A method and system for switching main and standby power supplies of test equipment
A technology of main and backup power supply and testing equipment, which is applied in the direction of power network operating system integration, emergency power supply arrangement, information technology support system, etc. It can solve problems such as damage, reduce failure rate, increase service life, and improve test efficiency.
Active Publication Date: 2021-11-23
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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Problems solved by technology
[0004] The embodiment of the present invention provides a method and system for switching between active and standby power supplies of test equipment, which solves the damage to the relay caused by the generation of large current during the switching process of the main and standby power supplies, reduces the failure rate of the equipment, and improves the test efficiency
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[0038] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0039] In order to facilitate the understanding of the content of the present invention and the accompanying drawings, the English abbreviations involved in the present invention are explained and illustrated.
[0040] BYPASS: Bypass, refers to the normal power supply road;
[0041] NTC: Thermistor with negative temperature coefficient...
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The embodiment of the invention discloses a method and a system for switching main and standby power supplies of test equipment, and relates to the field of server power supply. The switching method includes setting the inverter output circuit as two control circuits connected in parallel; setting the bypass circuit as two control circuits connected in parallel; Relays are respectively set in each control circuit, and the individual control of each relay is realized through the control signal. The main and standby power switching method and system of the present invention control the switching of the main and standby power through four independent control signal circuits, and use the time difference and NTC to avoid the generation of large current during the power switching process, thereby avoiding the large current from causing damage to the relay. The damage of the equipment reduces the failure rate of the equipment and the economic loss caused by the power failure of the equipment, increases the service life of the device, and improves the test efficiency.
Description
technical field [0001] Embodiments of the present invention relate to the field of server power supply, and in particular to a method and system for switching between active and standby power supplies of test equipment. Background technique [0002] During the testing process of the server, the power supply device of the test equipment mainly adopts the main and standby power switching device. The circuit of the existing main and standby power switching device is as attached figure 1 As shown, the device often has the problem of relay damage during use. The reason is that: on the one hand, the switching process of the main and standby power supplies is on-load switching, and the relay flows through current, which leads to arcing and damages the relay. On the other hand, during the switching process of the main and standby power supplies, the capacitor energy storage is emptied, causing a large current to flow when the relay is switched to the other side, causing damage to t...
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IPC IPC(8): H02J9/04H02J9/06
CPCH02J9/04H02J9/062H02J9/068Y02B70/30Y04S20/20
Inventor 李诚张扬
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD