CN111934536A - Sound power amplification power supply circuit with power factor correction - Google Patents
Sound power amplification power supply circuit with power factor correction Download PDFInfo
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- CN111934536A CN111934536A CN202010830880.0A CN202010830880A CN111934536A CN 111934536 A CN111934536 A CN 111934536A CN 202010830880 A CN202010830880 A CN 202010830880A CN 111934536 A CN111934536 A CN 111934536A
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- 230000003321 amplification Effects 0.000 title abstract description 5
- 238000003199 nucleic acid amplification method Methods 0.000 title abstract description 5
- 239000003990 capacitor Substances 0.000 claims abstract description 54
- 230000005669 field effect Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
- H02M1/4208—Arrangements for improving power factor of AC input
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0048—Circuits or arrangements for reducing losses
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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)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses a power supply circuit of a sound power amplifier with power factor correction, wherein an N-line input end and an L-line input end of the circuit are respectively connected with two input ends of a common-mode inductor L8, one output end of the inductor L8 is divided into three paths, the first path is grounded through a capacitor CY1, the second path is connected with the other output end of the L8 through a capacitor CX1, the third path is connected with one input end of a common-mode inductor L1, the other output end of the inductor L8 is divided into two paths, the first path is grounded through a capacitor CY2, the second path is connected with the other input end of the inductor L1, one output end of the inductor L1 is divided into six paths, the first path is connected with the other output end of the L1 through a capacitor CX2, and the second path is connected with the other output end of the L1 after sequentially passing through a resistor. A power factor correction circuit is added into the power supply circuit, so that the power amplification efficiency is improved, and the loss is reduced.
Description
Technical Field
The invention relates to the technical field of power circuits, in particular to a power circuit of a sound box power amplifier with power factor correction.
Background
As an amusement device, the sound box exists in the world in the presence of people for a long time, but the traditional sound box is only used for amplifying sound, the intelligent and convenient-to-control experience is lacked, the efficiency of the power amplifier power supply in the past is low, and the electric energy consumption is high.
Disclosure of Invention
The invention aims to solve the technical problem of how to provide a power supply circuit of a sound box power amplifier with power factor correction, which can improve the efficiency of a power supply and reduce the loss.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides a take stereo set power amplifier power supply circuit of power factor correction which characterized in that: the N line input end and the L line input end of the circuit are respectively connected with two input ends of a common mode inductor L8, an output end of an inductor L8 is divided into three paths, the first path is grounded through a capacitor CY1, the second path is connected with another output end of the L8 through a capacitor CX1, the third path is connected with an input end of the common mode inductor L1, another output end of the inductor L8 is divided into two paths, the first path is grounded through a capacitor CY2, the second path is connected with another input end of the inductor L1, an output end of the inductor L1 is divided into six paths, the first path is connected with another output end of the L1 through a capacitor CX2, the second path is connected with another output end of the L1 through a resistor R58 and a resistor R59 in sequence, the third path is connected with another output end of the L1 through a resistor R8 and a resistor R61 in sequence, the fourth path is grounded through a capacitor C42, and the fifth path is connected with an input end of, the sixth circuit is connected with one end of a capacitor C43, the other end of the inductor L1 is grounded after passing through a resistor R24 and a capacitor C44, the other input end of the rectifier bridge D1 is connected with one output end of the D1 through a capacitor C45, the other end of the capacitor C43 is divided into four paths, the first path is connected with the output end of the power circuit through a diode D19 and a diode D2 in sequence, the second path is connected with the 10 pin of a transformer T1 through an inductor L2, the third path is grounded through a capacitor C1, the fourth path is connected with the output end of the D1, the output end of the T1 is connected with the output end of the power circuit after passing through a diode D3, the 4-pin of the T1 is grounded, the pin 3 of the T1 is divided into two paths after passing through a resistor R3, the first path is grounded through a resistor R4, the second path is connected with the pin 8 of the TEA19162T type chip IC1, the 6 pins of the IC1 are divided into three paths, the first path is connected with the junction of a resistor R24 and a capacitor C44 after passing through a resistor R1 and a resistor R2; the second path is grounded through a capacitor C4, and the third path is grounded through a diode D5, a resistor R5 and a resistor R6 in sequence; pins 7 of the IC1 are respectively divided into two paths, wherein the first path is grounded through a capacitor C6, and the second path is grounded through a capacitor C5 and a resistor R7; the pins 5 of the IC1 are divided into two paths, the first path is grounded through a resistor R18, and the second path is grounded after sequentially passing through resistors R15-R17 and a capacitor CY 3; the 2 pin of the IC1 is grounded; the 4 pins of the IC1 are divided into two paths, the first path is grounded through a capacitor C8, the second path is connected with a power supply VCC, the 3 pins of the IC1 are divided into three paths, the first path is connected with the VREF output end through a resistor R10, the second path is grounded through a resistor R55, and the third path is connected with the source electrode of a field effect transistor Q1 through a resistor R11; one end of the resistor R12 is grounded, and the other end is connected with the source electrode of the Q1; one end of the resistor R13 is connected with the pin 9 of the T1 through a capacitor C10, and the other end of the resistor R13 is grounded through a resistor R14; the pin 1 of the IC1 is divided into two paths after passing through a resistor R8, the first path is connected with the grid electrode of the Q1 through a resistor R9, the second path is connected with the source electrode of the Q1 after passing through a diode D6 and a resistor R52, and the grid electrode of the Q1 is connected with the junction point of the diode D6 and the resistor R52; the drain of the Q1 is connected with the 9 pin of the T1.
The further technical scheme is as follows: n line input of power supply circuit is provided with potentiometre RT1, power supply circuit's L line input is provided with fuse F1.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: a power factor correction circuit is added into the power supply circuit, so that the power amplification efficiency is improved, and the loss is reduced.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic diagram of a power supply circuit according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
As shown in fig. 1, an embodiment of the present invention discloses a power circuit of a sound power amplifier with power factor correction, where an N-line input end and an L-line input end of the power circuit are respectively connected to two input ends of a common mode inductor L8, the N-line input end of the power circuit is provided with a potentiometer RT1, and the L-line input end of the power circuit is provided with a fuse F1. One output end of the inductor L8 is divided into three paths, the first path is grounded through a capacitor CY1, the second path is connected with the other output end of the L8 through a capacitor CX1, the third path is connected with one input end of the common mode inductor L1, the other output end of the inductor L8 is divided into two paths, the first path is grounded through a capacitor CY2, the second path is connected with the other input end of the inductor L1, one output end of the inductor L1 is divided into six paths, the first path is connected with the other output end of the L1 through a capacitor CX2, the second path is connected with the other output end of the L1 after sequentially passing through a resistor R58 and a resistor R59, the third path is connected with the other output end of the L1 after sequentially passing through a resistor R60 and a resistor R61, the fourth path is grounded through a capacitor C42, the fifth path is connected with one input end of a rectifier bridge D1, the sixth path is connected with one end of a capacitor C43, and the other end of the inductor L1 is grounded through a resistor R24 and a capacitor C44;
the other input end of the rectifier bridge D1 is connected with one output end of the D1 through a capacitor C45, the other end of the capacitor C43 is divided into four paths, the first path is connected with the output end of the power supply circuit through a diode D19 and a diode D2 in sequence, the second path is connected with the 10 pin of a transformer T1 through an inductor L2, the third path is grounded through a capacitor C1, the fourth path is connected with the output end of the D1, the output end of the T1 is connected with the output end of the power supply circuit through a diode D3, the 4 pin of the T1 is grounded, the 3 pin of the T1 is divided into two paths through a resistor R3, the first path is grounded through a resistor R4, the second path is connected with the 8 pin of a TEA19162T type chip IC1, the 6 pin of the IC1 is divided into three paths, the first path is connected with a resistor R1 and a resistor R2, and then connected with the R68628 and; the second path is grounded through a capacitor C4, and the third path is grounded through a diode D5, a resistor R5 and a resistor R6 in sequence; pins 7 of the IC1 are respectively divided into two paths, wherein the first path is grounded through a capacitor C6, and the second path is grounded through a capacitor C5 and a resistor R7; the pins 5 of the IC1 are divided into two paths, the first path is grounded through a resistor R18, and the second path is grounded after sequentially passing through resistors R15-R17 and a capacitor CY 3; the 2 pin of the IC1 is grounded; the 4 pins of the