CN212851094U - Low-voltage dimming LED lamp track system - Google Patents
Low-voltage dimming LED lamp track system Download PDFInfo
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- CN212851094U CN212851094U CN202021676575.2U CN202021676575U CN212851094U CN 212851094 U CN212851094 U CN 212851094U CN 202021676575 U CN202021676575 U CN 202021676575U CN 212851094 U CN212851094 U CN 212851094U
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Abstract
The utility model belongs to the technical field of the dimming system technique and specifically relates to indicate a LED lamp track system that low pressure was adjusted luminance, it includes the track, installs the lamps and lanterns body in the track and installs at orbital power supply joint, the lamps and lanterns body with the power supply joint electricity is connected, the lamps and lanterns body includes that the low pressure is adjusted luminance drive arrangement and is connected with the low pressure LED lamp body of adjusting luminance drive arrangement electricity, the low pressure is adjusted luminance drive arrangement and is included input rectification filter module, adjust luminance input signal sampling module, power supply voltage stabilizing module, adjust luminance and handle output control module and constant current output control module. The utility model discloses novel structure, design benefit under low pressure drive arrangement's effect of adjusting luminance, realizes making the power supply of the adaptable arbitrary waveform voltage of LED lamp body, and the structure is reliable, adjusts the convenience, utilizes the input signal sampling module of adjusting luminance and adjusts luminance and handles output control module, realizes the effect of adjusting luminance.
Description
Technical Field
The utility model belongs to the technical field of the dimming system technique and specifically relates to indicate a LED lamp track system that low pressure was adjusted luminance.
Background
In early track systems, a traditional transformer and an electronic transformer are often used for supplying power, and a corresponding dimmer is matched to change the output voltage of the transformer, so that the track system dimming is realized and is only suitable for resistive incandescent lamps and other light sources. The existing common track system adopts a two-wire track system to supply power, the power supply is alternating voltage, the alternating voltage is changed, and the common low-voltage LED track lamp cannot be subjected to system dimming generally.
Disclosure of Invention
The utility model discloses problem to prior art provides a LED lamp track system that low pressure was adjusted luminance, novel structure, design benefit, external power supply is connected in the power supply, realize providing electric power for the lamps and lanterns body, adjust luminance under drive arrangement's the effect at the low pressure, adopt input rectification filter module, adjust luminance input signal sampling module, power supply voltage stabilizing module, adjust luminance and handle output control module and constant current output control module, realize making the power supply of the adaptable arbitrary waveform voltage of LED lamp body, the structure is reliable, it is convenient to adjust, utilize and adjust luminance input signal sampling module and adjust luminance and handle output control module, realize the effect of adjusting luminance.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides a LED lamp track system of low pressure light modulation, including the track, install the lamps and lanterns body in the track and install at orbital power supply joint, the lamps and lanterns body with power supply joint electricity is connected, the lamps and lanterns body includes low pressure light modulation drive arrangement and the LED lamp body of being connected with low pressure light modulation drive arrangement electricity, low pressure light modulation drive arrangement includes input rectification filter module, adjusts luminance input signal sampling module, power supply voltage stabilizing module, adjusts luminance and handles output control module and constant current output control module;
the input rectifying and filtering module is used for rectifying the input voltages with various waveforms into unidirectional direct-current voltage;
the dimming input signal sampling module is used for carrying out voltage reduction and voltage division on input voltage and then carrying out integral filtering to obtain a voltage signal required by dimming;
the dimming processing output control module is used for converting the dimming analog voltage output by the dimming input signal sampling module into PWM dimming voltage;
the constant current output control module is used for outputting current voltage required by the LED lamp body; and the power supply voltage stabilizing module is used for simultaneously getting power from the input voltage and the constant current output control module, and stabilizing the voltage after combining the voltages to supply power to the dimming processing output control module.
The LED lamp comprises a track, a lamp body and a low-voltage dimming driving device, wherein a sliding rail is arranged in the track, the lamp body comprises a driving box, a plurality of sliding blocks are arranged on two sides of the driving box, the sliding blocks are arranged in the sliding rail in a sliding mode, an LED lamp body is arranged at the bottom of the driving box, and the low-voltage dimming driving device is arranged in the driving box.
