Lithium voltage alarm:
Understand the lithium voltage alarm and lithium ion battery output voltage problem. For electronic instruments or communication equipment that rely on batteries to work outdoors, low lithium-ion battery voltage will directly affect the accuracy and reliability of the equipment. To this end, it is necessary to install a low battery voltage alarm circuit for these devices, and the low-voltage alarm module can work only after continuous power supply, resulting in accelerating the self-discharge speed of the lithium-ion battery, and ultimately affecting the maintenance time and life of the battery.
Lithium-ion battery low voltage alarm circuit can always monitor the battery end voltage changes, so that when the battery voltage drops to the allowable voltage value, it can timely remind the operator to prepare in advance, one can ensure the normal operation of the equipment without losing important data due to the battery voltage is too low, and the second can make the battery performance and power get full play. The circuit can be connected to any circuit that controls the voltage of the battery pack. Using only a few common components, the low voltage alarm circuit of the universal battery pack is simple in structure, easy to make, low in cost, and less power consumption.
When the battery voltage alarm is monitored to exceed the voltage, when the power grid is monitored to be cut off, the microcomputer host will sound the siren and dial the alarm, and dial 10 groups of alarm phone numbers in a cycle, and play 10 seconds alarm recording to notify the relevant personnel to prevent the accident caused by abnormal voltage, suitable for power companies, substations, distribution rooms and other units.
Lithium-ion battery output voltage:
The detection of lithium-ion battery voltage is crucial for the entire power generation and energy storage system, and the control signals of the system work in different areas according to the different battery voltages. At present, lithium-ion battery voltage measurement methods include mechanical relay isolation detection, differential amplifier isolation detection, voltage partial voltage isolation detection, photoelectric relay isolation detection and so on.
Power module output voltage, but the voltage is lower than the nominal output value is often encountered in the test process, the reason for this situation is nothing more than two, one is the power module is defective or damaged, the second is the use of the problem.
Low input voltage is the most easily ignored situation, when there is a problem with the output, we should first check whether the input is normal. For power modules with constant or wide voltage inputs, a low input value will result in a low output value. Of course, this situation is limited, for a particular module, when the input voltage is too low will cause it to not work, no output voltage.
The output voltage and the input voltage are relative, and are generally carried out by voltage converters. For example, the mobile phone charger, the input voltage is normal 220V, but the general output voltage is 10V when charging the mobile phone. In the course of use, as the discharge platform changes, the voltage of the lithium-ion battery pack usually changes with the capacity of the internal storage.
