CN108345342B - Power compensation circuit for atomizer - Google Patents
Power compensation circuit for atomizer Download PDFInfo
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- CN108345342B CN108345342B CN201810395611.9A CN201810395611A CN108345342B CN 108345342 B CN108345342 B CN 108345342B CN 201810395611 A CN201810395611 A CN 201810395611A CN 108345342 B CN108345342 B CN 108345342B
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- resistor
- capacitor
- inductor
- triode
- comparator
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/66—Regulating electric power
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/461—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using an operational amplifier as final control device
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- 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
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
The power compensation circuit for the atomizer is characterized by comprising a singlechip MCU, a triode Q1, a triode QP1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor RB1, a resistor RA, a resistor RC1, a resistor R7, a resistor R9, a resistor RS, a capacitor CBC, a capacitor CCE, a capacitor CBE, a capacitor C6, a capacitor C8, a capacitor C9, an inductor L1, an inductor L2, an inductor L3, a comparator U2B and an atomizer FOG, wherein working current forms negative feedback closed loop control through a collector_C and an emitter E- > inductor L2- > inductor L3- > sampling resistor RA- > amplifier input resistor RS- > amplifier reverse input end of the power triode QP 1. Compared with the prior art, the invention has the advantage of ensuring stable output power.
Description
Technical Field
The invention relates to a circuit technology for a nebulizer.
Background
The existing atomizer realizes the atomization function by agitating liquid to form water mist through an ultrasonic generator, and the circuit mainly comprises an oscillating circuit, and in the use process, when the environment temperature or electronic components drift due to long-term working, the current can be increased, so that the output power is unstable to influence the atomization stability.
Disclosure of Invention
The invention aims to provide a power compensation circuit for an atomizer, which can ensure stable output power.
The invention is realized in this way, a power compensation circuit for atomizer, which is characterized in that the power compensation circuit comprises a singlechip MCU, a triode Q1, a triode QP1, a resistor R2, a resistor R3, a resistor R4, a resistor RB1, a resistor RA, a resistor RC1, a resistor R7, a resistor R9, a resistor RS, a capacitor CBC, a capacitor CCE, a capacitor CBE, a capacitor C3, a capacitor C6, a capacitor C8, a capacitor C9, an inductor L1, an inductor L2, an inductor L3, a comparator U2B and an atomizer FOG, wherein the collector of the triode Q1 is connected with a driving power supply, the base of the triode Q1 is connected with the driving power supply through the resistor R2, meanwhile, the base of the triode Q1 is directly connected with the output end of the comparator U2B, the emitter of the triode Q1 is grounded through the resistor R3 and the resistor R4, one end of the inductor L1 is connected between the resistor R3 and the resistor R4, the other end of the inductor L1 is connected with the base of the triode QP1 through the resistor RB1, the collector of triode QP1 is connected with a driving power supply, the emitter of triode QP1 is grounded through an inductor L2, an inductor L3 and a resistor RA in turn, a capacitor C3 is connected between the base and the collector of triode QP1, one end of an atomizer FOG is connected with the driving power supply, the other end of the atomizer FOG is connected with one end of a capacitor CBC, the other end of the capacitor CBC is connected between the inductor L1 and the resistor RB1, one end of a capacitor CBE is connected between the inductor L2 and the inductor L3, the other end of the capacitor CBE is connected with the other end of the capacitor CBC, one end of a capacitor CCE is connected between the inductor L2 and the inductor L3, the other end of the capacitor CCE is connected with the driving power supply, the positive input end of a comparator U2B connected with the driving power supply is connected with the control output of a singlechip MCU through a resistor R7, the reverse input end of the comparator U2B is connected between the inductor L3 and the resistor RA through a resistor RS, the resistor R9 is connected with the capacitor C9 in parallel, after the resistor RC1 and the capacitor C6 are connected in parallel, one end is grounded, the other end is connected to the positive input end of the comparator U2B, one end of the capacitor C8 is connected to the negative input end of the comparator U2B, and the other end is grounded.
When the power transistor QP1 works, the singlechip MCU outputs a control signal PWM signal to the positive input end of the comparator U2B to form a reference voltage, Q1 and QP1 are conducted, the whole circuit is in a capacitance three-point free oscillation working state, and working current passes through the collector_C and the emitter E- > inductance L2- > inductance L3- > sampling resistor RA- > amplifier input resistor RS- > amplifier reverse input end of the power transistor QP1 to form negative feedback closed loop control.
When the ambient temperature or the electronic components drift due to the temperature of long-term operation, the current is increased, and the power does not drift through the automatic compensation of the negative feedback operational amplifier working principle. .
Compared with the prior art, the invention has the advantage of ensuring stable output power.
