CN216056807U - Secondary frequency conversion DC power supply control circuit - Google Patents
Secondary frequency conversion DC power supply control circuit Download PDFInfo
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- CN216056807U CN216056807U CN202122268642.8U CN202122268642U CN216056807U CN 216056807 U CN216056807 U CN 216056807U CN 202122268642 U CN202122268642 U CN 202122268642U CN 216056807 U CN216056807 U CN 216056807U
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 11
- 239000003990 capacitor Substances 0.000 claims abstract description 67
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 238000001914 filtration Methods 0.000 abstract 1
- 238000010923 batch production Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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Abstract
The utility model discloses a secondary frequency conversion direct-current power supply control circuit which comprises a main control chip U1, a polar capacitor EC1, a polar capacitor EC2, a polar capacitor EC3, a polar capacitor EC4, a diode D1, a diode D2 and a diode D3, wherein a second pin of the main control chip U1 is connected with a power supply input end, a second pin of a main control chip U1 is connected with an eighth pin of the main control chip U1 through an inductor L1, a second pin of the main control chip U1 is connected with a seventh pin of the main control chip U1 through an inductor L1, and a third pin of the main control chip U1 is grounded through a resistor R2. The utility model can simultaneously realize positive voltage output and negative voltage output, avoids using a transformer, reduces the production cost, provides ultrahigh frequency and high frequency voltage without rectification and filtering by the coupling of the polar capacitor EC2, has stable output voltage, small ripple and wide output voltage range, and meets the working requirements of different audio systems.
Description
Technical Field
The utility model relates to the technical field of control circuits, in particular to a secondary variable frequency direct current power supply control circuit.
Background
The existing audio power output is generally the lifting transformation output of the existing voltage through a transformer, but the transformer can only realize the output of the independent positive voltage or negative voltage, and meanwhile, the transformer is high in cost and not beneficial to batch production, the output voltage is unstable, the output voltage range is narrow, the ripple is large, and the working requirement of an audio system cannot be met. Therefore, there is a need for improvements in the prior art to avoid the disadvantages of the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provide a secondary variable frequency direct current power supply control circuit with stable output voltage and small ripple waves.
The utility model is realized by the following technical scheme:
a secondary frequency conversion direct current power supply control circuit comprises a main control chip U1, a polar capacitor EC1, a polar capacitor EC2, a polar capacitor EC3, a polar capacitor EC4, a diode D1, a diode D2 and a diode D3, wherein a second pin of the main control chip U1 is connected with a power supply input end, a second pin of the main control chip U1 is connected with an eighth pin of the main control chip U1 through an inductor L1, a second pin of the main control chip U1 is connected with a seventh pin of the main control chip U1 through an inductor L1, a third pin of the main control chip U1 is grounded through a resistor R2, a third pin of the main control chip U1 is connected with a power supply output positive electrode through a resistor R1, a positive electrode of the polar capacitor EC2 is connected with the seventh pin of the main control chip U1, a negative electrode of the polar capacitor EC2 is connected with a positive electrode of the diode D3, a negative electrode of the diode D3 is grounded, the positive pole of the diode D1 is connected with the seventh pin of the main control chip U1, the negative pole of the diode D1 is connected with the positive pole of the power output, the positive pole of the diode D2 is connected with the negative pole of the power output, the negative pole of the diode D2 is connected with the positive pole of the diode D3, the positive pole of the polar capacitor EC3 is connected with the positive pole of the power output, the negative pole of the polar capacitor EC3 is grounded, the polar capacitor EC3 is connected in parallel with a capacitor C2, the positive pole of the polar capacitor EC4 is grounded, the negative pole of the polar capacitor EC4 is connected with the negative pole of the power output, and the polar capacitor EC4 is connected in parallel with a capacitor C3.
Furthermore, the model of the main control chip U1 is XL 6007-E.
Further, the positive electrode of the polar capacitor EC1 is connected to the second pin of the main control chip U1, the negative electrode of the polar capacitor EC1 is grounded, and the polar capacitor EC1 is connected in parallel to a capacitor C1.
Further, a fifth pin of the main control chip U1 is grounded.
Further, a sixth pin of the main control chip U1 is grounded.
Further, a fifth pin of the main control chip U1 is connected to a sixth pin of the main control chip U1.
Compared with the prior art, the output voltage is controlled by arranging the main control chip U1, the inductor L1, the polar capacitor EC2, the polar capacitor EC3, the polar capacitor EC4, the diode D1, the diode D2 and the diode D3, positive voltage output and negative voltage output can be realized simultaneously, a transformer is avoided, the production cost is reduced, batch production is facilitated, ultrahigh frequency and high-frequency voltage which is not rectified and filtered are provided by coupling of the polar capacitor EC2, the output voltage is stable, the ripple is small, the output voltage range is wide, and the working requirements of different audio systems are met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic circuit diagram of a double-conversion dc power control circuit according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be 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.
As shown in fig. 1, the secondary variable frequency dc power control circuit of the present invention includes a main control chip U1, a polar capacitor EC1, a polar capacitor EC2, a polar capacitor EC3, a polar capacitor EC4, a diode D1, a diode D2 and a diode D3, wherein a second pin of the main control chip U1 is connected to a power input terminal, a second pin of the main control chip U1 is connected to an eighth pin of the main control chip U1 through an inductor L1, a second pin of the main control chip U1 is connected to a seventh pin of the main control chip U1 through an inductor L1, a third pin of the main control chip U1 is grounded through a resistor R2, a third pin of the main control chip U1 is connected to a power output positive electrode through a resistor R1, a positive electrode of the polar capacitor EC2 is connected to a seventh pin of the main control chip U1, a negative electrode of the polar capacitor EC2 is connected to a positive electrode of the diode D3, a negative electrode of the diode D3 is grounded, a positive electrode of the diode D35 1 is connected to the seventh pin of the main control chip U1, the negative electrode of the diode D1 is connected with the positive electrode of the power output, the positive electrode of the diode D2 is connected with the negative electrode of the power output, the negative electrode of the diode D2 is connected with the positive electrode of the diode D3, the positive electrode of the polar capacitor EC3 is connected with the positive electrode of the power output, the negative electrode of the polar capacitor EC3 is grounded, the polar capacitor EC3 is connected with a capacitor C2 in parallel, the positive electrode of the polar capacitor EC4 is grounded, the negative electrode of the polar capacitor EC4 is connected with the negative electrode of the power output, and the polar capacitor EC4 is connected with a capacitor C3 in parallel. The output voltage is controlled by arranging the main control chip U1, the inductor L1, the polar capacitor EC2, the polar capacitor EC3, the polar capacitor EC4, the diode D1, the diode D2 and the diode D3, the positive voltage output and the negative voltage output can be realized simultaneously, a transformer is avoided, the production cost is reduced, the mass production is facilitated, the polar capacitor EC2 is coupled to provide ultrahigh frequency and high-frequency voltage which is not rectified and filtered, the output voltage is stable, the ripple is small, the output voltage range is wide, and the working requirements of different audio systems are met.
As a specific implementation mode, the model of the main control chip U1 is XL 6007-E.
The positive pole of the polar capacitor EC1 is connected with the second pin of the main control chip U1, the negative pole of the polar capacitor EC1 is grounded, and the polar capacitor EC1 is connected with a capacitor C1 in parallel, so that the input voltage is prevented from being overlarge, and the overcurrent protection effect is realized.
The fifth pin of the main control chip U1 is grounded, which protects the main control chip U1.
The sixth pin of the main control chip U1 is grounded, which protects the main control chip U1.
The fifth pin of the main control chip U1 is connected to the sixth pin of the main control chip U1 to maintain the level balance of the main control chip U1.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. The utility model provides a secondary frequency conversion DC power supply control circuit which characterized in that: the LED driving circuit comprises a main control chip U1, a polar capacitor EC1, a polar capacitor EC2, a polar capacitor EC3, a polar capacitor EC4, a diode D1, a diode D2 and a diode D3, wherein a second pin of the main control chip U1 is connected with a power supply input end, a second pin of the main control chip U1 is connected with an eighth pin of the main control chip U1 through an inductor L1, a second pin of the main control chip U1 is connected with a seventh pin of the main control chip U1 through an inductor L1, a third pin of the main control chip U1 is grounded through a resistor R2, a third pin of the main control chip U1 is connected with a power supply output positive electrode through a resistor R1, a positive electrode of the polar capacitor EC2 is connected with a seventh pin of the main control chip U1, a negative electrode of the polar capacitor EC2 is connected with a positive electrode of the diode D3, a negative electrode of the diode D3 is grounded, and a positive electrode of the diode D1 is connected with the seventh pin 1 of the main control chip U73742, the negative electrode of the diode D1 is connected with the positive electrode of the power output, the positive electrode of the diode D2 is connected with the negative electrode of the power output, the negative electrode of the diode D2 is connected with the positive electrode of the diode D3, the positive electrode of the polar capacitor EC3 is connected with the positive electrode of the power output, the negative electrode of the polar capacitor EC3 is grounded, the polar capacitor EC3 is connected in parallel with a capacitor C2, the positive electrode of the polar capacitor EC4 is grounded, the negative electrode of the polar capacitor EC4 is connected with the negative electrode of the power output, and the polar capacitor EC4 is connected in parallel with a capacitor C3.
2. The double-conversion DC power supply control circuit according to claim 1, characterized in that: the model of the main control chip U1 is XL 6007-E.
3. The double-conversion DC power supply control circuit according to claim 1, characterized in that: the positive electrode of the polar capacitor EC1 is connected with the second pin of the main control chip U1, the negative electrode of the polar capacitor EC1 is grounded, and the polar capacitor EC1 is connected with a capacitor C1 in parallel.
4. The double-conversion DC power supply control circuit according to claim 1, characterized in that: the fifth pin of the main control chip U1 is grounded.
5. The double-conversion DC power supply control circuit according to claim 1, characterized in that: the sixth pin of the main control chip U1 is grounded.
6. The double-conversion DC power supply control circuit according to claim 1, characterized in that: the fifth pin of the main control chip U1 is connected with the sixth pin of the main control chip U1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122268642.8U CN216056807U (en) | 2021-09-18 | 2021-09-18 | Secondary frequency conversion DC power supply control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122268642.8U CN216056807U (en) | 2021-09-18 | 2021-09-18 | Secondary frequency conversion DC power supply control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216056807U true CN216056807U (en) | 2022-03-15 |
Family
ID=80599321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122268642.8U Expired - Fee Related CN216056807U (en) | 2021-09-18 | 2021-09-18 | Secondary frequency conversion DC power supply control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216056807U (en) |
-
2021
- 2021-09-18 CN CN202122268642.8U patent/CN216056807U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220315 |
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| CF01 | Termination of patent right due to non-payment of annual fee |