CN210137473U - Driving circuit of emergency lighting lamp - Google Patents
Driving circuit of emergency lighting lamp Download PDFInfo
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- CN210137473U CN210137473U CN201920766157.3U CN201920766157U CN210137473U CN 210137473 U CN210137473 U CN 210137473U CN 201920766157 U CN201920766157 U CN 201920766157U CN 210137473 U CN210137473 U CN 210137473U
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Abstract
The utility model discloses a driving circuit of an emergency lighting lamp, aiming at solving the problems of unsafety and high manufacturing cost caused by the switching mode of a primary high-voltage front end hard jumper wire in the existing emergency lighting lamp, comprising a zero line end N, a fire line end L, a fuse wire resistor RF, a piezoresistor RV, a fuse wire F1, a rectifier bridge, a power switch circuit, a transformer T1, a driving module and a lamp module; the transformer T1 comprises a first secondary output end and a second secondary output end; the driving module comprises a diode D1, a transistor Q1, a transistor Q2, a resistor R4, a resistor R21, a switch SW, a charging management testing module, a battery unit and an emergency control circuit. The utility model discloses a set up switch SW's mode in the drive module in secondary low pressure rear end, realized the switching of continuation and non-continuation lighting system under the commercial power more safe and reliable ground, still reduced manufacturing cost simultaneously.
Description
Technical Field
The utility model relates to a power field, particularly, the utility model relates to an emergency lighting lamp's drive circuit.
Background
An emergency lighting lamp is a general term for lamps for emergency lighting, and is generally applied to emergency lighting, emergency exit signs, light emitting diodes and the like. Under the mains supply, when the existing emergency illuminating lamp is switched between the continuous illumination working state and the non-continuous illumination working state, a primary high-voltage front-end hard jumper switching mode is mostly adopted, and the switching mode under high voltage not only easily causes power utilization accidents, but also improves the manufacturing cost.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems of unsafety and high manufacturing cost caused by the mode of switching the hard jumper wire of the primary high-voltage front end in the existing emergency lighting lamp, the utility model provides a switching safety and low cost emergency lighting lamp driving circuit.
In order to achieve the above object, the present invention provides a driving circuit of an emergency lighting lamp, which includes a zero line end N connected to a zero line of a mains supply, a live line end L connected to a live line of the mains supply, a fuse resistor RF, a voltage dependent resistor RV, a fuse F1, a rectifier bridge, a power switch circuit connected to the rectifier bridge, a transformer T1, a driving module, and a lamp module connected to the driving module; one end of the fuse resistor RF is connected with the zero line end N, the other end of the fuse resistor RF is connected with one end of the piezoresistor RV, the other end of the piezoresistor RV is connected with one end of the fuse F1, and the other end of the fuse F1 is connected with the live wire end L; a first input end of the rectifier bridge is connected to the connection position of the fuse resistor RF and the piezoresistor RV, a second input end of the rectifier bridge is connected to the connection position of the fuse F1 and the piezoresistor RV, and an output end of the rectifier bridge is connected with the power switch circuit; the power switch circuit is connected with the primary end of the transformer T1, and the driving module is connected with the secondary end of the transformer T1;
the transformer T1 comprises a first secondary output end and a second secondary output end;
the driving module comprises a diode D1, a transistor Q1, a transistor Q2, a resistor R4, a resistor R21, a switch SW, a charging management testing module, a battery unit connected with the charging management testing module and an emergency control circuit connected with the battery unit; the emergency control circuit is connected with the lamp bead module; the anode of the diode D1 is connected to the first secondary output terminal, the cathode of the diode D1 is connected to the emitter of the transistor Q1, the base of the transistor Q1 is connected to the charging management test module, the collector of the transistor Q1 is connected to the emitter of the transistor Q2, the base of the transistor Q2 is connected to one end of the resistor R21, the other end of the resistor R21 is connected to one end of the switch SW, the other end of the switch SW is connected to the digital ground GND, the collector of the transistor Q2 is connected to the anode of the diode D5, and the cathode of the diode D5 is connected to the lamp bead module.
Preferably, the charging management test module comprises a capacitor C1, a capacitor C2, a capacitor C3, a resistor R1, a resistor R5, a resistor R6, a resistor R7, a resistor R10, a resistor R11, a resistor R12, a test switch KC, a transistor Q7, a transistor Q3, a transistor Q4 and a three-terminal regulator QD,
the anode of the capacitor C1 is connected with the cathode of the diode D1, and the cathode of the capacitor C1 is connected with the digital ground GND;
one end of the capacitor C2 is connected with the cathode of the diode D1, and the other end of the capacitor C2 is connected with a digital ground GND;
the anode of the capacitor C3 is connected with the collector of the transistor Q1, and the cathode of the capacitor C3 is connected with the digital ground GND;
one end of the resistor R5 is connected with the emitter of the transistor Q1, and the other end of the resistor R5 is connected with the base of the transistor Q7; one end of the resistor R6 is connected with the base of the transistor Q1, the other end of the resistor R5 is connected with the collector of the transistor Q7, and the emitter of the transistor Q7 is connected with the digital ground GND; one end of the resistor R1 is connected to the connection point of the resistor R5 and the transistor Q1, and the other end of the resistor R1 is connected to the connection point of the resistor R6 and the transistor Q1; one end of the resistor R10 is connected at the connection of the resistor R5 and the transistor Q7, and the other end of the resistor R10 is connected with a digital ground GND;
one end of the test switch KC is connected with the base of the transistor Q7, and the other end of the test switch KC is connected with a digital ground GND;
the collector of the transistor Q3 is connected to the connection of the transistor Q1 and the transistor Q2, the emitter of the transistor Q3 is connected to the base of the transistor Q4, the base of the transistor Q3 is connected to the collector of the transistor Q4, the emitter of the transistor Q4 is connected to one end of the resistor R12, the other end of the resistor R12 is connected to one end of the resistor R11, and the other end of the resistor R11 is connected to the digital ground GND;
one end of the resistor R7 is connected with the collector of the transistor Q3, and the other end of the resistor R7 is connected with the collector of the transistor Q4;
one end of the resistor R2 is connected with the emitter of the transistor Q3, and the other end of the resistor R2 is connected with the emitter of the transistor Q4;
the control end K of the three-terminal regulator QD is connected with the connection position of the base electrode of the transistor Q3 and the collector electrode of the transistor Q4, the sampling end R of the three-terminal regulator QD is connected with the connection position of the resistor R12 and the resistor R11, and the grounding end A of the three-terminal regulator QD is connected with the digital ground GND.
