CN111385937B - Miniaturized intelligent lamp - Google Patents

Miniaturized intelligent lamp Download PDF

Info

Publication number
CN111385937B
CN111385937B CN201911142742.7A CN201911142742A CN111385937B CN 111385937 B CN111385937 B CN 111385937B CN 201911142742 A CN201911142742 A CN 201911142742A CN 111385937 B CN111385937 B CN 111385937B
Authority
CN
China
Prior art keywords
circuit
diode
capacitor
lamp
resistor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201911142742.7A
Other languages
Chinese (zh)
Other versions
CN111385937A (en
Inventor
姚斌雄
邓伟
卓浩吉
顾佳成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Klite Electric Manufacture Co Ltd
Original Assignee
Ningbo Klite Electric Manufacture Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ningbo Klite Electric Manufacture Co Ltd filed Critical Ningbo Klite Electric Manufacture Co Ltd
Priority to CN201911142742.7A priority Critical patent/CN111385937B/en
Publication of CN111385937A publication Critical patent/CN111385937A/en
Application granted granted Critical
Publication of CN111385937B publication Critical patent/CN111385937B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B35/00—Electric light sources using a combination of different types of light generation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Abstract

The invention provides a miniaturized intelligent lamp which comprises a lamp cup, a lamp holder fixedly connected with the lamp cup and a light emitting surface covering a lamp cup opening, wherein a lamp panel and a driving board are fixed in the lamp cup, the lamp panel and the light emitting surface are fixed in the lamp cup in parallel, the driving board and the lamp panel are vertically fixed in the lamp cup and are connected with the lamp holder through a wire, a linear PWM dimming circuit is arranged on the lamp panel, a miniaturized high power factor control circuit is arranged on the driving board, and the miniaturized high power factor control circuit supplies power to the linear PWM dimming circuit. The invention has the advantages of small volume, high input power factor, stable voltage and low light fluctuation.

Description

Miniaturized intelligent lamp
Technical Field
The invention relates to the technical field of intelligent lamps, in particular to a miniaturized intelligent lamp.
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.
Disclosure of Invention
The invention provides a miniaturized intelligent lamp, aiming at solving the problems that the lamp body is large in size due to the large size of a driving plate and is not beneficial to the application of small-outline intelligent products.
In order to achieve the above purpose, 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 driving board and the lamp panel are mutually perpendicular to each other, so that the lamp panel is equivalently erected in the lamp cup, the space position relation is reasonably utilized, the effective cavity volume for the lamp panel to dissipate heat is increased, the lamp panel is convenient to dissipate heat, meanwhile, a miniaturized high-power-factor control circuit is adopted to supply power to the linear PWM dimming circuit, the circuit structure is optimized, the number of electronic elements is reduced, the miniaturized design of the driving board is facilitated, the circuit structure is small, and the circuit structure is applied to small-appearance intelligent products.
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 connected to VDD, 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 positive electrodes of the CW white light circuit and the WW white light circuit are connected in parallel with the negative electrode of a diode DS43, the positive electrode of a diode DS43 is connected with a VIN pin of a constant current PWM control chip US41, the negative electrode of the CW white light circuit is connected with an OUT5 pin of the constant current PWM control chip US41, and the negative electrode of the WW white light circuit is connected with 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 anode of the RGBA lamp circuit, the RGBC lamp circuit and the resistor RS61 are connected in parallel to the other end of the N4 winding, the cathode of the RGBA lamp circuit is connected to the OUT1 pin of the constant current PWM control chip US41, the cathode of the RGBA lamp circuit is connected to the OUT3 pin of the constant current PWM control chip US41, the cathode 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 US41 is connected with the other end of the N3 winding.
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 invention has the following beneficial effects: 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 perspective 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 a 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 configuration 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):
the embodiment provides a miniaturized intelligent lamp, and reference figure 1 is a three-dimensional decomposition structure diagram of the invention, and the miniaturized intelligent lamp comprises a lamp cup 9, a lamp holder 10 fixedly connected with the lamp cup 9 and a light-emitting surface 1 covering the mouth of the lamp cup, a lamp panel 3 and a driver board 8 are fixed in the lamp cup 9, the lamp panel 3 and the light-emitting surface 1 are mutually parallel and fixed in the lamp cup 9, the driver board 8 and the lamp panel 3 are mutually vertically fixed in the lamp cup 9 and connected with the lamp holder 10 through a wire, a linear PWM dimming circuit is arranged on the lamp panel 3, the driver board 8 is provided with a miniaturized high power factor control circuit, and the miniaturized high power factor control circuit supplies power to the linear PWM dimming 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 driving board 8 and the lamp panel 3 are perpendicular to each other, so that the lamp panel is equivalently built on the air in the lamp cup, the space position relationship is reasonably utilized, the volume of an effective cavity for radiating the lamp panel is increased, the lamp panel is convenient to radiate, meanwhile, a miniaturized high-power-factor control circuit is adopted to supply power to the linear PWM dimming circuit, the circuit structure is optimized, the number of electronic elements is reduced, the miniaturized design of the driving board is facilitated, the size is small, and the LED lamp is applied to small-appearance intelligent products.
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 comprises a power factor control circuit and a FLYBACK circuit, the power factor control circuit, the control circuit inputs 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.
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,
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.
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 circuit, a pin 4 of a switch power supply control chip, the switch power supply control chip 4, the switch power supply control chip VDD pin 4 is connected with one end of a RS 4 and a RS 4 of a resistor RS 4, 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.
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.
Referring to fig. 3, the linear PWM dimming circuit of the present invention includes two parallel white light bulbs, three parallel color bulbs and a constant current PWM control chip US41, where the two parallel white light bulbs 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 positive electrodes of the CW white light circuit and the WW white light circuit are connected in parallel with the negative electrode of a diode DS43, the positive electrode of a diode DS43 is connected with a VIN pin of a constant current PWM control chip US41, the negative electrode of the CW white light circuit is connected with an OUT5 pin of the constant current PWM control chip US41, and the negative electrode of the WW white light circuit is connected with 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 anode of the RGBA lamp circuit, the anode of the RGBC lamp circuit and the resistor RS61 are connected in parallel to the other end of the N4 winding, the cathode of the RGBA lamp circuit is connected to the OUT1 pin of the constant current PWM control chip US41, the cathode of the RGBC lamp circuit is connected to the OUT3 pin of the constant current PWM control chip US41, the cathode 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 US41 is connected to the other end of the N3 winding.
Referring to fig. 4 and 5, fig. 4 is a block diagram of a circuit configuration of the prior art, and fig. 5 is a block diagram of a circuit configuration 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 end of the capacitor CD2 are connected in parallel with the ground, 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 invention has the following advantages: 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 invention has the advantages of small volume, high input power factor, stable voltage and low light fluctuation.

Claims (9)

1. The small intelligent lamp comprises a lamp cup (9), a lamp holder (10) fixedly connected with the lamp cup (9) and a light outlet surface (1) covered at the mouth of the lamp cup, and is characterized in that a lamp panel (3) and a drive board (8) are fixed in the lamp cup (9), the lamp panel (3) and the light outlet surface (1) are mutually fixed in the lamp cup (9) in parallel, the drive board (8) and the lamp panel (3) are mutually and vertically fixed in the lamp cup (9) and are connected with the lamp holder (10) through a wire, a linear PWM dimming circuit is arranged on the lamp panel (3), a small high power factor control circuit is arranged on the drive board (8), and the small high power factor control circuit is in signal connection with the linear PWM dimming circuit; the miniaturized high-power-factor control circuit comprises a power factor control circuit and a FLYBACK circuit, wherein the power factor control circuit inputs power factors, the FLYBACK circuit is connected with the output end of the power factor control circuit and supplies power for 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 FLYBACK circuit comprises a switching power supply control chip US31 and a FLYBACK inductor TR11, the model of the switching power supply control chip US31 is PM3303US31, the FLYBACK inductor TR11 consists of four windings of N1, N2, N3 and N4 which are wound on the same framework and are provided with magnetic cores, a winding of N1 is a main winding, one end of the main winding is connected with one end of a capacitor CD21, the other end of the winding of N1 is connected with a DRN pin of a switching power supply control chip US31, a GND pin of the switching power supply control chip US31 is grounded, a FB pin of the switching power supply control chip US31 is connected with one end of a winding of N2, the other end of a winding of N2 and one end of a winding of N3 are connected with one end of a winding of an N4 in parallel to the ground, the other end of the winding of the N4 and the other end of the winding of the N4 are led out to be used as the output end of a linear PWM dimming circuit, a pin of the switching power supply control chip US4 is connected with one end of a resistor HV 36VDD 4, one end of a resistor HV 4, one end of the RS 4 is connected with one end of the RS 4, the CS pin of the switching power supply control chip US31 is connected to one end of the resistor RS31, and the other end of the resistor RS31 is grounded.
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 miniaturized intelligent lamp as claimed in claim 1, 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,
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.
4. A miniature intelligent lamp as claimed in claim 3, wherein one end of said capacitor CD21 is connected to the FLYBACK circuit as the output of the power factor control circuit.
5. The miniaturized intelligent lamp of claim 4, 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 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 positive electrodes of the CW white light circuit and the WW white light circuit are connected in parallel with the negative electrode of a diode DS43, the positive electrode of a diode DS43 is connected with a VIN pin of a constant current PWM control chip US41, the negative electrode of the CW white light circuit is connected with an OUT5 pin of the constant current PWM control chip US41, and the negative electrode of the WW white light circuit is connected with 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 anode of the RGBA lamp circuit, the RGBC lamp circuit and the other end of the resistor RS61 are connected in parallel with the other end of the N4 winding, the cathode of the RGBA lamp circuit is connected with the OUT1 pin of the constant current PWM control chip US41, the cathode of the RGBA lamp circuit is connected with the OUT3 pin of the constant current PWM control chip US41, and the cathode of the RGBC lamp circuit is connected with the OUT2 pin of the constant current PWM control chip US 41;
and the VIN pin of the constant-current PWM control chip US41 is connected with the other end of the N3 winding.
6. A miniaturized intelligent lamp as claimed in claim 5, wherein said module control circuit comprises a WIFI control module US51 and a control switch QS41, said FLYBACK inductor TR11 is connected with a rectifying filter circuit, said rectifying 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 N2 is connected with an anode of a diode DS61, a cathode of the diode DS61 and one end of the capacitor CD61 are connected in parallel with an FB pin of a switching power control chip US31, one end of the 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 DS41 is connected with the other end of the winding N4, the other end of the diode DS41 is connected with one end of the capacitor CD41, one end of the diode DS42 is connected with the other end of the winding N3, the other end of the diode DS42 is connected with a capacitor 42, 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, 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.
7. A miniaturized intelligent lamp as claimed in claim 5 or 6, 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.
8. The miniaturized intelligent lamp as claimed in claim 7, 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 CS 31A;
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.
9. The miniaturized intelligent lamp of claim 8, 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.
CN201911142742.7A 2019-11-20 2019-11-20 Miniaturized intelligent lamp Active CN111385937B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911142742.7A CN111385937B (en) 2019-11-20 2019-11-20 Miniaturized intelligent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911142742.7A CN111385937B (en) 2019-11-20 2019-11-20 Miniaturized intelligent lamp

Publications (2)

Publication Number Publication Date
CN111385937A CN111385937A (en) 2020-07-07
CN111385937B true CN111385937B (en) 2021-11-30

Family

ID=71218488

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911142742.7A Active CN111385937B (en) 2019-11-20 2019-11-20 Miniaturized intelligent lamp

Country Status (1)

Country Link
CN (1) CN111385937B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102904450A (en) * 2011-07-29 2013-01-30 Tdk株式会社 Current-fed isolation converter
CN106535400A (en) * 2016-11-16 2017-03-22 福州大学 Single-stage low-switch-stress and low-output-ripple LED drive circuit

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101925216B (en) * 2010-07-23 2013-02-13 中山市威禾电器制造有限公司 LED street lamp
CN103424602B (en) * 2013-09-02 2015-12-16 南京埃科孚电子科技有限公司 Based on the secondary winding current testing circuit of source drive
US9762131B1 (en) * 2016-05-23 2017-09-12 Inno-Tech Co., Ltd. Flyback converter with no need for the auxiliary winding
US10103636B1 (en) * 2017-09-21 2018-10-16 Dialog Semiconductor Inc. Single-stage power converter with power factor correction
CN107820348B (en) * 2017-12-05 2023-11-24 光美科技有限公司 Linear full-voltage variable-frequency constant-current circuit and LED lamp with same
CN208094847U (en) * 2018-04-10 2018-11-13 浙江榆阳电子有限公司 A kind of efficient low ripple dimming LED drive circuit
CN109555984A (en) * 2018-10-25 2019-04-02 宁波凯耀电器制造有限公司 A kind of Intelligent control LED lamp

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102904450A (en) * 2011-07-29 2013-01-30 Tdk株式会社 Current-fed isolation converter
CN106535400A (en) * 2016-11-16 2017-03-22 福州大学 Single-stage low-switch-stress and low-output-ripple LED drive circuit

Also Published As

Publication number Publication date
CN111385937A (en) 2020-07-07

Similar Documents

Publication Publication Date Title
US9271354B2 (en) Lighting source and lighting apparatus
US9648675B2 (en) Lighting source and lighting apparatus
US20040004446A1 (en) Drive circuit for an led lighting apparatus
EP3468305A1 (en) Bluetooth ceiling lamp
CN105101543A (en) Led drive circuit
US9326340B2 (en) Circuit arrangement for controlling at least one load
US9380661B2 (en) Lighting source and lighting apparatus
CN109618468B (en) LED lamp circuit with intelligent control function
US10492278B2 (en) Bluetooth controller
EP3684144B1 (en) Led light apparatus with adjustable characteristic
US9888538B2 (en) Driving current generation circuit, LED power supply module and LED lamp
CN111385937B (en) Miniaturized intelligent lamp
CN211352538U (en) Miniaturized intelligent lamp
CN217883899U (en) LED modular driving circuit
CN113347759B (en) Five-channel LED driving circuit, driving method and LED lamp
CN214799978U (en) Colored lamp driving circuit and lamp
CN210247114U (en) LED lamp and LED lamp circuit thereof
CN210202128U (en) LED lamp control circuit and LED lamp
CN209146760U (en) Lamps and lanterns and its communication device
Bakshi DESIGNAND DEVELOPMENT OF AN EFFICIENT, HIGH-POWER FACTOR, LOW-COST, RGB LED SYSTEM FORTUNEABLE
CN209782274U (en) Lamp set
CN209845369U (en) Switch multistage LED dimmer circuit that discolours
CN218217737U (en) Isolation dimming color-mixing LED circuit controlled by WIFI
CN219577304U (en) LED drive circuit and LED lamp
CN220545162U (en) Light filling lamp control circuit of alternating current-direct current power supply

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant