CN215956683U - Emergency ceiling lamp circuit device - Google Patents
Emergency ceiling lamp circuit device Download PDFInfo
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- CN215956683U CN215956683U CN202121797574.8U CN202121797574U CN215956683U CN 215956683 U CN215956683 U CN 215956683U CN 202121797574 U CN202121797574 U CN 202121797574U CN 215956683 U CN215956683 U CN 215956683U
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Abstract
The utility model provides an emergency ceiling lamp circuit device which comprises an alternating current power supply module, an electromagnetic compatibility circuit module, a rectification filter circuit module, an RC absorption circuit module, an output rectification circuit module, a first high-frequency transformer, an output current sampling resistor circuit module, a common-mode inductor, a charging management circuit module, a power supply maintaining circuit module, a constant current control circuit module and a voltage feedback loop circuit module, wherein the voltage feedback loop circuit module is connected with the output rectification circuit module and the constant current control circuit module. The emergency ceiling lamp circuit device provided by the utility model can keep the voltage storage of the power supply circuit module, so that the emergency ceiling lamp can be continuously lightened under the condition of power failure.
Description
Technical Field
The utility model belongs to the technical field of circuit modules, and particularly relates to an emergency ceiling lamp circuit device.
Background
The emergency ceiling lamp is a general name of a lamp for emergency lighting, and the fire-fighting emergency lighting system mainly comprises emergency lighting, an emergency exit sign and an indicator lamp, and is arranged for guiding trapped people to evacuate or developing fire-fighting rescue actions after a normal lighting source is cut off when a fire disaster occurs.
Therefore, the practicability and the emergency of the emergency ceiling lamp are necessary to be ensured.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an emergency ceiling lamp circuit device which realizes good practicability and emergency response.
The utility model provides an emergency ceiling lamp circuit device which comprises an alternating current power supply module, an electromagnetic compatibility circuit module, a rectification filter circuit module, an RC absorption circuit module, an output rectification circuit module, a first high-frequency transformer, an output current sampling resistance circuit module, a common-mode inductor, a positive light-emitting signal and a negative light-emitting signal, a charging management circuit module, a maintaining power supply circuit module, a rectifying circuit module, a negative light-emitting signal and a rectifying power supply circuit module, wherein the electromagnetic compatibility circuit module and the rectification filter circuit module are connected with two ends of the alternating current power supply module, the RC absorption circuit module is connected with the rectification filter circuit module, the output rectification circuit module is connected with the rectification filter circuit module, the first high-frequency transformer is positioned between the RC absorption circuit module and the output rectification circuit module, the output current sampling resistance circuit module is connected with the output rectification filter circuit module, the common-mode inductor is connected with the output rectification circuit module and the output current sampling resistance circuit module, the positive light-emitting signal and the negative light-emitting signal are connected with the common-mode inductor, the charging management circuit module is connected with the rectifying power supply circuit module, the rectifying circuit module and the rectifying circuit module, The constant current control circuit module and the voltage feedback loop circuit module are connected with the output rectifying circuit module, and the voltage feedback loop circuit module is connected with the output rectifying circuit module and the constant current control circuit module; the illuminating LED lamp panel comprises a main lamp and a small night lamp; the alternating current power supply module, the electromagnetic compatibility circuit module, the rectification filter circuit module, the RC absorption circuit module, the first high-frequency transformer, the output rectification circuit module, the output current sampling resistor circuit module, the common mode inductor, the positive luminescent signal, the negative luminescent signal, the charge management circuit module and the maintenance power supply circuit module form an isolation driver, and the positive luminescent signal and the negative luminescent signal of the isolation driver are connected with a main lamp of the illumination LED lamp panel; the constant current control circuit module and the voltage feedback loop circuit module form an emergency control system, and the voltage feedback loop circuit module of the emergency control system is connected with a small night lamp of the LED lamp panel.
Preferably, the electromagnetic compatibility circuit module comprises a first piezoresistor and a first capacitor which are connected in parallel.
