CN205336576U - Fan and switch function's intelligent light -adjusting circuit is realized taking with singlechip - Google Patents

The utility model discloses a fan and switch function's intelligent light -adjusting circuit is realized taking with singlechip, the commercial power is connected through the LED constant current source, and fan circuit, constant current dimmer circuit, switch circuit are connected with the LED constant current source respectively, and the other end is connected with taking fan LED lamps and lanterns, then the single chip circuit is connected with fan circuit, constant current dimmer circuit, switch circuit respectively, and the other end and the PWM of single chip circuit adjust luminance the device and are connected. External PWM adjusts luminance the device and when sending the PWM signal, controls constant current dimmer circuit, fan circuit and switch circuit through the single chip circuit. Can realize the luminance adjustment to taking fan LED lamps and lanterns to reach adjustment fan rotation rate and reach the heat dissipation efficiency, can realize the PWM signal simultaneously and open and the pass LED lamps and lanterns and fan through the singlechip. The utility model discloses use programming singlechip intelligent control, realize that fan speed adjustment dispels the heat, the LED lamp is opened and functions such as pass, intelligent light -adjusting.

A kind of chip microcontroller Intelligent dimming circuit with fan and switching function

Technical field

This utility model relates to a kind of light adjusting circuit, especially a kind of chip microcontroller Intelligent dimming circuit with fan and switching function。

Background technology

LED illumination industry quickly grew in recent years, penetrates into the every nook and cranny of our life gradually, makes LED drive on boldly to the direction such as efficient, environmental protection and energy saving, intelligence。But the heat radiation of LED, the life-span of driver, installation wiring construction is complicated and how to move towards intelligent always for the problem of industry research。

Wherein, the Chinese patent of patent No. CN201310429592.4 discloses a kind of LED and drives light adjusting circuit, for driving LED light device, comprising: alternating current power supply, the switch being connected with described alternating current power supply, the LED drive circuit being connected with switch, the switch condition detection circuit being connected with switch and LED luminance selection circuit, one end of LED luminance selection circuit is connected with switch condition detection circuit, the other end is connected with LED drive circuit, wherein, switch condition detection circuit is used for detecting switch and is off or closes, and the result detected is exported to LED luminance selection circuit, the output of LED luminance selection circuit connects LED drive circuit, LED drive circuit controls the brightness of LED light device according to the result of LED luminance selection circuit。

The Chinese patent of patent No. CN201510070717.8 provides a kind of LED light adjusting circuit and LED lamp, it is connected with dimmer switch, including rectification filtering unit, switching device, switch control chip, output unit, sampling resistor and power adjustment unit, described power adjustment unit gathers the waveform of the output voltage of the outfan of described dimmer switch, when described waveform is normal sine wave, regulate the output of described output unit according to described output voltage qualified break-make number of times；When described waveform is for being chopped into sine wave, then the output regulating described output unit is maximum。

The Chinese patent of patent No. CN201410311195.1 discloses a kind of LED sectional dimming circuit, including a light modulation test side, connects the enable signal EN in LED drive chip, in order to detect the system power failure that caused by dimmer switch and to power on；One power generation circuit, provides power supply with the circuit thought within LED sectional dimming circuit；The outfan of power generation circuit connects ring counter and decoder；One ring counter, its input connects light modulation test side, in order to calculate by the number of times of dimmer switch；One decoder, its input connects ring counter, the output signal of ring counter is decoded, to control the output of selection circuit；One selection circuit, it selects signal end to connect decoder, and input each section of reference voltage of termination, in order to select the reference voltage needed as output。

Current LED light adjusting circuit has been commercially a very ripe technology, and the compact LED illumination torch from life, to large LED illuminating lamp, has been directed to LED light adjusting circuit, their application or simple or complicated。But for existing various light adjusting circuits, the components and parts that during some enforcement, structure complexity relates to are more；Lack of wisdom controls, it is impossible to the functions such as fan speed-regulating heat radiation, LED Push And Release and intelligent dimming is fully achieved。

Utility model content

The purpose of this utility model is in that to overcome the deficiencies in the prior art, provides a kind of chip microcontroller Intelligent dimming circuit with fan and switching function at this；Use programming monolithic processor Based Intelligent Control, it is achieved the function such as fan speed-regulating heat radiation, LED Push And Release, intelligent dimming。