Insulating colloid is arranged on two sides of the inner wall of the track, and a power connection strip is arranged on the insulating colloid.
The two sides of the outer wall of the driving box are provided with first electric connection elastic pieces, one end of each first electric connection elastic piece is connected with the low-voltage dimming driving device, and the other end of each first electric connection elastic piece is connected with the electric connection strip.
The power supply connector comprises a connector shell, an electric wire arranged in the connector shell and second power connection elastic pieces arranged on two sides of the connector shell, one end of each second power connection elastic piece is connected with the electric wire, and the other end of each second power connection elastic piece is connected with the power connection strip.
The input rectifying and filtering module comprises a rectifying unit BD1, a diode D1, a diode D3, a capacitor C1, a capacitor EC1 and a resistor R12, wherein the output end of the rectifying unit BD1 is respectively connected with the anode of the diode D1 and the anode of the diode D3, the cathode of the diode D3 is connected with the dimming input signal sampling module, the cathode of the diode D1 is respectively connected with one end of the resistor R12 and one end of the capacitor C1, the other end of the capacitor C1 is grounded, the capacitor EC1 is connected with the capacitor C1 in parallel, and the other end of the resistor R12 is connected with the power supply voltage stabilizing module.
The dimming input signal sampling module comprises a resistor R8, a resistor R9, a resistor R10, a resistor R11, a capacitor C4, a capacitor C5 and a zener diode Z1, one end of the resistor R8 is connected with the input rectifying and filtering module, the other end of the resistor R8 is connected with one end of a resistor R9, one end of a capacitor C4 and the cathode of the zener diode Z1, the other end of the resistor R9 is connected with one end of a resistor R10 and one end of a resistor R11, the other end of the resistor R10, the other end of the capacitor C4 and the anode of the zener diode Z2 are all grounded, the other end of the resistor R11 is connected with one end of a capacitor C5 and the dimming processing output control module, and the other end of the capacitor C5 is grounded.
Wherein, the dimming processing output control module comprises an MCU processor U2.
The constant current output control module comprises a dimming chip U1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R15, a capacitor C2, a capacitor C3, a diode D2, an inductor L1, a MOS transistor Q1 and a capacitor EC 2; the cathode of the diode D2 is connected to the input rectifying and filtering module, the anode of the diode D2 is connected to one end of the inductor L1 and the drain of the MOS transistor Q1, the gate of the MOS transistor Q1 is connected to one end of a resistor R4 and one end of a resistor R5, the other end of the resistor R4 is connected to the DRV pin of the dimming chip U1, the other end of the resistor R5 is connected to the GND pin of the dimming chip U1, one end of a capacitor C2 and one end of a resistor R7, the other end of the resistor R7 is connected to the resistor R15, the other end of the resistor R15 is connected to the dimming processing output control module, the other end of the capacitor C2 and the other end of the resistor R7 are also connected to the DIM pin of the dimming chip U1, and the other end of the resistor R5 and the source of the MOS transistor Q1 are both grounded; the VCC pin of the dimming chip U1 is respectively connected with one end of a capacitor C3 and the power supply voltage stabilizing module, and the other end of the capacitor C3 is grounded; the other end of the inductor L1 is connected with one end of a capacitor EC2, the other end of the capacitor EC2 is connected with an RS pin of a dimming chip U1, a resistor R6 is connected with the capacitor EC2 in parallel, and the LED lamp body is connected with the resistor R6 in parallel; the resistor R1, the resistor R2 and the resistor R3 are all connected between the VIN pin and the RS pin of the dimming chip U1 in parallel, and the VIN pin of the dimming chip U1 is connected with the input rectifying and filtering module.
The power supply voltage stabilizing module comprises a resistor R13, a resistor R14, a voltage stabilizing diode Z2, a diode D4, a diode D5, a capacitor C6 and a capacitor C7, wherein the anode of the voltage stabilizing diode Z2 is respectively connected with one end of the capacitor C6 and the dimming input signal sampling module, the cathode of the voltage stabilizing diode Z2 is respectively connected with one end of the resistor R13, the cathode of the diode D4 and one end of the resistor R14, the other end of the resistor R14 is connected with the other end of the capacitor C6, the capacitor C7 is connected with the capacitor C6 in parallel, the other end of the resistor R13 is connected with the input rectifying and filtering module, the anode of the diode D4 is connected with the cathode of the diode D5, and the anode of the diode D5 is connected with the constant current output control module.
The utility model has the advantages that:
the utility model discloses novel structure, design benefit, power supply connector external power supply realizes providing electric power for the lamps and lanterns body, under low pressure drive arrangement that adjusts luminance's effect, adopt input rectification filter module, adjust luminance input signal sampling module, power supply voltage stabilizing module, adjust luminance and handle output control module and constant current output control module, realize making the power supply of the adaptable arbitrary waveform voltage of LED lamp body, the structure is reliable, it is convenient to adjust, utilize input signal sampling module and adjust luminance and handle output control module, realize the effect of adjusting luminance.
Drawings
Fig. 1 is a schematic structural diagram of a low-voltage dimming LED lamp track system of the present invention.
Fig. 2 is a schematic structural diagram of a low-voltage dimming LED lamp track system of the present invention.
Fig. 3 is a schematic structural diagram of a low-voltage dimming LED lamp track system of the present invention.
Fig. 4 is a schematic structural diagram of a low-voltage dimming LED lamp track system of the present invention.
Fig. 5 is a circuit diagram of the low voltage dimming driving apparatus of the present invention.
The reference numerals in fig. 1 to 5 include:
1-track 2-power supply connector 3-low voltage dimming driving device
4-LED lamp body 5-input rectification filter module 6-dimming input signal sampling module
7-power supply voltage stabilizing module 8-constant current output control module 9-dimming processing output control module
10-slide rail 11-drive box 12-slide block
13-insulating colloid 14-power connection strip 15-first power connection elastic sheet
16-connector shell 17-wire 18-second electric contact spring piece
19-upper cover 20-catching groove 21-catching block
22-card slot.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. The present invention will be described in detail with reference to the accompanying drawings.
A low-voltage dimming LED lamp track system is shown in figures 1 to 5 and comprises a track 1, a lamp body arranged in the track 1 and a power supply connector 2 arranged on the track 1, wherein the lamp body is electrically connected with the power supply connector 2, the lamp body comprises a low-voltage dimming driving device 3 and an LED lamp body 4 electrically connected with the low-voltage dimming driving device 3, and the low-voltage dimming driving device 3 comprises an input rectifying and filtering module 5, a dimming input signal sampling module 6, a power supply voltage stabilizing module 7, a dimming processing output control module 9 and a constant current output control module 8;
the input rectifying and filtering module 5 is used for rectifying the input voltages with various waveforms into unidirectional direct-current voltage;
the dimming input signal sampling module 6 is used for carrying out voltage reduction and voltage division on input voltage and then carrying out integral filtering to obtain a voltage signal required by dimming;
the dimming processing output control module 9 is configured to convert the dimming analog voltage output by the dimming input signal sampling module 6 into a PWM dimming voltage;
the constant current output control module 8 is used for outputting current voltage required by the LED lamp body 4;
and the power supply voltage stabilizing module 7 is used for simultaneously getting power from the input voltage and the constant current output control module 8, and stabilizing the voltage after combining the voltages to supply power to the dimming processing output control module 9.
Specifically, the embodiment of the utility model provides a novel structure, and novel design, power supply connector 2 external power supply, realize providing electric power for the lamps and lanterns body, under low pressure drive arrangement 3 that adjusts luminance, adopt input rectification filter module 5, input signal sampling module 6 adjusts luminance, power supply voltage stabilizing module 7, adjust luminance and handle output control module 9 and constant current output control module 8, realize making the power supply of the adaptable arbitrary waveform voltage of LED lamp body 4, the structure is reliable, it is convenient to adjust, utilize input signal sampling module 6 and adjust luminance and handle output control module 9, get the power supply mode through the aforesaid front and back level, utilize the front and back level voltage difference to carry out work time sequence control, guarantee that low pressure drive arrangement 3's that adjusts luminance control circuit works earlier, drive circuit works afterwards, realize that drive LED lamp body 4 works after earlier controlling, realize the effect of adjusting luminance.
This embodiment a low pressure LED lamp track system of adjusting luminance, be provided with slide rail 10 in the track 1, the lamps and lanterns body is including drive box 11, the both sides of drive box 11 all are provided with a plurality of sliders 12, slider 12 slide set up in the slide rail 10, LED lamp body 4 is installed the bottom of drive box 11, low pressure drive arrangement 3 of adjusting luminance is installed in the drive box 11. Specifically, the top of drive box 11 can be dismantled and be connected with upper cover 19, upper cover 19 forms with drive box 11 and holds the chamber for accomodate and protect low pressure drive arrangement 3 that adjusts luminance, and the structure is reliable, wherein, drive box 11 is provided with a plurality of catching grooves 20, the bottom of upper cover 19 is provided with a plurality of knot pieces 21, and the equipment of upper cover 19 and drive box 11 is realized to knot piece 21 and catching grooves 20 cooperation lock joint.
The embodiment the low-voltage dimming LED lamp track system, insulating colloid 13 has all been installed to track 1's inner wall both sides, be provided with on insulating colloid 13 and connect electric strip 14. Specifically, the inner wall of track 1 still is provided with the card and establishes insulating glue 13's draw-in groove 22, connect electric strip 14 for connecing electric copper bar, install the side that is close to each other at insulating glue 13, be convenient for connect electric shell fragment 15, the contact of second electricity shell fragment 18 with first electricity and switch on.
In the low-voltage dimming LED lamp track system of the present embodiment, the two sides of the outer wall of the driving box 11 are both provided with the first electric contact spring 15, one end of the first electric contact spring 15 is connected to the low-voltage dimming driving device 3, and the other end of the first electric contact spring 15 is connected to the electric contact strip 14.
In the low-voltage dimming LED lamp track system according to this embodiment, the power supply connector 2 includes a connector housing 16, an electric wire 17 disposed in the connector housing 16, and second electrical connection elastic pieces 18 disposed on two sides of the connector housing 16, one end of the second electrical connection elastic piece 18 is connected to the electric wire 17, and the other end of the second electrical connection elastic piece 18 is connected to the electrical connection strip 14.
The low-voltage dimming LED lamp rail system according to this embodiment, the input rectification filter module 5 includes a rectification unit BD1, a diode D1, a diode D3, a capacitor C1, a capacitor EC1, and a resistor R12, an output end of the rectification unit BD1 is connected to an anode of the diode D1 and an anode of the diode D3, a cathode of the diode D3 is connected to the dimming input signal sampling module 6, a cathode of the diode D1 is connected to one end of the resistor R12 and one end of the capacitor C1, the other end of the capacitor C1 is grounded, the capacitor EC1 is connected to the capacitor C1 in parallel, and the other end of the resistor R12 is connected to the power supply voltage stabilizing module 7.
In the low-voltage dimming LED lamp rail system according to this embodiment, the dimming input signal sampling module 6 includes a resistor R8, a resistor R9, a resistor R10, a resistor R11, a capacitor C4, a capacitor C5, and a zener diode Z1, one end of the resistor R8 is connected to the input rectifying and filtering module 5, the other end of the resistor R8 is connected to one end of a resistor R9, one end of the capacitor C4, and a cathode of the zener diode Z1, the other end of the resistor R9 is connected to one end of a resistor R10 and one end of a resistor R11, the other end of the resistor R10, the other end of the capacitor C4, and an anode of the zener diode Z2 are all grounded, the other end of the resistor R11 is connected to one end of a capacitor C5 and the dimming processing output control module 9, and the other end of the capacitor C5 is grounded.
In the low-voltage dimming LED lamp track system of the present embodiment, the dimming processing output control module 9 includes an MCU processor U2, wherein the MCU processor U2 may be a single chip processor.
