CN211352538U

CN211352538U - Miniaturized intelligent lamp

Info

Publication number: CN211352538U
Application number: CN201922022023.3U
Authority: CN
Inventors: 姚斌雄; 邓伟; 卓浩吉; 顾佳成
Original assignee: Ningbo Klite Electric Manufacture Co Ltd
Current assignee: Ningbo Klite Electric Manufacture Co Ltd
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2020-08-25
Anticipated expiration: 2029-11-20

Abstract

The utility model provides a miniaturized intelligent lamp, including the lamp cup, with lamp cup fixed connection's lamp holder and the play plain noodles that covers at the lamp cup mouth, lamp cup internal fixation has lamp plate and drive plate, the lamp plate is fixed in the lamp cup with going out the plain noodles is parallel to each other, it is lens or diffuser plate to go out the plain noodles, the drive plate passes through the wire and is connected with the lamp holder, be equipped with linear PWM dimmer circuit on the lamp plate, the drive plate is equipped with miniaturized high power factor control circuit, and miniaturized high power factor control circuit supplies power to linear PWM dimmer circuit. The utility model has the advantages of small volume, high input power factor, stable voltage and low light fluctuation.

Description

Miniaturized intelligent lamp

Technical Field

The utility model belongs to the technical field of the intelligent lamp technique and specifically relates to a miniaturized intelligent lamp is related to.

Background

Most of existing intelligent lamps simultaneously comprise a white light lamp and a color light lamp, and can perform light conversion and light adjustment according to a control circuit, and fig. 4 is a circuit structure block diagram in the prior art, wherein the control circuit comprises a mains supply input, an ACDC conversion circuit, a DCDC conversion circuit and a control module which are sequentially connected, the mains supply input and control module is connected to a switching power supply PWM dimming circuit, and the switching power supply PWM dimming circuit is connected to a CW and WW lamp bead so as to control the on and off of the CW and WW lamp beads, and the CW and WW lamp beads are white light lamps; ACDC converting circuit and control module are connected to linear PWM dimmer circuit, and linear PWM dimmer circuit is connected to RGB lamp pearl again to control the bright and bright of RGB lamp pearl and the colour change, RGB lamp pearl is the color light lamp. The control to white light lamp and color light lamp is independent, and circuit structure is complicated, and simultaneously because independent control white light lamp and color light lamp, necessary electronic component is more, and whole necessary electronic component quantity exceeds 54, consequently bears the weight of the bulky of electronic component's drive plate for the volume of lamp body is bulky, is unfavorable for the application of little appearance intelligent product.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is bulky to lead to the lamp body to be bulky because the volume of drive plate is big, is unfavorable for the problem of the application of the intelligent product of little appearance, has provided a miniaturized intelligent lamp, reduces whole necessary electronic component quantity through the control circuit who improves white light lamp and color light lamp to reduce the volume of drive plate, make the lamp body can do miniaturized design.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model provides a miniaturized intelligent lamp, includes the lamp cup, with lamp cup fixed connection's lamp holder and cover the play plain noodles at the lamp cup mouth, lamp cup internal fixation has lamp plate and drive plate, the lamp plate is fixed in the lamp cup with going out plain noodles mutual parallel, the drive plate is fixed in the lamp cup and is connected with the lamp holder through the wire with lamp plate mutually perpendicular, be equipped with linear PWM dimmer circuit on the lamp plate, the drive plate is equipped with miniaturized high power factor control circuit, and miniaturized high power factor control circuit supplies power to linear PWM dimmer circuit.

The light-emitting surface is a lens or a diffusion plate, the corresponding lens or diffusion plate is designed according to the requirement of the light-emitting angle, and the lamp panel is fixed in the lamp cup through screws 2; the effect of drive plate and lamp plate mutually perpendicular makes the lamp plate be equivalent to making somebody a mere figurehead in the lamp cup, and the rational utilization spatial position relation uses in the radiating effective cavity volume increase of lamp plate, makes things convenient for the lamp plate heat dissipation, adopts miniaturized high power factor control circuit to supply power to linear PWM dimmer circuit simultaneously, has optimized circuit structure, has reduced electronic component quantity, is favorable to the miniaturized design of drive plate, makes the utility model discloses it is small, be applied to little appearance intelligent product.

Preferably, the drive plate is further provided with a control module, the drive plate is connected with the control module through a wire in a power supply mode, the control module is provided with a module control circuit and a receiving and transmitting antenna, an antenna hole is formed in the lamp panel, and the receiving and transmitting antenna penetrates out of the antenna hole. The control module group can be 2.4G remote control, BLE, WIFI and ZIGBEE, and the antenna can pass the lamp plate, stretches to going out below the plain noodles, is favorable to avoiding the sensitivity that metal shielding improved the antenna.

Preferably, the miniaturized high power factor control circuit comprises a power factor control circuit, a FLYBACK circuit and a power factor control circuit, and the control circuit inputs power factors; and the FLYBACK circuit is connected with the output end of the power factor control circuit and supplies power to the linear PWM dimming circuit, and the output end of the FLYBACK circuit is connected with the control end of the module control circuit.

Preferably, the power factor control circuit comprises a linear constant current chip US21, a capacitor CD21, a diode DS21, a diode DS22, a resistor RS21A, a resistor RS21B and a resistor RS22, wherein the linear constant current chip US21 is of the type PM2015B,

the utility model discloses a fuse F11 is connected to the live wire of commercial power, and then is connected with one end of electric capacity CD21 through rectifier bridge DS11, and the other end of electric capacity CD21, the negative pole of diode DS21 and the positive pole of diode DS22 are parallelly connected, and the negative pole of diode DS22, one end of resistance RS21A and one end of resistance RS21B are parallelly connected, and the other end of resistance RS21A is connected with the HSD foot of linear constant current chip US21, and the other end of resistance RS21B, the positive pole of diode DS21 and the GND foot of linear constant current chip US21 are ground, and the CS foot of linear constant current chip US21 is connected with ground through resistance RS 22.

The charging and discharging amplitude of the voltage on the capacitor CD21 is controlled by controlling the discharging current of the capacitor CD21, and the input current conduction angle of the rectifier bridge DS11 is controlled, so that the input power factor PF is controlled to be greater than 0.7, and the input power factor is controlled to reach the standard requirement. A circuit formed by a diode DS22, a resistor RS21A, a resistor RS21B, a linear constant current chip US21 and a resistor RS22 provides a charging loop of a capacitor CD21, wherein the resistor RS21A and the resistor RS21B are current-limiting resistors, the linear constant current chip US21 is prevented from being damaged by impact of a large circuit, and the charging current of the linear constant current chip US21 is determined by the resistor RS 22.

Preferably, one end of the capacitor CD21 is connected to the FLYBACK circuit as the output end of the power factor control circuit, the FLYBACK circuit includes a switching power supply control chip US31 and a FLYBACK inductor TR11, the switching power supply control chip US31 is PM3303US31, the FLYBACK inductor TR11 is formed by winding N1, N2, N3, N4 on the same frame and installing a magnetic core, the N1 winding is a main winding, one end of which is connected to one end of the capacitor CD21, the other end of the N1 winding is connected to the DRN pin of the switching power supply control chip US31, the FB pin of the switching power supply control chip US31 is grounded, the FB pin of the switching power supply control chip US31 is connected to one end of the N2 winding, the other end of the N2 winding, one end of the N3 winding and one end of the N4 winding are connected to ground, the other end of the N3 winding and the other end of the N4 winding are led out as the output end of the linear PWM control circuit, the RS31 of the switching power supply control chip US 61 is, the HV pin of the switching power supply control chip US31 is connected to one end of a resistor RS51, the other end of the resistor RS51 is connected to one end of a capacitor CD21, the CS pin of the switching power supply control chip US31 is connected to one end of a resistor RS31, and the other end of the resistor RS31 is grounded.

The circuit formed by the N1 winding of the FLYBACK inductor TR11, the switch power supply control chip US31, the resistor RS31 and the diode DS21 is a discharge circuit of a capacitor CD21, and the line voltage can be controlled to obtain stable and small-fluctuation voltage due to the fact that the charge-discharge depth of the CD21 is controlled, so that the output current ripple is less than 10%, the output light fluctuation is less than 30%, and the standard requirement is met.

Preferably, the linear PWM dimming circuit comprises two paths of white light bulbs connected in parallel, three paths of color bulbs connected in parallel and a constant current PWM control chip US41,

the two parallelly connected white light lamp beads comprise: a diode CW1, a diode CW2, a diode CW3 and a diode CW4 are connected in series to form a CW white light circuit, a diode WW1, a diode WW2, a diode WW3 and a diode WW4 are connected in series to form a WW white light circuit, the CW white light circuit and the anode of the WW white light circuit are connected in parallel with the cathode of a diode DS43, the anode of a diode DS43 is connected to a VIN pin of a constant current PWM control chip US41, the cathode of the CW white light circuit is connected to an OUT5 pin of the constant current PWM control chip US41, and the cathode of the WW white light circuit is connected to an OUT4 pin of the constant current PWM control chip US 41;

the parallelly connected three routes colored lamp pearl includes: the diode RGB1A and the diode RGB2A are connected in series to form an RGBA lamp circuit, the diode RGB1B and the diode RGB2B are connected in series to form an RGBA lamp circuit, the diode RGB1C and the diode RGB2C are connected in series to form an RGBC lamp circuit, the other ends of the diode RGB1, the diode RGBA, the diode RGBC, the RGBC lamp circuit and the resistor RS61 are connected in parallel to the other end of the N4 winding, the negative electrode of the RGBA lamp circuit is connected to the OUT1 pin of the constant current PWM control chip US41, the negative electrode of the RGBA lamp circuit is connected to the OUT3 pin of the constant current PWM control chip US41, the negative electrode of the RGBC lamp circuit is connected to the OUT2 pin of the constant current PWM control chip US41, and the pin of the constant current PWM control chip US 41.

Linear PWM dimmer circuit direct control white light lamp and color lamp have reduced the switching power supply PWM dimmer circuit among the prior art, have optimized circuit structure, have reduced electronic component's use, are favorable to the miniaturized design of drive plate to reduce the volume of lamp body, made the lamp body can be applied to little appearance intelligent product.

Preferably, the module control circuit comprises a WIFI control module US51 and a control switch QS41, the FLYBACK inductor TR11 is connected with a rectifier filter circuit, the rectifier filter circuit comprises a diode DS61, a capacitor CD61, a diode DS41, a capacitor CD41, a diode DS42 and a capacitor CD42, one end of a winding of the N2 is connected to an anode of the diode DS2, a cathode of the diode DS2 and one end of the capacitor CD2 are connected in parallel with an FB pin of the switching power supply control chip US2, one end of the capacitor CD2 is connected to a voltage output end of the WIFI control module US2, the WIFI control module US2 provides 3.3V voltage for the capacitor CD2, the other end of the capacitor CD2 is grounded, one end of the diode DS2 is connected to the other end of the winding of the N2, the other end of the diode DS2 is connected to one end of the capacitor CD2, one end of the control switch DS2 and the other end of the capacitor CD2 are connected in parallel with the other end of the capacitor CD2, the third end of the control switch QS41 is connected with a signal ground, the first end of the control switch QS41 is connected with the IO13 pin of the WIFI control module US51 in advance, the CLK pin of the WIFI control module US51 is connected with the CLK pin of the constant-current PWM control chip US41, the DATA pin of the WIFI control module US51 is connected with the DATA pin of the constant-current PWM control chip US41, and the GND pin of the WIFI control module US51 is grounded. During standby, an IO13 foot of the WIFI control module US51 controls the control switch QS41 to switch off the lamp panel output, so that power consumption is reduced, and standby power consumption is smaller than 0.2W.

Preferably, an EMC filter circuit is connected between the capacitor CD21 and the rectifier bridge DS11, the EMC filter circuit includes a capacitor C21, an inductor L21 and a capacitor CS22, an output terminal of the rectifier bridge DS11, one end of the inductor L21 and one end of the capacitor CS21 are connected in parallel, one end of the capacitor CD21, the other end of the inductor L21 and one end of the capacitor CS22 are connected in parallel, the other end of the capacitor C21 is grounded, and the other end of the capacitor CS22 is grounded; EMC filter circuit for preventing EMC interference generated by the circuit from returning to the power grid

An RCD absorption circuit is connected between the switching power supply control chip US31 and the FLYBACK inductor TR11, the RCD absorption circuit comprises a capacitor CS51, a resistor RS52 and a diode DS51, one end of the capacitor CS51 and one end of the resistor RS52 are connected in parallel to one end of an N1 winding of the FLYBACK inductor TR11, the other end of the capacitor CS51 and the other end of the resistor RS52 are connected in parallel to a negative electrode of a diode DS51, and an anode of the diode DS51 is connected with the other end of the N1 winding. And the RCD absorption circuit eliminates the oscillation voltage and prevents the DRN pin of the switching power supply control chip US31 from being broken down.

Preferably, the switching power supply control chip US31 is connected with an adjusting circuit, the adjusting circuit comprises a resistor RS32, a capacitor CS31B and a capacitor CS31A, one end of the resistor RS32 and one end of the capacitor CS31A are connected in parallel to a COMP pin of the switching power supply control chip US31, the other end of the resistor RS32 is connected with one end of the capacitor CS31B, and the other end of the capacitor CS31B and the other end of the capacitor CS31A are connected in parallel to the ground; the regulating circuit regulates the control performance of the switching power supply control chip US31, and the stability of the output voltage is ensured.

The switching power supply control chip US31 is connected with a voltage division circuit, the voltage division circuit comprises a resistor RS32A, a resistor RS32B and a capacitor CS32, one end of the resistor RS32A and one end of the resistor RS32B are connected to an FB pin of the switching power supply control chip US31 in parallel, the other end of the resistor RS32A is connected with the negative electrode of a diode DS61, the other end of the resistor RS32B is grounded, and the FB pin of the switching power supply control chip US31 is grounded through the capacitor CS 32. The feedback voltage of the voltage division circuit is sent back to the FB pin of the switching power supply control chip US31 to control the shift of the output voltage.

Preferably, the lamp panel is a heat dissipation substrate, and the lamp bead of the linear PWM dimming circuit and the constant current PWM control chip US41 are attached to the heat dissipation substrate; the heat dissipation substrate is provided with a female end, the constant current PWM control chip US41 is in signal connection with the miniaturized high power factor control circuit through the female end, the drive board is provided with a male end, and the miniaturized high power factor control circuit of the drive board is in power supply connection with the linear PWM dimming circuit of the lamp panel through the male end. The constant current PWM control chip US41 can emit heat during working, the constant current PWM control chip US41 is arranged on the heat dissipation substrate, heat dissipation of the constant current PWM control chip US41 is facilitated, and faults of the constant current PWM control chip US41 due to overhigh temperature are avoided.

The utility model discloses there is following beneficial effect: the white light lamp and the lighting lamp are simultaneously controlled by adopting the miniaturized high-power-factor control circuit and the linear PWM dimming circuit, the circuit structure is optimized, the use of electronic elements is reduced, the driving board can be subjected to miniaturized design, the lamp body is further subjected to miniaturized design, and the application of the lamp body in a small intelligent product is facilitated; the mode that the driving board and the lamp panel are vertically arranged is adopted, so that the heat dissipation of the lamp panel is facilitated; the charging and discharging amplitude of the voltage on the capacitor CD21 is controlled by controlling the discharging current of the capacitor CD21, and the input current conduction angle of the rectifier bridge DS11 is controlled, so that the input power factor PF is controlled to be greater than 0.7, and the input power factor is controlled to meet the standard requirement; the charge-discharge depth of the capacitor CD21 is controlled, the line voltage can be controlled, the stable and small fluctuation voltage can be obtained, the output current ripple is less than 10%, and the output light fluctuation is less than 30%, so that the standard requirement is met.

Drawings

FIG. 1 is a three-dimensional exploded view of the present invention;

FIG. 2 is a circuit diagram of the miniaturized high power factor control circuit of the present invention;

fig. 3 is a circuit diagram of the linear PWM dimming circuit of the present invention;

FIG. 4 is a block diagram of a prior art circuit configuration;

fig. 5 is a block diagram of the circuit structure of the present invention;

wherein: 1. The LED lamp comprises a light emitting surface 2, a screw 3, a lamp panel 4, an antenna hole 5, a female end 6, a male end 7, a control module 8, a driving plate 9, a lamp cup 10 and a lamp holder.

Detailed Description

Example (b):

this embodiment provides a miniaturized intelligent lamp, refer to fig. 1 the utility model discloses a three-dimensional decomposition structure chart, including lamp cup 9, with lamp cup 9 fixed connection's lamp holder 10 with cover the play plain noodles 1 at the lamp rim of a cup, lamp cup 9 internal fixation has lamp plate 3 and drive plate 8, lamp plate 3 is fixed in lamp cup 9 with going out plain noodles 1 mutual parallel, drive plate 8 is fixed in lamp cup 9 and is connected with lamp holder 10 through the wire with lamp plate 3 mutually perpendicular, be equipped with linear PWM dimmer circuit on the lamp plate 3, drive plate 8 is equipped with miniaturized high power factor control circuit, miniaturized high power factor control circuit supplies power to linear PWM dimmer circuit.

The light-emitting surface is a lens or a diffusion plate, the corresponding lens or diffusion plate is designed according to the requirement of the light-emitting angle, and the lamp panel is fixed in the lamp cup through a screw 2; the effect of drive plate 8 and 3 mutually perpendicular of lamp plate makes the lamp plate be equivalent to built on stilts in the lamp cup, and the rational utilization spatial position relation uses in the radiating effective cavity volume increase of lamp plate, makes things convenient for the lamp plate heat dissipation, adopts miniaturized high power factor control circuit to supply power to linear PWM dimmer circuit simultaneously, has optimized circuit structure, has reduced electronic component quantity, is favorable to the miniaturized design of drive plate, makes the utility model discloses it is small, be applied to little appearance intelligent product.

Drive plate 8 still is equipped with control module group 7, and drive plate 8 passes through the wire to be connected with 7 power supplies of control module group, and control module group 7 is equipped with module control circuit and receiving and dispatching antenna, is equipped with antenna hole 4 on the lamp plate 3, and the receiving and dispatching antenna is worn out from antenna hole 4. The control module group can be 2.4G remote control, BLE, WIFI and ZIGBEE, and the antenna can pass the lamp plate, stretches to going out below the plain noodles, is favorable to avoiding the sensitivity that metal shielding improved the antenna.

Referring to fig. 2, the miniaturized high power factor control circuit of the present invention includes a power factor control circuit, a FLYBACK circuit, and a power factor control circuit, wherein the power factor control circuit inputs power factors; and the FLYBACK circuit is connected with the output end of the power factor control circuit and supplies power to the linear PWM dimming circuit, and the output end of the FLYBACK circuit is connected with the control end of the module control circuit.

The power factor control circuit comprises a linear constant current chip US21, a capacitor CD21, a diode DS21, a diode DS22, a resistor RS21A, a resistor RS21B and a resistor RS22, wherein the model number of the linear constant current chip US21 is PM2015B,

One end of a capacitor CD21 is used as an output end of a power factor control circuit and connected with a FLYBACK circuit, the FLYBACK circuit comprises a switch power supply control chip US31 and a FLYBACK inductor TR11, the model of the switch power supply control chip US31 is PM3303US31, the FLYBACK inductor TR11 is formed by winding four windings of N1, N2, N3 and N4 on the same framework and installing a magnetic core, the winding of N1 is a main winding, one end of the winding of the N1 is connected with one end of the capacitor CD21, the other end of the winding of N1 is connected with a DRN pin of a switch power supply control chip US31, a GND pin of the switch power supply control chip US31 is grounded, a FB pin of the switch power supply control chip US31 is connected with one end of a winding of N2, the other end of the winding of the N2, one end of the winding of the N3 is connected with one end of a winding of N4 in parallel, the other end of the winding of the N3 and the other end of the N4 are led out to be used as an output end of a linear PWM dimming, the other end of the resistor RS51 is connected with one end of the capacitor CD21, the CS pin of the switch power supply control chip US31 is connected with one end of the resistor RS31, and the other end of the resistor RS31 is grounded.

Reference figure 3 is the utility model discloses a linear PWM dimming circuit diagram, linear PWM dimming circuit include two parallelly connected way white light lamp pearls, parallelly connected three routes colored lamp pearl and constant current PWM control chip US41, and two parallelly connected way white light lamp pearls include: a diode CW1, a diode CW2, a diode CW3 and a diode CW4 are connected in series to form a CW white light circuit, a diode WW1, a diode WW2, a diode WW3 and a diode WW4 are connected in series to form a WW white light circuit, the CW white light circuit and the anode of the WW white light circuit are connected in parallel with the cathode of a diode DS43, the anode of a diode DS43 is connected to a VIN pin of a constant current PWM control chip US41, the cathode of the CW white light circuit is connected to an OUT5 pin of the constant current PWM control chip US41, and the cathode of the WW white light circuit is connected to an OUT4 pin of the constant current PWM control chip US 41;

parallelly connected three routes colored lamp pearl includes: the diode RGB1A and the diode RGB2A are connected in series to form an RGBA lamp circuit, the diode RGB1B and the diode RGB2B are connected in series to form an RGBA lamp circuit, the diode RGB1C and the diode RGB2C are connected in series to form an RGBC lamp circuit, the other ends of the diode RGB1, the diode RGBA, the diode RGBC, the RGBC lamp circuit and the resistor RS61 are connected in parallel to the other end of the N4 winding, the negative electrode of the RGBA lamp circuit is connected to the OUT1 pin of the constant current PWM control chip US41, the negative electrode of the RGBA lamp circuit is connected to the OUT3 pin of the constant current PWM control chip US41, the negative electrode of the RGBC lamp circuit is connected to the OUT2 pin of the constant current PWM control chip US41, and the VIN pin of the constant current PWM control chip.

Referring to fig. 4 and 5, fig. 4 is a circuit block diagram of the prior art, and fig. 5 is a circuit block diagram of the present invention; linear PWM dimmer circuit direct control white light lamp and color lamp have reduced the switching power supply PWM dimmer circuit among the prior art, have optimized circuit structure, have reduced electronic component's use, are favorable to the miniaturized design of drive plate to reduce the volume of lamp body, made the lamp body can be applied to little appearance intelligent product.

The module control circuit comprises a WIFI control module US51 and a control switch QS41, a FLYBACK inductor TR11 is connected with a rectifying and filtering circuit, the rectifying and filtering circuit comprises a diode DS61, a capacitor CD61, a diode DS41, a capacitor CD41, a diode DS42 and a capacitor CD42, one end of a winding of the N2 is connected with the anode of the diode DS2, the cathode of the diode DS2 and one end of the capacitor CD2 are connected in parallel with an FB pin of a switching power supply control chip US2, one end of the capacitor CD2 is connected with a voltage output end of the WIFI control module US2, the WIFI control module US2 provides 3.3V voltage for the capacitor CD2, the other end of the capacitor CD2 is grounded, one end of the diode DS2 is connected with the other end of the winding of the N2, the other end of the diode DS2 is connected with one end of the capacitor CD2, the other end of the control switch QS, the other end of the capacitor DS2 and the other, the third end of the control switch QS41 is connected with a signal ground, the first end of the control switch QS41 is connected with the IO13 pin of the WIFI control module US51 in advance, the CLK pin of the WIFI control module US51 is connected with the CLK pin of the constant-current PWM control chip US41, the DATA pin of the WIFI control module US51 is connected with the DATA pin of the constant-current PWM control chip US41, and the GND pin of the WIFI control module US51 is grounded. During standby, an IO13 foot of the WIFI control module US51 controls the control switch QS41 to switch off the lamp panel output, so that power consumption is reduced, and standby power consumption is smaller than 0.2W.

An EMC filter circuit is connected between the capacitor CD21 and the rectifier bridge DS11, the EMC filter circuit comprises a capacitor C21, an inductor L21 and a capacitor CS22, the output end of the rectifier bridge DS11, one end of the inductor L21 and one end of the capacitor CS21 are connected in parallel, one end of the capacitor CD21, the other end of the inductor L21 and one end of the capacitor CS22 are connected in parallel, the other end of the capacitor C21 is grounded, and the other end of the capacitor CS22 is grounded; EMC filter circuit for preventing EMC interference generated by the circuit from returning to the power grid

An RCD absorption circuit is connected between the switching power supply control chip US31 and the FLYBACK inductor TR11, the RCD absorption circuit comprises a capacitor CS51, a resistor RS52 and a diode DS51, one end of the capacitor CS51 and one end of the resistor RS52 are connected in parallel to one end of an N1 winding of the FLYBACK inductor TR11, the other end of the capacitor CS51 and the other end of the resistor RS52 are connected in parallel to the negative electrode of the diode DS51, and the positive electrode of the diode DS51 is connected with the other end of the N1 winding. And the RCD absorption circuit eliminates the oscillation voltage and prevents the DRN pin of the switching power supply control chip US31 from being broken down.

The switching power supply control chip US31 is connected with an adjusting circuit, the adjusting circuit comprises a resistor RS32, a capacitor CS31B and a capacitor CS31A, one end of the resistor RS32 and one end of the capacitor CS31A are connected in parallel with a COMP pin of the switching power supply control chip US31, the other end of the resistor RS32 is connected with one end of the capacitor CS31B, and the other end of the capacitor CS31B and the other end of the capacitor CS31A are connected in parallel with the ground; the regulating circuit regulates the control performance of the switching power supply control chip US31, and the stability of the output voltage is ensured.

The switching power supply control chip US31 is connected with a voltage division circuit, the voltage division circuit comprises a resistor RS32A, a resistor RS32B and a capacitor CS32, one end of the resistor RS32A and one end of the resistor RS32B are connected to an FB pin of the switching power supply control chip US31 in parallel, the other end of the resistor RS32A is connected with a negative electrode of a diode DS61, the other end of the resistor RS32B is grounded, and the FB pin of the switching power supply control chip US31 is grounded through a capacitor CS 32. The feedback voltage of the voltage division circuit is sent back to the FB pin of the switching power supply control chip US31 to control the shift of the output voltage.

The lamp panel 3 is a heat dissipation substrate, and a lamp bead of the linear PWM dimming circuit and the constant current PWM control chip US41 are attached to the heat dissipation substrate; the heat dissipation base plate is equipped with female end 5, and constant current PWM control chip US41 passes through female end and miniaturized high power factor control circuit signal connection, and the drive plate is equipped with public end 6, and the miniaturized high power factor control circuit of drive plate passes through the linear PWM dimmer circuit power supply connection of public end and lamp plate. The constant current PWM control chip US41 can emit heat during working, the constant current PWM control chip US41 is arranged on the heat dissipation substrate, heat dissipation of the constant current PWM control chip US41 is facilitated, and faults of the constant current PWM control chip US41 due to overhigh temperature are avoided.

The utility model discloses there is following advantage: the white light lamp and the lighting lamp are simultaneously controlled by adopting the miniaturized high-power-factor control circuit and the linear PWM dimming circuit, the circuit structure is optimized, the use of electronic elements is reduced, the driving board can be subjected to miniaturized design, the lamp body is further subjected to miniaturized design, and the application of the lamp body in a small intelligent product is facilitated; the mode that the driving board and the lamp panel are vertically arranged is adopted, so that the heat dissipation of the lamp panel is facilitated; the charging and discharging amplitude of the voltage on the capacitor CD21 is controlled by controlling the discharging current of the capacitor CD21, and the input current conduction angle of the rectifier bridge DS11 is controlled, so that the input power factor PF is controlled to be greater than 0.7, and the input power factor is controlled to meet the standard requirement; the charging and discharging depth of the capacitor CD21 is controlled, the line voltage can be controlled, the stable and small-fluctuation voltage is obtained, the output current ripple is less than 10%, the output light fluctuation is less than 30%, the standard requirement is met, the IO13 foot of the WIFI control module US51 controls the control switch QS41 to switch off the lamp panel output, the standby power consumption is reduced, and the standby power consumption is less than 0.2W; therefore, the utility model has the advantages of small, the input power factor is high, voltage is steady, the light fluctuation is low.

Claims

1. The utility model provides a miniaturized intelligent lamp, includes lamp cup (9), lamp holder (10) and the cover of lamp cup (9) fixed connection go out plain noodles (1) at the lamp rim of a cup, characterized by, lamp cup (9) internal fixation has lamp plate (3) and drive plate (8), lamp plate (3) and play plain noodles (1) are parallel to each other to be fixed in lamp cup (9), it is lens or diffuser plate to go out the plain noodles, drive plate (8) are connected with lamp holder (10) through the wire, be equipped with linear PWM dimmer circuit on lamp plate (3), drive plate (8) are equipped with miniaturized high power factor control circuit, and miniaturized high power factor control circuit and linear PWM dimmer circuit signal are connected.

2. The small-sized intelligent lamp according to claim 1, wherein the driving board (8) is further provided with a control module (7), the driving board (8) is in power supply connection with the control module (7) through a wire, the control module (7) is provided with a module control circuit and a receiving and transmitting antenna, an antenna hole (4) is formed in the lamp panel (3), and the receiving and transmitting antenna penetrates out of the antenna hole (4).

3. A miniature intelligent lamp as set forth in claim 2, wherein said miniature high power factor control circuit comprises a power factor control circuit and a FLYBACK circuit, the power factor control circuit inputting a power factor; and the FLYBACK circuit is connected with the output end of the power factor control circuit and supplies power to the linear PWM dimming circuit, and the output end of the FLYBACK circuit is connected with the control end of the module control circuit.

4. A miniaturized intelligent lamp as claimed in claim 3, wherein said power factor control circuit comprises a linear constant current chip US21, a capacitor CD21, a diode DS21, a diode DS22, a resistor RS21A, a resistor RS21B and a resistor RS22, said linear constant current chip US21 is of type PM2015B,

5. A small intelligent lamp as claimed in claim 4, wherein one end of said capacitor CD21 is connected to FLYBACK circuit as output end of power factor control circuit, said FLYBACK circuit includes a switch power control chip US31 and FLYBACK inductor TR11, said switch power control chip US31 is PM3303US31, said FLYBACK inductor TR11 is composed of N1, N2, N3, N4 four windings wound on the same frame and mounted with magnetic core, N1 winding is main winding, one end of which is connected to one end of capacitor CD21, the other end of N1 winding is connected to DRN pin of switch power control chip US31, GND pin of switch power control chip US31 is grounded, FB pin of switch power control chip US31 is connected to one end of N2 winding, the other end of N2 winding, one end of N3 winding is connected to ground, the other end of N3 winding and the other end of N4 winding are led out as output end of linear PWM circuit, the VDD pin of the switching power supply control chip US31 is connected to one end of a resistor RS61, the HV pin of the switching power supply control chip US31 is connected to one end of a resistor RS51, the other end of the resistor RS51 is connected to one end of a capacitor CD21, the CS pin of the switching power supply control chip US31 is connected to one end of a resistor RS31, and the other end of the resistor RS31 is grounded.

6. The miniaturized intelligent lamp of claim 5, wherein the linear PWM dimming circuit comprises two white light bulbs connected in parallel, three color bulbs connected in parallel and a constant current PWM control chip US41,

the parallelly connected three routes colored lamp pearl includes: the diode RGB1A and the diode RGB2A are connected in series to form an RGBA lamp circuit, the diode RGB1B and the diode RGB2B are connected in series to form an RGBA lamp circuit, the diode RGB1C and the diode RGB2C are connected in series to form an RGBC lamp circuit, the other ends of the RGBA lamp circuit, the RGBC lamp circuit and the RGBC lamp circuit are connected in parallel with the other end of the N4 winding, the negative pole of the RGBA lamp circuit is connected with the OUT1 pin of the constant current PWM control chip US41, the negative pole of the RGBA lamp circuit is connected with the OUT3 pin of the constant current PWM control chip US41, and the negative pole of the RGBC lamp circuit is connected;

and the VIN pin of the constant-current PWM control chip US41 is connected with the other end of the N3 winding.

7. The miniaturized intelligent lamp as claimed in claim 6, wherein the module control circuit comprises a WIFI control module US51 and a control switch QS41, the FLYBACK inductor TR11 is connected with a rectifying and filtering circuit, the rectifying and filtering circuit comprises a diode DS61, a capacitor CD61, a diode DS41, a capacitor CD41, a diode DS42 and a capacitor CD42, one end of a winding of N2 is connected with an anode of a diode DS61, a cathode of a diode DS61 and one end of a capacitor CD61 are connected in parallel with an FB pin of a switching power control chip US31, one end of a capacitor CD61 is connected with a voltage output end of the WIFI control module US51, the WIFI control module US51 provides 3.3V voltage for the capacitor CD61, the other end of the capacitor CD61 is grounded, one end of the diode DS61 is connected with the other end of the winding of the N61, the other end of the diode DS61 is connected with one end of the capacitor DS61, the second end of the control switch QS41 and the other end of the capacitor CD41 are connected with the other end of the capacitor CD42 in parallel to the ground, the third end of the control switch QS41 is connected with the signal ground, the first end of the control switch QS41 is connected with the IO13 pin of the WIFI control module US51 in advance, the CLK pin of the WIFI control module US51 is connected with the CLK pin of the constant-current PWM control chip US41, the DATA pin of the WIFI control module US51 is connected with the DATA pin of the constant-current PWM control chip US41, and the GND pin of the WIFI control module US51 is connected with the ground.

8. A miniaturized intelligent lamp as claimed in claim 5, 6 or 7, wherein an EMC filter circuit is connected between the capacitor CD21 and the rectifier bridge DS11, the EMC filter circuit comprises a capacitor C21, an inductor L21 and a capacitor CS22, the output end of the rectifier bridge DS11, one end of an inductor L21 and one end of a capacitor CS21 are connected in parallel, one end of the capacitor CD21, the other end of the inductor L21 and one end of the capacitor CS22 are connected in parallel, the other end of the capacitor C21 is connected to ground, and the other end of the capacitor CS22 is connected to ground;

an RCD absorption circuit is connected between the switching power supply control chip US31 and the FLYBACK inductor TR11, the RCD absorption circuit comprises a capacitor CS51, a resistor RS52 and a diode DS51, one end of the capacitor CS51 and one end of the resistor RS52 are connected in parallel to one end of an N1 winding of the FLYBACK inductor TR11, the other end of the capacitor CS51 and the other end of the resistor RS52 are connected in parallel to a negative electrode of a diode DS51, and an anode of the diode DS51 is connected with the other end of the N1 winding.

9. The miniaturized intelligent lamp as claimed in claim 8, wherein the switching power supply control chip US31 is connected with an adjusting circuit, the adjusting circuit comprises a resistor RS32, a capacitor CS31B and a capacitor CS31A, one end of the resistor RS32 and one end of the capacitor CS31A are connected in parallel with a COMP pin of the switching power supply control chip US31, the other end of the resistor RS32 is connected with one end of the capacitor CS31B, and the other end of the capacitor CS31B is connected in parallel with the other end of the capacitor CS31A to the ground;

the switching power supply control chip US31 is connected with a voltage division circuit, the voltage division circuit comprises a resistor RS32A, a resistor RS32B and a capacitor CS32, one end of the resistor RS32A and one end of the resistor RS32B are connected to an FB pin of the switching power supply control chip US31 in parallel, the other end of the resistor RS32A is connected with the negative electrode of a diode DS61, the other end of the resistor RS32B is grounded, and the FB pin of the switching power supply control chip US31 is grounded through the capacitor CS 32.

10. The miniaturized intelligent lamp of claim 9, wherein the lamp panel (3) is a heat dissipation substrate, and the lamp bead of the linear PWM dimming circuit and the constant current PWM control chip US41 are attached to the heat dissipation substrate; the heat dissipation substrate is provided with a female end (5), the constant current PWM control chip US41 is in signal connection with the miniaturized high power factor control circuit through the female end, the drive board is provided with a male end (6), and the miniaturized high power factor control circuit of the drive board is in power supply connection with the linear PWM dimming circuit of the lamp panel through the male end.