This utility model is realized in, construct a kind of chip microcontroller Intelligent dimming circuit with fan and switching function, it is characterised in that: including: LED constant current source, single chip circuit, fan circuit, constant-current dimming circuit, on-off circuit and PWM light modulating device；Described civil power is connected by LED constant current source, described fan circuit, constant-current dimming circuit, on-off circuit are connected with LED constant current source respectively, the other end is connected with band fan LED lamp, then single chip circuit is connected with fan circuit, constant-current dimming circuit, on-off circuit respectively, and the other end of single chip circuit is connected with PWM light modulating device。

According to the chip microcontroller described in the utility model Intelligent dimming circuit with fan and switching function, it is characterized in that: described single chip circuit, including single-chip microcomputer U1, resistance R18, resistance R19, resistance R20, resistance R26, resistance R27, electric capacity C10, electric capacity C13, electric capacity C15, electric capacity C16 and electric capacity C17；Described single-chip microcomputer U1 adopts STM8S003F3/TSOP20 chip；Described electric capacity C10, electric capacity C13, electric capacity C16, electric capacity C15, electric capacity C17, resistance R27 are connected with 4 feet of single-chip microcomputer U1,8 feet, 9 feet, 19 feet, 20 feet, 19 feet respectively, and the other end is connected to ground；Described resistance R18, resistance R19, resistance R20, resistance R26 are connected with 4 feet of single-chip microcomputer U1,11 feet, 12 feet, 19 feet respectively, and the other end is connected with positive 5V；Wherein the 15th foot of single-chip microcomputer U1 is connected with on-off circuit, the 16th foot is connected with constant-current dimming circuit, the 17th foot is connected with fan circuit, the 4th foot and the 18th foot are burning program foot。The peripheral circuit components and parts electric capacity C13 of single-chip microcomputer, electric capacity C10, electric capacity C16, electric capacity C17, electric capacity C15 play filter action, resistance R18, resistance R19, resistance R20, resistance R26 each serve as current limliting hypotensive effect, resistance R27 is used for dividing potential drop, single-chip microcomputer U1 the 4th foot and the burning program effect that the 18th foot is single-chip microcomputer。Positive 5V voltage is powered to single-chip microcomputer U1 through the 9th foot VDD, can cross the 20th foot when extraneous PWM device and send pwm signal to single-chip microcomputer, run through single-chip microcomputer U1 the 15th foot connecting valve circuit through single-chip microcomputer plug-in, LED lamp lighted and radiator fan is opened；When the dutycycle of extraneous pwm signal changes, the constant-current dimming circuit that single-chip microcomputer U1 the 16th foot connects adjusts the brightness size of LED lamp with the change in duty cycle of PWM, and the 17th foot of single-chip microcomputer U1 adjusts the rotary speed (fan revolution speed is directly proportional) of fan to LED luminance with the change in duty cycle of PWM simultaneously；When the pwm signal of extraneous PWM device is No. 0 or when removing, single-chip microcomputer U1 turns off LED lamp and fan by the 15th foot。

According to the chip microcontroller described in the utility model Intelligent dimming circuit with fan and switching function, it is characterized in that: described on-off circuit includes metal-oxide-semiconductor Q2, Zener diode ZD1, audion Q1, resistance R1, described metal-oxide-semiconductor Q2 drain electrode connects with LED lamp series winding, metal-oxide-semiconductor Q2 source electrode is connected to ground, described resistance R1 is connected with metal-oxide-semiconductor Q2 grid, the resistance R1 other end is connected with VCC, described Zener diode ZD1 positive pole is connected with metal-oxide-semiconductor Q2 grid, negative pole is connected to ground, described audion Q1 colelctor electrode is connected with metal-oxide-semiconductor Q2 grid, emitter stage is connected to ground, base stage is connected with the 15th foot ON/OFF of single-chip microcomputer U1。

According to the chip microcontroller described in the utility model Intelligent dimming circuit with fan and switching function, it is characterized in that: described constant-current dimming circuit includes transport and placing device U2, resistance R9, described transport and placing device U2 positive pole is connected with resistance R9, transport and placing device U2 outfan is connected with negative pole, and the resistance R9 other end is connected with the 16th foot DIM of single-chip microcomputer U1。

