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AC power supply

An AC power supply and inductance technology, applied in the power supply field, can solve the problems of reducing the distributed capacitance and distributed inductance of the PCB board, difficult to take into account the rational use of the PCB board space, and the low utilization rate of the cooling air of the AC power supply, so as to reduce the distributed capacitance and Distributed inductance, effective heat dissipation, and the effect of improving utilization

Pending Publication Date: 2021-04-09
SHANGHAI HUGONG ELECTRIC WELDING MACHINE MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, PFC inductors, PFC switches, capacitors, and controllers are usually integrated on a PCB circuit board, and the components are connected by wires, so it is difficult to take into account the rational use of PCB board space and reduce the PCB board space during PCB layout. Distributed Capacitance and Distributed Inductance
In addition, the AC power supply with the whole PFC circuit board has a low utilization rate of cooling air and poor cooling effect

Method used

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Examples

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Embodiment 1

[0038] figure 1 is the structural block diagram of the AC power supply in the embodiment, refer to figure 1 In this embodiment, the AC power supply includes a rectifier unit 100, a power factor correction unit 200 and an inverter unit 300, wherein the power factor correction unit 200 includes a power factor correction circuit and a power factor correction controller, and the inverter unit 300 includes an inverter circuit and inverter controller.

[0039] Exemplarily, the rectifier unit 100 and the power factor correction unit 200 are used to convert the three-phase power connected by the AC power source into the direct current power. Specifically, the rectifier unit 100 is used for primary rectification of the three-phase power, and the power factor correction unit 200 is used for Improve the power factor of the AC power supply. The inverter unit 300 is used to convert the direct current into alternating current, so that the alternating current power supplies power to the el...

Embodiment 2

[0061] image 3 is another structural block diagram of the AC power supply in the embodiment, refer to image 3 As a preferred solution, in this embodiment, the AC power supply includes an AC power supply including a rectifier unit 1000 , an interleaved parallel power factor correction unit 2000 , a first inverter unit 3001 and a second inverter unit 3002 . The rectifier unit 1000 is electrically connected to the interleaved parallel power factor correction unit 2000, and the rectifier unit 1000 and the interleaved parallel power factor correction unit 2000 are used for three-phase power conversion. The first inverter unit 3001 and the second inverter unit 3002 are connected in parallel, and the interleaved parallel power factor correction unit 2000 is electrically connected to the first inverter unit 3001 and the second inverter unit 3002, and the first inverter unit 3001 and the second inverter unit 3001. The unit 3002 is used to convert the direct current into alternating ...

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PUM

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Abstract

An AC power supply disclosed by the invention comprises a power factor correction circuit board, an energy storage capacitor plate, cooling fins, an installation plate and a fan. The power factor correction circuit board is arranged on one side of the installation plate in parallel, the cooling fins are arranged on the other side of the installation plate, and the power factor correction circuit board is configured with a DC output end. Capacitors in the energy storage capacitor plate are connected to the DC output end in parallel, the energy storage capacitor plate and the power factor correction circuit board are fixedly connected and perpendicular to each other, the power factor correction circuit board is provided with a power factor correction inductor, the power factor correction inductor is arranged on the surfaces of the cooling fins, and the fan is arranged on the surfaces of the cooling fins.

Description

technical field [0001] The embodiments of the present invention relate to a power supply technology, and in particular, to an AC power supply. Background technique [0002] Power Factor Correction (PFC) circuit is a common circuit structure in AC power supply. The basic PFC circuit usually includes a PFC inductor, a PFC switch, a capacitor and a controller. When the PFC circuit is working, the controller controls the PFC switching cycle. It is turned on, so that the PFC inductor periodically charges the capacitor, so that the input current input to the PFC switch can track the change of the input voltage, thereby improving the power factor of the AC power supply. [0003] In the prior art, PFC inductors, PFC switches, capacitors and controllers are usually integrated on a PCB circuit board, and the components are connected by wires. It is difficult to take into account the rational use of PCB board space and the reduction of PCB board space during PCB layout. Distributed ca...

Claims

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Application Information

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IPC IPC(8): H02M1/00H02M1/42H02M1/32H05K7/20
CPCH02M1/00H02M1/32H02M1/4208H05K7/209H05K7/20909Y02B70/10
Inventor 不公告发明人
Owner SHANGHAI HUGONG ELECTRIC WELDING MACHINE MFG
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