In the low-voltage dimming LED lamp rail system according to this embodiment, the constant current output control module 8 includes a dimming chip U1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R15, a capacitor C2, a capacitor C3, a diode D2, an inductor L1, a MOS transistor Q1, and a capacitor EC 2; the cathode of the diode D2 is connected to the input rectifying and filtering module 5, the anode of the diode D2 is connected to one end of the inductor L1 and the drain of the MOS transistor Q1, the gate of the MOS transistor Q1 is connected to one end of a resistor R4 and one end of a resistor R5, the other end of the resistor R4 is connected to the DRV pin of the dimming chip U1, the other end of the resistor R5 is connected to the GND pin of the dimming chip U1, one end of a capacitor C2 and one end of a resistor R7, the other end of the resistor R7 is connected to a resistor R15, the other end of the resistor R15 is connected to the dimming processing output control module 9, the other end of the capacitor C2 and the other end of the resistor R7 are also connected to the DIM pin of the dimming chip U1, and the other end of the resistor R5 and the source of the MOS transistor Q1 are both grounded; the VCC pin of the dimming chip U1 is respectively connected with one end of a capacitor C3 and the power supply voltage stabilizing module 7, and the other end of the capacitor C3 is grounded; the other end of the inductor L1 is connected with one end of a capacitor EC2, the other end of the capacitor EC2 is connected with an RS pin of a dimming chip U1, a resistor R6 is connected with the capacitor EC2 in parallel, and the LED lamp body 4 is connected with the resistor R6 in parallel; the resistor R1, the resistor R2 and the resistor R3 are all connected in parallel between the VIN pin and the RS pin of the dimming chip U1, and the VIN pin of the dimming chip U1 is connected with the input rectifying and filtering module 5. The model of the dimming chip U1 is MP 24894.
In the low-voltage dimming LED lamp rail system according to this embodiment, the power supply voltage stabilizing module 7 includes a resistor R13, a resistor R14, a voltage stabilizing diode Z2, a diode D4, a diode D5, a capacitor C6, and a capacitor C7, an anode of the voltage stabilizing diode Z2 is connected to one end of the capacitor C6 and the dimming input signal sampling module 6, a cathode of the voltage stabilizing diode Z2 is connected to one end of the resistor R13, a cathode of the diode D4, and one end of the resistor R14, another end of the resistor R14 is connected to another end of the capacitor C6, the capacitor C7 is connected to the capacitor C6 in parallel, another end of the resistor R13 is connected to the input rectifying and filtering module 5, an anode of the diode D4 is connected to a cathode of the diode D5, and an anode of the diode D5 is connected to the constant current output control module 8.
The anode of the zener diode Z2 is connected to the other end of the resistor R10 and the other end of the capacitor C5, the other end of the resistor R13 is connected to the other end of the resistor R12, the cathode of the diode D3 is connected to the other end of the resistor R8, the anode of the diode D5 is connected to the VCC pin of the dimming chip U1, the cathode of the diode D1 is connected to the cathode of the diode D2, and the other end of the resistor R15 is connected to the RA4 pin of the MCU chip U2.
In the low-voltage dimming LED lamp track system of this embodiment, the operating principle of the low-voltage dimming driving device 3 is as follows:
the input rectifying and filtering module 5 is used for rectifying the input voltage into unidirectional direct-current voltage through a rectifying unit BD1, isolating the unidirectional direct-current voltage through a diode D1, inputting the unidirectional direct-current voltage into the dimming input signal sampling module 6 for dimming input signal sampling before the diode D1 is isolated, filtering the dimming input signal into stable direct-current voltage through a capacitor EC1 and a capacitor C1 after the diode D1 is isolated, and inputting the stable direct-current voltage into the power supply voltage stabilizing module 7 and the constant current output control module 8; the dimming input signal sampling module 6 takes out the dimming required signal.
The sampling of the dimming input signal sampling module 6 is isolated by a diode D3, after the current is limited by a resistor R8, a voltage stabilizing diode Z1 performs voltage stabilizing and clamping, and meanwhile, interference is eliminated by filtering of a capacitor C5, and the voltage is divided by the resistor R9 and a resistor R10 and then integrated and filtered by a resistor R11 and a capacitor C5 to form a stable direct current voltage signal which is input to the MCU processor U2.
The power supply voltage stabilizing module 7 is used for ensuring that the MCU processor U2 has enough power supply when the dimming voltage is adjusted to be low, so that the power supply voltage stabilizing module 7 can carry out current limiting, voltage reducing and power taking from the main circuit through a resistor R12 and a resistor R13, and simultaneously carry out voltage reducing and power taking from a VCC pin of the dimming chip U1 through a resistor D4 and a resistor D5; in addition, since the working voltage of the dimming chip U1 is greater than 6V, and the working voltage of the MCU processor U2 is greater than 2.3V, the power is taken from the dimming chip U1, so that the MCU processor U2 can work before the dimming chip U1 works in order to control the working time sequence, the dimming chip U1 is controlled by the MCU processor U2 when being powered on, and the LED lamp body 4 is prevented from flickering due to the fact that the dimming chip U1 is not controlled when being powered on.
And the dimming processing output control module 9 is used for converting the analog voltage signal of the dimming input signal sampling module 6 into a PWM dimming signal, limiting the PWM dimming signal through a resistor R7, and inputting the PWM dimming signal into the dimming chip U1 for dimming control.
The constant current output control module 8 is a voltage reduction constant current circuit, the dimming chip U1 drives the MOS transistor Q1 to perform switching, when the MOS transistor Q1 is turned on, the power supply of the LED lamp body 4 is turned on, when the MOS transistor Q1 is turned off, the energy stored in the inductor L1 when the Q1 is turned on is released to maintain the continuous power supply of the LED lamp body 4, and during dimming, the PWM of the DIM pin of the dimming chip U1 determines the on-time of the dimming chip U1 driving the MOS transistor Q1, so that the current voltage required by the constant current output of the LED can be dimmed by the front dimming input signal sampling module 6 and the dimming processing output control module 9.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention is disclosed in the preferred embodiment, it is not limited to the above description, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, but all the technical solutions of the present invention are within the scope of the present invention.
Claims (10)
1. The utility model provides a LED lamp track system that low pressure was adjusted luminance which characterized in that: the low-voltage dimming driving device comprises an input rectifying and filtering module, a dimming input signal sampling module, a power supply voltage stabilizing module, a dimming processing output control module and a constant current output control module;
the input rectifying and filtering module is used for rectifying the input voltages with various waveforms into unidirectional direct-current voltage;
the dimming input signal sampling module is used for carrying out voltage reduction and voltage division on input voltage and then carrying out integral filtering to obtain a voltage signal required by dimming;
the dimming processing output control module is used for converting the dimming analog voltage output by the dimming input signal sampling module into PWM dimming voltage;
the constant current output control module is used for outputting current voltage required by the LED lamp body; and the power supply voltage stabilizing module is used for simultaneously getting power from the input voltage and the constant current output control module, and stabilizing the voltage after combining the voltages to supply power to the dimming processing output control module.
2. A low voltage dimming LED lamp track system according to claim 1, wherein: the LED lamp comprises a track, and is characterized in that a sliding rail is arranged in the track, the lamp body comprises a driving box, a plurality of sliding blocks are arranged on two sides of the driving box, the sliding blocks are arranged in the sliding rail in a sliding mode, an LED lamp body is arranged at the bottom of the driving box, and a low-voltage dimming driving device is arranged in the driving box.
3. A low voltage dimming LED lamp track system according to claim 2, wherein: insulating colloid has all been installed to orbital inner wall both sides, be provided with on the insulating colloid and connect the electric strip.
4. A low voltage dimming LED lamp track system according to claim 3, wherein: the two sides of the outer wall of the driving box are provided with first electric connection elastic pieces, one end of each first electric connection elastic piece is connected with the low-voltage dimming driving device, and the other end of each first electric connection elastic piece is connected with the electric connection strip.
5. A low voltage dimming LED lamp track system according to claim 3, wherein: the power supply connector comprises a connector shell, an electric wire arranged in the connector shell and second power connection elastic pieces arranged on two sides of the connector shell, one end of each second power connection elastic piece is connected with the electric wire, and the other end of each second power connection elastic piece is connected with the power connection strip.
6. A low voltage dimming LED lamp track system according to claim 1, wherein: the input rectifying and filtering module comprises a rectifying unit BD1, a diode D1, a diode D3, a capacitor C1, a capacitor EC1 and a resistor R12, wherein the output end of the rectifying unit BD1 is respectively connected with the anode of the diode D1 and the anode of the diode D3, the cathode of the diode D3 is connected with the dimming input signal sampling module, the cathode of the diode D1 is respectively connected with one end of the resistor R12 and one end of the capacitor C1, the other end of the capacitor C1 is grounded, the capacitor EC1 is connected with the capacitor C1 in parallel, and the other end of the resistor R12 is connected with the power supply voltage stabilizing module.
7. A low voltage dimming LED lamp track system according to claim 1, wherein: the dimming input signal sampling module comprises a resistor R8, a resistor R9, a resistor R10, a resistor R11, a capacitor C4, a capacitor C5 and a zener diode Z1, one end of the resistor R8 is connected with the input rectifying and filtering module, the other end of the resistor R8 is respectively connected with one end of a resistor R9, one end of the capacitor C4 and the cathode of the zener diode Z1, the other end of the resistor R9 is respectively connected with one end of a resistor R10 and one end of the resistor R11, the other end of the resistor R10, the other end of the capacitor C4 and the anode of the zener diode Z2 are all grounded, the other end of the resistor R11 is respectively connected with one end of a capacitor C5 and the dimming processing output control module, and the other end of the capacitor C5 is grounded.
8. A low voltage dimming LED lamp track system according to claim 1, wherein: the dimming processing output control module comprises an MCU processor U2.
9. A low voltage dimming LED lamp track system according to claim 1, wherein: the constant current output control module comprises a dimming chip U1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R15, a capacitor C2, a capacitor C3, a diode D2, an inductor L1, a MOS transistor Q1 and a capacitor EC 2; the cathode of the diode D2 is connected to the input rectifying and filtering module, the anode of the diode D2 is connected to one end of the inductor L1 and the drain of the MOS transistor Q1, the gate of the MOS transistor Q1 is connected to one end of a resistor R4 and one end of a resistor R5, the other end of the resistor R4 is connected to the DRV pin of the dimming chip U1, the other end of the resistor R5 is connected to the GND pin of the dimming chip U1, one end of a capacitor C2 and one end of a resistor R7, the other end of the resistor R7 is connected to the resistor R15, the other end of the resistor R15 is connected to the dimming processing output control module, the other end of the capacitor C2 and the other end of the resistor R7 are also connected to the DIM pin of the dimming chip U1, and the other end of the resistor R5 and the source of the MOS transistor Q1 are both grounded; the VCC pin of the dimming chip U1 is respectively connected with one end of a capacitor C3 and the power supply voltage stabilizing module, and the other end of the capacitor C3 is grounded; the other end of the inductor L1 is connected with one end of a capacitor EC2, the other end of the capacitor EC2 is connected with an RS pin of a dimming chip U1, a resistor R6 is connected with the capacitor EC2 in parallel, and the LED lamp body is connected with the resistor R6 in parallel; the resistor R1, the resistor R2 and the resistor R3 are all connected between the VIN pin and the RS pin of the dimming chip U1 in parallel, and the VIN pin of the dimming chip U1 is connected with the input rectifying and filtering module.
10. A low voltage dimming LED lamp track system according to claim 1, wherein: the power supply voltage stabilizing module comprises a resistor R13, a resistor R14, a voltage stabilizing diode Z2, a diode D4, a diode D5, a capacitor C6 and a capacitor C7, wherein the anode of the voltage stabilizing diode Z2 is respectively connected with one end of the capacitor C6 and the dimming input signal sampling module, the cathode of the voltage stabilizing diode Z2 is respectively connected with one end of the resistor R13, the cathode of the diode D4 and one end of the resistor R14, the other end of the resistor R14 is connected with the other end of the capacitor C6, the capacitor C7 is connected with the capacitor C6 in parallel, the other end of the resistor R13 is connected with the input rectifying and filtering module, the anode of the diode D4 is connected with the cathode of the diode D5, and the anode of the diode D5 is connected with the constant current output control module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021676575.2U CN212851094U (en) | 2020-08-12 | 2020-08-12 | Low-voltage dimming LED lamp track system |
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| CN202021676575.2U CN212851094U (en) | 2020-08-12 | 2020-08-12 | Low-voltage dimming LED lamp track system |
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