provided at the bottom of the second fixing column 16; a first waterproof pad 17 is also connected to the bottom of the first fixing column 12, and a first extension 18 extends outward from the outer wall of the first waterproof pad 17; the first extension 18 is arranged at the bottom of the second fixing column 16, and a third through hole is provided at the position corresponding to the second locking hole on the first extension 18. A screw can be inserted into the third through hole and locked into the second locking hole, thereby locking and fixing the first waterproof pad 17. Through the first waterproof pad 17, water ingress into the power supply can be avoided, affecting its service life.

[0091] The inner wall of the first cavity is also connected with two third partitions 101 which are arranged at intervals, and a first connecting plate 102 is also connected between one ends of the two third partitions 101; a third installation cavity is formed between the two third partitions 101 and the first connecting plate 102, and a switch PCB board 5 connected to the main control PCB board 13 is also installed in the third installation cavity; a DIP switch 51 is also installed on the switch PCB board 5; a debugging hole is also opened at the position corresponding to the DIP switch 51 on the outer wall of the power supply housing 1, and a dust-proof cover 6 is also installed in the debugging hole. The DIP switch 51 is provided to realize functions such as power adjustment and color temperature adjustment to adapt to different usage environments. At the same time, the dust-proof cover 6 is also provided. When the DIP switch 51 is not in use, dust can be prevented from entering the power supply through the dust-proof cover 6. At the same time, a limiting block 103 is connected to each of the opposite sides of the two third partitions 101, and a limiting groove is opened vertically on one side of each limiting block 103; both ends of the switch PCB board 5 are respectively clamped in a limiting groove. Clamping both ends of the switch PCB board 5 in a limiting groove can ensure the stability of its installation.

[0092] In addition, an infrared receiver 7 and an indicator light button 8 both connected to the main control PCB board 13 are also installed on the outer wall of the power supply housing 1. The infrared receiver 7 can receive infrared signals and can be remotely controlled to work through a remote controller with infrared function. At the same time, the indicator light button 8 is provided to display the working state of the power supply to the outside. Multiple control methods such as Bluetooth and infrared are provided, and users can choose according to their usage needs, which can improve the versatility of product use.

[0093] At the same time, to further improve the waterproof performance, a second waterproof pad 9 is also connected to the opening at the bottom of the first cavity. In addition, a fixing platform 19 extends upward in the middle of the top of the power supply housing 1, and a first fixing hole is opened on the fixing platform 19, and a wire passing hole is also opened on the power supply cover 2. The first fixing hole is used to install a hook to facilitate hoisting the assembled lamp to the outside. At the same time, a wire passing hole is also opened on the power supply cover 2, and the cable of the power supply can pass through the wire passing hole to be wired to components such as the lamp board in the lamp.

[0094] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A power supply circuit for a UFO lamp, comprising a UFO power supply circuit and an emergency power supply circuit, characterized in that: The emergency power supply circuit includes a first boost module, a current and voltage detection module, an emergency main control module, a wireless Bluetooth module, an external interface module, and an emergency power supply module; the emergency power supply module is respectively connected to the first boost module, the current and voltage detection module, the emergency main control module, and the wireless Bluetooth module; the emergency main control module is respectively connected to the current and voltage detection module and the first boost module, and the current and voltage detection module is also connected to the first boost module; the wireless Bluetooth module is connected to the emergency main control module, and the wireless Bluetooth module is also used to access the Bluetooth antenna; the external interface module is connected to the emergency main control module, and the external interface module is also used to access a microwave sensor or an infrared sensor; the first boost module is also used to connect to the LED light board of the UFO lamp.

2. The power supply circuit of the UFO lamp according to claim 1, characterized in that: The emergency power supply module includes a battery charging unit composed of a diode D20, a MOS tube Q10, a resistor R102, a resistor R103, a MOS tube Q11, a resistor R104, a resistor R105, and a fuse F2, and a battery and AC power detection unit composed of a resistor R121, a resistor R122, a MOS tube Q13, a resistor R128, a resistor R129, a capacitor C41, a MOS tube Q14, a resistor R123, a resistor R124, a capacitor C42, a diode D25, a diode D26, a resistor R126, a resistor R127, a capacitor C43 and a diode ZD2.

3. The power supply circuit of the UFO lamp according to claim 2, characterized in that: The current and voltage detection module includes a voltage detection unit composed of a diode D24, a resistor R134, an amplifier U5, a capacitor C45, a capacitor C44, a resistor R132, a resistor R131, a resistor R130, and a capacitor C60, and a current detection unit composed of a resistor R159, a capacitor C57, an amplifier U6, a resistor R162, a resistor R161, a resistor R160, a capacitor C58, and a capacitor C59.

4. The power supply circuit of the UFO lamp according to claim 3, characterized in that: The first boost module is provided with two groups; the first boost module includes a chip U10, a chip U11 and a boost unit composed of a MOS tube Q20 and an inductor T3.

5. The power supply circuit of the UFO lamp according to claim 4, characterized in that: The emergency main control module includes a main control chip U4; the second pin of the main control chip U4 is used for PWM output to control the emergency voltage and current; the third pin of the main control chip U4 is used to connect the emergency switch; the fourth and fifth pins of the main control chip U4 are used to connect the LED indicator light and manual test; the tenth and eleventh pins of the main control chip U4 are respectively used for sending and receiving data of the wireless Bluetooth module; the nineteenth pin of the main control chip U4 is used for an external microwave sensor or infrared sensor input port to receive the sensor signal; the 20th pin of the main control chip U4 is used for an external microwave sensor or infrared sensor control output port to control the sensor; the 23rd pin of the main control chip U4 is a Bluetooth color temperature adjustment output port A, which is used to control the color temperature adjustment of the lamp through Bluetooth; the 24th pin of the main control chip U4 is a Bluetooth color temperature adjustment output port B, which is used to assist the Bluetooth color temperature adjustment function.

6. The power supply circuit of the UFO lamp according to claim 1, characterized in that: The UFO power supply circuit includes an EMC electromagnetic interference and lightning protection module, a front-stage boost module, a second-stage buck module, an auxiliary power supply module, a dimming module, and a power and color temperature adjustment module; the EMC electromagnetic interference and lightning protection module is respectively connected to the front-stage boost module and the auxiliary power supply module, and the auxiliary power supply module is also connected to the front-stage boost module; the front-stage boost module and the auxiliary power supply module are also both connected to the second-stage buck module, and the dimming module is respectively connected to the auxiliary power supply module and the second-stage buck module; the second-stage buck module is also connected to the power and color temperature adjustment module, and the power and color temperature adjustment module is also used to connect to the LED light board of the UFO lamp.

7. An emergency power supply for a UFO lamp, using the emergency power supply circuit according to any one of claims 1 to 6, characterized in that: It includes a power supply shell and a power supply cover; the power supply shell is of a cylindrical structure, and is provided with a first cavity with an opening at the bottom; four first partitions connected to each other end to end are installed in the middle of the first cavity, and the four first partitions form a first installation cavity for installing a main control PCB board; a first fixing column is connected to the connection between each two adjacent first partitions, and a first locking hole is provided on the top of the first fixing column that passes through to the bottom; a battery connected to the main control PCB board is also installed in the first cavity, and a Bluetooth antenna connected to the main control PCB board is also installed on the outer wall of the power supply shell; the power supply cover is connected to the bottom opening of the power supply shell and seals the first cavity; a first through hole is provided at the bottom of the power supply cover corresponding to the first locking hole, and a second through hole is provided at the top of the power supply shell corresponding to the first locking hole.

8. The emergency power supply of the UFO lamp according to claim 7, characterized in that: The inner wall of the first cavity is also connected to two third partitions, which are arranged at intervals, and a first connecting plate is also connected between one ends of the two third partitions; a third installation cavity is enclosed between the two third partitions and the first connecting plate, and a switch PCB board connected to the main control PCB board is also installed in the third installation cavity; a dip switch is also installed on the switch PCB board; a debugging hole is also opened on the outer wall of the power supply housing corresponding to the dip switch, and a dust cover is also installed in the debugging hole.

9. The emergency power supply of the UFO lamp according to claim 8, characterized in that: An infrared receiver connected to the main control PCB board is also installed on the outer wall of the power supply housing.

10. The emergency power supply of the UFO lamp according to claim 9, characterized in that: The outer wall of the power supply housing is also provided with an indicator light button connected to the main control PCB board.

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