A voltage conversion circuit having a noise suppression function and a power supply device

Abstract

The application relates to the technical field of control circuits, and provides a voltage conversion circuit with a noise suppression function and a power supply device, which comprises a control element and a control program; the control program controls the state of the control element according to a preset program; the control element comprises an original voltage unit, a backup voltage power supply, a feedback unit, a suppression unit and a stabilizing unit; the output end of the original voltage unit is connected with the input end of the feedback unit; the output end of the feedback unit is connected with the input end of the suppression unit; the output end of the suppression unit is connected with the stabilizing unit; the output end of the stabilizing unit is connected with a power supply end; the output end of the feedback unit is connected with the input end of the backup voltage unit; and the output end of the backup voltage unit is connected with the stabilizing unit. The application realizes the detection of voltage fluctuation, the supplement of missing voltage signals and the suppression of fluctuation, reduces the vibration noise caused by voltage fluctuation in the circuit, and improves the noise reduction performance of the voltage conversion circuit.

Description

Technical Field

[0001] This invention belongs to the field of control circuit technology, specifically relating to a voltage conversion circuit and power supply device with noise suppression function. Background Technology

[0002] The circuit board of control equipment includes several electrical components, such as inductors, capacitors, and transformers. These components are designed into the circuit to achieve the desired control function. However, because inductors and capacitors inherently possess inductance, and the transformer's coils also have inherent inductance, resonance occurs in the circuit—a process in which inductors and capacitors continuously store and release energy. This vibration causes noise within the equipment, which not only affects its performance but also significantly impacts people or objects in the vicinity that are not noise-tolerant. Therefore, there is an urgent need for a circuit that can suppress noise during voltage conversion to improve voltage conversion quality. Summary of the Invention

[0003] This invention provides a voltage conversion circuit and power supply device with noise suppression function to solve the problem of noise affecting normal use in voltage conversion circuits in the prior art.

[0004] To solve the above-mentioned technical problems, the voltage conversion circuit and power supply device with noise suppression function disclosed in the embodiments of the present invention are implemented as follows:

[0005] In a first aspect, the present invention provides a voltage conversion circuit with noise suppression function. The circuit includes a control element and a control program, wherein the control program controls the state of the control element according to a preset program. The control element includes: a primary voltage unit, a backup voltage power supply, a feedback unit, a suppression unit, and a stabilization unit. The output terminal of the primary voltage unit is connected to the input terminal of the feedback unit, the output terminal of the feedback unit is connected to the input terminal of the suppression unit, the output terminal of the suppression unit is connected to the stabilization unit, and the output terminal of the stabilization unit is connected to the power supply terminal.

[0006] The output terminal of the feedback unit is connected to the input terminal of the backup voltage unit, and the output terminal of the backup voltage unit is connected to the stabilizing unit.

[0007] Optionally, the feedback unit detects the voltage characteristic curve of the original voltage unit and determines the new voltage characteristic curve that needs to be supplemented based on the voltage characteristic curve, and the output voltage of the substitute voltage unit is consistent with the new voltage characteristic curve.

[0008] Optionally, the feedback unit includes a pulse transmitter, a pulse receiver, and a pulse detector. The pulse transmitter emits a first voltage signal of different ranges at a preset frequency. The pulse receiver receives a second voltage signal from the original voltage unit. The pulse detector calculates the difference Δ between the first voltage signal and the second voltage signal. The substitute voltage unit outputs a voltage signal based on the difference Δ.

[0009] Optionally, the suppression unit includes a primary suppression module, a secondary suppression module, and a tertiary suppression module. The primary suppression module and the secondary suppression module are connected in series and then connected in parallel with the tertiary suppression module. Each of the primary suppression module, the secondary suppression module, and the tertiary suppression module includes a plurality of diodes.

[0010] Optionally, the stabilizing unit includes a voltage regulator, the output of which is connected to the power supply terminal.

[0011] Optionally, the suppression unit further includes a shielding module, which is used to shield inductive signals inside and outside the power supply circuit.

