Power source monitoring circuit and power source monitoring device

Abstract

The invention belongs to the technical field of power sources, and particularly relates to a power source monitoring circuit and a power source monitoring device. The power source monitoring circuit comprises a primary monitoring module and a secondary monitoring module. The primary monitoring module generates an electric supply voltage value and current value according to electric supply voltage and current, meanwhile generates an input power value through calculation, generates an input electric energy value through accumulation, and outputs the electric supply voltage value and current value, the input power value and the input electric energy value to the secondary monitoring module according to signals output by the secondary monitoring module or resets the input electric energy value. The secondary monitoring module detects environment temperature, hot-spot temperature and power output voltage, converts the environment temperature, the hot-spot temperature and the power output voltage into numerical values, and controls the primary monitoring module according to control signals output by a host, or the secondary monitoring module converts the numerical values into USB signals, outputs the USB signals to the host and cools a power source according to the control signals output by the host or the environment temperature value and the hot-spot temperature value. According to the power source monitoring circuit and the power source monitoring device, the functions of communication between the power source monitoring circuit and the host in a USB mode, electric energy accumulation and free control over cooling speed are achieved.

Description

technical field [0001] The invention belongs to the technical field of power supplies, and in particular relates to a power monitoring circuit and a power monitoring device. Background technique [0002] With the development of science and technology, people's life is increasingly inseparable from various electronic products. However, most electronic products cannot directly use AC mains power to work, so a power supply device is generally installed inside the electronic product to convert the AC mains power, and the output voltage is suitable for the DC power used by its internal electronic components. Once damaged or used improperly, it will cause serious damage to the electronic product itself, and even cause a fire and cause more serious economic losses. Therefore, it is of great significance to monitor the working state of the power supply device in real time. [0003] However, although existing power monitoring devices, such as server power supplies, can monitor the ...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a power monitoring circuit, which aims to solve the problems of poor versatility, insufficient detection data, high cost and unfree control of fan speed in existing power monitoring circuits.

Images