WO2016078166A1 - Emergency lighting circuit - Google Patents

Emergency lighting circuit Download PDF

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Publication number
WO2016078166A1
WO2016078166A1 PCT/CN2014/093243 CN2014093243W WO2016078166A1 WO 2016078166 A1 WO2016078166 A1 WO 2016078166A1 CN 2014093243 W CN2014093243 W CN 2014093243W WO 2016078166 A1 WO2016078166 A1 WO 2016078166A1
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WO
WIPO (PCT)
Prior art keywords
resistor
circuit
capacitor
pin
chip
Prior art date
Application number
PCT/CN2014/093243
Other languages
French (fr)
Chinese (zh)
Inventor
张敏玲
Original Assignee
张敏玲
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Application filed by 张敏玲 filed Critical 张敏玲
Publication of WO2016078166A1 publication Critical patent/WO2016078166A1/en

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Definitions

  • the utility model relates to the field of energy-saving lighting, in particular to an emergency lighting circuit.
  • LED lights have become the mainstream of the energy-saving lamp market, and the use of LED lighting has become a future trend.
  • the general lighting system only works when there is electricity. When the power is cut off, the LED stops working, and it can't meet the needs of people's daily life.
  • the emergency light is only in power outage. In the case of the situation, it can work. When there is utility power, it will not work. If there is no power supply, if it does not call, it will work until the battery is exhausted, which will greatly waste power.
  • the purpose of the utility model is directed to the deficiencies of the prior art, and provides an emergency lighting circuit with a reasonable structure, capable of changing the LED power supply frequency during AC power supply, continuing illumination after power failure, and controlling the LED light bulb at any time with a switch.
  • An emergency lighting circuit comprising a switching power supply circuit, a backup battery, a backup battery charging circuit, a frequency signal amplifying circuit, a control signal amplifying circuit, a relay circuit, a central control circuit and an LED load circuit, wherein the relay circuit and the switching power supply
  • the output terminal, the backup battery, the AC input terminal, the control signal amplifying circuit and the central control circuit are connected, and the standby battery charging circuit is respectively connected with the switching power supply output end and the backup battery, and one end of the frequency signal amplifying circuit is connected to the AC input end, and the other end is connected with
  • the central control circuit is connected;
  • the frequency signal amplifying circuit comprises a first operational amplifying circuit and a second operational amplifying circuit, and one end of the first operational amplifying circuit and one end of the second operational amplifying circuit are respectively connected to the live line and the neutral line of the alternating current end.
  • the central control circuit includes a control chip IC4, a resistor R23, a resistor R33, and an electric Resistor R26 and capacitor C16, wherein the first chip of the control chip IC4 and the end of the resistor R23 and the end of the capacitor C16, the other end of the resistor R23 is connected to the anode of the backup battery, and the fourth pin of the control chip IC4 is connected with one end of the resistor R33 and one end of the resistor R16.
  • the other end of the resistor R16 is connected to the output end of the switching power supply, and the eighth pin of the control chip IC4, the other end of the resistor R33, and the other end of the capacitor C16 are grounded.
  • the control signal amplifying circuit comprises a diode D3, a resistor R34, a resistor R35, a diode D7, a capacitor C14, a resistor R22, a resistor R20, a resistor R17, a resistor R24, a resistor 29, a resistor R32, an op amp chip IC2 and a capacitor C400, wherein
  • the first pin of the operational amplifier chip IC2 is connected to one end of the resistor R24, the other end of the resistor R24 is connected to the third pin of the control chip IC4 of the central control circuit, and the second pin of the operational amplifier chip IC2 is connected with one end of the resistor R29 and one end of the resistor R32, and the operational amplifier
  • the third pin of chip IC2 is connected with one end of resistor R20, one end of resistor R22, one end of capacitor C14, the negative pole of diode D7, one end of resistor R34 and one end of resistor R35.
  • the seventh pin of the operational amplifier chip IC2 is connected with one end of the resistor R17 and one end of the capacitor C400.
  • the other end of the resistor R17, the other end of the resistor R20 and the other end of the resistor R29 are connected to the backup battery, the other end of the resistor R34 is connected to the cathode of the diode D3, the other end of the resistor R35, the other end of the capacitor C14, the anode of the diode D7, the other end of the resistor R22, and the other end of the capacitor C400.
  • the other end of the resistor R32 and the fourth pin of the operational amplifier chip IC2 are grounded.
  • the relay circuit includes a relay REL, a fuse F3, a fuse F4, a diode D4, a capacitor C9 and a resistor R200. wherein the first leg of the relay REL is connected to one end of the resistor R200, the second leg of the relay REL and the end of the capacitor C9 and the diode D4.
  • the negative pole is connected, the third leg of the relay REL is connected to the end of the fuse F3, the sixth leg of the relay REL is connected to the fuse F4, the seventh leg of the relay REL is connected to the positive pole of the diode D3 of the control signal amplifying circuit, the eighth leg of the relay REL and the other end of the capacitor C9 Grounding, the anode of the diode D4 is connected to the backup battery, the other end of the fuse F3 is connected to the AC line end, and the other end of the fuse F4 is connected to the AC line end.
  • the first operational amplifier circuit comprises a capacitor C26, a resistor R44, a resistor R45, a capacitor C25, a capacitor C21, a MOS transistor Q6, a capacitor C27, a resistor R48, and a resistor R18.
  • the first leg is connected with one end of the resistor R46 and one end of the resistor R53.
  • the third pin of the operational amplifier chip IC9 is connected with one end of the resistor R49, the other end of the resistor R46 and one end of the resistor R52, and the fifth pin of the operational amplifier IC9 and the end of the resistor R37 and the resistor.
  • One end of R28 is connected
  • the other end of R35 of the op amp IC9 is connected to the other end of the resistor R53
  • the seventh pin of the op amp IC9 is connected to the end of the resistor R51
  • the end of the op amp IC9 is connected to the end of the resistor R26
  • the other end of the resistor R52 is connected to the end of the capacitor C29.
  • the other end of the resistor R51 is connected to the base of the transistor Q5, the collector of the transistor Q5 is connected to the end of the resistor R50, the other end of the resistor R50 is connected to the second pin of the control chip IC4 of the central control circuit, the other end of the resistor R49 is connected to the end of the capacitor C28, the end of the resistor R13, and the resistor One end of R18 and one end of capacitor C27 are connected, the other end of resistor R13 is connected to one end of resistor R48, the other end of resistor R48 is connected with the other end of capacitor C27 and the D pole of MOS tube Q6, and the G pole of MOS tube Q6 is connected with capacitor C25.
  • the other end of the capacitor C25 is connected to one end of the capacitor C21, one end of the resistor R45 and one end of the resistor R44, the other end of the resistor R44 is connected to one end of the capacitor C26, the other end of the capacitor C26 is connected to one end of the fuse F3, the other end of the resistor R45, the other end of the capacitor C21,
  • the S pole of the MOS transistor Q6, the other end of the resistor R18, the other end of the capacitor C28, the fourth pin of the operational amplifier chip IC9, the other end of the resistor R37, the other end of the capacitor C29, and the emitter of the transistor Q5 are all grounded.
  • the second operational amplifier circuit comprises a capacitor C1, a resistor R38, a resistor R39, a capacitor C12, a capacitor C15, a MOS transistor Q7, a resistor R47, a capacitor C22, a resistor R58, a capacitor C19, a resistor R62, a resistor R59, a resistor R57, and a resistor R56.
  • the third pin of the op amp IC6 is connected to the end of the resistor R62, the other end of the resistor R57 and the end of the resistor R56.
  • the fifth pin of the op amp IC6 is connected with one end of the resistor R54 and one end of the resistor R61, and the sixth leg of the op amp chip IC6 is connected to the resistor.
  • the other end of the R55, the 7th pin of the op amp IC6 is connected to the R42 end, the 8th pin of the op amp IC6 is connected to the resistor R400, the other end of the resistor R42 is connected to the base of the transistor Q4, the collector of the transistor Q4 is connected to the end of the resistor R41, and the other end of the resistor R41
  • the seventh chip of the control chip IC4 connected to the central control circuit, the other end of the resistor R61 is connected to the other end of the resistor R400, the end of the resistor R62, the other end of the resistor R26, the other end of the resistor R28, the other end of the resistor R48, the end of the resistor R47, and the backup battery.
  • the other end of the resistor R62 is connected to the other end of the resistor R59, the end of the capacitor C19, the end of the resistor R58 and the end of the capacitor C22.
  • the other end of the resistor R56 is connected to one end of the capacitor C17, and the other end of the capacitor C22 is connected to the other end of the resistor R47 and the D pole of the MOS transistor Q7.
  • the G pole of the MOS transistor Q7 is connected to the C15 end of the capacitor, the other end of the capacitor C15 is connected to the end of the capacitor C12, the end of the resistor R39 and the end of the resistor R38, the other end of the resistor R38 is connected to one end of the capacitor C1, and the other end of the capacitor C1 is connected to the fuse circuit.
  • One end of F4 the other end of capacitor C12, the S pole of MOS transistor Q7, the other end of resistor R58, the other end of capacitor C19, the fourth pin of op amp IC6, the other end of resistor R54, capacitor The other end of C17 and the emitter of transistor Q4 are grounded.
  • the LED load circuit includes an AC power supply LED load circuit and a DC power supply LED load circuit, and the AC power supply LED load circuit is connected to an output end of the switching power supply circuit, and between the DC power supply LED load circuit and the central control circuit,
  • the DC-powered LED load switch circuit, the DC-powered LED load circuit is connected to the central control circuit through a DC-powered LED load switch circuit.
  • the DC-powered LED load switch circuit includes a resistor R25, a transistor Q1, a resistor R19, a resistor R31, a resistor R30, a MOS transistor Q2, and a diode D9, wherein one end of the resistor R25 is connected to the sixth pin of the control chip IC4 of the central control circuit.
  • the other end of the resistor R25 is connected to one end of the resistor R19 and the base of the transistor Q1.
  • the collector of the transistor Q1 is connected to one end of the resistor R30, and the other end of the resistor R30 is connected to the end of the resistor R31 and the G pole of the MOS transistor Q2, and the D pole of the MOS transistor Q2 is connected.
  • the anode of the diode D9, the other end of the resistor R19 and the emitter of the transistor Q1 are grounded.
  • the switching power supply circuit includes a transformer circuit, a rectifier circuit, a filter circuit, and a voltage conversion The circuit, the feedback circuit and the power management circuit; wherein the feedback circuit is connected to the power management circuit and the transformer circuit, the rectifier circuit, the voltage conversion circuit, and the filter circuit are all connected to the power management circuit.
  • the utility model has the beneficial effects that: by setting a relay circuit, a fast mutual conversion between alternating current and direct current is realized; the utility model can normally illuminate when there is mains power supply, and convert the power supply frequency by setting a frequency conversion circuit, Adapt to different environmental lighting needs, in case of power failure, supply power through the set standby power supply for emergency lighting; separate the AC load from the DC load, and control the LED light switch through the MCU, whether the switch is placed on or off Underneath, LED bulbs can be brighter and more practical.
  • Figure 1 is a schematic diagram of the circuit of the present invention
  • the emergency lighting circuit provided by the embodiment includes a switching power supply circuit, a backup battery, a backup battery charging circuit, a frequency signal amplifying circuit, a control signal amplifying circuit, a relay circuit, a central control circuit, and The LED load circuit, wherein the relay circuit is connected to the output end of the switching power supply, the backup battery, the AC input terminal, the control signal amplifying circuit and the central control circuit, and the two ends of the backup battery charging circuit are respectively connected to the output end of the switching power supply and the backup battery.
  • the frequency signal amplifying circuit comprises a first operational amplifying circuit and a second operational amplifying circuit, and the first operational amplifying circuit has one end and a second One end of the operational amplifier circuit is respectively connected to the live terminal and the neutral terminal of the alternating current.
  • the central control circuit includes a control chip IC4, a resistor R23, a resistor R33, a resistor R26 and a capacitor C16.
  • the first chip of the control chip IC4 is connected to one end of the resistor R23 and one end of the capacitor C16, and the other end of the resistor R23 is connected to the anode of the backup battery.
  • the fourth pin of the control chip IC4 is connected to one end of the resistor R33 and one end of the resistor R16, and the other end of the resistor R16 is connected to the output end of the switching power supply, the eighth pin of the control chip IC4, the other end of the resistor R33 and The other end of the capacitor C16 is grounded.
  • the control signal amplifying circuit comprises a diode D3, a resistor R34, a resistor R35, a diode D7, a capacitor C14, a resistor R22, a resistor R20, a resistor R17, a resistor R24, a resistor 29, a resistor R32, an op amp chip IC2 and a capacitor C400, wherein
  • the first pin of the operational amplifier chip IC2 is connected to one end of the resistor R24, the other end of the resistor R24 is connected to the third pin of the control chip IC4 of the central control circuit, and the second pin of the operational amplifier chip IC2 is connected with one end of the resistor R29 and one end of the resistor R32, and the operational amplifier
  • the third pin of chip IC2 is connected with one end of resistor R20, one end of resistor R22, one end of capacitor C14, the negative pole of diode D7, one end of resistor R34 and one end of resistor R35.
  • the seventh pin of the operational amplifier chip IC2 is connected with one end of the resistor R17 and one end of the capacitor C400.
  • the other end of the resistor R17, the other end of the resistor R20 and the other end of the resistor R29 are connected to the backup battery, the other end of the resistor R34 is connected to the cathode of the diode D3, the other end of the resistor R35, the other end of the capacitor C14, the anode of the diode D7, the other end of the resistor R22, and the other end of the capacitor C400.
  • the other end of the resistor R32 and the fourth pin of the operational amplifier chip IC2 are grounded.
  • the relay circuit includes a relay REL, a fuse F3, a fuse F4, a diode D4, a capacitor C9 and a resistor R200. wherein the first leg of the relay REL is connected to one end of the resistor R200, the second leg of the relay REL and the end of the capacitor C9 and the diode D4.
  • the negative pole is connected, the third leg of the relay REL is connected to the end of the fuse F3, the sixth leg of the relay REL is connected to the fuse F4, the seventh leg of the relay REL is connected to the positive pole of the diode D3 of the control signal amplifying circuit, the eighth leg of the relay REL and the other end of the capacitor C9 Grounding, the anode of the diode D4 is connected to the backup battery, the other end of the fuse F3 is connected to the AC line end, and the other end of the fuse F4 is connected to the AC line end.
  • the first operational amplifier circuit comprises a capacitor C26, a resistor R44, a resistor R45, a capacitor C25, a capacitor C21, a MOS transistor Q6, a capacitor C27, a resistor R48, a resistor R18, a resistor R13, a capacitor C28, a resistor R49, a resistor R37, and a resistor R28. , resistor R51, resistor R26, resistor R53, resistor R46, resistor R52, capacitor C29, op amp chip IC9, transistor Q5 and resistor R50; wherein the first pin of the op amp IC9 is connected to one end of the resistor R46 and one end of the resistor R53.
  • Op amp IC9 pin 3 and resistor R49 one end, electricity
  • the other end of the resistor R46 is connected to the end of the resistor R52.
  • the fifth pin of the op amp IC9 is connected to the end of the resistor R37 and the end of the resistor R28.
  • the other end of the op amp IC9 is connected to the other end of the resistor R53, and the seventh leg of the op amp IC9 is connected.
  • One end of the resistor R51, the eighth pin of the operational amplifier chip IC9 is connected to one end of the resistor R26, the other end of the resistor R52 is connected to one end of the capacitor C29, the other end of the resistor R51 is connected to the base of the transistor Q5, the collector of the transistor Q5 is connected to the end of the resistor R50, and the other end of the resistor R50 is connected to the center.
  • Control circuit control chip IC4 pin 2 the other end of the resistor R49 is connected to one end of the capacitor C28, one end of the resistor R13, one end of the resistor R18, one end of the capacitor C27, the other end of the resistor R13 is connected to one end of the resistor R48, the other end of the resistor R48 is connected with the capacitor C27
  • One end is connected to the D pole of the MOS transistor Q6, the G pole of the MOS transistor Q6 is connected to one end of the capacitor C25, the other end of the capacitor C25 is connected to one end of the capacitor C21, one end of the resistor R45 and one end of the resistor R44, and the other end of the resistor R44 is connected to the end of the capacitor C26.
  • the other end of the capacitor C26 is connected to one end of the fuse F3, the other end of the resistor R45, the other end of the capacitor C21, the S pole of the MOS transistor Q6, the other end of the resistor R18, the other end of the capacitor C28, and the fourth stage of the operational amplifier chip IC9. , The other end of the resistor R37, the other end of the capacitor C29 and the emitter of transistor Q5 are grounded.
  • the second operational amplifier circuit comprises a capacitor C1, a resistor R38, a resistor R39, a capacitor C12, a capacitor C15, a MOS transistor Q7, a resistor R47, a capacitor C22, a resistor R58, a capacitor C19, a resistor R62, a resistor R59, a resistor R57, and a resistor R56.
  • the third pin of the op amp IC6 is connected to the end of the resistor R62, the other end of the resistor R57 and the end of the resistor R56.
  • the fifth pin of the op amp IC6 is connected with one end of the resistor R54 and one end of the resistor R61, and the sixth leg of the op amp chip IC6 is connected to the resistor.
  • the other end of the R55, the 7th pin of the op amp IC6 is connected to the R42 end, the 8th pin of the op amp IC6 is connected to the resistor R400, the other end of the resistor R42 is connected to the base of the transistor Q4, the collector of the transistor Q4 is connected to the end of the resistor R41, and the other end of the resistor R41
  • the seventh chip of the control chip IC4 connected to the central control circuit, the other end of the resistor R61 and the other end of the resistor R400, the resistor One end of R62, the other end of resistor R26, the other end of resistor R28, the other end of resistor R48, one end of resistor R47 and the backup battery are connected, and the other end of resistor R62 is connected with the other end of resistor R59, one end of capacitor C19, one end of resistor R58 and one end of capacitor C22.
  • the other end of the resistor R56 is connected to one end of the capacitor C17, the other end of the capacitor C22 is connected to the other end of the resistor R47 and the D pole of the MOS transistor Q7, the G pole of the MOS transistor Q7 is connected to the end of the capacitor C15, the other end of the capacitor C15 is connected to the end of the capacitor C12, and the resistor One end of R39 is connected to one end of resistor R38, the other end of resistor R38 is connected to one end of capacitor C1, the other end of capacitor C1 is connected to one end of fuse F4 of relay circuit, the other end of capacitor C12, the S pole of MOS tube Q7, the other end of resistor R58, capacitor C19 At the other end, the fourth pin of the operational amplifier chip IC6, the other end of the resistor R54, the other end of the capacitor C17, and the emitter of the transistor Q4 are grounded.
  • the LED load circuit includes an AC power supply LED load circuit and a DC power supply LED load circuit, and the AC power supply LED load circuit is connected to an output end of the switching power supply circuit, and between the DC power supply LED load circuit and the central control circuit,
  • the DC-powered LED load switch circuit, the DC-powered LED load circuit is connected to the central control circuit through a DC-powered LED load switch circuit.
  • the DC-powered LED load switch circuit includes a resistor R25, a transistor Q1, a resistor R19, a resistor R31, a resistor R30, a MOS transistor Q2, and a diode D9, wherein one end of the resistor R25 is connected to the sixth pin of the control chip IC4 of the central control circuit.
  • the other end of the resistor R25 is connected to one end of the resistor R19 and the base of the transistor Q1.
  • the collector of the transistor Q1 is connected to one end of the resistor R30, and the other end of the resistor R30 is connected to the end of the resistor R31 and the G pole of the MOS transistor Q2, and the D pole of the MOS transistor Q2 is connected.
  • the anode of the diode D9, the other end of the resistor R19 and the emitter of the transistor Q1 are grounded.
  • the switching power supply circuit comprises a transformer circuit, a rectifier circuit, a filter circuit, a voltage conversion circuit, a feedback circuit and a power management circuit; wherein the feedback circuit is connected to the power management circuit and the transformer circuit, the rectifier circuit, the voltage conversion circuit, and the filter circuit Both are connected to a power management circuit.
  • the present invention is not limited to the above embodiments, and is similar to the present invention. All methods of the method and structure to achieve the object of the present invention are within the scope of the present invention.

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  • Circuit Arrangement For Electric Light Sources In General (AREA)
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Abstract

Disclosed in the present utility model is an emergency lighting circuit, characterized in that the emergency lighting circuit comprises a switching power supply circuit, a standby battery, a standby battery charging circuit, a frequency signal amplifier circuit, a control signal amplifier circuit, a relay circuit, a central control circuit, and an LED loading circuit; the relay circuit is in connection with a switching power supply output terminal, the standby battery, an alternating current input terminal, the control signal amplifier circuit, and the central control circuit; the two terminals of the standby battery charging circuit are respectively in connection with the switching power supply output terminal and the standby battery; one terminal of the frequency signal amplifier circuit is in connection with the alternating current input terminal, and the other terminal is in connection with the central control circuit; the frequency signal amplifier circuit comprises a first operational amplifier circuit and a second operational amplifier circuit, and one terminal of the first operational amplifier circuit and one terminal of the second operational amplifier circuit are respectively in connection with a live wire terminal and a zero line terminal of the alternating current.

Description

一种应急照明电路Emergency lighting circuit 技术领域Technical field
本实用新型涉及节能照明领域，具体涉及一种应急照明电路。The utility model relates to the field of energy-saving lighting, in particular to an emergency lighting circuit.
背景技术Background technique
目前，LED灯已成为节能灯市场的主流，使用LED灯照明，已成为未来趋势。而在目前市场上的LED照明系统中，普通照明系统，只有在有市电的时候才工作，当停电时，LED停止工作，不能很好的满足人们日常生活的需要；而应急灯只有在停电的情况下，才能工作，当有市电时，则不工作，且停电工作时，如果不来电，则一直工作，直到电池电量耗尽为止，大大浪费电能。At present, LED lights have become the mainstream of the energy-saving lamp market, and the use of LED lighting has become a future trend. In the current LED lighting system on the market, the general lighting system only works when there is electricity. When the power is cut off, the LED stops working, and it can't meet the needs of people's daily life. The emergency light is only in power outage. In the case of the situation, it can work. When there is utility power, it will not work. If there is no power supply, if it does not call, it will work until the battery is exhausted, which will greatly waste power.
实用新型内容Utility model content
本实用新型的目的针对现有技术的不足，提供一种结构合理，能够在交流供电时改变LED供电频率，停电后能继续照明，且可以用开关随时控制LED灯泡的应急照明电路。The purpose of the utility model is directed to the deficiencies of the prior art, and provides an emergency lighting circuit with a reasonable structure, capable of changing the LED power supply frequency during AC power supply, continuing illumination after power failure, and controlling the LED light bulb at any time with a switch.
本实用新型为实现上述目的所采用的技术方案为：The technical solution adopted by the utility model to achieve the above object is:
一种应急照明电路，其包括开关电源电路、备用电池、备用电池充电电路、频率信号放大电路、控制信号放大电路、继电器电路、中央控制电路和LED负载电路，其中，所述继电器电路与开关电源输出端、备用电池、交流电输入端、控制信号放大电路及中央控制电路相连接，备用电池充电电路两端分别连接开关电源输出端及备用电池，频率信号放大电路一端连接交流电输入端，另一端与所述中央控制电路相连接；所述频率信号放大电路包括第一运算放大电路和第二运算放大电路，且第一运算放大电路一端和第二运算放大电路一端分别连接交流电的火线端和零线端。An emergency lighting circuit comprising a switching power supply circuit, a backup battery, a backup battery charging circuit, a frequency signal amplifying circuit, a control signal amplifying circuit, a relay circuit, a central control circuit and an LED load circuit, wherein the relay circuit and the switching power supply The output terminal, the backup battery, the AC input terminal, the control signal amplifying circuit and the central control circuit are connected, and the standby battery charging circuit is respectively connected with the switching power supply output end and the backup battery, and one end of the frequency signal amplifying circuit is connected to the AC input end, and the other end is connected with The central control circuit is connected; the frequency signal amplifying circuit comprises a first operational amplifying circuit and a second operational amplifying circuit, and one end of the first operational amplifying circuit and one end of the second operational amplifying circuit are respectively connected to the live line and the neutral line of the alternating current end.
所述中央控制电路包括控制芯片IC4，电阻R23，电阻R33，电 阻R26和电容C16，其中，所述控制芯片IC4第1脚与电阻R23一端及电容C16一端，电阻R23另一端连接备用电池正极，控制芯片IC4第4脚与电阻R33一端及电阻R16一端相连接，电阻R16另一端连接开关电源输出端，控制芯片IC4第8脚、电阻R33另一端及电容C16另一端均接地。The central control circuit includes a control chip IC4, a resistor R23, a resistor R33, and an electric Resistor R26 and capacitor C16, wherein the first chip of the control chip IC4 and the end of the resistor R23 and the end of the capacitor C16, the other end of the resistor R23 is connected to the anode of the backup battery, and the fourth pin of the control chip IC4 is connected with one end of the resistor R33 and one end of the resistor R16. The other end of the resistor R16 is connected to the output end of the switching power supply, and the eighth pin of the control chip IC4, the other end of the resistor R33, and the other end of the capacitor C16 are grounded.
所述控制信号放大电路包括二极管D3，电阻R34，电阻R35，二极管D7，电容C14，电阻R22，电阻R20，电阻R17，电阻R24，电阻29，电阻R32，运放芯片IC2和电容C400，其中，所述运放芯片IC2第1脚连接电阻R24一端，电阻R24另一端连接中央控制电路的控制芯片IC4第3脚，运放芯片IC2第2脚与电阻R29一端及电阻R32一端相连接，运放芯片IC2第3脚与电阻R20一端、电阻R22一端、电容C14一端，二极管D7负极、电阻R34一端及电阻R35一端相连接，运放芯片IC2第7脚与电阻R17一端及电容C400一端相连接，电阻R17另一端、电阻R20另一端及电阻R29另一端连接备用电池，电阻R34另一端连接二极管D3负极，电阻R35另一端、电容C14另一端，二极管D7正极、电阻R22另一端、电容C400另一端、电阻R32另一端及运放芯片IC2第4脚均接地。The control signal amplifying circuit comprises a diode D3, a resistor R34, a resistor R35, a diode D7, a capacitor C14, a resistor R22, a resistor R20, a resistor R17, a resistor R24, a resistor 29, a resistor R32, an op amp chip IC2 and a capacitor C400, wherein The first pin of the operational amplifier chip IC2 is connected to one end of the resistor R24, the other end of the resistor R24 is connected to the third pin of the control chip IC4 of the central control circuit, and the second pin of the operational amplifier chip IC2 is connected with one end of the resistor R29 and one end of the resistor R32, and the operational amplifier The third pin of chip IC2 is connected with one end of resistor R20, one end of resistor R22, one end of capacitor C14, the negative pole of diode D7, one end of resistor R34 and one end of resistor R35. The seventh pin of the operational amplifier chip IC2 is connected with one end of the resistor R17 and one end of the capacitor C400. The other end of the resistor R17, the other end of the resistor R20 and the other end of the resistor R29 are connected to the backup battery, the other end of the resistor R34 is connected to the cathode of the diode D3, the other end of the resistor R35, the other end of the capacitor C14, the anode of the diode D7, the other end of the resistor R22, and the other end of the capacitor C400. The other end of the resistor R32 and the fourth pin of the operational amplifier chip IC2 are grounded.
所述的继电器电路包括继电器REL，熔断器F3，熔断器F4，二极管D4，电容C9和电阻R200，其中，继电器REL第1脚连接电阻R200一端，继电器REL第2脚与电容C9一端及二极管D4负极相连接，继电器REL第3脚连接熔断器F3一端，继电器REL第6脚连接熔断器F4，继电器REL第7脚连接控制信号放大电路的二极管D3正极，继电器REL第8脚及电容C9另一端接地，二极管D4正极连接备用电池，熔断器F3另一端连接交流电火线端，熔断器F4另一端连接交流电零线端。The relay circuit includes a relay REL, a fuse F3, a fuse F4, a diode D4, a capacitor C9 and a resistor R200. wherein the first leg of the relay REL is connected to one end of the resistor R200, the second leg of the relay REL and the end of the capacitor C9 and the diode D4. The negative pole is connected, the third leg of the relay REL is connected to the end of the fuse F3, the sixth leg of the relay REL is connected to the fuse F4, the seventh leg of the relay REL is connected to the positive pole of the diode D3 of the control signal amplifying circuit, the eighth leg of the relay REL and the other end of the capacitor C9 Grounding, the anode of the diode D4 is connected to the backup battery, the other end of the fuse F3 is connected to the AC line end, and the other end of the fuse F4 is connected to the AC line end.
所述第一运算放大电路包括电容C26，电阻R44，电阻R45，电容C25，电容C21，MOS管Q6，电容C27，电阻R48，电阻R18， 电阻R13，电容C28，电阻R49，电阻R37，电阻R28，电阻R51，电阻R26，电阻R53，电阻R46，电阻R52，电容C29，运放芯片IC9，三极管Q5和电阻R50；其中，运放芯片IC9第1脚与电阻R46一端及电阻R53一端相连接，运放芯片IC9第3脚与电阻R49一端、电阻R46另一端及电阻R52一端相连接，运放芯片IC9第5脚与电阻R37一端及电阻R28一端相连接，运放芯片IC9第6脚连接电阻R53另一端，运放芯片IC9第7脚连接电阻R51一端，运放芯片IC9第8脚连接电阻R26一端，电阻R52另一端连接电容C29一端，电阻R51另一端连接三极管Q5基极，三极管Q5集电极连接电阻R50一端，电阻R50另一端连接中央控制电路的控制芯片IC4第2脚，电阻R49另一端与电容C28一端、电阻R13一端、电阻R18一端、电容C27一端相连接，电阻R13另一端连接电阻R48一端，电阻R48另一端与电容C27另一端及MOS管Q6的D极相连接，MOS管Q6的G极连接电容C25一端，电容C25另一端与电容C21一端、电阻R45一端及电阻R44一端相连接，电阻R44另一端连接电容C26一端，电容C26另一端连接熔断器F3一端，电阻R45另一端、电容C21另一端、MOS管Q6的S极、电阻R18另一端、电容C28另一端、运放芯片IC9第4脚、电阻R37另一端、电容C29另一端及三极管Q5发射极均接地。The first operational amplifier circuit comprises a capacitor C26, a resistor R44, a resistor R45, a capacitor C25, a capacitor C21, a MOS transistor Q6, a capacitor C27, a resistor R48, and a resistor R18. Resistor R13, capacitor C28, resistor R49, resistor R37, resistor R28, resistor R51, resistor R26, resistor R53, resistor R46, resistor R52, capacitor C29, op amp IC9, transistor Q5 and resistor R50; among them, op amp IC9 The first leg is connected with one end of the resistor R46 and one end of the resistor R53. The third pin of the operational amplifier chip IC9 is connected with one end of the resistor R49, the other end of the resistor R46 and one end of the resistor R52, and the fifth pin of the operational amplifier IC9 and the end of the resistor R37 and the resistor. One end of R28 is connected, the other end of R35 of the op amp IC9 is connected to the other end of the resistor R53, the seventh pin of the op amp IC9 is connected to the end of the resistor R51, the end of the op amp IC9 is connected to the end of the resistor R26, and the other end of the resistor R52 is connected to the end of the capacitor C29. The other end of the resistor R51 is connected to the base of the transistor Q5, the collector of the transistor Q5 is connected to the end of the resistor R50, the other end of the resistor R50 is connected to the second pin of the control chip IC4 of the central control circuit, the other end of the resistor R49 is connected to the end of the capacitor C28, the end of the resistor R13, and the resistor One end of R18 and one end of capacitor C27 are connected, the other end of resistor R13 is connected to one end of resistor R48, the other end of resistor R48 is connected with the other end of capacitor C27 and the D pole of MOS tube Q6, and the G pole of MOS tube Q6 is connected with capacitor C25. At one end, the other end of the capacitor C25 is connected to one end of the capacitor C21, one end of the resistor R45 and one end of the resistor R44, the other end of the resistor R44 is connected to one end of the capacitor C26, the other end of the capacitor C26 is connected to one end of the fuse F3, the other end of the resistor R45, the other end of the capacitor C21, The S pole of the MOS transistor Q6, the other end of the resistor R18, the other end of the capacitor C28, the fourth pin of the operational amplifier chip IC9, the other end of the resistor R37, the other end of the capacitor C29, and the emitter of the transistor Q5 are all grounded.
所述第二运算放大电路包括电容C1，电阻R38，电阻R39，电容C12，电容C15，MOS管Q7，电阻R47，电容C22，电阻R58，电容C19，电阻R62，电阻R59，电阻R57，电阻R56，电容C17，电阻R55，电阻R54，电阻R42，电阻R400，电阻R61，三极管Q4，电阻R41和运放芯片IC6，其中，运放芯片IC6第1脚与电阻R57一端及电阻R55一端相连接，运放芯片IC6第3脚与电阻R62一端、电阻R57另一端及电阻R56一端相连接，运放芯片IC6第5脚与电阻R54一端及电阻R61一端相连接，运放芯片IC6第6脚连接电阻 R55另一端，运放芯片IC6第7脚连接电阻R42一端，运放芯片IC6第8脚连接电阻R400，电阻R42另一端连接三极管Q4基极，三极管Q4集电极连接电阻R41一端，电阻R41另一端连接中央控制电路的控制芯片IC4第7脚，电阻R61另一端与电阻R400另一端、电阻R62一端、电阻R26另一端、电阻R28另一端、电阻R48另一端、电阻R47一端及备用电池相连接，电阻R62另一端与电阻R59另一端、电容C19一端、电阻R58一端及电容C22一端相连接，电阻R56另一端连接电容C17一端，电容C22另一端与电阻R47另一端及MOS管Q7的D极相连接，MOS管Q7的G极连接电容C15一端，电容C15另一端与电容C12一端、电阻R39一端及电阻R38一端相连接，电阻R38另一端连接电容C1一端，电容C1另一端连接继电器电路的熔断器F4一端，电容C12另一端、MOS管Q7的S极、电阻R58另一端、电容C19另一端、运放芯片IC6第4脚、电阻R54另一端、电容C17另一端及三极管Q4发射极均接地。The second operational amplifier circuit comprises a capacitor C1, a resistor R38, a resistor R39, a capacitor C12, a capacitor C15, a MOS transistor Q7, a resistor R47, a capacitor C22, a resistor R58, a capacitor C19, a resistor R62, a resistor R59, a resistor R57, and a resistor R56. , capacitor C17, resistor R55, resistor R54, resistor R42, resistor R400, resistor R61, transistor Q4, resistor R41 and op amp chip IC6, wherein the first leg of the op amp IC6 is connected to one end of the resistor R57 and one end of the resistor R55. The third pin of the op amp IC6 is connected to the end of the resistor R62, the other end of the resistor R57 and the end of the resistor R56. The fifth pin of the op amp IC6 is connected with one end of the resistor R54 and one end of the resistor R61, and the sixth leg of the op amp chip IC6 is connected to the resistor. The other end of the R55, the 7th pin of the op amp IC6 is connected to the R42 end, the 8th pin of the op amp IC6 is connected to the resistor R400, the other end of the resistor R42 is connected to the base of the transistor Q4, the collector of the transistor Q4 is connected to the end of the resistor R41, and the other end of the resistor R41 The seventh chip of the control chip IC4 connected to the central control circuit, the other end of the resistor R61 is connected to the other end of the resistor R400, the end of the resistor R62, the other end of the resistor R26, the other end of the resistor R28, the other end of the resistor R48, the end of the resistor R47, and the backup battery. The other end of the resistor R62 is connected to the other end of the resistor R59, the end of the capacitor C19, the end of the resistor R58 and the end of the capacitor C22. The other end of the resistor R56 is connected to one end of the capacitor C17, and the other end of the capacitor C22 is connected to the other end of the resistor R47 and the D pole of the MOS transistor Q7. Connect, the G pole of the MOS transistor Q7 is connected to the C15 end of the capacitor, the other end of the capacitor C15 is connected to the end of the capacitor C12, the end of the resistor R39 and the end of the resistor R38, the other end of the resistor R38 is connected to one end of the capacitor C1, and the other end of the capacitor C1 is connected to the fuse circuit. One end of F4, the other end of capacitor C12, the S pole of MOS transistor Q7, the other end of resistor R58, the other end of capacitor C19, the fourth pin of op amp IC6, the other end of resistor R54, capacitor The other end of C17 and the emitter of transistor Q4 are grounded.
LED负载电路包括交流供电LED负载电路和直流供电LED负载电路，所述交流供电LED负载电路连接所述开关电源电路的输出端，直流供电LED负载电路与所述中央控制电路之间，还设有直流供电LED负载开关电路，直流供电LED负载电路通过直流供电LED负载开关电路，与中央控制电路相连接。The LED load circuit includes an AC power supply LED load circuit and a DC power supply LED load circuit, and the AC power supply LED load circuit is connected to an output end of the switching power supply circuit, and between the DC power supply LED load circuit and the central control circuit, The DC-powered LED load switch circuit, the DC-powered LED load circuit is connected to the central control circuit through a DC-powered LED load switch circuit.
所述直流供电LED负载开关电路包括电阻R25，三极管Q1，电阻R19，电阻R31，电阻R30，MOS管Q2，二极管D9，其中，所述电阻R25一端连接中央控制电路的控制芯片IC4第6脚，电阻R25另一端与电阻R19一端及三极管Q1基极相连接，三极管Q1集电极连接电阻R30一端，电阻R30另一端与电阻R31一端及MOS管Q2的G极相连接，MOS管Q2的D极连接二极管D9正极，电阻R19另一端及三极管Q1发射极均接地。The DC-powered LED load switch circuit includes a resistor R25, a transistor Q1, a resistor R19, a resistor R31, a resistor R30, a MOS transistor Q2, and a diode D9, wherein one end of the resistor R25 is connected to the sixth pin of the control chip IC4 of the central control circuit. The other end of the resistor R25 is connected to one end of the resistor R19 and the base of the transistor Q1. The collector of the transistor Q1 is connected to one end of the resistor R30, and the other end of the resistor R30 is connected to the end of the resistor R31 and the G pole of the MOS transistor Q2, and the D pole of the MOS transistor Q2 is connected. The anode of the diode D9, the other end of the resistor R19 and the emitter of the transistor Q1 are grounded.
所述开关电源电路包括变压电路，整流电路，滤波电路，电压转 换电路，反馈电路和电源管理电路；其中所述反馈电路连接电源管理电路和变压电路，整流电路，电压转换电路，滤波电路均与电源管理电路相连接。The switching power supply circuit includes a transformer circuit, a rectifier circuit, a filter circuit, and a voltage conversion The circuit, the feedback circuit and the power management circuit; wherein the feedback circuit is connected to the power management circuit and the transformer circuit, the rectifier circuit, the voltage conversion circuit, and the filter circuit are all connected to the power management circuit.
本实用新型的有益效果是：通过设置继电器电路，实现快速对交流和直流的相互转换；本实用新型能够在有市电供电时，正常照明，并且通过设置频率转化电路，对供电频率进行转换，适应不同环境照明需求，在停电时，通过设置的备用电源进行供电，用于应急照明；将交流负载与直流负载分开，且可通过MCU控制LED灯的开关，开关无论置于开或者关的情况下，LED灯泡都可亮，更加实用。The utility model has the beneficial effects that: by setting a relay circuit, a fast mutual conversion between alternating current and direct current is realized; the utility model can normally illuminate when there is mains power supply, and convert the power supply frequency by setting a frequency conversion circuit, Adapt to different environmental lighting needs, in case of power failure, supply power through the set standby power supply for emergency lighting; separate the AC load from the DC load, and control the LED light switch through the MCU, whether the switch is placed on or off Underneath, LED bulbs can be brighter and more practical.
附图说明DRAWINGS
图1为本实用新型电路原理图；Figure 1 is a schematic diagram of the circuit of the present invention;
图2为本实用新型LED灯电路。2 is an LED lamp circuit of the present invention.
具体实施方式detailed description
实施例：参见图1和图2，本实施例提供的应急照明电路，其包括开关电源电路、备用电池、备用电池充电电路、频率信号放大电路、控制信号放大电路、继电器电路、中央控制电路和LED负载电路，其中，所述继电器电路与开关电源输出端、备用电池、交流电输入端、控制信号放大电路及中央控制电路相连接，备用电池充电电路两端分别连接开关电源输出端及备用电池，频率信号放大电路一端连接交流电输入端，另一端与所述中央控制电路相连接；所述频率信号放大电路包括第一运算放大电路和第二运算放大电路，且第一运算放大电路一端和第二运算放大电路一端分别连接交流电的火线端和零线端。Embodiments: Referring to FIG. 1 and FIG. 2, the emergency lighting circuit provided by the embodiment includes a switching power supply circuit, a backup battery, a backup battery charging circuit, a frequency signal amplifying circuit, a control signal amplifying circuit, a relay circuit, a central control circuit, and The LED load circuit, wherein the relay circuit is connected to the output end of the switching power supply, the backup battery, the AC input terminal, the control signal amplifying circuit and the central control circuit, and the two ends of the backup battery charging circuit are respectively connected to the output end of the switching power supply and the backup battery. One end of the frequency signal amplifying circuit is connected to the alternating current input end, and the other end is connected to the central control circuit; the frequency signal amplifying circuit comprises a first operational amplifying circuit and a second operational amplifying circuit, and the first operational amplifying circuit has one end and a second One end of the operational amplifier circuit is respectively connected to the live terminal and the neutral terminal of the alternating current.
所述中央控制电路包括控制芯片IC4，电阻R23，电阻R33，电阻R26和电容C16，其中，所述控制芯片IC4第1脚与电阻R23一端及电容C16一端，电阻R23另一端连接备用电池正极，控制芯片IC4第4脚与电阻R33一端及电阻R16一端相连接，电阻R16另一端连接开关电源输出端，控制芯片IC4第8脚、电阻R33另一端及 电容C16另一端均接地。The central control circuit includes a control chip IC4, a resistor R23, a resistor R33, a resistor R26 and a capacitor C16. The first chip of the control chip IC4 is connected to one end of the resistor R23 and one end of the capacitor C16, and the other end of the resistor R23 is connected to the anode of the backup battery. The fourth pin of the control chip IC4 is connected to one end of the resistor R33 and one end of the resistor R16, and the other end of the resistor R16 is connected to the output end of the switching power supply, the eighth pin of the control chip IC4, the other end of the resistor R33 and The other end of the capacitor C16 is grounded.
所述控制信号放大电路包括二极管D3，电阻R34，电阻R35，二极管D7，电容C14，电阻R22，电阻R20，电阻R17，电阻R24，电阻29，电阻R32，运放芯片IC2和电容C400，其中，所述运放芯片IC2第1脚连接电阻R24一端，电阻R24另一端连接中央控制电路的控制芯片IC4第3脚，运放芯片IC2第2脚与电阻R29一端及电阻R32一端相连接，运放芯片IC2第3脚与电阻R20一端、电阻R22一端、电容C14一端，二极管D7负极、电阻R34一端及电阻R35一端相连接，运放芯片IC2第7脚与电阻R17一端及电容C400一端相连接，电阻R17另一端、电阻R20另一端及电阻R29另一端连接备用电池，电阻R34另一端连接二极管D3负极，电阻R35另一端、电容C14另一端，二极管D7正极、电阻R22另一端、电容C400另一端、电阻R32另一端及运放芯片IC2第4脚均接地。The control signal amplifying circuit comprises a diode D3, a resistor R34, a resistor R35, a diode D7, a capacitor C14, a resistor R22, a resistor R20, a resistor R17, a resistor R24, a resistor 29, a resistor R32, an op amp chip IC2 and a capacitor C400, wherein The first pin of the operational amplifier chip IC2 is connected to one end of the resistor R24, the other end of the resistor R24 is connected to the third pin of the control chip IC4 of the central control circuit, and the second pin of the operational amplifier chip IC2 is connected with one end of the resistor R29 and one end of the resistor R32, and the operational amplifier The third pin of chip IC2 is connected with one end of resistor R20, one end of resistor R22, one end of capacitor C14, the negative pole of diode D7, one end of resistor R34 and one end of resistor R35. The seventh pin of the operational amplifier chip IC2 is connected with one end of the resistor R17 and one end of the capacitor C400. The other end of the resistor R17, the other end of the resistor R20 and the other end of the resistor R29 are connected to the backup battery, the other end of the resistor R34 is connected to the cathode of the diode D3, the other end of the resistor R35, the other end of the capacitor C14, the anode of the diode D7, the other end of the resistor R22, and the other end of the capacitor C400. The other end of the resistor R32 and the fourth pin of the operational amplifier chip IC2 are grounded.
所述的继电器电路包括继电器REL，熔断器F3，熔断器F4，二极管D4，电容C9和电阻R200，其中，继电器REL第1脚连接电阻R200一端，继电器REL第2脚与电容C9一端及二极管D4负极相连接，继电器REL第3脚连接熔断器F3一端，继电器REL第6脚连接熔断器F4，继电器REL第7脚连接控制信号放大电路的二极管D3正极，继电器REL第8脚及电容C9另一端接地，二极管D4正极连接备用电池，熔断器F3另一端连接交流电火线端，熔断器F4另一端连接交流电零线端。The relay circuit includes a relay REL, a fuse F3, a fuse F4, a diode D4, a capacitor C9 and a resistor R200. wherein the first leg of the relay REL is connected to one end of the resistor R200, the second leg of the relay REL and the end of the capacitor C9 and the diode D4. The negative pole is connected, the third leg of the relay REL is connected to the end of the fuse F3, the sixth leg of the relay REL is connected to the fuse F4, the seventh leg of the relay REL is connected to the positive pole of the diode D3 of the control signal amplifying circuit, the eighth leg of the relay REL and the other end of the capacitor C9 Grounding, the anode of the diode D4 is connected to the backup battery, the other end of the fuse F3 is connected to the AC line end, and the other end of the fuse F4 is connected to the AC line end.
所述第一运算放大电路包括电容C26，电阻R44，电阻R45，电容C25，电容C21，MOS管Q6，电容C27，电阻R48，电阻R18，电阻R13，电容C28，电阻R49，电阻R37，电阻R28，电阻R51，电阻R26，电阻R53，电阻R46，电阻R52，电容C29，运放芯片IC9，三极管Q5和电阻R50；其中，运放芯片IC9第1脚与电阻R46一端及电阻R53一端相连接，运放芯片IC9第3脚与电阻R49一端、电 阻R46另一端及电阻R52一端相连接，运放芯片IC9第5脚与电阻R37一端及电阻R28一端相连接，运放芯片IC9第6脚连接电阻R53另一端，运放芯片IC9第7脚连接电阻R51一端，运放芯片IC9第8脚连接电阻R26一端，电阻R52另一端连接电容C29一端，电阻R51另一端连接三极管Q5基极，三极管Q5集电极连接电阻R50一端，电阻R50另一端连接中央控制电路的控制芯片IC4第2脚，电阻R49另一端与电容C28一端、电阻R13一端、电阻R18一端、电容C27一端相连接，电阻R13另一端连接电阻R48一端，电阻R48另一端与电容C27另一端及MOS管Q6的D极相连接，MOS管Q6的G极连接电容C25一端，电容C25另一端与电容C21一端、电阻R45一端及电阻R44一端相连接，电阻R44另一端连接电容C26一端，电容C26另一端连接熔断器F3一端，电阻R45另一端、电容C21另一端、MOS管Q6的S极、电阻R18另一端、电容C28另一端、运放芯片IC9第4脚、电阻R37另一端、电容C29另一端及三极管Q5发射极均接地。The first operational amplifier circuit comprises a capacitor C26, a resistor R44, a resistor R45, a capacitor C25, a capacitor C21, a MOS transistor Q6, a capacitor C27, a resistor R48, a resistor R18, a resistor R13, a capacitor C28, a resistor R49, a resistor R37, and a resistor R28. , resistor R51, resistor R26, resistor R53, resistor R46, resistor R52, capacitor C29, op amp chip IC9, transistor Q5 and resistor R50; wherein the first pin of the op amp IC9 is connected to one end of the resistor R46 and one end of the resistor R53. Op amp IC9 pin 3 and resistor R49 one end, electricity The other end of the resistor R46 is connected to the end of the resistor R52. The fifth pin of the op amp IC9 is connected to the end of the resistor R37 and the end of the resistor R28. The other end of the op amp IC9 is connected to the other end of the resistor R53, and the seventh leg of the op amp IC9 is connected. One end of the resistor R51, the eighth pin of the operational amplifier chip IC9 is connected to one end of the resistor R26, the other end of the resistor R52 is connected to one end of the capacitor C29, the other end of the resistor R51 is connected to the base of the transistor Q5, the collector of the transistor Q5 is connected to the end of the resistor R50, and the other end of the resistor R50 is connected to the center. Control circuit control chip IC4 pin 2, the other end of the resistor R49 is connected to one end of the capacitor C28, one end of the resistor R13, one end of the resistor R18, one end of the capacitor C27, the other end of the resistor R13 is connected to one end of the resistor R48, the other end of the resistor R48 is connected with the capacitor C27 One end is connected to the D pole of the MOS transistor Q6, the G pole of the MOS transistor Q6 is connected to one end of the capacitor C25, the other end of the capacitor C25 is connected to one end of the capacitor C21, one end of the resistor R45 and one end of the resistor R44, and the other end of the resistor R44 is connected to the end of the capacitor C26. The other end of the capacitor C26 is connected to one end of the fuse F3, the other end of the resistor R45, the other end of the capacitor C21, the S pole of the MOS transistor Q6, the other end of the resistor R18, the other end of the capacitor C28, and the fourth stage of the operational amplifier chip IC9. , The other end of the resistor R37, the other end of the capacitor C29 and the emitter of transistor Q5 are grounded.
所述第二运算放大电路包括电容C1，电阻R38，电阻R39，电容C12，电容C15，MOS管Q7，电阻R47，电容C22，电阻R58，电容C19，电阻R62，电阻R59，电阻R57，电阻R56，电容C17，电阻R55，电阻R54，电阻R42，电阻R400，电阻R61，三极管Q4，电阻R41和运放芯片IC6，其中，运放芯片IC6第1脚与电阻R57一端及电阻R55一端相连接，运放芯片IC6第3脚与电阻R62一端、电阻R57另一端及电阻R56一端相连接，运放芯片IC6第5脚与电阻R54一端及电阻R61一端相连接，运放芯片IC6第6脚连接电阻R55另一端，运放芯片IC6第7脚连接电阻R42一端，运放芯片IC6第8脚连接电阻R400，电阻R42另一端连接三极管Q4基极，三极管Q4集电极连接电阻R41一端，电阻R41另一端连接中央控制电路的控制芯片IC4第7脚，电阻R61另一端与电阻R400另一端、电阻 R62一端、电阻R26另一端、电阻R28另一端、电阻R48另一端、电阻R47一端及备用电池相连接，电阻R62另一端与电阻R59另一端、电容C19一端、电阻R58一端及电容C22一端相连接，电阻R56另一端连接电容C17一端，电容C22另一端与电阻R47另一端及MOS管Q7的D极相连接，MOS管Q7的G极连接电容C15一端，电容C15另一端与电容C12一端、电阻R39一端及电阻R38一端相连接，电阻R38另一端连接电容C1一端，电容C1另一端连接继电器电路的熔断器F4一端，电容C12另一端、MOS管Q7的S极、电阻R58另一端、电容C19另一端、运放芯片IC6第4脚、电阻R54另一端、电容C17另一端及三极管Q4发射极均接地。The second operational amplifier circuit comprises a capacitor C1, a resistor R38, a resistor R39, a capacitor C12, a capacitor C15, a MOS transistor Q7, a resistor R47, a capacitor C22, a resistor R58, a capacitor C19, a resistor R62, a resistor R59, a resistor R57, and a resistor R56. , capacitor C17, resistor R55, resistor R54, resistor R42, resistor R400, resistor R61, transistor Q4, resistor R41 and op amp chip IC6, wherein the first leg of the op amp IC6 is connected to one end of the resistor R57 and one end of the resistor R55. The third pin of the op amp IC6 is connected to the end of the resistor R62, the other end of the resistor R57 and the end of the resistor R56. The fifth pin of the op amp IC6 is connected with one end of the resistor R54 and one end of the resistor R61, and the sixth leg of the op amp chip IC6 is connected to the resistor. The other end of the R55, the 7th pin of the op amp IC6 is connected to the R42 end, the 8th pin of the op amp IC6 is connected to the resistor R400, the other end of the resistor R42 is connected to the base of the transistor Q4, the collector of the transistor Q4 is connected to the end of the resistor R41, and the other end of the resistor R41 The seventh chip of the control chip IC4 connected to the central control circuit, the other end of the resistor R61 and the other end of the resistor R400, the resistor One end of R62, the other end of resistor R26, the other end of resistor R28, the other end of resistor R48, one end of resistor R47 and the backup battery are connected, and the other end of resistor R62 is connected with the other end of resistor R59, one end of capacitor C19, one end of resistor R58 and one end of capacitor C22. The other end of the resistor R56 is connected to one end of the capacitor C17, the other end of the capacitor C22 is connected to the other end of the resistor R47 and the D pole of the MOS transistor Q7, the G pole of the MOS transistor Q7 is connected to the end of the capacitor C15, the other end of the capacitor C15 is connected to the end of the capacitor C12, and the resistor One end of R39 is connected to one end of resistor R38, the other end of resistor R38 is connected to one end of capacitor C1, the other end of capacitor C1 is connected to one end of fuse F4 of relay circuit, the other end of capacitor C12, the S pole of MOS tube Q7, the other end of resistor R58, capacitor C19 At the other end, the fourth pin of the operational amplifier chip IC6, the other end of the resistor R54, the other end of the capacitor C17, and the emitter of the transistor Q4 are grounded.
LED负载电路包括交流供电LED负载电路和直流供电LED负载电路，所述交流供电LED负载电路连接所述开关电源电路的输出端，直流供电LED负载电路与所述中央控制电路之间，还设有直流供电LED负载开关电路，直流供电LED负载电路通过直流供电LED负载开关电路，与中央控制电路相连接。The LED load circuit includes an AC power supply LED load circuit and a DC power supply LED load circuit, and the AC power supply LED load circuit is connected to an output end of the switching power supply circuit, and between the DC power supply LED load circuit and the central control circuit, The DC-powered LED load switch circuit, the DC-powered LED load circuit is connected to the central control circuit through a DC-powered LED load switch circuit.
所述直流供电LED负载开关电路包括电阻R25，三极管Q1，电阻R19，电阻R31，电阻R30，MOS管Q2，二极管D9，其中，所述电阻R25一端连接中央控制电路的控制芯片IC4第6脚，电阻R25另一端与电阻R19一端及三极管Q1基极相连接，三极管Q1集电极连接电阻R30一端，电阻R30另一端与电阻R31一端及MOS管Q2的G极相连接，MOS管Q2的D极连接二极管D9正极，电阻R19另一端及三极管Q1发射极均接地。The DC-powered LED load switch circuit includes a resistor R25, a transistor Q1, a resistor R19, a resistor R31, a resistor R30, a MOS transistor Q2, and a diode D9, wherein one end of the resistor R25 is connected to the sixth pin of the control chip IC4 of the central control circuit. The other end of the resistor R25 is connected to one end of the resistor R19 and the base of the transistor Q1. The collector of the transistor Q1 is connected to one end of the resistor R30, and the other end of the resistor R30 is connected to the end of the resistor R31 and the G pole of the MOS transistor Q2, and the D pole of the MOS transistor Q2 is connected. The anode of the diode D9, the other end of the resistor R19 and the emitter of the transistor Q1 are grounded.
所述开关电源电路包括变压电路，整流电路，滤波电路，电压转换电路，反馈电路和电源管理电路；其中所述反馈电路连接电源管理电路和变压电路，整流电路，电压转换电路，滤波电路均与电源管理电路相连接。The switching power supply circuit comprises a transformer circuit, a rectifier circuit, a filter circuit, a voltage conversion circuit, a feedback circuit and a power management circuit; wherein the feedback circuit is connected to the power management circuit and the transformer circuit, the rectifier circuit, the voltage conversion circuit, and the filter circuit Both are connected to a power management circuit.
本实用新型并不限于上述实施方式，凡采用与本实用新型相似 方法及结构来实现本实用新型目的的所有方式，均在本实用新型的保护范围之内。 The present invention is not limited to the above embodiments, and is similar to the present invention. All methods of the method and structure to achieve the object of the present invention are within the scope of the present invention.

Claims (9)

  1. 一种应急照明电路，其特征在于，其包括开关电源电路，备用电池、备用电池充电电路、频率信号放大电路、控制信号放大电路、继电器电路、中央控制电路和LED负载电路，其中，所述继电器电路与开关电源输出端、备用电池、交流电输入端、控制信号放大电路及中央控制电路相连接，备用电池充电电路两端分别连接开关电源输出端及备用电池，频率信号放大电路一端连接交流电输入端，另一端与所述中央控制电路相连接；所述频率信号放大电路包括第一运算放大电路和第二运算放大电路，且第一运算放大电路一端和第二运算放大电路一端分别连接交流电的火线端和零线端。An emergency lighting circuit, comprising: a switching power supply circuit, a backup battery, a backup battery charging circuit, a frequency signal amplifying circuit, a control signal amplifying circuit, a relay circuit, a central control circuit, and an LED load circuit, wherein the relay The circuit is connected with the output end of the switching power supply, the backup battery, the AC input terminal, the control signal amplifying circuit and the central control circuit, and the two ends of the backup battery charging circuit are respectively connected to the output end of the switching power supply and the backup battery, and one end of the frequency signal amplifying circuit is connected to the AC input end. The other end is connected to the central control circuit; the frequency signal amplifying circuit includes a first operational amplifier circuit and a second operational amplifier circuit, and one end of the first operational amplifier circuit and one end of the second operational amplifier circuit are respectively connected to the live line of the alternating current End and neutral ends.
  2. 根据权利要求1所述的应急照明电路，其特征在于，所述中央控制电路包括控制芯片IC4，电阻R23，电阻R33，电阻R26和电容C16，其中，所述控制芯片IC4第1脚与电阻R23一端及电容C16一端，电阻R23另一端连接备用电池正极，控制芯片IC4第4脚与电阻R33一端及电阻R16一端相连接，电阻R16另一端连接开关电源输出端，控制芯片IC4第8脚、电阻R33另一端及电容C16另一端均接地。The emergency lighting circuit of claim 1 , wherein the central control circuit comprises a control chip IC4, a resistor R23, a resistor R33, a resistor R26 and a capacitor C16, wherein the first chip of the control chip IC4 and the resistor R23 One end and one end of capacitor C16, the other end of the resistor R23 is connected to the positive pole of the backup battery, the fourth pin of the control chip IC4 is connected with one end of the resistor R33 and one end of the resistor R16, and the other end of the resistor R16 is connected to the output end of the switching power supply, the eighth chip of the control chip IC4, the resistor The other end of R33 and the other end of capacitor C16 are grounded.
  3. 根据权利要求1所述的应急照明电路，其特征在于，所述控制信号放大电路包括二极管D3，电阻R34，电阻R35，二极管D7，电容C14，电阻R22，电阻R20，电阻R17，电阻R24，电阻29，电阻R32，运放芯片IC2和电容C400，其中，所述运放芯片IC2第1脚连接电阻R24一端，电阻R24另一端连接中央控制电路的控制芯片IC4第3脚，运放芯片IC2第2脚与电阻R29一端及电阻R32一端相连接，运放芯片IC2第3脚与电阻R20一端、电阻R22一端、电容C14一端，二极管D7负极、电阻R34一端及电阻R35一端相连接，运放芯片IC2第7脚与电阻R17一端及电容C400一端相连接， 电阻R17另一端、电阻R20另一端及电阻R29另一端连接备用电池，电阻R34另一端连接二极管D3负极，电阻R35另一端、电容C14另一端，二极管D7正极、电阻R22另一端、电容C400另一端、电阻R32另一端及运放芯片IC2第4脚均接地。The emergency lighting circuit according to claim 1, wherein the control signal amplifying circuit comprises a diode D3, a resistor R34, a resistor R35, a diode D7, a capacitor C14, a resistor R22, a resistor R20, a resistor R17, a resistor R24, and a resistor. 29, a resistor R32, an op amp chip IC2 and a capacitor C400, wherein the first pin of the op amp IC2 is connected to one end of the resistor R24, and the other end of the resistor R24 is connected to the third chip of the control chip IC4 of the central control circuit, and the op amp chip IC2 The 2 pin is connected with one end of the resistor R29 and one end of the resistor R32. The third pin of the operational amplifier chip IC2 is connected with one end of the resistor R20, one end of the resistor R22, one end of the capacitor C14, the negative pole of the diode D7, one end of the resistor R34 and one end of the resistor R35. Pin 7 of IC2 is connected to one end of resistor R17 and one end of capacitor C400. The other end of the resistor R17, the other end of the resistor R20 and the other end of the resistor R29 are connected to the backup battery, the other end of the resistor R34 is connected to the cathode of the diode D3, the other end of the resistor R35, the other end of the capacitor C14, the anode of the diode D7, the other end of the resistor R22, and the other end of the capacitor C400. The other end of the resistor R32 and the fourth pin of the operational amplifier chip IC2 are grounded.
  4. 根据权利要求1所述的应急照明电路，其特征在于，所述的继电器电路包括继电器REL，熔断器F3，熔断器F4，二极管D4，电容C9和电阻R200，其中，继电器REL第1脚连接电阻R200一端，继电器REL第2脚与电容C9一端及二极管D4负极相连接，继电器REL第3脚连接熔断器F3一端，继电器REL第6脚连接熔断器F4，继电器REL第7脚连接控制信号放大电路的二极管D3正极，继电器REL第8脚及电容C9另一端接地，二极管D4正极连接备用电池，熔断器F3另一端连接交流电火线端，熔断器F4另一端连接交流电零线端。The emergency lighting circuit according to claim 1, wherein said relay circuit comprises a relay REL, a fuse F3, a fuse F4, a diode D4, a capacitor C9 and a resistor R200, wherein the relay REL pin 1 is connected to the resistor. On the R200 end, the second leg of the relay REL is connected to the end of the capacitor C9 and the negative terminal of the diode D4. The third leg of the relay REL is connected to the end of the fuse F3, the sixth leg of the relay REL is connected to the fuse F4, and the seventh leg of the relay REL is connected to the control signal amplifying circuit. The diode D3 is positive, the relay REL pin 8 and the capacitor C9 are grounded at the other end, the diode D4 is connected to the backup battery, the other end of the fuse F3 is connected to the AC line terminal, and the other end of the fuse F4 is connected to the AC line terminal.
  5. 根据权利要求1所述的应急照明电路，其特征在于，所述第一运算放大电路包括电容C26，电阻R44，电阻R45，电容C25，电容C21，MOS管Q6，电容C27，电阻R48，电阻R18，电阻R13，电容C28，电阻R49，电阻R37，电阻R28，电阻R51，电阻R26，电阻R53，电阻R46，电阻R52，电容C29，运放芯片IC9，三极管Q5和电阻R50；其中，运放芯片IC9第1脚与电阻R46一端及电阻R53一端相连接，运放芯片IC9第3脚与电阻R49一端、电阻R46另一端及电阻R52一端相连接，运放芯片IC9第5脚与电阻R37一端及电阻R28一端相连接，运放芯片IC9第6脚连接电阻R53另一端，运放芯片IC9第7脚连接电阻R51一端，运放芯片IC9第8脚连接电阻R26一端，电阻R52另一端连接电容C29一端，电阻R51另一端连接三极管Q5基极，三极管Q5集电极连接电阻R50一端，电阻R50另一端连接中央控制电路的控制芯片IC4第2脚，电阻R49另一端与电容C28一端、电阻R13一端、电阻R18一端、电容C27 一端相连接，电阻R13另一端连接电阻R48一端，电阻R48另一端与电容C27另一端及MOS管Q6的D极相连接，MOS管Q6的G极连接电容C25一端，电容C25另一端与电容C21一端、电阻R45一端及电阻R44一端相连接，电阻R44另一端连接电容C26一端，电容C26另一端连接熔断器F3一端，电阻R45另一端、电容C21另一端、MOS管Q6的S极、电阻R18另一端、电容C28另一端、运放芯片IC9第4脚、电阻R37另一端、电容C29另一端及三极管Q5发射极均接地。The emergency lighting circuit according to claim 1, wherein the first operational amplifier circuit comprises a capacitor C26, a resistor R44, a resistor R45, a capacitor C25, a capacitor C21, a MOS transistor Q6, a capacitor C27, a resistor R48, and a resistor R18. , resistor R13, capacitor C28, resistor R49, resistor R37, resistor R28, resistor R51, resistor R26, resistor R53, resistor R46, resistor R52, capacitor C29, op amp chip IC9, transistor Q5 and resistor R50; IC9 pin 1 is connected to one end of resistor R46 and one end of resistor R53. Pin 3 of op amp IC9 is connected with one end of resistor R49, the other end of resistor R46 and one end of resistor R52. The fifth pin of the op amp IC9 and the end of resistor R37 The resistor R28 is connected at one end, the 6th pin of the op amp IC9 is connected to the other end of the resistor R53, the 7th pin of the op amp IC9 is connected to the R51 end, the 8th pin of the op amp IC9 is connected to the R26 end, and the other end of the resistor R52 is connected to the capacitor C29. One end, the other end of the resistor R51 is connected to the base of the transistor Q5, the collector of the transistor Q5 is connected to the end of the resistor R50, the other end of the resistor R50 is connected to the second pin of the control chip IC4 of the central control circuit, and the other end of the resistor R49 is connected with the capacitor C28. Terminal, resistor R13, resistor R18, capacitor C27 One end is connected, the other end of the resistor R13 is connected to one end of the resistor R48, the other end of the resistor R48 is connected to the other end of the capacitor C27 and the D pole of the MOS transistor Q6, the G pole of the MOS transistor Q6 is connected to the end of the capacitor C25, the other end of the capacitor C25 and the capacitor C21 One end, one end of the resistor R45 and one end of the resistor R44 are connected, the other end of the resistor R44 is connected to one end of the capacitor C26, the other end of the capacitor C26 is connected to one end of the fuse F3, the other end of the resistor R45, the other end of the capacitor C21, the S pole of the MOS transistor Q6, and the resistor R18 The other end, the other end of the capacitor C28, the fourth pin of the operational amplifier chip IC9, the other end of the resistor R37, the other end of the capacitor C29, and the emitter of the transistor Q5 are all grounded.
  6. 根据权利要求1所述的应急照明电路，其特征在于，所述第二运算放大电路包括电容C1，电阻R38，电阻R39，电容C12，电容C15，MOS管Q7，电阻R47，电容C22，电阻R58，电容C19，电阻R62，电阻R59，电阻R57，电阻R56，电容C17，电阻R55，电阻R54，电阻R42，电阻R400，电阻R61，三极管Q4，电阻R41和运放芯片IC6，其中，运放芯片IC6第1脚与电阻R57一端及电阻R55一端相连接，运放芯片IC6第3脚与电阻R62一端、电阻R57另一端及电阻R56一端相连接，运放芯片IC6第5脚与电阻R54一端及电阻R61一端相连接，运放芯片IC6第6脚连接电阻R55另一端R57连接，运放芯片IC6第7脚连接电阻R42一端，运放芯片IC6第8脚连接电阻R400，电阻R42另一端连接三极管Q4基极，三极管Q4集电极连接电阻R41一端，电阻R41另一端连接中央控制电路的控制芯片IC4第7脚，电阻R61另一端与电阻R400另一端、电阻R62一端、电阻R26另一端、电阻R28另一端、电阻R48另一端、电阻R47一端及备用电池相连接，电阻R62另一端与电阻R59另一端、电容C19一端、电阻R58一端及电容C22一端相连接，电阻R56另一端连接电容C17一端，电容C22另一端与电阻R47另一端及MOS管Q7的D极相连接，MOS管Q7的G极连接电容C15一端，电容C15另一端与电容C12一端、电阻R39一端及电阻R38一端相连接， 电阻R38另一端连接电容C1一端，电容C1另一端连接继电器电路的熔断器F4一端，电容C12另一端、MOS管Q7的S极、电阻R58另一端、电容C19另一端、运放芯片IC6第4脚、电阻R54另一端、电容C17另一端及三极管Q4发射极均接地。The emergency lighting circuit according to claim 1, wherein the second operational amplifier circuit comprises a capacitor C1, a resistor R38, a resistor R39, a capacitor C12, a capacitor C15, a MOS transistor Q7, a resistor R47, a capacitor C22, and a resistor R58. , capacitor C19, resistor R62, resistor R59, resistor R57, resistor R56, capacitor C17, resistor R55, resistor R54, resistor R42, resistor R400, resistor R61, transistor Q4, resistor R41 and op amp chip IC6, where the op amp chip The first leg of IC6 is connected with one end of resistor R57 and one end of resistor R55. The third pin of the operational amplifier chip IC6 is connected with one end of the resistor R62, the other end of the resistor R57 and one end of the resistor R56, and the fifth pin of the operational amplifier chip IC6 and the end of the resistor R54 and The resistor R61 is connected at one end, the 6th pin of the op amp IC6 is connected to the R57 of the other end of the resistor R55, the 7th pin of the op amp IC6 is connected to the R42 end, the 8th pin of the op amp IC6 is connected to the resistor R400, and the other end of the resistor R42 is connected to the triode. Q4 base, transistor Q4 collector is connected to one end of resistor R41, the other end of resistor R41 is connected to the 7th pin of the control chip IC4 of the central control circuit, the other end of the resistor R61 and the other end of the resistor R400, the end of the resistor R62, the resistor R26 One end, the other end of the resistor R28, the other end of the resistor R48, the end of the resistor R47 and the backup battery are connected, the other end of the resistor R62 is connected to the other end of the resistor R59, the end of the capacitor C19, the end of the resistor R58 and the end of the capacitor C22, and the other end of the resistor R56 is connected. One end of capacitor C17, the other end of capacitor C22 is connected to the other end of resistor R47 and the D pole of MOS transistor Q7. The G pole of MOS transistor Q7 is connected to one end of capacitor C15, the other end of capacitor C15 is connected with one end of capacitor C12, one end of resistor R39 and one end of resistor R38. Connected, The other end of the resistor R38 is connected to one end of the capacitor C1, the other end of the capacitor C1 is connected to the end of the fuse F4 of the relay circuit, the other end of the capacitor C12, the S pole of the MOS transistor Q7, the other end of the resistor R58, the other end of the capacitor C19, and the fourth stage of the operational amplifier chip IC6 The other end of the pin, the resistor R54, the other end of the capacitor C17, and the emitter of the transistor Q4 are both grounded.
  7. 根据权利要求1所述的应急照明电路，其特征在于，LED负载电路包括交流供电LED负载电路和直流供电LED负载电路，所述交流供电LED负载电路连接所述开关电源电路的输出端，直流供电LED负载电路与所述中央控制电路之间，还设有直流供电LED负载开关电路，直流供电LED负载电路通过直流供电LED负载开关电路，与中央控制电路相连接。The emergency lighting circuit according to claim 1, wherein the LED load circuit comprises an AC power supply LED load circuit and a DC power supply LED load circuit, wherein the AC power supply LED load circuit is connected to an output end of the switching power supply circuit, and the DC power supply is provided. A DC-powered LED load switch circuit is further disposed between the LED load circuit and the central control circuit, and the DC-powered LED load circuit is connected to the central control circuit through a DC-powered LED load switch circuit.
  8. 根据权利要求7所述的应急照明电路，其特征在于，所述直流供电LED负载开关电路包括电阻R25，三极管Q1，电阻R19，电阻R31，电阻R30，MOS管Q2，二极管D9，其中，所述电阻R25一端连接中央控制电路的控制芯片IC4第6脚，电阻R25另一端与电阻R19一端及三极管Q1基极相连接，三极管Q1集电极连接电阻R30一端，电阻R30另一端与电阻R31一端及MOS管Q2的G极相连接，MOS管Q2的D极连接二极管D9正极，电阻R19另一端及三极管Q1发射极均接地。The emergency lighting circuit according to claim 7, wherein the DC-powered LED load switch circuit comprises a resistor R25, a transistor Q1, a resistor R19, a resistor R31, a resistor R30, a MOS transistor Q2, and a diode D9. One end of the resistor R25 is connected to the sixth chip of the control chip IC4 of the central control circuit, and the other end of the resistor R25 is connected with one end of the resistor R19 and the base of the transistor Q1, the collector of the transistor Q1 is connected to one end of the resistor R30, the other end of the resistor R30 is connected with the end of the resistor R31 and the MOS. The G pole of the tube Q2 is connected, the D pole of the MOS transistor Q2 is connected to the anode of the diode D9, the other end of the resistor R19 and the emitter of the transistor Q1 are grounded.
  9. 根据权利要求1所述的应急照明电路，其特征在于，所述开关电源电路包括变压电路、整流电路、滤波电路、电压转换电路、反馈电路和电源管理电路；其中所述反馈电路连接电源管理电路和变压电路，整流电路、电压转换电路、滤波电路均与电源管理电路相连接。 The emergency lighting circuit of claim 1 , wherein the switching power supply circuit comprises a transformer circuit, a rectifier circuit, a filter circuit, a voltage conversion circuit, a feedback circuit, and a power management circuit; wherein the feedback circuit is connected to the power management The circuit and the transformer circuit, the rectifier circuit, the voltage conversion circuit, and the filter circuit are all connected to the power management circuit.
PCT/CN2014/093243 2014-11-21 2014-12-08 Emergency lighting circuit WO2016078166A1 (en)

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CN108810743A (en) * 2018-08-17 2018-11-13 江苏恒创软件有限公司 Audio collection circuit for equipment operational diagnostics instrument
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CN111371159A (en) * 2020-04-16 2020-07-03 长春工程学院 Mobile phone wireless charging transmitting system with constant-power constant-current working mode
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