[0012] This invention discloses a voltage conversion circuit with noise suppression function. The circuit includes a control element and a control program, wherein the control program is a preset program to control the state of the control element. The control element includes: a primary voltage unit, a backup voltage power supply, a feedback unit, a suppression unit, and a stabilization unit. The output terminal of the primary voltage unit is connected to the input terminal of the feedback unit. The feedback unit determines the voltage signal of the primary voltage unit and identifies the characteristic curve of the voltage to be supplemented (this characteristic curve includes: voltage time, voltage reading, voltage fluctuation frequency, etc.). Then, the feedback unit sends the characteristic curve of the voltage to be supplemented to the suppression unit through its output terminal. The output terminal of the suppression unit is connected to the stabilization unit, which is used to suppress voltage fluctuations. Finally, the voltage signal with suppressed fluctuations is sent to the stabilization unit, which supplies it to the power supply terminal for use. Additionally, the output terminal of the feedback unit is connected to the input terminal of the backup voltage unit. The backup unit is used to supplement the missing unstable voltage signal fed back by the feedback unit. After supplementation, the output terminal of the backup voltage unit is connected to the stabilization unit, and finally, power is supplied to the power supply terminal through the stabilization unit.

[0013] As can be seen from the above, the voltage conversion circuit with noise suppression function disclosed in the embodiments of the present invention realizes the detection of voltage fluctuations, the supplementation of missing voltage signals, and the suppression of fluctuations, thereby reducing the vibration noise caused by voltage fluctuations in the circuit, improving the noise reduction performance of the voltage conversion circuit, and solving the problem of noise affecting normal use in the voltage conversion circuit in the prior art.

[0014] Secondly, the present invention provides a power supply device including any of the aforementioned voltage conversion circuits with noise suppression functions. This stabilizes the voltage signal in the power supply device, reduces vibration noise caused by voltage fluctuations in the power circuit, and improves the performance of the power supply. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a voltage conversion circuit with noise suppression function provided in this embodiment;

[0016] Figure 2 This is a schematic diagram of the feedback unit in a voltage conversion circuit with noise suppression function provided in this embodiment;

[0017] Figure 3 This is a schematic diagram of the consistency module in a voltage conversion circuit with noise suppression function provided in this embodiment. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Reference Figure 1 The diagram illustrates the principle of a voltage conversion circuit with noise suppression function provided in this embodiment; refer to... Figure 2 A schematic diagram of a voltage conversion circuit with noise suppression function provided in this embodiment is shown; refer to Figure 3 The diagram shows a control cabinet button in a voltage conversion circuit with noise suppression function provided in this embodiment.

[0020] like Figures 1 to 3 As shown in the figure, an embodiment of the present invention provides a voltage conversion circuit and power supply device with noise suppression function.

[0021] In a first aspect, the present invention provides a voltage conversion circuit with noise suppression function. The circuit includes a control element and a control program. The control program controls the state of the control element according to a preset program. The control element includes: a primary voltage unit, a backup voltage power supply, a feedback unit, a suppression unit, and a stabilization unit. The output terminal of the primary voltage unit is connected to the input terminal of the feedback unit, the output terminal of the feedback unit is connected to the input terminal of the suppression unit, the output terminal of the suppression unit is connected to the stabilization unit, and the output terminal of the stabilization unit is connected to the power supply terminal. The output terminal of the feedback unit is connected to the input terminal of the backup voltage unit, and the output terminal of the backup voltage unit is connected to the stabilization unit.

[0022] The feedback unit detects the voltage characteristic curve of the original voltage unit and determines the new voltage characteristic curve that needs to be added based on the voltage characteristic curve. The output voltage of the substitute voltage unit is consistent with the new voltage characteristic curve.

[0023] This invention discloses a voltage conversion circuit with noise suppression function, such as... Figure 1 As shown, the circuit includes control elements and a control program, where the control program is a preset program used to control the state of the control elements. The control elements include: a primary voltage unit, a backup voltage power supply, a feedback unit, a suppression unit, and a stabilizing unit. The output of the primary voltage unit is connected to the input of the feedback unit. The feedback unit determines the voltage signal from the primary voltage unit and identifies the characteristic curve of the voltage to be supplemented (this characteristic curve includes: voltage time, voltage reading, voltage fluctuation frequency, etc.). Then, the feedback unit sends the characteristic curve of the voltage to be supplemented to the suppression unit via its output. The output of the suppression unit is connected to the stabilizing unit, which is used to suppress voltage fluctuations. Finally, the voltage signal with suppressed fluctuations is sent to the stabilizing unit, which supplies it to the power supply terminal for use. Additionally, the output of the feedback unit is connected to the input of the backup voltage unit. The backup unit is used to supplement the missing unstable voltage signal fed back by the feedback unit. After supplementation, the output of the backup voltage unit is connected to the stabilizing unit, and finally, power is supplied to the power supply terminal through the stabilizing unit.

[0024] As can be seen from the above analysis, the voltage conversion circuit with noise suppression function disclosed in the embodiments of the present invention realizes the detection of voltage fluctuations, the supplementation of missing voltage signals, and the suppression of fluctuations, thereby reducing the vibration noise caused by voltage fluctuations in the circuit, improving the noise reduction performance of the voltage conversion circuit, and solving the problem of noise affecting normal use in the voltage conversion circuit in the prior art.

[0025] In addition, the aforementioned stabilization unit includes a voltage regulator. The output terminal of the voltage regulator is connected to the power supply terminal. The voltage regulator is used to stabilize the voltage signal in the circuit and transmit the stabilized voltage signal to the power supply terminal so that the power supply terminal receives a stable voltage.

[0026] In some embodiments, such as Figure 2 As shown, the feedback unit in the above circuit includes a pulse transmitter, a pulse receiver, and a pulse detector. The pulse transmitter emits a first voltage signal of different ranges at a preset frequency. The pulse receiver receives the second voltage signal from the original voltage unit. The pulse detector calculates the difference Δ between the first voltage signal and the second voltage signal. The substitute voltage unit outputs a voltage signal based on the difference Δ.

[0027] In this embodiment of the invention, the feedback unit determines the voltage signal of the original voltage unit and identifies the characteristic curve of the voltage to be supplemented (this characteristic curve includes: voltage time, voltage reading, voltage fluctuation frequency, etc.). Then, the feedback unit sends the characteristic curve of the voltage to be supplemented to the suppression unit through its output terminal. Therefore, the feedback unit includes a pulse transmitter that emits a first voltage signal of different ranges at a preset frequency, a pulse receiver that receives the second voltage signal of the original voltage unit, and a pulse detector that calculates the difference Δ between the first and second voltage signals. This allows the substitute voltage unit to output a voltage signal based on the difference Δ fed back by the feedback unit. After supplementing the missing and unstable voltage signal, the substitute unit sends it to the stabilization unit, and finally, the stabilization unit supplies power to the power supply terminal.

[0028] In some embodiments, such as Figure 3 As shown, the suppression unit includes a first-level suppression module, a second-level suppression module, and a third-level suppression module. The first-level suppression module and the second-level suppression module are connected in series and then connected in parallel with the third-level suppression module. Each of the first-level suppression module, the second-level suppression module, and the third-level suppression module includes several diodes.

[0029] In this embodiment of the invention, the suppression unit is used to suppress voltage fluctuations. Therefore, the suppression unit includes a primary suppression module, a secondary suppression module, and a tertiary suppression module. The primary and secondary suppression modules are connected in series and then in parallel with the tertiary suppression module. The series connection of the primary and secondary suppression modules integrates the voltage signals in the circuit, and then the parallel connection with the tertiary suppression module outputs the voltage signals in the circuit with the smoothest voltage curve. This is because, after the circuit is connected in parallel, the voltage signal integrated by the primary and secondary suppression modules is equal to the voltage signal of the tertiary suppression module, thus achieving the purpose of equalization. The method of using multiple suppression modules connected in series and then in parallel in this invention not only increases the effect of suppressing voltage fluctuations but also improves the suppression efficiency.

[0030] In some embodiments, the suppression unit further includes a shielding module for shielding inductive signals both inside and outside the power supply circuit. This shielding module can block the output of internal signals and also prevent external signals from entering the control circuit, thus providing bidirectional shielding.

[0031] Secondly, the present invention provides a power supply device including any of the aforementioned voltage conversion circuits with noise suppression functions. This stabilizes the voltage signal in the power supply device, reduces vibration noise caused by voltage fluctuations in the power circuit, and improves the performance of the power supply.

[0032] Finally, this invention provides a voltage conversion circuit with noise suppression function. The circuit includes a control element and a control program. The control program controls the state of the control element according to a preset program. The control element includes: a primary voltage unit, a backup voltage power supply, a feedback unit, a suppression unit, and a stabilizing unit. The output terminal of the primary voltage unit is connected to the input terminal of the feedback unit, the output terminal of the feedback unit is connected to the input terminal of the suppression unit, the output terminal of the suppression unit is connected to the stabilizing unit, and the output terminal of the stabilizing unit is connected to the power supply terminal. The output terminal of the feedback unit is connected to the input terminal of the backup voltage unit, and the output terminal of the backup voltage unit is connected to the stabilizing unit. This invention discloses a voltage conversion circuit with noise suppression function that achieves voltage fluctuation detection, supplementation of missing voltage signals, and suppression of fluctuations. This reduces vibration noise caused by voltage fluctuations in the circuit, improves the noise reduction performance of the voltage conversion circuit, and solves the problem of noise affecting normal operation in existing voltage conversion circuits.

[0033] It should be noted that the embodiments described above are only some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application. Each embodiment in this specification focuses on describing the differences from other embodiments; similar or identical parts between embodiments can be referred to interchangeably.

Claims

1. A voltage conversion circuit with noise suppression function, characterized in that... The system includes control elements and a control program. The control program controls the state of the control elements according to a preset program. The control elements include: a primary voltage unit, a backup voltage unit, a feedback unit, a suppression unit, and a stabilizing unit. The output terminal of the primary voltage unit is connected to the input terminal of the feedback unit, the output terminal of the feedback unit is connected to the input terminal of the suppression unit, the output terminal of the suppression unit is connected to the stabilizing unit, and the output terminal of the stabilizing unit is connected to the power supply terminal. The output terminal of the feedback unit is connected to the input terminal of the backup voltage unit, and the output terminal of the backup voltage unit is connected to the stabilizing unit. The feedback unit detects the voltage characteristic curve of the primary voltage unit and determines the new voltage characteristic curve that needs to be supplemented based on the voltage characteristic curve. The voltage characteristic curve includes: voltage time, voltage reading, and voltage fluctuation frequency. The output voltage of the substitute voltage unit is consistent with the new voltage characteristic curve; the feedback unit includes a pulse transmitter, a pulse receiver, and a pulse detector. The pulse transmitter emits a first voltage signal of different ranges at a preset frequency, the pulse receiver receives the second voltage signal from the original voltage unit, the pulse detector calculates the difference between the first voltage signal and the second voltage signal, and the substitute voltage unit outputs a voltage signal based on the difference; the suppression unit includes a first-level suppression module, a second-level suppression module, and a third-level suppression module. The first-level suppression module and the second-level suppression module are connected in series and then connected in parallel with the third-level suppression module; the first-level suppression module, the second-level suppression module, and the third-level suppression module include several diodes; the suppression unit also includes a shielding module, which is used to shield the inductive signals inside and outside the power supply circuit.

2. The voltage conversion circuit with noise suppression function according to claim 1, characterized in that... The stabilizing unit includes a voltage regulator, the output of which is connected to the power supply terminal.

3. A power supply device, characterized in that... The power supply device includes a voltage conversion circuit with noise suppression function as described in any one of claims 1 to 2.

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