Power supply test system of output energy DC side feedback

Abstract

The invention discloses a power supply test system of output energy DC side feedback, including an equipment (3) to be tested, the test system includes a PFC power factor correction module (1), an AC or DC power supply module (2), an energy collecting module (4) and an energy feedback module (5); high-voltage DC bus of the PFC powerfactor correction module (1) is respectively connected with inputterminal of the AC or DC power supply module (2) and output terminal of the energy feedback module (5); output terminal of the AC or DC power supply module (2) is connected with input terminal of theequipment (3), input terminal of the energy collecting module (4) is connected with output terminal of the equipment (3), output terminal of the energy collecting module (4) is connected with input terminal of the energy feedback module (5). Applying the system can improve energy recycling efficiency and reduce harmonic interference to power system greatly.

Description

Power supply test system for output energy DC side feedback technical field The invention relates to the technical field of energy-saving electronic products and the field of electric energy conversion and utilization of electric power electronics, and proposes a new power supply test system for electric energy feedback. More specifically, the present invention proposes a DC-side energy feedback power supply test system, which realizes the recovery and utilization of output electric energy, and can be used for various power supply tests and aging experiments. Background technique With the continuous development of power electronics technology, switching power supply is more and more widely used in modern production and life, so the market of switching power supply is also growing. The biggest advantage of switching power supplies over linear power supplies is their higher efficiency. However, in the process of design, testing and production of switching power supplies, lo...

AI Technical Summary

Problems solved by technology

The existing utility model patent (patent name: AC / DC switching power supply energy-saving burn-in device, patent number: ZL200420046920.9) feeds energy back to the DC bus in front of the device under test, but there is no power factor correction circuit on the input side, and at the same time The wave inverter will generate high harmonic interference on the grid side, seriously affecting the grid, requiring a large low-frequency filter, which increases the cost and volume

Images