IC1 are divided into two paths, the first path is grounded through a capacitor C8, the second path is connected with a power supply VCC, the 3 pins of the IC1 are divided into three paths, the first path is connected with the VREF output end through a resistor R10, the second path is grounded through a resistor R55, and the third path is connected with the source electrode of a field effect transistor Q1 through a resistor R11; one end of the resistor R12 is grounded, and the other end is connected with the source electrode of the Q1; one end of the resistor R13 is connected with the pin 9 of the T1 through a capacitor C10, and the other end of the resistor R13 is grounded through a resistor R14; the pin 1 of the IC1 is divided into two paths after passing through a resistor R8, the first path is connected with the grid electrode of the Q1 through a resistor R9, the second path is connected with the source electrode of the Q1 after passing through a diode D6 and a resistor R52, and the grid electrode of the Q1 is connected with the junction point of the diode D6 and the resistor R52; the drain of the Q1 is connected with the 9 pin of the T1.
A power factor correction circuit is added into the power supply circuit, so that the power amplification efficiency is improved, and the loss is reduced.
Claims (2)
1. The utility model provides a take stereo set power amplifier power supply circuit of power factor correction which characterized in that: the N line input end and the L line input end of the circuit are respectively connected with two input ends of a common mode inductor L8, an output end of an inductor L8 is divided into three paths, the first path is grounded through a capacitor CY1, the second path is connected with another output end of the L8 through a capacitor CX1, the third path is connected with an input end of the common mode inductor L1, another output end of the inductor L8 is divided into two paths, the first path is grounded through a capacitor CY2, the second path is connected with another input end of the inductor L1, an output end of the inductor L1 is divided into six paths, the first path is connected with another output end of the L1 through a capacitor CX2, the second path is connected with another output end of the L1 through a resistor R58 and a resistor R59 in sequence, the third path is connected with another output end of the L1 through a resistor R8 and a resistor R61 in sequence, the fourth path is grounded through a capacitor C42, and the fifth path is connected with an input end of, the sixth circuit is connected with one end of a capacitor C43, the other end of the inductor L1 is grounded after passing through a resistor R24 and a capacitor C44, the other input end of the rectifier bridge D1 is connected with one output end of the D1 through a capacitor C45, the other end of the capacitor C43 is divided into four paths, the first path is connected with the output end of the power circuit through a diode D19 and a diode D2 in sequence, the second path is connected with the 10 pin of a transformer T1 through an inductor L2, the third path is grounded through a capacitor C1, the fourth path is connected with the output end of the D1, the output end of the T1 is connected with the output end of the power circuit after passing through a diode D3, the 4-pin of the T1 is grounded, the pin 3 of the T1 is divided into two paths after passing through a resistor R3, the first path is grounded through a resistor R4, the second path is connected with the pin 8 of the TEA19162T type chip IC1, the 6 pins of the IC1 are divided into three paths, the first path is connected with the junction of a resistor R24 and a capacitor C44 after passing through a resistor R1 and a resistor R2; the second path is grounded through a capacitor C4, and the third path is grounded through a diode D5, a resistor R5 and a resistor R6 in sequence; pins 7 of the IC1 are respectively divided into two paths, wherein the first path is grounded through a capacitor C6, and the second path is grounded through a capacitor C5 and a resistor R7; the pins 5 of the IC1 are divided into two paths, the first path is grounded through a resistor R18, and the second path is grounded after sequentially passing through resistors R15-R17 and a capacitor CY 3; the 2 pin of the IC1 is grounded; the 4 pins of the IC1 are divided into two paths, the first path is grounded through a capacitor C8, the second path is connected with a power supply VCC, the 3 pins of the IC1 are divided into three paths, the first path is connected with the VREF output end through a resistor R10, the second path is grounded through a resistor R55, and the third path is connected with the source electrode of a field effect transistor Q1 through a resistor R11; one end of the resistor R12 is grounded, and the other end is connected with the source electrode of the Q1; one end of the resistor R13 is connected with the pin 9 of the T1 through a capacitor C10, and the other end of the resistor R13 is grounded through a resistor R14; the pin 1 of the IC1 is divided into two paths after passing through a resistor R8, the first path is connected with the grid electrode of the Q1 through a resistor R9, the second path is connected with the source electrode of the Q1 after passing through a diode D6 and a resistor R52, and the grid electrode of the Q1 is connected with the junction point of the diode D6 and the resistor R52; the drain of the Q1 is connected with the 9 pin of the T1.
2. The power amplifier circuit of claim 1, wherein: n line input of power supply circuit is provided with potentiometre RT1, power supply circuit's L line input is provided with fuse F1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010830880.0A CN111934536B (en) | 2020-08-18 | 2020-08-18 | Sound power amplifier source circuit with power factor correction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010830880.0A CN111934536B (en) | 2020-08-18 | 2020-08-18 | Sound power amplifier source circuit with power factor correction |
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| Publication Number | Publication Date |
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| CN111934536A true CN111934536A (en) | 2020-11-13 |
| CN111934536B CN111934536B (en) | 2024-04-26 |
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| CN202010830880.0A Active CN111934536B (en) | 2020-08-18 | 2020-08-18 | Sound power amplifier source circuit with power factor correction |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160380531A1 (en) * | 2015-06-26 | 2016-12-29 | Sharp Kabushiki Kaisha | Power factor correction circuit and power supply device |
| CN107294184A (en) * | 2017-08-21 | 2017-10-24 | 深圳市乔威电源有限公司 | A kind of multichannel portable power source charging device |
| CN207542993U (en) * | 2017-12-01 | 2018-06-26 | 帝发技术(无锡)有限公司 | A kind of power circuit with power factor |
| CN207559867U (en) * | 2017-09-07 | 2018-06-29 | 广州市铜源电子有限公司 | Energy-saving electric power distributor |
| CN108306498A (en) * | 2017-12-29 | 2018-07-20 | 河南北瑞电子科技有限公司 | A kind of power factor correcting for Switching Power Supply |
| CN111181377A (en) * | 2020-01-07 | 2020-05-19 | 茂硕电源科技股份有限公司 | Power factor correction circuit |
| CN212726849U (en) * | 2020-08-18 | 2021-03-16 | 东莞市龙健电子有限公司 | Sound power amplification power supply circuit with power factor correction |
-
2020
- 2020-08-18 CN CN202010830880.0A patent/CN111934536B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160380531A1 (en) * | 2015-06-26 | 2016-12-29 | Sharp Kabushiki Kaisha | Power factor correction circuit and power supply device |
| CN107294184A (en) * | 2017-08-21 | 2017-10-24 | 深圳市乔威电源有限公司 | A kind of multichannel portable power source charging device |
| CN207559867U (en) * | 2017-09-07 | 2018-06-29 | 广州市铜源电子有限公司 | Energy-saving electric power distributor |
| CN207542993U (en) * | 2017-12-01 | 2018-06-26 | 帝发技术(无锡)有限公司 | A kind of power circuit with power factor |
| CN108306498A (en) * | 2017-12-29 | 2018-07-20 | 河南北瑞电子科技有限公司 | A kind of power factor correcting for Switching Power Supply |
| CN111181377A (en) * | 2020-01-07 | 2020-05-19 | 茂硕电源科技股份有限公司 | Power factor correction circuit |
| CN212726849U (en) * | 2020-08-18 | 2021-03-16 | 东莞市龙健电子有限公司 | Sound power amplification power supply circuit with power factor correction |
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| CN111934536B (en) | 2024-04-26 |
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