Preferably, the battery unit includes a diode D2, a resistor R9, a resistor R8, a resistor R13, a transistor Q5, a battery pack BTA, a light emitting diode LED for indicating a charge state of the battery pack BTA, and a fuse F2, wherein,
the anode of the diode D2 is connected with the emitter of the transistor Q4, the cathode of the diode D2 is connected with one end of the fuse F2, the other end of the fuse F2 is connected with the anode of the battery BTA, and the cathode of the battery BTA is connected with the digital ground GND;
one end of the resistor R8 is connected to the connection point of the diode D2 and the fuse F2, and the other end is connected to the base electrode of the transistor Q5; the emitter of the transistor Q5 is connected with the anode of the diode D2, the collector of the transistor Q5 is connected with one end of the resistor R13, the other end of the resistor R13 is connected with the anode of the light-emitting diode LED, and the cathode of the light-emitting diode LED is connected with the digital ground GND;
one end of the resistor R9 is connected to the connection between the emitter of the transistor Q5 and the anode of the diode D2, and the other end is connected to the connection between the resistor R8 and the base of the transistor Q5.
Preferably, the emergency control circuit comprises a transistor Q6, a transistor Q8, a transistor Q9, a transistor Q10, a capacitor C4, a capacitor C5, a diode D3, a diode D4, a resistor R3, a resistor R15, a resistor R16, a resistor R17, a resistor R18, a resistor R19, a resistor R20, a resistor R22, a resistor R23 and a resistor R24, wherein,
the anode of the diode D3 is connected to the collector of the transistor Q1, the cathode of the diode D3 is connected to the anode of the capacitor C4, and the cathode of the capacitor C4 is connected to the digital ground GND;
one end of the resistor R15 is connected with the cathode of the diode D3, the other end of the resistor R15 is connected with one end of the resistor R14, and the other end of the resistor R14 is connected with a digital ground GND; the base of the transistor Q8 is connected with the connection position of the resistor R15 and the resistor R14, the collector of the transistor Q8 is connected with the base of the transistor Q9, and the emitter of the transistor Q8 is connected with the digital ground GND;
one end of the resistor R16 is connected with the cathode of the diode D3, and the other end of the resistor R16 is connected with the connection position of the collector of the transistor Q8 and the base of the transistor Q9; one end of the resistor R17 is connected with the connection position of the collector of the transistor Q8 and the base of the transistor Q9, and the other end is connected with a digital ground GND;
one end of the resistor R3 is connected to the connection point of the cathode of the diode D2 and one end of the fuse F2, the other end of the resistor R3 is connected to one end of the resistor R18, and the other end of the resistor R18 is connected to the collector of the transistor Q9; the base of the transistor Q9 is connected with one end of the capacitor C5, and the other end of the capacitor C5 is connected with a digital ground GND;
one end of the resistor R19 is connected to the connection position of the other end of the resistor R18 and the collector of the transistor Q9, the other end of the resistor R19 is connected with the base of the transistor Q6, the emitter of the transistor Q6 is connected with the collector of the transistor Q10, and the collector of the transistor Q6 is connected with the lamp bead module; the base of the transistor Q10 is connected to the connection point of the resistor R3 and the resistor R18, and the emitter of the transistor Q10 is connected to the connection point of the cathode of the diode D2 and one end of the fuse F2;
one end of the resistor R20 is connected with the base of the transistor Q6, and the other end of the resistor R20 is connected with the connection position of the emitter of the transistor Q6 and the collector of the transistor Q10; one end of the resistor R22 is connected with the other end of the resistor R20, the other end of the resistor R22 is connected with one end of the resistor R24, and the other end of the resistor R24 is connected with a digital ground GND;
the anode of the diode D4 is connected to the connection point of the resistor R22 and the resistor R24, the cathode of the diode D4 is connected to one end of the resistor R23, and the other end of the resistor R23 is connected to the connection point of the capacitor C5 and the base of the transistor Q9.
Preferably, the power switch circuit comprises a master control chip U1, and the model of the master control chip U1 is LN1F 15.
Preferably, the transformer T1 includes a first primary input, a second primary input, a third primary input, and a fourth primary input; the power switch circuit further comprises an inductor L1, a resistor R25, a resistor R26, a resistor R27, a resistor R28, a resistor R29, a resistor R30, a resistor R31, a resistor R32, a resistor R33, a resistor R34, a resistor R35, a resistor R36, a capacitor C6, a capacitor C7, a capacitor C8, a capacitor C9, a capacitor C10, a capacitor C11, a capacitor C12, a diode D6, a diode D7, a diode D8, a diode D9, a field effect transistor Q11, a field effect transistor Q12 and a digital PGND, wherein,
the positive electrode of the capacitor C6 is connected with the positive output end of the rectifier bridge, and the negative electrode of the capacitor C6 is connected with a digital ground PGND;
one end of the inductor L1 is connected to the positive electrode of the capacitor C6, the other end of the inductor L1 is connected to the first primary input end of the transformer T1, and the resistor R25 is connected in parallel to the inductor L1;
the positive electrode of the capacitor C7 is connected to the connection point of the inductor L1 and the first primary input terminal, and the negative electrode of the capacitor C7 is connected to the digital ground PGND;
the anode of the diode D6 is connected to the connection point of the inductor L1 and the first primary input terminal, the cathode of the diode D6 is connected to the anode of the capacitor C8, and the cathode of the capacitor C8 is connected to the digital ground PGND;
one end of the resistor R26 is connected to the connection point of the diode D6 and the capacitor C8, the other end of the resistor R26 is connected to one end of the resistor R27, and the other end of the resistor R27 is connected to a digital ground PGND; the capacitor C9 is connected in parallel with the resistor R27;
the gate of the field effect transistor Q12 is connected to the connection point of the resistor R26 and the resistor R27, the source of the field effect transistor Q12 is grounded, the drain of the field effect transistor Q12 is connected to the gate of the field effect transistor Q11, the source of the field effect transistor Q11 is connected to one end of the resistor R29, the other end of the resistor R29 is connected to the connection point of the resistor R26 and the resistor R27, and the drain of the field effect transistor Q11 is connected to the voltage end Vdd of the main control chip U1;
one end of the resistor R28 is connected with the connection position of the drain electrode of the field effect transistor Q12 and the grid electrode of the field effect transistor Q11, and the other end of the resistor R28 is connected with the connection position of the drain electrode of the field effect transistor Q11 and the voltage end Vdd of the main control chip U1;
one end of the resistor R36 is connected to the connection position of the inductor L1 and the first primary input end, and the other end of the resistor R36 is connected to the connection position of the drain electrode of the field effect transistor Q11 and the voltage end Vdd of the main control chip U1;
one end of the resistor R31 is connected with the connection position of the resistor R29 and the field effect transistor Q11, the other end of the resistor R31 is connected with the anode of the diode D7, and the cathode of the diode D7 is connected with the voltage terminal Vss of the main control chip U1;
the positive electrode of the capacitor C10 is connected with the voltage end Vdd of the main control chip U1, and the negative electrode of the capacitor C10 is connected with the digital ground PGND; one end of the resistor R32 is connected with the anode of the capacitor C10, the other end of the resistor R32 is connected with the cathode of the diode D8, and the anode of the diode D8 is connected with the third primary input end of the transformer T1;
one end of the resistor R33 is connected with the connection position of the cathode of the diode D7 and the voltage terminal Vss of the master control chip U1, and the other end of the resistor R33 is connected with the third primary input end of the transformer T1; one end of the resistor R34 is connected to one end of the resistor R33, the other end of the resistor R34 is connected to the fourth primary input terminal of the transformer T1, and the fourth primary input terminal of the transformer T1 is connected to the digital ground PGND;
the selection end CS of the main control chip U1 is connected with a digital ground PGND through the resistor R30;
one end of the capacitor C11 is connected with the drain end D of the main control chip U1, and the other end of the capacitor C11 is connected with the connection position of the inductor L1 and the first primary input end;
the resistor R35 is connected in parallel with the capacitor C12, one end of the parallel resistor R35 and one end of the parallel capacitor C12 are connected to the connection position of the inductor L1 and the first primary input end, and the other end of the parallel resistor R35 and one end of the parallel capacitor C12 are connected to the negative electrode of the diode D9; the anode of the diode D9 is connected to the second primary input of the transformer T1.
Preferably, the digital ground GND and the digital ground PGND are connected through a capacitor CV.
Compared with the prior art, the utility model relates to an emergency lighting's drive circuit has following beneficial effect:
the utility model relates to a drive circuit of emergency lighting lamp has realized the switching of continuation and non-continuation lighting system under the commercial power more safely and reliably through the mode that sets up switch SW in the drive module in secondary low pressure rear end, has still reduced manufacturing cost simultaneously.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic diagram of an overall structure of a driving circuit of an emergency lighting lamp according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a power switch circuit in a driving circuit of an emergency lighting lamp according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a connection structure between a digital ground GND and a digital ground PGND in a driving circuit of an emergency lighting lamp according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.
Referring to fig. 1-2, an embodiment of the present invention provides a driving circuit of an emergency lighting lamp, which includes a zero line end N connected to a zero line of a mains supply, a live line end L connected to a live line of the mains supply, a fuse resistor RF, a varistor RV, a fuse F1, a rectifier bridge 200, a power switch circuit 400 connected to the rectifier bridge 200, a transformer T1, a driving module, and a lamp module 600 connected to the driving module, wherein one end of the fuse resistor RF is connected to the zero line end N, the other end of the fuse resistor RF is connected to one end of the varistor RV, the other end of the varistor RV is connected to one end of a fuse F1, and the other end of the fuse F1 is connected to the live line end L; a first input end of the rectifier bridge 200 is connected to the connection position of the fuse resistor RF and the piezoresistor RV, a second input end of the rectifier bridge 200 is connected to the connection position of the fuse F1 and the piezoresistor RV, and an output end of the rectifier bridge 200 is connected with the power switch circuit 400; the power switch circuit 400 is connected to the primary side of the transformer T1, and the driving module is connected to the secondary side of the transformer T1.
In some embodiments, the transformer T1 includes a first primary input 1, a second primary input 2, a third primary input 3, a fourth primary input 4, a first secondary output 5, a second secondary output 6, wherein the transformer T1 is connected to the power switch circuit 400 through the first primary input 1, the second primary input 2, the third primary input 3, and the fourth primary input 4; the transformer T1 is connected to the driver module via a first secondary output 5 and a second secondary output 6.
The driving module comprises a diode D1, a transistor Q1, a transistor Q2, a resistor R4, a resistor R21, a switch SW, a charging management testing module 101, a battery unit 103 connected with the charging management testing module 101, and an emergency control circuit 105 connected with the battery unit 103, wherein the emergency control circuit 105 is connected with the lamp bead module 600; the anode of the diode D1 is connected to the first secondary output terminal 5, the cathode of the diode D1 is connected to the emitter of the transistor Q1, the base of the transistor Q1 is connected to the charging management test module 101, the collector of the transistor Q1 is connected to the emitter of the transistor Q2, the base of the transistor Q2 is connected to one end of the resistor R21, the other end of the resistor R21 is connected to one end of the switch SW, the other end of the switch SW is connected to the digital ground GND, the collector of the transistor Q2 is connected to the anode of the diode D5, and the cathode of the diode D5 is connected to the lamp bead module 600.
The charging management test module 101 comprises a capacitor C1, a capacitor C2, a capacitor C3, a resistor R1, a resistor R5, a resistor R6, a resistor R7, a resistor R10, a resistor R11, a resistor R12, a test switch KC, a transistor Q7, a transistor Q3, a transistor Q4 and a three-terminal regulator QD, wherein,
the anode of the capacitor C1 is connected with the cathode of the diode D1, and the cathode of the capacitor C1 is connected with the digital ground GND;
one end of the capacitor C2 is connected with the cathode of the diode D1, and the other end of the capacitor C2 is connected with the digital ground GND;
the positive electrode of the capacitor C3 is connected with the collector of the transistor Q1, and the negative electrode of the capacitor C3 is connected with the digital ground GND;
one end of the resistor R5 is connected with the emitter of the transistor Q1, and the other end of the resistor R5 is connected with the base of the transistor Q7; one end of the resistor R6 is connected with the base of the transistor Q1, the other end of the resistor R5 is connected with the collector of the transistor Q7, and the emitter of the transistor Q7 is connected with the digital ground GND; one end of the resistor R1 is connected with the connection part of the resistor R5 and the transistor Q1, and the other end of the resistor R1 is connected with the connection part of the resistor R6 and the transistor Q1; one end of the resistor R10 is connected with the connection part of the resistor R5 and the transistor Q7, and the other end of the resistor R10 is connected with the digital ground GND;
one end of the test switch KC is connected with the base of the transistor Q7, and the other end of the test switch KC is connected with the digital ground GND;
the collector of the transistor Q3 is connected to the connection point of the transistor Q1 and the transistor Q2, the emitter of the transistor Q3 is connected to the base of the transistor Q4, the base of the transistor Q3 is connected to the collector of the transistor Q4, the emitter of the transistor Q4 is connected to one end of the resistor R12, the other end of the resistor R12 is connected to one end of the resistor R11, and the other end of the resistor R11 is connected to the digital ground GND;
one end of the resistor R7 is connected with the collector of the transistor Q3, and the other end of the resistor R7 is connected with the collector of the transistor Q4;
one end of the resistor R2 is connected with the emitter of the transistor Q3, and the other end of the resistor R2 is connected with the emitter of the transistor Q4;
the control end K of the three-terminal regulator QD is connected with the connection position of the base electrode of the transistor Q3 and the collector electrode of the transistor Q4, the sampling end R of the three-terminal regulator QD is connected with the connection position of the resistor R12 and the resistor R11, and the digital ground GND end A of the three-terminal regulator QD is connected with the digital ground GND.
The battery cell 103 includes a diode D2, a resistor R9, a resistor R8, a resistor R13, a transistor Q5, a battery BTA, a light emitting diode LED for indicating a charge state of the battery BTA, and a fuse F2, wherein,
the anode of the diode D2 is connected with the emitter of the transistor Q4, the cathode of the diode D2 is connected with one end of a fuse F2, the other end of the fuse F2 is connected with the anode of a battery BTA, and the cathode of the battery BTA is connected with the digital ground GND;
one end of the resistor R8 is connected with the connection part of the diode D2 and the fuse F2, and the other end is connected with the base electrode of the transistor Q5; an emitter of the transistor Q5 is connected with the anode of the diode D2, a collector of the transistor Q5 is connected with one end of the resistor R13, the other end of the resistor R13 is connected with the anode of the light-emitting diode LED, and the cathode of the light-emitting diode LED is connected with the digital ground GND;
one end of the resistor R9 is connected to the junction of the emitter of the transistor Q5 and the anode of the diode D2, and the other end is connected to the junction of the resistor R8 and the base of the transistor Q5.
The emergency control circuit 105 includes a transistor Q6, a transistor Q8, a transistor Q9, a transistor Q10, a capacitor C4, a capacitor C5, a diode D3, a diode D4, a resistor R3, a resistor R15, a resistor R16, a resistor R17, a resistor R18, a resistor R19, a resistor R20, a resistor R22, a resistor R23, and a resistor R24, wherein,
the anode of the diode D3 is connected with the collector of the transistor Q1, the cathode of the diode D3 is connected with the anode of the capacitor C4, and the cathode of the capacitor C4 is connected with the digital ground GND;
one end of the resistor R15 is connected with the cathode of the diode D3, the other end of the resistor R15 is connected with one end of the resistor R14, and the other end of the resistor R14 is connected with the digital ground GND; the base of the transistor Q8 is connected with the connection position of the resistor R15 and the resistor R14, the collector of the transistor Q8 is connected with the base of the transistor Q9, and the emitter of the transistor Q8 is connected with the digital ground GND;
one end of the resistor R16 is connected with the cathode of the diode D3, and the other end is connected with the connection position of the collector of the transistor Q8 and the base of the transistor Q9; one end of the resistor R17 is connected with the connection position of the collector of the transistor Q8 and the base of the transistor Q9, and the other end is connected with the digital ground GND;
one end of the resistor R3 is connected with the connection position of the cathode of the diode D2 and one end of the fuse F2, the other end of the resistor R18 is connected with one end of the resistor R18, and the other end of the resistor R18 is connected with the collector of the transistor Q9; the base of the transistor Q9 is connected with one end of the capacitor C5, and the other end of the capacitor C5 is connected with the digital ground GND;
one end of the resistor R19 is connected with the connection position of the other end of the resistor R18 and the collector of the transistor Q9, the other end of the resistor R19 is connected with the base of the transistor Q6, the emitter of the transistor Q6 is connected with the collector of the transistor Q10, and the collector of the transistor Q6 is connected with the lamp bead module 600; the base electrode of the transistor Q10 is connected with the connection part of the resistor R3 and the resistor R18, and the emitter electrode of the transistor Q10 is connected with the connection part of the cathode of the diode D2 and one end of the fuse F2;
one end of the resistor R20 is connected with the base electrode of the transistor Q6, and the other end of the resistor R20 is connected with the connection part of the emitter electrode of the transistor Q6 and the collector electrode of the transistor Q10; one end of the resistor R22 is connected with the other end of the resistor R20, the other end of the resistor R22 is connected with one end of the resistor R24, and the other end of the resistor R24 is connected with a digital ground GND;
the anode of the diode D4 is connected to the connection point of the resistor R22 and the resistor R24, the cathode of the diode D4 is connected to one end of the resistor R23, and the other end of the resistor R23 is connected to the connection point of the capacitor C5 and the base of the transistor Q9.
In order to facilitate understanding, the embodiment of the present invention provides a charging management test module 101, a battery unit 103 and an emergency control circuit 105 in a driving circuit of an emergency lighting lamp, and its working principle is briefly described below:
under the mains supply, transistor Q8 switches on, and transistor Q9, transistor Q10 cut off, and the electric energy is provided to lamp pearl module 600 behind the current through transistor Q1, transistor Q2. Meanwhile, the switch SW can control the lamp bead module 600 to switch between two working states of continuous lighting and non-continuous lighting. In addition, the battery BTA is charged for standby through a transistor Q3 for constant current, a transistor Q4 and a three-terminal regulator QD for constant voltage during commercial power.
When the commercial power can not supply power, the transistor Q10 is automatically changed from the cut-off state to the conducting state, and then the power supply for the lamp bead module 600 is realized.
It is worth noting that the embodiment of the utility model provides a for the convenience circuit detects, has still introduced test switch KC at the secondary, when the test, only needs to press test switch KC can realize the detection of circuit.
In some embodiments, the power switch circuit 400 includes a main control chip U1, an inductor L1, a resistor R25, a resistor R26, a resistor R27, a resistor R28, a resistor R29, a resistor R30, a resistor R31, a resistor R32, a resistor R33, a resistor R34, a resistor R35, a resistor R36, a capacitor C6, a capacitor C7, a capacitor C8, a capacitor C9, a capacitor C10, a capacitor C11, a capacitor C12, a diode D6, a diode D7, a diode D8, a diode D9, a fet Q11, a fet Q12, and a digital PGND, wherein,
the anode of the capacitor C6 is connected with the positive output end of the rectifier bridge 200, and the cathode of the capacitor C6 is connected with the digital ground PGND;
one end of an inductor L1 is connected with the positive electrode of a capacitor C6, the other end of the inductor L1 is connected with a first primary input end 1 of a transformer T1, and a resistor R25 is connected with the inductor L1 in parallel;
the positive electrode of the capacitor C7 is connected to the connection point of the inductor L1 and the first primary input terminal 1, and the negative electrode of the capacitor C7 is connected to the digital ground PGND;
the anode of the diode D6 is connected to the junction of the inductor L1 and the first primary input terminal 1, the cathode is connected to the anode of the capacitor C8, and the cathode of the capacitor C8 is connected to the digital ground PGND;
one end of the resistor R26 is connected to the connection point of the diode D6 and the capacitor C8, the other end of the resistor R26 is connected to one end of the resistor R27, and the other end of the resistor R27 is connected to a digital ground PGND; the capacitor C9 is connected with the resistor R27 in parallel;
the grid electrode of the field-effect tube Q12 is connected with the connection position of the resistor R26 and the resistor R27, the source electrode is grounded, the drain electrode is connected with the grid electrode of the field-effect tube Q11, the source electrode of the field-effect tube Q11 is connected with one end of the resistor R29, the other end of the resistor R29 is connected with the connection position of the resistor R26 and the resistor R27, and the drain electrode of the field-effect tube Q11 is connected with the voltage end Vdd of the main control chip U1;
one end of the resistor R28 is connected with the connection position of the drain electrode of the field effect transistor Q12 and the grid electrode of the field effect transistor Q11, and the other end of the resistor R28 is connected with the connection position of the drain electrode of the field effect transistor Q11 and the voltage end Vdd of the main control chip U1;
one end of the resistor R36 is connected to the connection of the inductor L1 and the first primary input end 1, and the other end is connected to the connection of the drain of the field effect transistor Q11 and the voltage end Vdd of the main control chip U1;
one end of the resistor R31 is connected with the connection position of the resistor R29 and the field effect transistor Q11, the other end of the resistor R31 is connected with the anode of the diode D7, and the cathode of the diode D7 is connected with the voltage end Vss of the main control chip U1;
the positive electrode of the capacitor C10 is connected with the voltage end Vdd of the main control chip U1, and the negative electrode of the capacitor C10 is connected with the digital ground PGND; one end of the resistor R32 is connected with the anode of the capacitor C10, the other end of the resistor R32 is connected with the cathode of the diode D8, and the anode of the diode D8 is connected with the third primary input end 3 of the transformer T1;
one end of the resistor R33 is connected with the connection position of the cathode of the diode D7 and the voltage terminal Vss of the main control chip U1, and the other end is connected with the third primary input end 3 of the transformer T1; one end of the resistor R34 is connected to one end of the resistor R33, the other end of the resistor R34 is connected to the fourth primary input terminal 4 of the transformer T1, and the fourth primary input terminal 4 of the transformer T1 is connected to the digital ground PGND;
the selection end CS of the main control chip U1 is connected with a digital ground PGND through a resistor R30;
one end of a capacitor C11 is connected with the drain end D of the main control chip U1, and the other end of the capacitor C11 is connected with the connection position of the inductor L1 and the first primary input end 1;
the resistor R35 is connected in parallel with the capacitor C12, one end of the parallel resistor R35 and the parallel capacitor C12 is connected to the connection position of the inductor L1 and the first primary input end 1, the other end of the parallel resistor R35 and the parallel capacitor C12 is connected with the cathode of the diode D9, and the anode of the diode D9 is connected with the second primary input end 2 of the transformer T1.
Preferably, the model of the main control chip U1 is LN1F 15. The model number of the three-terminal regulator QD is TL 431.
Referring to fig. 3, in some embodiments, the digital ground GND and the digital ground PGND are connected through a capacitor CV.
Compared with the prior art, the embodiment of the utility model provides an emergency lighting's drive circuit has following beneficial effect:
the embodiment of the utility model provides an emergency lighting lamp's drive circuit has realized the switching of continuation and non-continuation lighting system under the commercial power more safe and reliable's mode through set up switch SW in the drive module in secondary low pressure rear end, has still reduced manufacturing cost simultaneously.
The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The driving circuit of the emergency lighting lamp is characterized by comprising a zero line end N connected with a mains supply zero line, a live line end L connected with a mains supply live line, a fuse resistor RF, a piezoresistor RV, a fuse F1, a rectifier bridge, a power switch circuit connected with the rectifier bridge, a transformer T1, a driving module and a lamp bead module connected with the driving module; one end of the fuse resistor RF is connected with the zero line end N, the other end of the fuse resistor RF is connected with one end of the piezoresistor RV, the other end of the piezoresistor RV is connected with one end of the fuse F1, and the other end of the fuse F1 is connected with the live wire end L; a first input end of the rectifier bridge is connected to the connection position of the fuse resistor RF and the piezoresistor RV, a second input end of the rectifier bridge is connected to the connection position of the fuse F1 and the piezoresistor RV, and an output end of the rectifier bridge is connected with the power switch circuit; the power switch circuit is connected with the primary end of the transformer T1, and the driving module is connected with the secondary end of the transformer T1;
the transformer T1 comprises a first secondary output end and a second secondary output end;
the driving module comprises a diode D1, a transistor Q1, a transistor Q2, a resistor R4, a resistor R21, a switch SW, a charging management testing module, a battery unit connected with the charging management testing module and an emergency control circuit connected with the battery unit; the emergency control circuit is connected with the lamp bead module; the anode of the diode D1 is connected to the first secondary output terminal, the cathode of the diode D1 is connected to the emitter of the transistor Q1, the base of the transistor Q1 is connected to the charging management test module, the collector of the transistor Q1 is connected to the emitter of the transistor Q2, the base of the transistor Q2 is connected to one end of the resistor R21, the other end of the resistor R21 is connected to one end of the switch SW, the other end of the switch SW is connected to the digital ground GND, the collector of the transistor Q2 is connected to the anode of the diode D5, and the cathode of the diode D5 is connected to the lamp bead module.
2. The emergency lighting driving circuit according to claim 1, wherein the charging management test module comprises a capacitor C1, a capacitor C2, a capacitor C3, a resistor R1, a resistor R5, a resistor R6, a resistor R7, a resistor R10, a resistor R11, a resistor R12, a test switch KC, a transistor Q7, a transistor Q3, a transistor Q4 and a three-terminal regulator QD, wherein,
the anode of the capacitor C1 is connected with the cathode of the diode D1, and the cathode of the capacitor C1 is connected with the digital ground GND;
one end of the capacitor C2 is connected with the cathode of the diode D1, and the other end of the capacitor C2 is connected with a digital ground GND;
the anode of the capacitor C3 is connected with the collector of the transistor Q1, and the cathode of the capacitor C3 is connected with the digital ground GND;
one end of the resistor R5 is connected with the emitter of the transistor Q1, and the other end of the resistor R5 is connected with the base of the transistor Q7; one end of the resistor R6 is connected with the base of the transistor Q1, the other end of the resistor R5 is connected with the collector of the transistor Q7, and the emitter of the transistor Q7 is connected with the digital ground GND; one end of the resistor R1 is connected to the connection point of the resistor R5 and the transistor Q1, and the other end of the resistor R1 is connected to the connection point of the resistor R6 and the transistor Q1; one end of the resistor R10 is connected at the connection of the resistor R5 and the transistor Q7, and the other end of the resistor R10 is connected with a digital ground GND;
one end of the test switch KC is connected with the base of the transistor Q7, and the other end of the test switch KC is connected with a digital ground GND;
the collector of the transistor Q3 is connected to the connection of the transistor Q1 and the transistor Q2, the emitter of the transistor Q3 is connected to the base of the transistor Q4, the base of the transistor Q3 is connected to the collector of the transistor Q4, the emitter of the transistor Q4 is connected to one end of the resistor R12, the other end of the resistor R12 is connected to one end of the resistor R11, and the other end of the resistor R11 is connected to the digital ground GND;
one end of the resistor R7 is connected with the collector of the transistor Q3, and the other end of the resistor R7 is connected with the collector of the transistor Q4;
one end of the resistor R2 is connected with the emitter of the transistor Q3, and the other end of the resistor R2 is connected with the emitter of the transistor Q4;
the control end K of the three-terminal regulator QD is connected with the connection position of the base electrode of the transistor Q3 and the collector electrode of the transistor Q4, the sampling end R of the three-terminal regulator QD is connected with the connection position of the resistor R12 and the resistor R11, and the grounding end A of the three-terminal regulator QD is connected with the digital ground GND.
3. The driving circuit of emergency lighting according to claim 2, wherein the battery unit includes a diode D2, a resistor R9, a resistor R8, a resistor R13, a transistor Q5, a battery pack BTA, a light emitting diode LED for indicating a charge state of the battery pack BTA, and a fuse F2, wherein,
the anode of the diode D2 is connected with the emitter of the transistor Q4, the cathode of the diode D2 is connected with one end of the fuse F2, the other end of the fuse F2 is connected with the anode of the battery BTA, and the cathode of the battery BTA is connected with the digital ground GND;
one end of the resistor R8 is connected to the connection point of the diode D2 and the fuse F2, and the other end is connected to the base electrode of the transistor Q5; the emitter of the transistor Q5 is connected with the anode of the diode D2, the collector of the transistor Q5 is connected with one end of the resistor R13, the other end of the resistor R13 is connected with the anode of the light-emitting diode LED, and the cathode of the light-emitting diode LED is connected with the digital ground GND;
one end of the resistor R9 is connected to the connection between the emitter of the transistor Q5 and the anode of the diode D2, and the other end is connected to the connection between the resistor R8 and the base of the transistor Q5.
4. The emergency lighting driving circuit according to claim 3, wherein the emergency control circuit comprises a transistor Q6, a transistor Q8, a transistor Q9, a transistor Q10, a capacitor C4, a capacitor C5, a diode D3, a diode D4, a resistor R3, a resistor R15, a resistor R16, a resistor R17, a resistor R18, a resistor R19, a resistor R20, a resistor R22, a resistor R23, and a resistor R24, wherein,
the anode of the diode D3 is connected to the collector of the transistor Q1, the cathode of the diode D3 is connected to the anode of the capacitor C4, and the cathode of the capacitor C4 is connected to the digital ground GND;
one end of the resistor R15 is connected with the cathode of the diode D3, the other end of the resistor R15 is connected with one end of the resistor R14, and the other end of the resistor R14 is connected with a digital ground GND; the base of the transistor Q8 is connected with the connection position of the resistor R15 and the resistor R14, the collector of the transistor Q8 is connected with the base of the transistor Q9, and the emitter of the transistor Q8 is connected with the digital ground GND;
one end of the resistor R16 is connected with the cathode of the diode D3, and the other end of the resistor R16 is connected with the connection position of the collector of the transistor Q8 and the base of the transistor Q9; one end of the resistor R17 is connected with the connection position of the collector of the transistor Q8 and the base of the transistor Q9, and the other end is connected with a digital ground GND;
one end of the resistor R3 is connected to the connection point of the cathode of the diode D2 and one end of the fuse F2, the other end of the resistor R3 is connected to one end of the resistor R18, and the other end of the resistor R18 is connected to the collector of the transistor Q9; the base of the transistor Q9 is connected with one end of the capacitor C5, and the other end of the capacitor C5 is connected with a digital ground GND;
one end of the resistor R19 is connected to the connection position of the other end of the resistor R18 and the collector of the transistor Q9, the other end of the resistor R19 is connected with the base of the transistor Q6, the emitter of the transistor Q6 is connected with the collector of the transistor Q10, and the collector of the transistor Q6 is connected with the lamp bead module; the base of the transistor Q10 is connected to the connection point of the resistor R3 and the resistor R18, and the emitter of the transistor Q10 is connected to the connection point of the cathode of the diode D2 and one end of the fuse F2;
one end of the resistor R20 is connected with the base of the transistor Q6, and the other end of the resistor R20 is connected with the connection position of the emitter of the transistor Q6 and the collector of the transistor Q10; one end of the resistor R22 is connected with the other end of the resistor R20, the other end of the resistor R22 is connected with one end of the resistor R24, and the other end of the resistor R24 is connected with a digital ground GND;
the anode of the diode D4 is connected to the connection point of the resistor R22 and the resistor R24, the cathode of the diode D4 is connected to one end of the resistor R23, and the other end of the resistor R23 is connected to the connection point of the capacitor C5 and the base of the transistor Q9.
5. The emergency lighting lamp driving circuit according to claim 4, wherein the power switch circuit comprises a main control chip U1, and the main control chip U1 is LN1F 15.
6. The emergency lighting lamp driving circuit according to claim 5, wherein the transformer T1 includes a first primary input terminal, a second primary input terminal, a third primary input terminal, and a fourth primary input terminal; the power switch circuit further comprises an inductor L1, a resistor R25, a resistor R26, a resistor R27, a resistor R28, a resistor R29, a resistor R30, a resistor R31, a resistor R32, a resistor R33, a resistor R34, a resistor R35, a resistor R36, a capacitor C6, a capacitor C7, a capacitor C8, a capacitor C9, a capacitor C10, a capacitor C11, a capacitor C12, a diode D6, a diode D7, a diode D8, a diode D9, a field effect transistor Q11, a field effect transistor Q12 and a digital PGND, wherein,
the positive electrode of the capacitor C6 is connected with the positive output end of the rectifier bridge, and the negative electrode of the capacitor C6 is connected with a digital ground PGND;
one end of the inductor L1 is connected to the positive electrode of the capacitor C6, the other end of the inductor L1 is connected to the first primary input end of the transformer T1, and the resistor R25 is connected in parallel to the inductor L1;
the positive electrode of the capacitor C7 is connected to the connection point of the inductor L1 and the first primary input terminal, and the negative electrode of the capacitor C7 is connected to the digital ground PGND;
the anode of the diode D6 is connected to the connection point of the inductor L1 and the first primary input terminal, the cathode of the diode D6 is connected to the anode of the capacitor C8, and the cathode of the capacitor C8 is connected to the digital ground PGND;
one end of the resistor R26 is connected to the connection point of the diode D6 and the capacitor C8, the other end of the resistor R26 is connected to one end of the resistor R27, and the other end of the resistor R27 is connected to a digital ground PGND; the capacitor C9 is connected in parallel with the resistor R27;
the gate of the field effect transistor Q12 is connected to the connection point of the resistor R26 and the resistor R27, the source of the field effect transistor Q12 is grounded, the drain of the field effect transistor Q12 is connected to the gate of the field effect transistor Q11, the source of the field effect transistor Q11 is connected to one end of the resistor R29, the other end of the resistor R29 is connected to the connection point of the resistor R26 and the resistor R27, and the drain of the field effect transistor Q11 is connected to the voltage end Vdd of the main control chip U1;
one end of the resistor R28 is connected with the connection position of the drain electrode of the field effect transistor Q12 and the grid electrode of the field effect transistor Q11, and the other end of the resistor R28 is connected with the connection position of the drain electrode of the field effect transistor Q11 and the voltage end Vdd of the main control chip U1;
one end of the resistor R36 is connected to the connection position of the inductor L1 and the first primary input end, and the other end of the resistor R36 is connected to the connection position of the drain electrode of the field effect transistor Q11 and the voltage end Vdd of the main control chip U1;
one end of the resistor R31 is connected with the connection position of the resistor R29 and the field effect transistor Q11, the other end of the resistor R31 is connected with the anode of the diode D7, and the cathode of the diode D7 is connected with the voltage terminal Vss of the main control chip U1;
the positive electrode of the capacitor C10 is connected with the voltage end Vdd of the main control chip U1, and the negative electrode of the capacitor C10 is connected with the digital ground PGND; one end of the resistor R32 is connected with the anode of the capacitor C10, the other end of the resistor R32 is connected with the cathode of the diode D8, and the anode of the diode D8 is connected with the third primary input end of the transformer T1;
one end of the resistor R33 is connected with the connection position of the cathode of the diode D7 and the voltage terminal Vss of the master control chip U1, and the other end of the resistor R33 is connected with the third primary input end of the transformer T1; one end of the resistor R34 is connected to one end of the resistor R33, the other end of the resistor R34 is connected to the fourth primary input terminal of the transformer T1, and the fourth primary input terminal of the transformer T1 is connected to the digital ground PGND;
the selection end CS of the main control chip U1 is connected with a digital ground PGND through the resistor R30;
one end of the capacitor C11 is connected with the drain end D of the main control chip U1, and the other end of the capacitor C11 is connected with the connection position of the inductor L1 and the first primary input end;
the resistor R35 is connected in parallel with the capacitor C12, one end of the parallel resistor R35 and one end of the parallel capacitor C12 are connected to the connection position of the inductor L1 and the first primary input end, and the other end of the parallel resistor R35 and one end of the parallel capacitor C12 are connected to the negative electrode of the diode D9; the anode of the diode D9 is connected to the second primary input of the transformer T1.
7. The emergency lighting lamp driving circuit according to claim 6, wherein the digital ground GND and the digital ground PGND are connected through a capacitor CV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920766157.3U CN210137473U (en) | 2019-05-24 | 2019-05-24 | Driving circuit of emergency lighting lamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920766157.3U CN210137473U (en) | 2019-05-24 | 2019-05-24 | Driving circuit of emergency lighting lamp |
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| CN210137473U true CN210137473U (en) | 2020-03-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110087377A (en) * | 2019-05-24 | 2019-08-02 | 柏宜照明（上海）股份有限公司 | A kind of driving circuit of emergency light |
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2019
- 2019-05-24 CN CN201920766157.3U patent/CN210137473U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110087377A (en) * | 2019-05-24 | 2019-08-02 | 柏宜照明（上海）股份有限公司 | A kind of driving circuit of emergency light |
| CN110087377B (en) * | 2019-05-24 | 2024-06-04 | 柏宜照明（上海）股份有限公司 | Driving circuit of emergency lighting lamp |
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