Drawings
Fig. 1 is a circuit diagram of the present invention.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings and examples:
as shown in figure 1, the invention comprises a singlechip MCU, a triode Q1, a triode QP1, a resistor R2, a resistor R3, a resistor R4, a resistor RB1, a resistor RA, a resistor RC1, a resistor R7, a resistor R9, a resistor RS, a capacitor CBC, a capacitor CCE, a capacitor CBE, a capacitor C3, a capacitor C6, a capacitor C8, a capacitor C9, an inductor L1, an inductor L2, an inductor L3, a comparator U2B and an atomizer FOG, wherein the collector of the triode Q1 is connected with a driving power supply, the base of the triode Q1 is connected with the driving power supply through the resistor R2, meanwhile, the base of the triode Q1 is directly connected with the output end of the comparator U2B, the emitter of the triode Q1 is grounded through the resistor R3 and the resistor R4, one end of the inductor L1 is connected between the resistor R3 and the resistor R4, the other end of the inductor L1 is connected with the base of the triode QP1 through the resistor RB1, the collector of the triode QP1 is connected with the driving power supply, the emitter of triode QP1 is grounded through inductance L2, inductance L3, resistance RA in turn, capacitor C3 connects between base and collector of triode QP1, atomizer FOG one end links to each other with drive power supply, atomizer FOG's the other end links to each other with one of them one end of electric capacity CBC, electric capacity CBC's the other end is connected between inductance L1, resistance RB1, electric capacity CBE one end is connected between inductance L2, inductance L3, the other end is connected at electric capacity CBC's the other end, electric capacity CCE one end is connected between inductance L2, inductance L3, the other end links to each other with drive power supply, the positive input of comparator U2B who links to each other with drive power supply is connected with singlechip MCU's control output through resistance R7, comparator U2B's reverse input passes through resistance RS and is connected between inductance L3 and resistance RA, resistance R9 and electric capacity C9 connect in parallel back, connect between comparator U2B's output, resistance RC1, after electric capacity C6 connects in parallel, one end ground, the other end is connected to the positive input end of the comparator U2B, one end of the capacitor C8 is connected to the negative input end of the comparator U2B, and the other end is grounded.
Claims (1)
1. A power compensation circuit for an atomizer is characterized by comprising a single chip microcomputer MCU, a triode Q1, a triode QP1, a resistor R2, a resistor R3, a resistor R4, a resistor RB1, a resistor RA, a resistor RC1, a resistor R7, a resistor R9, a resistor RS, a capacitor CBC, a capacitor CCE, a capacitor CBE, a capacitor C3, a capacitor C6, a capacitor C8, a capacitor C9, an inductor L1, an inductor L2, an inductor L3, a comparator U2B and an atomizer FOG, wherein a collector of the triode Q1 is connected with a driving power supply, a base of the triode Q1 is connected with the driving power supply through the resistor R2, and simultaneously, the base of the triode Q1 is directly connected with an output end of the comparator U2B through the resistor R3 and the resistor R4, one end of the triode Q1 is connected between the resistor R3 and the resistor R4, one end of the inductor L1 is connected between the resistor R3 and the resistor R4, the other end of the inductor R1 is connected with the base of the resistor RB1 through the resistor RB1, the other end of the inductor L1 is connected with the driving power supply through the capacitor RB 3, the capacitor C3, the other end of the triode QP1 is connected with the capacitor C3, the capacitor C3 is connected with the other end of the inductor C2, the capacitor C2 is connected with the other end of the inductor R2, the inductor R2 is connected with the other end of the inductor R2, the other end of the inductor R2 is connected with the other end of the inductor R2, the inductor R2 is connected with the other end of the resistor R2, the other end of the resistor R2 is connected with the other end of the resistor, and the other end of the resistor R2 is connected with the resistor, and the other end of the resistor, and the other end of the resistor is connected with the resistor, the other end is connected between the resistor, and the other end and the resistor, the other end is, after the capacitor C6 is connected in parallel, one end is grounded, the other end is connected to the positive input end of the comparator U2B, one end of the capacitor C8 is connected to the negative input end of the comparator U2B, the other end is grounded, and the singlechip MCU outputs a control signal PWM signal to the positive input end of the comparator U2B to form a reference voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810395611.9A CN108345342B (en) | 2018-04-27 | 2018-04-27 | Power compensation circuit for atomizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810395611.9A CN108345342B (en) | 2018-04-27 | 2018-04-27 | Power compensation circuit for atomizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108345342A CN108345342A (en) | 2018-07-31 |
| CN108345342B true CN108345342B (en) | 2023-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810395611.9A Active CN108345342B (en) | 2018-04-27 | 2018-04-27 | Power compensation circuit for atomizer |
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| CN (1) | CN108345342B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657859B (en) * | 2019-09-29 | 2021-12-10 | 广东科高电器有限公司 | Waterless dry-burning detection circuit |
| CN110557021A (en) * | 2019-09-29 | 2019-12-10 | 广东科高电器有限公司 | current automatic adjustment high-precision compensation circuit for atomizer |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202238482U (en) * | 2011-09-02 | 2012-05-30 | 杨义根 | Ultrasonic atomizer |
| CN102436283A (en) * | 2011-09-20 | 2012-05-02 | 美的集团有限公司 | Heating power control circuit and control method |
| EP3522959A1 (en) * | 2016-10-04 | 2019-08-14 | Stulz Air Technology Systems, Inc. | Control of ultrasonic nebulizers in a humidifier |
| CN208027209U (en) * | 2018-04-27 | 2018-10-30 | 广东科高电器有限公司 | A kind of atomizer power compensating circuit |
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2018
- 2018-04-27 CN CN201810395611.9A patent/CN108345342B/en active Active
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| CN108345342A (en) | 2018-07-31 |
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