Dual-power source switch fast switching controller

Abstract

The invention discloses a dual-power source switch fast switching controller. The dual-power source switch fast switching controller comprises a voltage mutual inductance module, a current mutual inductance module, a voltage limiting protection module, an operational amplifying module, a low-pass filtering module, a control module, a relay output module, a binary input acquisition module, a display module, a key module, a power source module, a power source end isolation module, a voltage stabilization module and a grounding end isolation module. According to the dual-power source switch fast switching controller of the invention, based on anti-jamming processing at many places, the controller can perform millisecond-level operation; and the relay output module is adopted, the controller can be universally applied to power source switching switches in different models.

Description

Technical field [0001] The invention relates to low-voltage electrical control technology, in particular to a dual power switch fast switching controller. Background technique [0002] The dual power switch is a commonly used low-voltage electrical appliance. It is often used to switch between common power and standby power. When a deviation is detected from the common power source, the dual power switch automatically switches the load from the common power source to the standby power source. If the common power supply returns to normal, the load will be automatically returned to the common power supply to ensure the normal power supply of the load circuit; the intelligent controller of the dual power switch is responsible for the detection of the fault signal of the power supply and the execution command for the conversion. The load has different requirements for the switching speed of the dual power switch. The traditional dual power switch is switched in about 2-3 seconds. If ...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: the traditional dual power switch switches in about 2-3 seconds, if the traditional dual power switch is switched at the millisecond level, it is easy to cause a large instantaneous change in the voltage on the main line. The controller of the power switch and its power supply form an impact, causing signal interference, and even burning the controller, so the existing dual power switch cannot meet the switching requirements of milliseconds

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