Emergency lamp control circuit

Abstract

The utility model provides an emergency lamp control circuit, which belongs to the technical field of electronic circuits and comprises a mains supply interface, an alternating-current to direct-current circuit, a battery power supply circuit, a voltage stabilizer module, a dual-PWM (pulse-width modulation) master control circuit, an inversion booster circuit, a switching control circuit and an emergency lamp interface. The AC-to-DC circuit is electrically connected with the battery power supply circuit; the voltage stabilizer module is electrically connected with the battery power supply circuit; the dual-PWM main control circuit is electrically connected with the voltage stabilizer module; the inverter booster circuit is electrically connected with the dual-PWM main control circuit and the voltage stabilizer module; the switching control circuit is electrically connected with the battery power supply circuit, the output end of the inverter booster circuit and the mains supply interface respectively; and the emergency lamp interface is electrically connected with the switching control circuit, so that the emergency lamp can be continuously switched to the standby power supply for power supply after the mains supply is cut off, the stable work of the emergency lamp is maintained, and the travel experience feeling of personnel is improved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic circuits, and in particular to an emergency light control circuit. Background Art

[0002] At present, the power supply system often encounters emergencies such as power outages, voltage fluctuations or power failures, which will affect the normal power supply, especially in places that require continuous lighting, such as hospitals, underground passages, shopping malls and other public places, as well as daily environments such as homes and offices. The dark environment can easily cause panic among people and greatly affect people's travel experience.

[0003] Therefore, it is urgent to design an emergency light circuit that can maintain stable operation and continuously switch to a backup power supply after a city power outage. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide an emergency light control circuit that can continuously switch to a backup power supply after a city power outage, thereby maintaining stable operation of the emergency light and improving people's travel experience.

[0005] To achieve the above-mentioned purpose, the embodiment of the present application proposes an emergency light control circuit, including: a mains power supply interface, an AC to DC circuit, a battery power supply circuit, a voltage regulator module, a dual PWM main control circuit, an inverter boost circuit, a switching control circuit, and an emergency light interface;

[0006] The AC-to-DC circuit includes a rectifier module and a transformer module, the input end of the rectifier module is electrically connected to the mains power interface, and the output end of the rectifier module is electrically connected to the input end of the transformer module;

[0007] The battery power supply circuit is electrically connected to the output end of the voltage conversion module;

[0008] The voltage regulator module is electrically connected to the battery power supply circuit;

[0009] The dual PWM main control circuit is electrically connected to the voltage stabilizer module;

[0010] The inverter boost circuit is electrically connected to the dual PWM main control circuit and the voltage stabilizer module;

[0011] The switching control circuit is electrically connected to the battery power supply circuit, the output end of the inverter boost circuit and the mains power supply interface respectively;

[0012] The emergency light interface is electrically connected to the switching control circuit.

[0013] An emergency light control circuit provided by the embodiment of the utility model has at least the following beneficial effects: when the mains power is normally supplied, the switching control circuit controls the output end of the mains power interface to be electrically connected to the emergency light interface, and the mains power directly supplies power to the emergency light. At the same time, the AC power output by the mains power interface is converted into a DC power supply by a rectifier module, and then the DC power supply is converted into a charging voltage required by a battery power supply circuit by a transformer module, so that the battery power supply circuit is always kept in a powered state before the mains power is cut off. In addition, the battery power supply circuit controls the voltage regulator module to stop working, thereby making the dual PWM main control circuit unable to work, further reducing The consumption of electric energy stored in the battery power supply circuit; when the mains power is cut off, the battery power supply circuit discharges, the switching control circuit controls the output end of the inverter boost circuit to be electrically connected to the emergency light interface, and the battery power supply circuit outputs current to the control regulator module to make the regulator module work, and then the DC power output by the regulator module is converted into AC power through the coordinated action of the dual PWM main control circuit and the inverter boost circuit, and the converted AC power is boosted to a working voltage suitable for the emergency light, so that the emergency light can continuously switch to the backup power supply to continue to supply power after the mains power is cut off, and maintain long-term stable operation, which greatly improves the user's travel experience.

[0014] In some embodiments, the rectifier module includes a first diode, a second diode, a third diode, and a fourth diode, the positive electrode of the first diode is electrically connected to the negative electrode of the second diode and one end of the AC power interface, the negative electrode of the first diode is electrically connected to the negative electrode of the third diode, the positive electrode of the third diode is electrically connected to the negative electrode of the fourth diode and the other end of the AC power interface, and the positive electrode of the fourth diode is electrically connected to the positive electrode of the second diode.

[0015] In some embodiments, the voltage transformation module includes a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, a fifth diode, a sixth diode, a seventh diode, an eighth diode, a ninth diode, a tenth diode, an eleventh diode, a controllable voltage source, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, an eighth capacitor, a first photocoupler, a first triode, a first MOS tube, a first voltage regulator tube and a first transformer, wherein one end of the first coil of the first transformer is respectively connected to one end of the first capacitor. , one end of the second capacitor, one end of the third resistor, the anode of the fifth diode, one end of the first resistor and the output end of the rectifier module are electrically connected, the other end of the first coil of the first transformer is respectively electrically connected to the anode of the sixth diode and the drain of the first MOS tube, the cathode of the sixth diode is respectively electrically connected to the other end of the second capacitor, the other end of the third resistor and the cathode of the fifth diode, the other end of the first resistor is electrically connected to one end of the second resistor, one end of the second coil of the first transformer is respectively electrically connected to the anode of the ninth diode and one end of the third capacitor, the other end of the third capacitor is electrically connected to one end of the fourth resistor, and the other end of the fourth resistor is electrically connected to the cathode of the ninth diode and the cathode of the fifth diode. One end of the second resistor, one end of the fifth resistor, the cathode of the seventh diode and the cathode of the first voltage regulator are electrically connected, the gate of the first MOS tube is electrically connected to the other end of the fifth resistor, the anode of the seventh diode and the collector of the first transistor respectively, the source of the first MOS tube is electrically connected to one end of the sixth resistor, one end of the first resistor and one end of the eighth resistor respectively, the other end of the sixth resistor is electrically connected to the third pin of the first photocoupler, one end of the fourth capacitor and the base of the first transistor respectively, the anode of the first voltage regulator tube is electrically connected to the anode of the eighth diode, one end of the third coil of the first transformer is electrically connected to the cathode of the tenth diode respectively. The anode of the diode and the anode of the eleventh diode are electrically connected, one end of the sixth capacitor is electrically connected to the cathode of the tenth diode, the cathode of the eleventh diode, one end of the tenth resistor and one end of the thirteenth resistor, the first pin of the first photocoupler is electrically connected to the other end of the tenth resistor and one end of the eleventh resistor, the second pin of the first photocoupler is electrically connected to the other end of the eleventh resistor, one end of the twelfth resistor and the cathode of the controllable voltage-stabilized source, the fourth pin of the first photocoupler is electrically connected to one end of the fifth capacitor and the cathode of the ninth diode, and the other end of the twelfth resistor is electrically connected to one end of the seventh capacitor,The other end of the seventh capacitor is electrically connected to the other end of the thirteenth resistor, one end of the fourteenth resistor, one end of the fifteenth resistor and the reference end of the controllable voltage-stabilizing source, respectively; one end of the eighth capacitor is electrically connected to the other end of the fourteenth resistor, the other end of the fifteenth resistor and the anode of the controllable voltage-stabilizing source, respectively; the other end of the first capacitor, the cathode of the eighth diode, the emitter of the first transistor, the other end of the fourth capacitor, the other end of the seventh resistor, the other end of the eighth resistor, the other end of the ninth resistor, the other end of the fifth capacitor, the other end of the sixth capacitor, the other end of the eighth capacitor, the other end of the second coil of the first transformer and the other end of the third coil of the first transformer are all grounded.

[0016] In some embodiments, the battery power supply circuit includes a sixteenth resistor, a seventeenth resistor, an eighteenth resistor, a nineteenth resistor, a twentieth resistor, a twenty-first resistor, a twelfth diode, a thirteenth diode, a fourteenth diode, a fifteenth diode, a ninth capacitor, a tenth capacitor, an eleventh capacitor, a second transistor, a third transistor, a first fuse, a second fuse and a battery, the anode of the twelfth diode is respectively electrically connected to the anode of the thirteenth diode, the anode of the fourteenth diode and the output end of the transformer module, the cathode of the twelfth diode is respectively electrically connected to the cathode of the thirteenth diode, the positive electrode of the battery, one end of the ninth capacitor, one end of the tenth capacitor, one end of the sixteenth resistor and the emitter of the second transistor, the cathode of the fourteenth diode is electrically connected to one end of the twentieth resistor, and the other end of the sixteenth resistor is respectively electrically connected to the base of the second transistor and the base of the tenth transistor. One end of the seventeenth resistor is electrically connected, the other end of the seventeenth resistor is electrically connected to the collector of the third triode, the emitter of the second triode is respectively electrically connected to the input end of the regulator module and the positive electrode of the fifteenth diode, the negative electrode of the fifteenth diode is electrically connected to one end of the eighteenth resistor, the other end of the eighteenth resistor is electrically connected to one end of the nineteenth resistor, the base of the third triode is respectively electrically connected to the other end of the nineteenth resistor, one end of the twenty-first resistor, one end of the eleventh capacitor and the other end of the twentieth resistor, the negative electrode of the battery is respectively electrically connected to one end of the first fuse and one end of the second fuse, the emitter of the third triode, the other end of the twenty-first resistor, the other end of the eleventh capacitor, the other end of the first fuse, the other end of the second fuse, the other end of the ninth capacitor and the other end of the tenth capacitor are all grounded.

[0017] In some embodiments, the regulator module includes a twenty-second resistor, a three-terminal positive voltage regulator, and a twelfth capacitor, one end of the twenty-second resistor is electrically connected to the collector of the second transistor, the other end of the twenty-second resistor is electrically connected to the input end of the three-terminal positive voltage regulator, the output end of the three-terminal positive voltage regulator is respectively electrically connected to one end of the twelfth capacitor and the dual PWM main control circuit and the inverter boost circuit, and the ground end of the three-terminal positive voltage regulator and the other end of the twelfth capacitor are grounded.

[0018] In some embodiments, the dual PWM main control circuit includes a twenty-third resistor, a twenty-fourth resistor, a twenty-fifth resistor, a twenty-sixth resistor, a twenty-seventh resistor, a twenty-eighth resistor, a first sliding resistor, a second sliding resistor, a thirteenth capacitor, a fourteenth capacitor, a fifteenth capacitor, a sixteenth capacitor, a sixteenth diode and a PWM control chip, and the PWM control chip is electrically connected to one end of the twenty-seventh resistor, the positive electrode of the sixteenth diode, one end of the fourteenth capacitor, the twenty-sixth resistor, one end of the second sliding resistor, one end of the fifteenth capacitor, one end of the sixteenth capacitor, one end of the twenty-eighth resistor and one end of the twenty-fourth resistor, respectively. The other end of the twenty-seventh resistor is electrically connected to the other end of the sixteenth capacitor and the other end of the twenty-eighth resistor, the cathode of the sixteenth diode is electrically connected to one end of the twenty-fourth resistor and one end of the thirteenth capacitor, the other end of the twenty-fourth resistor is electrically connected to one end of the first sliding resistor, the other end of the first sliding resistor is electrically connected to one end of the twenty-third resistor, the other end of the second sliding resistor is electrically connected to one end of the twenty-fifth resistor, the other end of the twenty-third resistor, the other end of the thirteenth capacitor, the other end of the fourteenth capacitor, the other end of the twenty-fifth resistor and the other end of the fifteenth capacitor are all grounded.

[0019] In some embodiments, the inverter boost circuit includes a twenty-ninth resistor, a thirtieth resistor, a thirty-first resistor, a thirty-second resistor, a thirty-third resistor, a thirty-fourth resistor, a thirty-fifth resistor, a thirty-sixth resistor, a thirty-seventh resistor, a thirty-eighth resistor, a thirty-ninth resistor, a forty-first resistor, a forty-second resistor, a forty-third resistor, a seventeenth capacitor, an eighteenth capacitor, a nineteenth capacitor, a twentieth capacitor, a twenty-first capacitor, a fourth transistor, a fifth transistor, a second MOS transistor, a third MOS transistor, a fourth MOS transistor, a fifth MOS transistor, a seventeenth diode, an eighteenth diode, a nineteenth diode, a twentieth diode, a twenty-first diode, a twenty-second diode, a second a thirteenth diode, a twenty-fourth diode, a twenty-fifth diode, a twenty-sixth diode and a second transformer, one end of the first coil of the second transformer is respectively electrically connected to one end of the nineteenth capacitor, one end of the thirty-sixth resistor, the source of the fourth MOS tube, the anode of the twenty-second diode and the drain of the fifth MOS tube, the other end of the nineteenth capacitor is respectively electrically connected to the cathode of the twentieth diode, the other end of the thirty-sixth resistor and one end of the thirty-seventh resistor, the other end of the thirty-seventh resistor is respectively electrically connected to the gate of the fourth MOS tube, the collector of the fifth transistor and the cathode of the twenty-second diode, the base of the fifth transistor The gate of the fifth MOS tube is respectively electrically connected to one end of the thirty-ninth resistor, one end of the fortieth resistor and the anode of the twenty-first diode, the emitter of the fifth triode and the other end of the thirty-ninth resistor are both grounded, the other end of the first coil of the second transformer is respectively electrically connected to one end of the eighteenth capacitor, one end of the thirty-first resistor, the source of the second MOS tube, the anode of the nineteenth diode and the drain of the third MOS tube, the other end of the eighteenth capacitor is respectively electrically connected to the cathode of the seventeenth diode, the other end of the thirty-first resistor and one end of the thirty-second resistor, the third The other end of the twelfth resistor is electrically connected to the collector of the fourth transistor Q5, the cathode of the nineteenth diode and the gate of the second MOS transistor respectively, the base of the fourth transistor is electrically connected to one end of the thirty-third resistor, the gate of the third MOS transistor is electrically connected to one end of the thirtieth resistor, one end of the thirty-fifth resistor and the anode of the eighteenth diode respectively, the other end of the thirtieth resistor is electrically connected to one end of the seventeenth capacitor, the other end of the twenty-ninth resistor, the emitter of the fourth transistor and one end of the thirty-fourth resistor are all grounded, the anode of the seventeenth diode and the anode of the twentieth diode are both electrically connected to the output end of the regulator module,One end of the second coil of the second transformer is electrically connected to the anode of the 23rd diode, the cathode of the 24th diode and the switching control circuit respectively, the other end of the second coil of the second transformer is electrically connected to one end of the 41st resistor and the switching control circuit respectively, one end of the 20th capacitor is electrically connected to the cathode of the 23rd diode, the cathode of the 25th diode and one end of the 21st capacitor respectively, one end of the 42nd resistor is electrically connected to one end of the 43rd resistor, the other end of the 20th capacitor, the anode of the 24th diode, the anode of the 26th diode, the other end of the 21st capacitor and the other end of the 42nd resistor are all grounded, the other end of the 38th resistor, the other end of the 40th resistor, the cathode of the 21st diode and one end of the 29th resistor, the other end of the 17th capacitor, the other end of the 33rd resistor, the other end of the 34th resistor, the cathode of the 18th diode, the other end of the 35th resistor and the other end of the 43rd resistor are all electrically connected to the dual PWM main control circuit.

[0020] In some embodiments, the switching control circuit includes a twenty-seventh diode, a twenty-eighth diode, a twenty-ninth diode, a thirtieth diode, a thirty-first diode, a forty-fourth resistor, a forty-fifth resistor, a forty-sixth resistor, a forty-seventh resistor, a forty-eighth resistor, a forty-ninth resistor, a fiftieth resistor, a twenty-second capacitor, a twenty-third capacitor, a twenty-fourth capacitor, a twenty-fifth capacitor, a twenty-sixth capacitor, a twenty-seventh capacitor, a twenty-eighth capacitor, a third fuse, a fourth fuse, a second photocoupler, a second voltage regulator, a sixth transistor, a seventh transistor, an eighth transistor, a test switch, a first relay, and a second relay, and one end of the third fuse and one end of the fourth fuse are electrically connected to the AC power interface. The other end of the fourth fuse is respectively electrically connected to one end of the forty-fifth resistor, one end of the twenty-third capacitor and the rectifier module, the other end of the forty-fifth resistor is respectively electrically connected to the anode of the twenty-ninth diode and the cathode of the twenty-seventh diode, one end of the forty-sixth resistor is respectively electrically connected to one end of the twenty-fourth capacitor and the rectifier module, the other end of the forty-sixth resistor is respectively electrically connected to the cathode of the twenty-eighth diode and the anode of the thirtieth diode, one end of the twenty-second capacitor is respectively electrically connected to the anode of the twenty-seventh diode, the anode of the twenty-eighth diode, one end of the forty-fourth resistor and the anode of the second voltage regulator tube, and the twenty- The other end of the second capacitor is respectively electrically connected to the cathode of the twenty-ninth diode, the cathode of the thirtieth diode, the other end of the forty-fourth resistor, and one end of the forty-seventh resistor, the other end of the forty-seventh resistor is electrically connected to the first pin of the second photocoupler, the cathode of the second voltage regulator is electrically connected to the second pin of the second photocoupler, the third pin of the second photocoupler is electrically connected to one end of the forty-eighth resistor, the other end of the forty-eighth resistor is respectively electrically connected to one end of the test switch and the base of the sixth transistor, the collector of the sixth transistor is respectively electrically connected to one end of the forty-ninth resistor, one end of the twenty-seventh capacitor, and the base of the seventh transistor, The collector of the seventh transistor is electrically connected to one end of the fiftieth resistor, one end of the twenty-eighth capacitor and the base of the eighth transistor respectively; the first relay is electrically connected to one end of the mains power interface, one end of the emergency light interface, the first output end of the inverter boost circuit, the other end of the forty-ninth resistor, the fourth pin of the second photocoupler, the battery power supply circuit and the collector of the eighth transistor respectively; the second relay is electrically connected to the other end of the mains power interface, the other end of the emergency light interface, the second output end of the inverter boost circuit, the other end of the fiftieth resistor, one end of the twenty-fifth capacitor, the collector of the eighth transistor and the thirty-first diode respectively.The other end of the 23rd capacitor, the other end of the 24th capacitor, the other end of the test switch, the emitter of the sixth transistor, the other end of the 25th capacitor, the other end of the 27th capacitor, the emitter of the seventh transistor, the other end of the 28th capacitor and the emitter of the eighth transistor are all grounded.

[0021] In some embodiments, an indicator light circuit is also included, and the indicator light circuit is electrically connected to the output end of the transformer module and the output end of the battery power supply circuit respectively.

[0022] In some embodiments, the indicator light circuit includes a fifty-first resistor, a fifty-second resistor, a fifty-third resistor, a fifty-fourth resistor, a fifty-fifth resistor, a ninth transistor, a third voltage regulator, a fourth voltage regulator, a first light-emitting diode, a second light-emitting diode, a third light-emitting diode and a twenty-ninth capacitor, one end of the twenty-ninth capacitor is respectively electrically connected to one end of the fifty-first resistor, one end of the fifty-second resistor, one end of the fifty-third resistor, one end of the fifty-fifth resistor, the output end of the battery power supply circuit and the output end of the transformer module, the other end of the fifty-first resistor is electrically connected to the positive electrode of the first light-emitting diode, and the other end of the fifty-second resistor is electrically connected to the positive electrode of the first light-emitting diode. They are respectively electrically connected to the anode of the second light-emitting diode and the collector of the ninth transistor, the other end of the fifty-third resistor is electrically connected to the cathode of the third voltage-regulating diode, the anode of the third voltage-regulating diode is respectively electrically connected to one end of the fifty-fourth resistor and the base of the ninth transistor, the other end of the fifty-fifth resistor is electrically connected to the cathode of the fourth voltage-regulating diode, the anode of the fourth voltage-regulating diode is electrically connected to the anode of the third light-emitting diode, the other end of the twenty-ninth capacitor, the cathode of the first light-emitting diode, the cathode of the second light-emitting diode, the emitter of the ninth transistor, the other end of the fifty-fourth resistor and the cathode of the third light-emitting diode are all grounded. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the technical solution of the utility model and constitute a part of the specification. Together with the embodiments of the utility model, they are used to explain the technical solution of the utility model and do not constitute a limitation on the technical solution of the utility model.

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0025] Figure 1 This is a system architecture diagram of an emergency light control circuit provided by an embodiment of the utility model;

[0026] Figure 2 It is a schematic diagram of a switching control circuit provided by an embodiment of the utility model;

[0027] Figure 3 It is a schematic diagram of an AC to DC circuit provided by an embodiment of the utility model;

[0028] Figure 4 It is a schematic diagram of an indicator light circuit and a battery power supply circuit provided by an embodiment of the utility model;

[0029] Figure 5 It is a schematic diagram of a voltage stabilizer module and a dual PWM main control circuit provided by an embodiment of the utility model;

[0030] Figure 6 It is a schematic diagram of an inverter boost circuit provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0031] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0032] In the description of the utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0034] The embodiment of the utility model provides an emergency light control circuit, which can uninterruptedly switch to a backup power supply after a city power outage, maintain the stable operation of the emergency light, and improve the travel experience of people.

[0035] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings.

[0036] Reference Figure 1 The utility model provides an emergency light control circuit, including: a mains power supply interface 100, an AC to DC circuit 200, a battery power supply circuit 300, a voltage regulator module 400, a dual PWM main control circuit 500, an inverter boost circuit 600, a switching control circuit 700, and an emergency light interface 800;

[0037] The AC-to-DC circuit 200 includes a rectifier module 210 and a transformer module 220. The input end of the rectifier module 210 is electrically connected to the mains power interface 100, and the output end of the rectifier module 210 is electrically connected to the input end of the transformer module 220.

[0038] The battery power supply circuit 300 is electrically connected to the output end of the transformer module 220;

[0039] The voltage regulator module 400 is electrically connected to the battery power supply circuit 300;

[0040] The dual PWM main control circuit 500 is electrically connected to the voltage regulator module 400;

[0041] The inverter boost circuit 600 is electrically connected to the dual PWM main control circuit 500 and the voltage regulator module 400;

[0042] The switching control circuit 700 is electrically connected to the battery power supply circuit 300, the output end of the inverter boost circuit 600 and the mains power supply interface 100 respectively;

[0043] The emergency light interface 800 is electrically connected to the switching control circuit 700 .

[0044] According to an emergency light control circuit 700 provided by an embodiment of the utility model, when the mains power is normally supplied, the switching control circuit 700 controls the output end of the mains power interface 100 to be electrically connected to the emergency light interface 800, and the mains power directly supplies power to the emergency light. At the same time, the AC power output by the mains power interface 100 is converted into a DC power supply through the rectifier module 210, and then the DC power supply is converted into the charging voltage required by the battery power supply circuit 300 through the transformer module 220, so that the battery power supply circuit 300 is always kept in a powered state before the mains power is cut off. In addition, the battery power supply circuit 300 controls the voltage regulator module 400 to stop working, thereby making the dual PWM main control circuit 500 unable to work, further reducing the battery power supply. The consumption of electric energy stored in the circuit 300; when the city power is cut off, the battery power supply circuit 300 discharges, the switching control circuit 700 controls the output end of the inverter boost circuit 600 to be electrically connected to the emergency light interface 800, and the battery power supply circuit 300 outputs current to control the voltage regulator module 400, so that the voltage regulator module 400 works, and then the DC power output by the voltage regulator module 400 is converted into AC power through the coordinated action of the dual PWM main control circuit 500 and the inverter boost circuit 600, and the converted AC power is boosted to a working voltage suitable for the emergency light, so that the emergency light can continuously switch to the backup power supply to continue to supply power after the city power is cut off, and maintain long-term stable operation, which greatly improves the user's travel experience.

[0045] Reference Figure 3In some embodiments, the rectifier module 210 includes a first diode D1, a second diode D2, a third diode D3, and a fourth diode D4, the anode of the first diode D1 is electrically connected to the cathode of the second diode D2 and one end of the AC power interface 100, the cathode of the first diode D1 is electrically connected to the cathode of the third diode D3, the anode of the third diode D3 is electrically connected to the cathode of the fourth diode D4 and the other end of the AC power interface 100, and the anode of the fourth diode D4 is electrically connected to the anode of the second diode D2.

[0046] It should be noted that the rectifier module 210 is electrically connected to the AC power interface 100 via the connection terminal P1.

[0047] Reference Figure 3In some embodiments, the voltage transformation module 220 includes a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a fifth diode D5, a sixth diode D6, a seventh diode D7, an eighth diode D8, a ninth diode D9, a tenth diode D10, an eleventh diode D11, a controllable voltage regulator TL1, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C10, a sixth capacitor C11, a fifth diode D5, a sixth diode D6, a seventh diode D7, an eighth diode D8, a ninth diode D9, a tenth diode D10, an eleventh diode D11, a controllable voltage regulator TL1, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C11, a sixth diode D12, a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a fifth diode D5, a sixth diode D6, a seventh diode D7, an eighth diode D8, a ninth diode D9, a tenth diode D10, an eleventh diode D11, a controllable voltage regulator TL1, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C11, a C6, the seventh capacitor C7, the eighth capacitor C8, the first photocoupler U2, the first triode Q1, the first MOS tube Q2, the first voltage regulator DZ1 and the first transformer U1, one end of the first coil of the first transformer U1 is respectively electrically connected to one end of the first capacitor C1, one end of the second capacitor C2, one end of the third resistor R3, the positive electrode of the fifth diode D5, one end of the first resistor R1 and the output end of the rectifier module 210, the other end of the first coil of the first transformer U1 is respectively electrically connected to the positive electrode of the sixth diode D6 and the drain of the first MOS tube Q2, the cathode of the sixth diode D6 is respectively electrically connected to the other end of the second capacitor C2, the other end of the third resistor R3 and the cathode of the fifth diode D5, The other end of the first resistor R1 is electrically connected to one end of the second resistor R2, one end of the second coil of the first transformer U1 is electrically connected to the positive electrode of the ninth diode D9 and one end of the third capacitor C3, the other end of the third capacitor C3 is electrically connected to one end of the fourth resistor R4, the other end of the fourth resistor R4 is electrically connected to one end of the second resistor R2, one end of the fifth resistor R5, the negative electrode of the seventh diode D7 and the negative electrode of the first voltage regulator DZ1, the gate of the first MOS tube Q2 is electrically connected to the other end of the fifth resistor R5, the positive electrode of the seventh diode D7 and the collector of the first triode Q1, the source of the first MOS tube Q2 is electrically connected to one end of the sixth resistor R6, one end of the first resistor R1 and the eighth resistor R8 The first transistor Q1 is electrically connected to the first photocoupler U2, the second transistor Q2 is electrically connected to the first capacitor C4, and the first diode D8 is electrically connected to the first resistor R10. The first diode D8 is electrically connected to the first capacitor C4, and the first transistor Q1 is electrically connected to the first resistor R10. The first diode D8 is electrically connected to the first capacitor C4, and the first transistor Q1 is electrically connected to the first capacitor C4. The first diode D8 is electrically connected to the first capacitor C4, and the first transistor Q1 is electrically connected to the first capacitor C4. The first diode D8 is electrically connected to the first capacitor C4, and the first transistor Q1 is electrically connected to the first capacitor C4. The first diode D8 is electrically connected to the first capacitor C4, and the first transistor Q1 is electrically connected to the first capacitor C4. The first diode D8 is electrically connected to the first capacitor C4, and the first transistor Q1 is electrically connected to the first resistor R10. The first diode D8 is electrically connected to the first capacitor C4, and the first diode D11 is electrically connected to the first resistor R10.The second pin of the first photocoupler U2 is electrically connected to the other end of the eleventh resistor R11, one end of the twelfth resistor R12 and the cathode of the controllable voltage-stabilizing source TL1, respectively; the fourth pin of the first photocoupler U2 is electrically connected to one end of the fifth capacitor C5 and the cathode of the ninth diode D9, respectively; the other end of the twelfth resistor R12 is electrically connected to one end of the seventh capacitor C7, the other end of the seventh capacitor C7 is electrically connected to the other end of the thirteenth resistor R13, one end of the fourteenth resistor R14, one end of the fifteenth resistor R15 and the reference end of the controllable voltage-stabilizing source TL1, respectively; the eighth capacitor C One end of 8 is electrically connected to the other end of the fourteenth resistor R14, the other end of the fifteenth resistor R15 and the anode of the controllable voltage regulator TL1, respectively. The other end of the first capacitor C1, the cathode of the eighth diode D8, the emitter of the first transistor Q1, the other end of the fourth capacitor C4, the other end of the seventh resistor R7, the other end of the eighth resistor R8, the other end of the ninth resistor R9, the other end of the fifth capacitor C5, the other end of the sixth capacitor C6, the other end of the eighth capacitor C8, the other end of the second coil of the first transformer U1 and the other end of the third coil of the first transformer U1 are all grounded.

[0048] It should be noted that the transformer module 220 is electrically connected to the battery power supply circuit 300 and the indicator light circuit 900 via the connection terminal P2.

[0049] Preferably, the model of the first transformer U1 is EE25.

[0050] It can be understood that, through the cooperation between the rectifier module 210 and the transformer module 220 , the power provided by the mains can be converted into a DC power suitable for the battery-powered circuit 300 to operate.

[0051] Reference Figure 4In some embodiments, the battery power supply circuit 300 includes a sixteenth resistor R16, a seventeenth resistor R17, an eighteenth resistor R18, a nineteenth resistor R19, a twentieth resistor R20, a twenty-first resistor R21, a twelfth diode D12, a thirteenth diode D13, a fourteenth diode D14, a fifteenth diode D15, a ninth capacitor C9, a tenth capacitor C10, an eleventh capacitor C11, a second transistor Q3, a third transistor Q4, a first fuse F1, a second fuse F2 and a battery BT1. The anode of the twelfth diode D12 is electrically connected to the anode of the thirteenth diode D13, the anode of the fourteenth diode D14 and the output end of the transformer module 220, respectively; the cathode of the twelfth diode D12 is electrically connected to the cathode of the thirteenth diode D13, the anode of the battery BT1, one end of the ninth capacitor C9, one end of the tenth capacitor C10, one end of the sixteenth resistor R16 and the emitter of the second transistor Q3, respectively; the cathode of the fourteenth diode D14 is electrically connected to one end of the twentieth resistor R20, and the sixteenth resistor R16 is electrically connected to the emitter of the second transistor Q3. The other end of the first transistor 6 is electrically connected to the base of the second transistor Q3 and one end of the seventeenth resistor R17 respectively, the other end of the seventeenth resistor R17 is electrically connected to the collector of the third transistor Q4, the emitter of the second transistor Q3 is electrically connected to the input end of the regulator module 400 and the anode of the fifteenth diode D15 respectively, the cathode of the fifteenth diode D15 is electrically connected to one end of the eighteenth resistor R18, the other end of the eighteenth resistor R18 is electrically connected to one end of the nineteenth resistor R19, the base of the third transistor Q4 is electrically connected to the input end of the voltage ... The other end of the ninth resistor R19, one end of the twenty-first resistor R21, one end of the eleventh capacitor C11 and the other end of the twentieth resistor R20 are electrically connected, the negative electrode of the battery BT1 is electrically connected to one end of the first fuse F1 and one end of the second fuse F2, respectively, and the emitter of the third transistor Q4, the other end of the twenty-first resistor R21, the other end of the eleventh capacitor C11, the other end of the first fuse F1, the other end of the second fuse F2, the other end of the ninth capacitor C9 and the other end of the tenth capacitor C10 are all grounded.

[0052] It should be noted that the battery power supply circuit 300 is electrically connected to the regulator module 400 via the connection terminal A.

[0053] Preferably, the second transistor Q3 is a PNP transistor, and the third transistor Q4 is an NPN transistor.

[0054] It can be understood that when the AC power is supplied normally, the third transistor Q4 is turned on and the second transistor Q3 is turned off, and power cannot be provided from the battery power supply circuit 300 to the voltage regulator module 400, thereby causing the dual PWM main control circuit 500 and the inverter boost circuit 600 to stop working, reducing the energy loss of the battery power supply circuit 300.

[0055] Furthermore, when the city power is in a power-off state, the third transistor Q4 is turned off, the second transistor Q3 is turned on, and power is provided from the battery power supply circuit 300 to the voltage regulator module 400, thereby enabling the dual PWM main control circuit 500 and the inverter boost circuit 600 to work, ensuring that the emergency light has sufficient backup power supply to maintain uninterrupted lighting.

[0056] Reference Figure 5 In some embodiments, the regulator module 400 includes a twenty-second resistor R22, a three-terminal positive voltage regulator U3, and a twelfth capacitor C12, one end of the twenty-second resistor R22 is electrically connected to the collector of the second transistor Q3, the other end of the twenty-second resistor R22 is electrically connected to the input end of the three-terminal positive voltage regulator U3, the output end of the three-terminal positive voltage regulator U3 is electrically connected to one end of the twelfth capacitor C12 and the dual PWM main control circuit 500 and the inverter boost circuit 600, respectively, the ground end of the three-terminal positive voltage regulator U3 and the other end of the twelfth capacitor C12 are grounded.

[0057] It can be understood that the three-terminal positive voltage regulator U3 can automatically adjust the output voltage through its internal feedback control mechanism to ensure that during the power supply process of the battery BT1, the voltage received by the dual PWM main control circuit 500 always remains at a stable level, which helps to ensure the normal operation and stable performance of the main control circuit.

[0058] Reference Figure 5In some embodiments, the dual PWM main control circuit 500 includes a twenty-third resistor R23, a twenty-fourth resistor R24, a twenty-fifth resistor R25, a twenty-sixth resistor R26, a twenty-seventh resistor R27, a twenty-eighth resistor R28, a first sliding resistor R56, a second sliding resistor R57, a thirteenth capacitor C13, a fourteenth capacitor C14, a fifteenth capacitor C15, a sixteenth capacitor 16, a sixteenth diode D16 and a PWM control chip U4, and the PWM control chip U4 is respectively connected to one end of the twenty-seventh resistor R27, the positive electrode of the sixteenth diode D16, one end of the fourteenth capacitor C14, the twenty-sixth resistor R26, one end of the second sliding resistor R57, one end of the fifteenth capacitor C15, one end of the sixteenth capacitor 16, one end of the twenty-eighth resistor R28 and one end of the PWM control chip U4. and one end of the twenty-fourth resistor R24, the other end of the twenty-seventh resistor R27 is respectively electrically connected to the other end of the sixteenth capacitor C16 and the other end of the twenty-eighth resistor R28, the cathode of the sixteenth diode D16 is respectively electrically connected to one end of the twenty-fourth resistor R24 ​​and one end of the thirteenth capacitor C13, the other end of the twenty-fourth resistor R24 ​​is electrically connected to one end of the first sliding resistor R56, the other end of the first sliding resistor R56 is electrically connected to one end of the twenty-third resistor R23, the other end of the second sliding resistor R57 is electrically connected to one end of the twenty-fifth resistor R25, the other end of the twenty-third resistor R23, the other end of the thirteenth capacitor C13, the other end of the fourteenth capacitor C14, the other end of the twenty-fifth resistor R25 and the other end of the fifteenth capacitor C15 are all grounded.

[0059] Reference Figure 6In some embodiments, the inverter boost circuit 600 includes a twenty-ninth resistor R29, a thirtieth resistor R30, a thirty-first resistor R31, a thirty-second resistor R32, a thirty-third resistor R33, a thirty-fourth resistor R34, a thirty-fifth resistor R35, a thirty-sixth resistor R36, a thirty-seventh resistor R37, a thirty-eighth resistor R38, a thirty-ninth resistor R39, a fortieth resistor R40, a forty-first resistor R41, a forty-second resistor R42, a forty-third resistor R43, a seventeenth capacitor C17, an eighteenth capacitor C18, a nineteenth capacitor C19, a twentieth capacitor C20, a twenty-first capacitor C21, a fourth transistor Q5, a fifth transistor Q8, a second MOS transistor Q6, and a third MOS transistor Q7, the fourth MOS transistor Q9, the fifth MOS transistor Q10, the seventeenth diode D17, the eighteenth diode D18, the nineteenth diode D19, the twentieth diode D20, the twenty-first diode D21, the twenty-second diode D22, the twenty-third diode D23, the twenty-fourth diode D24, the twenty-fifth diode D25, the twenty-sixth diode D26 and the second transformer U5, one end of the first coil of the second transformer U5 is respectively electrically connected to one end of the nineteenth capacitor C19, one end of the thirty-sixth resistor R36, the source of the fourth MOS transistor Q9, the anode of the twenty-second diode D22 and the drain of the fifth MOS transistor Q10, and the other end of the nineteenth capacitor C19 is respectively electrically connected to the twentieth diode D2 The cathode of the third MOS tube Q0 is electrically connected to the cathode of the third MOS tube Q0, the other end of the third MOS tube Q0, and one end of the third MOS tube R0. The cathode of the third MOS tube Q0, the other end of the third MOS tube R ... The first transistor Q5 is electrically connected to the cathode of the first MOS transistor Q31, the source of the second MOS transistor Q6, the anode of the nineteenth diode D19 and the drain of the third MOS transistor Q7, the other end of the eighteenth capacitor C18 is electrically connected to the cathode of the seventeenth diode D17, the other end of the thirty-first resistor R31 and one end of the thirty-second resistor R32, the other end of the thirty-second resistor R32 is electrically connected to the collector of the fourth triode Q5, the cathode of the nineteenth diode D19 and the gate of the second MOS transistor Q6, the base of the fourth triode Q5 is electrically connected to one end of the thirty-third resistor R33, the gate of the third MOS transistor Q7 is electrically connected to one end of the thirtieth resistor R30, one end of the thirty-fifth resistor R35 and the anode of the eighteenth diode D18, respectively.The other end of the 30th resistor R30 is electrically connected to one end of the 17th capacitor C17, the other end of the 29th resistor R29, the emitter of the fourth transistor Q5 and one end of the 34th resistor R34 are grounded, the anode of the 17th diode D17 and the anode of the 20th diode D20 are electrically connected to the output end of the regulator module 400, one end of the second coil of the second transformer U5 is electrically connected to the anode of the 23rd diode D23, the cathode of the 24th diode D24 and the switching control circuit 700, the other end of the second coil of the second transformer U5 is electrically connected to one end of the 41st resistor R41 and the switching control circuit 700, one end of the 20th capacitor C20 is electrically connected to the cathode of the 23rd diode D23, the cathode of the 25th diode D25 and the 21st diode D26 respectively. One end of the capacitor C21 is electrically connected, one end of the 42nd resistor R42 is electrically connected to one end of the 43rd resistor R43, the other end of the 20th capacitor C20, the anode of the 24th diode D24, the anode of the 26th diode D26, the other end of the 21st capacitor C21 and the other end of the 42nd resistor R42 are all grounded, the other end of the 38th resistor R38, the other end of the 40th resistor R40, the cathode of the 21st diode D21 and one end of the 29th resistor R29, the other end of the 17th capacitor C17, the other end of the 33rd resistor R33, the other end of the 34th resistor R34, the cathode of the 18th diode D18, the other end of the 35th resistor R35 and the other end of the 43rd resistor R43 are all electrically connected to the dual PWM main control circuit 500.

[0060] It should be noted that the dual PWM master control circuit 500 is electrically connected to the other end of the thirty-third resistor R33, the other end of the thirty-fourth resistor R34, the negative electrode of the eighteenth diode D18 and the other end of the thirty-fifth resistor R35 in the inverter boost circuit 600 through the connection terminal B, the dual PWM master control circuit 500 is electrically connected to the other end of the forty-third resistor R43 and the other end of the seventeenth capacitor C17 in the inverter boost circuit 600 through the connection terminal C, the dual PWM master control circuit 500 is electrically connected to one end of the twenty-ninth resistor R29 in the inverter boost circuit 600 through the connection terminal D, and the regulator module 400 is electrically connected to the positive electrode of the seventeenth diode D17 and the positive electrode of the twentieth diode D20 in the inverter boost circuit 600 through the connection terminal E.

[0061] It should be noted that, when the dual PWM master control circuit 500 outputs a high level through the connection terminal B and outputs a low level through the connection terminal D, the fourth transistor Q5 is turned on, the second MOS transistor Q6 is turned off, the third MOS transistor Q7 is turned on, the fifth transistor Q8 is turned off, the fourth MOS transistor Q9 is turned on, and the fifth MOS transistor Q10 is turned off; when the dual PWM master control circuit 500 outputs a low level through the connection terminal B and outputs a high level through the connection terminal D, the fourth transistor Q5 is turned off, the second MOS transistor Q6 is turned on, the third MOS transistor Q7 is turned off, the fifth transistor Q8 is turned on, the fourth MOS transistor Q9 is turned off, and the fifth MOS transistor Q10 is turned on.

[0062] It can be understood that the output power of the regulator module 400 is converted into AC power through the synergy between the dual PWM main control circuit 500 and the fourth transistor Q5, the fifth transistor Q8, the second MOS transistor Q6, the third MOS transistor Q7, the fourth MOS transistor Q9 and the fifth MOS transistor Q10.

[0063] Furthermore, the converted AC power is boosted to the voltage required by the emergency light through the second transformer U5, so as to supply power to the emergency light.

[0064] Reference Figure 2In some embodiments, the switching control circuit 700 includes a twenty-seventh diode D27, a twenty-eighth diode D28, a twenty-ninth diode D29, a thirtieth diode D30, a thirty-first diode D31, a forty-fourth resistor R44, a forty-fifth resistor R45, a forty-sixth resistor R46, a forty-seventh resistor R47, a forty-eighth resistor R48, a forty-ninth resistor R49, a fiftieth resistor R50, a twenty-second capacitor C22, a twenty-third capacitor C23, a twenty-fourth capacitor C24, a twenty-fifth capacitor C25, a twenty-sixth capacitor C26, a twenty-seventh capacitor C27, a twenty-eighth capacitor C28, a third fuse F3, a fourth fuse F4, The second photocoupler U6, the second voltage regulator DZ2, the sixth transistor Q11, the seventh transistor Q12, the eighth transistor Q13, the test switch SW1, the first relay RL1 and the second relay RL2, one end of the third fuse F3 and one end of the fourth fuse F4 are electrically connected to the AC power interface 100, the other end of the fourth fuse F4 is electrically connected to one end of the forty-fifth resistor R45, one end of the twenty-third capacitor C23 and the rectifier module 210, the other end of the forty-fifth resistor R45 is electrically connected to the anode of the twenty-ninth diode D29 and the cathode of the twenty-seventh diode D27, and one end of the forty-sixth resistor R46 is electrically connected to the twenty-fourth capacitor C23. One end of C24 is electrically connected to the rectifier module 210, the other end of the forty-sixth resistor R46 is electrically connected to the cathode of the twenty-eighth diode D28 and the anode of the thirtieth diode D30, one end of the twenty-second capacitor C22 is electrically connected to the anode of the twenty-seventh diode D27, the anode of the twenty-eighth diode D28, one end of the forty-fourth resistor R44 and the anode of the second voltage regulator tube DZ2, the other end of the twenty-second capacitor C22 is electrically connected to the cathode of the twenty-ninth diode D29, the cathode of the thirtieth diode D30, the other end of the forty-fourth resistor R44 and one end of the forty-seventh resistor R47, and the other end of the forty-seventh resistor R47 is electrically connected to the second photocoupler. The first pin of the second photocoupler U6 is electrically connected, the cathode of the second voltage regulator tube DZ2 is electrically connected to the second pin of the second photocoupler U6, the third pin of the second photocoupler U6 is electrically connected to one end of the forty-eighth resistor R48, the other end of the forty-eighth resistor R48 is electrically connected to one end of the test switch SW1 and the base of the sixth transistor Q11, the collector of the sixth transistor Q11 is electrically connected to one end of the forty-ninth resistor R49, one end of the twenty-seventh capacitor C27 and the base of the seventh transistor Q12, the collector of the seventh transistor Q12 is electrically connected to one end of the fiftieth resistor R50, one end of the twenty-eighth capacitor C28 and the base of the eighth transistor Q13,The first relay RL1 is electrically connected to one end of the mains power interface 100, one end of the emergency light interface 800, the first output end of the inverter boost circuit 600, the other end of the 49th resistor R49, the fourth pin of the second photocoupler U6, the battery power supply circuit 300 and the collector of the eighth transistor Q13. The second relay RL2 is electrically connected to the other end of the mains power interface 100, the other end of the emergency light interface 800, the second output end of the inverter boost circuit 600, the other end of the 50th resistor R50, one end of the 25th capacitor C25, the collector of the eighth transistor Q13 and the 31st diode D31. The other end of the 23rd capacitor C23, the other end of the 24th capacitor C24, the other end of the test switch SW1, the emitter of the sixth transistor Q11, the other end of the 25th capacitor C25, the other end of the 27th capacitor C27, the emitter of the 7th transistor Q12, the other end of the 28th capacitor C28 and the emitter of the 8th transistor Q13 are all grounded.

[0065] It should be noted that the switching control circuit 700 is electrically connected to the output end of the inverter boost circuit 600 via the connection end P3.

[0066] It should be noted that when the AC power is normally supplied, the AC power output by the AC power supply interface 100 can be converted into DC power through the mutual cooperation between the twenty-seventh diode D27, the twenty-eighth diode D28, the twenty-ninth diode D29 and the thirtieth diode D30, so that the second photocoupler U6 can work.

[0067] It should be noted that, when the mains power is normally supplied, the emergency light interface 800 is electrically connected to the mains power interface 100, and the emergency light is powered by the mains power supply.

[0068] Furthermore, when the AC power stops supplying power, the second photocoupler U6 stops working, causing the sixth transistor Q11 to be cut off and the seventh transistor Q12 to be turned on. The output power of the battery power supply circuit 300 flows through the first relay RL1, the second relay RL2, the fiftieth resistor R50 and the seventh transistor Q12 to the ground terminal, forming a complete loop. Under the joint action of the first relay RL1 and the second relay RL2, the emergency light interface 800 disconnects from the AC power supply interface 100 and instead becomes electrically connected to the inverter boost circuit 600.

[0069] It can be understood that the switching control circuit 700 can maintain the switching connection between the emergency light interface 800 and the AC power interface 100 or the output of the inverter boost circuit 600, so that the emergency light can quickly switch to the inverter boost circuit 600 for power supply after the AC power is cut off, maintaining lighting uninterruptedly and improving the user's travel experience.

[0070] Reference Figure 4 In some embodiments, an indicator light circuit 900 is further included, and the indicator light circuit 900 is electrically connected to the output end of the transformer module 220 and the output end of the battery power supply circuit 300 respectively.

[0071] Reference Figure 4 In some embodiments, the indicator light circuit 900 includes a fifty-first resistor R51, a fifty-second resistor R52, a fifty-third resistor R53, a fifty-fourth resistor R54, a fifty-fifth resistor R55, a ninth transistor Q14, a third voltage regulator DZ3, a fourth voltage regulator DZ4, a first light-emitting diode G, a second light-emitting diode R, a third light-emitting diode Y and a twenty-ninth capacitor C29, one end of the twenty-ninth capacitor C29 is respectively electrically connected to one end of the fifty-first resistor R51, one end of the fifty-second resistor R52, one end of the fifty-third resistor R53, one end of the fifty-fifth resistor R55, the output end of the battery power supply circuit 300 and the output end of the transformer module 220, and the other end of the fifty-first resistor R51 is electrically connected to the positive electrode of the first light-emitting diode G. The fifty-second resistor R52 is electrically connected to the anode of the second light-emitting diode R and the collector of the ninth transistor Q14, respectively. The other end of the fifty-third resistor R53 is electrically connected to the cathode of the third voltage-stabilizing diode DZ3. The anode of the third voltage-stabilizing diode DZ3 is electrically connected to one end of the fifty-fourth resistor R54 and the base of the ninth transistor Q14, respectively. The other end of the fifty-fifth resistor R55 is electrically connected to the cathode of the fourth voltage-stabilizing diode DZ4, and the anode of the fourth voltage-stabilizing diode DZ4 is electrically connected to the cathode of the third light-emitting diode Y. The other end of the twenty-ninth capacitor C29, the cathode of the first light-emitting diode G, the cathode of the second light-emitting diode R, the emitter of the ninth transistor Q14, the other end of the fifty-fourth resistor R54 and the cathode of the third light-emitting diode Y are all grounded.

[0072] Preferably, the first light emitting diode G is a charging indicator light, and the second light emitting diode R is a fault indicator light.

[0073] It should be noted that when the mains power is supplied normally, the first light emitting diode G and the second light emitting diode R are both turned on.

[0074] Furthermore, if a fault occurs, the ninth transistor Q14 is turned on and the second light emitting diode is turned off. Maintenance personnel can quickly determine the circuit where the fault occurs by the operating status of the indicator light circuit 900 .

[0075] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An emergency light control circuit, characterized in that: include: Mains power interface; An AC-to-DC circuit, the AC-to-DC circuit comprising a rectifier module and a transformer module, the input end of the rectifier module is electrically connected to the mains power interface, and the output end of the rectifier module is electrically connected to the input end of the transformer module; A battery power supply circuit, the battery power supply circuit is electrically connected to the output end of the transformer module; A voltage regulator module, the voltage regulator module is electrically connected to the battery power supply circuit; A dual PWM main control circuit, the dual PWM main control circuit is electrically connected to the voltage regulator module; An inverter boost circuit, the inverter boost circuit is electrically connected to the dual PWM main control circuit and the voltage stabilizer module; A switching control circuit, the switching control circuit is electrically connected to the battery power supply circuit, the output end of the inverter boost circuit and the mains power supply interface respectively; An emergency light interface is electrically connected to the switching control circuit.

2. The emergency light control circuit according to claim 1, characterized in that: The rectifier module includes a first diode, a second diode, a third diode, and a fourth diode. The anode of the first diode is electrically connected to the cathode of the second diode and one end of the AC power interface, the cathode of the first diode is electrically connected to the cathode of the third diode, the anode of the third diode is electrically connected to the cathode of the fourth diode and the other end of the AC power interface, and the anode of the fourth diode is electrically connected to the anode of the second diode.

3. The emergency light control circuit according to claim 1, characterized in that: The voltage transformation module includes a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, a fifth diode, a sixth diode, a seventh diode, an eighth diode, a ninth diode, a tenth diode, an eleventh diode, a controllable voltage regulator, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, an eighth capacitor, a first photocoupler, a first triode, a first MOS tube, a first voltage regulator tube and a first transformer, wherein one end of a first coil of the first transformer is respectively connected to one end of the first capacitor and the second triode. The first transformer is electrically connected to one end of the first capacitor, one end of the third resistor, the anode of the fifth diode, one end of the first resistor and the output end of the rectifier module, the other end of the first coil of the first transformer is electrically connected to the anode of the sixth diode and the drain of the first MOS tube respectively, the cathode of the sixth diode is electrically connected to the other end of the second capacitor, the other end of the third resistor and the cathode of the fifth diode respectively, the other end of the first resistor is electrically connected to one end of the second resistor, one end of the second coil of the first transformer is electrically connected to the anode of the ninth diode and one end of the third capacitor respectively, the other end of the third capacitor is electrically connected to one end of the fourth resistor, and the other end of the fourth resistor is electrically connected to the second The first MOS transistor is electrically connected to one end of the sixth resistor, one end of the first resistor, the cathode of the seventh diode and the cathode of the first voltage regulator tube, the gate of the first MOS tube is electrically connected to the other end of the fifth resistor, the anode of the seventh diode and the collector of the first transistor, the source of the first MOS tube is electrically connected to one end of the sixth resistor, one end of the first resistor and one end of the eighth resistor, the other end of the sixth resistor is electrically connected to the third pin of the first photocoupler, one end of the fourth capacitor and the base of the first transistor, the anode of the first voltage regulator tube is electrically connected to the anode of the eighth diode, one end of the third coil of the first transformer is electrically connected to the twelfth pole The positive electrode of the tube and the positive electrode of the eleventh diode are electrically connected, one end of the sixth capacitor is electrically connected to the negative electrode of the tenth diode, the negative electrode of the eleventh diode, one end of the tenth resistor and one end of the thirteenth resistor respectively, the first pin of the first photocoupler is electrically connected to the other end of the tenth resistor and one end of the eleventh resistor respectively, the second pin of the first photocoupler is electrically connected to the other end of the eleventh resistor, one end of the twelfth resistor and the cathode of the controllable voltage-stabilized source respectively, the fourth pin of the first photocoupler is electrically connected to one end of the fifth capacitor and the negative electrode of the ninth diode respectively, and the other end of the twelfth resistor is electrically connected to one end of the seventh capacitor,The other end of the seventh capacitor is electrically connected to the other end of the thirteenth resistor, one end of the fourteenth resistor, one end of the fifteenth resistor and the reference end of the controllable voltage-stabilizing source, respectively; one end of the eighth capacitor is electrically connected to the other end of the fourteenth resistor, the other end of the fifteenth resistor and the anode of the controllable voltage-stabilizing source, respectively; the other end of the first capacitor, the cathode of the eighth diode, the emitter of the first transistor, the other end of the fourth capacitor, the other end of the seventh resistor, the other end of the eighth resistor, the other end of the ninth resistor, the other end of the fifth capacitor, the other end of the sixth capacitor, the other end of the eighth capacitor, the other end of the second coil of the first transformer and the other end of the third coil of the first transformer are all grounded.

4. The emergency light control circuit according to claim 1, characterized in that: The battery power supply circuit includes a sixteenth resistor, a seventeenth resistor, an eighteenth resistor, a nineteenth resistor, a twentieth resistor, a twenty-first resistor, a twelfth diode, a thirteenth diode, a fourteenth diode, a fifteenth diode, a ninth capacitor, a tenth capacitor, an eleventh capacitor, a second transistor, a third transistor, a first fuse, a second fuse and a battery, the anode of the twelfth diode is electrically connected to the anode of the thirteenth diode, the anode of the fourteenth diode and the output end of the transformer module, the cathode of the twelfth diode is electrically connected to the cathode of the thirteenth diode, the positive electrode of the battery, one end of the ninth capacitor, one end of the tenth capacitor, one end of the sixteenth resistor and the emitter of the second transistor, the cathode of the fourteenth diode is electrically connected to one end of the twentieth resistor, and the other end of the sixteenth resistor is electrically connected to the base of the second transistor and the emitter of the seventeenth resistor. One end of the seventeenth resistor is electrically connected, the other end of the seventeenth resistor is electrically connected to the collector of the third triode, the emitter of the second triode is respectively electrically connected to the input end of the regulator module and the positive electrode of the fifteenth diode, the negative electrode of the fifteenth diode is electrically connected to one end of the eighteenth resistor, the other end of the eighteenth resistor is electrically connected to one end of the nineteenth resistor, the base of the third triode is respectively electrically connected to the other end of the nineteenth resistor, one end of the twenty-first resistor, one end of the eleventh capacitor and the other end of the twentieth resistor, the negative electrode of the battery is respectively electrically connected to one end of the first fuse and one end of the second fuse, the emitter of the third triode, the other end of the twenty-first resistor, the other end of the eleventh capacitor, the other end of the first fuse, the other end of the second fuse, the other end of the ninth capacitor and the other end of the tenth capacitor are all grounded.

5. The emergency light control circuit according to claim 4, characterized in that: The regulator module includes a 22nd resistor, a three-terminal positive voltage regulator, and a twelfth capacitor. One end of the 22nd resistor is electrically connected to the collector of the second transistor, the other end of the 22nd resistor is electrically connected to the input end of the three-terminal positive voltage regulator, the output end of the three-terminal positive voltage regulator is electrically connected to one end of the twelfth capacitor, the dual PWM main control circuit, and the inverter boost circuit, respectively, and the ground end of the three-terminal positive voltage regulator and the other end of the twelfth capacitor are grounded.

6. The emergency light control circuit according to claim 1, characterized in that: The dual PWM main control circuit includes a twenty-third resistor, a twenty-fourth resistor, a twenty-fifth resistor, a twenty-sixth resistor, a twenty-seventh resistor, a twenty-eighth resistor, a first sliding resistor, a second sliding resistor, a thirteenth capacitor, a fourteenth capacitor, a fifteenth capacitor, a sixteenth capacitor, a sixteenth diode and a PWM control chip, wherein the PWM control chip is electrically connected to one end of the twenty-seventh resistor, the positive electrode of the sixteenth diode, one end of the fourteenth capacitor, the twenty-sixth resistor, one end of the second sliding resistor, one end of the fifteenth capacitor, one end of the sixteenth capacitor, one end of the twenty-eighth resistor and one end of the twenty-fourth resistor, respectively. The other end of the seven resistors is electrically connected to the other end of the sixteenth capacitor and the other end of the twenty-eighth resistor, respectively. The cathode of the sixteenth diode is electrically connected to one end of the twenty-fourth resistor and one end of the thirteenth capacitor, respectively. The other end of the twenty-fourth resistor is electrically connected to one end of the first sliding resistor, the other end of the first sliding resistor is electrically connected to one end of the twenty-third resistor, the other end of the second sliding resistor is electrically connected to one end of the twenty-fifth resistor, and the other end of the twenty-third resistor, the other end of the thirteenth capacitor, the other end of the fourteenth capacitor, the other end of the twenty-fifth resistor and the other end of the fifteenth capacitor are all grounded.

7. The emergency light control circuit according to claim 1, characterized in that: The inverter boost circuit includes a twenty-ninth resistor, a thirtieth resistor, a thirty-first resistor, a thirty-second resistor, a thirty-third resistor, a thirty-fourth resistor, a thirty-fifth resistor, a thirty-sixth resistor, a thirty-seventh resistor, a thirty-eighth resistor, a thirty-ninth resistor, a forty-first resistor, a forty-second resistor, a forty-third resistor, a seventeenth capacitor, an eighteenth capacitor, a nineteenth capacitor, a twentieth capacitor, a twenty-first capacitor, a fourth transistor, a fifth transistor, a second MOS transistor, a third MOS transistor, a fourth MOS transistor, a fifth MOS transistor, a seventeenth diode, an eighteenth diode, a nineteenth diode, a twentieth diode, a twenty-first diode, a twenty-second diode, a twenty-third diode, a twenty-fourth diode, a twenty-fifth diode, a twenty-sixth diode and a second transformer, one end of the first coil of the second transformer is respectively electrically connected to one end of the nineteenth capacitor, one end of the thirty-sixth resistor, the source of the fourth MOS tube, the anode of the twenty-second diode and the drain of the fifth MOS tube, the other end of the nineteenth capacitor is respectively electrically connected to the cathode of the twentieth diode, the other end of the thirty-sixth resistor and one end of the thirty-seventh resistor, the other end of the thirty-seventh resistor is respectively electrically connected to the gate of the fourth MOS tube, the collector of the fifth transistor and the cathode of the twenty-second diode, the base of the fifth transistor is respectively electrically connected to the cathode ... thirty-seventh resistor, the other end of the thirty One end of the thirty-eighth resistor is electrically connected, the gate of the fifth MOS tube is electrically connected to one end of the thirty-ninth resistor, one end of the fortieth resistor and the anode of the twenty-first diode respectively, the emitter of the fifth transistor and the other end of the thirty-ninth resistor are both grounded, the other end of the first coil of the second transformer is electrically connected to one end of the eighteenth capacitor, one end of the thirty-first resistor, the source of the second MOS tube, the anode of the nineteenth diode and the drain of the third MOS tube respectively, the other end of the eighteenth capacitor is electrically connected to the cathode of the seventeenth diode, the other end of the thirty-first resistor and one end of the thirty-second resistor respectively, the thirty-second The other end of the resistor is electrically connected to the collector of the fourth transistor Q5, the cathode of the nineteenth diode and the gate of the second MOS transistor respectively, the base of the fourth transistor is electrically connected to one end of the thirty-third resistor, the gate of the third MOS transistor is electrically connected to one end of the thirtieth resistor, one end of the thirty-fifth resistor and the anode of the eighteenth diode respectively, the other end of the thirtieth resistor is electrically connected to one end of the seventeenth capacitor, the other end of the twenty-ninth resistor, the emitter of the fourth transistor and one end of the thirty-fourth resistor are all grounded, the anode of the seventeenth diode and the anode of the twentieth diode are both electrically connected to the output end of the regulator module,One end of the second coil of the second transformer is electrically connected to the anode of the 23rd diode, the cathode of the 24th diode and the switching control circuit respectively, the other end of the second coil of the second transformer is electrically connected to one end of the 41st resistor and the switching control circuit respectively, one end of the 20th capacitor is electrically connected to the cathode of the 23rd diode, the cathode of the 25th diode and one end of the 21st capacitor respectively, one end of the 42nd resistor is electrically connected to one end of the 43rd resistor, the other end of the 20th capacitor, the anode of the 24th diode, the anode of the 26th diode, the other end of the 21st capacitor and the other end of the 42nd resistor are all grounded, the other end of the 38th resistor, the other end of the 40th resistor, the cathode of the 21st diode and one end of the 29th resistor, the other end of the 17th capacitor, the other end of the 33rd resistor, the other end of the 34th resistor, the cathode of the 18th diode, the other end of the 35th resistor and the other end of the 43rd resistor are all electrically connected to the dual PWM main control circuit.

8. The emergency light control circuit according to claim 1, characterized in that: The switching control circuit includes a twenty-seventh diode, a twenty-eighth diode, a twenty-ninth diode, a thirtieth diode, a thirty-first diode, a forty-fourth resistor, a forty-fifth resistor, a forty-sixth resistor, a forty-seventh resistor, a forty-eighth resistor, a forty-ninth resistor, a fiftieth resistor, a twenty-second capacitor, a twenty-third capacitor, a twenty-fourth capacitor, a twenty-fifth capacitor, a twenty-sixth capacitor, a twenty-seventh capacitor, a twenty-eighth capacitor, a third fuse, a fourth fuse, a second photocoupler, a second voltage regulator, a sixth transistor, a seventh transistor, an eighth transistor, a test switch, a first relay and a second relay, one end of the third fuse and one end of the fourth fuse are electrically connected to the AC power interface, and the fourth The other end of the fuse is respectively electrically connected to one end of the forty-fifth resistor, one end of the twenty-third capacitor and the rectifier module, the other end of the forty-fifth resistor is respectively electrically connected to the anode of the twenty-ninth diode and the cathode of the twenty-seventh diode, one end of the forty-sixth resistor is respectively electrically connected to one end of the twenty-fourth capacitor and the rectifier module, the other end of the forty-sixth resistor is respectively electrically connected to the cathode of the twenty-eighth diode and the anode of the thirtieth diode, one end of the twenty-second capacitor is respectively electrically connected to the anode of the twenty-seventh diode, the anode of the twenty-eighth diode, one end of the forty-fourth resistor and the anode of the second voltage regulator tube, and the The other end is respectively electrically connected to the cathode of the twenty-ninth diode, the cathode of the thirtieth diode, the other end of the forty-fourth resistor, and one end of the forty-seventh resistor. The other end of the forty-seventh resistor is electrically connected to the first pin of the second photocoupler, the cathode of the second voltage regulator is electrically connected to the second pin of the second photocoupler, the third pin of the second photocoupler is electrically connected to one end of the forty-eighth resistor, the other end of the forty-eighth resistor is respectively electrically connected to one end of the test switch and the base of the sixth transistor, the collector of the sixth transistor is respectively electrically connected to one end of the forty-ninth resistor, one end of the twenty-seventh capacitor, and the base of the seventh transistor, and the seventh transistor is electrically connected to the first pin of the second photocoupler. The collector of the transistor is respectively electrically connected to one end of the 50th resistor, one end of the 28th capacitor and the base of the eighth transistor, the first relay is respectively electrically connected to one end of the mains power interface, one end of the emergency light interface, the first output end of the inverter boost circuit, the other end of the 49th resistor, the fourth pin of the second photocoupler, the battery power supply circuit and the collector of the eighth transistor, the second relay is respectively electrically connected to the other end of the mains power interface, the other end of the emergency light interface, the second output end of the inverter boost circuit, the other end of the 50th resistor, one end of the 25th capacitor, the collector of the eighth transistor and the 31st diode,The other end of the 23rd capacitor, the other end of the 24th capacitor, the other end of the test switch, the emitter of the sixth transistor, the other end of the 25th capacitor, the other end of the 27th capacitor, the emitter of the seventh transistor, the other end of the 28th capacitor and the emitter of the eighth transistor are all grounded.

9. The emergency light control circuit according to claim 1, characterized in that: It also includes an indicator light circuit, which is electrically connected to the output end of the transformer module and the output end of the battery power supply circuit respectively.

10. The emergency light control circuit according to claim 9, characterized in that: The indicator light circuit includes a fifty-first resistor, a fifty-second resistor, a fifty-third resistor, a fifty-fourth resistor, a fifty-fifth resistor, a ninth triode, a third voltage-stabilizing diode, a fourth voltage-stabilizing diode, a first light-emitting diode, a second light-emitting diode, a third light-emitting diode and a twenty-ninth capacitor, one end of the twenty-ninth capacitor is respectively electrically connected to one end of the fifty-first resistor, one end of the fifty-second resistor, one end of the fifty-third resistor, one end of the fifty-fifth resistor, the output end of the battery power supply circuit and the output end of the transformer module, the other end of the fifty-first resistor is electrically connected to the positive electrode of the first light-emitting diode, and the other end of the fifty-second resistor is respectively electrically connected to the positive electrode of the first light-emitting diode. The positive electrode of the second light-emitting diode and the collector of the ninth transistor are electrically connected, the other end of the fifty-third resistor is electrically connected to the negative electrode of the third voltage-regulating diode, the positive electrode of the third voltage-regulating diode is electrically connected to one end of the fifty-fourth resistor and the base of the ninth transistor, the other end of the fifty-fifth resistor is electrically connected to the negative electrode of the fourth voltage-regulating diode, the positive electrode of the fourth voltage-regulating diode is electrically connected to the positive electrode of the third light-emitting diode, the other end of the twenty-ninth capacitor, the negative electrode of the first light-emitting diode, the negative electrode of the second light-emitting diode, the emitter of the ninth transistor, the other end of the fifty-fourth resistor and the negative electrode of the third light-emitting diode are all grounded.

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