The invention discloses an emergency power supply mains supply high-speed
monitoring system which comprises a mains supply
rectifier unit for receiving a mains supply
voltage signal and rectifying the mains supply
voltage signal to obtain a pulsating
direct current voltage signal, a mains supply voltage sampling unit for obtaining a sampled pulsating
direct current voltage signal through the voltage sampling of a pulsating
direct current voltage signal, a synchronous assisted
power supply unit for receiving the pulsating direct
current voltage signal and obtaining a stable pulsating direct
current voltage signal through voltage stabilizing
processing, a
signal amplifier isolation unit for carrying out power amplification isolation
processing on the sampled pulsating direct
current voltage signal, obtaining a pulsating direct current voltage signal which is subjected to power amplification isolation, and outputting the pulsating direct current voltage signal which is subjected to the power amplification isolation. According to the emergency power supply mains supply high-speed
monitoring system, the design of the synchronous assisted
power supply unit is employed, mains supply is directly supplied to the
signal amplifier isolation unit via the synchronous assisted
power supply unit, the circuit structure is simple, and the connection is simple.