Multi-winding high-precision DC power supply current stabilizing device

Abstract

The utility model discloses a multi -winding high accuracy direct current source current stabilizing device, including direct current source DC, direct current source DC electric connection has current stabilizing unit, current stabilizing unit electric connection has electromagnetic filter circuit, electromagnetic filter circuit electric connection has rectification & PFC circuit, rectification & PFC circuit electric connection has switching circuit and PWM control circuit, switching circuit and PWM control circuit electric connection has +5VSB detection circuit, relate to power current stabilizing technical field, through stabilivolt, make direct current source DC provide stable voltage output, thereby make current be able to stabilize, in current transmission process, electromagnetic filter circuit carries out electromagnetic filtering, first rectification & filter circuit, second rectification & filter circuit, third rectification & filter circuit carry out rectification and filter, overvoltage protection circuit carries out overvoltage protection, and detection circuit detects whether the component in detection circuit is damaged, further guarantees current output stability.

Description

Technical Field

[0001] This utility model relates to the field of power supply current stabilization technology, specifically a multi-winding high-precision DC power supply current stabilization device. Background Technology

[0002] The instability of DC power supply current is usually caused by the following reasons:

[0003] Unstable input voltage: The input voltage of a DC power supply is usually AC. If the input voltage fluctuates significantly, it will lead to unstable output current. Factors such as fluctuations in mains voltage, changes in mains load, mains faults, and weather changes can all cause mains voltage instability, thus affecting the stability of the output current. In addition, poor contact in the input power line or deterioration of the input power filter performance can also cause input voltage fluctuations, thereby affecting the stability of the output current.

[0004] Load issues: Changes in load directly affect the stability of the output current. Changes in load current, changes in load type (such as short circuit or open circuit), and abnormal conditions such as load short circuit or open circuit can all cause fluctuations in output current.

[0005] Damage to internal components of the power supply: Components such as capacitors, inductors, and diodes inside the DC power supply may age or be damaged during prolonged use or overload operation. The deterioration of the performance of these components will directly affect the stability and reliability of the power supply, resulting in unstable output current. Utility Model Content

[0006] In view of the problems existing in the current stabilization device of the multi-winding high-precision DC power supply, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide a multi-winding high-precision DC power supply current stabilization device, solving the problem of unstable input voltage: the input voltage of a DC power supply is usually AC power, and if the input voltage fluctuates greatly, it will lead to unstable output current. Fluctuations in grid voltage, changes in grid load, grid faults, weather changes, etc., can all lead to grid voltage instability, thus affecting the stability of output current. In addition, poor contact of the input power line or deterioration of the performance of the input power filter can also cause input voltage fluctuations, thereby affecting the stability of output current. Load problems: changes in load directly affect the stability of output current. Changes in load current, changes in load type (such as short circuit or open circuit), and abnormal conditions such as load short circuit or open circuit can all lead to fluctuations in output current. Damage to internal components of the power supply: capacitors, inductors, diodes, and other components inside the DC power supply may age or be damaged during long-term use or overload operation. The deterioration of the performance of these components will directly affect the stability and reliability of the power supply, thus leading to unstable output current and the problem of unstable DC power supply current.

[0008] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0009] A multi-winding high-precision DC power supply current stabilization device includes a DC power supply (DC), which is electrically connected to a current stabilization unit. The current stabilization unit is electrically connected to an electromagnetic filter circuit. The electromagnetic filter circuit is electrically connected to a rectification and PFC circuit. The rectification and PFC circuit is electrically connected to a switching circuit and a PWM control circuit. The switching circuit and PWM control circuit are electrically connected to a +5VSB detection circuit. The +5VSB detection circuit is electrically connected to a first rectification and filter circuit. The first rectification and filter circuit is electrically connected to a +5VSB interface terminal. The first rectification and filter circuit is electrically connected to a first power transformer. The first power transformer is electrically connected to the switching circuit and the PWM control circuit.

[0010] The rectifier & PFC circuit is electrically connected to a switching circuit, and the switching circuit is electrically connected to a third rectifier & filter circuit.

[0011] It also includes a second power transformer electrically connected to a second rectifier and filter circuit, which is electrically connected to a +12 FAN SUPPLY interface terminal.

[0012] In a preferred embodiment of the multi-winding high-precision DC power supply current stabilization device of this utility model, the electromagnetic filter circuit is electrically connected to an I / P interface terminal, the electromagnetic filter circuit is electrically connected to an FG interface terminal, and one end of the electromagnetic filter circuit is grounded.

[0013] In a preferred embodiment of the multi-winding high-precision DC power supply current stabilization device of this utility model, the third rectifier and filter circuit is electrically connected to a first -S interface terminal, the third rectifier and filter circuit is electrically connected to a +V interface terminal, the third rectifier and filter circuit is electrically connected to a -V interface terminal, the third rectifier and filter circuit is electrically connected to a second -S interface terminal, and one end of the -V interface terminal is grounded.

[0014] As a preferred embodiment of the multi-winding high-precision DC power supply current stabilization device of this utility model, the third rectifier and filter circuit is electrically connected to an excitation winding, and the DC voltage of the DC power supply is detected by a signal used to detect the stability of the power supply output voltage.

[0015] As a preferred embodiment of the multi-winding high-precision DC power supply current stabilization device of this utility model, the switching circuit is electrically connected to an overload protection circuit, the overload protection circuit is electrically connected to a control circuit, the control circuit is electrically connected to a detection circuit, the control circuit is electrically connected to an overvoltage protection circuit, and both the overvoltage protection circuit and the detection circuit are electrically connected to the +V interface terminal.

[0016] In a preferred embodiment of the multi-winding high-precision DC power supply current stabilization device of this utility model, the control circuit is electrically connected to a PS / ON control circuit, and the PS / ON control circuit is electrically connected to the PS-ON interface terminal.

[0017] In a preferred embodiment of the multi-winding high-precision DC power supply current stabilization device of this utility model, the current stabilization unit is configured as a voltage regulator.

[0018] As a preferred embodiment of the multi-winding high-precision DC power supply current stabilization device of this utility model, the current stabilization unit is composed of multiple inductors, which are connected in series or in parallel.

[0019] As a preferred embodiment of the multi-winding high-precision DC power supply current stabilization device of this utility model, the current stabilization unit comprises a voltage regulator and multiple inductors, which are connected in series or in parallel.

[0020] The DC power supply is electrically connected to a voltage regulator, the voltage regulator is electrically connected to an inductor, and the inductor is electrically connected to an electromagnetic filter circuit.

[0021] Compared with existing technologies:

[0022] 1. The voltage regulator enables the DC power supply to provide a stable voltage output, thereby stabilizing the current. During the current transmission process, the electromagnetic filter circuit performs electromagnetic filtering, the first rectification & filter circuit, the second rectification & filter circuit, and the third rectification & filter circuit perform rectification and filtering, the overvoltage protection circuit provides overvoltage protection, and the detection circuit detects whether the components in the circuit are damaged, further ensuring the stability of the current output.

[0023] 2. Inductors serve as filters and voltage regulators. Using inductors reduces sudden changes and fluctuations in current, thus maintaining a stable current output. During current transmission, the electromagnetic filter circuit performs electromagnetic filtering, the first rectification & filter circuit, the second rectification & filter circuit, and the third rectification & filter circuit perform rectification and filtering, the overvoltage protection circuit provides overvoltage protection, and the detection circuit detects whether the components in the circuit are damaged. Attached Figure Description

[0024] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present utility model;

[0025] Figure 2 This is a structural schematic diagram of Embodiment 2 of the present invention;

[0026] Figure 3 This is a structural schematic diagram of Embodiment 3 of the present utility model. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0028] Example 1:

[0029] This utility model provides a multi-winding high-precision DC power supply current stabilization device. Please refer to [link / reference]. Figure 1 The system includes a DC power supply (DC), which is electrically connected to a current stabilizing unit. The current stabilizing unit is electrically connected to an electromagnetic filter circuit. The electromagnetic filter circuit is electrically connected to a rectification and PFC circuit. The rectification and PFC circuit is electrically connected to a switching circuit and a PWM control circuit. The switching circuit and PWM control circuit are electrically connected to a +5VSB detection circuit. The +5VSB detection circuit is electrically connected to a first rectification and filter circuit. The first rectification and filter circuit is electrically connected to a +5VSB interface terminal. The first rectification and filter circuit is electrically connected to a first power transformer. The first power transformer is electrically connected to the switching circuit and the PWM control circuit.

[0030] The rectifier & PFC circuit is electrically connected to a switching circuit, and the switching circuit is electrically connected to a third rectifier & filter circuit.

[0031] It also includes a second power transformer electrically connected to a second rectifier and filter circuit, which is electrically connected to a +12 FAN SUPPLY interface terminal.

[0032] The electromagnetic filter circuit is electrically connected to the I / P interface terminal, the electromagnetic filter circuit is electrically connected to the FG interface terminal, and one end of the electromagnetic filter circuit is grounded.

[0033] The third rectification and filtering circuit is electrically connected to a first -S interface terminal, the third rectification and filtering circuit is electrically connected to a +V interface terminal, the third rectification and filtering circuit is electrically connected to a -V interface terminal, the third rectification and filtering circuit is electrically connected to a second -S interface terminal, and one end of the -V interface terminal is grounded.

[0034] The third rectifier and filter circuit is electrically connected to an excitation winding, and detects the DC voltage of the DC power supply through a signal used to detect the stability of the power supply output voltage.

[0035] The switching circuit is electrically connected to an overload protection circuit, the overload protection circuit is electrically connected to a control circuit, the control circuit is electrically connected to a detection circuit, the control circuit is electrically connected to an overvoltage protection circuit, and both the overvoltage protection circuit and the detection circuit are electrically connected to the +V interface terminal.

[0036] The control circuit is electrically connected to a PS / ON control circuit, which is electrically connected to the PS-ON interface. The current stabilization unit is configured as a voltage regulator, which can provide a stable voltage output, thereby stabilizing the current.

[0037] The electromagnetic filter circuit, rectification & PFC circuit, switching circuit, switching circuit and PWM control circuit, +5VSB detection circuit, first rectification & filter circuit, second rectification & filter circuit, third rectification & filter circuit, detection circuit, overvoltage protection circuit, and PS / ON control circuit all use existing technology circuits.

[0038] In practical use, the voltage regulator enables the DC power supply to provide a stable voltage output, thereby stabilizing the current. During the current transmission process, the electromagnetic filter circuit performs electromagnetic filtering, the first rectification & filter circuit, the second rectification & filter circuit, and the third rectification & filter circuit perform rectification and filtering, the overvoltage protection circuit provides overvoltage protection, and the detection circuit detects whether the components in the circuit are damaged.

[0039] Example 2:

[0040] See attached document Figure 2Unlike Embodiment 1, the current stabilizing unit consists of multiple inductors connected in series or parallel. Inductors are common components that can store electrical energy, thus serving as filters and voltage regulators. Using inductors reduces sudden changes and fluctuations in current, thereby maintaining a stable current output.

[0041] In practical applications, inductors serve as filters and voltage regulators. Using inductors reduces sudden changes and fluctuations in current, thereby maintaining a stable current output. During current transmission, electromagnetic filtering circuits perform electromagnetic filtering, while the first, second, and third rectifier & filter circuits perform rectification and filtering. Overvoltage protection circuits provide overvoltage protection, and detection circuits detect whether components in the circuit are damaged.

[0042] Example 3:

[0043] See attached document Figure 3 Unlike Embodiment 1, the current stabilizing unit consists of a voltage regulator and multiple inductors, which are connected in series or in parallel.

[0044] The DC power supply is electrically connected to a voltage regulator, the voltage regulator is electrically connected to an inductor, and the inductor is electrically connected to an electromagnetic filter circuit.

[0045] In practical use, the voltage regulator enables the DC power supply to provide a stable voltage output, thereby stabilizing the current. The inductor plays a role in filtering and voltage regulation, while also reducing current sudden changes and fluctuations to maintain a stable current output. During current transmission, the electromagnetic filter circuit performs electromagnetic filtering, and the first, second, and third rectification and filtering circuits perform rectification and filtering. The overvoltage protection circuit provides overvoltage protection, and the detection circuit detects whether the components in the circuit are damaged.

[0046] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A multi-winding high-precision DC power supply current stabilization device, comprising a DC power supply, characterized in that: The DC power supply is electrically connected to a current stabilizing unit, which is electrically connected to an electromagnetic filter circuit. The electromagnetic filter circuit is electrically connected to a rectification and PFC circuit. The rectification and PFC circuit is electrically connected to a switching circuit and a PWM control circuit. The switching circuit and PWM control circuit are electrically connected to a +5VSB detection circuit. The +5VSB detection circuit is electrically connected to a first rectification and filter circuit. The first rectification and filter circuit is electrically connected to a +5VSB interface terminal. The first rectification and filter circuit is electrically connected to a first power transformer. The first power transformer is electrically connected to the switching circuit and the PWM control circuit. The rectifier & PFC circuit is electrically connected to a switching circuit, and the switching circuit is electrically connected to a third rectifier & filter circuit. It also includes a second power transformer electrically connected to a second rectifier and filter circuit, which is electrically connected to a +12 FAN SUPPLY interface terminal.

2. The multi-winding high-precision DC power supply current stabilization device according to claim 1, characterized in that, The electromagnetic filter circuit is electrically connected to the I / P interface terminal, the electromagnetic filter circuit is electrically connected to the FG interface terminal, and one end of the electromagnetic filter circuit is grounded.

3. The multi-winding high-precision DC power supply current stabilization device according to claim 1, characterized in that, The third rectification and filtering circuit is electrically connected to a first -S interface terminal, the third rectification and filtering circuit is electrically connected to a +V interface terminal, the third rectification and filtering circuit is electrically connected to a -V interface terminal, the third rectification and filtering circuit is electrically connected to a second -S interface terminal, and one end of the -V interface terminal is grounded.

4. The multi-winding high-precision DC power supply current stabilization device according to claim 2, characterized in that, The third rectifier and filter circuit is electrically connected to an excitation winding, and detects the DC voltage of the DC power supply through a signal used to detect the stability of the power supply output voltage.

5. The multi-winding high-precision DC power supply current stabilization device according to claim 3, characterized in that, The switching circuit is electrically connected to an overload protection circuit, the overload protection circuit is electrically connected to a control circuit, the control circuit is electrically connected to a detection circuit, the control circuit is electrically connected to an overvoltage protection circuit, and both the overvoltage protection circuit and the detection circuit are electrically connected to the +V interface terminal.

6. The multi-winding high-precision DC power supply current stabilization device according to claim 5, characterized in that, The control circuit is electrically connected to a PS / ON control circuit, which is electrically connected to the PS-ON interface.

7. The multi-winding high-precision DC power supply current stabilization device according to claim 4, characterized in that, The current stabilization unit is configured as a voltage regulator.

8. The multi-winding high-precision DC power supply current stabilization device according to claim 4, characterized in that, The current stabilizing unit consists of multiple inductors, which are connected in series or in parallel.

9. The multi-winding high-precision DC power supply current stabilization device according to claim 4, characterized in that, The current stabilization unit consists of a voltage regulator and multiple inductors, which are connected in series or in parallel. The DC power supply is electrically connected to a voltage regulator, the voltage regulator is electrically connected to an inductor, and the inductor is electrically connected to an electromagnetic filter circuit.

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