CN206099745U - Ultraviolet lamp air deodorization is monolithic integrated control circuit for clarifier - Google Patents

Abstract

The utility model discloses an ultraviolet lamp air deodorization is monolithic integrated control circuit for clarifier, mainly by transformer T, diode rectifier U1, control chip U2, switch S1, switch S2, triode VT1, triode VT2, triode VT3, triode VT4 to and one end and triode VT4's projecting pole is connected, the constitutions such as resistance R10 of other end ground connection. The utility model discloses can change pulse width and control output voltage effectual enough the suppression or elimination "lower -order harmonic among the input voltage, make output voltage more stable, and the utility model discloses can also adjust the duty cycle of voltage to can accelerate PWM ripples governing speed, improve PWM ripples dynamic behavior, make the PWM ripples more stable, thereby improved the utility model discloses an output voltage's stability.

Description

A kind of ultraviolet lamp air deodorization clarifier single-chip integration control circuit

Technical field

The utility model relates to field of environment protection, is that a kind of ultraviolet lamp air deodorization clarifier is single specifically Piece integral control circuit.

Background technology

With the continuous improvement of continuous progressive and people's quality of life of industrial automation, people want to its living environment Ask and also improve constantly, and air quality is an important mark of environment quality, it directly influences the healthy living of people.

Air purifier has application in house, medical treatment, industrial circle, and house field is with the domestic air purification of unit class Device is the main product in market.Air purifier can remove the particulate matter in air, including anaphylactogen, indoor PM2.5 etc., together When can also solve due to interior caused by finishing or other reasonses, the underground space, in-car volatile organic matter air pollution Problem.The characteristics of having persistence and uncertainty due to the release of the space Air Contamination thing of relative closure, therefore using empty It is internationally recognized to improve one of method of IAQ that gas purifier purifies the air of a room.Wherein, ultraviolet lamp air Deodorization purifier is then a kind of in numerous air deodorization clarifiers, and ultraviolet lamp air deodorization clarifier is using high energy ozone UV The oxygen molecule that ultraviolet beam decomposes in air produces free oxygen, i.e. active oxygen, and the air deodorization clarifier utilizes exhaust equipment Gas is input to after this cleaning equipment, cleaning equipment easily eliminates thin in room air with high energy UV ultraviolet beams The harmful substances such as bacterium, mould, remove the peculiar smell in air, effectively ensure that the respiratory health of people.

However, the output voltage stability of the control circuit of existing ultraviolet lamp air deodorization clarifier is poor, cause purple There is flicker in the ultraviolet beam of the ultraviolet lamp of outside line lamp air deodorization clarifier, causes air purifier effectively right Oxygen molecule in air is decomposed, the effect on driving birds is not good for the free oxygen of generation occur, it is impossible to eliminated well in room air The harmful substances such as bacterium, mould, and the peculiar smell in air can not be well removed, so as to cannot effectively guarantee exhaling for people Inhale health.

Therefore it provides a kind of control circuit of the ultraviolet lamp air deodorization clarifier that can improve output voltage stability is just Become the task of top priority.

Utility model content

The purpose of this utility model is the output of the control circuit for overcoming existing ultraviolet lamp air deodorization clarifier Voltage stability difference defect, there is provided a kind of ultraviolet lamp air deodorization clarifier single-chip integration control circuit.

The utility model is achieved through the following technical solutions：A kind of ultraviolet lamp air deodorization clarifier single-chip integration Control circuit, mainly by transformer T, diode rectifier U1, control chip U2 switch S1, switch S2, triode VT1, three poles Pipe VT2, triode VT3, triode VT4, positive pole is connected with the cathode output end of diode rectifier U1, negative pole and diode The electric capacity C1 that the cathode output end of rectifier U1 is grounded after being connected, one end is connected with the positive pole of electric capacity C1, the other end with it is electric Hold the resistance R1 that is connected of negative pole of C1, positive pole is connected with the cathode output end of diode rectifier U1, negative pole with control core The electric capacity C2 that the ADJ pins of piece U2 are connected, negative pole is connected with the base stage of triode VT1, positive pole Jing after resistance R2 with two poles The electric capacity C3 that the cathode output end of pipe rectifier U1 is connected, N poles are connected with the positive pole of electric capacity C3, P poles Jing after resistance R3 with The diode D1 that the emitter stage of triode VT1 is connected, positive pole is connected with the emitter stage of triode VT1, negative pole Jing resistance R4 The electric capacity C4 being grounded after being connected with the colelctor electrode of triode VT1 afterwards, one end is connected with the emitter stage of triode VT1, another The inductance L that is connected with the emitter stage of triode VT2 of end, positive pole is connected with the colelctor electrode of triode VT3, negative pole and triode The emitter stage of VT2 is collectively forming the electric capacity C5 of the first output end, and P poles are connected with the positive pole of electric capacity C5, N poles and triode VT2 The diode D3 that is connected of emitter stage, P poles are connected with the colelctor electrode of triode VT2, N poles as the second output end voltage stabilizing Diode D2, positive pole is connected Jing after resistance R5 with the base stage of triode VT2, negative pole Jing after resistance R7 with the collection of triode VT4 The electric capacity C6 that electrode is connected, positive pole is connected with the OUTPUT pins of control chip U2, negative pole Jing after resistance R6 with triode The electric capacity C7 that the base stage of VT3 is connected, positive pole is connected with the emitter stage of triode VT3, the electric capacity C8 of minus earth, P poles Jing Be connected with the LAMP pins of control chip U2 after resistance R8, two that N poles are connected Jing after resistance R9 with the base stage of triode VT4 Pole pipe D4, and one end is connected with the emitter stage of triode VT4, the resistance R10 of other end ground connection is constituted.

The Same Name of Ends of transformer T secondary inductance coils is connected with one of input of diode rectifier U1 Connect, its non-same polarity is connected with another input of diode rectifier U1, the Same Name of Ends of its former limit inductance coil and non- Same Name of Ends is collectively forming input；The VDD pins of the control chip U2 respectively with the cathode output end of diode rectifier U1 It is connected with the positive pole of electric capacity C2, its VSS pin is grounded；One end ground connection of the switch S1, the other end and control chip U2 PWR pins are connected；One end of the switch S2 is connected with the ADJ pins of control chip U2, other end ground connection；Three pole The grounded collector of pipe VT1.

To guarantee practical effect of the present utility model, the control chip U2 is JX2998 control chips；The change Depressor T is 10KVS9 serial transformers；The switch S1 and switch S2 are the PB-11D14 buttons of contact resistance≤0.03 Ω Switch.

The utility model compared with prior art, with advantages below and beneficial effect：

(1) the utility model can to input voltage in it is effective enough suppression or eliminate low-order harmonic, change pulse width Carry out controlled output voltage, make output voltage more stable；And the utility model can also be adjusted to the dutycycle of voltage, and energy Accelerate PWM ripple governing speeds, improve PWM ripple dynamic properties, make PWM ripples more stable, so as to improve output of the present utility model Dodging occurs in the stability of voltage, the ultraviolet beam that can effectively prevent the ultraviolet lamp of ultraviolet lamp air deodorization clarifier It is bright, air purifier is decomposed to the oxygen molecule in air well.

(2) control chip U2 of the present utility model is JX2998 control chips, and the chip can have in combination with peripheral circuit The raising stability of the present utility model of effect and reliability.

Description of the drawings

Fig. 1 is integrated circuit structural representation of the present utility model.

Specific embodiment

The utility model is described in further detail with reference to embodiment and its accompanying drawing, but reality of the present utility model Apply mode not limited to this.

As shown in figure 1, the utility model switchs S1 mainly by transformer T, diode rectifier U1, control chip U2, open Close S2, triode VT1, triode VT2, triode VT3, triode VT4, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5, electricity Hold C6, electric capacity C7, electric capacity C8, inductance L, diode D1, Zener diode D2, diode D3, and diode D4 composition.

During connection, the positive pole of electric capacity C1 is connected with the cathode output end of diode rectifier U1, and negative pole is whole with diode The cathode output end of stream device U1 is grounded after being connected.One end of resistance R1 is connected with the positive pole of electric capacity C1, the other end and electric capacity The negative pole of C1 is connected.The positive pole of electric capacity C2 is connected with the cathode output end of diode rectifier U1, negative pole and control chip The ADJ pins of U2 are connected.The negative pole of electric capacity C3 is connected with the base stage of triode VT1, positive pole Jing after resistance R2 with diode The cathode output end of rectifier U1 is connected.

Wherein, the N poles of diode D1 are connected with the positive pole of electric capacity C3, P poles Jing after resistance R3 with the transmitting of triode VT1 Pole is connected.The positive pole of electric capacity C4 is connected with the emitter stage of triode VT1, negative pole Jing after resistance R4 with the collection of triode VT1 Electrode is grounded after being connected.One end of inductance L is connected with the emitter stage of triode VT1, the transmitting of the other end and triode VT2 Pole is connected.The positive pole of electric capacity C5 is connected with the colelctor electrode of triode VT3, the common shape of emitter stage of negative pole and triode VT2 It is connected into the first output end and with blower fan M.The P poles of diode D3 are connected with the positive pole of electric capacity C5, N poles and triode VT2 Emitter stage be connected.The P poles of Zener diode D2 are connected with the colelctor electrode of triode VT2, N poles as the second output end simultaneously It is connected with ultraviolet lamp ZWD.

Meanwhile, the positive pole of electric capacity C6 is connected Jing after resistance R5 with the base stage of triode VT2, and negative pole is Jing after resistance R7 with three The colelctor electrode of pole pipe VT4 is connected.The positive pole of electric capacity C7 is connected with the OUTPUT pins of control chip U2, negative pole Jing resistance R6 It is connected with the base stage of triode VT3 afterwards.The positive pole of electric capacity C8 is connected with the emitter stage of triode VT3, minus earth.Two poles The P poles of pipe D4 are connected Jing after resistance R8 with the LAMP pins of control chip U2, N poles Jing after resistance R9 with the base of triode VT4 Pole is connected.One end of resistance R10 is connected with the emitter stage of triode VT4, other end ground connection.

The Same Name of Ends of transformer T secondary inductance coils is connected with one of input of diode rectifier U1 Connect, its non-same polarity is connected with another input of diode rectifier U1, the Same Name of Ends of its former limit inductance coil and non- Same Name of Ends is collectively forming input and is connected with civil power；The VDD pins of the control chip U2 respectively with diode rectifier The cathode output end of U1 is connected with the positive pole of electric capacity C2, its VSS pins ground connection；One end ground connection of the switch S1, the other end It is connected with the PWR pins of control chip U2；One end of the switch S2 is connected with the ADJ pins of control chip U2, another End ground connection；The grounded collector of the triode VT1.

During operation, transformer T of the present utility model carries out step-down process to the civil power being input into, the alternating voltage after the process Diode rectifier U1, low exchanges of the diode rectifier U1 to receiving are transferred to after the secondary inductance coil of transformer T Voltage carries out being converted to 12V DC voltages after rectification.The 12V DC voltages are imported into the filter formed by electric capacity C1 and resistance R1 Ripple device, the wave filter is eliminated or suppressed to the low-order harmonic in DC voltage, makes DC voltage cleaner, more steady, filter DC voltage after process is transferred to control chip U2 by ripple device, when switch S1 and switch S2 be off-state, control chip U2 FAN pin and LAMP pin output low level, blower fan M and ultraviolet lamp ZWD do not work.

After SW1 keys are pressed, FAN pin output 100%PWM ripples, PWM ripple Jing triode VT1, the electric capacity of the FAN pin output C3, electric capacity C4, diode D1 and inductance L-shaped into pulse width regulating circuit be transmitted, the pulse width regulating circuit can change PWM ripples Speed, improves PWM ripple dynamic properties, makes PWM ripples more stable, and the high driving current of the OUTPUT pins of control chip U2 output The current detection circuit that then Jing electric capacity C5, electric capacity C7, resistance R6 and triode VT3 are formed effectively reduces the leakage of output current Electric current and loss current, and the unusual fluctuations of output current can be suppressed, make output current keep stable, the Jing current detection circuits The positive pole transmission fan M driving stages of the drive circuit Jing electric capacity C5 after process, the voltage then Jing after pulse width regulating circuit process The fortune pole of fan M is transmitted after inductance L, now blower fan M is operated in as maximum quantity of wind state, while the LAMP pin of control chip U2 The booster circuit that output high level Jing diode D4, triode VT4 and electric capacity C6 are formed, the high voltage Jing of the booster circuit output Power for ultraviolet lamp ZWD after Zener diode D2, the terminals ground connection of ultraviolet lamp ZWD, end ultraviolet lamp ZWD obtains electric After be lit, ultraviolet lamp ZWD transmission high energy ozone UV ultraviolet beams to the oxygen molecule in air carry out decompose produce trip From oxygen, i.e. active oxygen, the air deodorization clarifier is input to gas after this cleaning equipment using exhaust equipment, cleaning equipment fortune The harmful substances such as bacterium, mould in room air are easily eliminated with high energy UV ultraviolet beams, the peculiar smell in air is removed, is protected Hinder the respiratory health of you and household.

Meanwhile, when the air quality in ultraviolet lamp air deodorization clarifier working range is in shape, then by SW1 Key, then return to the first step.SW2 keys are air quantity adjusting keys, and SW2 keys are pressed under blower fan M working conditions, and the PWM ripples of FAN pin output exist Change between 100% and 50%, air quantity is switched over therewith between height, the LAMP pin of control chip U2 reduce output electricity It is flat, the ozone UV ultraviolet beam weakeneds of ultraviolet lamp ZWD, so as to ultraviolet lamp air deodorization clarifier reduces output work Rate, that is, reduce the consumption to electric energy, therefore, the utility model also achieves the effect of energy-conservation.

To guarantee practical effect of the present utility model, the control chip U2 is JX2998 control chips；The change Depressor T is 10KVS9 serial transformers；The switch S1 and switch S2 are the PB-11D14 buttons of contact resistance≤0.03 Ω Switch.

According to above-described embodiment, you can realize the utility model well.

Claims (4)

1. a kind of ultraviolet lamp air deodorization clarifier single-chip integration control circuit, it is characterised in that main by transformer T, Diode rectifier U1, control chip U2, switch S1, switch S2, triode VT1, triode VT2, triode VT3, triode VT4, positive pole is connected with the cathode output end of diode rectifier U1, the cathode output end phase of negative pole and diode rectifier U1 The electric capacity C1 being grounded after connection, one end is connected with the positive pole of electric capacity C1, the resistance that the other end is connected with the negative pole of electric capacity C1 R1, positive pole is connected with the cathode output end of diode rectifier U1, the electricity that negative pole is connected with the ADJ pins of control chip U2 Hold C2, negative pole is connected with the base stage of triode VT1, positive pole Jing after resistance R2 with the cathode output end phase of diode rectifier U1 The electric capacity C3 of connection, N poles are connected with the positive pole of electric capacity C3, P poles are connected Jing after resistance R3 with the emitter stage of triode VT1 Diode D1, positive pole is connected with the emitter stage of triode VT1, negative pole is connected Jing after resistance R4 with the colelctor electrode of triode VT1 The electric capacity C4 being grounded after connecing, one end is connected with the emitter stage of triode VT1, the other end is connected with the emitter stage of triode VT2 The inductance L for connecing, it is defeated that positive pole is connected with the colelctor electrode of triode VT3, the emitter stage of negative pole and triode VT2 is collectively forming first Go out the electric capacity C5 at end, the diode D3 that P poles are connected with the positive pole of electric capacity C5, N poles are connected with the emitter stage of triode VT2, P Pole is connected with the colelctor electrode of triode VT2, N poles as the second output end Zener diode D2, positive pole Jing after resistance R5 with The electric capacity C6 that the base stage of triode VT2 is connected, negative pole is connected Jing after resistance R7 with the colelctor electrode of triode VT4, positive pole with The electric capacity C7 that the OUTPUT pins of control chip U2 are connected, negative pole is connected Jing after resistance R6 with the base stage of triode VT3, just Pole is connected with the emitter stage of triode VT3, the electric capacity C8 of minus earth, P poles Jing after resistance R8 with the LAMP of control chip U2 The diode D4 that pin is connected, N poles are connected Jing after resistance R9 with the base stage of triode VT4, and one end and triode VT4 Emitter stage be connected, the other end ground connection resistance R10 composition；The Same Name of Ends of the transformer T secondary inductance coils and two poles One of input of pipe rectifier U1 is connected, its non-same polarity is connected with another input of diode rectifier U1 Connect, the Same Name of Ends of its former limit inductance coil and non-same polarity are collectively forming input；The VDD pins difference of the control chip U2 It is connected with the cathode output end of diode rectifier U1 and the positive pole of electric capacity C2, its VSS pin is grounded；The one of the switch S1 End ground connection, the other end are connected with the PWR pins of control chip U2；Manage with the ADJ of control chip U2 one end of the switch S2 Pin is connected, the other end is grounded；The grounded collector of the triode VT1.

2. a kind of ultraviolet lamp air deodorization clarifier single-chip integration control circuit according to claim 1, its feature It is that the control chip U2 is JX2998 control chips.

3. a kind of ultraviolet lamp air deodorization clarifier single-chip integration control circuit according to claim 2, its feature It is that the transformer T is 10KVS9 serial transformers.

4. a kind of ultraviolet lamp air deodorization clarifier single-chip integration control circuit according to claim 3, its feature It is that the switch S1 and switch S2 is the PB-11D14 key switches of contact resistance≤0.03 Ω.