Preferably, the rectifying and filtering circuit module includes a first bridge rectifier diode and a second electrolytic capacitor connected to the first bridge rectifier diode, the first bridge rectifier diode has a first pin, a second pin, a third pin and a fourth pin which are connected in sequence, the first pin and the third pin of the first bridge rectifier diode are connected to two ends of the ac power module, the fourth pin of the first bridge rectifier diode and a negative electrode of the second electrolytic capacitor are both grounded, and the second pin of the first bridge rectifier diode is connected to a positive electrode of the second electrolytic capacitor.
Preferably, the RC absorbing circuit module includes a second resistor, a third capacitor and a second diode, and the second resistor, the third resistor and the third capacitor are connected in parallel and connected between the second pin of the first bridge rectifier diode and the cathode of the second diode; the first high-frequency transformer comprises a first winding and a second winding, the upper end of the first winding of the first high-frequency transformer is connected with one end of a second resistor, one end of a third resistor and one end of a third capacitor, the other end of the second resistor, the other end of the third resistor and the other end of the third capacitor are connected with the cathode of a second diode, and the lower end of the first winding of the first high-frequency transformer is connected with the anode of the second diode.
Preferably, the output rectification circuit module comprises a third diode, a fourth electrolytic capacitor and a fourth resistor, the fourth electrolytic capacitor and the fourth resistor are connected in parallel, one end of the fourth electrolytic capacitor and one end of the fourth resistor are both connected with the negative electrode of the third diode, the positive electrode of the third diode is connected with the upper end of the second winding of the first high-frequency transformer, and the other end of the fourth electrolytic capacitor, the other end of the fourth resistor and the lower end of the second winding of the common-mode inductor are all connected with a common end.
Preferably, the output current sampling resistor circuit module includes a fifth resistor and a sixth resistor connected in parallel, one end of the fifth resistor and one end of the sixth resistor are both connected to the lower end of the second winding of the first high-frequency transformer, and the other ends of the fifth resistor and the sixth resistor are both grounded.
Preferably, the charging management circuit module includes a seventh starting resistor, an eighth starting resistor, a driving chip, an optocoupler feedback circuit, a ninth resistor and a tenth resistor, wherein the driving chip has 8 pins, two identical pins of the driving chip are connected with the anode of the second diode, one of the pins of the driving chip is connected with one end of the ninth resistor and one end of the tenth resistor, one of the pins of the driving chip, the other end of the ninth resistor and the other end of the tenth resistor are grounded, and the second pin of the first bridge rectifier diode sequentially connects the seventh starting resistor and the eighth starting resistor to one of the pins of the driving chip; one of them pin and the opto-coupler feedback circuit one end of driver chip are connected, and opto-coupler feedback circuit other end ground connection, one of them pin of driver chip with maintain the power supply circuit module and be connected.
Preferably, the power supply circuit module comprises a sixth electrolytic capacitor, an eleventh resistor, a fourth diode, a second transformer and a seventh safety capacitor; the second transformer is provided with a winding, the upper end of the winding of the second transformer is connected with the anode of the fourth diode, the lower end of the winding of the second transformer and the cathode of the sixth electrolytic capacitor are grounded, the anode of the sixth electrolytic capacitor and one end of the eleventh resistor are both connected with one pin of the driving chip of the charging management circuit module, the other end of the eleventh resistor is connected with the cathode of the fourth diode, one end of the seventh safety capacitor is grounded, and the other end of the seventh safety capacitor is connected with the common terminal.
Preferably, the constant current control circuit module comprises a twelfth resistor, a thirteenth resistor, a fourteenth resistor, an eighth capacitor, a driving chip, a ninth capacitor, a fifteenth resistor, a sixteenth resistor, a seventeenth resistor, a tenth capacitor and an eleventh electrolytic capacitor; the driving chip is provided with 6 pins from the first pin to the sixth pin; one end of a twelfth resistor is connected with the cathode of a third diode of the output rectifying circuit module, the other end of the twelfth resistor is connected with one end of a fourteenth resistor, and the other end of the fourteenth resistor is grounded; the second pin of the driving chip is grounded, the first pins of the driving chip are connected with the part between the twelfth resistor and the fourteenth resistor and one end of an eighth capacitor, one end of a thirteenth resistor is connected with the other end of the eighth capacitor, the third pins of the driving chip are connected with the other end of the thirteenth resistor, the voltage feedback loop circuit module and one end of a ninth capacitor, the other end of the ninth capacitor is connected with one end of a fifteenth resistor, the fifth pin of the driving chip is connected with the other end of the fifteenth resistor and one end of a seventeenth resistor, the other end of the seventeenth resistor is grounded, the fourth pin of the driving chip is connected with one end of a sixteenth resistor, and the other end of the sixteenth resistor is connected with a common end; and a sixth pin of the driving chip is connected with one end of a tenth capacitor, the anode of the eleventh electrolytic capacitor and the voltage feedback loop circuit module, the tenth capacitor is connected with one end of a seventeenth resistor and is grounded, and the cathode of the eleventh electrolytic capacitor is connected with a common end.
Preferably, the voltage feedback loop circuit module comprises a light emitting diode, an eighteenth resistor, a triode, a nineteenth resistor, a twentieth resistor and a fifth zener diode; the negative electrode of the light emitting diode is connected with the third pin of the driving chip of the constant current control circuit module, the positive electrode of the light emitting diode is connected with one end of the thirteenth resistor, the source electrode of the triode is connected with the other end of the thirteenth resistor and the sixth pin of the driving chip of the constant current control circuit module, the nineteenth resistor and the twelfth resistor are connected between the drain electrode of the triode and the grid electrode of the triode, the negative electrode of the third diode of the output rectifying circuit module is also connected between the nineteenth resistor and the twelfth resistor, the grid electrode of the triode is also connected with the negative electrode of the fifth voltage stabilizing diode, and the positive electrode of the fifth voltage stabilizing diode is connected with the public end.
The emergency ceiling lamp circuit device provided by the utility model can keep the voltage storage of the power supply circuit module, so that the emergency ceiling lamp can be continuously lightened under the condition of power failure.
Drawings
The present invention will be further described in the following detailed description of preferred embodiments, which is to be read in connection with the accompanying drawings.
FIG. 1 is a schematic structural diagram of an emergency ceiling lamp circuit device according to the present invention;
FIG. 2 is a schematic structural diagram of an AC power supply module, an electromagnetic compatibility circuit module and a rectification filter circuit module of the emergency ceiling lamp circuit device according to the utility model;
FIG. 3 is a schematic structural diagram of an RC absorption circuit module, an output rectification circuit module and an output current sampling resistor circuit module of the emergency ceiling lamp circuit device according to the present invention;
FIG. 4 is a schematic structural diagram of a charging management circuit module and a maintaining power supply circuit module of the emergency ceiling lamp circuit device according to the present invention;
fig. 5 is a schematic structural diagram of a constant current control circuit module and a voltage feedback loop circuit module of the emergency ceiling lamp circuit device according to the present invention.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the utility model, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".
The technical solution of the present invention is described in detail with specific examples below.
As shown in FIG. 1, the emergency ceiling lamp circuit device of the utility model comprises an AC power supply module 11, an electromagnetic compatibility circuit module 12 and a rectification filter circuit module 13 connected with two ends of the AC power supply module 11, an RC absorption circuit module 14 connected with the rectification filter circuit module 13, an output rectification circuit module 15, a first high-frequency transformer T1 positioned between the RC absorption circuit module 14 and the output rectification circuit module 15, an output current sampling resistance circuit module 16 connected with the output rectification circuit module 15, a common mode inductor L connected with the output rectification circuit module 15 and the output current sampling resistance circuit module 16, a positive light emitting signal LED + and a negative light emitting signal LED + connected with the common mode inductor L, and a lighting LED lamp panel (not shown) connected with the positive light emitting signal LED + and the negative light emitting signal LED-respectively, The charging management circuit module 21 is connected with the rectifying and filtering circuit module 13 and the RC absorption circuit module 14, the power supply maintaining circuit module 22 is connected with the charging management circuit module 21, the constant current control circuit module 23 is connected with the output rectifying circuit module 15, and the voltage feedback loop circuit module 24 is connected with the output rectifying circuit module 15 and the constant current control circuit module 23.
The first high-frequency transformer T1 is a switching power supply high-frequency transformer, and functions to convert voltage.
The common mode inductor L is reserved for design and mainly plays a role in inhibiting switching noise, and the current switching noise is within an allowable range, so that the device is omitted.
Of course, the common mode inductor L ensures that both the positive light emitting signal LED + and the negative light emitting signal LED-are normally connected to the output rectifying circuit module 15 and the sampling resistor circuit module 16.
As shown in fig. 2, the ac power supply module 11 includes an ac source INPUT and a fuse F connected to a power line ACL of the ac source INPUT.
The electromagnetic compatibility circuit module 12 comprises a first voltage dependent resistor TNR1 and a first capacitor CX1 which are connected in parallel.
The rectifying and filtering circuit module 13 includes a first bridge rectifier diode D1 and a second electrolytic capacitor C2 connected to the first bridge rectifier diode D1, the first bridge rectifier diode D1 has a first pin, a second pin, a third pin and a fourth pin connected in sequence, the first pin and the third pin of the first bridge rectifier diode D1 are connected to two ends of the ac power module 11, the fourth pin of the first bridge rectifier diode D1 and the cathode of the second electrolytic capacitor C2 are both grounded, and the second pin of the first bridge rectifier diode D1 is connected to the anode of the second electrolytic capacitor C2.
As shown in fig. 3, the RC absorption circuit module 14 includes a second resistor R2, a third resistor R3, a third capacitor C3 and a second diode D2, wherein the second resistor R2, the third resistor R3 and the third capacitor C3 are connected in parallel and between the second leg of the first bridge rectifier diode D1 and the cathode of the second diode D2.
The first high-frequency transformer T1 includes a first winding disposed close to the RC absorption circuit module 14 and a second winding close to the output rectification circuit module 15, the upper end of the first winding of the first high-frequency transformer T1 is connected to one end of a second resistor R2, one end of a third resistor R3 and one end of a third capacitor C3, the other end of the second resistor R2, the other end of the third resistor R3 and the other end of the third capacitor C3 are connected to the negative electrode of a second diode D2, and the lower end of the first winding of the first high-frequency transformer T1 is connected to the positive electrode of the second diode D2.
The output rectifying circuit module 15 comprises a third diode D3, a fourth electrolytic capacitor C4 and a fourth resistor R4, the fourth electrolytic capacitor C4 and the fourth resistor R4 are connected in parallel, one end of the fourth electrolytic capacitor C4 and one end of the fourth resistor R4 are both connected with the negative electrode of the third diode D3, the positive electrode of the third diode D3 is connected with the upper end of the second winding of the first high-frequency transformer T1, and the other end of the fourth electrolytic capacitor C4, the other end of the fourth resistor R4 and the lower end of the second winding of the common mode inductor L are all connected with the common terminal GND. The output current sampling resistor circuit module 16 comprises a fifth resistor R5 and a sixth resistor R6 which are connected in parallel, one end of the fifth resistor R5 and one end of the sixth resistor R6 are both connected with the lower end of the second winding of the first high-frequency transformer T1, and the other end of the fifth resistor R5 and the other end of the sixth resistor R6 are both grounded.
The common mode inductor L also comprises a first winding and a second winding, the upper end of the first winding of the common mode inductor L is connected with the negative electrode of the third diode D3, the lower end of the first winding of the common mode inductor L is grounded, the upper end of the second winding of the common mode inductor L is connected with a positive light-emitting signal LED +, and the lower end of the second winding of the common mode inductor L is connected with a negative light-emitting signal LED-.
The upper end of a first winding of the first high-frequency transformer T1 is connected with one end of a second resistor R2, one end of a third resistor R3 and one end of a third capacitor C3, the other end of the second resistor R2, the other end of the third resistor R3 and the other end of the third capacitor C3 are connected with the negative electrode of a second diode D2, and the lower end of the first winding of the first high-frequency transformer T1 is connected with the positive electrode of a second diode D2.
As shown in fig. 4, the charging management circuit module 21 includes a seventh starting resistor R7, an eighth starting resistor R8, a driving chip U1, an optocoupler feedback circuit 210, a ninth resistor R9, and a tenth resistor R10. The driving chip U1 has 8 pins, two same pins HV of the driving chip U1 are connected to the anode of the second diode D2, one pin IS of the driving chip U1 IS connected to one end of the ninth resistor R9 and one end of the tenth resistor R10, one pin GND of the driving chip U1, the other end of the ninth resistor R9 and the other end of the tenth resistor R10 are grounded, and the second pin of the first bridge rectifier diode D1 IS connected to one pin VST of the driving chip U1 through the seventh starting resistor R7 and the eighth starting resistor R8 in sequence; one of the pins FB of the driver chip U1 is connected to one end of the optical coupler feedback circuit 210, the other end of the optical coupler feedback circuit 210 is grounded, and one of the pins VCC of the driver chip U1 is connected to the maintenance power supply circuit module 22.
The optocoupler feedback circuit 210 comprises a fifth capacitor C5 and a phototransistor U2B which are connected in parallel, one end of the fifth capacitor C5 and the anode of the phototransistor U2B are both connected with one of the pins of the driving chip U1, and the other end of the fifth capacitor C5 and the cathode of the phototransistor U2B are grounded.
The maintenance power supply circuit module 22 includes a sixth electrolytic capacitor C6, an eleventh resistor R11, a fourth diode D4, a second transformer T2, and a seventh safety capacitor C7. The second transformer T2 has a winding, the upper end of the winding of the second transformer T2 is connected to the anode of the fourth diode D4, the lower end of the winding of the second transformer T2 and the cathode of the sixth electrolytic capacitor C6 are grounded, the anode of the sixth electrolytic capacitor C6 and one end of the eleventh resistor R11 are both connected to one of the pins VCC of the driving chip U1 of the charge management circuit module 21, the other end of the eleventh resistor R11 is connected to the cathode of the fourth diode D4, one end of the seventh safety capacitor C7 is grounded, and the other end of the seventh safety capacitor C7 is connected to the common terminal GND.
The second transformer T2 is a primary feedback winding of the first high frequency transformer T1, and the second transformer T2 is used to provide a sustained operating voltage to the driver chip U2.
As shown in fig. 5, the constant current control circuit module 23 includes a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, an eighth capacitor C8, a driving chip U2, a ninth capacitor C9, a fifteenth resistor R15, a sixteenth resistor R16, a seventeenth resistor R17, a tenth capacitor C10, and an eleventh electrolytic capacitor C11. The driver chip U2 has 6 pins (first pin to sixth pin, respectively).
One end of a twelfth resistor R12 is connected with the cathode of the third diode D3 of the output rectifying circuit module 15, the other end of the twelfth resistor R12 is connected with one end of a fourteenth resistor R14, and the other end of the fourteenth resistor R14 is grounded; the second pin of the driving chip U2 is grounded, the first pin of the driving chip U2 is connected between the twelfth resistor R12 and the fourteenth resistor R14 and one end of the eighth capacitor C8, one end of the thirteenth resistor R13 is connected with the other end of the eighth capacitor C8, the third pin of the driving chip U2 is connected with the other end of the thirteenth resistor R13, one ends of the voltage feedback loop circuit module 24 and the ninth capacitor C9, the other end of the ninth capacitor C9 is connected with one end of the fifteenth resistor R15, the fifth pin of the driving chip U2 is connected with the other end of the fifteenth resistor R15 and one end of the seventeenth resistor R17, the other end of the seventeenth resistor R17 is grounded, the fourth pin of the driving chip U2 is connected with one end of the sixteenth resistor R16, and the other end of the sixteenth resistor R16 is connected with the common terminal GND; the sixth pin of the driving chip U2 is connected to one end of a tenth capacitor C10, the positive electrode of an eleventh electrolytic capacitor C11, and the voltage feedback loop circuit module 24, the tenth capacitor C10 is connected to one end of a seventeenth resistor R17 and grounded, and the negative electrode of the eleventh electrolytic capacitor C11 is connected to the common terminal GND.
The voltage feedback loop circuit module 24 includes a light emitting diode U2A, an eighteenth resistor R18, a transistor Q, a nineteenth resistor R19, a twentieth resistor R20, and a fifth zener diode D5. The negative electrode of the light emitting diode U2A is connected to the third pin of the driving chip U2 of the constant current control circuit module 23, the positive electrode of the light emitting diode U2A is connected to one end of a thirteenth resistor R13, the sources of the transistors Q are connected to the other end of the thirteenth resistor R13 and the sixth pin of the driving chip U2 of the constant current control circuit module 23, a nineteenth resistor R19 and a twelfth resistor R20 are connected between the drains of the transistors Q and the gates of the transistors Q, the negative electrode of the third diode of the output rectifying circuit module 15 is connected between the nineteenth resistor R19 and the twelfth resistor R20, the gates of the transistors Q are connected to the negative electrode of a fifth voltage regulator diode D5, and the positive electrode of the fifth voltage regulator D5 is connected to the common terminal GND.
The illuminating LED light panel includes a main light (not shown) and a small night light (not shown).
The isolation driver comprises an alternating current power supply module 11, an electromagnetic compatibility circuit module 12, a rectification filter circuit module 13, an RC absorption circuit module 14, a first high-frequency transformer T1, an output rectification circuit module 15, an output current sampling resistance circuit module 16, a common-mode inductor L, a positive light-emitting signal, a negative light-emitting signal, a charging management circuit module 21 and a maintaining power supply circuit module 22. The positive light-emitting signal and the negative light-emitting signal of the isolation driver are connected with the main lamp of the illumination LED lamp panel, the isolation driver provides constant voltage and current for the main lamp of the illumination LED lamp panel, and at the moment, the small night lamp of the LED lamp panel is not turned on.
The charging management circuit module 21 is a driving chip of the isolated driver, and the sustain power supply circuit module 22 is a sustain operating voltage winding of the driving chip of the isolated driver.
The constant current control circuit module 23 and the voltage feedback loop circuit module 24 form an emergency control system, and the voltage feedback loop circuit module 24 of the emergency control system is connected with a small night lamp of the lighting LED lamp panel. When power is cut off, the isolation driver stops working, and the small night lamp of the LED lamp panel is powered and lightened through the maintaining power supply circuit module 22.
When the commercial power is available, the small night lamp is automatically disconnected from the power maintaining circuit module 22, and the power maintaining circuit module 22 is automatically charged to be full and automatically stopped; when there is no commercial power for a long time, the mobile power supply (not shown) can be used to supplement power to the maintenance power supply circuit module 22 through the TYPE-C port (not shown) via the charging management circuit module 21, so as to prolong the lighting time of the small night light.
The emergency ceiling lamp circuit device enables the small night lamp to be lightened under the condition of power failure by maintaining the power supply circuit module to store voltage, and has practicability and emergency.
It should be noted that the above embodiments can be freely combined as necessary. The above description is only a preferred embodiment of the present invention, but the present invention is not limited to the details of the above embodiment, and it should be noted that, for those skilled in the art, it is possible to make various modifications and alterations without departing from the principle of the present invention, and it should be understood that these modifications, alterations and equivalents should be regarded as the protection scope of the present invention.
Claims (10)
1. The emergency ceiling lamp circuit device comprises an alternating current power supply module (11), and is characterized by further comprising an electromagnetic compatibility circuit module (12) and a rectification filter circuit module (13) which are connected with two ends of the alternating current power supply module (11), an RC absorption circuit module (14) connected with the rectification filter circuit module (13), an output rectification circuit module (15), a first high-frequency transformer (T1) positioned between the RC absorption circuit module (14) and the output rectification circuit module (15), an output current sampling resistance circuit module (16) connected with the output rectification circuit module (15), a common mode inductor (L) connected with the output rectification circuit module (15) and the output current sampling resistance circuit module (16), a positive luminescent signal and a negative luminescent signal which are connected with the common mode inductor (L), and a negative luminescent signal, The LED lamp panel comprises a charging management circuit module (21) connected with the rectifying and filtering circuit module (13) and an RC absorption circuit module (14), a maintaining and power supplying circuit module (22) connected with the charging management circuit module (21), a constant current control circuit module (23) connected with the output rectifying circuit module (15), a voltage feedback loop circuit module (24) and a lighting LED lamp panel, wherein the voltage feedback loop circuit module (24) is connected with the output rectifying circuit module (15) and the constant current control circuit module (23); the illuminating LED lamp panel comprises a main lamp and a small night lamp; the LED lamp panel comprises an alternating current power supply module (11), an electromagnetic compatibility circuit module (12), a rectification filter circuit module (13), an RC absorption circuit module (14), a first high-frequency transformer (T1), an output rectification circuit module (15), an output current sampling resistance circuit module (16), a common-mode inductor (L), a positive luminescent signal, a negative luminescent signal, a charge management circuit module (21) and a maintenance power supply circuit module (22) which form an isolation driver, wherein the positive luminescent signal and the negative luminescent signal of the isolation driver are connected with a main lamp of the illumination LED lamp panel; the constant current control circuit module (23) and the voltage feedback loop circuit module (24) form an emergency control system, and the voltage feedback loop circuit module (24) of the emergency control system is connected with a small night lamp of the LED lamp panel.
2. The emergency ceiling lamp circuit arrangement according to claim 1, wherein the electromagnetic compatibility circuit module (12) comprises a first voltage dependent resistor and a first capacitor connected in parallel.
3. The emergency ceiling lamp circuit device according to claim 1, wherein the rectifier filter circuit module (13) comprises a first bridge rectifier diode and a second electrolytic capacitor connected with the first bridge rectifier diode, the first bridge rectifier diode has a first pin, a second pin, a third pin and a fourth pin which are connected in sequence, the first pin and the third pin of the first bridge rectifier diode are connected to two ends of the alternating current power supply module (11), the fourth pin of the first bridge rectifier diode and a negative electrode of the second electrolytic capacitor are both grounded, and the second pin of the first bridge rectifier diode is connected with a positive electrode of the second electrolytic capacitor.
4. The emergency ceiling lamp circuit device according to claim 3, wherein the RC absorption circuit module (14) comprises a second resistor, a third capacitor and a second diode, and the second resistor, the third resistor and the third capacitor are connected in parallel and connected between a second pin of the first bridge rectifier diode and a negative electrode of the second diode; the first high-frequency transformer comprises a first winding and a second winding, the upper end of the first winding of the first high-frequency transformer is connected with one end of a second resistor, one end of a third resistor and one end of a third capacitor, the other end of the second resistor, the other end of the third resistor and the other end of the third capacitor are connected with the cathode of a second diode, and the lower end of the first winding of the first high-frequency transformer is connected with the anode of the second diode.
5. The emergency ceiling lamp circuit device according to claim 4, wherein the output rectifying circuit module (15) comprises a third diode, a fourth electrolytic capacitor and a fourth resistor, the fourth electrolytic capacitor and the fourth resistor are connected in parallel, one end of the fourth electrolytic capacitor and one end of the fourth resistor are both connected with a negative electrode of the third diode, an anode of the third diode is connected with an upper end of the second winding of the first high-frequency transformer, and the other end of the fourth electrolytic capacitor, the other end of the fourth resistor and a lower end of the second winding of the common mode inductor are all connected with a common terminal.
6. The emergency ceiling lamp circuit device according to claim 5, wherein the output current sampling resistor circuit module (16) comprises a fifth resistor and a sixth resistor connected in parallel, one end of the fifth resistor and one end of the sixth resistor are both connected with the lower end of the second winding of the first high-frequency transformer, and the other end of the fifth resistor and the other end of the sixth resistor are both grounded.
7. The emergency ceiling lamp circuit device according to claim 3, wherein the charging management circuit module (21) comprises a seventh starting resistor, an eighth starting resistor, a driving chip, an optocoupler feedback circuit (210), a ninth resistor and a tenth resistor, wherein the driving chip has 8 pins, two same pins of the driving chip are connected with the anode of the second diode, one of the pins of the driving chip is connected with one end of the ninth resistor and one end of the tenth resistor, one of the pins of the driving chip, the other end of the ninth resistor and the other end of the tenth resistor are grounded, and the second pin of the first bridge rectifier diode sequentially connects the seventh starting resistor and the eighth starting resistor to one of the pins of the driving chip; one of the pins of the driving chip is connected with one end of the optical coupling feedback circuit (210), the other end of the optical coupling feedback circuit (210) is grounded, and one of the pins of the driving chip is connected with the maintenance power supply circuit module (22).
8. The emergency ceiling lamp circuit device according to claim 7, wherein the maintaining power supply circuit module (22) comprises a sixth electrolytic capacitor, an eleventh resistor, a fourth diode, a second transformer and a seventh safety capacitor; the second transformer is provided with a winding, the upper end of the winding of the second transformer is connected with the anode of the fourth diode, the lower end of the winding of the second transformer and the cathode of the sixth electrolytic capacitor are grounded, the anode of the sixth electrolytic capacitor and one end of the eleventh resistor are both connected with one pin of the driving chip of the charging management circuit module, the other end of the eleventh resistor is connected with the cathode of the fourth diode, one end of the seventh safety capacitor is grounded, and the other end of the seventh safety capacitor is connected with the common terminal.
9. The emergency ceiling lamp circuit device according to claim 5, wherein the constant current control circuit module (23) comprises a twelfth resistor, a thirteenth resistor, a fourteenth resistor, an eighth capacitor, a driving chip, a ninth capacitor, a fifteenth resistor, a sixteenth resistor, a seventeenth resistor, a tenth capacitor and an eleventh electrolytic capacitor; the driving chip is provided with 6 pins from the first pin to the sixth pin; one end of a twelfth resistor is connected with the negative electrode of a third diode of the output rectifying circuit module (15), the other end of the twelfth resistor is connected with one end of a fourteenth resistor, and the other end of the fourteenth resistor is grounded; the second pin of the driving chip is grounded, the first pins of the driving chip are connected with the part between the twelfth resistor and the fourteenth resistor and one end of an eighth capacitor, one end of a thirteenth resistor is connected with the other end of the eighth capacitor, the third pins of the driving chip are connected with the other end of the thirteenth resistor, the voltage feedback loop circuit module and one end of a ninth capacitor, the other end of the ninth capacitor is connected with one end of a fifteenth resistor, the fifth pin of the driving chip is connected with the other end of the fifteenth resistor and one end of a seventeenth resistor, the other end of the seventeenth resistor is grounded, the fourth pin of the driving chip is connected with one end of a sixteenth resistor, and the other end of the sixteenth resistor is connected with a common end; and a sixth pin of the driving chip is connected with one end of a tenth capacitor, the anode of the eleventh electrolytic capacitor and a voltage feedback loop circuit module (24), the tenth capacitor is connected with one end of a seventeenth resistor and is grounded, and the cathode of the eleventh electrolytic capacitor is connected with a common terminal.
10. The emergency ceiling lamp circuit arrangement according to claim 9, wherein the voltage feedback loop circuit module (24) comprises a light emitting diode, an eighteenth resistor, a triode, a nineteenth resistor, a twentieth resistor, and a fifth zener diode; the negative electrode of the light emitting diode is connected with the third pin of the driving chip of the constant current control circuit module, the positive electrode of the light emitting diode is connected with one end of the thirteenth resistor, the source electrode of the triode is connected with the other end of the thirteenth resistor and the sixth pin of the driving chip of the constant current control circuit module, the nineteenth resistor and the twelfth resistor are connected between the drain electrode of the triode and the grid electrode of the triode, the negative electrode of the third diode of the output rectifying circuit module is also connected between the nineteenth resistor and the twelfth resistor, the grid electrode of the triode is also connected with the negative electrode of the fifth voltage stabilizing diode, and the positive electrode of the fifth voltage stabilizing diode is connected with the public end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121797574.8U CN215956683U (en) | 2021-08-04 | 2021-08-04 | Emergency ceiling lamp circuit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121797574.8U CN215956683U (en) | 2021-08-04 | 2021-08-04 | Emergency ceiling lamp circuit device |
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| Publication Number | Publication Date |
|---|---|
| CN215956683U true CN215956683U (en) | 2022-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121797574.8U Active CN215956683U (en) | 2021-08-04 | 2021-08-04 | Emergency ceiling lamp circuit device |
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| Country | Link |
|---|---|
| CN (1) | CN215956683U (en) |
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- 2021-08-04 CN CN202121797574.8U patent/CN215956683U/en active Active
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