CN220457625U

CN220457625U - Magnetic track lamp control device

Info

Publication number: CN220457625U
Application number: CN202321432930.5U
Authority: CN
Inventors: 胡志锋; 袁柳林; 张瑞果
Original assignee: Hangzhou Honyar Electrical Co Ltd
Current assignee: Hangzhou Honyar Electrical Co Ltd
Priority date: 2023-06-06
Filing date: 2023-06-06
Publication date: 2024-02-06
Anticipated expiration: 2033-06-06

Abstract

The utility model discloses a magnetic track lamp control device, which comprises a power supply module, a lighting module, a conversion module and a dimming module, wherein the power supply module is connected with the lighting module; the power module is electrically connected to the conversion module and the dimming module and is used for providing electric energy required by the device; the conversion module is electrically connected to the dimming module and is used for receiving external signals and transmitting the external signals to the dimming module; the dimming module is electrically connected to the lighting module and is used for receiving the output signal of the conversion module and controlling the lighting module to act; the lighting module is composed of a plurality of lighting devices. The utility model has the beneficial effects that: the magnetic track lamp control device is provided, and the conversion module is used for receiving external signals and controlling the dimming module to perform unified centralized control on the lighting module, so that the effect of controlling the lamps on the whole magnetic track through a signal instruction is achieved.

Description

Magnetic track lamp control device

Technical Field

The application relates to intelligent lamp control field especially relates to track lamp controlling means is inhaled to magnetism.

Background

The magnetic guide rail lamp overcomes the defects that the traditional track lamp is difficult to disassemble and maintain due to the fact that the track lamp is erected, the lamp is installed and the like. Meanwhile, the magnetic guide rail lamp can be used for highlighting the key illumination of building elements, providing basic illumination or atmosphere creation, so the magnetic guide rail lamp is deeply favored by the masses of consumers.

When intelligent lamps are used in a home environment, only some simple control operations such as switching, dimming, color mixing, multicasting and the like are usually operated, and the states of all lamps on one control track are kept consistent. In order to realize integral control, the existing intelligent magnetic guide rail lamp is mainly controlled by adding a wireless control module or a control chip matched with two buses in each lamp. The method for adding the wireless control module not only increases the cost of a single lamp, but also needs to perform operations such as network distribution, multicast and the like aiming at a plurality of devices, the project implementation is complex, and the metal guide rail and the lamp body have obvious attenuation on wireless signals, so that the problems of reduced module communication distance, increased packet loss rate, asynchronous intelligent lamp control and the like are caused. The cost is relatively reduced by adding the control chip to be matched with the two buses, but the implementation is more complex.

Chinese patent "LED Lamp general installation System", publication number: CN112984476a, filing date: 2021-03-12 specifically discloses a general mounting system for LED lamps, which comprises a mounting rail, wherein a conducting plate and an electronic circuit conversion plate are fixedly arranged on the mounting rail, the two conducting plates are respectively electrically connected with a positive pole and a negative pole of a direct-current constant-voltage output power supply provided with a dimmer and an LED lamp provided with a direct-current driving power supply arranged on the rail, a nonpolar positive-negative voltage conversion circuit and a constant-current output control circuit which are connected with the two conducting plates and the direct-current driving power supply on the LED lamp in series are arranged on the electronic circuit conversion plate, an IC control circuit connected with the direct-current driving power supply of the LED lamp and a dimming circuit connected with a dimming interface of the IC control circuit are also arranged on the electronic circuit conversion plate, and the dimming circuit and the IC control circuit can finally generate PWM signals for the LED lamp by dimming analog voltages output by the dimmer. However, this technology still requires a built-in dc driving power source, which is costly.

Chinese patent (light and color adjusting lamp circuit) with publication number: CN217522975U, filing date: 2022-05-05, specifically discloses a composition comprising: the first end of the first light-emitting device is used for being electrically connected with a power supply; a second light emitting device, a first end of which is electrically connected to the power supply, a color temperature value of the first light emitting device being different from a color temperature value of the second light emitting device; a first switching device including three terminals, a first end of the first switching device being electrically connected to a second end of the first light emitting device, a second end of the first switching device being grounded, a third end of the first switching device being configured to receive a first pulse signal, the first pulse signal being configured to control the first switching device to be turned on or off, such that the first switching device controls an average current flowing through the first light emitting device for a predetermined period of time to adjust a brightness and color temperature value of the first light emitting device; the second switch device comprises three terminals, the first end of the second switch device is electrically connected with the second end of the second light-emitting device, the second end of the second switch device is connected with the reference ground, the third end of the second switch device is used for receiving a second pulse signal, the second pulse signal is used for controlling the second switch device to be closed or opened, and the second switch device is used for controlling average current flowing through the second light-emitting device in the preset period of time so as to adjust brightness and color temperature values of the second light-emitting device. The technology also adopts the mode of respectively controlling different light-emitting devices, a control module is needed to be added in each lamp, and when the number of the light-emitting devices is large, the number of the control modules is also increased.

Disclosure of Invention

Aiming at the problem that the control cost of each lamp is too high by adopting a method for adding a wireless control module in the prior art, the utility model provides the magnetic track lamp control device, which receives external signals through the conversion module and controls the dimming module to perform unified centralized control on the lighting module, thereby realizing the effect of controlling the lamps on the whole magnetic track through one signal instruction.

In order to achieve the technical aim, the technical scheme provided by the utility model is that the magnetic track lamp control device comprises a power supply module, a lighting module, a conversion module and a dimming module; the power module is electrically connected to the conversion module and the dimming module and is used for providing electric energy required by the device; the conversion module is electrically connected to the dimming module and is used for receiving external signals and transmitting the external signals to the dimming module; the dimming module is electrically connected to the lighting module and is used for receiving the output signal of the conversion module and controlling the lighting module to act; the lighting module is composed of a plurality of lighting devices.

Further, the power supply module at least comprises a power supply circuit, the input end of the power supply circuit is connected with the power supply unit, and the output end of the power supply circuit is connected with the conversion module.

Further, the power supply circuit comprises a common-mode inductor LF2, a rectifier bridge BD1 and a PFC circuit, wherein the input end of the common-mode inductor LF2 is connected to the output end of the power supply unit, the output end of the common-mode inductor LF2 is connected to the input end of the rectifier bridge BD1, and the output end of the rectifier bridge BD1 is connected to the input end of the PFC circuit.

Further, the PFC circuit at least comprises a driving chip U1, an energy storage capacitor, a boosting inductor L1 and an energy storage switch tube Q1, wherein the input end of the boosting inductor L1 is connected to the 2 pin of the rectifying bridge BD1, the output end of the boosting inductor L1 is connected to the MUL pin of the driving chip U1, the GND pin of the driving chip U1 is connected to the 4 pin of the rectifying bridge BD1, the DRV pin of the driving chip U1 is connected to the grid electrode of the energy storage switch tube Q1, the CS pin of the driving chip U1 is connected to the source electrode of the energy storage switch tube Q1 and grounded, the drain electrode of the energy storage switch tube Q1 is connected to the output end of the boosting inductor L1, one end of the energy storage capacitor is connected to the output end of the boosting inductor L1, and the other end is connected to the source electrode of the energy storage switch tube Q1.

Further, the power supply circuit is further provided with an auxiliary transformer LX1 and a quick recovery diode D5, the 1 end of the auxiliary transformer LX1 is connected to the output end of the boost inductor L1, the 2 end of the auxiliary transformer LX1 is connected to the ZCD pin of the driving chip U1, the 3 end of the auxiliary transformer LX1 is connected to the positive electrode of the quick recovery diode D5, the drain electrode of the energy storage switch tube Q1 is connected to the positive electrode of the quick recovery diode D5, one end of the energy storage capacitor is connected to the negative electrode of the quick recovery diode D5, the 4 end of the auxiliary transformer LX1 is grounded, and the 2 end and the 3 end of the auxiliary transformer LX1 are the same-name ends.

Further, the power supply module further comprises a constant voltage circuit, wherein the constant voltage circuit at least comprises a constant voltage chip U2, a constant voltage tube, a driving transformer T1 and a rectifier; the input of constant voltage chip U2 is connected in the PV end and the HV end of power network, and the output of constant voltage chip U2 is connected in the input of constant voltage pipe, and the output of constant voltage pipe is connected in the input of driving transformer T1, and the HV end of power network inserts the input of constant voltage pipe, and driving transformer T1's output is connected in the input of rectifier.

Further, the rectifier at least comprises a rectifying triode Q5 and a rectifying chip U3, the base electrode of the rectifying triode Q5 is grounded, the emitter electrode of the rectifying triode Q5 is connected to the OUT pin of the rectifying chip U3, and the collector electrode of the rectifying triode Q5 is connected to the output end of the driving transformer T1 and the VCC end of the rectifying chip U3.

Further, the conversion module at least comprises a conversion circuit and a signal receiving circuit, wherein the input end of the conversion circuit is connected with the output end of the constant voltage circuit, the output end of the conversion circuit is connected with the input end of the signal receiving circuit, the output end of the signal receiving circuit is connected with the dimming module, the conversion circuit receives the voltage from the constant voltage circuit and performs voltage reduction and voltage stabilization to provide stable voltage for the signal receiving circuit, and the signal receiving circuit is used for receiving the control signal from the outside, converting the control signal and outputting the control signal to the dimming module to realize dimming control.

Further, the dimming module at least comprises an amplifying circuit and an output circuit, wherein the input end of the amplifying circuit is connected with the signal output end of the conversion circuit, the output end of the amplifying circuit is connected with the input end of the output circuit, and the output end of the output circuit is connected with the lighting module.

Further, the output circuit at least comprises a first output chip U8, a first output pipe Q7, a second output chip U9 and a second output pipe Q10; the VCC pin of the first output chip U8 is connected to the fifth voltage end, the HIN pin of the first output chip U8 is connected to the OUTA pin of the amplifying chip U10, the HO pin of the first output chip U8 is connected to the grid electrode of the first output pipe Q7, the drain electrode of the first output pipe Q7 is connected to the voltage output end V_OUT end, and the source electrode of the first output pipe Q7 is connected to the connecting terminal CN2; the VCC pin of the second output chip U9 is connected to the sixth voltage terminal, the HIN pin of the second output chip U9 is connected to the OUTB pin of the amplifying chip U10, the LO pin of the second output chip U9 is connected to the gate of the second output pipe Q10, the drain of the second output pipe Q10 is connected to the voltage output terminal v_out terminal, and the source of the second output pipe Q10 is connected to the connection terminal CN2.

The utility model has the beneficial effects that: the driving part of the magnetic track lamp control device is integrated, namely the power supply module, the conversion module and the dimming module are integrated, the lighting module is uniformly controlled in an integrated mode, and each lamp on the magnetic track lamp is uniformly controlled by the driving part, so that the integral control of the whole magnetic track lamp is realized, the installation convenience is improved, the cost is reduced, and the interference of the magnet to the wireless module is reduced.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the magnetic track lamp control device of the utility model.

Fig. 2 is a schematic diagram of a power supply circuit of the magnetic track lamp control device shown in fig. 1.

Fig. 3 is a schematic diagram of a constant voltage circuit of the magnetic track lamp control device shown in fig. 1.

Fig. 4 is a schematic diagram of a detection circuit structure of the magnetic track lamp control device shown in fig. 1.

Fig. 5 is a schematic diagram of a conversion module of the magnetic track lamp control device shown in fig. 1.

Fig. 6 is a schematic view of a dimming module of the magnetic track lamp control device shown in fig. 1.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in further detail with reference to the accompanying drawings and examples, it being understood that the detailed description herein is merely a preferred embodiment of the present utility model, which is intended to illustrate the present utility model, and not to limit the scope of the utility model, as all other embodiments obtained by those skilled in the art without making any inventive effort fall within the scope of the present utility model.

As shown in fig. 1, in one embodiment of the present application, a magnetic track lamp control device includes a power module, a lighting module, a conversion module, and a dimming module. The power module is electrically connected to the conversion module and the dimming module and is used for providing electric energy required by the device; the conversion module is electrically connected to the dimming module and is used for receiving external signals and transmitting the external signals to the dimming module; the dimming module is electrically connected to the lighting module and is used for receiving the output signal of the conversion module and controlling the lighting module to act; the lighting module is composed of a plurality of lighting devices. The external control signals are received through the conversion module to be converted and output to the dimming module, and the dimming module controls a plurality of lighting devices in the lighting module according to the control signals to realize different lighting actions, so that the wireless control module is not required to be added in each lighting device, the on-off and dimming of the whole lighting module are controlled through the high-low level output of the dimming module, and the problems that the communication distance of a module is reduced, the packet loss rate is increased, the intelligent lamp is not synchronous and the like due to the fact that the wireless control module is interfered by a magnet are avoided while the cost is reduced.

Optionally, the lighting device is various lamps capable of providing lighting effect.

As shown in fig. 2, the power module specifically includes at least one power supply circuit, where an input end of the power supply circuit is connected to the power supply unit, and an output end of the power supply circuit is connected to the conversion module. The power supply circuit comprises a common-mode inductor LF2, a rectifier bridge BD1 and a PFC circuit, wherein the input end of the common-mode inductor LF2 is connected to the output end of the power supply unit, the output end of the common-mode inductor LF2 is connected to the input end of the rectifier bridge BD1, and the output end of the rectifier bridge BD1 is connected to the input end of the PFC circuit. The common-mode inductor LF2 and the rectifier bridge BD1 are used for suppressing EMC conduction interference of a power supply circuit, circuit power is improved through a PFC circuit, energy efficiency is improved, power consumption is reduced, and meanwhile high reliability is ensured.

Specifically, the power supply unit provides ac power, the a pin of the common-mode inductor LF2 is connected to the live wire end L of the ac power, the b pin of the common-mode inductor LF2 is connected to the zero wire end N of the ac power, the c pin of the common-mode inductor LF2 is connected to the 1 pin of the rectifier bridge BD1 and the switch end SW1, and the d pin of the common-mode inductor LF2 is connected to the 3 pin of the rectifier bridge BD1 and the switch end SW2. The PFC circuit at least comprises a driving chip U1, an energy storage capacitor, a boost inductor L1 and an energy storage switch tube Q1, wherein the input end of the boost inductor L1 is connected to the 2 pin of the rectifier bridge BD1, the output end of the boost inductor L1 is connected to the MUL pin of the driving chip U1, the GND pin of the driving chip U1 is connected to the 4 pin of the rectifier bridge BD1, the DRV pin of the driving chip U1 is connected to the grid electrode of the energy storage switch tube Q1, the CS pin of the driving chip U1 is connected to the source electrode of the energy storage switch tube Q1 and grounded, the drain electrode of the energy storage switch tube Q1 is connected to the output end of the boost inductor L1, one end of the energy storage capacitor is connected to the output end of the boost inductor L1, and the other end of the energy storage capacitor is connected to the source electrode of the energy storage switch tube Q1. The drive chip U1 controls the on and off of the energy storage switch tube Q1, when the energy storage switch tube Q1 is turned on, the boost inductor L1 stores energy, when the energy storage switch tube Q1 is turned off, the boost inductor L1 induces voltage, and the stored energy is stored in the energy storage capacitor when being turned on, so that the purpose of shaping a current waveform is achieved, the current waveform tracks the waveform of the voltage in the whole period, the power factor is improved, the energy efficiency of the device is improved, and the power consumption is reduced.

As another embodiment of the power supply circuit, the power supply circuit further includes a differential mode inductor LF1, a safety capacitor CX1, and a fuse F1, the input end of the fuse F1 is connected to the live wire end L of the alternating current, the output end of the fuse F1 is connected to the a pin of the differential mode inductor LF1, the b pin of the differential mode inductor LF1 is connected to the zero line end N of the alternating current, one end of the safety capacitor CX1 is connected to the c pin of the differential mode inductor LF1 and the a pin of the common mode inductor LF2, and the other end of the safety capacitor CX1 is connected to the d pin of the differential mode inductor LF1 and the b pin of the common mode inductor LF 2. When the current exceeds a specified value, the fuse F1 is disconnected, overcurrent protection is realized, the differential mode interference noise is filtered out through the fact that the inductance of the differential mode inductor LF1 to the differential mode high-frequency interference is large and the capacitance of the safety capacitor CX1 to the high-frequency interference is small, and the effect of suppressing the differential mode high-frequency interference noise is achieved.

Optionally, the power supply circuit further includes an adjustable resistor VR1 and a thermistor NTC1, where the thermistor NTC1 is connected in series between the fuse F1 and the differential mode inductor LF1, and one end of the adjustable resistor VR1 is connected to a connection end of the fuse F1 and the thermistor NTC1, and the other end is connected to the zero line end N. By the characteristic that the thermistor NTC1 has a large resistance at the moment of power on and a small resistance after the power is continuously turned on, surge current is suppressed at the moment of power on, and when the power is stable, the load operation is not affected by the small resistance. And the adjustable resistor VR1 can release the voltage on the safety capacitor CX1 when the power supply is disconnected, so that the circuit is ensured to be safe and reliable.

Optionally, the power supply circuit further includes a bleeder resistor, and the bleeder resistor is parallelly connected in safety capacitor CX1, when the power breaks down suddenly, because the inductance has the characteristic that the electric current can not break, can produce counter potential at the inductance both ends, and the bleeder resistor can absorb the electric current, reduces the counter potential of differential mode inductance LF1 to release the residual voltage at electric capacity both ends, ensure the security of device.

Considering the electrical gap between the hot and neutral wires, the bleeder resistor is provided with a first bleeder resistor RA and a second bleeder resistor RB, the first bleeder resistor RA being connected in series with the second bleeder resistor RB.

As another embodiment of the power supply circuit, the power supply circuit further includes a pi-type filter, where the pi-type filter is connected to an output end of the rectifying bridge BD1, and filters the current output by the rectifying bridge BD1 to eliminate residual ac rectified by the rectifying bridge BD 1.

Specifically, the pi-type filter comprises a filter capacitor and a filter resistor R2, the filter capacitor comprises a first filter capacitor C1 and a second filter capacitor C2, one end of the first filter capacitor C1 is connected to the input end of the boost inductor L1, the other end of the first filter capacitor C1 is connected to the 4 pin of the rectifier bridge BD1, one end of the second filter capacitor C2 is connected to the output end of the boost inductor L1, the other end of the second filter capacitor C2 is connected to the 4 pin of the rectifier bridge BD1, the filter resistor R2 is connected in parallel to the boost inductor L1, the voltage output by the rectifier bridge BD1 is filtered through the first filter capacitor C1, and then the ripple wave is reduced again through the second filter capacitor C2 and the filter resistor R2, so that noise and harmonic signals from a power supply and a circuit side are suppressed, and meanwhile, the filter resistor R2 can reduce peak current of the boost inductor L1 and the energy storage switch tube Q1 at the starting moment, the boost inductor L1 is prevented from being saturated, and the energy storage switch tube Q1 is protected to work normally. The residual alternating current rectified by the rectifier bridge BD1 is converted into bypass backflow by utilizing the characteristic of the capacitor isolated direct current, and the output voltage is close to the peak value of the original pulsating voltage by the peak charging characteristic of the capacitor, so that the forward voltage drop of the rectifier tube is compensated, the output efficiency is improved, and the power factor is improved and the energy consumption is reduced.

Preferably, the power supply circuit is further provided with an auxiliary transformer LX1 and a fast recovery diode D5, the 1 end of the auxiliary transformer LX1 is connected to the output end of the boost inductor L1, the 2 end of the auxiliary transformer LX1 is connected to the ZCD pin of the driving chip U1, the 3 end of the auxiliary transformer LX1 is connected to the positive electrode of the fast recovery diode D5, at this time, the drain electrode of the energy storage switch tube Q1 is also connected to the positive electrode of the fast recovery diode D5, one end of the energy storage capacitor is connected to the negative electrode of the fast recovery diode D5, the 4 end of the auxiliary transformer LX1 is grounded, and the 2 end and the 3 end of the auxiliary transformer LX1 are the same name ends. When the current flowing through the boost inductor L1 is close to zero, zero current information is transmitted to the driving chip U1, the auxiliary transformer LX1 is used for providing zero current detection information, so that the driving chip U1 automatically performs state switching when the voltage is lower than zero, and further the state change of the energy storage switch tube Q1 is controlled, and the control of current waveforms is realized.

Optionally, a protection resistor R6 is connected in series between the auxiliary transformer LX1 and the ZCD pin of the driving chip U1 to realize impedance matching and adjust signal quality, thereby eliminating problems such as overshoot and ringing.

Preferably, the power supply circuit further comprises a bypass diode D4, the anode of the bypass diode D4 is connected to the 1 end of the auxiliary transformer LX1, the cathode of the bypass diode D4 is connected with the cathode of the fast recovery diode D5, and the bypass diode D4 shares impact current when the power supply circuit is started to protect the fast recovery diode D5 from working normally.

Optionally, the power supply circuit is further provided with a first magnetic bead FB1 and a second magnetic bead FB2, one end of the first magnetic bead FB1 is connected to the 3 end of the auxiliary transformer LX1, the other end is connected to the positive electrode of the fast recovery diode D5, one end of the second magnetic bead FB2 is connected to the 3 end of the auxiliary transformer LX1, and the other end is connected to the drain electrode of the energy storage switching tube Q1. The first magnetic bead FB1 and the second magnetic bead FB2 show resistance at high frequency, and can keep higher impedance in a quite wide frequency range, so that the frequency modulation filtering effect is improved.

Specifically, the power supply circuit further comprises a plurality of protection resistors and protection capacitors. The protection resistor R3 is connected in series with the protection resistor R4, one end of the protection resistor R3 is connected to the output end of the boost inductor L1, and one end of the protection resistor R4 is connected to the MUL pin of the driving chip U1. One end of the protection resistor R5 is connected to the VCC pin of the driving chip U1, and the other end is connected to the VCC end of the PFC power supply. One end of the protection resistor R6 is connected to the ZCD pin of the driving chip U1, and the other end is connected to the 2 end of the auxiliary transformer LX 1. One end of the protection capacitor C3 is connected to the VCC pin of the driving chip U1, and the other end is connected to the 4 pin of the rectifier bridge BD 1. One end of the protection resistor R8 is connected to the source of the energy storage switch tube Q1, and the other end is connected to the 4 pin of the rectifier bridge BD1 and grounded. The protection resistor R11 is connected in series between the CS pin of the driving chip U1 and the source of the energy storage switch Q1. The protection capacitor C4 is connected in parallel with the bypass diode D4, and the connection end of the protection capacitor C4 and the anode of the bypass diode D4 is connected to the power network PV end. The protection capacitor C5 is connected with the protection resistor R13 in series, one end of the protection resistor R13 is connected to the VCTRL pin of the driving chip U1, and one end of the protection capacitor C5 is connected to the 4 pin of the rectifier bridge BD1 and grounded. The protection capacitor C6 is connected in parallel to the protection capacitor C5 and the protection resistor R13. One end of the protection resistor R9 is connected to the grid electrode of the energy storage switch tube Q1, and the other end of the protection resistor R9 is connected to the source electrode of the energy storage switch tube Q1. The protection resistor R12 and the protection capacitor C7 are connected in parallel between the MUL pin of the driving chip U1 and the pin of the rectifier bridge BD 14. One end of the protection capacitor C8 is connected to the pin U1CS of the driving chip, and the other end is connected to the pin 4 of the rectifier bridge BD1 and grounded. One end of the protection capacitor C9 is connected to the drain electrode of the energy storage switch tube Q1, and the other end of the protection capacitor C is connected to the 4 pin of the rectifier bridge BD1 and grounded. Through protection resistor and protection capacitor, ensure that the inside components and parts of circuit do not receive surge current influence when power supply circuit starts transiently, guarantee circuit safety when guaranteeing the power supply stability.

Preferably, the power supply circuit further includes an on resistor R7, a driving diode D3, and an off resistor R10. The driving diode D3 is connected with the turn-off resistor R10 in series, the positive electrode of the driving diode D3 is connected with the grid electrode of the energy storage switch tube Q1, one end of the turn-off resistor R10 is connected with the pin of the driving chip U1DRV, and the turn-on resistor R7 is connected with the driving diode D3 and the turn-off resistor R10 in parallel. The on resistor R7 is used for adjusting the on speed of the energy storage switching tube Q1, the off resistor R10 is smaller than the on resistor R7, so that the loss is reduced more rapidly due to the fact that the off speed is higher, the on resistor R7 is isolated from the off resistor R10 by the driving diode D3, and the risk of parasitic conduction is avoided.

Optionally, the power supply circuit is provided with a plurality of energy storage capacitors, and the plurality of energy storage capacitors are connected in parallel to store electric energy together.

Preferably, the energy storage capacitor is a polarization capacitor, and in this embodiment, the power supply circuit includes a first energy storage capacitor CE1, a second energy storage capacitor CE2, and a third energy storage capacitor CE3 connected in parallel, where an anode of the first energy storage capacitor CE is connected to a cathode of the fast recovery diode D5 and is connected to an HV end of the power supply network, and a cathode of the first energy storage capacitor CE is grounded.

As shown in fig. 3, more preferably, the power module further includes a constant voltage circuit, and the current passing through the power supply circuit is converted into a suitable voltage by the constant voltage circuit to provide constant voltage driving for the track lamp.

The constant voltage circuit at least comprises a constant voltage chip U2, a constant voltage tube, a driving transformer T1 and a rectifier. The input end of the constant voltage chip U2 is connected with the PV end and the HV end of the power supply network and is used for receiving the DC voltage signal containing the pulsation component converted by the power supply circuit. The output end of the constant voltage chip U2 is connected with the input end of the constant voltage tube, the output end of the constant voltage tube is connected with the input end of the driving transformer T1, and meanwhile, the HV of the power supply network is connected with the input end of the constant voltage tube to provide conversion voltage. The output end of the driving transformer T1 is connected with the input end of the rectifier, square wave voltage is obtained through transformation of the driving transformer T1, and then direct current voltage is output after rectification of the rectifier, so that the magnetic track lamp is powered.

The rectifier includes rectification triode Q5 and rectification chip U3 at least, and rectification triode Q5's base ground connection, rectification triode Q5's projecting pole is connected in rectification chip U3's OUT pin, and drive transformer T1's output and rectification chip U3's VCC end are connected to rectification triode Q5's collecting electrode.

Specifically, the constant voltage circuit further comprises a plurality of constant voltage resistors and protective capacitors. The constant voltage resistor R20, the constant voltage resistor R19 and the constant voltage resistor R18 are connected in series, one end of the constant voltage resistor R20 is connected to the HV end of the power supply network, one end of the constant voltage resistor R18 is connected to one end of the constant voltage resistor R17 and one end of the protection capacitor C10, the other end of the constant voltage resistor R17 is connected to the constant voltage resistor R16, and the other end of the constant voltage resistor R16 is connected to the PFC_FB pin of the constant voltage chip U2. The connecting end of the constant voltage resistor R16 and the constant voltage resistor R17 is connected to one end of the constant voltage resistor R15, the other end of the constant voltage resistor R15 is grounded, the constant voltage resistor R14 is connected to two ends of the constant voltage resistor R15 in parallel, and the other end of the protection capacitor C10 is connected to the connecting end of the constant voltage resistor R14 and the constant voltage resistor R15 and grounded. One end of the protection capacitor C21 is connected to the PFC_FB pin of the constant voltage chip U2, and the other end of the protection capacitor C is connected to the connection end of the constant voltage resistor R14 and the constant voltage resistor R15 and grounded. The constant voltage resistor R24, the constant voltage resistor R25 and the constant voltage resistor R26 are connected in series, one end of the constant voltage resistor R24 is connected to the PV end of the power supply network, and one end of the constant voltage resistor R26 is connected to the HV pin of the constant voltage chip U2. One end of the constant voltage resistor R41 is connected to the REM pin of the constant voltage chip U2, and the other end is grounded. The protection capacitor C22 is connected in parallel to both ends of the constant voltage resistor R41. One end of the protection capacitor C23 is connected to the LLC_FB pin of the constant voltage chip U2, the other end of the protection capacitor C is grounded, and the constant voltage resistor R42 is connected in parallel to two ends of the protection capacitor C23. One end of the constant voltage resistor R40 is connected to the LLC_CS pin of the constant voltage chip U2, and the other end is connected to the CS end. One end of the constant voltage resistor R36 is connected to the OVP pin of the constant voltage chip U2, and the other end is connected to the VCC end. The constant voltage resistor R39 is connected with the protection capacitor C20 in parallel, one end of the constant voltage resistor R39 is connected to the OVP pin of the constant voltage chip U2, and the other end of the constant voltage resistor R39 is grounded. One end of the constant voltage resistor R38 is connected to the PON/OFF pin of the constant voltage chip U2, and the other end is grounded. The current interference is filtered through the constant voltage resistor and the protection capacitor, so that the accuracy of a current signal is ensured. It can be understood that the HV pin of the constant voltage chip U2 is a high voltage start input current source, which is used for starting the current source and dynamically self-powering; the PFC_FB pin of the constant voltage chip U2 is a correction feedback end of the constant voltage chip U2; the REM pin of the constant voltage chip U2 is a pin connected with the adapting end of the constant voltage chip U2, the adapting end is accessed into the constant voltage chip U2 through the REM pin, the constant voltage chip U2 can be controlled, the external control off mode input is carried out, and the adapting end can be an external device; the LLC_FB pin of the constant voltage chip U2 is an oscillation feedback end, and the oscillation frequency of LLC is controlled by accessing the FB terminal; the LCC_CS pin of the constant voltage chip U2 is an LLC current induction input end and is used for realizing LLC overload protection, load current is reflected to the main side of the transformer, and when the current exceeds a protection threshold value, the CS end of the constant voltage chip U2 connected through the LCC_CS pin senses the current and the time threshold value input by the LLC, so that overcurrent protection is carried out; the OVP pin of the constant voltage chip U2 is an overvoltage protection end, and when the voltage exceeds a threshold value, the voltage is released through the protection capacitor C20, so that the circuit safety is ensured; the PON/OFF pin of the constant voltage chip U2 is turned OFF for FB regulation, which is turned OFF below the PFC stage.

As another example of the constant voltage circuit, the constant voltage circuit further includes a phototransistor U3-a and a zener diode ZD2. The collector of the phototriode U3-A is connected to the LLC_FB pin of the constant voltage chip U2, and the emitter of the collector of the phototriode U3-A is grounded; the positive pole of the zener diode ZD2 is connected to the OVP pin of the constant voltage chip U2, and the negative pole of the zener diode ZD2 is connected to one end of the constant voltage resistor R36. Induced current is formed through the phototriode U3-A, so that overvoltage protection is triggered when the voltage is overlarge, and the voltage stabilizing diode ZD2 and the constant voltage resistor R36 ensure circuit voltage stabilization.

More specifically, the pfc_m pin of the constant voltage chip U2 is connected to the positive electrode of the diode D2, and the negative electrode of the diode D2 is connected to the power VCC terminal. The VCC pin of constant voltage chip U2 is connected in constant voltage resistance R31's one end, and constant voltage resistance R31's the other end is connected in constant voltage triode Q4's projecting pole, and constant voltage triode Q4's collecting electrode is connected in the polarity end of driving transformer T11 end, and constant voltage triode Q4's base ground. The GND pin of the constant voltage chip U2 is grounded. The ML pin of the constant voltage chip U2 is connected to the grid of the constant voltage tube Q3, the source electrode of the constant voltage tube Q3 is connected to the nonpolar end of the driving transformer T12 and grounded, and the drain electrode of the constant voltage tube Q3 is connected to the source electrode of the constant voltage tube Q2. The MH pin of the constant voltage chip U2 is connected with the grid electrode of the constant voltage tube Q2, the drain electrode of the constant voltage tube Q2 is connected with the HV end of the power supply network, and the source electrode of the constant voltage tube Q2 is connected with the polar end of the T12 end of the driving transformer. The HB pin of the constant voltage chip U2 is connected to the drain electrode of the constant voltage tube Q3. The VBOOT pin of the constant voltage chip U2 is connected to the emitter of the constant voltage triode Q4. The PFC_M pin of the constant voltage chip U2 is used for controlling PFC and a high-voltage switch and providing a PFC voltage front-stage controller; the VCC pin of the constant voltage chip U2 is a power supply pin; the GND pin of the constant voltage chip U2 is a grounding pin; the ML pin of the constant voltage chip U2 is a down tube driving pin; the MH pin of the constant voltage chip U2 is an upper tube driving pin; the HB pin of the constant voltage chip U2 is a half-bridge driving pin and is used for realizing half-bridge driving connection; the VBOOT pin of the constant voltage chip U2 is a self-contained voltage pin and is used for providing VCC power supply of the last time sequence.

Preferably, one end of the protection capacitor C15 is connected to the VCC pin of the constant voltage chip U2, and the other end is grounded. The positive electrode of the polar capacitor CE5 is connected with the emitter electrode of the constant voltage triode Q4, and the negative electrode is grounded. The positive electrode of the zener diode ZD1 is grounded, and the negative electrode is connected to the base electrode of the constant voltage triode Q4. One end of the constant voltage resistor R29 is connected to the base electrode of the constant voltage triode Q4, and the other end is connected to the collector electrode of the triode Q4. The positive pole of the polar capacitor CE4 is connected to the collector of the constant voltage triode Q4 and to the power supply VCC end, and the negative pole is grounded. The constant voltage resistor R37, the protection capacitor C18 and the protection capacitor C19 are connected in parallel, one end of the constant voltage resistor R is connected to the protection capacitor C17, the other end of the constant voltage resistor is grounded, one end of the constant voltage resistor is connected to the protection capacitor C17, and meanwhile, the constant voltage resistor is also connected to the CS end and used for receiving LLC input current signals, and the other end of the protection capacitor C17 is connected to the nonpolar end of the T12 end of the driving transformer.

Optionally, the negative electrode of the diode D7 is connected to the ML pin of the constant voltage chip U2, and the positive electrode is connected to the gate of the constant voltage tube Q3. One end of the constant voltage resistor R32 is connected to the negative electrode of the diode D7, and the other end is connected to the positive electrode of the diode D7. One end of the constant voltage resistor R30 is connected to the gate of the constant voltage tube Q3, and the other end is connected to the source of the constant voltage tube Q3. The constant voltage resistors R45, R46 and R47 are connected in series and connected in parallel with the protection capacitor C34, one end of the parallel connection end is connected to the source electrode of the constant voltage tube Q3 and grounded, and the other end of the parallel connection end is connected to the non-polar end of the drive transformer T12.

Preferably, one end of the constant voltage resistor R34 is connected to the MH pin of the constant voltage chip U2, the other end is connected to the cathode of the diode D6, the anode of the diode D6 is connected to the gate of the constant voltage tube Q2, one end of the constant voltage resistor R27 is connected to the anode of the diode D6, and the other end is connected to the cathode of the diode D6. One end of the constant voltage resistor R28 is connected to the gate of the constant voltage tube Q2, and the other end is connected to the HB pin of the constant voltage chip U2. One end of the inductor LX2 is connected to the polar end of the driving transformer T12, and the other end is connected to the source of the constant voltage tube Q2. One end of the protection capacitor C13 is connected to the drain of the constant voltage tube Q2, and the other end is connected to the source of the constant voltage tube Q2. One end of the protection capacitor C14 is connected to the drain of the constant voltage tube Q3, and the other end is connected to the source of the constant voltage tube Q3. One end of the protection capacitor C16 is connected to the HB pin of the constant voltage chip U2, the other end of the protection capacitor C is connected to the cathode of the diode D8, the anode of the diode D8 is connected to one end of the constant voltage resistor R33, and the other end of the constant voltage resistor R33 is connected to the emitter of the triode Q4. The constant voltage resistor R43 and the constant voltage resistor R44 are connected in parallel, one end of the parallel end is connected to the collector of the triode Q4, the other end of the parallel end is connected to the cathode of the diode D9, the anode of the diode D9 is connected with the polar end of the driving transformer T11, and the nonpolar end of the driving transformer T11 is grounded.

Further, the diode D10 and the diode D11 are connected in parallel in the same direction, the anode of the parallel connection is connected to the polar terminal of the driving transformer T13, and the cathode of the parallel connection is connected to the voltage output terminal v_out terminal. The diode D12 and the diode D13 are connected in parallel in the same direction, the anode of the parallel connection is connected with the nonpolar end of the driving transformer T14, and the cathode of the parallel connection is connected with the cathode of the parallel connection of the diode D10 and the diode D11. The non-polar end of the drive transformer T13 is connected with the polar end of the drive transformer T14. The positive pole of the polar capacitor is connected with the parallel negative poles of the diode D10 and the diode D11, and the negative pole of the polar capacitor is connected with the non-polar end of the driving transformer T13 and the polar end connecting end of the driving transformer T14 and is grounded.

Preferably, the protection resistor R53 and the protection resistor R54 are connected in series between the VCC pin of the rectifier chip U3 and the voltage output terminal v_out terminal. The GND pin of the rectification chip U3 is grounded. One end of the protection capacitor C31 is connected to the VCC pin of the rectifying chip U3, and the other end is grounded. The collector of the rectifying tube Q5 is connected to the connection end of the protection resistor R53 and the protection resistor R54, the emitter of the rectifying tube Q5 is connected to the VCC pin of the rectifying chip U3, the base of the rectifying tube Q5 is connected to the cathode of the voltage stabilizing diode ZD3, the anode of the voltage stabilizing tube ZD3 is grounded, and the protection resistor R49 is connected in series between the base and the collector of the rectifying tube Q5. One end of the protection resistor R52 is connected to the OUT pin of the rectifying chip U3, the other end of the protection resistor R52 is connected to one end of the protection capacitor C29, and the other end of the protection capacitor C29 is connected to the ISEN pin of the rectifying chip U3. One end of the protection capacitor C28 is connected to the ISEN pin of the rectifier chip U3, and the other end is grounded. One end of the protection resistor R62 IS connected to an ISEN pin of the rectifier chip U3, and the other end IS connected to the IS end. The current limit of the trimming chip is realized through the resistor R26, so that the overcurrent protection is realized.

As yet another embodiment of the constant voltage circuit, one end of the protection capacitor C25 is connected to the VREF pin of the rectifier chip U3, and the other end is grounded, and the VREF pin of the rectifier chip U3 is used for load power supply. One end of the protection resistor R50 is connected to an ADIM pin of the rectifying chip U3, the other end of the protection resistor R50 is connected to a VREF pin of the rectifying chip U3, and the ADIM pin of the rectifying chip U3 is used for direct current control. One end of the protection capacitor C26 is connected to the DCDIM pin of the rectifier chip U3, the other end of the protection capacitor C is grounded, and the DCDIM pin of the rectifier chip U3 is used for direct current regulation. The VSEN pin of the rectifying chip U3 is connected to the VS end and used for detecting voltage, and the working state of the regulating circuit can be realized by controlling the voltage through the VS end.

Optionally, one end of the protection capacitor C24 is connected to the ADIM pin of the rectifying chip U3, and the other end is grounded. The protection resistor R51 is connected in series with the protection capacitor C27 and is connected in parallel with the protection capacitor C30, one end of the parallel connection end is connected to the VSEN pin of the rectifier chip U3, and the other end is connected to the OUT pin of the rectifier chip U3.

Specifically, the positive electrode of the isolation tube U3-B is connected to one end of the rectifying resistor R56, the other end of the rectifying resistor R56 is connected to the positive electrode of the zener diode ZD4, and the negative electrode of the zener diode ZD4 is connected to the voltage output end V_OUT. The negative pole of isolation tube U3-B is connected to the OUT pin of rectifier chip U3, and rectifier resistor R55's one end is connected to the positive pole of isolation tube U3-B, and the other end is connected to the negative pole of isolation tube U3-B. The pin 1 of the three-pin zener diode ZD5 is connected to the cathode of the isolation tube U3-B, the pole 3 is grounded, the pin 2 is connected to the parallel connection end of the rectifying resistor R58 and the rectifying resistor R59, and the other end of the rectifying resistor R58 and the rectifying resistor R59, which are connected in parallel, is grounded. The protection resistor R57 is connected in series with the protection capacitor C32 and is connected in parallel with the protection capacitor C33, one end of the parallel connection is connected with the 1 pin of the three-pin zener diode ZD5, and the other end of the parallel connection is connected with one end of the rectifying resistor R60 and is connected with the VS end. The rectifying resistor R60 is connected in series with the rectifying resistor R61, and one end of the rectifying resistor R61 is connected to the voltage output terminal v_out terminal.

As shown in fig. 4, the power module further includes a detection circuit for detecting on/off of the power supply. The detection circuit comprises a constant voltage resistor R21, a constant voltage resistor R22, a diode D1, a photoelectric coupler U4, a protection capacitor C36, a constant voltage resistor R70, a constant voltage resistor R69, a constant voltage resistor R73 and a detection triode Q6. The constant voltage resistor R21 and the constant voltage resistor R22 are connected in series, one end of the constant voltage resistor R21 is connected to the switch end SW1, and one end of the constant voltage resistor R22 is connected to the emitter cathode of the photocoupler U4. The anode of the diode D1 is connected to the switch terminal SW2 and the emitter anode of the photo coupler U4, and the cathode of the diode D1 is connected to the emitter cathode of the photo coupler U4. One end of the protection capacitor C36 is connected with the C pole of the receiving end of the photoelectric coupler U4, and the other end of the protection capacitor C is connected with the E pole of the receiving end of the photoelectric coupler U4 and grounded. One end of the constant voltage resistor R69 is connected to the C pole of the receiving end of the photoelectric coupler U4, and the other end is connected to the power supply voltage end. One end of the constant voltage resistor R70 is connected with the C pole of the receiving end of the photoelectric coupler U4, and the other end is connected with the base electrode of the detection triode Q6. The emitter of the detection triode Q6 is connected with the E pole of the receiving end of the photoelectric coupler U4 and grounded, the collector of the detection triode Q6 is connected with one end of the constant voltage resistor R73 and is connected with the AC output end, and the other end of the constant voltage resistor R73 is connected with the power supply voltage end. The diode D1 serves to protect the emitter of the photo coupler U4 from breakdown. After the power supply is conducted, the emitter of the photoelectric coupler U4 emits light, the receiving end is conducted, so that the detection triode Q6 is cut off, and the AC output end is high level; when the power supply is turned off, the emitter of the photoelectric coupler U4 does not emit light, the receiving end is not conducted, the detection triode Q6 is conducted, the AC output end is of a low level, and accordingly the on-off of the power supply can be judged by detecting the power supply voltage of the AC output end.

Optionally, the power supply voltage terminal in the detection circuit is a 3.3V voltage terminal.

As shown in fig. 5, the conversion module further includes at least a conversion circuit and a signal receiving circuit, wherein an input end of the conversion circuit is connected to an output end of the constant voltage circuit, an output end of the conversion circuit is connected to an input end of the signal receiving circuit, an output end of the signal receiving circuit is connected to the dimming module, the conversion circuit receives a voltage from the constant voltage circuit and performs voltage reduction and voltage stabilization to provide a stable voltage for the signal receiving circuit, and the signal receiving circuit is used for receiving a control signal from the outside, converting the control signal and outputting the control signal to the dimming module to realize dimming control.

Specifically, the voltage output terminal v_out terminal of the constant voltage circuit is connected to the input terminal of the conversion circuit. The conversion circuit includes: diode D14, polarity capacitor CE7, buck chip U14, inductor L4, protection capacitor C35, protection resistor R68, protection resistor R67, polarity capacitor CE8, and voltage regulator U13. The voltage output terminal v_out terminal is connected to the positive electrode of the diode D14, and the negative electrode of the diode D14 is connected to the VIN pin of the buck chip U14, i.e. the voltage input terminal, to provide the converted voltage. The negative electrode of the diode D14 is also connected to the positive electrode of the polar capacitor CE7, and the negative electrode of the polar capacitor CE7 is grounded. The SW pin of the buck chip U14 is connected to one end of the inductor L4, and the other end of the inductor L4 is connected to the first voltage end and the VIN pin of the voltage regulator U13, i.e. an inductor is connected in series between the output end of the buck chip U14 and the input end of the voltage regulator U13, for storing electric energy. The GND pin of the buck chip U14 is grounded. The FB pin of the buck chip U14 is connected to one end of the protection capacitor C35, and the other end of the protection capacitor C35 is grounded. One end of the protection resistor R68 is connected to the FB pin of the buck chip U14, and the other end is grounded. One end of the protection resistor R67 is connected to the FB pin of the buck chip U14, and the other end is connected to the VIN pin of the voltage stabilizer U13. The positive electrode of the polar capacitor CE8 is connected to the first voltage terminal and the VIN pin of the voltage regulator U13, and the other end is grounded.

Further, the VOUT pin of the voltage regulator U13 is connected to the input terminal of the signal receiving circuit. The signal receiving circuit includes: the module interface B1, the conversion chip U7, the crystal oscillator tube Y1, the protection capacitor C43, the protection capacitor C42, the protection capacitor C41, the protection resistor R74, the protection capacitor C37, the protection capacitor C38, the inductor L5, the protection capacitor C40 and the antenna ANT. The conversion chip U7 receives the wireless signal from the ANT antenna, converts the wireless signal into PWM signal output, the module interface B1 receives wireless data from the outside, converts the wireless data into a PWM form, and outputs PWM form signals through the PWM1 end and the PWM2 end to control the dimming module to perform dimming. Specifically, the VOUT pin of the voltage regulator U13 is connected to the 1 end of the module interface B1 and to the VCC pin of the conversion chip U7, and at the same time, the second voltage end is connected to the VOUT pin of the voltage regulator U13. The GND pin of the voltage regulator U13 is grounded. The 2 end of the module interface B1 is grounded, the 3 end of the module interface B1 is connected with the PWM1 end, the 4 end of the module interface B1 is connected with the PWM2 end, the 5 end of the module interface B1 is connected with the AC end, and the module interface is used for receiving external wireless signals and converting the external wireless signals into a PWM form to be output. The XIN pin of the conversion chip U7 is connected with the 1 pin of the crystal oscillator tube Y1, the 3 pin of the crystal oscillator tube Y1 is connected with the XOUT pin of the conversion chip, and the 2 pin and the 4 pin of the crystal oscillator tube Y1 are grounded. The VDD0 pin of the conversion chip U7 is connected to one end of the protection capacitor C43, and the other end of the protection capacitor C43 is connected to the 4 pin of the crystal oscillator Y1. The VCC pin of the conversion chip U7 is connected with the VOUT pin of the voltage regulator U13 and is connected with one end of the protection capacitor C42, the other end of the protection capacitor C42 is grounded, and the protection capacitor C41 is connected with the protection capacitor C42 in parallel. The P00 pin of the conversion chip U7 is connected to the PWM1 end, and the P01 pin of the conversion chip U7 is connected to the PWM2 end. The P02 pin of the conversion chip U7 is connected to one end of the protection resistor R74, and the other end is connected to the VCC pin of the conversion chip U7. The P03 pin of the conversion chip U7 is connected to the AC end and is used for receiving a power on-off signal from the AC end. The ANTB pin of the conversion chip U7 is connected to one end of the protection capacitor C40, and the other end of the protection capacitor C40 is connected to the antenna ANT. The conversion chip ANT pin is connected to one end of the inductor L5, and the other end of the inductor L5 is connected to the ANTB pin of the conversion chip U7. The VSS pin of the conversion chip U7 is grounded, one end of the protection capacitor C37 is connected to the ANTB pin of the conversion chip U7, the other end of the protection capacitor C37 is connected to the VSS pin of the conversion chip U7, one end of the protection capacitor C38 is connected to the ANTB pin of the conversion chip U7, and the other end of the protection capacitor C38 is connected to the VSS pin of the conversion chip U7.

Optionally, the first voltage terminal is a 12V voltage terminal, and the second voltage terminal is a 3.3V voltage terminal.

As shown in fig. 6, the dimming module at least includes an amplifying circuit and an output circuit, wherein an input end of the amplifying circuit is connected to a signal output end of the converting circuit, an output end of the amplifying circuit is connected to an input end of the output circuit, and an output end of the output circuit is connected to the lighting module. The signal output by the conversion circuit is amplified by the amplifying circuit, then input to the output circuit, and the output circuit realizes dimming control according to the change of the signal control level. The amplifying circuit includes: the amplifying chip U10, the protection capacitor C47, the protection resistor R83, the protection capacitor C50, the protection capacitor C48, the protection resistor R84 and the protection resistor R85. Specifically, the PWM1 end is connected to the INA pin of the amplifying chip U10, the PWM2 end is connected to the INB pin of the amplifying chip U10, and the amplifying chip U10 obtains the PWM signal from the conversion module and performs the dimming control correspondingly. The VIN pin of the amplifying chip U10 is connected to the third voltage end, the GND pin of the amplifying chip U10 is grounded, one end of the protection capacitor C47 is connected to the VIN pin of the amplifying chip U10, and the other end is connected to the GND pin of the amplifying chip U10. The OUTA pin of the amplifying chip U10 is connected to the input end 1 of the output circuit, the OUTB pin of the amplifying chip U10 is connected to the input end 2 of the output circuit, the dimming signals amplified by the amplifying chip U10 enter the output circuit from the input end 1 of the output circuit and the input end 2 of the output circuit respectively, and the signals enter different input ends to control the high and low levels of the output circuit, so that the dimming control of the lighting module is realized. The CS pin of the amplifying chip U10 IS connected to one end of the protection resistor R83, and the other end of the protection resistor R83 IS connected to the IS end, namely the no-load current end. The LDO pin of the amplifying chip U10 is connected to one end of a protection resistor R85, and the other end of the protection resistor is connected to a fourth voltage end. One end of the protection capacitor C50 is connected to the CS pin of the amplifying chip U10, and the other end of the protection capacitor C50 is grounded. One end of the protection capacitor C48 is connected to the LDO pin of the amplifying chip U10, and the other end is grounded. One end of the protection resistor R84 is connected to the CS pin of the amplifying chip U10, and the other end is grounded.

Optionally, the third voltage terminal is a 12V voltage terminal, and the fourth voltage terminal is a 3.3V voltage terminal.

Further, the output circuit at least includes a first output chip U8, a first output pipe Q7, a second output chip U9, and a second output pipe Q10. The VCC pin of the first output chip U8 is connected to the fifth voltage terminal, the HIN pin of the first output chip U8 is connected to the OUTA pin of the amplifying chip U10, the HO pin of the first output chip U8 is connected to the grid of the first output pipe Q7, the drain electrode of the first output pipe Q7 is connected to the voltage output terminal V_OUT terminal, and the source electrode of the first output pipe Q7 is connected to the connecting terminal CN2. The VCC pin of the second output chip U9 is connected to the sixth voltage terminal, the HIN pin of the second output chip U9 is connected to the OUTB pin of the amplifying chip U10, the LO pin of the second output chip U9 is connected to the gate of the second output pipe Q10, the drain of the second output pipe Q10 is connected to the voltage output terminal v_out terminal, and the source of the second output pipe Q10 is connected to the connection terminal CN2. The output end of the connection terminal CN2 is connected to the lighting module, at this time, when the first output chip U8 and the second output chip U9 receive the control signals from the amplifying circuit, the HO pin of the first output chip U8 and the LO pin of the second output chip U9 output the corresponding high-low level respectively, when the outputs are all high levels, the first output tube Q7 and the second output tube Q10 are all turned on, so as to control the lighting module to perform lighting, and through the control of the high-low level, the conduction time of the first output tube Q7 and the second output tube Q10 is controlled, so as to control the brightness and the color temperature of the lighting module.

Optionally, the fifth voltage terminal is a 12V voltage terminal, and the sixth voltage terminal is a 12V voltage terminal.

Specifically, the LIN pin of the first output chip U8 is connected to one end of the protection resistor R87, and the other end of the protection resistor R87 is connected to the HIN pin of the first output chip U8. The GND pin of the first output chip U8 is grounded. One end of the protection capacitor C46 is connected to the fifth voltage end, and the other end of the protection capacitor C46 is grounded. One end of the protection resistor R86 is connected to the VCC pin of the first output chip U8, and the other end of the protection resistor R86 is connected to the HIN pin of the first output chip U8. The VB pin of the first output chip U8 is connected to the cathode of the diode D20, and the anode of the diode D20 is connected to the fifth voltage end. The HO pin of the first output chip U8 is connected to the cathode of the diode D16, the anode of the diode D16 is connected to the grid electrode of the first output tube Q7, one end of the protection resistor R75 is connected to the cathode of the diode D16, and the other end of the protection resistor R75 is connected to the anode of the diode D16. The VS pin of the first output chip U8 is connected to the source of the first output pipe Q7, one end of the protection capacitor C44 is connected to the VB pin of the first output chip U8, and the other end of the protection capacitor C44 is connected to the VS pin of the first output chip U8. The LO pin of the first output chip U8 is connected to one end of the protection resistor R76, the other end of the protection resistor R76 is connected to the grid of the first protection tube Q8, the cathode of the diode D17 is connected to the LO pin of the first output chip U8, and the anode of the diode D17 is connected to the grid of the first protection tube Q8 and to the G1 end. The drain electrode of the first protection tube Q8 is connected to the source electrode of the first output tube Q7, the source electrode of the first protection tube Q8 is connected to the negative electrode of the polar capacitor CE9, and the positive electrode of the polar capacitor CE9 is connected to the drain electrode of the first output tube. The 1 end of the common-mode inductor LF3 is connected to the connection end of the drain of the first protection tube Q8 and the source of the first output tube Q7. One end of the protection resistor R82 is connected to the HIN pin of the second output chip U9, and the other end is connected to the LIN pin of the second output chip U9. One end of the protection resistor R81 is connected to the VCC pin of the second output chip U9, and the other end is connected to the LIN pin of the second output chip U9. One end of the protection capacitor C49 is connected to the sixth voltage terminal, and the other end is grounded. The GND pin of the second output chip U9 is grounded. The VB pin of the second output chip U9 is connected to the cathode of the diode D21, and the cathode of the diode D21 is connected to the sixth voltage end. The HO pin of the second output chip U9 is connected to the cathode of the diode D18, the anode of the diode D18 is connected to the gate of the second protection tube Q9, and the drain of the second protection tube Q9 is connected to the voltage output terminal v_out terminal. One end of the protection resistor R77 is connected to the negative electrode of the diode D18, and one end of the protection resistor R77 is connected to the positive electrode of the diode D18. The VS pin of the second output chip U9 is connected to the source of the second protection tube Q9. One end of the protection capacitor C45 is connected to the VB pin of the second output chip U9, and the other end is connected to the VS pin of the second output chip U9. The LO pin of the second output chip U9 is connected to one end of the protection resistor R78, the other end of the protection resistor R78 is connected to the grid of the second output tube Q10, the negative electrode of the diode D19 is connected to the LO pin of the second output chip U9, and the positive electrode of the second output chip U9 is connected to the grid of the second output tube Q10 and connected to the G1 end. The source of the second output tube Q10 is connected to the negative electrode of the polar capacitor CE10, and the positive electrode of the polar capacitor CE10 is connected to the drain of the second protection tube Q9. The source of the second output tube Q10 is connected to the source of the second protection tube Q8. The source of the second output tube Q10 IS connected to the IS terminal. One end of the protection resistor R72 IS connected to the IS terminal, and the other end IS grounded. One end of the protection resistor R71 IS connected to the IS terminal, and the other end IS grounded. The positive electrode of the diode D15 IS connected to the IS terminal, and the negative electrode of the diode D15 IS grounded. The IS terminal IS a wire terminal for accessing the control terminal. The source of the second protection tube Q9 and the drain of the second output tube Q10 are connected to the 3 terminal of the common-mode inductor LF 3. The 2 ends of common mode inductance LF3 are connected in the V1 end of binding post CN2, and the 4 ends of binding post CN2 are connected in the V2 end of binding post CN2, and protection resistance R79 and protection resistance R80 establish ties, and protection resistance R79's one end is connected in the 2 ends of common mode inductance LF3, and protection resistance R80's one end is connected in the 4 ends of common mode inductance LF 3. The terminals G1 and G2 are output ground terminals.

In this embodiment, the power supply unit supplies alternating current to the power supply circuit, the power supply circuit filters the alternating current to output direct current to the constant voltage circuit, the constant voltage circuit steps down the direct current, and supplies constant voltage current to the lighting module to supply power to the lighting module, and meanwhile, the conversion circuit steps down the voltage output by the constant voltage circuit to output to the signal receiving circuit to supply power to the signal receiving circuit. The signal receiving circuit receives external wireless data and converts the external wireless data into PWM signals, the PWM signals are output to the amplifying circuit, the signals are amplified, interference is reduced, the PWM signals amplified by the amplifying circuit are input to the output circuit, the output circuit outputs high and low levels through the first output chip U8 and the second output chip U9 respectively, push-pull output is achieved, one of the output pipe and the protection pipe is enabled to be conducted and the other of the output pipe and the protection pipe is enabled to be cut off, the two pipes are prevented from being conducted simultaneously, the protection circuit is safe, and meanwhile, the high and low levels of time and frequency are output through the PWM signals, so that dimming of the lighting module is achieved.

Preferably, the first output chip U8 and the second output chip U9 have fixed 10ns delay, so that the first output tube Q7 and the first protection tube Q8 are not directly conducted, and the circuit safety is guaranteed.

Alternatively, the power supply circuit converts alternating current into direct current 400V voltage, the constant voltage circuit converts direct current 400V voltage into direct current 48V voltage, and the conversion circuit converts direct current 48V voltage into direct current 3.3V constant voltage output.

Optionally, the conversion chip U7 is a 2.4G wireless control module, and the module interface B1 is an external 2.4G wireless module interface.

The above embodiments are preferred embodiments of the magnetic track lamp control device according to the present utility model, and the scope of the present utility model is not limited to the preferred embodiments, but all equivalent changes in shape and structure according to the present utility model are within the scope of the present utility model.

Claims

1. Track lamp controlling means, its characterized in that are inhaled to magnetism: the device comprises a power supply module, a lighting module, a conversion module and a dimming module; the power module is electrically connected to the conversion module and the dimming module and is used for providing electric energy required by the device; the conversion module is electrically connected to the dimming module and is used for receiving external signals and transmitting the external signals to the dimming module; the dimming module is electrically connected to the lighting module and is used for receiving the output signal of the conversion module and controlling the lighting module to act; the lighting module is composed of a plurality of lighting devices.

2. The track lamp control device is inhaled to magnetism as defined in claim 1, wherein: the power supply module at least comprises a power supply circuit, the input end of the power supply circuit is connected with the power supply unit, and the output end of the power supply circuit is connected with the conversion module.

3. The track lamp control device is inhaled to magnetism as claimed in claim 2, wherein:

the power supply circuit comprises a common-mode inductor LF2, a rectifier bridge BD1 and a PFC circuit, wherein the input end of the common-mode inductor LF2 is connected to the output end of the power supply unit, the output end of the common-mode inductor LF2 is connected to the input end of the rectifier bridge BD1, and the output end of the rectifier bridge BD1 is connected to the input end of the PFC circuit.

4. A magnetic track light control device as claimed in claim 3, wherein:

the PFC circuit at least comprises a driving chip U1, an energy storage capacitor, a boost inductor L1 and an energy storage switch tube Q1, wherein the input end of the boost inductor L1 is connected to the 2 pin of the rectifier bridge BD1, the output end of the boost inductor L1 is connected to the MUL pin of the driving chip U1, the GND pin of the driving chip U1 is connected to the 4 pin of the rectifier bridge BD1, the DRV pin of the driving chip U1 is connected to the grid electrode of the energy storage switch tube Q1, the CS pin of the driving chip U1 is connected to the source electrode of the energy storage switch tube Q1 and grounded, the drain electrode of the energy storage switch tube Q1 is connected to the output end of the boost inductor L1, one end of the energy storage capacitor is connected to the output end of the boost inductor L1, and the other end of the energy storage capacitor is connected to the source electrode of the energy storage switch tube Q1.

5. The track lamp control device is inhaled to magnetism as defined in claim 4, wherein:

the power supply circuit is further provided with an auxiliary transformer LX1 and a quick recovery diode D5, the 1 end of the auxiliary transformer LX1 is connected to the output end of the boost inductor L1, the 2 end of the auxiliary transformer LX1 is connected to the ZCD pin of the driving chip U1, the 3 end of the auxiliary transformer LX1 is connected to the positive electrode of the quick recovery diode D5, the drain electrode of the energy storage switch tube Q1 is connected to the positive electrode of the quick recovery diode D5, one end of the energy storage capacitor is connected to the negative electrode of the quick recovery diode D5, the 4 end of the auxiliary transformer LX1 is grounded, and the 2 end and the 3 end of the auxiliary transformer LX1 are the same-name ends.

6. The track lamp control device is inhaled to magnetism as claimed in claim 2, wherein:

the power supply module further comprises a constant voltage circuit, wherein the constant voltage circuit at least comprises a constant voltage chip U2, a constant voltage tube, a driving transformer T1 and a rectifier; the input of constant voltage chip U2 is connected in the PV end and the HV end of power network, and the output of constant voltage chip U2 is connected in the input of constant voltage pipe, and the output of constant voltage pipe is connected in the input of driving transformer T1, and the HV end of power network inserts the input of constant voltage pipe, and driving transformer T1's output is connected in the input of rectifier.

7. The track lamp control device is inhaled to magnetism as defined in claim 6, wherein:

8. The track lamp control device is inhaled to magnetism as defined in claim 6, wherein:

the conversion module at least comprises a conversion circuit and a signal receiving circuit, wherein the input end of the conversion circuit is connected with the output end of the constant voltage circuit, the output end of the conversion circuit is connected with the input end of the signal receiving circuit, the output end of the signal receiving circuit is connected with the dimming module, the conversion circuit receives the voltage from the constant voltage circuit and performs voltage reduction and voltage stabilization to provide stable voltage for the signal receiving circuit, and the signal receiving circuit is used for receiving the control signal from the outside, converting the control signal and outputting the control signal to the dimming module to realize dimming control.

9. The track lamp control device is inhaled to magnetism as defined in claim 8, wherein:

the dimming module at least comprises an amplifying circuit and an output circuit, wherein the input end of the amplifying circuit is connected with the signal output end of the conversion circuit, the output end of the amplifying circuit is connected with the input end of the output circuit, and the output end of the output circuit is connected with the lighting module.

10. The track lamp control device is inhaled to magnetism as claimed in claim 9, wherein:

the output circuit at least comprises a first output chip U8, a first output pipe Q7, a second output chip U9 and a second output pipe Q10; the VCC pin of the first output chip U8 is connected to the fifth voltage end, the HIN pin of the first output chip U8 is connected to the OUTA pin of the amplifying chip U10, the HO pin of the first output chip U8 is connected to the grid electrode of the first output pipe Q7, the drain electrode of the first output pipe Q7 is connected to the voltage output end V_OUT end, and the source electrode of the first output pipe Q7 is connected to the connecting terminal CN2; the VCC pin of the second output chip U9 is connected to the sixth voltage terminal, the HIN pin of the second output chip U9 is connected to the OUTB pin of the amplifying chip U10, the LO pin of the second output chip U9 is connected to the gate of the second output pipe Q10, the drain of the second output pipe Q10 is connected to the voltage output terminal v_out terminal, and the source of the second output pipe Q10 is connected to the connection terminal CN2.