According to the chip microcontroller described in the utility model Intelligent dimming circuit with fan and switching function, it is characterized in that: described fan circuit includes blood pressure lowering chip U3A, resistance R10, resistance R11, electric capacity C60, described electric capacity C60 is in parallel with resistance R13, described resistance R10 connects with resistance R11, one end connects the FB of blood pressure lowering chip U3A and feeds back foot, and the other end is connected with the 17th foot FAN of single-chip microcomputer U1。

The utility model has the advantage of: this utility model provides a kind of chip microcontroller Intelligent dimming circuit with fan and switching function by improving, when extraneous PWM light modulating device sends pwm signal, control constant-current dimming circuit, fan circuit and on-off circuit through single chip circuit。Can realize the brightness with fan LED lamp is adjusted, and adjustment fan revolution speed reaches heat radiation function, can realize pwm signal simultaneously, by single-chip microcomputer, LED lamp and fan be carried out Push And Release。This utility model also has following features；

First: the circuit structure in this utility model is simple, and components and parts are few。

Second: this utility model uses programming monolithic processor Based Intelligent Control, it is achieved the function such as fan speed-regulating heat radiation, LED Push And Release, intelligent dimming。

3rd: this utility model can greatly reduce the cost of LED lamp heat radiation facility。

Accompanying drawing explanation

Fig. 1 is that this utility model uses the chip microcontroller Intelligent dimming circuit structure chart with fan and switching function

Fig. 2 is single chip circuit schematic diagram in this utility model

Fig. 3 is on-off circuit schematic diagram of the present utility model

Fig. 4 is light adjusting circuit schematic diagram of the present utility model

Fig. 5 is this utility model fan circuit theory diagrams。

Detailed description of the invention

Below in conjunction with accompanying drawing 1-5, this utility model is described in detail, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole embodiments。Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection。

This utility model provides a kind of chip microcontroller Intelligent dimming circuit with fan and switching function by improving, as Figure 1-5, it is possible to be practiced as follows；Including: LED constant current source, single chip circuit, fan circuit, constant-current dimming circuit, on-off circuit and PWM light modulating device；Described civil power is connected by LED constant current source, described fan circuit, constant-current dimming circuit, on-off circuit are connected with LED constant current source respectively, the other end is connected with band fan LED lamp, then single chip circuit is connected with fan circuit, constant-current dimming circuit, on-off circuit respectively, and the other end of single chip circuit is connected with PWM light modulating device。

In conjunction with Fig. 1: when extraneous PWM light modulating device sends pwm signal, control constant-current dimming circuit, fan circuit and on-off circuit through single chip circuit。Can realize the brightness with fan LED lamp is adjusted, and adjustment fan revolution speed reaches heat radiation function, can realize pwm signal simultaneously, by single-chip microcomputer, LED lamp and fan be carried out Push And Release。

In conjunction with Fig. 2: described single chip circuit, including single-chip microcomputer U1(STM8S003F3/TSOP20), resistance R18, resistance R19, resistance R20, resistance R26, resistance R27, electric capacity C10, electric capacity C13, electric capacity C15, electric capacity C16 and electric capacity C17；Described electric capacity C10, electric capacity C13, electric capacity C16, electric capacity C15, electric capacity C17, resistance R27 are connected with 4 feet of single-chip microcomputer U1,8 feet, 9 feet, 19 feet, 20 feet, 19 feet respectively, and the other end is connected to ground；Described resistance R18, resistance R19, resistance R20, resistance R26 are connected with 4 feet of single-chip microcomputer U1,11 feet, 12 feet, 19 feet respectively, and the other end is connected with positive 5V；Wherein the 15th foot of single-chip microcomputer U1 is connected with on-off circuit, the 16th foot is connected with constant-current dimming circuit, the 17th foot is connected with fan circuit, the 4th foot and the 18th foot are burning program foot。

Single chip circuit operation principle: the peripheral circuit components and parts electric capacity C13 of single-chip microcomputer, electric capacity C10, electric capacity C16, electric capacity C17, electric capacity C15 play filter action, resistance R18, resistance R19, resistance R20, resistance R26 each serve as current limliting hypotensive effect, resistance R27 is used for dividing potential drop, single-chip microcomputer U1 the 4th foot and the burning program effect that the 18th foot is single-chip microcomputer。Positive 5V voltage is powered to single-chip microcomputer U1 through the 9th foot VDD, can cross the 20th foot when extraneous PWM device and send pwm signal to single-chip microcomputer, run through single-chip microcomputer U1 the 15th foot connecting valve circuit through single-chip microcomputer plug-in, LED lamp lighted and radiator fan is opened；When the dutycycle of extraneous pwm signal changes, the constant-current dimming circuit that single-chip microcomputer U1 the 16th foot connects adjusts the brightness size of LED lamp with the change in duty cycle of PWM, and the 17th foot of single-chip microcomputer U1 adjusts the rotary speed (fan revolution speed is directly proportional) of fan to LED luminance with the change in duty cycle of PWM simultaneously；When the pwm signal of extraneous PWM device is No. 0 or when removing, single-chip microcomputer U1 turns off LED lamp and fan by the 15th foot。

In conjunction with Fig. 3: described on-off circuit includes metal-oxide-semiconductor Q2, Zener diode ZD1, audion Q1, resistance R1, described metal-oxide-semiconductor Q2 drain electrode and LED lamp series winding connect, metal-oxide-semiconductor Q2 source electrode is connected to ground, described resistance R1 is connected with metal-oxide-semiconductor Q2 grid, the resistance R1 other end is connected with VCC, described Zener diode ZD1 positive pole is connected with metal-oxide-semiconductor Q2 grid, negative pole is connected to ground, and described audion Q1 colelctor electrode is connected with metal-oxide-semiconductor Q2 grid, emitter stage is connected to ground, base stage is connected with the 15th foot ON/OFF of single-chip microcomputer U1。

On-off circuit operation principle: during normal operation, VCC voltage enters R1 blood pressure lowering and enters metal-oxide-semiconductor Q2 grid, through Zener diode ZD1 voltage stabilizing, drives metal-oxide-semiconductor Q2 conducting, and LED lamp is opened and is lit；When reverse PWM enables, audion Q1 turns on, and the voltage that resistance R1 enters mos gate pole is pulled to ground, and metal-oxide-semiconductor cuts, and LED lamp turns off breath and goes out。Therefore, when reverse PWM enables, LED is closed；When reverse PWM does not enable, LED is opened。

In conjunction with Fig. 4: described constant-current dimming circuit includes transport and placing device U2, resistance R9, and described transport and placing device U2 positive pole is connected with R9, transport and placing device U2 outfan is connected with negative pole, and the resistance R9 other end is connected with the 16th foot DIM of single-chip microcomputer U1。

Constant-current dimming circuit operation principle: when pwm signal enters resistance R9, carry out voltage follow by transport and placing device U2 transport and placing device to be strengthened by pwm signal, pwm signal originally is made to be not easy distortion, the REF of transport and placing device U2 output is connected with the current reference point of constant-current source, thus changing output electric current accurately, play light modulation effect。

In conjunction with Fig. 5: described fan circuit includes blood pressure lowering chip U3A, resistance R10, resistance R11, electric capacity C60, described electric capacity C60 is in parallel with resistance R13, described resistance R10 connects with resistance R11, and one end connects the FB of blood pressure lowering chip U3A and feeds back foot, and the other end is connected with the 17th foot FAN of single-chip microcomputer U1。

Fan circuit operation principle: the blood pressure lowering chip U3A in this figure is the blood pressure lowering chip that market is logical, chip the 4th foot FB is feedback foot, output voltage can be set be sized to fan and power, in this utility model, feed back foot series resistance R10, resistance R11 to reverse PWM at chip, when reverse pwm signal enables dutycycle generation change, enter resistance R10, resistance R11 to feeding back foot, thus changing set output voltage, making rotation speed of the fan change, playing adjustment fan speed and making wind-force change。

Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses this utility model。The multiple amendment of these embodiments be will be apparent from for those skilled in the art, and generic principles defined herein when without departing from spirit or scope of the present utility model, can realize in other embodiments。Therefore, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty。